Merge branch 'dev' of github.com:VLSIDA/PrivateRAM into dev

.gitignore

@@ -5,3 +5,4 @@
 *.out
 *.toc
 *.synctex.gz
+**/model_data

README.md

@@ -26,19 +26,34 @@ predictive and fabricable technologies.
 
 # Basic Setup
 
+## Docker Image
+
+We have a pre-configured Ubuntu [Docker](https://www.docker.com/) image
+available that has all tools installed for the [SCMOS] process. It is
+available at [docker hub](https://hub.docker.com/r/vlsida/openram-ubuntu).
+Please see 
+[our README.md](https://github.com/VLSIDA/openram-docker-images/blob/master/README.md)
+for information on how to use this docker image.
+
+## Dependencies
+
 The OpenRAM compiler has very few dependencies:
 + [Ngspice] 26 (or later) or HSpice I-2013.12-1 (or later) or CustomSim 2017 (or later)
 + Python 3.5 or higher
 + Python numpy (pip3 install numpy to install)
++ Python scipy (pip3 install scipy to install)
 
 If you want to perform DRC and LVS, you will need either:
 + Calibre (for [FreePDK45])
-+ [Magic] + [Netgen] (for [SCMOS])
++ [Magic] 8.2.79 or higher (for [SCMOS])
++ [Netgen] 1.5 (for [SCMOS])
 
 You must set two environment variables: 
 + OPENRAM\_HOME should point to the compiler source directory. 
 + OPENERAM\_TECH should point to a root technology directory.
 
+## Environment
+
 For example add this to your .bashrc:
 
 ```

compiler/base/contact.py

@@ -162,7 +162,7 @@ class contact(hierarchy_design.hierarchy_design):
                       width=well_width,
                       height=well_height)
         
-    def analytical_power(self, proc, vdd, temp, load):
+    def analytical_power(self, corner, load):
         """ Get total power of a module  """
         return self.return_power()
 

compiler/base/design.py

@@ -88,11 +88,11 @@ class design(hierarchy_design):
             self.readonly_ports.append(port_number)
             port_number += 1
 
-    def analytical_power(self, proc, vdd, temp, load):
+    def analytical_power(self, corner, load):
         """ Get total power of a module  """
         total_module_power = self.return_power()
         for inst in self.insts:
-            total_module_power += inst.mod.analytical_power(proc, vdd, temp, load)
+            total_module_power += inst.mod.analytical_power(corner, load)
         return total_module_power
     
     def __str__(self):

compiler/base/hierarchy_design.py

@@ -73,8 +73,8 @@ class hierarchy_design(hierarchy_spice.spice, hierarchy_layout.layout):
 
             global total_drc_errors
             global total_lvs_errors
-            tempspice = OPTS.openram_temp + "/temp.sp"
+            tempspice = "{0}/{1}.sp".format(OPTS.openram_temp,self.name)
-            tempgds = OPTS.openram_temp + "/temp.gds"
+            tempgds = "{0}/{1}.gds".format(OPTS.openram_temp,self.name)
             self.sp_write(tempspice)
             self.gds_write(tempgds)
 
@@ -95,7 +95,7 @@ class hierarchy_design(hierarchy_spice.spice, hierarchy_layout.layout):
 
         if (not OPTS.is_unit_test and OPTS.check_lvsdrc and (OPTS.inline_lvsdrc or final_verification)):
             global total_drc_errors
-            tempgds = OPTS.openram_temp + "/temp.gds"
+            tempgds = "{0}/{1}.gds".format(OPTS.openram_temp,self.name)
             self.gds_write(tempgds)
             num_errors = verify.run_drc(self.name, tempgds, final_verification)  
             total_drc_errors += num_errors
@@ -110,8 +110,8 @@ class hierarchy_design(hierarchy_spice.spice, hierarchy_layout.layout):
 
         if (not OPTS.is_unit_test and OPTS.check_lvsdrc and (OPTS.inline_lvsdrc or final_verification)):
             global total_lvs_errors
-            tempspice = OPTS.openram_temp + "/temp.sp"
+            tempspice = "{0}/{1}.sp".format(OPTS.openram_temp,self.name)
-            tempgds = OPTS.openram_temp + "/temp.gds"
+            tempgds = "{0}/{1}.gds".format(OPTS.openram_temp,self.name)
             self.sp_write(tempspice)
             self.gds_write(tempgds)
             num_errors = verify.run_lvs(self.name, tempgds, tempspice, final_verification)

compiler/base/hierarchy_spice.py

@@ -2,6 +2,7 @@ import debug
 import re
 import os
 import math
+import tech
 
 class spice():
     """
@@ -218,7 +219,7 @@ class spice():
         del usedMODS
         spfile.close()
 
-    def analytical_delay(self, slew, load=0.0):
+    def analytical_delay(self, corner, slew, load=0.0):
         """Inform users undefined delay module while building new modules"""
         debug.warning("Design Class {0} delay function needs to be defined"
                       .format(self.__class__.__name__))
@@ -228,13 +229,19 @@ class spice():
         # return 0 to keep code running while building
         return delay_data(0.0, 0.0)
 
-    def cal_delay_with_rc(self, r, c ,slew, swing = 0.5):
+    def cal_delay_with_rc(self, corner, r, c ,slew, swing = 0.5):
         """ 
         Calculate the delay of a mosfet by 
         modeling it as a resistance driving a capacitance
         """
         swing_factor = abs(math.log(1-swing)) # time constant based on swing
+        proc,vdd,temp = corner
+        #FIXME: type of delay is needed to know which process to use.
+        proc_mult = max(self.get_process_delay_factor(proc)) 
+        volt_mult = self.get_voltage_delay_factor(vdd)
+        temp_mult = self.get_temp_delay_factor(temp)
         delay = swing_factor * r * c #c is in ff and delay is in fs
+        delay = delay * proc_mult * volt_mult * temp_mult
         delay = delay * 0.001 #make the unit to ps
         
         # Output slew should be linear to input slew which is described 
@@ -247,6 +254,36 @@ class spice():
         slew = delay * 0.6 * 2 + 0.005 * slew
         return delay_data(delay = delay, slew = slew)
 
+    def get_process_delay_factor(self, proc):
+        """Returns delay increase estimate based off process
+           Currently does +/-10 for fast/slow corners."""
+        proc_factors = []
+        for mos_proc in proc:
+            if mos_proc == 'T':
+                proc_factors.append(1.0)
+            elif mos_proc == 'F':
+                proc_factors.append(0.9)
+            elif mos_proc == 'S':
+                proc_factors.append(1.1)  
+        return proc_factors
+        
+    def get_voltage_delay_factor(self, voltage):
+        """Returns delay increase due to voltage.
+           Implemented as linear factor based off nominal voltage.
+        """
+        return tech.spice['vdd_nominal']/voltage
+        
+    def get_temp_delay_factor(self, temp):
+        """Returns delay increase due to temperature (in C).
+           Determines effect on threshold voltage and then linear factor is estimated.
+        """
+        #Some portions of equation condensed (phi_t = k*T/q for T in Kelvin) in mV
+        #(k/q)/100 = .008625, The division 100 simplifies the conversion from C to K and mV to V
+        thermal_voltage_nom = .008625*tech.spice["temp_nominal"]
+        thermal_voltage = .008625*temp
+        vthresh = (tech.spice["v_threshold_typical"]+2*(thermal_voltage-thermal_voltage_nom))
+        #Calculate effect on Vdd-Vth. The current vdd is not used here. A separate vdd factor is calculated.
+        return (tech.spice['vdd_nominal'] - tech.spice["v_threshold_typical"])/(tech.spice['vdd_nominal']-vthresh)
 
     def return_delay(self, delay, slew):
         return delay_data(delay, slew)
@@ -254,6 +291,22 @@ class spice():
     def generate_rc_net(self,lump_num, wire_length, wire_width):
         return wire_spice_model(lump_num, wire_length, wire_width)
         
+    def calc_dynamic_power(self, corner, c, freq, swing=1.0):
+        """ 
+        Calculate dynamic power using effective capacitance, frequency, and corner (PVT)
+        """
+        proc,vdd,temp = corner
+        net_vswing = vdd*swing
+        power_dyn = c*vdd*net_vswing*freq
+        
+        #Apply process and temperature factors. Roughly, process and Vdd affect the delay which affects the power.
+        #No other estimations are currently used. Increased delay->slower freq.->less power
+        proc_div = max(self.get_process_delay_factor(proc)) 
+        temp_div = self.get_temp_delay_factor(temp)
+        power_dyn = power_dyn/(proc_div*temp_div)
+        
+        return power_dyn  
+        
     def return_power(self, dynamic=0.0, leakage=0.0):
         return power_data(dynamic, leakage)
 

compiler/bitcells/bitcell.py

@@ -24,7 +24,7 @@ class bitcell(design.design):
         self.height = bitcell.height
         self.pin_map = bitcell.pin_map
         
-    def analytical_delay(self, slew, load=0, swing = 0.5):
+    def analytical_delay(self, corner, slew, load=0, swing = 0.5):
         # delay of bit cell is not like a driver(from WL)
         # so the slew used should be 0
         # it should not be slew dependent?
@@ -33,7 +33,7 @@ class bitcell(design.design):
         from tech import spice
         r = spice["min_tx_r"]*3
         c_para = spice["min_tx_drain_c"]
-        result = self.cal_delay_with_rc(r = r, c =  c_para+load, slew = slew, swing = swing)
+        result = self.cal_delay_with_rc(corner, r = r, c =  c_para+load, slew = slew, swing = swing)
         return result
    
  
@@ -66,7 +66,7 @@ class bitcell(design.design):
         column_pins = ["br"]
         return column_pins
         
-    def analytical_power(self, proc, vdd, temp, load):
+    def analytical_power(self, corner, load):
         """Bitcell power in nW. Only characterizes leakage."""
         from tech import spice
         leakage = spice["bitcell_leakage"]

compiler/bitcells/bitcell_1rw_1r.py

@@ -24,7 +24,7 @@ class bitcell_1rw_1r(design.design):
         self.height = bitcell_1rw_1r.height
         self.pin_map = bitcell_1rw_1r.pin_map
 
-    def analytical_delay(self, slew, load=0, swing = 0.5):
+    def analytical_delay(self, corner, slew, load=0, swing = 0.5):
         # delay of bit cell is not like a driver(from WL)
         # so the slew used should be 0
         # it should not be slew dependent?
@@ -33,7 +33,7 @@ class bitcell_1rw_1r(design.design):
         from tech import spice
         r = spice["min_tx_r"]*3
         c_para = spice["min_tx_drain_c"]
-        result = self.cal_delay_with_rc(r = r, c =  c_para+load, slew = slew, swing = swing)
+        result = self.cal_delay_with_rc(corner, r = r, c =  c_para+load, slew = slew, swing = swing)
         return result
    
  
@@ -89,7 +89,7 @@ class bitcell_1rw_1r(design.design):
         column_pins = ["br0"]
         return column_pins
     
-    def analytical_power(self, proc, vdd, temp, load):
+    def analytical_power(self, corner, load):
         """Bitcell power in nW. Only characterizes leakage."""
         from tech import spice
         leakage = spice["bitcell_leakage"]

compiler/bitcells/bitcell_1w_1r.py

@@ -0,0 +1,106 @@
+import design
+import debug
+import utils
+from tech import GDS,layer,parameter,drc
+
+class bitcell_1w_1r(design.design):
+    """
+    A single bit cell (6T, 8T, etc.)  This module implements the
+    single memory cell used in the design. It is a hand-made cell, so
+    the layout and netlist should be available in the technology
+    library.
+    """
+
+    pin_names = ["bl0", "br0", "bl1", "br1", "wl0", "wl1", "vdd", "gnd"]
+    (width,height) = utils.get_libcell_size("cell_1w_1r", GDS["unit"], layer["boundary"])
+    pin_map = utils.get_libcell_pins(pin_names, "cell_1w_1r", GDS["unit"])
+
+    def __init__(self, name=""):
+        # Ignore the name argument
+        design.design.__init__(self, "cell_1w_1r")
+        debug.info(2, "Create bitcell with 1W and 1R Port")
+
+        self.width = bitcell_1w_1r.width
+        self.height = bitcell_1w_1r.height
+        self.pin_map = bitcell_1w_1r.pin_map
+
+    def analytical_delay(self, corner, slew, load=0, swing = 0.5):
+        # delay of bit cell is not like a driver(from WL)
+        # so the slew used should be 0
+        # it should not be slew dependent?
+        # because the value is there
+        # the delay is only over half transsmission gate
+        from tech import spice
+        r = spice["min_tx_r"]*3
+        c_para = spice["min_tx_drain_c"]
+        result = self.cal_delay_with_rc(corner, r = r, c =  c_para+load, slew = slew, swing = swing)
+        return result
+   
+ 
+    def list_bitcell_pins(self, col, row):
+        """ Creates a list of connections in the bitcell, indexed by column and row, for instance use in bitcell_array """
+        bitcell_pins = ["bl0_{0}".format(col),
+                        "br0_{0}".format(col),
+                        "bl1_{0}".format(col),
+                        "br1_{0}".format(col),
+                        "wl0_{0}".format(row),
+                        "wl1_{0}".format(row),
+                        "vdd",
+                        "gnd"]
+        return bitcell_pins
+    
+    def list_all_wl_names(self):
+        """ Creates a list of all wordline pin names """
+        row_pins = ["wl0", "wl1"]    
+        return row_pins
+    
+    def list_all_bitline_names(self):
+        """ Creates a list of all bitline pin names (both bl and br) """
+        column_pins = ["bl0", "br0", "bl1", "br1"]
+        return column_pins
+    
+    def list_all_bl_names(self):
+        """ Creates a list of all bl pins names """
+        column_pins = ["bl0", "bl1"]
+        return column_pins
+        
+    def list_all_br_names(self):
+        """ Creates a list of all br pins names """
+        column_pins = ["br0", "br1"]
+        return column_pins
+        
+    def list_read_bl_names(self):
+        """ Creates a list of bl pin names associated with read ports """
+        column_pins = ["bl0", "bl1"]
+        return column_pins
+    
+    def list_read_br_names(self):
+        """ Creates a list of br pin names associated with read ports """
+        column_pins = ["br0", "br1"]
+        return column_pins
+        
+    def list_write_bl_names(self):
+        """ Creates a list of bl pin names associated with write ports """
+        column_pins = ["bl0"]
+        return column_pins
+    
+    def list_write_br_names(self):
+        """ Creates a list of br pin names asscociated with write ports"""
+        column_pins = ["br0"]
+        return column_pins
+    
+    def analytical_power(self, corner, load):
+        """Bitcell power in nW. Only characterizes leakage."""
+        from tech import spice
+        leakage = spice["bitcell_leakage"]
+        dynamic = 0 #temporary
+        total_power = self.return_power(dynamic, leakage)
+        return total_power
+
+    def get_wl_cin(self):
+        """Return the relative capacitance of the access transistor gates"""
+        #This is a handmade cell so the value must be entered in the tech.py file or estimated.
+        #Calculated in the tech file by summing the widths of all the related gates and dividing by the minimum width.
+        #FIXME: sizing is not accurate with the handmade cell. Change once cell widths are fixed.
+        access_tx_cin = parameter["6T_access_size"]/drc["minwidth_tx"]
+        return 2*access_tx_cin

compiler/bitcells/pbitcell.py

@@ -866,15 +866,15 @@ class pbitcell(design.design):
         vdd_pos = self.inverter_pmos_right.get_pin("D").center()
         self.add_path("metal1", [Q_bar_pos, vdd_pos])
 
-    def analytical_delay(self, slew, load=0, swing = 0.5):
+    def analytical_delay(self, corner, slew, load=0, swing = 0.5):
         #FIXME: Delay copied exactly over from bitcell
         from tech import spice
         r = spice["min_tx_r"]*3
         c_para = spice["min_tx_drain_c"]
-        result = self.cal_delay_with_rc(r = r, c =  c_para+load, slew = slew, swing = swing)
+        result = self.cal_delay_with_rc(corner, r = r, c =  c_para+load, slew = slew, swing = swing)
         return result
         
-    def analytical_power(self, proc, vdd, temp, load):
+    def analytical_power(self, corner, load):
         """Bitcell power in nW. Only characterizes leakage."""
         from tech import spice
         leakage = spice["bitcell_leakage"]

compiler/bitcells/replica_bitcell_1w_1r.py

@@ -0,0 +1,32 @@
+import design
+import debug
+import utils
+from tech import GDS,layer,drc,parameter
+
+class replica_bitcell_1w_1r(design.design):
+    """
+    A single bit cell which is forced to store a 0.
+    This module implements the single memory cell used in the design. It
+    is a hand-made cell, so the layout and netlist should be available in
+    the technology library. """
+
+    pin_names = ["bl0", "br0", "bl1", "br1", "wl0", "wl1", "vdd", "gnd"]
+    (width,height) = utils.get_libcell_size("replica_cell_1w_1r", GDS["unit"], layer["boundary"])
+    pin_map = utils.get_libcell_pins(pin_names, "replica_cell_1w_1r", GDS["unit"])
+
+    def __init__(self, name=""):
+        # Ignore the name argument        
+        design.design.__init__(self, "replica_cell_1w_1r")
+        debug.info(2, "Create replica bitcell 1w+1r object")
+
+        self.width = replica_bitcell_1w_1r.width
+        self.height = replica_bitcell_1w_1r.height
+        self.pin_map = replica_bitcell_1w_1r.pin_map
+
+    def get_wl_cin(self):
+        """Return the relative capacitance of the access transistor gates"""
+        #This is a handmade cell so the value must be entered in the tech.py file or estimated.
+        #Calculated in the tech file by summing the widths of all the related gates and dividing by the minimum width.
+        #FIXME: sizing is not accurate with the handmade cell. Change once cell widths are fixed.
+        access_tx_cin = parameter["6T_access_size"]/drc["minwidth_tx"]
+        return 2*access_tx_cin

compiler/characterizer/__init__.py

@@ -9,6 +9,8 @@ from .functional import *
 from .worst_case import *
 from .simulation import *
 from .bitline_delay import *
+from .measurements import *
+from .model_check import *
 
 debug.info(1,"Initializing characterizer...")
 OPTS.spice_exe = ""

compiler/characterizer/bitline_delay.py

@@ -22,10 +22,23 @@ class bitline_delay(delay):
         self.period = tech.spice["feasible_period"]
         self.is_bitline_measure = True
     
+    def create_signal_names(self):
+        delay.create_signal_names(self)
+        self.bl_signal_names = ["Xsram.Xbank0.bl", "Xsram.Xbank0.br"]
+        self.sen_name = "Xsram.s_en"
+
     def create_measurement_names(self):
         """Create measurement names. The names themselves currently define the type of measurement"""
         #Altering the names will crash the characterizer. TODO: object orientated approach to the measurements.
-        self.bitline_meas_names = ["bl_volt", "br_volt"]
+        self.bl_volt_meas_names = ["volt_bl", "volt_br"]
+        self.bl_delay_meas_names = ["delay_bl", "delay_br"] #only used in SPICE simulation
+        self.bl_delay_result_name = "delay_bl_vth" #Used in the return value
+    
+    def set_probe(self,probe_address, probe_data):
+        """ Probe address and data can be set separately to utilize other
+        functions in this characterizer besides analyze."""
+        delay.set_probe(self,probe_address, probe_data)
+        self.bitline_column = self.get_data_bit_column_number(probe_address, probe_data)
         
     def write_delay_measures(self):
         """
@@ -38,26 +51,52 @@ class bitline_delay(delay):
             self.sf.write("* {}\n".format(comment))
             
         for read_port in self.targ_read_ports:
-           self.write_bitline_measures_read_port(read_port)       
+           self.write_bitline_voltage_measures(read_port)       
+           self.write_bitline_delay_measures(read_port)
            
-    def write_bitline_measures_read_port(self, port):
+    def write_bitline_voltage_measures(self, port):
+        """
+        Add measurments to capture the bitline voltages at 50% Sense amp enable
+        """
+        debug.info(2, "Measuring bitline column={}, port={}".format(self.bitline_column,port))
+        if len(self.all_ports) == 1: #special naming case for single port sram bitlines
+            bitline_port = ""
+        else:
+            bitline_port = str(port)
+            
+        sen_port_name = "{}{}".format(self.sen_name,port)
+        for (measure_name, bl_signal_name) in zip(self.bl_volt_meas_names, self.bl_signal_names):
+            bl_port_name = "{}{}_{}".format(bl_signal_name, bitline_port, self.bitline_column)
+            measure_port_name = "{}{}".format(measure_name,port)
+            self.stim.gen_meas_find_voltage(measure_port_name, sen_port_name, bl_port_name, .5, "RISE", self.cycle_times[self.measure_cycles[port]["read0"]])
+    
+    def write_bitline_delay_measures(self, port):
         """
         Write the measure statements to quantify the delay and power results for a read port.
         """
         # add measure statements for delays/slews
-        measure_bitline = self.get_data_bit_column_number(self.probe_address, self.probe_data)
+        for (measure_name, bl_signal_name) in zip(self.bl_delay_meas_names, self.bl_signal_names):
-        debug.info(2, "Measuring bitline column={}".format(measure_bitline))
+            meas_values = self.get_delay_meas_values(measure_name, bl_signal_name, port)
-        for port in self.targ_read_ports:
+            self.stim.gen_meas_delay(*meas_values)
-            if len(self.all_ports) == 1: #special naming case for single port sram bitlines
-                bitline_port = ""
-            else:
-                bitline_port = str(port)
     
-            sen_name = "Xsram.s_en{}".format(port)
+    def get_delay_meas_values(self, delay_name, bitline_name, port):
-            bl_name = "Xsram.Xbank0.bl{}_{}".format(bitline_port, measure_bitline)
+        """Get the values needed to generate a Spice measurement statement based on the name of the measurement."""
-            br_name = "Xsram.Xbank0.br{}_{}".format(bitline_port, measure_bitline)
+        if len(self.all_ports) == 1: #special naming case for single port sram bitlines
-            self.stim.gen_meas_find_voltage("bl_volt", sen_name, bl_name, .5, "RISE", self.cycle_times[self.measure_cycles[port]["read0"]])
+            bitline_port = ""
-            self.stim.gen_meas_find_voltage("br_volt", sen_name, br_name, .5, "RISE", self.cycle_times[self.measure_cycles[port]["read0"]])
+        else:
+            bitline_port = str(port)
+        
+        meas_name="{0}{1}".format(delay_name, port)
+        targ_name = "{0}{1}_{2}".format(bitline_name,bitline_port,self.bitline_column)
+        half_vdd = 0.5 * self.vdd_voltage
+        trig_val = half_vdd
+        targ_val = self.vdd_voltage-tech.spice["v_threshold_typical"]
+        trig_name = "clk{0}".format(port)
+        trig_dir="FALL" 
+        targ_dir="FALL"
+        #Half period added to delay measurement to negative clock edge
+        trig_td = targ_td = self.cycle_times[self.measure_cycles[port]["read0"]]  + self.period/2
+        return (meas_name,trig_name,targ_name,trig_val,targ_val,trig_dir,targ_dir,trig_td,targ_td)
     
     def gen_test_cycles_one_port(self, read_port, write_port):
         """Sets a list of key time-points [ns] of the waveform (each rising edge)
@@ -89,6 +128,7 @@ class bitline_delay(delay):
         self.add_read("R data 0 address {} to check W0 worked".format(self.probe_address),
                       self.probe_address,data_zeros,read_port)
         self.measure_cycles[read_port]["read0"] = len(self.cycle_times)-1
+        
     def get_data_bit_column_number(self, probe_address, probe_data):
         """Calculates bitline column number of data bit under test using bit position and mux size"""
         if self.sram.col_addr_size>0:
@@ -115,19 +155,70 @@ class bitline_delay(delay):
         self.stim.run_sim() #running sim prodoces spice output file.
           
         for port in self.targ_read_ports:  
-            bitlines_meas_vals = {}
+            #Parse and check the voltage measurements
-            for mname in self.bitline_meas_names:
+            bl_volt_meas_dict = {}  
-                bitlines_meas_vals[mname] = parse_spice_list("timing", mname)
+            for mname in self.bl_volt_meas_names:
-            #Check that power parsing worked.
+                mname_port = "{}{}".format(mname,port)
-            for name, val in bitlines_meas_vals.items():
+                volt_meas_val = parse_spice_list("timing", mname_port)
-                if type(val)!=float:
+                if type(volt_meas_val)!=float:
-                    debug.error("Failed to Parse Bitline Values:\n\t\t{0}".format(bitlines_meas_vals),1) #Printing the entire dict looks bad.
+                    debug.error("Failed to Parse Bitline Voltage:\n\t\t{0}={1}".format(mname,volt_meas_val),1)
-            result[port].update(bitlines_meas_vals)
+                bl_volt_meas_dict[mname] = volt_meas_val
+            result[port].update(bl_volt_meas_dict)
 
+            #Parse and check the delay measurements. Intended that one measurement will fail, save the delay that did not fail.
+            bl_delay_meas_dict = {}
+            values_added = 0 #For error checking
+            for mname in self.bl_delay_meas_names: #Parse 
+                mname_port = "{}{}".format(mname,port)
+                delay_meas_val = parse_spice_list("timing", mname_port) 
+                if type(delay_meas_val)==float: #Only add if value is float, do not error.
+                    bl_delay_meas_dict[self.bl_delay_result_name] = delay_meas_val * 1e9 #convert to ns
+                    values_added+=1
+            debug.check(values_added>0, "Bitline delay measurements failed in SPICE simulation.")
+            debug.check(values_added<2, "Both bitlines experienced a Vth drop, check simulation results.")  
+            result[port].update(bl_delay_meas_dict)
         
         # The delay is from the negative edge for our SRAM
         return (True,result)
     
+    def check_bitline_all_results(self, results):
+        """Checks the bitline values measured for each tested port"""
+        for port in self.targ_read_ports:
+            self.check_bitline_port_results(results[port])
+  
+    def check_bitline_port_results(self, port_results):
+        """Performs three different checks for the bitline values: functionality, bitline swing from vdd, and differential bit swing"""
+        bl_volt, br_volt = port_results["volt_bl"], port_results["volt_br"]
+        self.check_functionality(bl_volt,br_volt)
+        self.check_swing_from_vdd(bl_volt,br_volt)
+        self.check_differential_swing(bl_volt,br_volt)
+        
+    def check_functionality(self, bl_volt, br_volt):
+        """Checks whether the read failed or not. Measured values are hardcoded with the intention of reading a 0."""
+        if bl_volt > br_volt:
+            debug.error("Read failure. Value 1 was read instead of 0.",1)
+            
+    def check_swing_from_vdd(self, bl_volt, br_volt):
+        """Checks difference on discharging bitline from VDD to see if it is within margin of the RBL height parameter."""
+        if bl_volt < br_volt:
+            discharge_volt = bl_volt
+        else:
+            discharge_volt = br_volt
+        desired_bl_volt = tech.parameter["rbl_height_percentage"]*self.vdd_voltage
+        debug.info(1, "Active bitline={:.3f}v, Desired bitline={:.3f}v".format(discharge_volt,desired_bl_volt))
+        vdd_error_margin = .2 #20% of vdd margin for bitline, a little high for now.
+        if abs(discharge_volt - desired_bl_volt) > vdd_error_margin*self.vdd_voltage:
+            debug.warning("Bitline voltage is not within {}% Vdd margin. Delay chain/RBL could need resizing.".format(vdd_error_margin*100))
+    
+    def check_differential_swing(self, bl_volt, br_volt):
+        """This check looks at the difference between the bitline voltages. This needs to be large enough to prevent
+           sensing errors."""
+        bitline_swing = abs(bl_volt-br_volt)
+        debug.info(1,"Bitline swing={:.3f}v".format(bitline_swing))
+        vdd_error_margin = .2 #20% of vdd margin for bitline, a little high for now.
+        if bitline_swing < vdd_error_margin*self.vdd_voltage:
+            debug.warning("Bitline swing less than {}% Vdd margin. Sensing errors more likely to occur.".format(vdd_error_margin))
+            
     def analyze(self, probe_address, probe_data, slews, loads):
         """Measures the bitline swing of the differential bitlines (bl/br) at 50% s_en """
         self.set_probe(probe_address, probe_data)
@@ -141,10 +232,10 @@ class bitline_delay(delay):
         debug.info(1,"Bitline swing test: corner {}".format(self.corner))
         (success, results)=self.run_delay_simulation()
         debug.check(success, "Bitline Failed: period {}".format(self.period))
-        for mname in self.bitline_meas_names:
+        debug.info(1,"Bitline values (voltages/delays):\n\t {}".format(results[read_port]))
-            bitline_swings[mname] = results[read_port][mname]
+        self.check_bitline_all_results(results)
-        debug.info(1,"Bitline values (bl/br): {}".format(bitline_swings))
+        
-        return bitline_swings
+        return results
 
         
     

compiler/characterizer/charutils.py

@@ -80,3 +80,10 @@ def convert_to_float(number):
         debug.error("Invalid number: {0}".format(number),1)
 
     return float_value
+
+def check_dict_values_is_float(dict):
+    """Checks if all the values are floats. Useful for checking failed Spice measurements."""
+    for key, value in dict.items():
+            if type(value)!=float:
+                return False
+    return True

compiler/characterizer/delay.py

@@ -8,6 +8,7 @@ from .charutils import *
 import utils
 from globals import OPTS
 from .simulation import simulation
+from .measurements import *
 
 class delay(simulation):
     """Functions to measure the delay and power of an SRAM at a given address and
@@ -35,16 +36,91 @@ class delay(simulation):
         self.period = 0
         self.set_load_slew(0,0)
         self.set_corner(corner)
-        self.create_signal_names()
-        
-        #Create global measure names. Should maybe be an input at some point.
-        self.create_measurement_names()
         
     def create_measurement_names(self):
         """Create measurement names. The names themselves currently define the type of measurement"""
         #Altering the names will crash the characterizer. TODO: object orientated approach to the measurements.
         self.delay_meas_names = ["delay_lh", "delay_hl", "slew_lh", "slew_hl"]
         self.power_meas_names = ["read0_power", "read1_power", "write0_power", "write1_power"]
+        self.voltage_when_names = ["volt_bl", "volt_br"]
+        self.bitline_delay_names = ["delay_bl", "delay_br"]
+       
+    def create_measurement_objects(self):
+        """Create the measurements used for read and write ports"""
+        self.create_read_port_measurement_objects()
+        self.create_write_port_measurement_objects()
+
+    def create_read_port_measurement_objects(self):
+        """Create the measurements used for read ports: delays, slews, powers"""
+        
+        self.read_meas_objs = []
+        trig_delay_name = "clk{0}"
+        targ_name = "{0}{1}_{2}".format(self.dout_name,"{}",self.probe_data) #Empty values are the port and probe data bit
+        self.read_meas_objs.append(delay_measure("delay_lh", trig_delay_name, targ_name, "RISE", "RISE", measure_scale=1e9))
+        self.read_meas_objs[-1].meta_str = "read1" #Used to index time delay values when measurements written to spice file.
+        self.read_meas_objs.append(delay_measure("delay_hl", trig_delay_name, targ_name, "FALL", "FALL", measure_scale=1e9))
+        self.read_meas_objs[-1].meta_str = "read0"
+        
+        self.read_meas_objs.append(slew_measure("slew_lh", targ_name, "RISE", measure_scale=1e9))
+        self.read_meas_objs[-1].meta_str = "read1"
+        self.read_meas_objs.append(slew_measure("slew_hl", targ_name, "FALL", measure_scale=1e9))
+        self.read_meas_objs[-1].meta_str = "read0"
+        
+        self.read_meas_objs.append(power_measure("read1_power", "RISE", measure_scale=1e3))
+        self.read_meas_objs[-1].meta_str = "read1"
+        self.read_meas_objs.append(power_measure("read0_power", "FALL", measure_scale=1e3))
+        self.read_meas_objs[-1].meta_str = "read0"
+        
+        #This will later add a half-period to the spice time delay. Only for reading 0.
+        for obj in self.read_meas_objs:
+            if obj.meta_str is "read0":
+                obj.meta_add_delay = True
+
+        trig_name = "Xsram.s_en{}" #Sense amp enable
+        if len(self.all_ports) == 1: #special naming case for single port sram bitlines which does not include the port in name
+            port_format = ""
+        else:
+            port_format = "{}"
+        
+        bl_name = "Xsram.Xbank0.bl{}_{}".format(port_format, self.bitline_column)
+        br_name = "Xsram.Xbank0.br{}_{}".format(port_format, self.bitline_column)
+        self.read_meas_objs.append(voltage_when_measure(self.voltage_when_names[0], trig_name, bl_name, "RISE", .5))
+        self.read_meas_objs.append(voltage_when_measure(self.voltage_when_names[1], trig_name, br_name, "RISE", .5))
+        
+        #These are read values but need to be separated for unique error checking.
+        self.create_bitline_delay_measurement_objects()
+    
+    def create_bitline_delay_measurement_objects(self):
+        """Create the measurements used for bitline delay values. Due to unique error checking, these are separated from other measurements.
+           These measurements are only associated with read values
+        """
+        self.bitline_delay_objs = []
+        trig_name = "clk{0}"
+        if len(self.all_ports) == 1: #special naming case for single port sram bitlines which does not include the port in name
+            port_format = ""
+        else:
+            port_format = "{}"
+        bl_name = "Xsram.Xbank0.bl{}_{}".format(port_format, self.bitline_column)
+        br_name = "Xsram.Xbank0.br{}_{}".format(port_format, self.bitline_column)
+        targ_val = (self.vdd_voltage - tech.spice["v_threshold_typical"])/self.vdd_voltage #Calculate as a percentage of vdd
+        
+        targ_name = "{0}{1}_{2}".format(self.dout_name,"{}",self.probe_data) #Empty values are the port and probe data bit
+        self.bitline_delay_objs.append(delay_measure(self.bitline_delay_names[0], trig_name, bl_name, "FALL", "FALL", targ_vdd=targ_val, measure_scale=1e9))
+        self.bitline_delay_objs[-1].meta_str = "read0"
+        self.bitline_delay_objs.append(delay_measure(self.bitline_delay_names[1], trig_name, br_name, "FALL", "FALL", targ_vdd=targ_val, measure_scale=1e9))
+        self.bitline_delay_objs[-1].meta_str = "read1"
+        #Enforces the time delay on the bitline measurements for read0 or read1
+        for obj in self.bitline_delay_objs:
+            obj.meta_add_delay = True
+        
+    def create_write_port_measurement_objects(self):
+        """Create the measurements used for read ports: delays, slews, powers"""
+        self.write_meas_objs = []
+
+        self.write_meas_objs.append(power_measure("write1_power", "RISE", measure_scale=1e3))
+        self.write_meas_objs[-1].meta_str = "write1"
+        self.write_meas_objs.append(power_measure("write0_power", "FALL", measure_scale=1e3))
+        self.write_meas_objs[-1].meta_str = "write0"
      
     def create_signal_names(self):
         self.addr_name = "A"
@@ -198,86 +274,75 @@ class delay(simulation):
 
         self.sf.close()
         
-    def get_delay_meas_values(self, delay_name, port):
+    def get_read_measure_variants(self, port, measure_obj):
-        """Get the values needed to generate a Spice measurement statement based on the name of the measurement."""
+        """Checks the measurement object and calls respective function for related measurement inputs."""
-        debug.check('lh' in delay_name or 'hl' in delay_name, "Measure command {0} does not contain direction (lh/hl)")
+        meas_type = type(measure_obj)
-        trig_clk_name = "clk{0}".format(port)
+        if meas_type is delay_measure or meas_type is slew_measure:
-        meas_name="{0}{1}".format(delay_name, port)
+            return self.get_delay_measure_variants(port, measure_obj)
-        targ_name = "{0}".format("{0}{1}_{2}".format(self.dout_name,port,self.probe_data))
+        elif meas_type is power_measure:
-        half_vdd = 0.5 * self.vdd_voltage
+            return self.get_power_measure_variants(port, measure_obj, "read")
-        trig_slew_low = 0.1 * self.vdd_voltage
+        elif meas_type is voltage_when_measure:
-        targ_slew_high = 0.9 * self.vdd_voltage
+            return self.get_volt_when_measure_variants(port, measure_obj)
-        if 'delay' in delay_name:
-            trig_val = half_vdd
-            targ_val = half_vdd
-            trig_name = trig_clk_name
-            if 'lh' in delay_name:
-                trig_dir="RISE" 
-                targ_dir="RISE"
-                trig_td = targ_td = self.cycle_times[self.measure_cycles[port]["read1"]]
-            else:
-                trig_dir="FALL" 
-                targ_dir="FALL"
-                trig_td = targ_td = self.cycle_times[self.measure_cycles[port]["read0"]] 
-                    
-        elif 'slew' in delay_name:
-            trig_name = targ_name
-            if 'lh' in delay_name:
-                trig_val = trig_slew_low
-                targ_val = targ_slew_high
-                targ_dir = trig_dir = "RISE"
-                trig_td = targ_td = self.cycle_times[self.measure_cycles[port]["read1"]]
-            else:
-                trig_val = targ_slew_high 
-                targ_val = trig_slew_low
-                targ_dir = trig_dir = "FALL"
-                trig_td = targ_td = self.cycle_times[self.measure_cycles[port]["read0"]] 
         else:
-            debug.error(1, "Measure command {0} not recognized".format(delay_name))
+            debug.error("Input function not defined for measurement type={}".format(meas_type))
-        return (meas_name,trig_name,targ_name,trig_val,targ_val,trig_dir,targ_dir,trig_td,targ_td)
+            
+    def get_delay_measure_variants(self, port, delay_obj):
+        """Get the measurement values that can either vary from simulation to simulation (vdd, address) or port to port (time delays)"""
+        #Return value is intended to match the delay measure format:  trig_td, targ_td, vdd, port
+        #vdd is arguably constant as that is true for a single lib file.
+        if delay_obj.meta_str == "read0":
+            #Falling delay are measured starting from neg. clk edge. Delay adjusted to that.
+            meas_cycle_delay = self.cycle_times[self.measure_cycles[port][delay_obj.meta_str]]
+        elif delay_obj.meta_str == "read1":
+            meas_cycle_delay = self.cycle_times[self.measure_cycles[port][delay_obj.meta_str]]
+        else:
+            debug.error("Unrecognised delay Index={}".format(delay_obj.meta_str),1)
+            
+        if delay_obj.meta_add_delay:    
+            meas_cycle_delay += self.period/2
+            
+        return (meas_cycle_delay, meas_cycle_delay, self.vdd_voltage, port)
+    
+    def get_power_measure_variants(self, port, power_obj, operation):
+        """Get the measurement values that can either vary port to port (time delays)"""
+        #Return value is intended to match the power measure format:  t_initial, t_final, port
+        t_initial = self.cycle_times[self.measure_cycles[port][power_obj.meta_str]]
+        t_final = self.cycle_times[self.measure_cycles[port][power_obj.meta_str]+1]
+    
+        return (t_initial, t_final, port)
+    
+    def get_volt_when_measure_variants(self, port, power_obj):
+        """Get the measurement values that can either vary port to port (time delays)"""
+        #Only checking 0 value reads for now.
+        t_trig = meas_cycle_delay = self.cycle_times[self.measure_cycles[port]["read0"]]
+
+        return (t_trig, self.vdd_voltage, port)
     
     def write_delay_measures_read_port(self, port):
         """
         Write the measure statements to quantify the delay and power results for a read port.
         """
         # add measure statements for delays/slews
-        for dname in self.delay_meas_names:
+        for measure in self.read_meas_objs+self.bitline_delay_objs:
-            meas_values = self.get_delay_meas_values(dname, port)
+            measure_variant_inp_tuple = self.get_read_measure_variants(port, measure)
-            self.stim.gen_meas_delay(*meas_values)
+            measure.write_measure(self.stim, measure_variant_inp_tuple)
 
-        # add measure statements for power
+    def get_write_measure_variants(self, port, measure_obj):
-        for pname in self.power_meas_names:
+        """Checks the measurement object and calls respective function for related measurement inputs."""
-            if "read" not in pname:
+        meas_type = type(measure_obj)
-                continue
+        if meas_type is power_measure:
-            #Different naming schemes are used for the measure cycle dict and measurement names. 
+            return self.get_power_measure_variants(port, measure_obj, "write")
-            #TODO: make them the same so they can be indexed the same.
+        else:
-            if '1' in pname:
+            debug.error("Input function not defined for measurement type={}".format(meas_type))        
-                t_initial = self.cycle_times[self.measure_cycles[port]["read1"]]
-                t_final = self.cycle_times[self.measure_cycles[port]["read1"]+1]
-            elif '0' in pname:
-                t_initial = self.cycle_times[self.measure_cycles[port]["read0"]]
-                t_final = self.cycle_times[self.measure_cycles[port]["read0"]+1]
-            self.stim.gen_meas_power(meas_name="{0}{1}".format(pname, port),
-                                     t_initial=t_initial,
-                                     t_final=t_final)
             
     def write_delay_measures_write_port(self, port):
         """
         Write the measure statements to quantify the power results for a write port.
         """
         # add measure statements for power
-        for pname in self.power_meas_names:
+        for measure in self.write_meas_objs:
-            if "write" not in pname:
+            measure_variant_inp_tuple = self.get_write_measure_variants(port, measure)
-                continue
+            measure.write_measure(self.stim, measure_variant_inp_tuple)
-            t_initial = self.cycle_times[self.measure_cycles[port]["write0"]]
-            t_final = self.cycle_times[self.measure_cycles[port]["write0"]+1]
-            if '1' in pname:
-                t_initial = self.cycle_times[self.measure_cycles[port]["write1"]]
-                t_final = self.cycle_times[self.measure_cycles[port]["write1"]+1]
-        
-            self.stim.gen_meas_power(meas_name="{0}{1}".format(pname, port),
-                                     t_initial=t_initial,
-                                     t_final=t_final)
 
     def write_delay_measures(self):
         """
@@ -386,27 +451,6 @@ class delay(simulation):
         debug.info(1, "Found feasible_period: {0}ns".format(self.period))
         return feasible_delays
     
-                
-    def parse_values(self, values_names, port, mult = 1.0):
-        """Parse multiple values in the timing output file. Optional multiplier.
-           Return a dict of the input names and values. Port used for parsing file.
-        """
-        values = []
-        all_values_floats = True
-        for vname in values_names:
-            #ngspice converts all measure characters to lowercase, not tested on other sims
-            value = parse_spice_list("timing", "{0}{1}".format(vname.lower(), port)) 
-            #Check if any of the values fail to parse
-            if type(value)!=float: 
-                all_values_floats = False
-            values.append(value)
-            
-        #Apply Multiplier only if all values are floats. Let other check functions handle this error.
-        if all_values_floats:
-            return {values_names[i]:values[i]*mult for i in range(len(values))}
-        else:
-            return {values_names[i]:values[i] for i in range(len(values))}
-            
     def run_delay_simulation(self):
         """
         This tries to simulate a period and checks if the result works. If
@@ -427,32 +471,44 @@ class delay(simulation):
         #Too much duplicate code here. Try reducing
         for port in self.targ_read_ports:
             debug.info(2, "Check delay values for port {}".format(port))
-            delay_names = [mname for mname in self.delay_meas_names]
+            read_port_dict = {}
-            delays = self.parse_values(delay_names, port, 1e9) # scale delays to ns
+            #Get measurements from output file
-            if not self.check_valid_delays(delays):
+            for measure in self.read_meas_objs:
-                return (False,{})
+                read_port_dict[measure.name] = measure.retrieve_measure(port=port)
-            result[port].update(delays)
             
-            power_names = [mname for mname in self.power_meas_names if 'read' in mname]
+            #Check timing for read ports. Power is only checked if it was read correctly
-            powers = self.parse_values(power_names, port, 1e3) # scale power to mw
+            if not self.check_valid_delays(read_port_dict):
-            #Check that power parsing worked.
+                return (False,{})
-            for name, power in powers.items():
+            if not check_dict_values_is_float(read_port_dict):
-                if type(power)!=float:
+                debug.error("Failed to Measure Read Port Values:\n\t\t{0}".format(read_port_dict),1) #Printing the entire dict looks bad.    
-                    debug.error("Failed to Parse Power Values:\n\t\t{0}".format(powers),1) #Printing the entire dict looks bad.
+                
-            result[port].update(powers)
+            result[port].update(read_port_dict)
+            
+            bitline_delay_dict = self.evaluate_bitline_delay(port)
+            result[port].update(bitline_delay_dict)
             
         for port in self.targ_write_ports:
-            power_names = [mname for mname in self.power_meas_names if 'write' in mname]
+            write_port_dict = {}
-            powers = self.parse_values(power_names, port, 1e3) # scale power to mw
+            for measure in self.write_meas_objs:
-            #Check that power parsing worked.
+                write_port_dict[measure.name] = measure.retrieve_measure(port=port)
-            for name, power in powers.items():
+
-                if type(power)!=float:
+            if not check_dict_values_is_float(write_port_dict):
-                    debug.error("Failed to Parse Power Values:\n\t\t{0}".format(powers),1) #Printing the entire dict looks bad.
+                debug.error("Failed to Measure Write Port Values:\n\t\t{0}".format(write_port_dict),1) #Printing the entire dict looks bad. 
-            result[port].update(powers)
+            result[port].update(write_port_dict)
             
         # The delay is from the negative edge for our SRAM
         return (True,result)
 
+    def evaluate_bitline_delay(self, port):
+        """Parse and check the bitline delay. One of the measurements is expected to fail which warrants its own function."""
+        bl_delay_meas_dict = {}
+        values_added = 0 #For error checking
+        for measure in self.bitline_delay_objs:
+            bl_delay_val = measure.retrieve_measure(port=port)
+            if type(bl_delay_val) != float or 0 > bl_delay_val or bl_delay_val > self.period/2: #Only add if value is valid, do not error.
+                debug.error("Bitline delay measurement failed: half-period={}, {}={}".format(self.period/2, measure.name, bl_delay_val),1)
+            bl_delay_meas_dict[measure.name] = bl_delay_val
+        return bl_delay_meas_dict
         
     def run_power_simulation(self):
         """ 
@@ -478,13 +534,13 @@ class delay(simulation):
         #key=raw_input("press return to continue")
         return (leakage_power*1e3, trim_leakage_power*1e3)
     
-    def check_valid_delays(self, delay_dict):
+    def check_valid_delays(self, result_dict):
         """ Check if the measurements are defined and if they are valid. """
         #Hard coded names currently
-        delay_hl = delay_dict["delay_hl"]
+        delay_hl = result_dict["delay_hl"]
-        delay_lh = delay_dict["delay_lh"]
+        delay_lh = result_dict["delay_lh"]
-        slew_hl = delay_dict["slew_hl"]
+        slew_hl = result_dict["slew_hl"]
-        slew_lh = delay_dict["slew_lh"]
+        slew_lh = result_dict["slew_lh"]
         period_load_slew_str = "period {0} load {1} slew {2}".format(self.period,self.load, self.slew)
         
         # if it failed or the read was longer than a period
@@ -610,9 +666,22 @@ class delay(simulation):
         functions in this characterizer besides analyze."""
         self.probe_address = probe_address
         self.probe_data = probe_data
-
+        self.bitline_column = self.get_data_bit_column_number(probe_address, probe_data)
+        self.wordline_row = self.get_address_row_number(probe_address)
         self.prepare_netlist()
         
+    def get_data_bit_column_number(self, probe_address, probe_data):
+        """Calculates bitline column number of data bit under test using bit position and mux size"""
+        if self.sram.col_addr_size>0:
+            col_address = int(probe_address[0:self.sram.col_addr_size],2)
+        else:
+            col_address = 0
+        bl_column = int(self.sram.words_per_row*probe_data + col_address)
+        return bl_column 
+
+    def get_address_row_number(self, probe_address):
+        """Calculates wordline row number of data bit under test using address and column mux size"""
+        return int(probe_address[self.sram.col_addr_size:],2)
 
     def prepare_netlist(self):
         """ Prepare a trimmed netlist and regular netlist. """
@@ -645,6 +714,9 @@ class delay(simulation):
         char_sram_data = {}
         
         self.set_probe(probe_address, probe_data)
+        self.create_signal_names()
+        self.create_measurement_names()
+        self.create_measurement_objects()
         
         self.load=max(loads)
         self.slew=max(slews)
@@ -828,13 +900,14 @@ class delay(simulation):
         """
         if OPTS.num_rw_ports > 1 or OPTS.num_w_ports > 0 and OPTS.num_r_ports > 0:
             debug.warning("Analytical characterization results are not supported for multiport.")
-        
+        self.create_signal_names()
+        self.create_measurement_names()
         power = self.analytical_power(slews, loads)
         port_data = self.get_empty_measure_data_dict()
         for slew in slews:
             for load in loads:
                 self.set_load_slew(load,slew)
-                bank_delay = self.sram.analytical_delay(self.vdd_voltage, self.slew,self.load)
+                bank_delay = self.sram.analytical_delay(self.corner, self.slew,self.load)
                 for port in self.all_ports:
                     for mname in self.delay_meas_names+self.power_meas_names:
                         if "power" in mname:
@@ -845,9 +918,12 @@ class delay(simulation):
                             port_data[port][mname].append(bank_delay[port].slew/1e3)
                         else:
                             debug.error("Measurement name not recognized: {}".format(mname),1)
-        sram_data = { "min_period": 0, 
+        period_margin = 0.1
+        risefall_delay = bank_delay[self.read_ports[0]].delay/1e3
+        sram_data = { "min_period":risefall_delay*2*period_margin, 
                       "leakage_power": power.leakage}
-         
+        debug.info(2,"SRAM Data:\n{}".format(sram_data))                 
+        debug.info(2,"Port Data:\n{}".format(port_data)) 
         return (sram_data,port_data)
         
     
@@ -855,7 +931,7 @@ class delay(simulation):
         """Get the dynamic and leakage power from the SRAM"""
         #slews unused, only last load is used
         load = loads[-1]
-        power = self.sram.analytical_power(self.process, self.vdd_voltage, self.temperature, load) 
+        power = self.sram.analytical_power(self.corner, load) 
         #convert from nW to mW
         power.dynamic /= 1e6 
         power.leakage /= 1e6
@@ -890,7 +966,7 @@ class delay(simulation):
             
     def get_empty_measure_data_dict(self):
         """Make a dict of lists for each type of delay and power measurement to append results to"""
-        measure_names = self.delay_meas_names + self.power_meas_names
+        measure_names = self.delay_meas_names + self.power_meas_names + self.voltage_when_names + self.bitline_delay_names
         #Create list of dicts. List lengths is # of ports. Each dict maps the measurement names to lists.
         measure_data = [{mname:[] for mname in measure_names} for i in self.all_ports]
         return measure_data

compiler/characterizer/lib.py

@@ -83,9 +83,11 @@ class lib:
             (self.process, self.voltage, self.temperature) = self.corner
             self.lib = open(lib_name, "w")
             debug.info(1,"Writing to {0}".format(lib_name))
+            self.corner_name = lib_name.replace(self.out_dir,"").replace(".lib","")
             self.characterize()
             self.lib.close()
             self.parse_info(self.corner,lib_name)
+    
     def characterize(self):
         """ Characterize the current corner. """
 
@@ -325,7 +327,7 @@ class lib:
         self.lib.write("        }\n")
         
 
-        self.lib.write("        pin(DOUT{}){{\n".format(read_port))
+        self.lib.write("        pin(DOUT{0}[{1}:0]){{\n".format(read_port,self.sram.word_size-1))
         self.lib.write("        timing(){ \n")
         self.lib.write("            timing_sense : non_unate; \n")
         self.lib.write("            related_pin : \"clk{0}\"; \n".format(read_port))
@@ -358,7 +360,7 @@ class lib:
         self.lib.write("            address : ADDR{0}; \n".format(write_port))
         self.lib.write("            clocked_on  : clk{0}; \n".format(write_port))
         self.lib.write("        }\n") 
-        self.lib.write("        pin(DIN{}){{\n".format(write_port))
+        self.lib.write("        pin(DIN{0}[{1}:0]){{\n".format(write_port,self.sram.word_size-1))
         self.write_FF_setuphold(write_port)
         self.lib.write("        }\n") # pin  
         self.lib.write("    }\n") #bus
@@ -378,7 +380,7 @@ class lib:
         self.lib.write("        direction  : input; \n")
         self.lib.write("        capacitance : {0};  \n".format(tech.spice["dff_in_cap"]))
         self.lib.write("        max_transition       : {0};\n".format(self.slews[-1]))
-        self.lib.write("        pin(ADDR{})".format(port))
+        self.lib.write("        pin(ADDR{0}[{1}:0])".format(port,self.sram.addr_size-1))
         self.lib.write("{\n")
         
         self.write_FF_setuphold(port)
@@ -481,17 +483,16 @@ class lib:
         self.lib.write("        }\n")
         
     def compute_delay(self):
-        """ Do the analysis if we haven't characterized the SRAM yet """
+        """Compute SRAM delays for current corner"""
-        if not hasattr(self,"d"):
+        self.d = delay(self.sram, self.sp_file, self.corner)
-            self.d = delay(self.sram, self.sp_file, self.corner)
+        if self.use_model:
-            if self.use_model:
+            char_results = self.d.analytical_delay(self.slews,self.loads)
-                char_results = self.d.analytical_delay(self.slews,self.loads)
+            self.char_sram_results, self.char_port_results = char_results  
-                self.char_sram_results, self.char_port_results = char_results  
+        else:
-            else:
+            probe_address = "1" * self.sram.addr_size
-                probe_address = "1" * self.sram.addr_size
+            probe_data = self.sram.word_size - 1
-                probe_data = self.sram.word_size - 1
+            char_results = self.d.analyze(probe_address, probe_data, self.slews, self.loads)
-                char_results = self.d.analyze(probe_address, probe_data, self.slews, self.loads)
+            self.char_sram_results, self.char_port_results = char_results  
-                self.char_sram_results, self.char_port_results = char_results  
               
     def compute_setup_hold(self):
         """ Do the analysis if we haven't characterized a FF yet """
@@ -507,9 +508,11 @@ class lib:
     def parse_info(self,corner,lib_name):
         """ Copies important characterization data to datasheet.info to be added to datasheet """
         if OPTS.is_unit_test:
-            git_id = 'AAAAAAAAAAAAAAAAAAAA'
+            git_id = 'FFFFFFFFFFFFFFFFFFFF'
+
         else:
             with open(os.devnull, 'wb') as devnull:
+                # parses the mose recent git commit id - requres git is installed
                 proc = subprocess.Popen(['git','rev-parse','HEAD'], cwd=os.path.abspath(os.environ.get("OPENRAM_HOME")) + '/', stdout=subprocess.PIPE)
 
                 git_id = str(proc.stdout.read())
@@ -518,16 +521,17 @@ class lib:
                     git_id = git_id[2:-3] 
                 except:
                     pass
-
+                # check if git id is valid
                 if len(git_id) != 40:
                     debug.warning("Failed to retrieve git id")
                     git_id = 'Failed to retruieve'
 
         datasheet = open(OPTS.openram_temp +'/datasheet.info', 'a+')
         
-        current_time = datetime.datetime.now()
+        current_time = datetime.date.today()
-        datasheet.write("{0},{1},{2},{3},{4},{5},{6},{7},{8},{9},{10},{11},{12},{13},{14},{15},".format(
+        # write static information to be parser later
-                        "sram_{0}_{1}_{2}".format(OPTS.word_size, OPTS.num_words, OPTS.tech_name),
+        datasheet.write("{0},{1},{2},{3},{4},{5},{6},{7},{8},{9},{10},{11},{12},{13},{14},{15},{16},".format(
+                        OPTS.output_name,
                         OPTS.num_words,
                         OPTS.num_banks,
                         OPTS.num_rw_ports,
@@ -542,7 +546,8 @@ class lib:
                         lib_name,
                         OPTS.word_size,
                         git_id,
-                        current_time
+                        current_time,
+                        OPTS.analytical_delay
                         ))
 
         # information of checks
@@ -555,7 +560,9 @@ class lib:
             LVS = str(total_lvs_errors)
 
         datasheet.write("{0},{1},".format(DRC, LVS))
+        # write area
         datasheet.write(str(self.sram.width * self.sram.height)+',')
+        # write timing information for all ports
         for port in self.all_ports:
             #DIN timings
             if port in self.write_ports:
@@ -652,9 +659,45 @@ class lib:
 
                         ))
 
+        # write power information
+        for port in self.all_ports:
+            name = ''
+            read_write = ''
 
+            # write dynamic power usage
+            if port in self.read_ports:
+                web_name = " & !WEb{0}".format(port)
+                name = "!CSb{0} & clk{0}{1}".format(port, web_name)
+                read_write = 'Read'
+
+                datasheet.write("{0},{1},{2},{3},".format(
+                    "power",
+                    name,
+                    read_write,
+
+                    np.mean(self.char_port_results[port]["read1_power"] + self.char_port_results[port]["read0_power"])/2
+                    ))
+
+            if port in self.write_ports:
+                web_name = " & WEb{0}".format(port)
+                name = "!CSb{0} & !clk{0}{1}".format(port, web_name)
+                read_write = 'Write'
+
+                datasheet.write("{0},{1},{2},{3},".format(
+                        'power',
+                        name,
+                        read_write,
+                        np.mean(self.char_port_results[port]["write1_power"] + self.char_port_results[port]["write0_power"])/2
+
+                        ))
+
+        # write leakage power
+        control_str = 'CSb0'
+        for i in range(1, self.total_port_num):
+            control_str += ' & CSb{0}'.format(i)
+        
+        datasheet.write("{0},{1},{2},".format('leak', control_str, self.char_sram_results["leakage_power"]))
                 
 
         datasheet.write("END\n")
         datasheet.close()
-                

compiler/characterizer/logical_effort.py

@@ -10,7 +10,8 @@ class logical_effort():
     min_inv_cin = 1+beta
     pinv=parameter["min_inv_para_delay"]
     
-    def __init__(self, size, cin, cout, parasitic, out_is_rise=True):
+    def __init__(self, name, size, cin, cout, parasitic, out_is_rise=True):
+        self.name = name
         self.cin = cin
         self.cout = cout
         self.logical_effort = (self.cin/size)/logical_effort.min_inv_cin
@@ -19,7 +20,12 @@ class logical_effort():
         self.is_rise = out_is_rise
      
     def __str__(self):
-        return "g=" + str(self.logical_effort) + ", h=" + str(self.eletrical_effort) + ", p=" + str(self.parasitic_scale)+"*pinv, rise_delay="+str(self.is_rise)
+        return  "Name={}, g={}, h={}, p={}*pinv, rise_delay={}".format(self.name,
+                                                                       self.logical_effort,
+                                                                       self.eletrical_effort,
+                                                                       self.parasitic_scale,
+                                                                       self.is_rise
+                                                                       ) 
 
     def get_stage_effort(self):
         return  self.logical_effort*self.eletrical_effort
@@ -30,6 +36,10 @@ class logical_effort():
     def get_stage_delay(self, pinv):
         return self.get_stage_effort()+self.get_parasitic_delay(pinv)
 
+def calculate_delays(stage_effort_list, pinv):
+    """Convert stage effort objects to list of delay values"""
+    return [stage.get_stage_delay(pinv) for stage in stage_effort_list]
+    
 def calculate_relative_delay(stage_effort_list, pinv=parameter["min_inv_para_delay"]):
     """Calculates the total delay of a given delay path made of a list of logical effort objects."""
     total_rise_delay, total_fall_delay = calculate_relative_rise_fall_delays(stage_effort_list, pinv)
@@ -40,7 +50,7 @@ def calculate_relative_rise_fall_delays(stage_effort_list, pinv=parameter["min_i
     debug.info(2, "Calculating rise/fall relative delays")
     total_rise_delay, total_fall_delay = 0,0
     for stage in stage_effort_list:
-        debug.info(3, stage)
+        debug.info(2, stage)
         if stage.is_rise:
             total_rise_delay += stage.get_stage_delay(pinv)
         else:

compiler/characterizer/measurements.py

@@ -0,0 +1,159 @@
+import debug
+from tech import drc, parameter, spice
+from abc import ABC, abstractmethod
+from .stimuli import *
+from .charutils import *
+
+class spice_measurement(ABC):
+    """Base class for spice stimulus measurements."""
+    def __init__(self, measure_name, measure_scale=None):
+        #Names must be unique for correct spice simulation, but not enforced here.
+        self.name = measure_name
+        self.measure_scale = measure_scale
+        #Some meta values used externally. variables are added here for consistency accross the objects
+        self.meta_str = None 
+        self.meta_add_delay = False
+    @abstractmethod
+    def get_measure_function(self):
+        return None    
+        
+    @abstractmethod
+    def get_measure_values(self):
+        return None
+        
+    def write_measure(self, stim_obj, input_tuple):
+        measure_func = self.get_measure_function()
+        if measure_func == None:
+            debug.error("Did not set measure function",1)
+        measure_vals = self.get_measure_values(*input_tuple)
+        measure_func(stim_obj, *measure_vals)
+    
+    def retrieve_measure(self, port=""):
+        value = parse_spice_list("timing", "{0}{1}".format(self.name.lower(), port)) 
+        if type(value)!=float or self.measure_scale == None: 
+            return value
+        else:
+            return value*self.measure_scale
+           
+class delay_measure(spice_measurement):
+    """Generates a spice measurement for the delay of 50%-to-50% points of two signals."""
+    
+    def __init__(self, measure_name, trig_name, targ_name,  trig_dir_str, targ_dir_str, trig_vdd=0.5, targ_vdd=0.5, measure_scale=None):
+        spice_measurement.__init__(self, measure_name, measure_scale)
+        self.set_meas_constants(trig_name, targ_name, trig_dir_str, targ_dir_str, trig_vdd, targ_vdd)
+    
+    def get_measure_function(self):
+        return stimuli.gen_meas_delay
+    
+    def set_meas_constants(self, trig_name, targ_name, trig_dir_str, targ_dir_str, trig_vdd, targ_vdd):
+        """Set the constants for this measurement: signal names, directions, and trigger scales"""
+        self.trig_dir_str = trig_dir_str
+        self.targ_dir_str = targ_dir_str
+        
+        self.trig_val_of_vdd = trig_vdd 
+        self.targ_val_of_vdd = targ_vdd
+        
+        self.trig_name_no_port = trig_name
+        self.targ_name_no_port = targ_name
+        
+        #Time delays and ports are variant and needed as inputs when writing the measurement
+        
+    def get_measure_values(self, trig_td, targ_td, vdd_voltage, port=None):    
+        """Constructs inputs to stimulus measurement function. Variant values are inputs here."""
+        trig_val = self.trig_val_of_vdd * vdd_voltage
+        targ_val = self.targ_val_of_vdd * vdd_voltage
+        
+        if port != None:
+            #For dictionary indexing reasons, the name is formatted differently than the signals
+            meas_name = "{}{}".format(self.name, port)
+            trig_name = self.trig_name_no_port.format(port)
+            targ_name = self.targ_name_no_port.format(port)
+        else:
+            meas_name = self.name
+            trig_name = self.trig_name_no_port
+            targ_name = self.targ_name_no_port
+
+        return (meas_name,trig_name,targ_name,trig_val,targ_val,self.trig_dir_str,self.targ_dir_str,trig_td,targ_td)            
+
+class slew_measure(delay_measure):        
+    
+    def __init__(self, measure_name, signal_name, slew_dir_str, measure_scale=None):
+        spice_measurement.__init__(self, measure_name, measure_scale)
+        self.set_meas_constants(signal_name, slew_dir_str)
+    
+    def set_meas_constants(self, signal_name, slew_dir_str):
+        """Set the values needed to generate a Spice measurement statement based on the name of the measurement."""
+        self.trig_dir_str = slew_dir_str
+        self.targ_dir_str = slew_dir_str
+        
+        if slew_dir_str == "RISE":
+            self.trig_val_of_vdd = 0.1 
+            self.targ_val_of_vdd = 0.9
+        elif slew_dir_str == "FALL":
+            self.trig_val_of_vdd = 0.9 
+            self.targ_val_of_vdd = 0.1
+        else:
+            debug.error("Unrecognised slew measurement direction={}".format(slew_dir_str),1)
+        
+        self.trig_name_no_port = signal_name
+        self.targ_name_no_port = signal_name
+        
+        #Time delays and ports are variant and needed as inputs when writing the measurement 
+ 
+class power_measure(spice_measurement):
+    """Generates a spice measurement for the average power between two time points."""
+    
+    def __init__(self, measure_name, power_type="", measure_scale=None):
+        spice_measurement.__init__(self, measure_name, measure_scale)
+        self.set_meas_constants(power_type)
+    
+    def get_measure_function(self):
+        return stimuli.gen_meas_power
+    
+    def set_meas_constants(self, power_type):
+        """Sets values useful for power simulations. This value is only meta related to the lib file (rise/fall)"""
+        #Not needed for power simulation
+        self.power_type = power_type #Expected to be  "RISE"/"FALL"
+        
+    def get_measure_values(self, t_initial, t_final, port=None):    
+        """Constructs inputs to stimulus measurement function. Variant values are inputs here."""
+        if port != None:
+            meas_name = "{}{}".format(self.name, port)
+        else:
+            meas_name = self.name
+        return (meas_name,t_initial,t_final)  
+        
+class voltage_when_measure(spice_measurement):        
+    """Generates a spice measurement to measure the voltage of a signal based on the voltage of another."""
+    
+    def __init__(self, measure_name, trig_name, targ_name, trig_dir_str, trig_vdd, measure_scale=None):
+        spice_measurement.__init__(self, measure_name, measure_scale)
+        self.set_meas_constants(trig_name, targ_name, trig_dir_str, trig_vdd)
+    
+    def get_measure_function(self):
+        return stimuli.gen_meas_find_voltage
+    
+    def set_meas_constants(self, trig_name, targ_name, trig_dir_str, trig_vdd):
+        """Sets values useful for power simulations. This value is only meta related to the lib file (rise/fall)"""
+        self.trig_dir_str = trig_dir_str
+        self.trig_val_of_vdd = trig_vdd 
+  
+        self.trig_name_no_port = trig_name
+        self.targ_name_no_port = targ_name
+        
+    def get_measure_values(self, trig_td, vdd_voltage, port=None):    
+        """Constructs inputs to stimulus measurement function. Variant values are inputs here."""
+        
+        if port != None:
+            #For dictionary indexing reasons, the name is formatted differently than the signals
+            meas_name = "{}{}".format(self.name, port)
+            trig_name = self.trig_name_no_port.format(port)
+            targ_name = self.targ_name_no_port.format(port)
+        else:
+            meas_name = self.name
+            trig_name = self.trig_name_no_port
+            targ_name = self.targ_name_no_port
+
+        trig_voltage = self.trig_val_of_vdd*vdd_voltage
+            
+        return (meas_name,trig_name,targ_name,trig_voltage,self.trig_dir_str,trig_td)

compiler/characterizer/model_check.py

@@ -0,0 +1,348 @@
+import sys,re,shutil
+import debug
+import tech
+import math
+from .stimuli import *
+from .trim_spice import *
+from .charutils import *
+import utils
+from globals import OPTS
+from .delay import delay
+from .measurements import *
+
+class model_check(delay):
+    """Functions to test for the worst case delay in a target SRAM
+
+    The current worst case determines a feasible period for the SRAM then tests
+    several bits and record the delay and differences between the bits.
+
+    """
+
+    def __init__(self, sram, spfile, corner):
+        delay.__init__(self,sram,spfile,corner)
+        self.period = tech.spice["feasible_period"]
+        self.create_data_names()
+        
+    def create_data_names(self):
+        self.wl_meas_name, self.wl_model_name = "wl_measures", "wl_model"
+        self.sae_meas_name, self.sae_model_name = "sae_measures", "sae_model"
+        self.wl_slew_name, self.sae_slew_name = "wl_slews", "sae_slews"
+        
+    def create_measurement_names(self):
+        """Create measurement names. The names themselves currently define the type of measurement"""
+        #Create delay measurement names
+        wl_en_driver_delay_names = ["delay_wl_en_dvr_{}".format(stage) for stage in range(1,self.get_num_wl_en_driver_stages())]
+        wl_driver_delay_names = ["delay_wl_dvr_{}".format(stage) for stage in range(1,self.get_num_wl_driver_stages())]
+        sen_driver_delay_names = ["delay_sen_dvr_{}".format(stage) for stage in range(1,self.get_num_sen_driver_stages())]
+        dc_delay_names = ["delay_delay_chain_stage_{}".format(stage) for stage in range(1,self.get_num_delay_stages()+1)]
+        self.wl_delay_meas_names = wl_en_driver_delay_names+["delay_wl_en", "delay_wl_bar"]+wl_driver_delay_names+["delay_wl"]
+        self.rbl_delay_meas_names = ["delay_gated_clk_nand", "delay_delay_chain_in"]+dc_delay_names
+        self.sae_delay_meas_names = ["delay_pre_sen"]+sen_driver_delay_names+["delay_sen"]
+
+        self.delay_chain_indices = (len(self.rbl_delay_meas_names)-len(dc_delay_names), len(self.rbl_delay_meas_names))
+        #Create slew measurement names
+        wl_en_driver_slew_names = ["slew_wl_en_dvr_{}".format(stage) for stage in range(1,self.get_num_wl_en_driver_stages())]
+        wl_driver_slew_names = ["slew_wl_dvr_{}".format(stage) for stage in range(1,self.get_num_wl_driver_stages())]
+        sen_driver_slew_names = ["slew_sen_dvr_{}".format(stage) for stage in range(1,self.get_num_sen_driver_stages())]
+        dc_slew_names = ["slew_delay_chain_stage_{}".format(stage) for stage in range(1,self.get_num_delay_stages()+1)]
+        self.wl_slew_meas_names = ["slew_wl_gated_clk_bar"]+wl_en_driver_slew_names+["slew_wl_en", "slew_wl_bar"]+wl_driver_slew_names+["slew_wl"]
+        self.rbl_slew_meas_names = ["slew_rbl_gated_clk_bar","slew_gated_clk_nand", "slew_delay_chain_in"]+dc_slew_names
+        self.sae_slew_meas_names = ["slew_replica_bl0", "slew_pre_sen"]+sen_driver_slew_names+["slew_sen"]
+       
+    def create_signal_names(self):
+        """Creates list of the signal names used in the spice file along the wl and sen paths.
+           Names are re-harded coded here; i.e. the names are hardcoded in most of OpenRAM and are
+           replicated here.
+        """
+        delay.create_signal_names(self)
+        #Signal names are all hardcoded, need to update to make it work for probe address and different configurations.
+        wl_en_driver_signals = ["Xsram.Xcontrol0.Xbuf_wl_en.Zb{}_int".format(stage) for stage in range(1,self.get_num_wl_en_driver_stages())]
+        wl_driver_signals = ["Xsram.Xbank0.Xwordline_driver0.Xwl_driver_inv{}.Zb{}_int".format(self.wordline_row, stage) for stage in range(1,self.get_num_wl_driver_stages())]
+        sen_driver_signals = ["Xsram.Xcontrol0.Xbuf_s_en.Zb{}_int".format(stage) for stage in range(1,self.get_num_sen_driver_stages())]
+        delay_chain_signal_names = ["Xsram.Xcontrol0.Xreplica_bitline.Xdelay_chain.dout_{}".format(stage) for stage in range(1,self.get_num_delay_stages())] 
+        
+        self.wl_signal_names = ["Xsram.Xcontrol0.gated_clk_bar"]+\
+                               wl_en_driver_signals+\
+                               ["Xsram.wl_en0", "Xsram.Xbank0.Xwordline_driver0.wl_bar_{}".format(self.wordline_row)]+\
+                               wl_driver_signals+\
+                               ["Xsram.Xbank0.wl_{}".format(self.wordline_row)]
+        pre_delay_chain_names = ["Xsram.Xcontrol0.gated_clk_bar", "Xsram.Xcontrol0.Xand2_rbl_in.zb_int", "Xsram.Xcontrol0.rbl_in"]
+        self.rbl_en_signal_names = pre_delay_chain_names+\
+                                   delay_chain_signal_names+\
+                                   ["Xsram.Xcontrol0.Xreplica_bitline.delayed_en"]
+        self.sae_signal_names = ["Xsram.Xcontrol0.Xreplica_bitline.bl0_0", "Xsram.Xcontrol0.pre_s_en"]+\
+                                sen_driver_signals+\
+                                ["Xsram.s_en0"]
+    
+    def create_measurement_objects(self):
+        """Create the measurements used for read and write ports"""
+        self.create_wordline_measurement_objects()
+        self.create_sae_measurement_objects()
+        self.all_measures = self.wl_meas_objs+self.sae_meas_objs
+    
+    def create_wordline_measurement_objects(self):
+        """Create the measurements to measure the wordline path from the gated_clk_bar signal"""
+        self.wl_meas_objs = []
+        trig_dir = "RISE"
+        targ_dir = "FALL"
+        
+        for i in range(1, len(self.wl_signal_names)):
+            self.wl_meas_objs.append(delay_measure(self.wl_delay_meas_names[i-1], 
+                                                   self.wl_signal_names[i-1], 
+                                                   self.wl_signal_names[i], 
+                                                   trig_dir, 
+                                                   targ_dir, 
+                                                   measure_scale=1e9))
+            self.wl_meas_objs.append(slew_measure(self.wl_slew_meas_names[i-1], 
+                                                  self.wl_signal_names[i-1], 
+                                                  trig_dir, 
+                                                  measure_scale=1e9))
+            temp_dir = trig_dir
+            trig_dir = targ_dir
+            targ_dir = temp_dir
+        self.wl_meas_objs.append(slew_measure(self.wl_slew_meas_names[-1], self.wl_signal_names[-1], trig_dir, measure_scale=1e9))
+        
+    def create_sae_measurement_objects(self):
+        """Create the measurements to measure the sense amp enable path from the gated_clk_bar signal. The RBL splits this path into two."""
+        
+        self.sae_meas_objs = []
+        trig_dir = "RISE"
+        targ_dir = "FALL"
+        #Add measurements from gated_clk_bar to RBL
+        for i in range(1, len(self.rbl_en_signal_names)):
+            self.sae_meas_objs.append(delay_measure(self.rbl_delay_meas_names[i-1], 
+                                                    self.rbl_en_signal_names[i-1], 
+                                                    self.rbl_en_signal_names[i], 
+                                                    trig_dir, 
+                                                    targ_dir, 
+                                                    measure_scale=1e9))
+            self.sae_meas_objs.append(slew_measure(self.rbl_slew_meas_names[i-1], 
+                                                   self.rbl_en_signal_names[i-1], 
+                                                   trig_dir, 
+                                                   measure_scale=1e9))
+            temp_dir = trig_dir
+            trig_dir = targ_dir
+            targ_dir = temp_dir
+        self.sae_meas_objs.append(slew_measure(self.rbl_slew_meas_names[-1], 
+                                               self.rbl_en_signal_names[-1], 
+                                               trig_dir, 
+                                               measure_scale=1e9))
+        
+        #Add measurements from rbl_out to sae. Trigger directions do not invert from previous stage due to RBL.
+        trig_dir = "FALL"
+        targ_dir = "RISE"
+        #Add measurements from gated_clk_bar to RBL
+        for i in range(1, len(self.sae_signal_names)):
+            self.sae_meas_objs.append(delay_measure(self.sae_delay_meas_names[i-1], 
+                                                    self.sae_signal_names[i-1], 
+                                                    self.sae_signal_names[i], 
+                                                    trig_dir, 
+                                                    targ_dir, 
+                                                    measure_scale=1e9))
+            self.sae_meas_objs.append(slew_measure(self.sae_slew_meas_names[i-1], 
+                                                   self.sae_signal_names[i-1], 
+                                                   trig_dir, 
+                                                   measure_scale=1e9))
+            temp_dir = trig_dir
+            trig_dir = targ_dir
+            targ_dir = temp_dir
+        self.sae_meas_objs.append(slew_measure(self.sae_slew_meas_names[-1], 
+                                               self.sae_signal_names[-1], 
+                                               trig_dir, 
+                                               measure_scale=1e9))
+        
+    def write_delay_measures(self):
+        """
+        Write the measure statements to quantify the delay and power results for all targeted ports.
+        """
+        self.sf.write("\n* Measure statements for delay and power\n")
+
+        # Output some comments to aid where cycles start and what is happening
+        for comment in self.cycle_comments:
+            self.sf.write("* {}\n".format(comment))
+        
+        for read_port in self.targ_read_ports:
+           self.write_measures_read_port(read_port)
+
+    def get_delay_measure_variants(self, port, measure_obj):
+        """Get the measurement values that can either vary from simulation to simulation (vdd, address) 
+           or port to port (time delays)"""
+        #Return value is intended to match the delay measure format:  trig_td, targ_td, vdd, port
+        #Assuming only read 0 for now
+        if not (type(measure_obj) is delay_measure or type(measure_obj) is slew_measure):
+            debug.error("Measurement not recognized by the model checker.",1)
+        meas_cycle_delay = self.cycle_times[self.measure_cycles[port]["read0"]] + self.period/2
+        return (meas_cycle_delay, meas_cycle_delay, self.vdd_voltage, port)
+    
+    def write_measures_read_port(self, port):
+        """
+        Write the measure statements for all nodes along the wordline path.
+        """
+        # add measure statements for delays/slews
+        for measure in self.all_measures:
+            measure_variant_inp_tuple = self.get_delay_measure_variants(port, measure)
+            measure.write_measure(self.stim, measure_variant_inp_tuple)
+    
+    def get_measurement_values(self, meas_objs, port):
+        """Gets the delays and slews from a specified port from the spice output file and returns them as lists."""
+        delay_meas_list = []  
+        slew_meas_list = [] 
+        for measure in meas_objs:
+            measure_value = measure.retrieve_measure(port=port)
+            if type(measure_value) != float:
+                debug.error("Failed to Measure Value:\n\t\t{}={}".format(measure.name, measure_value),1) 
+            if type(measure) is delay_measure:
+                delay_meas_list.append(measure_value)
+            elif type(measure)is slew_measure:
+                slew_meas_list.append(measure_value)
+            else:
+                debug.error("Measurement object not recognized.",1)
+        return delay_meas_list, slew_meas_list
+        
+    def run_delay_simulation(self):
+        """
+        This tries to simulate a period and checks if the result works. If
+        so, it returns True and the delays, slews, and powers.  It
+        works on the trimmed netlist by default, so powers do not
+        include leakage of all cells.
+        """
+        #Sanity Check
+        debug.check(self.period > 0, "Target simulation period non-positive") 
+        
+        wl_delay_result = [[] for i in self.all_ports]
+        wl_slew_result = [[] for i in self.all_ports]
+        sae_delay_result = [[] for i in self.all_ports]
+        sae_slew_result = [[] for i in self.all_ports]
+        # Checking from not data_value to data_value
+        self.write_delay_stimulus()
+
+        self.stim.run_sim() #running sim prodoces spice output file.
+        
+        #Retrieve the results from the output file
+        for port in self.targ_read_ports:  
+            #Parse and check the voltage measurements
+            wl_delay_result[port], wl_slew_result[port] = self.get_measurement_values(self.wl_meas_objs, port)
+            sae_delay_result[port], sae_slew_result[port] = self.get_measurement_values(self.sae_meas_objs, port)
+        return (True,wl_delay_result, sae_delay_result, wl_slew_result, sae_slew_result)
+  
+    def get_model_delays(self, port):
+        """Get model delays based on port. Currently assumes single RW port."""
+        return self.sram.control_logic_rw.get_wl_sen_delays()
+     
+    def get_num_delay_stages(self):
+        """Gets the number of stages in the delay chain from the control logic"""
+        return len(self.sram.control_logic_rw.replica_bitline.delay_fanout_list)
+    
+    def get_num_delay_fanout_list(self):
+        """Gets the number of stages in the delay chain from the control logic"""
+        return self.sram.control_logic_rw.replica_bitline.delay_fanout_list
+    
+    def get_num_delay_stage_fanout(self):
+        """Gets fanout in each stage in the delay chain. Assumes each stage is the same"""
+        return self.sram.control_logic_rw.replica_bitline.delay_fanout_list[0]
+    
+    def get_num_wl_en_driver_stages(self):
+        """Gets the number of stages in the wl_en driver from the control logic"""
+        return self.sram.control_logic_rw.wl_en_driver.num_stages
+        
+    def get_num_sen_driver_stages(self):
+        """Gets the number of stages in the sen driver from the control logic"""
+        return self.sram.control_logic_rw.s_en_driver.num_stages
+     
+    def get_num_wl_driver_stages(self):
+        """Gets the number of stages in the wordline driver from the control logic"""
+        return self.sram.bank.wordline_driver.inv.num_stages 
+     
+    def scale_delays(self, delay_list):
+        """Takes in a list of measured delays and convert it to simple units to easily compare to model values."""
+        converted_values = []
+        #Calculate average
+        total = 0
+        for meas_value in delay_list:
+            total+=meas_value
+        average = total/len(delay_list)
+        
+        #Convert values
+        for meas_value in delay_list:
+            converted_values.append(meas_value/average)
+        return converted_values
+    
+    def min_max_normalization(self, value_list):
+        """Re-scales input values on a range from 0-1 where min(list)=0, max(list)=1"""
+        scaled_values = []
+        min_max_diff = max(value_list) - min(value_list)
+        average = sum(value_list)/len(value_list)
+        for value in value_list:
+            scaled_values.append((value-average)/(min_max_diff))
+        return scaled_values
+        
+    def calculate_error_l2_norm(self, list_a, list_b):    
+        """Calculates error between two lists using the l2 norm"""
+        error_list = []
+        for val_a, val_b in zip(list_a, list_b):
+            error_list.append((val_a-val_b)**2)
+        return error_list
+    
+    def compare_measured_and_model(self, measured_vals, model_vals):
+        """First scales both inputs into similar ranges and then compares the error between both."""
+        scaled_meas = self.min_max_normalization(measured_vals)
+        debug.info(1, "Scaled measurements:\n{}".format(scaled_meas))
+        scaled_model = self.min_max_normalization(model_vals)
+        debug.info(1, "Scaled model:\n{}".format(scaled_model))
+        errors = self.calculate_error_l2_norm(scaled_meas, scaled_model)
+        debug.info(1, "Errors:\n{}\n".format(errors))
+        
+    def analyze(self, probe_address, probe_data, slews, loads):
+        """Measures entire delay path along the wordline and sense amp enable and compare it to the model delays."""
+        self.load=max(loads)
+        self.slew=max(slews)
+        self.set_probe(probe_address, probe_data)
+        self.create_signal_names()
+        self.create_measurement_names()
+        self.create_measurement_objects()
+        data_dict = {}
+        
+        read_port = self.read_ports[0] #only test the first read port
+        self.targ_read_ports = [read_port]
+        self.targ_write_ports = [self.write_ports[0]]
+        debug.info(1,"Model test: corner {}".format(self.corner))
+        (success, wl_delays, sae_delays, wl_slews, sae_slews)=self.run_delay_simulation()
+        debug.check(success, "Model measurements Failed: period={}".format(self.period))
+        wl_model_delays, sae_model_delays = self.get_model_delays(read_port)
+        
+        debug.info(1,"Measured Wordline delays (ns):\n\t {}".format(wl_delays[read_port]))
+        debug.info(1,"Wordline model delays:\n\t {}".format(wl_model_delays))
+        debug.info(1,"Measured Wordline slews:\n\t {}".format(wl_slews[read_port]))
+        debug.info(1,"Measured SAE delays (ns):\n\t {}".format(sae_delays[read_port]))
+        debug.info(1,"SAE model delays:\n\t {}".format(sae_model_delays))
+        debug.info(1,"Measured SAE slews:\n\t {}".format(sae_slews[read_port]))
+        
+        data_dict[self.wl_meas_name] = wl_delays[read_port]
+        data_dict[self.wl_model_name] = wl_model_delays
+        data_dict[self.sae_meas_name] = sae_delays[read_port]
+        data_dict[self.sae_model_name] = sae_model_delays
+        data_dict[self.wl_slew_name] = wl_slews[read_port]
+        data_dict[self.sae_slew_name] = sae_slews[read_port]
+        
+        #Some evaluations of the model and measured values
+        # debug.info(1, "Comparing wordline measurements and model.")
+        # self.compare_measured_and_model(wl_delays[read_port], wl_model_delays)
+        # debug.info(1, "Comparing SAE measurements and model")
+        # self.compare_measured_and_model(sae_delays[read_port], sae_model_delays)
+        
+        return data_dict
+
+    def get_all_signal_names(self):
+        """Returns all signals names as a dict indexed by hardcoded names. Useful for writing the head of the CSV."""
+        name_dict = {}
+        #Signal names are more descriptive than the measurement names, first value trimmed to match size of measurements names.
+        name_dict[self.wl_meas_name] = self.wl_signal_names[1:]
+        name_dict[self.wl_model_name] = name_dict["wl_measures"] #model uses same names as measured.
+        name_dict[self.sae_meas_name] = self.rbl_en_signal_names[1:]+self.sae_signal_names[1:]
+        name_dict[self.sae_model_name] = name_dict["sae_measures"]
+        name_dict[self.wl_slew_name] = self.wl_slew_meas_names
+        name_dict[self.sae_slew_name] = self.rbl_slew_meas_names+self.sae_slew_meas_names
+        return name_dict
+    
+    
+  

compiler/characterizer/stimuli.py

@@ -258,14 +258,15 @@ class stimuli():
            
         # UIC is needed for ngspice to converge
         self.sf.write(".TRAN {0}p {1}n UIC\n".format(timestep,end_time))
+        self.sf.write(".TEMP {}\n".format(self.temperature))
         if OPTS.spice_name == "ngspice":
             # ngspice sometimes has convergence problems if not using gear method
             # which is more accurate, but slower than the default trapezoid method
             # Do not remove this or it may not converge due to some "pa_00" nodes
             # unless you figure out what these are.
-            self.sf.write(".OPTIONS POST=1 RELTOL={0} PROBE method=gear TEMP={1}\n".format(reltol,self.temperature))
+            self.sf.write(".OPTIONS POST=1 RELTOL={0} PROBE method=gear\n".format(reltol))
         else:
-            self.sf.write(".OPTIONS POST=1 RUNLVL={0} PROBE TEMP={1}\n".format(runlvl,self.temperature))
+            self.sf.write(".OPTIONS POST=1 RUNLVL={0} PROBE\n".format(runlvl))
 
         # create plots for all signals
         self.sf.write("* probe is used for hspice/xa, while plot is used in ngspice\n")

compiler/datasheet/assets/datasheet.css

@@ -19,8 +19,8 @@
     padding-top: 11px;
     padding-bottom: 11px;
     text-align: left;
-    background-color: 	#004184;
+    background-color: 	#003C6C;
-    color: #F1B521;
+    color: #FDC700;
 }
 
 

compiler/datasheet/datasheet.py

@@ -28,17 +28,17 @@ class datasheet():
 #            for item in self.description:
 #                self.html += item + ','
             self.html += '-->'
-
+        # Add vlsida logo
         vlsi_logo = 0
         with open(os.path.abspath(os.environ.get("OPENRAM_HOME")) + '/datasheet/assets/vlsi_logo.png', "rb") as image_file:
             vlsi_logo = base64.b64encode(image_file.read())
 
+        # Add openram logo
         openram_logo = 0
-        with open(os.path.abspath(os.environ.get("OPENRAM_HOME")) + '/datasheet/assets/openram_logo_placeholder.png', "rb") as image_file:
+        with open(os.path.abspath(os.environ.get("OPENRAM_HOME")) + '/datasheet/assets/OpenRAM_logo.png', "rb") as image_file:
             openram_logo = base64.b64encode(image_file.read())
 
-        self.html += '<a href="https://vlsida.soe.ucsc.edu/"><img src="data:image/png;base64,{0}" alt="VLSIDA"></a>'.format(str(vlsi_logo)[
+        self.html += '<a href="https://vlsida.soe.ucsc.edu/"><img src="data:image/png;base64,{0}" alt="VLSIDA"></a><a href ="https://github.com/VLSIDA/OpenRAM"><img src ="data:image/png;base64,{1}" alt = "OpenRAM"></a>'.format(str(vlsi_logo)[2:-1], str(openram_logo)[2:-1])
-                                                                                                                            2:-1])
 
         self.html += '<p style="font-size: 18px;font-family: Trebuchet MS, Arial, Helvetica, sans-serif;">' + \
             self.name + '.html' + '</p>'
@@ -49,23 +49,30 @@ class datasheet():
             'LVS errors: ' + str(self.LVS) + '</p>'
         self.html += '<p style="font-size: 18px;font-family: Trebuchet MS, Arial, Helvetica, sans-serif;">' + \
             'Git commit id: ' + str(self.git_id) + '</p>'
-
+        # print port table
         self.html += '<p style="font-size: 26px;font-family: Trebuchet MS, Arial, Helvetica, sans-serif;">Ports and Configuration</p>'
-#        self.html += in_out(self.io,table_id='data').__html__().replace('&lt;','<').replace('&#34;','"').replace('&gt;',">")
         self.html += self.io_table.to_html()
 
+        # print operating condidition information
         self.html += '<p style="font-size: 26px;font-family: Trebuchet MS, Arial, Helvetica, sans-serif;">Operating Conditions</p>'
-#        self.html += operating_conditions(self.operating,table_id='data').__html__()
         self.html += self.operating_table.to_html()
 
-        self.html += '<p style="font-size: 26px;font-family: Trebuchet MS, Arial, Helvetica, sans-serif;">Timing and Current Data</p>'
+        # check if analytical model is being used
-#        self.html += timing_and_current_data(self.timing,table_id='data').__html__()
+        self.html += '<p style="font-size: 26px;font-family: Trebuchet MS, Arial, Helvetica, sans-serif;">Timing Data</p>'
+        model = ''
+        if self.ANALYTICAL_MODEL == 'True':
+            model = "analytical model: results may not be precise"
+        else:
+            model = "spice characterizer"
+        # display timing data
+        self.html += '<p style="font-size: 26px;font-family: Trebuchet MS, Arial, Helvetica, sans-serif;">Using '+model+'</p>'
         self.html += self.timing_table.to_html()
-
+        # display power data
+        self.html += '<p style="font-size: 26px;font-family: Trebuchet MS, Arial, Helvetica, sans-serif;">Power Data</p>'
+        self.html += self.power_table.to_html()
+        # display corner information
         self.html += '<p style="font-size: 26px;font-family: Trebuchet MS, Arial, Helvetica, sans-serif;">Characterization Corners</p>'
-#        self.html += characterization_corners(self.corners,table_id='data').__html__()
         self.html += self.corners_table.to_html()
-
+        # display deliverables table
         self.html += '<p style="font-size: 26px;font-family: Trebuchet MS, Arial, Helvetica, sans-serif;">Deliverables</p>'
-#        self.html += deliverables(self.dlv,table_id='data').__html__().replace('&lt;','<').replace('&#34;','"').replace('&gt;',">")
         self.html += self.dlv_table.to_html()

compiler/datasheet/datasheet_gen.py

@@ -4,7 +4,6 @@ This is a script to load data from the characterization and layout processes int
 a web friendly html datasheet.
 """
 # TODO:
-# include power
 # Diagram generation
 # Improve css
 
@@ -16,19 +15,34 @@ import csv
 import datasheet
 import table_gen
 
-
+# def process_name(corner):
-def process_name(corner):
+# """
-    """
+# Expands the names of the characterization corner types into something human friendly
-    Expands the names of the characterization corner types into something human friendly
+# """
-    """
+# if corner == "TS":
-    if corner == "TT":
+# return "Typical - Slow"
-        return "Typical - Typical"
+# if corner == "TT":
-    if corner == "SS":
+# return "Typical - Typical"
-        return "Slow - Slow"
+# if corner == "TF":
-    if corner == "FF":
+# return "Typical - Fast"
-        return "Fast - Fast"
+#
-    else:
+# if corner == "SS":
-        return "custom"
+# return "Slow - Slow"
+# if corner == "ST":
+# return "Slow - Typical"
+# if corner == "SF":
+# return "Slow - Fast"
+#
+# if corner == "FS":
+# return "Fast - Slow"
+# if corner == "FT":
+# return "Fast - Typical"
+# if corner == "FF":
+# return "Fast - Fast"
+#
+# else:
+# return "custom"
+#
 
 
 def parse_characterizer_csv(f, pages):
@@ -92,6 +106,9 @@ def parse_characterizer_csv(f, pages):
             DATETIME = row[col]
             col += 1
           
+            ANALYTICAL_MODEL = row[col]
+            col += 1
+
             DRC = row[col]
             col += 1
 
@@ -100,6 +117,7 @@ def parse_characterizer_csv(f, pages):
  
             AREA = row[col]
             col += 1
+
             for sheet in pages:
 
                 if sheet.name == NAME:
@@ -133,7 +151,7 @@ def parse_characterizer_csv(f, pages):
                                         1000/float(MIN_PERIOD)))
                             except Exception:
                                 pass
-
+                    # check current .lib file produces the slowest timing results
                     while(True):
                         col_start = col
                         if(row[col].startswith('DIN')):
@@ -147,31 +165,31 @@ def parse_characterizer_csv(f, pages):
                                         if float(row[col+2]) > float(item[2]):
                                             item[2] = row[col+2]
 
-                                        col += 2
+                                    col += 2
 
-                                    elif item[0].endswith('setup falling'):
+                                    if item[0].endswith('setup falling'):
                                         if float(row[col+1]) < float(item[1]):
                                             item[1] = row[col+1]
                                         if float(row[col+2]) > float(item[2]):
                                             item[2] = row[col+2]
 
-                                        col += 2
+                                    col += 2
 
-                                    elif item[0].endswith('hold rising'):
+                                    if item[0].endswith('hold rising'):
                                         if float(row[col+1]) < float(item[1]):
                                             item[1] = row[col+1]
                                         if float(row[col+2]) > float(item[2]):
                                             item[2] = row[col+2]
 
-                                        col += 2
+                                    col += 2
 
-                                    elif item[0].endswith('hold falling'):
+                                    if item[0].endswith('hold falling'):
                                         if float(row[col+1]) < float(item[1]):
                                             item[1] = row[col+1]
                                         if float(row[col+2]) > float(item[2]):
                                             item[2] = row[col+2]
 
-                                        col += 2
+                                    col += 2
 
                             col += 1
 
@@ -186,31 +204,31 @@ def parse_characterizer_csv(f, pages):
                                         if float(row[col+2]) > float(item[2]):
                                             item[2] = row[col+2]
 
-                                        col += 2
+                                    col += 2
 
-                                    elif item[0].endswith('cell fall'):
+                                    if item[0].endswith('cell fall'):
                                         if float(row[col+1]) < float(item[1]):
                                             item[1] = row[col+1]
                                         if float(row[col+2]) > float(item[2]):
                                             item[2] = row[col+2]
 
-                                        col += 2
+                                    col += 2
 
-                                    elif item[0].endswith('rise transition'):
+                                    if item[0].endswith('rise transition'):
                                         if float(row[col+1]) < float(item[1]):
                                             item[1] = row[col+1]
                                         if float(row[col+2]) > float(item[2]):
                                             item[2] = row[col+2]
 
-                                        col += 2
+                                    col += 2
 
-                                    elif item[0].endswith('fall transition'):
+                                    if item[0].endswith('fall transition'):
                                         if float(row[col+1]) < float(item[1]):
                                             item[1] = row[col+1]
                                         if float(row[col+2]) > float(item[2]):
                                             item[2] = row[col+2]
 
-                                        col += 2
+                                    col += 2
 
                             col += 1
 
@@ -225,31 +243,31 @@ def parse_characterizer_csv(f, pages):
                                         if float(row[col+2]) > float(item[2]):
                                             item[2] = row[col+2]
 
-                                        col += 2
+                                    col += 2
 
-                                    elif item[0].endswith('setup falling'):
+                                    if item[0].endswith('setup falling'):
                                         if float(row[col+1]) < float(item[1]):
                                             item[1] = row[col+1]
                                         if float(row[col+2]) > float(item[2]):
                                             item[2] = row[col+2]
 
-                                        col += 2
+                                    col += 2
 
-                                    elif item[0].endswith('hold rising'):
+                                    if item[0].endswith('hold rising'):
                                         if float(row[col+1]) < float(item[1]):
                                             item[1] = row[col+1]
                                         if float(row[col+2]) > float(item[2]):
                                             item[2] = row[col+2]
 
-                                        col += 2
+                                    col += 2
 
-                                    elif item[0].endswith('hold falling'):
+                                    if item[0].endswith('hold falling'):
                                         if float(row[col+1]) < float(item[1]):
                                             item[1] = row[col+1]
                                         if float(row[col+2]) > float(item[2]):
                                             item[2] = row[col+2]
 
-                                        col += 2
+                                    col += 2
 
                             col += 1
 
@@ -264,31 +282,31 @@ def parse_characterizer_csv(f, pages):
                                         if float(row[col+2]) > float(item[2]):
                                             item[2] = row[col+2]
 
-                                        col += 2
+                                    col += 2
 
-                                    elif item[0].endswith('setup falling'):
+                                    if item[0].endswith('setup falling'):
                                         if float(row[col+1]) < float(item[1]):
                                             item[1] = row[col+1]
                                         if float(row[col+2]) > float(item[2]):
                                             item[2] = row[col+2]
 
-                                        col += 2
+                                    col += 2
 
-                                    elif item[0].endswith('hold rising'):
+                                    if item[0].endswith('hold rising'):
                                         if float(row[col+1]) < float(item[1]):
                                             item[1] = row[col+1]
                                         if float(row[col+2]) > float(item[2]):
                                             item[2] = row[col+2]
 
-                                        col += 2
+                                    col += 2
 
-                                    elif item[0].endswith('hold falling'):
+                                    if item[0].endswith('hold falling'):
                                         if float(row[col+1]) < float(item[1]):
                                             item[1] = row[col+1]
                                         if float(row[col+2]) > float(item[2]):
                                             item[2] = row[col+2]
 
-                                        col += 2
+                                    col += 2
 
                             col += 1
 
@@ -303,31 +321,31 @@ def parse_characterizer_csv(f, pages):
                                         if float(row[col+2]) > float(item[2]):
                                             item[2] = row[col+2]
 
-                                        col += 2
+                                    col += 2
 
-                                    elif item[0].endswith('setup falling'):
+                                    if item[0].endswith('setup falling'):
                                         if float(row[col+1]) < float(item[1]):
                                             item[1] = row[col+1]
                                         if float(row[col+2]) > float(item[2]):
                                             item[2] = row[col+2]
 
-                                        col += 2
+                                    col += 2
 
-                                    elif item[0].endswith('hold rising'):
+                                    if item[0].endswith('hold rising'):
                                         if float(row[col+1]) < float(item[1]):
                                             item[1] = row[col+1]
                                         if float(row[col+2]) > float(item[2]):
                                             item[2] = row[col+2]
 
-                                        col += 2
+                                    col += 2
 
-                                    elif item[0].endswith('hold falling'):
+                                    if item[0].endswith('hold falling'):
                                         if float(row[col+1]) < float(item[1]):
                                             item[1] = row[col+1]
                                         if float(row[col+2]) > float(item[2]):
                                             item[2] = row[col+2]
 
-                                        col += 2
+                                    col += 2
 
                             col += 1
 
@@ -336,8 +354,36 @@ def parse_characterizer_csv(f, pages):
                                 sheet.description.append(str(element))
                             break
 
-                    new_sheet.corners_table.add_row([PROC, process_name(
+                    #check if new power is worse the previous
-                        PROC), VOLT, TEMP, LIB_NAME.replace(OUT_DIR, '').replace(NAME, '')])
+                    while(True):
+                        col_start = col
+                        if row[col] == 'power':
+                            for item in sheet.power_table.rows:
+                                if item[0].startswith(row[col+1]):
+                                    if item[2].startswith('{0} Rising'.format(row[col+2])):
+                                        if float(item[2]) < float(row[col+3]):
+                                            item[2] = row[col+3]
+                                    if item[2].startswith('{0} Falling'.format(row[col+2])):
+                                        if float(item[2]) < float(row[col+3]):
+                                            item[2] = row[col+3]
+                            col += 4
+                        else:
+                            break
+                    # check if new leakge is worse the previous
+                    while(True):
+                        col_start = col
+                        if row[col] == 'leak':
+                            for item in sheet.power_table.rows:
+                                if item[0].startswith(row[col+1]):
+                                    if float(item[2]) < float(row[col+2]):
+                                            item[2] = row[col+2]
+                            col += 3
+
+                        else:
+                            break
+                    # add new corner information
+                    new_sheet.corners_table.add_row(
+                        [PROC, VOLT, TEMP, LIB_NAME.replace(OUT_DIR, '').replace(NAME, '')])
                     new_sheet.dlv_table.add_row(
                         ['.lib', 'Synthesis models', '<a href="file://{0}">{1}</a>'.format(LIB_NAME, LIB_NAME.replace(OUT_DIR, ''))])
 
@@ -351,14 +397,15 @@ def parse_characterizer_csv(f, pages):
                 new_sheet.time = DATETIME
                 new_sheet.DRC = DRC
                 new_sheet.LVS = LVS
+                new_sheet.ANALYTICAL_MODEL = ANALYTICAL_MODEL
                 new_sheet.description = [NAME, NUM_WORDS, NUM_BANKS, NUM_RW_PORTS, NUM_W_PORTS,
                                          NUM_R_PORTS, TECH_NAME, MIN_PERIOD, WORD_SIZE, ORIGIN_ID, DATETIME]
 
                 new_sheet.corners_table = table_gen.table_gen("corners")
                 new_sheet.corners_table.add_row(
-                    ['Corner Name', 'Process', 'Power Supply', 'Temperature', 'Library Name Suffix'])
+                    ['Transistor Type', 'Power Supply', 'Temperature', 'Corner Name'])
-                new_sheet.corners_table.add_row([PROC, process_name(
+                new_sheet.corners_table.add_row(
-                    PROC), VOLT, TEMP, LIB_NAME.replace(OUT_DIR, '').replace(NAME, '')])
+                    [PROC, VOLT, TEMP, LIB_NAME.replace(OUT_DIR, '').replace(NAME, '')])
                 new_sheet.operating_table = table_gen.table_gen(
                     "operating_table")
                 new_sheet.operating_table.add_row(
@@ -375,9 +422,13 @@ def parse_characterizer_csv(f, pages):
                     # failed to provide non-zero MIN_PERIOD
                     new_sheet.operating_table.add_row(
                         ['Operating Frequency (F)', '', '', "not available in netlist only", 'MHz'])
+                new_sheet.power_table = table_gen.table_gen("power")
+                new_sheet.power_table.add_row(
+                    ['Pins', 'Mode', 'Power', 'Units'])
                 new_sheet.timing_table = table_gen.table_gen("timing")
                 new_sheet.timing_table.add_row(
                     ['Parameter', 'Min', 'Max', 'Units'])
+                # parse initial timing information
                 while(True):
                     col_start = col
                     if(row[col].startswith('DIN')):
@@ -504,6 +555,32 @@ def parse_characterizer_csv(f, pages):
                         for element in row[col_start:col-1]:
                             sheet.description.append(str(element))
                         break
+                # parse initial power and leakage information 
+                while(True):
+                    start = col
+                    if(row[col].startswith('power')):
+                        new_sheet.power_table.add_row([row[col+1],
+                                                       '{0} Rising'.format(
+                                                           row[col+2]),
+                                                       row[col+3][0:6],
+                                                       'mW']
+                                                      )
+                        new_sheet.power_table.add_row([row[col+1],
+                                                       '{0} Falling'.format(
+                                                           row[col+2]),
+                                                       row[col+3][0:6],
+                                                       'mW']
+                                                      )
+
+                        col += 4
+
+                    elif(row[col].startswith('leak')):
+                        new_sheet.power_table.add_row(
+                            [row[col+1], 'leakage', row[col+2], 'mW'])
+                        col += 3
+
+                    else:
+                        break
 
                 new_sheet.dlv_table = table_gen.table_gen("dlv")
                 new_sheet.dlv_table.add_row(['Type', 'Description', 'Link'])
@@ -537,12 +614,13 @@ def parse_characterizer_csv(f, pages):
                 new_sheet.io_table.add_row(['NUM_RW_PORTS', NUM_RW_PORTS])
                 new_sheet.io_table.add_row(['NUM_R_PORTS', NUM_R_PORTS])
                 new_sheet.io_table.add_row(['NUM_W_PORTS', NUM_W_PORTS])
-                new_sheet.io_table.add_row(['Area', AREA])
+                new_sheet.io_table.add_row(
+                    ['Area (&microm<sup>2</sup>)', str(round(float(AREA)))])
 
 
 class datasheet_gen():
     def datasheet_write(name):
-
+        """writes the datasheet to a file"""
         in_dir = OPTS.openram_temp
 
         if not (os.path.isdir(in_dir)):

compiler/datasheet/table_gen.py

@@ -1,24 +1,29 @@
 class table_gen:
-    def __init__(self,name):
+    """small library of functions to generate the html tables"""
+
+    def __init__(self, name):
         self.name = name
         self.rows = []
         self.table_id = 'data'
 
-    def add_row(self,row):
+    def add_row(self, row):
+        """add a row to table_gen object"""
         self.rows.append(row)
 
     def gen_table_head(self):
+        """generate html table header"""
         html = ''
 
         html += '<thead>'
         html += '<tr>'
         for col in self.rows[0]:
-            html += '<th>' + str(col) +  '</th>'
+            html += '<th>' + str(col) + '</th>'
         html += '</tr>'
         html += '</thead>'
         return html
 
     def gen_table_body(self):
+        """generate html body (used after gen_table_head)"""
         html = ''
 
         html += '<tbody>'
@@ -33,7 +38,7 @@ class table_gen:
         return html
 
     def to_html(self):
-       
+        """writes table_gen object to inline html"""
         html = ''
         html += '<table id= \"'+self.table_id+'\">'
         html += self.gen_table_head()

compiler/datasheet/wavedrom.py

@@ -1,827 +0,0 @@
-#!/usr/bin/python
-# The MIT License (MIT)
-#
-# Copyright (c) 2011-2016 Aliaksei Chapyzhenka
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the "Software"), to deal
-# in the Software without restriction, including without limitation the rights
-# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-# copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-# THE SOFTWARE.
-#
-# Translated to Python from original file:
-# https://github.com/drom/wavedrom/blob/master/src/WaveDrom.js
-#
-
-import sys
-import json
-import math
-import waveskin
-
-font_width = 7
-
-lane = {
-    "xs"     : 20,    # tmpgraphlane0.width
-    "ys"     : 20,    # tmpgraphlane0.height
-    "xg"     : 120,   # tmpgraphlane0.x
-    "yg"     : 0,     # head gap
-    "yh0"    : 0,     # head gap title
-    "yh1"    : 0,     # head gap
-    "yf0"    : 0,     # foot gap
-    "yf1"    : 0,     # foot gap
-    "y0"     : 5,     # tmpgraphlane0.y
-    "yo"     : 30,    # tmpgraphlane1.y - y0
-    "tgo"    : -10,   # tmptextlane0.x - xg
-    "ym"     : 15,    # tmptextlane0.y - y0
-    "xlabel" : 6,     # tmptextlabel.x - xg
-    "xmax"   : 1,
-    "scale"  : 1,
-    "head"   : {},
-    "foot"   : {}
-}
-
-def genBrick (texts, extra, times) :
-
-    R = []
-    if len( texts ) == 4 :
-        for j in range( times ):
-
-            R.append(texts[0])
-
-            for i in range ( extra ):
-                R.append(texts[1])
-
-            R.append(texts[2])
-            for i in range ( extra ):
-                R.append(texts[3])
-
-        return R
-
-    if len( texts ) == 1 :
-        texts.append(texts[0])
-
-    R.append(texts[0])
-    for i in range (times * (2 * (extra + 1)) - 1) :
-        R.append(texts[1])
-    return R
-
-def genFirstWaveBrick (text, extra, times) :
-
-    pattern = {
-        'p': ['pclk', '111', 'nclk', '000'],
-        'n': ['nclk', '000', 'pclk', '111'],
-        'P': ['Pclk', '111', 'nclk', '000'],
-        'N': ['Nclk', '000', 'pclk', '111'],
-        'l': ['000'],
-        'L': ['000'],
-        '0': ['000'],
-        'h': ['111'],
-        'H': ['111'],
-        '1': ['111'],
-        '=': ['vvv-2'],
-        '2': ['vvv-2'],
-        '3': ['vvv-3'],
-        '4': ['vvv-4'],
-        '5': ['vvv-5'],
-        'd': ['ddd'],
-        'u': ['uuu'],
-        'z': ['zzz']
-        }
-
-    return genBrick( pattern.get( text,  ['xxx'] )  , extra, times );
-
-def genWaveBrick (text, extra, times) :
-
-    x1 = {'p':'pclk', 'n':'nclk', 'P':'Pclk', 'N':'Nclk', 'h':'pclk', 'l':'nclk', 'H':'Pclk', 'L':'Nclk'}
-    x2 = {'0':'0', '1':'1', 'x':'x', 'd':'d', 'u':'u', 'z':'z', '=':'v',  '2':'v',  '3':'v',  '4':'v',  '5':'v' }
-    x3 = {'0': '', '1': '', 'x': '', 'd': '', 'u': '', 'z': '', '=':'-2', '2':'-2', '3':'-3', '4':'-4', '5':'-5'}
-    y1 = {
-        'p':'0', 'n':'1',
-        'P':'0', 'N':'1',
-        'h':'1', 'l':'0',
-        'H':'1', 'L':'0',
-        '0':'0', '1':'1', 'x':'x', 'd':'d', 'u':'u', 'z':'z', '=':'v', '2':'v', '3':'v', '4':'v', '5':'v'}
-
-    y2 = {
-        'p': '', 'n': '',
-        'P': '', 'N': '',
-        'h': '', 'l': '',
-        'H': '', 'L': '',
-        '0': '', '1': '', 'x': '', 'd': '', 'u': '', 'z': '', '=':'-2', '2':'-2', '3':'-3', '4':'-4', '5':'-5'}
-
-    x4 = {
-        'p': '111', 'n': '000',
-        'P': '111', 'N': '000',
-        'h': '111', 'l': '000',
-        'H': '111', 'L': '000',
-        '0': '000', '1': '111', 'x': 'xxx', 'd': 'ddd', 'u': 'uuu', 'z': 'zzz',
-        '=': 'vvv-2', '2': 'vvv-2', '3': 'vvv-3', '4': 'vvv-4', '5': 'vvv-5'}
-
-    x5 = {'p':'nclk', 'n':'pclk', 'P':'nclk', 'N':'pclk'}
-    x6 = {'p': '000', 'n': '111', 'P': '000', 'N': '111'}
-    xclude = {'hp':'111', 'Hp':'111', 'ln': '000', 'Ln': '000', 'nh':'111', 'Nh':'111', 'pl': '000', 'Pl':'000'}
-
-    #atext = text.split()
-    atext = text
-
-    tmp0 = x4.get(atext[1])
-    tmp1 = x1.get(atext[1])
-    if tmp1 == None :
-        tmp2 = x2.get(atext[1])
-        if tmp2 == None :
-            # unknown
-            return genBrick(['xxx'], extra, times)
-        else :
-            tmp3 = y1.get(atext[0])
-            if tmp3 == None :
-                # unknown
-                return genBrick(['xxx'], extra, times)
-
-            # soft curves
-            return genBrick([tmp3 + 'm' + tmp2 + y2[atext[0]] + x3[atext[1]], tmp0], extra, times)
-
-    else :
-        tmp4 = xclude.get(text)
-        if tmp4 != None :
-            tmp1 = tmp4
-
-        # sharp curves
-        tmp2 = x5.get(atext[1])
-        if tmp2 == None :
-            # hlHL
-            return genBrick([tmp1, tmp0], extra, times)
-        else :
-            # pnPN
-            return genBrick([tmp1, tmp0, tmp2, x6[atext[1]]], extra, times)
-
-def parseWaveLane (text, extra) :
-
-    R = []
-    Stack = text
-    Next   = Stack[0]
-    Stack  = Stack[1:]
-
-    Repeats = 1
-    while len(Stack) and ( Stack[0] == '.' or Stack[0] == '|' ): # repeaters parser
-        Stack=Stack[1:]
-        Repeats += 1
-
-    R.extend(genFirstWaveBrick(Next, extra, Repeats))
-
-    while len(Stack) :
-        Top = Next
-        Next = Stack[0]
-        Stack = Stack[1:]
-        Repeats = 1
-        while len(Stack) and ( Stack[0] == '.' or Stack[0] == '|' ) : # repeaters parser
-            Stack=Stack[1:]
-            Repeats += 1
-        R.extend(genWaveBrick((Top + Next), extra, Repeats))
-
-    for i in range( lane['phase'] ):
-        R = R[1:]
-    return R
-
-def parseWaveLanes (sig) :
-
-    def data_extract (e) :
-        tmp = e.get('data')
-        if tmp == None : return None
-        if is_type_str (tmp) : tmp=tmp.split()
-        return tmp
-
-    content = []
-    for sigx in sig :
-        lane['period'] = sigx.get('period',1)
-        lane['phase']  = int( sigx.get('phase',0 ) * 2 )
-        sub_content=[]
-        sub_content.append( [sigx.get('name',' '), sigx.get('phase',0 ) ] )
-        sub_content.append( parseWaveLane( sigx['wave'], int(lane['period'] * lane['hscale'] - 1 ) ) if sigx.get('wave') else None )
-        sub_content.append( data_extract(sigx) )
-        content.append(sub_content)
-
-    return content
-
-def findLaneMarkers (lanetext) :
-
-    lcount = 0
-    gcount = 0
-    ret = []
-    for i in range( len( lanetext ) ) :
-        if lanetext[i] == 'vvv-2' or lanetext[i] == 'vvv-3' or lanetext[i] == 'vvv-4' or lanetext[i] == 'vvv-5' :
-            lcount += 1
-        else :
-            if lcount !=0 :
-                ret.append(gcount - ((lcount + 1) / 2))
-                lcount = 0
-
-        gcount += 1
-
-    if lcount != 0 :
-        ret.append(gcount - ((lcount + 1) / 2))
-
-    return ret
-
-def renderWaveLane (root, content, index) :
-
-    xmax     = 0
-    xgmax    = 0
-    glengths = []
-    svgns    = 'http://www.w3.org/2000/svg'
-    xlinkns  = 'http://www.w3.org/1999/xlink'
-    xmlns    = 'http://www.w3.org/XML/1998/namespace'
-    for j in range( len(content) ):
-        name = content[j][0][0]
-        if name : # check name
-            g = [
-                'g',
-                {
-                    'id': 'wavelane_' + str(j) + '_' + str(index),
-                    'transform': 'translate(0,' + str(lane['y0'] + j * lane['yo']) + ')'
-                }
-            ]
-            root.append(g)
-            title = [
-                'text',
-                {
-                    'x': lane['tgo'],
-                    'y': lane['ym'],
-                    'class': 'info',
-                    'text-anchor': 'end',
-                    'xml:space': 'preserve'
-                },
-                ['tspan', name]
-            ]
-            g.append(title)
-
-            glengths.append( len(name) * font_width + font_width )
-
-            xoffset = content[j][0][1]
-            xoffset = math.ceil(2 * xoffset) - 2 * xoffset if xoffset > 0 else -2 * xoffset
-            gg = [
-                'g',
-                {
-                    'id': 'wavelane_draw_' + str(j) + '_' + str(index),
-                    'transform': 'translate(' + str( xoffset * lane['xs'] ) + ', 0)'
-                }
-            ]
-            g.append(gg)
-
-            if content[j][1] :
-                for i in range( len(content[j][1]) ) :
-                    b = [
-                       'use',
-                       {
-                           #'id': 'use_' + str(i) + '_' + str(j) + '_' + str(index),
-                           'xmlns:xlink':xlinkns,
-                           'xlink:href': '#' + str( content[j][1][i] ),
-                           'transform': 'translate(' + str(i * lane['xs']) + ')'
-                       }
-                    ]
-                    gg.append(b)
-
-                if content[j][2] and len(content[j][2]) :
-                    labels = findLaneMarkers(content[j][1])
-                    if len(labels) != 0 :
-                        for k in range( len(labels) ) :
-                            if content[j][2] and k < len(content[j][2]) :
-                                title = [
-                                    'text',
-                                    {
-                                        'x': int(labels[k]) * lane['xs'] + lane['xlabel'],
-                                        'y': lane['ym'],
-                                        'text-anchor': 'middle',
-                                        'xml:space': 'preserve'
-                                    },
-                                    ['tspan',content[j][2][k]]
-                                ]
-                                gg.append(title)
-
-
-                if len(content[j][1]) > xmax :
-                    xmax = len(content[j][1])
-
-    lane['xmax'] = xmax
-    lane['xg'] = xgmax + 20
-    return glengths
-
-def renderMarks (root, content, index) :
-
-    def captext ( g, cxt, anchor, y ) :
-
-        if cxt.get(anchor) and cxt[anchor].get('text') :
-            tmark = [
-                'text',
-                {
-                    'x': float( cxt['xmax'] ) * float( cxt['xs'] ) / 2,
-                    'y': y,
-                    'text-anchor': 'middle',
-                    'fill': '#000',
-                    'xml:space': 'preserve'
-                }, cxt[anchor]['text']
-            ]
-            g.append(tmark)
-
-    def ticktock ( g, cxt, ref1, ref2, x, dx, y, length ) :
-        L = []
-
-        if cxt.get(ref1) == None or cxt[ref1].get(ref2) == None :
-            return
-
-        val = cxt[ref1][ref2]
-        if is_type_str( val ) :
-            val = val.split()
-        elif type( val ) is int :
-            offset = val
-            val = []
-            for i in range ( length ) :
-                val.append(i + offset)
-
-        if type( val ) is list :
-            if len( val ) == 0 :
-                return
-            elif len( val ) == 1 :
-                offset = val[0]
-                if is_type_str(offset) :
-                    L = val
-                else :
-                    for i in range ( length ) :
-                        L[i] = i + offset
-
-            elif len( val ) == 2:
-                offset = int(val[0])
-                step   = int(val[1])
-                tmp = val[1].split('.')
-                if len( tmp ) == 2 :
-                    dp = len( tmp[1] )
-
-                if is_type_str(offset) or is_type_str(step) :
-                    L = val
-                else :
-                    offset = step * offset
-                    for i in range( length ) :
-                        L[i] = "{0:.",dp,"f}".format(step * i + offset)
-
-            else :
-                L = val
-
-        else :
-           return
-
-        for i in range( length ) :
-            tmp = L[i]
-            tmark = [
-                'text',
-                {
-                    'x': i * dx + x,
-                    'y': y,
-                    'text-anchor': 'middle',
-                    'class': 'muted',
-                    'xml:space': 'preserve'
-                }, str(tmp)
-            ]
-            g.append(tmark)
-
-    mstep  = 2 * int(lane['hscale'])
-    mmstep = mstep * lane['xs']
-    marks  = int( lane['xmax'] / mstep )
-    gy     = len( content ) * int(lane['yo'])
-
-    g = ['g', {'id': 'gmarks_' + str(index)}]
-    root.insert(0,g)
-
-    for i in range( marks + 1):
-        gg = [
-            'path',
-            {
-                'id':    'gmark_' + str(i) + '_' + str(index),
-                'd':     'm ' + str(i * mmstep) + ',' + '0' + ' 0,' + str(gy),
-                'style': 'stroke:#888;stroke-width:0.5;stroke-dasharray:1,3'
-            }
-        ]
-        g.append( gg )
-
-    captext(g, lane, 'head', -33 if lane['yh0'] else -13 )
-    captext(g, lane, 'foot', gy + ( 45 if lane['yf0'] else 25 ) )
-
-    ticktock( g, lane, 'head', 'tick',          0, mmstep,      -5, marks + 1)
-    ticktock( g, lane, 'head', 'tock', mmstep / 2, mmstep,      -5, marks)
-    ticktock( g, lane, 'foot', 'tick',          0, mmstep, gy + 15, marks + 1)
-    ticktock( g, lane, 'foot', 'tock', mmstep / 2, mmstep, gy + 15, marks)
-
-def renderArcs (root, source, index, top) :
-
-    Stack = []
-    Edge = {'words': [], 'frm': 0, 'shape': '', 'to': 0, 'label': ''}
-    Events = {}
-    svgns = 'http://www.w3.org/2000/svg'
-    xmlns = 'http://www.w3.org/XML/1998/namespace'
-
-    if source :
-        for i in range (len (source) ) :
-            lane['period'] = source[i].get('period',1)
-            lane['phase']  = int( source[i].get('phase',0 ) * 2 )
-            text = source[i].get('node')
-            if text:
-                Stack = text
-                pos = 0
-                while len( Stack ) :
-                    eventname = Stack[0]
-                    Stack=Stack[1:]
-                    if eventname != '.' :
-                        Events[eventname] = {
-                            'x' : str( int( float( lane['xs'] ) * (2 * pos * lane['period'] * lane['hscale'] - lane['phase'] ) + float( lane['xlabel'] ) ) ),
-                            'y' : str( int( i * lane['yo'] + lane['y0'] + float( lane['ys'] ) * 0.5 ) )
-                        }
-                    pos += 1
-
-        gg = [ 'g', { 'id' : 'wavearcs_' + str( index ) } ]
-        root.append(gg)
-
-        if top.get('edge') :
-            for i in range( len ( top['edge'] ) ) :
-                Edge['words'] = top['edge'][i].split()
-                Edge['label'] = top['edge'][i][len(Edge['words'][0]):]
-                Edge['label'] = Edge['label'][1:]
-                Edge['frm']   = Edge['words'][0][0]
-                Edge['to']    = Edge['words'][0][-1]
-                Edge['shape'] = Edge['words'][0][1:-1]
-                frm  = Events[Edge['frm']]
-                to   = Events[Edge['to']]
-                gmark = [
-                  'path',
-                   {
-                     'id': 'gmark_' + Edge['frm'] + '_' + Edge['to'],
-                     'd': 'M ' + frm['x'] + ',' + frm['y'] + ' ' + to['x']   + ',' + to['y'],
-                     'style': 'fill:none;stroke:#00F;stroke-width:1'
-                   }
-                ]
-                gg.append(gmark)
-                dx = float( to['x'] ) - float( frm['x'] )
-                dy = float( to['y'] ) - float( frm['y'] )
-                lx = (float(frm['x']) + float(to['x'])) / 2
-                ly = (float(frm['y']) + float(to['y'])) / 2
-                pattern = {
-                    '~'    : {'d': 'M ' + frm['x'] + ',' + frm['y'] + ' c ' + str(0.7 * dx) + ', 0 ' + str(0.3 * dx) + ', ' + str(dy) + ' ' + str(dx) + ', ' + str(dy) },
-                    '-~'   : {'d': 'M ' + frm['x'] + ',' + frm['y'] + ' c ' + str(0.7 * dx) + ', 0 ' +       str(dx) + ', ' + str(dy) + ' ' + str(dx) + ', ' + str(dy) },
-                    '~-'   : {'d': 'M ' + frm['x'] + ',' + frm['y'] + ' c ' + '0'           + ', 0 ' + str(0.3 * dx) + ', ' + str(dy) + ' ' + str(dx) + ', ' + str(dy) },
-                    '-|'   : {'d': 'm ' + frm['x'] + ',' + frm['y'] + ' ' + str(dx) + ',0 0,' + str(dy)},
-                    '|-'   : {'d': 'm ' + frm['x'] + ',' + frm['y'] + ' 0,' + str(dy) + ' ' + str(dx) + ',0'},
-                    '-|-'  : {'d': 'm ' + frm['x'] + ',' + frm['y'] + ' ' + str(dx / 2) + ',0 0,' + str(dy) + ' ' + str(dx / 2) + ',0'},
-                    '->'   : {'style': 'marker-end:url(#arrowhead);stroke:#0041c4;stroke-width:1;fill:none'},
-                    '~>'   : {'style': 'marker-end:url(#arrowhead);stroke:#0041c4;stroke-width:1;fill:none', 'd': 'M ' + frm['x'] + ',' + frm['y'] + ' ' + 'c ' + str(0.7 * dx) + ', 0 ' + str(0.3 * dx) + ', ' + str(dy) + ' ' + str(dx) + ', ' + str(dy)},
-                    '-~>'  : {'style': 'marker-end:url(#arrowhead);stroke:#0041c4;stroke-width:1;fill:none', 'd': 'M ' + frm['x'] + ',' + frm['y'] + ' ' + 'c ' + str(0.7 * dx) + ', 0 ' +     str(dx) + ', ' + str(dy) + ' ' + str(dx) + ', ' + str(dy)},
-                    '~->'  : {'style': 'marker-end:url(#arrowhead);stroke:#0041c4;stroke-width:1;fill:none', 'd': 'M ' + frm['x'] + ',' + frm['y'] + ' ' + 'c ' + '0'     + ', 0 ' + str(0.3 * dx) + ', ' + str(dy) + ' ' + str(dx) + ', ' + str(dy)},
-                    '-|>'  : {'style': 'marker-end:url(#arrowhead);stroke:#0041c4;stroke-width:1;fill:none', 'd': 'm ' + frm['x'] + ',' + frm['y'] + ' ' + str(dx) + ',0 0,' + str(dy)},
-                    '|->'  : {'style': 'marker-end:url(#arrowhead);stroke:#0041c4;stroke-width:1;fill:none', 'd': 'm ' + frm['x'] + ',' + frm['y'] + ' 0,' + str(dy) + ' ' + str(dx) + ',0'},
-                    '-|->' : {'style': 'marker-end:url(#arrowhead);stroke:#0041c4;stroke-width:1;fill:none', 'd': 'm ' + frm['x'] + ',' + frm['y'] + ' ' + str(dx / 2) + ',0 0,' + str(dy) + ' ' + str(dx / 2) + ',0'},
-                    '<->'  : {'style': 'marker-end:url(#arrowhead);marker-start:url(#arrowtail);stroke:#0041c4;stroke-width:1;fill:none'},
-                    '<~>'  : {'style': 'marker-end:url(#arrowhead);marker-start:url(#arrowtail);stroke:#0041c4;stroke-width:1;fill:none','d': 'M ' + frm['x'] + ',' + frm['y'] + ' ' + 'c ' + str(0.7 * dx) + ', 0 ' + str(0.3 * dx) + ', ' + str(dy) + ' ' + str(dx) + ', ' + str(dy)},
-                    '<-~>' : {'style': 'marker-end:url(#arrowhead);marker-start:url(#arrowtail);stroke:#0041c4;stroke-width:1;fill:none','d': 'M ' + frm['x'] + ',' + frm['y'] + ' ' + 'c ' + str(0.7 * dx) + ', 0 ' +     str(dx) + ', ' + str(dy) + ' ' + str(dx) + ', ' + str(dy)},
-                    '<-|>' : {'style': 'marker-end:url(#arrowhead);marker-start:url(#arrowtail);stroke:#0041c4;stroke-width:1;fill:none','d': 'm ' + frm['x'] + ',' + frm['y'] + ' ' + str(dx) + ',0 0,' + str(dy)},
-                    '<-|->': {'style': 'marker-end:url(#arrowhead);marker-start:url(#arrowtail);stroke:#0041c4;stroke-width:1;fill:none','d': 'm ' + frm['x'] + ',' + frm['y'] + ' ' + str(dx / 2) + ',0 0,' + str(dy) + ' ' + str(dx / 2) + ',0'}
-                }
-                gmark[1].update( pattern.get( Edge['shape'], { 'style': 'fill:none;stroke:#00F;stroke-width:1' } ) )
-
-                if Edge['label']:
-                    if Edge['shape'] == '-~' :
-                         lx = float(frm['x']) + (float(to['x']) - float(frm['x'])) * 0.75
-                    if Edge['shape'] == '~-' :
-                         lx = float(frm['x']) + (float(to['x']) - float(frm['x'])) * 0.25
-                    if Edge['shape'] == '-|' :
-                         lx = float(to['x'])
-                    if Edge['shape'] == '|-' :
-                         lx = float(frm['x'])
-                    if Edge['shape'] == '-~>':
-                         lx = float(frm['x']) + (float(to['x']) - float(frm['x'])) * 0.75
-                    if Edge['shape'] == '~->':
-                         lx = float(frm['x']) + (float(to['x']) - float(frm['x'])) * 0.25
-                    if Edge['shape'] == '-|>' :
-                         lx = float(to['x'])
-                    if Edge['shape'] == '|->' :
-                         lx = float(frm['x'])
-                    if Edge['shape'] == '<-~>':
-                         lx = float(frm['x']) + (float(to['x']) - float(frm['x'])) * 0.75
-                    if Edge['shape'] =='<-|>' :
-                         lx = float(to['x'])
-
-                    lwidth = len( Edge['label'] ) * font_width
-                    label = [
-                        'text',
-                        {
-                            'style': 'font-size:10px;',
-                            'text-anchor': 'middle',
-                            'xml:space': 'preserve',
-                            'x': int( lx ),
-                            'y': int( ly + 3 )
-                        },
-                        [ 'tspan', Edge['label'] ]
-                    ]
-                    underlabel = [
-                        'rect',
-                        {
-                            'height': 9,
-                            'style': 'fill:#FFF;',
-                            'width': lwidth,
-                            'x': int( lx - lwidth / 2 ),
-                            'y': int( ly - 5 )
-                        }
-                    ]
-                    gg.append(underlabel)
-                    gg.append(label)
-
-        for k in Events:
-            if k.islower() :
-                if int( Events[k]['x'] ) > 0 :
-                    lwidth = len( k ) * font_width
-                    underlabel = [
-                        'rect',
-                        {
-                            'x': float( Events[k]['x'] ) - float(lwidth) / 2,
-                            'y': int( Events[k]['y'] ) - 4,
-                            'height': 8,
-                            'width': lwidth,
-                            'style': 'fill:#FFF;'
-                        }
-                    ]
-                    gg.append(underlabel)
-                    label = [
-                        'text',
-                        {
-                            'style': 'font-size:8px;',
-                            'x': int( Events[k]['x'] ),
-                            'y': int( Events[k]['y'] ) + 2,
-                            'width': lwidth,
-                            'text-anchor': 'middle'
-                        },
-                        k
-                    ]
-                    gg.append(label)
-
-def parseConfig (source) :
-
-    lane['hscale'] = 1
-    if lane.get('hscale0') :
-        lane['hscale'] = lane['hscale0']
-
-    if source and source.get('config') and source.get('config').get('hscale'):
-        hscale = round(source.get('config').get('hscale'))
-        if hscale > 0 :
-            if hscale > 100 : hscale = 100
-            lane['hscale'] = hscale
-
-    lane['yh0'] = 0
-    lane['yh1'] = 0
-    if source and source.get('head') :
-        lane['head'] = source['head']
-        if source.get('head').get('tick',0) == 0 : lane['yh0'] = 20
-        if source.get('head').get('tock',0) == 0 : lane['yh0'] = 20
-        if source.get('head').get('text') : lane['yh1'] = 46; lane['head']['text'] = source['head']['text']
-
-    lane['yf0'] = 0
-    lane['yf1'] = 0
-    if source and source.get('foot') :
-        lane['foot'] = source['foot']
-        if source.get('foot').get('tick',0) == 0 : lane['yf0'] = 20
-        if source.get('foot').get('tock',0) == 0 : lane['yf0'] = 20
-        if source.get('foot').get('text') : lane['yf1'] = 46; lane['foot']['text'] = source['foot']['text']
-
-def rec (tmp, state) :
-
-    name = str( tmp[0] )
-    delta_x = 25
-
-    state['x'] += delta_x
-    for i in range( len( tmp ) ) :
-       if type( tmp[i] ) is list :
-           old_y = state['y']
-           rec( tmp[i], state )
-           state['groups'].append( {'x':state['xx'], 'y':old_y, 'height':state['y'] - old_y, 'name': state['name'] } )
-       elif type( tmp[i] ) is dict :
-           state['lanes'].append(tmp[i])
-           state['width'].append(state['x'])
-           state['y'] += 1
-
-    state['xx'] = state['x']
-    state['x'] -= delta_x
-    state['name'] = name
-
-def insertSVGTemplate (index, parent, source) :
-
-    e = waveskin.WaveSkin['default']
-
-    if source.get('config') and source.get('config').get('skin') :
-        if waveskin.WaveSkin.get( source.get('config').get('skin') ) :
-            e = waveskin.WaveSkin[ source.get('config').get('skin') ]
-
-    if index == 0 :
-        lane['xs']     = int( e[3][1][2][1]['width'] )
-        lane['ys']     = int( e[3][1][2][1]['height'] )
-        lane['xlabel'] = int( e[3][1][2][1]['x'] )
-        lane['ym']     = int( e[3][1][2][1]['y'] )
-
-    else :
-        e = ['svg', {'id': 'svg', 'xmlns': 'http://www.w3.org/2000/svg', 'xmlns:xlink': 'http://www.w3.org/1999/xlink', 'height': '0'},
-            ['g', {'id': 'waves'},
-                ['g', {'id': 'lanes'}],
-                ['g', {'id': 'groups'}]
-            ]
-        ]
-
-    e[-1][1]['id']    = 'waves_'      + str(index)
-    e[-1][2][1]['id'] = 'lanes_'      + str(index)
-    e[-1][3][1]['id'] = 'groups_'     + str(index)
-    e[1]['id']        = 'svgcontent_' + str(index)
-    e[1]['height']    = 0
-
-    parent.extend(e)
-
-def renderWaveForm (index, source, output) :
-
-    xmax = 0
-    root = []
-    groups = []
-
-    if source.get('signal'):
-        insertSVGTemplate(index, output, source)
-        parseConfig( source )
-        ret = {'x':0, 'y':0, 'xmax':0, 'width':[], 'lanes':[], 'groups':[] }
-        rec( source['signal'], ret )
-        content  = parseWaveLanes(ret['lanes'])
-        glengths = renderWaveLane(root, content, index)
-        for i in range( len( glengths ) ):
-            xmax = max( xmax, ( glengths[i] + ret['width'][i] ) )
-        renderMarks(root, content, index)
-        renderArcs(root, ret['lanes'], index, source)
-        renderGaps(root, ret['lanes'], index)
-        renderGroups(groups, ret['groups'], index)
-        lane['xg'] = int( math.ceil( float( xmax - lane['tgo'] ) / float(lane['xs'] ) ) ) * lane['xs']
-        width  = (lane['xg'] + lane['xs'] * (lane['xmax'] + 1) )
-        height = len(content) * lane['yo'] + lane['yh0'] + lane['yh1'] + lane['yf0'] + lane['yf1']
-        output[1]={
-            'id'         :'svgcontent_' + str(index),
-            'xmlns'      :"http://www.w3.org/2000/svg",
-            'xmlns:xlink':"http://www.w3.org/1999/xlink",
-            'width'      :str(width),
-            'height'     :str(height),
-            'viewBox'    :'0 0 ' + str(width) + ' ' + str(height),
-            'overflow'   :"hidden"
-        }
-        output[-1][2][1]['transform']='translate(' + str(lane['xg'] + 0.5) + ', ' + str((float(lane['yh0']) + float(lane['yh1'])) + 0.5) + ')'
-
-    output[-1][2].extend(root)
-    output[-1][3].extend(groups)
-
-def renderGroups (root, groups, index) :
-
-    svgns = 'http://www.w3.org/2000/svg',
-    xmlns = 'http://www.w3.org/XML/1998/namespace'
-
-    for i in range( len( groups ) ) :
-        group = [
-                'path',
-                {
-                    'id':    'group_' + str(i) + '_' + str(index),
-                    'd':     'm ' + str( groups[i]['x'] + 0.5 ) + ',' + str( groups[i]['y']* lane['yo'] + 3.5 + lane['yh0'] + lane['yh1'] ) + ' c -3,0 -5,2 -5,5 l 0,' + str( int( groups[i]['height'] * lane['yo'] - 16 ) ) + ' c 0,3 2,5 5,5',
-                    'style': 'stroke:#0041c4;stroke-width:1;fill:none'
-                }
-            ]
-        root.append(group)
-
-        name = groups[i]['name']
-        x = str( int( groups[i]['x'] - 10 ) )
-        y = str( int( lane['yo'] * (groups[i]['y'] + (float(groups[i]['height']) / 2)) + lane['yh0'] + lane['yh1'] ) )
-        label = [
-           ['g',
-               {'transform': 'translate(' + x + ',' + y + ')'},
-               ['g', {'transform': 'rotate(270)'},
-                   'text',
-                   {
-                       'text-anchor': 'middle',
-                       'class': 'info',
-                       'xml:space' : 'preserve'
-                   },
-                   ['tspan',name]
-               ]
-          ]
-        ]
-        root.append(label)
-
-def renderGaps (root, source, index) :
-
-    Stack = []
-    svgns   = 'http://www.w3.org/2000/svg',
-    xlinkns = 'http://www.w3.org/1999/xlink'
-
-    if source:
-
-        gg = [
-            'g',
-            { 'id': 'wavegaps_' + str(index) }
-        ]
-
-        for i in range( len( source )):
-            lane['period'] = source[i].get('period',1)
-            lane['phase']  = int( source[i].get('phase',0 ) * 2 )
-
-            g = [
-                'g',
-                {
-                    'id': 'wavegap_' + str(i) + '_' + str(index),
-                    'transform': 'translate(0,' + str(lane['y0'] + i * lane['yo']) + ')'
-                }
-            ]
-            gg.append(g)
-
-            if source[i].get('wave'):
-                text = source[i]['wave']
-                Stack = text
-                pos = 0
-                while len( Stack ) :
-                    c = Stack [0]
-                    Stack = Stack[1:]
-                    if c == '|' :
-                        b = [
-                           'use',
-                           {
-                               'xmlns:xlink':xlinkns,
-                               'xlink:href':'#gap',
-                               'transform': 'translate(' + str(int(float(lane['xs']) * ((2 * pos + 1) * float(lane['period']) * float(lane['hscale']) - float(lane['phase'])))) + ')'
-                           }
-                        ]
-                        g.append(b)
-                    pos += 1
-
-        root.append( gg )
-
-def is_type_str( var ) :
-    if sys.version_info[0] < 3:
-        return type( var ) is str or type( var ) is unicode
-    else:
-        return type( var ) is str
-
-def convert_to_svg( root ) :
-
-    svg_output = ''
-
-    if type( root ) is list:
-        if len(root) >= 2 and type( root[1] ) is dict:
-           if len( root ) == 2 :
-               svg_output += '<' + root[0] + convert_to_svg( root[1] ) + '/>\n'
-           elif len( root ) >= 3 :
-               svg_output += '<' + root[0] + convert_to_svg( root[1] ) + '>\n'
-               if len( root ) == 3:
-                   svg_output += convert_to_svg( root[2] )
-               else:
-                   svg_output += convert_to_svg( root[2:]  )
-               svg_output += '</' + root[0] + '>\n'
-        elif type( root[0] ) is list:
-           for eleml in root:
-               svg_output += convert_to_svg( eleml )
-        else:
-           svg_output += '<' + root[0] + '>\n'
-           for eleml in root[1:]:
-               svg_output += convert_to_svg( eleml )
-           svg_output += '</' + root[0] + '>\n'
-    elif type( root ) is dict:
-        for elemd in root :
-           svg_output += ' ' + elemd + '="' + str(root[elemd]) + '"'
-    else:
-        svg_output += root
-
-    return svg_output
-
-if __name__ == '__main__':
-
-    if len( sys.argv ) != 5:
-        print ( 'Usage : ' + sys.argv[0] + ' source <input.json> svg <output.svg>' )
-        exit(1)
-
-    if sys.argv[3] != 'svg' :
-        print ( 'Error: only SVG format supported.' )
-        exit(1)
-
-    output=[]
-    inputfile  = sys.argv[2]
-    outputfile = sys.argv[4]
-
-    with open(inputfile,'r') as f:
-       jinput = json.load(f)
-
-    renderWaveForm(0,jinput,output)
-    svg_output = convert_to_svg(output)
-
-    with open(outputfile,'w') as f:
-       f.write( svg_output )

compiler/debug.py

@@ -48,19 +48,37 @@ def print_raw(str):
 
 
 def log(str):
-    if log.create_file:
+    if globals.OPTS.output_name != '':
-        compile_log = open(globals.OPTS.output_path +
+        if log.create_file:
-                           globals.OPTS.output_name + '.log', "w")
+            # We may have not yet read the config, so we need to ensure
-        log.create_file = 0
+            # it ends with a /
+            # This is also done in read_config if we change the path
+            # FIXME: There's actually a bug here. The first few lines
+            # could be in one log file and after read_config it could be
+            # in another log file if the path or name changes.
+            if not globals.OPTS.output_path.endswith('/'):
+                globals.OPTS.output_path += "/"
+            compile_log = open(globals.OPTS.output_path +
+                               globals.OPTS.output_name + '.log', "w+")
+            log.create_file = 0
+        else:
+            compile_log = open(globals.OPTS.output_path +
+                               globals.OPTS.output_name + '.log', "a")
+
+        if len(log.setup_output) != 0:
+            for line in log.setup_output:
+                compile_log.write(line)
+            log.setup_output = []
+        compile_log.write(str + '\n')
     else:
-        compile_log = open(globals.OPTS.output_path +
+        log.setup_output.append(str + "\n")
-                           globals.OPTS.output_name + '.log', "a")
+
-    compile_log.write(str + '\n')
+
+# use a static list of strings to store messages until the global paths are set up
+log.setup_output = []
 log.create_file = 1
 
 
-
-
 def info(lev, str):
     from globals import OPTS
     if (OPTS.debug_level >= lev):
@@ -71,5 +89,5 @@ def info(lev, str):
             class_name = ""
         else:
             class_name = mod.__name__
-        print_raw("[{0}/{1}]: {2}".format(class_name, frm[0].f_code.co_name, str))
+        print_raw("[{0}/{1}]: {2}".format(class_name,
-
+                                          frm[0].f_code.co_name, str))

compiler/example_configs/example_config_1rw_1r_scn4m_subm.py

@@ -1,8 +1,6 @@
 word_size = 2
 num_words = 16
 
-bitcell = "bitcell_1rw_1r"
-replica_bitcell = "replica_bitcell_1rw_1r"
 num_rw_ports = 1
 num_r_ports = 1
 num_w_ports = 0

compiler/example_configs/example_config_1w_1r_scn4m_subm.py

@@ -0,0 +1,18 @@
+word_size = 2
+num_words = 16
+
+num_rw_ports = 1
+num_r_ports = 1
+num_w_ports = 0
+
+tech_name = "scn4m_subm"
+process_corners = ["TT"]
+supply_voltages = [5.0]
+temperatures = [25]
+
+output_path = "temp"
+output_name = "sram_1w_1r_{0}_{1}_{2}".format(word_size,num_words,tech_name)
+
+drc_name = "magic"
+lvs_name = "netgen"
+pex_name = "magic"

compiler/git_id

@@ -1 +0,0 @@
-468eb9a4a038201c2b0004fe6e4ae9b2d37fdd57

compiler/globals.py

@@ -133,6 +133,8 @@ def init_openram(config_file, is_unit_test=True):
     from sram_factory import factory
     factory.reset()
 
+    setup_bitcell()
+    
     # Reset the static duplicate name checker for unit tests.
     import hierarchy_design
     hierarchy_design.hierarchy_design.name_map=[]
@@ -157,6 +159,46 @@ def init_openram(config_file, is_unit_test=True):
     if not CHECKPOINT_OPTS:
         CHECKPOINT_OPTS = copy.copy(OPTS)
     
+def setup_bitcell():
+    """
+    Determine the correct custom or parameterized bitcell for the design.
+    """
+    global OPTS
+
+    # If we have non-1rw ports,
+    # and the user didn't over-ride the bitcell manually,
+    # figure out the right bitcell to use
+    if (OPTS.bitcell=="bitcell" and OPTS.replica_bitcell=="replica_bitcell"):
+        
+        if (OPTS.num_rw_ports==1 and OPTS.num_w_ports==0 and OPTS.num_r_ports==0):
+            OPTS.bitcell = "bitcell"
+            OPTS.replica_bitcell = "replica_bitcell"
+        else:
+            ports = ""
+            if OPTS.num_rw_ports>0:
+                ports += "{}rw_".format(OPTS.num_rw_ports)
+            if OPTS.num_w_ports>0:
+                ports += "{}w_".format(OPTS.num_w_ports)
+            if OPTS.num_r_ports>0:
+                ports += "{}r".format(OPTS.num_r_ports)
+
+            OPTS.bitcell = "bitcell_"+ports
+            OPTS.replica_bitcell = "replica_bitcell_"+ports
+
+        # See if a custom bitcell exists
+        from importlib import find_loader
+        bitcell_loader = find_loader(OPTS.bitcell)
+        replica_bitcell_loader = find_loader(OPTS.replica_bitcell)
+        # Use the pbitcell if we couldn't find a custom bitcell
+        # or its custom replica  bitcell
+        if bitcell_loader==None or replica_bitcell_loader==None:
+            # Use the pbitcell (and give a warning if not in unit test mode)
+            OPTS.bitcell = "pbitcell"
+            OPTS.replica_bitcell = "replica_pbitcell"
+            if not OPTS.is_unit_test:
+                debug.warning("Using the parameterized bitcell which may have suboptimal density.")
+                
+    debug.info(1,"Using bitcell: {}".format(OPTS.bitcell))    
 
 
 def get_tool(tool_type, preferences, default_name=None):
@@ -253,6 +295,7 @@ def read_config(config_file, is_unit_test=True):
 
         
 
+        
 def end_openram():
     """ Clean up openram for a proper exit """
     cleanup_paths()
@@ -417,7 +460,11 @@ def report_status():
         debug.error("Tech name must be specified in config file.")
 
     debug.print_raw("Technology: {0}".format(OPTS.tech_name))
-    debug.print_raw("Total size: {} bits".format(OPTS.word_size*OPTS.num_words*OPTS.num_banks))
+    total_size = OPTS.word_size*OPTS.num_words*OPTS.num_banks
+    debug.print_raw("Total size: {} bits".format(total_size))
+    if total_size>=2**14:
+        debug.warning("Requesting such a large memory size ({0}) will have a large run-time. ".format(total_size) +
+                      "Consider using multiple smaller banks.")
     debug.print_raw("Word size: {0}\nWords: {1}\nBanks: {2}".format(OPTS.word_size,
                                                           OPTS.num_words,
                                                           OPTS.num_banks))

compiler/modules/bank.py

@@ -1216,26 +1216,30 @@ class bank(design.design):
                             rotate=90)
 
         
-    def analytical_delay(self, vdd, slew, load):
+    def analytical_delay(self, corner, slew, load):
         """ return  analytical delay of the bank"""
         results = []
         
-        decoder_delay = self.row_decoder.analytical_delay(slew, self.wordline_driver.input_load())
+        decoder_delay = self.row_decoder.analytical_delay(corner, slew, self.wordline_driver.input_load())
 
-        word_driver_delay = self.wordline_driver.analytical_delay(decoder_delay.slew, self.bitcell_array.input_load())
+        word_driver_delay = self.wordline_driver.analytical_delay(corner, 
+                                                                  decoder_delay.slew, 
+                                                                  self.bitcell_array.input_load())
 
         #FIXME: Array delay is the same for every port.
-        bitcell_array_delay = self.bitcell_array.analytical_delay(word_driver_delay.slew)
+        bitcell_array_delay = self.bitcell_array.analytical_delay(corner, word_driver_delay.slew)
 
         #This also essentially creates the same delay for each port. Good structure, no substance
         for port in self.all_ports:
             if self.words_per_row > 1:
-                column_mux_delay = self.column_mux_array[port].analytical_delay(vdd, bitcell_array_delay.slew,
+                column_mux_delay = self.column_mux_array[port].analytical_delay(corner, 
-                                                                         self.sense_amp_array.input_load())
+                                                                                bitcell_array_delay.slew,
+                                                                                self.sense_amp_array.input_load())
             else:
                 column_mux_delay = self.return_delay(delay = 0.0, slew=word_driver_delay.slew)
                 
-            bl_t_data_out_delay = self.sense_amp_array.analytical_delay(column_mux_delay.slew,
+            bl_t_data_out_delay = self.sense_amp_array.analytical_delay(corner, 
+                                                                        column_mux_delay.slew,
                                                                         self.bitcell_array.output_load())
             # output load of bitcell_array is set to be only small part of bl for sense amp.
             results.append(decoder_delay + word_driver_delay + bitcell_array_delay + column_mux_delay + bl_t_data_out_delay) 

compiler/modules/bitcell_array.py

@@ -130,7 +130,7 @@ class bitcell_array(design.design):
                         self.add_power_pin(pin_name, pin.center(), 0, pin.layer)
                             
 
-    def analytical_delay(self, slew, load=0):
+    def analytical_delay(self, corner, slew, load=0):
         from tech import drc
         wl_wire = self.gen_wl_wire()
         wl_wire.return_delay_over_wire(slew)
@@ -141,25 +141,25 @@ class bitcell_array(design.design):
         cell_load = 2 * bl_wire.return_input_cap() # we ingore the wire r
                                                    # hence just use the whole c
         bl_swing = 0.1
-        cell_delay = self.cell.analytical_delay(wl_to_cell_delay.slew, cell_load, swing = bl_swing)
+        cell_delay = self.cell.analytical_delay(corner, wl_to_cell_delay.slew, cell_load, swing = bl_swing)
 
         #we do not consider the delay over the wire for now
         return self.return_delay(cell_delay.delay+wl_to_cell_delay.delay,
                                  wl_to_cell_delay.slew)
                         
-    def analytical_power(self, proc, vdd, temp, load):
+    def analytical_power(self, corner, load):
         """Power of Bitcell array and bitline in nW."""
-        from tech import drc
+        from tech import drc, parameter
         
         # Dynamic Power from Bitline
         bl_wire = self.gen_bl_wire()
         cell_load = 2 * bl_wire.return_input_cap() 
-        bl_swing = 0.1 #This should probably be defined in the tech file or input
+        bl_swing = parameter["rbl_height_percentage"]
         freq = spice["default_event_rate"]
-        bitline_dynamic = bl_swing*cell_load*vdd*vdd*freq #not sure if calculation is correct
+        bitline_dynamic = self.calc_dynamic_power(corner, cell_load, freq, swing=bl_swing)
         
         #Calculate the bitcell power which currently only includes leakage 
-        cell_power = self.cell.analytical_power(proc, vdd, temp, load)
+        cell_power = self.cell.analytical_power(corner, load)
         
         #Leakage power grows with entire array and bitlines.
         total_power = self.return_power(cell_power.dynamic + bitline_dynamic * self.column_size,

compiler/modules/control_logic.py

@@ -30,13 +30,15 @@ class control_logic(design.design):
         self.port_type = port_type
 
         self.num_cols = word_size*words_per_row
-        self.num_words = num_rows * words_per_row
+        self.num_words = num_rows*words_per_row
         
-        self.enable_delay_chain_resizing = False
+        self.enable_delay_chain_resizing = True
         
-        #self.sram=None #disable re-sizing for debugging, FIXME: resizing is not working, needs to be adjusted for new control logic.
+        #Determines how much larger the sen delay should be. Accounts for possible error in model.
-        self.wl_timing_tolerance = 1 #Determines how much larger the sen delay should be. Accounts for possible error in model.
+        self.wl_timing_tolerance = 1 
-        self.parasitic_inv_delay = parameter["min_inv_para_delay"] #Keeping 0 for now until further testing.
+        self.parasitic_inv_delay = parameter["min_inv_para_delay"] 
+        self.wl_stage_efforts = None
+        self.sen_stage_efforts = None
         
         if self.port_type == "rw":
             self.num_control_signals = 2
@@ -130,42 +132,60 @@ class control_logic(design.design):
         self.add_mod(self.p_en_bar_driver)
         
         if (self.port_type == "rw") or (self.port_type == "r"):
-            delay_stages_heuristic, delay_fanout_heuristic = self.get_heuristic_delay_chain_size()
+            from importlib import reload
-            bitcell_loads = int(math.ceil(self.num_rows / 2.0))
+            self.delay_chain_resized = False
-            self.replica_bitline = factory.create(module_type="replica_bitline",
+            c = reload(__import__(OPTS.replica_bitline))
-                                                  delay_fanout_list=[delay_fanout_heuristic]*delay_stages_heuristic,
+            replica_bitline = getattr(c, OPTS.replica_bitline)
-                                                  bitcell_loads=bitcell_loads)
+            bitcell_loads = int(math.ceil(self.num_rows * parameter["rbl_height_percentage"]))
-
+            #Use a model to determine the delays with that heuristic
-            
+            if OPTS.use_tech_delay_chain_size: #Use tech parameters if set.
-            if self.sram != None:
+                fanout_list = parameter["static_fanout_list"]
-                self.set_sen_wl_delays()
+                debug.info(1, "Using tech parameters to size delay chain: fanout_list={}".format(fanout_list))
-            
-            if self.sram != None and self.enable_delay_chain_resizing and not self.does_sen_total_timing_match(): #check condition based on resizing method
-                #This resizes to match fall and rise delays, can make the delay chain weird sizes.
-                # stage_list = self.get_dynamic_delay_fanout_list(delay_stages_heuristic, delay_fanout_heuristic)
-                # self.replica_bitline = replica_bitline(stage_list, bitcell_loads, name="replica_bitline_resized_"+self.port_type)
-                
-                #This resizes based on total delay. 
-                delay_stages, delay_fanout = self.get_dynamic_delay_chain_size(delay_stages_heuristic, delay_fanout_heuristic)
                 self.replica_bitline = factory.create(module_type="replica_bitline",
-                                                      delay_fanout_list=[delay_fanout]*delay_stages,
+                                                      delay_fanout_list=fanout_list,
                                                       bitcell_loads=bitcell_loads)
+                if self.sram != None: #Calculate model value even for specified sizes
+                    self.set_sen_wl_delays()
                 
-                self.sen_delay_rise,self.sen_delay_fall = self.get_delays_to_sen() #get the new timing
+            else: #Otherwise, use a heuristic and/or model based sizing.
+                #First use a heuristic
+                delay_stages_heuristic, delay_fanout_heuristic = self.get_heuristic_delay_chain_size()
+                self.replica_bitline = factory.create(module_type="replica_bitline",
+                                                      delay_fanout_list=[delay_fanout_heuristic]*delay_stages_heuristic,
+                                                      bitcell_loads=bitcell_loads)
+                #Resize if necessary, condition depends on resizing method
+                if self.sram != None and self.enable_delay_chain_resizing and not self.does_sen_rise_fall_timing_match(): 
+                    #This resizes to match fall and rise delays, can make the delay chain weird sizes.
+                    stage_list = self.get_dynamic_delay_fanout_list(delay_stages_heuristic, delay_fanout_heuristic)
+                    self.replica_bitline = factory.create(module_type="replica_bitline",
+                                                          delay_fanout_list=stage_list,
+                                                          bitcell_loads=bitcell_loads)
+                    
+                    #This resizes based on total delay. 
+                    # delay_stages, delay_fanout = self.get_dynamic_delay_chain_size(delay_stages_heuristic, delay_fanout_heuristic)
+                    # self.replica_bitline = factory.create(module_type="replica_bitline",
+                                                          # delay_fanout_list=[delay_fanout]*delay_stages,
+                                                          # bitcell_loads=bitcell_loads)
+                    
+                    self.sen_delay_rise,self.sen_delay_fall = self.get_delays_to_sen() #get the new timing
+                    self.delay_chain_resized = True
                 
             self.add_mod(self.replica_bitline)
 
     def get_heuristic_delay_chain_size(self):
         """Use a basic heuristic to determine the size of the delay chain used for the Sense Amp Enable """
-        # FIXME: These should be tuned according to the additional size parameters
+        #FIXME: The minimum was 2 fanout, now it will not pass DRC unless it is 3. Why?
-        delay_fanout = 3 # This can be anything >=2
+        delay_fanout = 3 # This can be anything >=3
-        # Delay stages Must be non-inverting
+        # Model poorly captures delay of the column mux. Be pessismistic for column mux
-        if self.words_per_row >= 4:
+        if self.words_per_row >= 2:
             delay_stages = 8
-        elif self.words_per_row == 2:
-            delay_stages = 6
         else:
-            delay_stages = 4
+            delay_stages = 2
+        
+        #Read ports have a shorter s_en delay. The model is not accurate enough to catch this difference
+        #on certain sram configs.
+        if self.port_type == "r":
+            delay_stages+=2
         
         return (delay_stages, delay_fanout)
         
@@ -227,14 +247,25 @@ class control_logic(design.design):
         required_delay_rise = self.wl_delay_rise*self.wl_timing_tolerance - (self.sen_delay_rise-previous_delay_chain_delay/2)
         debug.info(2,"Required delays from chain: fall={}, rise={}".format(required_delay_fall,required_delay_rise))
         
+        #If the fanout is different between rise/fall by this amount. Stage algorithm is made more pessimistic.
+        WARNING_FANOUT_DIFF = 5
+        stages_close = False
         #The stages need to be equal (or at least a even number of stages with matching rise/fall delays)
         while True:
             stages_fall = self.calculate_stages_with_fixed_fanout(required_delay_fall,fanout_fall)
             stages_rise = self.calculate_stages_with_fixed_fanout(required_delay_rise,fanout_rise)
             debug.info(1,"Fall stages={}, rise stages={}".format(stages_fall,stages_rise))
+            if abs(stages_fall-stages_rise) == 1 and not stages_close:
+                stages_close = True
+                safe_fanout_rise = fanout_rise
+                safe_fanout_fall = fanout_fall
+            
             if stages_fall == stages_rise: 
                 break
-            elif abs(stages_fall-stages_rise) == 1:
+            elif abs(stages_fall-stages_rise) == 1 and WARNING_FANOUT_DIFF < abs(fanout_fall-fanout_rise):
+                debug.info(1, "Delay chain fanouts between stages are large. Making chain size larger for safety.")
+                fanout_rise = safe_fanout_rise
+                fanout_fall = safe_fanout_fall
                 break
             #There should also be a condition to make sure the fanout does not get too large.    
             #Otherwise, increase the fanout of delay with the most stages, calculate new stages
@@ -819,8 +850,8 @@ class control_logic(design.design):
     def get_delays_to_wl(self):
         """Get the delay (in delay units) of the clk to a wordline in the bitcell array"""
         debug.check(self.sram.all_mods_except_control_done, "Cannot calculate sense amp enable delay unless all module have been added.")
-        stage_efforts = self.determine_wordline_stage_efforts()
+        self.wl_stage_efforts = self.determine_wordline_stage_efforts()
-        clk_to_wl_rise,clk_to_wl_fall = logical_effort.calculate_relative_rise_fall_delays(stage_efforts, self.parasitic_inv_delay)
+        clk_to_wl_rise,clk_to_wl_fall = logical_effort.calculate_relative_rise_fall_delays(self.wl_stage_efforts, self.parasitic_inv_delay)
         total_delay = clk_to_wl_rise + clk_to_wl_fall 
         debug.info(1, "Clock to wl delay is rise={:.3f}, fall={:.3f}, total={:.3f} in delay units".format(clk_to_wl_rise, clk_to_wl_fall,total_delay))
         return clk_to_wl_rise,clk_to_wl_fall 
@@ -849,8 +880,8 @@ class control_logic(design.design):
            This does not incorporate the delay of the replica bitline.
         """
         debug.check(self.sram.all_mods_except_control_done, "Cannot calculate sense amp enable delay unless all module have been added.")
-        stage_efforts = self.determine_sa_enable_stage_efforts()
+        self.sen_stage_efforts = self.determine_sa_enable_stage_efforts()
-        clk_to_sen_rise, clk_to_sen_fall = logical_effort.calculate_relative_rise_fall_delays(stage_efforts, self.parasitic_inv_delay)
+        clk_to_sen_rise, clk_to_sen_fall = logical_effort.calculate_relative_rise_fall_delays(self.sen_stage_efforts, self.parasitic_inv_delay)
         total_delay = clk_to_sen_rise + clk_to_sen_fall 
         debug.info(1, "Clock to s_en delay is rise={:.3f}, fall={:.3f}, total={:.3f} in delay units".format(clk_to_sen_rise, clk_to_sen_fall,total_delay))
         return clk_to_sen_rise, clk_to_sen_fall   
@@ -882,3 +913,11 @@ class control_logic(design.design):
         
         return stage_effort_list    
 
+    def get_wl_sen_delays(self):
+        """Gets a list of the stages and delays in order of their path."""
+        if self.sen_stage_efforts == None or self.wl_stage_efforts == None:
+            debug.error("Model delays not calculated for SRAM.", 1)
+        wl_delays = logical_effort.calculate_delays(self.wl_stage_efforts, self.parasitic_inv_delay)
+        sen_delays = logical_effort.calculate_delays(self.sen_stage_efforts, self.parasitic_inv_delay)
+        return wl_delays, sen_delays
+        

compiler/modules/dff.py

@@ -21,11 +21,11 @@ class dff(design.design):
         self.height = dff.height
         self.pin_map = dff.pin_map
     
-    def analytical_power(self, proc, vdd, temp, load):
+    def analytical_power(self, corner, load):
         """Returns dynamic and leakage power. Results in nW"""
         c_eff = self.calculate_effective_capacitance(load)
-        f = spice["default_event_rate"]
+        freq = spice["default_event_rate"]
-        power_dyn = c_eff*vdd*vdd*f
+        power_dyn = self.calc_dynamic_power(corner, c_eff, freq)
         power_leak = spice["msflop_leakage"]
         
         total_power = self.return_power(power_dyn, power_leak)
@@ -39,7 +39,7 @@ class dff(design.design):
         transition_prob = spice["flop_transition_prob"]
         return transition_prob*(c_load + c_para) 
 
-    def analytical_delay(self, slew, load = 0.0):
+    def analytical_delay(self, corner, slew, load = 0.0):
         # dont know how to calculate this now, use constant in tech file
         result = self.return_delay(spice["dff_delay"], spice["dff_slew"])
         return result

compiler/modules/dff_array.py

@@ -154,8 +154,8 @@ class dff_array(design.design):
             
         
 
-    def analytical_delay(self, slew, load=0.0):
+    def analytical_delay(self, corner, slew, load=0.0):
-        return self.dff.analytical_delay(slew=slew, load=load)
+        return self.dff.analytical_delay(corner, slew=slew, load=load)
 
     def get_clk_cin(self):
         """Return the total capacitance (in relative units) that the clock is loaded by in the dff array"""

compiler/modules/dff_buf.py

@@ -172,11 +172,11 @@ class dff_buf(design.design):
         
         
 
-    def analytical_delay(self, slew, load=0.0):
+    def analytical_delay(self, corner, slew, load=0.0):
         """ Calculate the analytical delay of DFF-> INV -> INV """
-        dff_delay=self.dff.analytical_delay(slew=slew, load=self.inv1.input_load())
+        dff_delay=self.dff.analytical_delay(corner, slew=slew, load=self.inv1.input_load())
-        inv1_delay = self.inv1.analytical_delay(slew=dff_delay.slew, load=self.inv2.input_load()) 
+        inv1_delay = self.inv1.analytical_delay(corner, slew=dff_delay.slew, load=self.inv2.input_load()) 
-        inv2_delay = self.inv2.analytical_delay(slew=inv1_delay.slew, load=load)
+        inv2_delay = self.inv2.analytical_delay(corner, slew=inv1_delay.slew, load=load)
         return dff_delay + inv1_delay + inv2_delay
             
     def get_clk_cin(self):

compiler/modules/dff_buf_array.py

@@ -187,7 +187,7 @@ class dff_buf_array(design.design):
                 
         
 
-    def analytical_delay(self, slew, load=0.0):
+    def analytical_delay(self, corner, slew, load=0.0):
         return self.dff.analytical_delay(slew=slew, load=load)
 
     def get_clk_cin(self):

compiler/modules/dff_inv.py

@@ -145,10 +145,10 @@ class dff_inv(design.design):
         
         
 
-    def analytical_delay(self, slew, load=0.0):
+    def analytical_delay(self, corner, slew, load=0.0):
         """ Calculate the analytical delay of DFF-> INV -> INV """
-        dff_delay=self.dff.analytical_delay(slew=slew, load=self.inv1.input_load())
+        dff_delay=self.dff.analytical_delay(corner, slew=slew, load=self.inv1.input_load())
-        inv1_delay = self.inv1.analytical_delay(slew=dff_delay.slew, load=load) 
+        inv1_delay = self.inv1.analytical_delay(corner, slew=dff_delay.slew, load=load) 
         return dff_delay + inv1_delay 
             
     def get_clk_cin(self):

compiler/modules/dff_inv_array.py

@@ -185,8 +185,8 @@ class dff_inv_array(design.design):
                 
         
 
-    def analytical_delay(self, slew, load=0.0):
+    def analytical_delay(self, corner, slew, load=0.0):
-        return self.dff.analytical_delay(slew=slew, load=load)
+        return self.dff.analytical_delay(corner, slew=slew, load=load)
 
     def get_clk_cin(self):
         """Return the total capacitance (in relative units) that the clock is loaded by in the dff array"""

compiler/modules/hierarchical_decoder.py

@@ -594,7 +594,7 @@ class hierarchical_decoder(design.design):
                             rotate=90)
 
         
-    def analytical_delay(self, slew, load = 0.0):
+    def analytical_delay(self, corner, slew, load = 0.0):
         # A -> out
         if self.determine_predecodes(self.num_inputs)[1]==0:
             pre = self.pre2_4
@@ -602,15 +602,15 @@ class hierarchical_decoder(design.design):
         else:
             pre = self.pre3_8
             nand = self.nand3
-        a_t_out_delay = pre.analytical_delay(slew=slew,load = nand.input_load())
+        a_t_out_delay = pre.analytical_delay(corner, slew=slew,load = nand.input_load())
 
         # out -> z
-        out_t_z_delay = nand.analytical_delay(slew= a_t_out_delay.slew,
+        out_t_z_delay = nand.analytical_delay(corner, slew= a_t_out_delay.slew,
                                   load = self.inv.input_load())
         result = a_t_out_delay + out_t_z_delay
 
         # Z -> decode_out
-        z_t_decodeout_delay = self.inv.analytical_delay(slew = out_t_z_delay.slew , load = load)
+        z_t_decodeout_delay = self.inv.analytical_delay(corner, slew = out_t_z_delay.slew , load = load)
         result = result + z_t_decodeout_delay
         return result
 

compiler/modules/hierarchical_predecode2x4.py

@@ -51,15 +51,15 @@ class hierarchical_predecode2x4(hierarchical_predecode):
         return combination 
 
 
-    def analytical_delay(self, slew, load = 0.0 ):
+    def analytical_delay(self, corner, slew, load = 0.0 ):
         # in -> inbar
-        a_t_b_delay = self.inv.analytical_delay(slew=slew, load=self.nand.input_load())
+        a_t_b_delay = self.inv.analytical_delay(corner, slew=slew, load=self.nand.input_load())
 
         # inbar -> z
-        b_t_z_delay = self.nand.analytical_delay(slew=a_t_b_delay.slew, load=self.inv.input_load())
+        b_t_z_delay = self.nand.analytical_delay(corner, slew=a_t_b_delay.slew, load=self.inv.input_load())
 
         # Z -> out
-        a_t_out_delay = self.inv.analytical_delay(slew=b_t_z_delay.slew, load=load)
+        a_t_out_delay = self.inv.analytical_delay(corner, slew=b_t_z_delay.slew, load=load)
 
         return a_t_b_delay + b_t_z_delay + a_t_out_delay
 

compiler/modules/hierarchical_predecode3x8.py

@@ -60,15 +60,15 @@ class hierarchical_predecode3x8(hierarchical_predecode):
         return combination
 
 
-    def analytical_delay(self, slew, load = 0.0 ):
+    def analytical_delay(self, corner, slew, load = 0.0 ):
         # A -> Abar
-        a_t_b_delay = self.inv.analytical_delay(slew=slew, load=self.nand.input_load())
+        a_t_b_delay = self.inv.analytical_delay(corner, slew=slew, load=self.nand.input_load())
 
         # Abar -> z
-        b_t_z_delay = self.nand.analytical_delay(slew=a_t_b_delay.slew, load=self.inv.input_load())
+        b_t_z_delay = self.nand.analytical_delay(corner, slew=a_t_b_delay.slew, load=self.inv.input_load())
 
         # Z -> out
-        a_t_out_delay = self.inv.analytical_delay(slew=b_t_z_delay.slew, load=load)
+        a_t_out_delay = self.inv.analytical_delay(corner, slew=b_t_z_delay.slew, load=load)
 
         return a_t_b_delay + b_t_z_delay + a_t_out_delay
 

compiler/modules/multibank.py

@@ -816,19 +816,19 @@ class multibank(design.design):
                      offset=in_pin + self.m2m3_via_offset,
                      rotate=90)
         
-    def analytical_delay(self, slew, load):
+    def analytical_delay(self, corner, slew, load):
         """ return  analytical delay of the bank"""
-        decoder_delay = self.row_decoder.analytical_delay(slew, self.wordline_driver.input_load())
+        decoder_delay = self.row_decoder.analytical_delay(corner, slew, self.wordline_driver.input_load())
 
-        word_driver_delay = self.wordline_driver.analytical_delay(decoder_delay.slew, self.bitcell_array.input_load())
+        word_driver_delay = self.wordline_driver.analytical_delay(corner, decoder_delay.slew, self.bitcell_array.input_load())
 
-        bitcell_array_delay = self.bitcell_array.analytical_delay(word_driver_delay.slew)
+        bitcell_array_delay = self.bitcell_array.analytical_delay(corner, word_driver_delay.slew)
 
-        bl_t_data_out_delay = self.sense_amp_array.analytical_delay(bitcell_array_delay.slew,
+        bl_t_data_out_delay = self.sense_amp_array.analytical_delay(corner, bitcell_array_delay.slew,
                                                                     self.bitcell_array.output_load())
         # output load of bitcell_array is set to be only small part of bl for sense amp.
 
-        data_t_DATA_delay = self.tri_gate_array.analytical_delay(bl_t_data_out_delay.slew, load)
+        data_t_DATA_delay = self.tri_gate_array.analytical_delay(corner, bl_t_data_out_delay.slew, load)
 
         result = decoder_delay + word_driver_delay + bitcell_array_delay + bl_t_data_out_delay + data_t_DATA_delay
         return result

compiler/modules/sense_amp.py

@@ -31,14 +31,14 @@ class sense_amp(design.design):
         bitline_pmos_size = 8 #FIXME: This should be set somewhere and referenced. Probably in tech file.
         return spice["min_tx_drain_c"]*(bitline_pmos_size/parameter["min_tx_size"])#ff   
         
-    def analytical_delay(self, slew, load=0.0):
+    def analytical_delay(self, corner, slew, load=0.0):
         from tech import spice
         r = spice["min_tx_r"]/(10)
         c_para = spice["min_tx_drain_c"]
-        result = self.cal_delay_with_rc(r = r, c =  c_para+load, slew = slew)
+        result = self.cal_delay_with_rc(corner, r = r, c =  c_para+load, slew = slew)
         return self.return_delay(result.delay, result.slew)
 
-    def analytical_power(self, proc, vdd, temp, load):
+    def analytical_power(self, corner, load):
         """Returns dynamic and leakage power. Results in nW"""
         #Power in this module currently not defined. Returns 0 nW (leakage and dynamic).
         total_power = self.return_power()
@@ -48,4 +48,5 @@ class sense_amp(design.design):
         """Get the relative capacitance of sense amp enable gate cin"""
         pmos_cin = parameter["sa_en_pmos_size"]/drc("minwidth_tx")
         nmos_cin = parameter["sa_en_nmos_size"]/drc("minwidth_tx")
+        #sen is connected to 2 pmos isolation TX and 1 nmos per sense amp.
         return 2*pmos_cin + nmos_cin

compiler/modules/sense_amp_array.py

@@ -136,10 +136,10 @@ class sense_amp_array(design.design):
     def input_load(self):
         return self.amp.input_load()
     
-    def analytical_delay(self, slew, load=0.0):
+    def analytical_delay(self, corner, slew, load=0.0):
-        return self.amp.analytical_delay(slew=slew, load=load)
+        return self.amp.analytical_delay(corner, slew=slew, load=load)
         
     def get_en_cin(self):
         """Get the relative capacitance of all the sense amp enable connections in the array"""
         sense_amp_en_cin = self.amp.get_en_cin()
-        return sense_amp_en_cin * self.words_per_row
+        return sense_amp_en_cin * self.word_size

compiler/modules/single_level_column_mux_array.py

@@ -216,13 +216,14 @@ class single_level_column_mux_array(design.design):
                              offset= br_out_offset,
                              rotate=90)
 
-    def analytical_delay(self, vdd, slew, load=0.0):
+    def analytical_delay(self, corner, vdd, slew, load=0.0):
         from tech import spice, parameter
+        proc,vdd,temp = corner
         r = spice["min_tx_r"]/(self.mux.ptx_width/parameter["min_tx_size"])
         #Drains of mux transistors make up capacitance. 
         c_para = spice["min_tx_drain_c"]*(self.mux.ptx_width/parameter["min_tx_size"])*self.words_per_row#ff
         volt_swing = spice["v_threshold_typical"]/vdd
         
-        result = self.cal_delay_with_rc(r = r, c =  c_para+load, slew = slew, swing = volt_swing)
+        result = self.cal_delay_with_rc(corner, r = r, c =  c_para+load, slew = slew, swing = volt_swing)
         return self.return_delay(result.delay, result.slew)            
             

compiler/modules/tri_gate.py

@@ -27,13 +27,13 @@ class tri_gate(design.design):
         self.height = tri_gate.height
         self.pin_map = tri_gate.pin_map
 
-    def analytical_delay(self, slew, load=0.0):
+    def analytical_delay(self, corner, slew, load=0.0):
         from tech import spice
         r = spice["min_tx_r"]
         c_para = spice["min_tx_drain_c"]
-        return self.cal_delay_with_rc(r = r, c =  c_para+load, slew = slew)
+        return self.cal_delay_with_rc(corner, r = r, c =  c_para+load, slew = slew)
         
-    def analytical_power(self, proc, vdd, temp, load):
+    def analytical_power(self, corner, load):
         """Returns dynamic and leakage power. Results in nW"""
         #Power in this module currently not defined. Returns 0 nW (leakage and dynamic).
         total_power = self.return_power() 

compiler/modules/tri_gate_array.py

@@ -116,6 +116,6 @@ class tri_gate_array(design.design):
         
 
 
-    def analytical_delay(self, slew, load=0.0):
+    def analytical_delay(self, corner, slew, load=0.0):
-        return self.tri.analytical_delay(slew = slew, load = load)
+        return self.tri.analytical_delay(corner, slew = slew, load = load)
         

compiler/modules/wordline_driver.py

@@ -210,12 +210,12 @@ class wordline_driver(design.design):
                                                end=wl_offset-vector(self.m1_width,0))
 
 
-    def analytical_delay(self, slew, load=0):
+    def analytical_delay(self, corner, slew, load=0):
         # decode -> net
-        decode_t_net = self.nand2.analytical_delay(slew, self.inv.input_load())
+        decode_t_net = self.nand2.analytical_delay(corner, slew, self.inv.input_load())
 
         # net -> wl
-        net_t_wl = self.inv.analytical_delay(decode_t_net.slew, load)
+        net_t_wl = self.inv.analytical_delay(corner, decode_t_net.slew, load)
 
         return decode_t_net + net_t_wl
 

compiler/options.py

@@ -71,6 +71,9 @@ class options(optparse.Values):
     # You can manually specify banks, but it is better to auto-detect it.
     num_banks = 1
     
+    #Uses the delay chain size in the tech.py file rather automatic sizing.
+    use_tech_delay_chain_size = False
+    
     # These are the default modules that can be over-riden
     bank_select = "bank_select"
     bitcell_array = "bitcell_array"

compiler/pgates/pand2.py

@@ -107,10 +107,10 @@ class pand2(pgate.pgate):
         
         
 
-    def analytical_delay(self, slew, load=0.0):
+    def analytical_delay(self, corner, slew, load=0.0):
         """ Calculate the analytical delay of DFF-> INV -> INV """
-        nand_delay = selfnand.analytical_delay(slew=slew, load=self.inv.input_load()) 
+        nand_delay = self.nand.analytical_delay(corner, slew=slew, load=self.inv.input_load()) 
-        inv_delay = self.inv.analytical_delay(slew=nand_delay.slew, load=load)
+        inv_delay = self.inv.analytical_delay(corner, slew=nand_delay.slew, load=load)
         return nand_delay + inv_delay
     
     def get_stage_efforts(self, external_cout, inp_is_rise=False):

compiler/pgates/pbuf.py

@@ -110,10 +110,10 @@ class pbuf(pgate.pgate):
         
         
 
-    def analytical_delay(self, slew, load=0.0):
+    def analytical_delay(self, corner, slew, load=0.0):
         """ Calculate the analytical delay of DFF-> INV -> INV """
-        inv1_delay = self.inv1.analytical_delay(slew=slew, load=self.inv2.input_load()) 
+        inv1_delay = self.inv1.analytical_delay(corner, slew=slew, load=self.inv2.input_load()) 
-        inv2_delay = self.inv2.analytical_delay(slew=inv1_delay.slew, load=load)
+        inv2_delay = self.inv2.analytical_delay(corner, slew=inv1_delay.slew, load=load)
         return inv1_delay + inv2_delay
     
     def get_stage_efforts(self, external_cout, inp_is_rise=False):

compiler/pgates/pdriver.py

@@ -172,7 +172,7 @@ class pdriver(pgate.pgate):
     def input_load(self):
         return self.inv_list[0].input_load()
 
-    def analytical_delay(self, slew, load=0.0):
+    def analytical_delay(self, corner, slew, load=0.0):
         """Calculate the analytical delay of INV1 -> ... -> INVn"""
 
         cout_list = []
@@ -184,7 +184,7 @@ class pdriver(pgate.pgate):
         
         delays = []
         for inv,cout in zip(self.inv_list,cout_list):
-            delays.append(inv.analytical_delay(slew=input_slew, load=cout))
+            delays.append(inv.analytical_delay(corner, slew=input_slew, load=cout))
             input_slew = delays[-1].slew
 
         delay = delays[0]
@@ -196,17 +196,16 @@ class pdriver(pgate.pgate):
 
     def get_stage_efforts(self, external_cout, inp_is_rise=False):
         """Get the stage efforts of the A -> Z path"""
-
+        cout_list = []
-        cout_list = {}
         for prev_inv,inv in zip(self.inv_list, self.inv_list[1:]):
-            cout_list[prev_inv]=inv.get_cin()
+            cout_list.append(inv.get_cin())
         
-        cout_list[self.inv_list[-1]]=external_cout
+        cout_list.append(external_cout)
         
         stage_effort_list = []
         last_inp_is_rise = inp_is_rise
-        for inv in self.inv_list:
+        for inv,cout in zip(self.inv_list,cout_list):
-            stage = inv.get_stage_effort(cout_list[inv], last_inp_is_rise)
+            stage = inv.get_stage_effort(cout, last_inp_is_rise)
             stage_effort_list.append(stage)
             last_inp_is_rise = stage.is_rise
             

compiler/pgates/pinv.py

@@ -261,16 +261,16 @@ class pinv(pgate.pgate):
     def input_load(self):
         return ((self.nmos_size+self.pmos_size)/parameter["min_tx_size"])*spice["min_tx_gate_c"]
 
-    def analytical_delay(self, slew, load=0.0):
+    def analytical_delay(self, corner, slew, load=0.0):
         r = spice["min_tx_r"]/(self.nmos_size/parameter["min_tx_size"])
         c_para = spice["min_tx_drain_c"]*(self.nmos_size/parameter["min_tx_size"])#ff
-        return self.cal_delay_with_rc(r = r, c =  c_para+load, slew = slew)
+        return self.cal_delay_with_rc(corner, r = r, c =  c_para+load, slew = slew)
         
-    def analytical_power(self, proc, vdd, temp, load):
+    def analytical_power(self, corner, load):
         """Returns dynamic and leakage power. Results in nW"""
         c_eff = self.calculate_effective_capacitance(load)
         freq = spice["default_event_rate"]
-        power_dyn = c_eff*vdd*vdd*freq
+        power_dyn = self.calc_dynamic_power(corner, c_eff, freq)
         power_leak = spice["inv_leakage"]
         
         total_power = self.return_power(power_dyn, power_leak)
@@ -292,4 +292,4 @@ class pinv(pgate.pgate):
            Optional is_rise refers to the input direction rise/fall. Input inverted by this stage.
         """
         parasitic_delay = 1 
-        return logical_effort.logical_effort(self.size, self.get_cin(), cout, parasitic_delay, not inp_is_rise)
+        return logical_effort.logical_effort(self.name, self.size, self.get_cin(), cout, parasitic_delay, not inp_is_rise)

compiler/pgates/pinvbuf.py

@@ -177,10 +177,10 @@ class pinvbuf(design.design):
         
         
 
-    def analytical_delay(self, slew, load=0.0):
+    def analytical_delay(self, corner, slew, load=0.0):
         """ Calculate the analytical delay of DFF-> INV -> INV """
-        inv1_delay = self.inv1.analytical_delay(slew=slew, load=self.inv2.input_load()) 
+        inv1_delay = self.inv1.analytical_delay(corner, slew=slew, load=self.inv2.input_load()) 
-        inv2_delay = self.inv2.analytical_delay(slew=inv1_delay.slew, load=load)
+        inv2_delay = self.inv2.analytical_delay(corner, slew=inv1_delay.slew, load=load)
         return inv1_delay + inv2_delay
             
     def determine_clk_buf_stage_efforts(self, external_cout, inp_is_rise=False):

compiler/pgates/pnand2.py

@@ -227,16 +227,16 @@ class pnand2(pgate.pgate):
     def input_load(self):
         return ((self.nmos_size+self.pmos_size)/parameter["min_tx_size"])*spice["min_tx_gate_c"]
 
-    def analytical_delay(self, slew, load=0.0):
+    def analytical_delay(self, corner, slew, load=0.0):
         r = spice["min_tx_r"]/(self.nmos_size/parameter["min_tx_size"])
         c_para = spice["min_tx_drain_c"]*(self.nmos_size/parameter["min_tx_size"])#ff
-        return self.cal_delay_with_rc(r = r, c =  c_para+load, slew = slew)
+        return self.cal_delay_with_rc(corner, r = r, c =  c_para+load, slew = slew)
         
-    def analytical_power(self, proc, vdd, temp, load):
+    def analytical_power(self, corner, load):
         """Returns dynamic and leakage power. Results in nW"""
         c_eff = self.calculate_effective_capacitance(load)
         freq = spice["default_event_rate"]
-        power_dyn = c_eff*vdd*vdd*freq
+        power_dyn = self.calc_dynamic_power(corner, c_eff, freq)
         power_leak = spice["nand2_leakage"]
         
         total_power = self.return_power(power_dyn, power_leak)
@@ -258,4 +258,4 @@ class pnand2(pgate.pgate):
            Optional is_rise refers to the input direction rise/fall. Input inverted by this stage.
         """
         parasitic_delay = 2 
-        return logical_effort.logical_effort(self.size, self.get_cin(), cout, parasitic_delay, not inp_is_rise)
+        return logical_effort.logical_effort(self.name, self.size, self.get_cin(), cout, parasitic_delay, not inp_is_rise)

compiler/pgates/pnand3.py

@@ -4,6 +4,7 @@ import debug
 from tech import drc, parameter, spice
 from vector import vector
 from globals import OPTS
+import logical_effort
 from sram_factory import factory
 
 class pnand3(pgate.pgate):
@@ -239,16 +240,16 @@ class pnand3(pgate.pgate):
     def input_load(self):
         return ((self.nmos_size+self.pmos_size)/parameter["min_tx_size"])*spice["min_tx_gate_c"]
 
-    def analytical_delay(self, slew, load=0.0):
+    def analytical_delay(self, corner, slew, load=0.0):
         r = spice["min_tx_r"]/(self.nmos_size/parameter["min_tx_size"])
         c_para = spice["min_tx_drain_c"]*(self.nmos_size/parameter["min_tx_size"])#ff
-        return self.cal_delay_with_rc(r = r, c =  c_para+load, slew = slew)
+        return self.cal_delay_with_rc(corner, r = r, c =  c_para+load, slew = slew)
         
-    def analytical_power(self, proc, vdd, temp, load):
+    def analytical_power(self, corner, load):
         """Returns dynamic and leakage power. Results in nW"""
         c_eff = self.calculate_effective_capacitance(load)
         freq = spice["default_event_rate"]
-        power_dyn = c_eff*vdd*vdd*freq
+        power_dyn = self.calc_dynamic_power(corner, c_eff, freq)
         power_leak = spice["nand3_leakage"]
         
         total_power = self.return_power(power_dyn, power_leak)
@@ -270,4 +271,4 @@ class pnand3(pgate.pgate):
            Optional is_rise refers to the input direction rise/fall. Input inverted by this stage.
         """
         parasitic_delay = 3 
-        return logical_effort.logical_effort(self.size, self.get_cin(), cout, parasitic_delay, not inp_is_rise)
+        return logical_effort.logical_effort(self.name, self.size, self.get_cin(), cout, parasitic_delay, not inp_is_rise)

compiler/pgates/pnor2.py

@@ -212,16 +212,16 @@ class pnor2(pgate.pgate):
     def input_load(self):
         return ((self.nmos_size+self.pmos_size)/parameter["min_tx_size"])*spice["min_tx_gate_c"]
 
-    def analytical_delay(self, slew, load=0.0):
+    def analytical_delay(self, corner, slew, load=0.0):
         r = spice["min_tx_r"]/(self.nmos_size/parameter["min_tx_size"])
         c_para = spice["min_tx_drain_c"]*(self.nmos_size/parameter["min_tx_size"])#ff
-        return self.cal_delay_with_rc(r = r, c =  c_para+load, slew = slew)
+        return self.cal_delay_with_rc(corner, r = r, c =  c_para+load, slew = slew)
         
-    def analytical_power(self, proc, vdd, temp, load):
+    def analytical_power(self, corner, load):
         """Returns dynamic and leakage power. Results in nW"""
         c_eff = self.calculate_effective_capacitance(load)
         freq = spice["default_event_rate"]
-        power_dyn = c_eff*vdd*vdd*freq
+        power_dyn = self.calc_dynamic_power(corner, c_eff, freq)
         power_leak = spice["nor2_leakage"]
         
         total_power = self.return_power(power_dyn, power_leak)

compiler/profile_stats.py

@@ -1,5 +0,0 @@
-import pstats
-p = pstats.Stats('profile.dat')
-p.strip_dirs()
-p.sort_stats('cumulative')
-p.print_stats(50)

compiler/sram_base.py

@@ -499,9 +499,9 @@ class sram_base(design, verilog, lef):
         sp.close()
 
         
-    def analytical_delay(self, vdd, slew,load):
+    def analytical_delay(self, corner, slew,load):
         """ LH and HL are the same in analytical model. """
-        return self.bank.analytical_delay(vdd,slew,load)
+        return self.bank.analytical_delay(corner,slew,load)
         
     def determine_wordline_stage_efforts(self, inp_is_rise=True):
         """Get the all the stage efforts for each stage in the path from clk_buf to a wordline"""

compiler/sram_config.py

@@ -7,13 +7,13 @@ from sram_factory import factory
 class sram_config:
     """ This is a structure that is used to hold the SRAM configuration options. """
     
-    def __init__(self, word_size, num_words, num_banks=1):
+    def __init__(self, word_size, num_words, num_banks=1, words_per_row=None):
         self.word_size = word_size
         self.num_words = num_words
         self.num_banks = num_banks
 
         # This will get over-written when we determine the organization
-        self.words_per_row = None
+        self.words_per_row = words_per_row
 
         self.compute_sizes()
         

compiler/tests/16_control_logic_test.py

@@ -36,17 +36,21 @@ class control_logic_test(openram_test):
         
         # Check port specific control logic
         OPTS.num_rw_ports = 1
-        OPTS.num_w_ports = 1
+        OPTS.num_w_ports = 0
-        OPTS.num_r_ports = 1
+        OPTS.num_r_ports = 0
 
         debug.info(1, "Testing sample for control_logic for multiport, only write control logic")
         a = control_logic.control_logic(num_rows=128, words_per_row=1, word_size=8, port_type="rw")
         self.local_check(a)
         
+        OPTS.num_rw_ports = 0
+        OPTS.num_w_ports = 1
         debug.info(1, "Testing sample for control_logic for multiport, only write control logic")
         a = control_logic.control_logic(num_rows=128, words_per_row=1, word_size=8, port_type="w")
         self.local_check(a)
         
+        OPTS.num_w_ports = 0
+        OPTS.num_r_ports = 1
         debug.info(1, "Testing sample for control_logic for multiport, only read control logic")
         a = control_logic.control_logic(num_rows=128, words_per_row=1, word_size=8, port_type="r")
         self.local_check(a)

compiler/tests/20_sram_1bank_2mux_1w_1r_test.py

@@ -0,0 +1,51 @@
+#!/usr/bin/env python3
+"""
+Run a regression test on a 1 bank SRAM
+"""
+
+import unittest
+from testutils import header,openram_test
+import sys,os
+sys.path.append(os.path.join(sys.path[0],".."))
+import globals
+from globals import OPTS
+import debug
+
+#@unittest.skip("SKIPPING 20_psram_1bank_2mux_1w_1r_test, odd supply routing error")
+class psram_1bank_2mux_1w_1r_test(openram_test):
+
+    def runTest(self):        
+        globals.init_openram("config_20_{0}".format(OPTS.tech_name))
+        from sram import sram
+        from sram_config import sram_config
+        OPTS.bitcell = "bitcell_1w_1r"
+        OPTS.replica_bitcell="replica_bitcell_1w_1r"
+        
+        OPTS.num_rw_ports = 0
+        OPTS.num_w_ports = 1
+        OPTS.num_r_ports = 1
+        
+        c = sram_config(word_size=4,
+                        num_words=32,
+                        num_banks=1)
+        c.num_words=32
+        c.words_per_row=2
+        c.recompute_sizes()
+        debug.info(1, "Layout test for {}rw,{}r,{}w psram with {} bit words, {} words, {} words per row, {} banks".format(OPTS.num_rw_ports,
+                                                                                                                          OPTS.num_r_ports,
+                                                                                                                          OPTS.num_w_ports,
+                                                                                                                          c.word_size,
+                                                                                                                          c.num_words,
+                                                                                                                          c.words_per_row,
+                                                                                                                          c.num_banks))
+        a = sram(c, "sram")
+        self.local_check(a, final_verification=True)
+        
+        globals.end_openram()
+        
+# run the test from the command line
+if __name__ == "__main__":
+    (OPTS, args) = globals.parse_args()
+    del sys.argv[1:]
+    header(__file__, OPTS.tech_name)
+    unittest.main()

compiler/tests/21_hspice_delay_test.py

@@ -23,7 +23,7 @@ class timing_sram_test(openram_test):
         from importlib import reload
         import characterizer
         reload(characterizer)
-        from characterizer import delay, bitline_delay
+        from characterizer import delay
         from sram import sram
         from sram_config import sram_config
         c = sram_config(word_size=1,
@@ -43,37 +43,44 @@ class timing_sram_test(openram_test):
 
         corner = (OPTS.process_corners[0], OPTS.supply_voltages[0], OPTS.temperatures[0])
         d = delay(s.s, tempspice, corner)
-        bl = bitline_delay(s.s, tempspice, corner)
         import tech
         loads = [tech.spice["msflop_in_cap"]*4]
         slews = [tech.spice["rise_time"]*2]
         data, port_data = d.analyze(probe_address, probe_data, slews, loads)
-        #bitline_swing = bl.analyze(probe_address, probe_data, slews, loads)
         #Combine info about port into all data
         data.update(port_data[0])
      
         if OPTS.tech_name == "freepdk45":
-            golden_data = {'delay_hl': [0.2152017],
+            golden_data = {'delay_bl': [0.1980959],
-                           'delay_lh': [0.2152017],
+                         'delay_br': [0.1946091],
-                           'leakage_power': 0.0022907,
+                         'delay_hl': [0.2121267],
-                           'min_period': 0.488,
+                         'delay_lh': [0.2121267],
-                           'read0_power': [0.47437749999999995],
+                         'leakage_power': 0.0023761999999999998,
-                           'read1_power': [0.45026109999999997],
+                         'min_period': 0.43,
-                           'slew_hl': [0.0846786],
+                         'read0_power': [0.5139368],
-                           'slew_lh': [0.0846786],
+                         'read1_power': [0.48940979999999995],
-                           'write0_power': [0.40809259999999997],
+                         'slew_hl': [0.0516745],
-                           'write1_power': [0.4078904]}
+                         'slew_lh': [0.0516745],
+                         'volt_bl': [0.5374525],
+                         'volt_br': [1.1058],
+                         'write0_power': [0.46267169999999996],
+                         'write1_power': [0.4670826]}
         elif OPTS.tech_name == "scn4m_subm":
-            golden_data = {'delay_hl': [1.4333000000000002],
+            golden_data = {'delay_bl': [1.1029],
-                           'delay_lh': [1.4333000000000002],
+                         'delay_br': [0.9656455999999999],
-                           'leakage_power': 0.0271847,
+                         'delay_hl': [1.288],
-                           'min_period': 2.891,
+                         'delay_lh': [1.288],
-                           'read0_power': [15.714200000000002],
+                         'leakage_power': 0.0273896,
-                           'read1_power': [14.9848],
+                         'min_period': 2.578,
-                           'slew_hl': [0.6819276999999999],
+                         'read0_power': [16.9996],
-                           'slew_lh': [0.6819276999999999],
+                         'read1_power': [16.2616],
-                           'write0_power': [13.9658],
+                         'slew_hl': [0.47891700000000004],
-                           'write1_power': [14.8422]}
+                         'slew_lh': [0.47891700000000004],
+                         'volt_bl': [4.2155],
+                         'volt_br': [5.8142],
+                         'write0_power': [16.0656],
+                         'write1_power': [16.2616]}
+
         else:
             self.assertTrue(False) # other techs fail
         # Check if no too many or too few results

compiler/tests/21_ngspice_delay_test.py

@@ -51,27 +51,36 @@ class timing_sram_test(openram_test):
         data.update(port_data[0])
 
         if OPTS.tech_name == "freepdk45":
-            golden_data = {'delay_hl': [0.221699],
+            golden_data = {'delay_bl': [0.2003652],
-                           'delay_lh': [0.221699],
+                         'delay_br': [0.198698],
-                           'leakage_power': 0.001467648,
+                         'delay_hl': [0.2108836],
-                           'min_period': 0.605,
+                         'delay_lh': [0.2108836],
-                           'read0_power': [0.3879335],
+                         'leakage_power': 0.001564799,
-                           'read1_power': [0.3662724],
+                         'min_period': 0.508,
-                           'slew_hl': [0.08562444999999999],
+                         'read0_power': [0.43916689999999997],
-                           'slew_lh': [0.08562444999999999],
+                         'read1_power': [0.4198608],
-                           'write0_power': [0.3362456],
+                         'slew_hl': [0.0455126],
-                           'write1_power': [0.3372035]}
+                         'slew_lh': [0.0455126],
+                         'volt_bl': [0.6472883],
+                         'volt_br': [1.114024],
+                         'write0_power': [0.40681890000000004],
+                         'write1_power': [0.4198608]}
         elif OPTS.tech_name == "scn4m_subm":
-            golden_data = {'delay_hl': [1.7951730000000001],
+            golden_data = {'delay_bl': [1.3937359999999999],
-                           'delay_lh': [1.7951730000000001],
+                         'delay_br': [1.2596429999999998],
-                           'leakage_power': 0.001669513,
+                         'delay_hl': [1.5747600000000002],
-                           'min_period': 3.594,
+                         'delay_lh': [1.5747600000000002],
-                           'read0_power': [17.03022],
+                         'leakage_power': 0.00195795,
-                           'read1_power': [16.55897],
+                         'min_period': 3.281,
-                           'slew_hl': [0.7079951],
+                         'read0_power': [14.92874],
-                           'slew_lh': [0.7079951],
+                         'read1_power': [14.369810000000001],
-                           'write0_power': [15.16726],
+                         'slew_hl': [0.49631959999999997],
-                           'write1_power': [16.13527]}
+                         'slew_lh': [0.49631959999999997],
+                         'volt_bl': [4.132618],
+                         'volt_br': [5.573099],
+                         'write0_power': [13.79953],
+                         'write1_power': [14.369810000000001]}
+
         else:
             self.assertTrue(False) # other techs fail
 

compiler/tests/23_lib_sram_model_corners_test.py

@@ -0,0 +1,69 @@
+#!/usr/bin/env python3
+"""
+Check the .lib file for an SRAM
+"""
+
+import unittest
+from testutils import header,openram_test
+import sys,os,re
+sys.path.append(os.path.join(sys.path[0],".."))
+import globals
+from globals import OPTS
+import debug
+
+class model_corners_lib_test(openram_test):
+
+    def runTest(self):
+        globals.init_openram("config_20_{0}".format(OPTS.tech_name))
+
+        from characterizer import lib
+        from sram import sram
+        from sram_config import sram_config
+        c = sram_config(word_size=2,
+                        num_words=16,
+                        num_banks=1)
+        c.words_per_row=1
+        c.recompute_sizes()
+        debug.info(1, "Testing analytical timing for sample 2 bit, 16 words SRAM with 1 bank")
+        s = sram(c, "sram_2_16_1_{0}".format(OPTS.tech_name))
+        tempspice = OPTS.openram_temp + "temp.sp"
+        s.sp_write(tempspice)
+
+        #Set the corners. Lib will create a power set of the lists.
+        if OPTS.tech_name == "scn4m_subm":
+            OPTS.process_corners = ["TT", "SS", "FF"]
+            OPTS.supply_voltages = [5.0]
+            OPTS.temperatures = [25]
+        elif OPTS.tech_name == "freepdk45":
+            OPTS.process_corners = ["TT", "SS", "FF"]
+            OPTS.supply_voltages = [1.0]
+            OPTS.temperatures = [25]
+            
+        lib(out_dir=OPTS.openram_temp, sram=s.s, sp_file=tempspice, use_model=True)
+
+        # get all of the .lib files generated
+        files = os.listdir(OPTS.openram_temp)
+        nametest = re.compile("\.lib$", re.IGNORECASE)
+        lib_files = filter(nametest.search, files)
+
+        # and compare them with the golden model
+        for filename in lib_files:
+            newname = filename.replace(".lib","_analytical.lib")
+            libname = "{0}/{1}".format(OPTS.openram_temp,filename)
+            golden = "{0}/golden/{1}".format(os.path.dirname(os.path.realpath(__file__)),newname)
+            self.assertTrue(self.isapproxdiff(libname,golden,0.15))
+            
+        globals.end_openram()
+
+# run the test from the command line
+if __name__ == "__main__":
+    (OPTS, args) = globals.parse_args()
+    del sys.argv[1:]
+    header(__file__, OPTS.tech_name)
+    unittest.main()
+
+
+
+
+
+

compiler/tests/28_delay_model_test.py

@@ -0,0 +1,64 @@
+#!/usr/bin/env python3
+"""
+Run a regression test on various srams
+"""
+
+import unittest
+from testutils import header,openram_test
+import sys,os
+sys.path.append(os.path.join(sys.path[0],".."))
+import globals
+from globals import OPTS
+import debug
+
+class delay_model_test(openram_test):
+
+    def runTest(self):
+        globals.init_openram("config_20_{0}".format(OPTS.tech_name))
+        OPTS.spice_name="hspice"
+        OPTS.analytical_delay = False
+        OPTS.netlist_only = True
+        OPTS.trim_netlist = False
+        debug.info(1, "Trimming disabled for this test. Simulation could be slow.")
+        
+        # This is a hack to reload the characterizer __init__ with the spice version
+        from importlib import reload
+        import characterizer
+        reload(characterizer)
+        
+        from characterizer import model_check
+        from sram import sram
+        from sram_config import sram_config
+        c = sram_config(word_size=4,
+                        num_words=16,
+                        num_banks=1)
+        c.words_per_row=1
+        c.recompute_sizes()
+        debug.info(1, "Testing timing for sample 1bit, 16words SRAM with 1 bank")
+        s = sram(c, name="sram1")
+
+        tempspice = OPTS.openram_temp + "temp.sp"
+        s.sp_write(tempspice)
+
+        probe_address = "1" * s.s.addr_size
+        probe_data = s.s.word_size - 1
+        debug.info(1, "Probe address {0} probe data bit {1}".format(probe_address, probe_data))
+
+        corner = (OPTS.process_corners[0], OPTS.supply_voltages[0], OPTS.temperatures[0])
+        mc = model_check(s.s, tempspice, corner)
+        import tech
+        loads = [tech.spice["msflop_in_cap"]*4]
+        slews = [tech.spice["rise_time"]*2]
+        sram_data = mc.analyze(probe_address, probe_data, slews, loads)
+        #Combine info about port into all data
+
+        #debug.info(1,"Data:\n{}".format(wl_data))
+
+        globals.end_openram()
+        
+# run the test from the command line
+if __name__ == "__main__":
+    (OPTS, args) = globals.parse_args()
+    del sys.argv[1:]
+    header(__file__, OPTS.tech_name)
+    unittest.main()

compiler/tests/golden/sram_2_16_1_freepdk45_FF_1p0V_25C_analytical.lib

@@ -0,0 +1,321 @@
+library (sram_2_16_1_freepdk45_FF_1p0V_25C_lib){
+    delay_model : "table_lookup";
+    time_unit : "1ns" ;
+    voltage_unit : "1v" ;
+    current_unit : "1mA" ;
+    resistance_unit : "1kohm" ;
+    capacitive_load_unit(1 ,fF) ;
+    leakage_power_unit : "1mW" ;
+    pulling_resistance_unit :"1kohm" ;
+    operating_conditions(OC){
+    process : 1.0 ;
+    voltage : 1.0 ;
+    temperature : 25;
+    }
+
+    input_threshold_pct_fall       :  50.0 ;
+    output_threshold_pct_fall      :  50.0 ;
+    input_threshold_pct_rise       :  50.0 ;
+    output_threshold_pct_rise      :  50.0 ;
+    slew_lower_threshold_pct_fall  :  10.0 ;
+    slew_upper_threshold_pct_fall  :  90.0 ;
+    slew_lower_threshold_pct_rise  :  10.0 ;
+    slew_upper_threshold_pct_rise  :  90.0 ;
+
+    nom_voltage : 1.0;
+    nom_temperature : 25;
+    nom_process : 1.0;
+    default_cell_leakage_power    : 0.0 ;
+    default_leakage_power_density : 0.0 ;
+    default_input_pin_cap    : 1.0 ;
+    default_inout_pin_cap    : 1.0 ;
+    default_output_pin_cap   : 0.0 ;
+    default_max_transition   : 0.5 ;
+    default_fanout_load      : 1.0 ;
+    default_max_fanout   : 4.0 ;
+    default_connection_class : universal ;
+
+    lu_table_template(CELL_TABLE){
+        variable_1 : input_net_transition;
+        variable_2 : total_output_net_capacitance;
+        index_1("0.00125, 0.005, 0.04");
+        index_2("0.052275, 0.2091, 1.6728");
+    }
+
+    lu_table_template(CONSTRAINT_TABLE){
+        variable_1 : related_pin_transition;
+        variable_2 : constrained_pin_transition;
+        index_1("0.00125, 0.005, 0.04");
+        index_2("0.00125, 0.005, 0.04");
+    }
+
+    default_operating_conditions : OC; 
+
+
+    type (DATA){
+    base_type : array;
+    data_type : bit;
+    bit_width : 2;
+    bit_from : 0;
+    bit_to : 1;
+    }
+
+    type (ADDR){
+    base_type : array;
+    data_type : bit;
+    bit_width : 4;
+    bit_from : 0;
+    bit_to : 3;
+    }
+
+cell (sram_2_16_1_freepdk45){
+    memory(){ 
+    type : ram;
+    address_width : 4;
+    word_width : 2;
+    }
+    interface_timing : true;
+    dont_use  : true;
+    map_only   : true;
+    dont_touch : true;
+    area : 1124.88;
+
+    leakage_power () {
+      when : "CSb0";
+      value : 0.000167;
+    }
+    cell_leakage_power : 0;
+    bus(DIN0){
+        bus_type  : DATA; 
+        direction  : input; 
+        capacitance : 0.2091;  
+        memory_write(){ 
+            address : ADDR0; 
+            clocked_on  : clk0; 
+        }
+        pin(DIN0[1:0]){
+        timing(){ 
+            timing_type : setup_rising; 
+            related_pin  : "clk0"; 
+            rise_constraint(CONSTRAINT_TABLE) {
+            values("0.009, 0.009, 0.009",\
+                   "0.009, 0.009, 0.009",\
+                   "0.009, 0.009, 0.009");
+            }
+            fall_constraint(CONSTRAINT_TABLE) {
+            values("0.009, 0.009, 0.009",\
+                   "0.009, 0.009, 0.009",\
+                   "0.009, 0.009, 0.009");
+            }
+        }
+        timing(){ 
+            timing_type : hold_rising; 
+            related_pin  : "clk0"; 
+            rise_constraint(CONSTRAINT_TABLE) {
+            values("0.001, 0.001, 0.001",\
+                   "0.001, 0.001, 0.001",\
+                   "0.001, 0.001, 0.001");
+              }
+            fall_constraint(CONSTRAINT_TABLE) {
+            values("0.001, 0.001, 0.001",\
+                   "0.001, 0.001, 0.001",\
+                   "0.001, 0.001, 0.001");
+            }
+        }
+        }
+    }
+    bus(DOUT0){
+        bus_type  : DATA; 
+        direction  : output; 
+        max_capacitance : 1.6728;  
+        min_capacitance : 0.052275;  
+        memory_read(){ 
+            address : ADDR0; 
+        }
+        pin(DOUT0[1:0]){
+        timing(){ 
+            timing_sense : non_unate; 
+            related_pin : "clk0"; 
+            timing_type : falling_edge; 
+            cell_rise(CELL_TABLE) {
+            values("0.088, 0.088, 0.088",\
+                   "0.088, 0.088, 0.088",\
+                   "0.088, 0.088, 0.088");
+            }
+            cell_fall(CELL_TABLE) {
+            values("0.088, 0.088, 0.088",\
+                   "0.088, 0.088, 0.088",\
+                   "0.088, 0.088, 0.088");
+            }
+            rise_transition(CELL_TABLE) {
+            values("0.001, 0.001, 0.001",\
+                   "0.001, 0.001, 0.001",\
+                   "0.001, 0.001, 0.001");
+            }
+            fall_transition(CELL_TABLE) {
+            values("0.001, 0.001, 0.001",\
+                   "0.001, 0.001, 0.001",\
+                   "0.001, 0.001, 0.001");
+            }
+        }
+        }
+    }
+
+    bus(ADDR0){
+        bus_type  : ADDR; 
+        direction  : input; 
+        capacitance : 0.2091;  
+        max_transition       : 0.04;
+        pin(ADDR0[3:0]){
+        timing(){ 
+            timing_type : setup_rising; 
+            related_pin  : "clk0"; 
+            rise_constraint(CONSTRAINT_TABLE) {
+            values("0.009, 0.009, 0.009",\
+                   "0.009, 0.009, 0.009",\
+                   "0.009, 0.009, 0.009");
+            }
+            fall_constraint(CONSTRAINT_TABLE) {
+            values("0.009, 0.009, 0.009",\
+                   "0.009, 0.009, 0.009",\
+                   "0.009, 0.009, 0.009");
+            }
+        }
+        timing(){ 
+            timing_type : hold_rising; 
+            related_pin  : "clk0"; 
+            rise_constraint(CONSTRAINT_TABLE) {
+            values("0.001, 0.001, 0.001",\
+                   "0.001, 0.001, 0.001",\
+                   "0.001, 0.001, 0.001");
+              }
+            fall_constraint(CONSTRAINT_TABLE) {
+            values("0.001, 0.001, 0.001",\
+                   "0.001, 0.001, 0.001",\
+                   "0.001, 0.001, 0.001");
+            }
+        }
+        }
+    }
+
+    pin(CSb0){
+        direction  : input; 
+        capacitance : 0.2091;  
+        timing(){ 
+            timing_type : setup_rising; 
+            related_pin  : "clk0"; 
+            rise_constraint(CONSTRAINT_TABLE) {
+            values("0.009, 0.009, 0.009",\
+                   "0.009, 0.009, 0.009",\
+                   "0.009, 0.009, 0.009");
+            }
+            fall_constraint(CONSTRAINT_TABLE) {
+            values("0.009, 0.009, 0.009",\
+                   "0.009, 0.009, 0.009",\
+                   "0.009, 0.009, 0.009");
+            }
+        }
+        timing(){ 
+            timing_type : hold_rising; 
+            related_pin  : "clk0"; 
+            rise_constraint(CONSTRAINT_TABLE) {
+            values("0.001, 0.001, 0.001",\
+                   "0.001, 0.001, 0.001",\
+                   "0.001, 0.001, 0.001");
+              }
+            fall_constraint(CONSTRAINT_TABLE) {
+            values("0.001, 0.001, 0.001",\
+                   "0.001, 0.001, 0.001",\
+                   "0.001, 0.001, 0.001");
+            }
+        }
+    }
+
+    pin(WEb0){
+        direction  : input; 
+        capacitance : 0.2091;  
+        timing(){ 
+            timing_type : setup_rising; 
+            related_pin  : "clk0"; 
+            rise_constraint(CONSTRAINT_TABLE) {
+            values("0.009, 0.009, 0.009",\
+                   "0.009, 0.009, 0.009",\
+                   "0.009, 0.009, 0.009");
+            }
+            fall_constraint(CONSTRAINT_TABLE) {
+            values("0.009, 0.009, 0.009",\
+                   "0.009, 0.009, 0.009",\
+                   "0.009, 0.009, 0.009");
+            }
+        }
+        timing(){ 
+            timing_type : hold_rising; 
+            related_pin  : "clk0"; 
+            rise_constraint(CONSTRAINT_TABLE) {
+            values("0.001, 0.001, 0.001",\
+                   "0.001, 0.001, 0.001",\
+                   "0.001, 0.001, 0.001");
+              }
+            fall_constraint(CONSTRAINT_TABLE) {
+            values("0.001, 0.001, 0.001",\
+                   "0.001, 0.001, 0.001",\
+                   "0.001, 0.001, 0.001");
+            }
+        }
+    }
+
+    pin(clk0){
+        clock             : true;
+        direction  : input; 
+        capacitance : 0.2091;  
+        internal_power(){
+            when : "!CSb0 & clk0 & !WEb0"; 
+            rise_power(scalar){
+                values("0.033101244168888884");
+            }
+            fall_power(scalar){
+                values("0.033101244168888884");
+            }
+        }
+        internal_power(){
+            when : "!CSb0 & !clk0 & WEb0"; 
+            rise_power(scalar){
+                values("0.033101244168888884");
+            }
+            fall_power(scalar){
+                values("0.033101244168888884");
+            }
+        }
+        internal_power(){
+            when : "CSb0"; 
+            rise_power(scalar){
+                values("0");
+            }
+            fall_power(scalar){
+                values("0");
+            }
+        }
+        timing(){ 
+            timing_type :"min_pulse_width"; 
+            related_pin  : clk0; 
+            rise_constraint(scalar) {
+                values("0.009"); 
+            }
+            fall_constraint(scalar) {
+                values("0.009"); 
+            }
+         }
+        timing(){ 
+            timing_type :"minimum_period"; 
+            related_pin  : clk0; 
+            rise_constraint(scalar) {
+                values("0.018"); 
+            }
+            fall_constraint(scalar) {
+                values("0.018"); 
+            }
+         }
+    }
+
+    }
+}

compiler/tests/golden/sram_2_16_1_freepdk45_SS_1p0V_25C_analytical.lib

@@ -0,0 +1,321 @@
+library (sram_2_16_1_freepdk45_SS_1p0V_25C_lib){
+    delay_model : "table_lookup";
+    time_unit : "1ns" ;
+    voltage_unit : "1v" ;
+    current_unit : "1mA" ;
+    resistance_unit : "1kohm" ;
+    capacitive_load_unit(1 ,fF) ;
+    leakage_power_unit : "1mW" ;
+    pulling_resistance_unit :"1kohm" ;
+    operating_conditions(OC){
+    process : 1.0 ;
+    voltage : 1.0 ;
+    temperature : 25;
+    }
+
+    input_threshold_pct_fall       :  50.0 ;
+    output_threshold_pct_fall      :  50.0 ;
+    input_threshold_pct_rise       :  50.0 ;
+    output_threshold_pct_rise      :  50.0 ;
+    slew_lower_threshold_pct_fall  :  10.0 ;
+    slew_upper_threshold_pct_fall  :  90.0 ;
+    slew_lower_threshold_pct_rise  :  10.0 ;
+    slew_upper_threshold_pct_rise  :  90.0 ;
+
+    nom_voltage : 1.0;
+    nom_temperature : 25;
+    nom_process : 1.0;
+    default_cell_leakage_power    : 0.0 ;
+    default_leakage_power_density : 0.0 ;
+    default_input_pin_cap    : 1.0 ;
+    default_inout_pin_cap    : 1.0 ;
+    default_output_pin_cap   : 0.0 ;
+    default_max_transition   : 0.5 ;
+    default_fanout_load      : 1.0 ;
+    default_max_fanout   : 4.0 ;
+    default_connection_class : universal ;
+
+    lu_table_template(CELL_TABLE){
+        variable_1 : input_net_transition;
+        variable_2 : total_output_net_capacitance;
+        index_1("0.00125, 0.005, 0.04");
+        index_2("0.052275, 0.2091, 1.6728");
+    }
+
+    lu_table_template(CONSTRAINT_TABLE){
+        variable_1 : related_pin_transition;
+        variable_2 : constrained_pin_transition;
+        index_1("0.00125, 0.005, 0.04");
+        index_2("0.00125, 0.005, 0.04");
+    }
+
+    default_operating_conditions : OC; 
+
+
+    type (DATA){
+    base_type : array;
+    data_type : bit;
+    bit_width : 2;
+    bit_from : 0;
+    bit_to : 1;
+    }
+
+    type (ADDR){
+    base_type : array;
+    data_type : bit;
+    bit_width : 4;
+    bit_from : 0;
+    bit_to : 3;
+    }
+
+cell (sram_2_16_1_freepdk45){
+    memory(){ 
+    type : ram;
+    address_width : 4;
+    word_width : 2;
+    }
+    interface_timing : true;
+    dont_use  : true;
+    map_only   : true;
+    dont_touch : true;
+    area : 1124.88;
+
+    leakage_power () {
+      when : "CSb0";
+      value : 0.000167;
+    }
+    cell_leakage_power : 0;
+    bus(DIN0){
+        bus_type  : DATA; 
+        direction  : input; 
+        capacitance : 0.2091;  
+        memory_write(){ 
+            address : ADDR0; 
+            clocked_on  : clk0; 
+        }
+        pin(DIN0[1:0]){
+        timing(){ 
+            timing_type : setup_rising; 
+            related_pin  : "clk0"; 
+            rise_constraint(CONSTRAINT_TABLE) {
+            values("0.009, 0.009, 0.009",\
+                   "0.009, 0.009, 0.009",\
+                   "0.009, 0.009, 0.009");
+            }
+            fall_constraint(CONSTRAINT_TABLE) {
+            values("0.009, 0.009, 0.009",\
+                   "0.009, 0.009, 0.009",\
+                   "0.009, 0.009, 0.009");
+            }
+        }
+        timing(){ 
+            timing_type : hold_rising; 
+            related_pin  : "clk0"; 
+            rise_constraint(CONSTRAINT_TABLE) {
+            values("0.001, 0.001, 0.001",\
+                   "0.001, 0.001, 0.001",\
+                   "0.001, 0.001, 0.001");
+              }
+            fall_constraint(CONSTRAINT_TABLE) {
+            values("0.001, 0.001, 0.001",\
+                   "0.001, 0.001, 0.001",\
+                   "0.001, 0.001, 0.001");
+            }
+        }
+        }
+    }
+    bus(DOUT0){
+        bus_type  : DATA; 
+        direction  : output; 
+        max_capacitance : 1.6728;  
+        min_capacitance : 0.052275;  
+        memory_read(){ 
+            address : ADDR0; 
+        }
+        pin(DOUT0[1:0]){
+        timing(){ 
+            timing_sense : non_unate; 
+            related_pin : "clk0"; 
+            timing_type : falling_edge; 
+            cell_rise(CELL_TABLE) {
+            values("0.107, 0.107, 0.107",\
+                   "0.107, 0.107, 0.107",\
+                   "0.107, 0.107, 0.107");
+            }
+            cell_fall(CELL_TABLE) {
+            values("0.107, 0.107, 0.107",\
+                   "0.107, 0.107, 0.107",\
+                   "0.107, 0.107, 0.107");
+            }
+            rise_transition(CELL_TABLE) {
+            values("0.001, 0.001, 0.001",\
+                   "0.001, 0.001, 0.001",\
+                   "0.001, 0.001, 0.001");
+            }
+            fall_transition(CELL_TABLE) {
+            values("0.001, 0.001, 0.001",\
+                   "0.001, 0.001, 0.001",\
+                   "0.001, 0.001, 0.001");
+            }
+        }
+        }
+    }
+
+    bus(ADDR0){
+        bus_type  : ADDR; 
+        direction  : input; 
+        capacitance : 0.2091;  
+        max_transition       : 0.04;
+        pin(ADDR0[3:0]){
+        timing(){ 
+            timing_type : setup_rising; 
+            related_pin  : "clk0"; 
+            rise_constraint(CONSTRAINT_TABLE) {
+            values("0.009, 0.009, 0.009",\
+                   "0.009, 0.009, 0.009",\
+                   "0.009, 0.009, 0.009");
+            }
+            fall_constraint(CONSTRAINT_TABLE) {
+            values("0.009, 0.009, 0.009",\
+                   "0.009, 0.009, 0.009",\
+                   "0.009, 0.009, 0.009");
+            }
+        }
+        timing(){ 
+            timing_type : hold_rising; 
+            related_pin  : "clk0"; 
+            rise_constraint(CONSTRAINT_TABLE) {
+            values("0.001, 0.001, 0.001",\
+                   "0.001, 0.001, 0.001",\
+                   "0.001, 0.001, 0.001");
+              }
+            fall_constraint(CONSTRAINT_TABLE) {
+            values("0.001, 0.001, 0.001",\
+                   "0.001, 0.001, 0.001",\
+                   "0.001, 0.001, 0.001");
+            }
+        }
+        }
+    }
+
+    pin(CSb0){
+        direction  : input; 
+        capacitance : 0.2091;  
+        timing(){ 
+            timing_type : setup_rising; 
+            related_pin  : "clk0"; 
+            rise_constraint(CONSTRAINT_TABLE) {
+            values("0.009, 0.009, 0.009",\
+                   "0.009, 0.009, 0.009",\
+                   "0.009, 0.009, 0.009");
+            }
+            fall_constraint(CONSTRAINT_TABLE) {
+            values("0.009, 0.009, 0.009",\
+                   "0.009, 0.009, 0.009",\
+                   "0.009, 0.009, 0.009");
+            }
+        }
+        timing(){ 
+            timing_type : hold_rising; 
+            related_pin  : "clk0"; 
+            rise_constraint(CONSTRAINT_TABLE) {
+            values("0.001, 0.001, 0.001",\
+                   "0.001, 0.001, 0.001",\
+                   "0.001, 0.001, 0.001");
+              }
+            fall_constraint(CONSTRAINT_TABLE) {
+            values("0.001, 0.001, 0.001",\
+                   "0.001, 0.001, 0.001",\
+                   "0.001, 0.001, 0.001");
+            }
+        }
+    }
+
+    pin(WEb0){
+        direction  : input; 
+        capacitance : 0.2091;  
+        timing(){ 
+            timing_type : setup_rising; 
+            related_pin  : "clk0"; 
+            rise_constraint(CONSTRAINT_TABLE) {
+            values("0.009, 0.009, 0.009",\
+                   "0.009, 0.009, 0.009",\
+                   "0.009, 0.009, 0.009");
+            }
+            fall_constraint(CONSTRAINT_TABLE) {
+            values("0.009, 0.009, 0.009",\
+                   "0.009, 0.009, 0.009",\
+                   "0.009, 0.009, 0.009");
+            }
+        }
+        timing(){ 
+            timing_type : hold_rising; 
+            related_pin  : "clk0"; 
+            rise_constraint(CONSTRAINT_TABLE) {
+            values("0.001, 0.001, 0.001",\
+                   "0.001, 0.001, 0.001",\
+                   "0.001, 0.001, 0.001");
+              }
+            fall_constraint(CONSTRAINT_TABLE) {
+            values("0.001, 0.001, 0.001",\
+                   "0.001, 0.001, 0.001",\
+                   "0.001, 0.001, 0.001");
+            }
+        }
+    }
+
+    pin(clk0){
+        clock             : true;
+        direction  : input; 
+        capacitance : 0.2091;  
+        internal_power(){
+            when : "!CSb0 & clk0 & !WEb0"; 
+            rise_power(scalar){
+                values("0.033101244168888884");
+            }
+            fall_power(scalar){
+                values("0.033101244168888884");
+            }
+        }
+        internal_power(){
+            when : "!CSb0 & !clk0 & WEb0"; 
+            rise_power(scalar){
+                values("0.033101244168888884");
+            }
+            fall_power(scalar){
+                values("0.033101244168888884");
+            }
+        }
+        internal_power(){
+            when : "CSb0"; 
+            rise_power(scalar){
+                values("0");
+            }
+            fall_power(scalar){
+                values("0");
+            }
+        }
+        timing(){ 
+            timing_type :"min_pulse_width"; 
+            related_pin  : clk0; 
+            rise_constraint(scalar) {
+                values("0.0105"); 
+            }
+            fall_constraint(scalar) {
+                values("0.0105"); 
+            }
+         }
+        timing(){ 
+            timing_type :"minimum_period"; 
+            related_pin  : clk0; 
+            rise_constraint(scalar) {
+                values("0.021"); 
+            }
+            fall_constraint(scalar) {
+                values("0.021"); 
+            }
+         }
+    }
+
+    }
+}

compiler/tests/golden/sram_2_16_1_freepdk45_TT_1p0V_25C.lib

@@ -93,7 +93,7 @@ cell (sram_2_16_1_freepdk45){
             address : ADDR0; 
             clocked_on  : clk0; 
         }
-        pin(DIN0){
+        pin(DIN0[1:0]){
         timing(){ 
             timing_type : setup_rising; 
             related_pin  : "clk0"; 
@@ -132,7 +132,7 @@ cell (sram_2_16_1_freepdk45){
         memory_read(){ 
             address : ADDR0; 
         }
-        pin(DOUT0){
+        pin(DOUT0[1:0]){
         timing(){ 
             timing_sense : non_unate; 
             related_pin : "clk0"; 
@@ -166,7 +166,7 @@ cell (sram_2_16_1_freepdk45){
         direction  : input; 
         capacitance : 0.2091;  
         max_transition       : 0.04;
-        pin(ADDR0){
+        pin(ADDR0[3:0]){
         timing(){ 
             timing_type : setup_rising; 
             related_pin  : "clk0"; 

compiler/tests/golden/sram_2_16_1_freepdk45_TT_1p0V_25C_analytical.lib

@@ -93,7 +93,7 @@ cell (sram_2_16_1_freepdk45){
             address : ADDR0; 
             clocked_on  : clk0; 
         }
-        pin(DIN0){
+        pin(DIN0[1:0]){
         timing(){ 
             timing_type : setup_rising; 
             related_pin  : "clk0"; 
@@ -132,7 +132,7 @@ cell (sram_2_16_1_freepdk45){
         memory_read(){ 
             address : ADDR0; 
         }
-        pin(DOUT0){
+        pin(DOUT0[1:0]){
         timing(){ 
             timing_sense : non_unate; 
             related_pin : "clk0"; 
@@ -166,7 +166,7 @@ cell (sram_2_16_1_freepdk45){
         direction  : input; 
         capacitance : 0.2091;  
         max_transition       : 0.04;
-        pin(ADDR0){
+        pin(ADDR0[3:0]){
         timing(){ 
             timing_type : setup_rising; 
             related_pin  : "clk0"; 

compiler/tests/golden/sram_2_16_1_freepdk45_TT_1p0V_25C_pruned.lib

@@ -93,7 +93,7 @@ cell (sram_2_16_1_freepdk45){
             address : ADDR0; 
             clocked_on  : clk0; 
         }
-        pin(DIN0){
+        pin(DIN0[1:0]){
         timing(){ 
             timing_type : setup_rising; 
             related_pin  : "clk0"; 
@@ -132,7 +132,7 @@ cell (sram_2_16_1_freepdk45){
         memory_read(){ 
             address : ADDR0; 
         }
-        pin(DOUT0){
+        pin(DOUT0[1:0]){
         timing(){ 
             timing_sense : non_unate; 
             related_pin : "clk0"; 
@@ -166,7 +166,7 @@ cell (sram_2_16_1_freepdk45){
         direction  : input; 
         capacitance : 0.2091;  
         max_transition       : 0.04;
-        pin(ADDR0){
+        pin(ADDR0[3:0]){
         timing(){ 
             timing_type : setup_rising; 
             related_pin  : "clk0"; 

compiler/tests/golden/sram_2_16_1_scn4m_subm_FF_5p0V_25C_analytical.lib

@@ -0,0 +1,321 @@
+library (sram_2_16_1_scn4m_subm_FF_5p0V_25C_lib){
+    delay_model : "table_lookup";
+    time_unit : "1ns" ;
+    voltage_unit : "1v" ;
+    current_unit : "1mA" ;
+    resistance_unit : "1kohm" ;
+    capacitive_load_unit(1 ,fF) ;
+    leakage_power_unit : "1mW" ;
+    pulling_resistance_unit :"1kohm" ;
+    operating_conditions(OC){
+    process : 1.0 ;
+    voltage : 5.0 ;
+    temperature : 25;
+    }
+
+    input_threshold_pct_fall       :  50.0 ;
+    output_threshold_pct_fall      :  50.0 ;
+    input_threshold_pct_rise       :  50.0 ;
+    output_threshold_pct_rise      :  50.0 ;
+    slew_lower_threshold_pct_fall  :  10.0 ;
+    slew_upper_threshold_pct_fall  :  90.0 ;
+    slew_lower_threshold_pct_rise  :  10.0 ;
+    slew_upper_threshold_pct_rise  :  90.0 ;
+
+    nom_voltage : 5.0;
+    nom_temperature : 25;
+    nom_process : 1.0;
+    default_cell_leakage_power    : 0.0 ;
+    default_leakage_power_density : 0.0 ;
+    default_input_pin_cap    : 1.0 ;
+    default_inout_pin_cap    : 1.0 ;
+    default_output_pin_cap   : 0.0 ;
+    default_max_transition   : 0.5 ;
+    default_fanout_load      : 1.0 ;
+    default_max_fanout   : 4.0 ;
+    default_connection_class : universal ;
+
+    lu_table_template(CELL_TABLE){
+        variable_1 : input_net_transition;
+        variable_2 : total_output_net_capacitance;
+        index_1("0.0125, 0.05, 0.4");
+        index_2("2.45605, 9.8242, 78.5936");
+    }
+
+    lu_table_template(CONSTRAINT_TABLE){
+        variable_1 : related_pin_transition;
+        variable_2 : constrained_pin_transition;
+        index_1("0.0125, 0.05, 0.4");
+        index_2("0.0125, 0.05, 0.4");
+    }
+
+    default_operating_conditions : OC; 
+
+
+    type (DATA){
+    base_type : array;
+    data_type : bit;
+    bit_width : 2;
+    bit_from : 0;
+    bit_to : 1;
+    }
+
+    type (ADDR){
+    base_type : array;
+    data_type : bit;
+    bit_width : 4;
+    bit_from : 0;
+    bit_to : 3;
+    }
+
+cell (sram_2_16_1_scn4m_subm){
+    memory(){ 
+    type : ram;
+    address_width : 4;
+    word_width : 2;
+    }
+    interface_timing : true;
+    dont_use  : true;
+    map_only   : true;
+    dont_touch : true;
+    area : 73068.14000000001;
+
+    leakage_power () {
+      when : "CSb0";
+      value : 0.000167;
+    }
+    cell_leakage_power : 0;
+    bus(DIN0){
+        bus_type  : DATA; 
+        direction  : input; 
+        capacitance : 9.8242;  
+        memory_write(){ 
+            address : ADDR0; 
+            clocked_on  : clk0; 
+        }
+        pin(DIN0[1:0]){
+        timing(){ 
+            timing_type : setup_rising; 
+            related_pin  : "clk0"; 
+            rise_constraint(CONSTRAINT_TABLE) {
+            values("0.009, 0.009, 0.009",\
+                   "0.009, 0.009, 0.009",\
+                   "0.009, 0.009, 0.009");
+            }
+            fall_constraint(CONSTRAINT_TABLE) {
+            values("0.009, 0.009, 0.009",\
+                   "0.009, 0.009, 0.009",\
+                   "0.009, 0.009, 0.009");
+            }
+        }
+        timing(){ 
+            timing_type : hold_rising; 
+            related_pin  : "clk0"; 
+            rise_constraint(CONSTRAINT_TABLE) {
+            values("0.001, 0.001, 0.001",\
+                   "0.001, 0.001, 0.001",\
+                   "0.001, 0.001, 0.001");
+              }
+            fall_constraint(CONSTRAINT_TABLE) {
+            values("0.001, 0.001, 0.001",\
+                   "0.001, 0.001, 0.001",\
+                   "0.001, 0.001, 0.001");
+            }
+        }
+        }
+    }
+    bus(DOUT0){
+        bus_type  : DATA; 
+        direction  : output; 
+        max_capacitance : 78.5936;  
+        min_capacitance : 2.45605;  
+        memory_read(){ 
+            address : ADDR0; 
+        }
+        pin(DOUT0[1:0]){
+        timing(){ 
+            timing_sense : non_unate; 
+            related_pin : "clk0"; 
+            timing_type : falling_edge; 
+            cell_rise(CELL_TABLE) {
+            values("0.241, 0.241, 0.241",\
+                   "0.241, 0.241, 0.241",\
+                   "0.241, 0.241, 0.241");
+            }
+            cell_fall(CELL_TABLE) {
+            values("0.241, 0.241, 0.241",\
+                   "0.241, 0.241, 0.241",\
+                   "0.241, 0.241, 0.241");
+            }
+            rise_transition(CELL_TABLE) {
+            values("0.004, 0.004, 0.004",\
+                   "0.004, 0.004, 0.004",\
+                   "0.004, 0.004, 0.004");
+            }
+            fall_transition(CELL_TABLE) {
+            values("0.004, 0.004, 0.004",\
+                   "0.004, 0.004, 0.004",\
+                   "0.004, 0.004, 0.004");
+            }
+        }
+        }
+    }
+
+    bus(ADDR0){
+        bus_type  : ADDR; 
+        direction  : input; 
+        capacitance : 9.8242;  
+        max_transition       : 0.4;
+        pin(ADDR0[3:0]){
+        timing(){ 
+            timing_type : setup_rising; 
+            related_pin  : "clk0"; 
+            rise_constraint(CONSTRAINT_TABLE) {
+            values("0.009, 0.009, 0.009",\
+                   "0.009, 0.009, 0.009",\
+                   "0.009, 0.009, 0.009");
+            }
+            fall_constraint(CONSTRAINT_TABLE) {
+            values("0.009, 0.009, 0.009",\
+                   "0.009, 0.009, 0.009",\
+                   "0.009, 0.009, 0.009");
+            }
+        }
+        timing(){ 
+            timing_type : hold_rising; 
+            related_pin  : "clk0"; 
+            rise_constraint(CONSTRAINT_TABLE) {
+            values("0.001, 0.001, 0.001",\
+                   "0.001, 0.001, 0.001",\
+                   "0.001, 0.001, 0.001");
+              }
+            fall_constraint(CONSTRAINT_TABLE) {
+            values("0.001, 0.001, 0.001",\
+                   "0.001, 0.001, 0.001",\
+                   "0.001, 0.001, 0.001");
+            }
+        }
+        }
+    }
+
+    pin(CSb0){
+        direction  : input; 
+        capacitance : 9.8242;  
+        timing(){ 
+            timing_type : setup_rising; 
+            related_pin  : "clk0"; 
+            rise_constraint(CONSTRAINT_TABLE) {
+            values("0.009, 0.009, 0.009",\
+                   "0.009, 0.009, 0.009",\
+                   "0.009, 0.009, 0.009");
+            }
+            fall_constraint(CONSTRAINT_TABLE) {
+            values("0.009, 0.009, 0.009",\
+                   "0.009, 0.009, 0.009",\
+                   "0.009, 0.009, 0.009");
+            }
+        }
+        timing(){ 
+            timing_type : hold_rising; 
+            related_pin  : "clk0"; 
+            rise_constraint(CONSTRAINT_TABLE) {
+            values("0.001, 0.001, 0.001",\
+                   "0.001, 0.001, 0.001",\
+                   "0.001, 0.001, 0.001");
+              }
+            fall_constraint(CONSTRAINT_TABLE) {
+            values("0.001, 0.001, 0.001",\
+                   "0.001, 0.001, 0.001",\
+                   "0.001, 0.001, 0.001");
+            }
+        }
+    }
+
+    pin(WEb0){
+        direction  : input; 
+        capacitance : 9.8242;  
+        timing(){ 
+            timing_type : setup_rising; 
+            related_pin  : "clk0"; 
+            rise_constraint(CONSTRAINT_TABLE) {
+            values("0.009, 0.009, 0.009",\
+                   "0.009, 0.009, 0.009",\
+                   "0.009, 0.009, 0.009");
+            }
+            fall_constraint(CONSTRAINT_TABLE) {
+            values("0.009, 0.009, 0.009",\
+                   "0.009, 0.009, 0.009",\
+                   "0.009, 0.009, 0.009");
+            }
+        }
+        timing(){ 
+            timing_type : hold_rising; 
+            related_pin  : "clk0"; 
+            rise_constraint(CONSTRAINT_TABLE) {
+            values("0.001, 0.001, 0.001",\
+                   "0.001, 0.001, 0.001",\
+                   "0.001, 0.001, 0.001");
+              }
+            fall_constraint(CONSTRAINT_TABLE) {
+            values("0.001, 0.001, 0.001",\
+                   "0.001, 0.001, 0.001",\
+                   "0.001, 0.001, 0.001");
+            }
+        }
+    }
+
+    pin(clk0){
+        clock             : true;
+        direction  : input; 
+        capacitance : 9.8242;  
+        internal_power(){
+            when : "!CSb0 & clk0 & !WEb0"; 
+            rise_power(scalar){
+                values("4.99880645");
+            }
+            fall_power(scalar){
+                values("4.99880645");
+            }
+        }
+        internal_power(){
+            when : "!CSb0 & !clk0 & WEb0"; 
+            rise_power(scalar){
+                values("4.99880645");
+            }
+            fall_power(scalar){
+                values("4.99880645");
+            }
+        }
+        internal_power(){
+            when : "CSb0"; 
+            rise_power(scalar){
+                values("0");
+            }
+            fall_power(scalar){
+                values("0");
+            }
+        }
+        timing(){ 
+            timing_type :"min_pulse_width"; 
+            related_pin  : clk0; 
+            rise_constraint(scalar) {
+                values("0.024"); 
+            }
+            fall_constraint(scalar) {
+                values("0.024"); 
+            }
+         }
+        timing(){ 
+            timing_type :"minimum_period"; 
+            related_pin  : clk0; 
+            rise_constraint(scalar) {
+                values("0.048"); 
+            }
+            fall_constraint(scalar) {
+                values("0.048"); 
+            }
+         }
+    }
+
+    }
+}

compiler/tests/golden/sram_2_16_1_scn4m_subm_SS_5p0V_25C_analytical.lib

@@ -0,0 +1,321 @@
+library (sram_2_16_1_scn4m_subm_SS_5p0V_25C_lib){
+    delay_model : "table_lookup";
+    time_unit : "1ns" ;
+    voltage_unit : "1v" ;
+    current_unit : "1mA" ;
+    resistance_unit : "1kohm" ;
+    capacitive_load_unit(1 ,fF) ;
+    leakage_power_unit : "1mW" ;
+    pulling_resistance_unit :"1kohm" ;
+    operating_conditions(OC){
+    process : 1.0 ;
+    voltage : 5.0 ;
+    temperature : 25;
+    }
+
+    input_threshold_pct_fall       :  50.0 ;
+    output_threshold_pct_fall      :  50.0 ;
+    input_threshold_pct_rise       :  50.0 ;
+    output_threshold_pct_rise      :  50.0 ;
+    slew_lower_threshold_pct_fall  :  10.0 ;
+    slew_upper_threshold_pct_fall  :  90.0 ;
+    slew_lower_threshold_pct_rise  :  10.0 ;
+    slew_upper_threshold_pct_rise  :  90.0 ;
+
+    nom_voltage : 5.0;
+    nom_temperature : 25;
+    nom_process : 1.0;
+    default_cell_leakage_power    : 0.0 ;
+    default_leakage_power_density : 0.0 ;
+    default_input_pin_cap    : 1.0 ;
+    default_inout_pin_cap    : 1.0 ;
+    default_output_pin_cap   : 0.0 ;
+    default_max_transition   : 0.5 ;
+    default_fanout_load      : 1.0 ;
+    default_max_fanout   : 4.0 ;
+    default_connection_class : universal ;
+
+    lu_table_template(CELL_TABLE){
+        variable_1 : input_net_transition;
+        variable_2 : total_output_net_capacitance;
+        index_1("0.0125, 0.05, 0.4");
+        index_2("2.45605, 9.8242, 78.5936");
+    }
+
+    lu_table_template(CONSTRAINT_TABLE){
+        variable_1 : related_pin_transition;
+        variable_2 : constrained_pin_transition;
+        index_1("0.0125, 0.05, 0.4");
+        index_2("0.0125, 0.05, 0.4");
+    }
+
+    default_operating_conditions : OC; 
+
+
+    type (DATA){
+    base_type : array;
+    data_type : bit;
+    bit_width : 2;
+    bit_from : 0;
+    bit_to : 1;
+    }
+
+    type (ADDR){
+    base_type : array;
+    data_type : bit;
+    bit_width : 4;
+    bit_from : 0;
+    bit_to : 3;
+    }
+
+cell (sram_2_16_1_scn4m_subm){
+    memory(){ 
+    type : ram;
+    address_width : 4;
+    word_width : 2;
+    }
+    interface_timing : true;
+    dont_use  : true;
+    map_only   : true;
+    dont_touch : true;
+    area : 73068.14000000001;
+
+    leakage_power () {
+      when : "CSb0";
+      value : 0.000167;
+    }
+    cell_leakage_power : 0;
+    bus(DIN0){
+        bus_type  : DATA; 
+        direction  : input; 
+        capacitance : 9.8242;  
+        memory_write(){ 
+            address : ADDR0; 
+            clocked_on  : clk0; 
+        }
+        pin(DIN0[1:0]){
+        timing(){ 
+            timing_type : setup_rising; 
+            related_pin  : "clk0"; 
+            rise_constraint(CONSTRAINT_TABLE) {
+            values("0.009, 0.009, 0.009",\
+                   "0.009, 0.009, 0.009",\
+                   "0.009, 0.009, 0.009");
+            }
+            fall_constraint(CONSTRAINT_TABLE) {
+            values("0.009, 0.009, 0.009",\
+                   "0.009, 0.009, 0.009",\
+                   "0.009, 0.009, 0.009");
+            }
+        }
+        timing(){ 
+            timing_type : hold_rising; 
+            related_pin  : "clk0"; 
+            rise_constraint(CONSTRAINT_TABLE) {
+            values("0.001, 0.001, 0.001",\
+                   "0.001, 0.001, 0.001",\
+                   "0.001, 0.001, 0.001");
+              }
+            fall_constraint(CONSTRAINT_TABLE) {
+            values("0.001, 0.001, 0.001",\
+                   "0.001, 0.001, 0.001",\
+                   "0.001, 0.001, 0.001");
+            }
+        }
+        }
+    }
+    bus(DOUT0){
+        bus_type  : DATA; 
+        direction  : output; 
+        max_capacitance : 78.5936;  
+        min_capacitance : 2.45605;  
+        memory_read(){ 
+            address : ADDR0; 
+        }
+        pin(DOUT0[1:0]){
+        timing(){ 
+            timing_sense : non_unate; 
+            related_pin : "clk0"; 
+            timing_type : falling_edge; 
+            cell_rise(CELL_TABLE) {
+            values("0.294, 0.294, 0.294",\
+                   "0.294, 0.294, 0.294",\
+                   "0.294, 0.294, 0.294");
+            }
+            cell_fall(CELL_TABLE) {
+            values("0.294, 0.294, 0.294",\
+                   "0.294, 0.294, 0.294",\
+                   "0.294, 0.294, 0.294");
+            }
+            rise_transition(CELL_TABLE) {
+            values("0.004, 0.004, 0.004",\
+                   "0.004, 0.004, 0.004",\
+                   "0.004, 0.004, 0.004");
+            }
+            fall_transition(CELL_TABLE) {
+            values("0.004, 0.004, 0.004",\
+                   "0.004, 0.004, 0.004",\
+                   "0.004, 0.004, 0.004");
+            }
+        }
+        }
+    }
+
+    bus(ADDR0){
+        bus_type  : ADDR; 
+        direction  : input; 
+        capacitance : 9.8242;  
+        max_transition       : 0.4;
+        pin(ADDR0[3:0]){
+        timing(){ 
+            timing_type : setup_rising; 
+            related_pin  : "clk0"; 
+            rise_constraint(CONSTRAINT_TABLE) {
+            values("0.009, 0.009, 0.009",\
+                   "0.009, 0.009, 0.009",\
+                   "0.009, 0.009, 0.009");
+            }
+            fall_constraint(CONSTRAINT_TABLE) {
+            values("0.009, 0.009, 0.009",\
+                   "0.009, 0.009, 0.009",\
+                   "0.009, 0.009, 0.009");
+            }
+        }
+        timing(){ 
+            timing_type : hold_rising; 
+            related_pin  : "clk0"; 
+            rise_constraint(CONSTRAINT_TABLE) {
+            values("0.001, 0.001, 0.001",\
+                   "0.001, 0.001, 0.001",\
+                   "0.001, 0.001, 0.001");
+              }
+            fall_constraint(CONSTRAINT_TABLE) {
+            values("0.001, 0.001, 0.001",\
+                   "0.001, 0.001, 0.001",\
+                   "0.001, 0.001, 0.001");
+            }
+        }
+        }
+    }
+
+    pin(CSb0){
+        direction  : input; 
+        capacitance : 9.8242;  
+        timing(){ 
+            timing_type : setup_rising; 
+            related_pin  : "clk0"; 
+            rise_constraint(CONSTRAINT_TABLE) {
+            values("0.009, 0.009, 0.009",\
+                   "0.009, 0.009, 0.009",\
+                   "0.009, 0.009, 0.009");
+            }
+            fall_constraint(CONSTRAINT_TABLE) {
+            values("0.009, 0.009, 0.009",\
+                   "0.009, 0.009, 0.009",\
+                   "0.009, 0.009, 0.009");
+            }
+        }
+        timing(){ 
+            timing_type : hold_rising; 
+            related_pin  : "clk0"; 
+            rise_constraint(CONSTRAINT_TABLE) {
+            values("0.001, 0.001, 0.001",\
+                   "0.001, 0.001, 0.001",\
+                   "0.001, 0.001, 0.001");
+              }
+            fall_constraint(CONSTRAINT_TABLE) {
+            values("0.001, 0.001, 0.001",\
+                   "0.001, 0.001, 0.001",\
+                   "0.001, 0.001, 0.001");
+            }
+        }
+    }
+
+    pin(WEb0){
+        direction  : input; 
+        capacitance : 9.8242;  
+        timing(){ 
+            timing_type : setup_rising; 
+            related_pin  : "clk0"; 
+            rise_constraint(CONSTRAINT_TABLE) {
+            values("0.009, 0.009, 0.009",\
+                   "0.009, 0.009, 0.009",\
+                   "0.009, 0.009, 0.009");
+            }
+            fall_constraint(CONSTRAINT_TABLE) {
+            values("0.009, 0.009, 0.009",\
+                   "0.009, 0.009, 0.009",\
+                   "0.009, 0.009, 0.009");
+            }
+        }
+        timing(){ 
+            timing_type : hold_rising; 
+            related_pin  : "clk0"; 
+            rise_constraint(CONSTRAINT_TABLE) {
+            values("0.001, 0.001, 0.001",\
+                   "0.001, 0.001, 0.001",\
+                   "0.001, 0.001, 0.001");
+              }
+            fall_constraint(CONSTRAINT_TABLE) {
+            values("0.001, 0.001, 0.001",\
+                   "0.001, 0.001, 0.001",\
+                   "0.001, 0.001, 0.001");
+            }
+        }
+    }
+
+    pin(clk0){
+        clock             : true;
+        direction  : input; 
+        capacitance : 9.8242;  
+        internal_power(){
+            when : "!CSb0 & clk0 & !WEb0"; 
+            rise_power(scalar){
+                values("4.99880645");
+            }
+            fall_power(scalar){
+                values("4.99880645");
+            }
+        }
+        internal_power(){
+            when : "!CSb0 & !clk0 & WEb0"; 
+            rise_power(scalar){
+                values("4.99880645");
+            }
+            fall_power(scalar){
+                values("4.99880645");
+            }
+        }
+        internal_power(){
+            when : "CSb0"; 
+            rise_power(scalar){
+                values("0");
+            }
+            fall_power(scalar){
+                values("0");
+            }
+        }
+        timing(){ 
+            timing_type :"min_pulse_width"; 
+            related_pin  : clk0; 
+            rise_constraint(scalar) {
+                values("0.0295"); 
+            }
+            fall_constraint(scalar) {
+                values("0.0295"); 
+            }
+         }
+        timing(){ 
+            timing_type :"minimum_period"; 
+            related_pin  : clk0; 
+            rise_constraint(scalar) {
+                values("0.059"); 
+            }
+            fall_constraint(scalar) {
+                values("0.059"); 
+            }
+         }
+    }
+
+    }
+}

compiler/tests/golden/sram_2_16_1_scn4m_subm_TT_5p0V_25C.lib

@@ -93,7 +93,7 @@ cell (sram_2_16_1_scn4m_subm){
             address : ADDR0; 
             clocked_on  : clk0; 
         }
-        pin(DIN0){
+        pin(DIN0[1:0]){
         timing(){ 
             timing_type : setup_rising; 
             related_pin  : "clk0"; 
@@ -132,7 +132,7 @@ cell (sram_2_16_1_scn4m_subm){
         memory_read(){ 
             address : ADDR0; 
         }
-        pin(DOUT0){
+        pin(DOUT0[1:0]){
         timing(){ 
             timing_sense : non_unate; 
             related_pin : "clk0"; 
@@ -166,7 +166,7 @@ cell (sram_2_16_1_scn4m_subm){
         direction  : input; 
         capacitance : 9.8242;  
         max_transition       : 0.4;
-        pin(ADDR0){
+        pin(ADDR0[3:0]){
         timing(){ 
             timing_type : setup_rising; 
             related_pin  : "clk0"; 

compiler/tests/golden/sram_2_16_1_scn4m_subm_TT_5p0V_25C_analytical.lib

@@ -93,7 +93,7 @@ cell (sram_2_16_1_scn4m_subm){
             address : ADDR0; 
             clocked_on  : clk0; 
         }
-        pin(DIN0){
+        pin(DIN0[1:0]){
         timing(){ 
             timing_type : setup_rising; 
             related_pin  : "clk0"; 
@@ -132,7 +132,7 @@ cell (sram_2_16_1_scn4m_subm){
         memory_read(){ 
             address : ADDR0; 
         }
-        pin(DOUT0){
+        pin(DOUT0[1:0]){
         timing(){ 
             timing_sense : non_unate; 
             related_pin : "clk0"; 
@@ -166,7 +166,7 @@ cell (sram_2_16_1_scn4m_subm){
         direction  : input; 
         capacitance : 9.8242;  
         max_transition       : 0.4;
-        pin(ADDR0){
+        pin(ADDR0[3:0]){
         timing(){ 
             timing_type : setup_rising; 
             related_pin  : "clk0"; 

compiler/tests/golden/sram_2_16_1_scn4m_subm_TT_5p0V_25C_pruned.lib

@@ -93,7 +93,7 @@ cell (sram_2_16_1_scn4m_subm){
             address : ADDR0; 
             clocked_on  : clk0; 
         }
-        pin(DIN0){
+        pin(DIN0[1:0]){
         timing(){ 
             timing_type : setup_rising; 
             related_pin  : "clk0"; 
@@ -132,7 +132,7 @@ cell (sram_2_16_1_scn4m_subm){
         memory_read(){ 
             address : ADDR0; 
         }
-        pin(DOUT0){
+        pin(DOUT0[1:0]){
         timing(){ 
             timing_sense : non_unate; 
             related_pin : "clk0"; 
@@ -166,7 +166,7 @@ cell (sram_2_16_1_scn4m_subm){
         direction  : input; 
         capacitance : 9.8242;  
         max_transition       : 0.4;
-        pin(ADDR0){
+        pin(ADDR0[3:0]){
         timing(){ 
             timing_type : setup_rising; 
             related_pin  : "clk0"; 

compiler/tests/testutils.py

@@ -13,7 +13,7 @@ class openram_test(unittest.TestCase):
 
         self.reset()
 
-        tempgds = OPTS.openram_temp + "temp.gds"
+        tempgds = "{0}{1}.gds".format(OPTS.openram_temp,w.name)
         w.gds_write(tempgds)
         import verify
 
@@ -21,14 +21,15 @@ class openram_test(unittest.TestCase):
         if result != 0:
             self.fail("DRC failed: {}".format(w.name))
 
-        self.cleanup()
+        if OPTS.purge_temp:
+            self.cleanup()
     
     def local_check(self, a, final_verification=False):
 
         self.reset()
         
-        tempspice = OPTS.openram_temp + "temp.sp"
+        tempspice = "{0}{1}.sp".format(OPTS.openram_temp,a.name)
-        tempgds = OPTS.openram_temp + "temp.gds"
+        tempgds = "{0}{1}.gds".format(OPTS.openram_temp,a.name)
 
         a.sp_write(tempspice)
         # cannot write gds in netlist_only mode
@@ -36,7 +37,7 @@ class openram_test(unittest.TestCase):
             a.gds_write(tempgds)
 
             import verify
-            result=verify.run_drc(a.name, tempgds)
+            result=verify.run_drc(a.name, tempgds, extract=True, final_verification=final_verification)
             if result != 0:
                 #zip_file = "/tmp/{0}_{1}".format(a.name,os.getpid())
                 #debug.info(0,"Archiving failed files to {}.zip".format(zip_file))
@@ -44,7 +45,7 @@ class openram_test(unittest.TestCase):
                 self.fail("DRC failed: {}".format(a.name))
 
             
-            result=verify.run_lvs(a.name, tempgds, tempspice, final_verification)
+            result=verify.run_lvs(a.name, tempgds, tempspice, final_verification=final_verification)
             if result != 0:
                 #zip_file = "/tmp/{0}_{1}".format(a.name,os.getpid())
                 #debug.info(0,"Archiving failed files to {}.zip".format(zip_file))
@@ -54,6 +55,7 @@ class openram_test(unittest.TestCase):
         if OPTS.purge_temp:
             self.cleanup()
             
+
     def find_feasible_test_period(self, delay_obj, sram, load, slew):
         """Creates a delay simulation to determine a feasible period for the functional tests to run.
            Only determines the feasible period for a single port and assumes that for all ports for performance.
@@ -62,6 +64,9 @@ class openram_test(unittest.TestCase):
         delay_obj.set_load_slew(load, slew)
         delay_obj.set_probe(probe_address="1"*sram.addr_size, probe_data=(sram.word_size-1))
         test_port = delay_obj.read_ports[0] #Only test one port, assumes other ports have similar period.
+        delay_obj.create_signal_names()
+        delay_obj.create_measurement_names()
+        delay_obj.create_measurement_objects()
         delay_obj.find_feasible_period_one_port(test_port) 
         return delay_obj.period        
             

compiler/verify/assura.py

@@ -30,7 +30,7 @@ num_drc_runs = 0
 num_lvs_runs = 0
 num_pex_runs = 0
 
-def run_drc(name, gds_name):
+def run_drc(name, gds_name, final_verification=False):
     """Run DRC check on a given top-level name which is
        implemented in gds_name."""
 
@@ -93,7 +93,7 @@ def run_drc(name, gds_name):
     return errors
 
 
-def run_lvs(name, gds_name, sp_name):
+def run_lvs(name, gds_name, sp_name, final_verification=False):
     """Run LVS check on a given top-level name which is
        implemented in gds_name and sp_name. """
 
@@ -178,7 +178,7 @@ def run_lvs(name, gds_name, sp_name):
     return errors
 
 
-def run_pex(name, gds_name, sp_name, output=None):
+def run_pex(name, gds_name, sp_name, output=None, final_verification=False):
     """Run pex on a given top-level name which is
        implemented in gds_name and sp_name. """
     debug.error("PEX extraction not implemented with Assura.",-1)

compiler/verify/calibre.py

@@ -126,9 +126,9 @@ def run_drc(cell_name, gds_name, extract=False, final_verification=False):
     f.close()
     # those lines should be the last 3
     results = results[-3:]
-    geometries = int(re.split("\W+", results[0])[5])
+    geometries = int(re.split(r'\W+', results[0])[5])
-    rulechecks = int(re.split("\W+", results[1])[4])
+    rulechecks = int(re.split(r'\W+', results[1])[4])
-    errors = int(re.split("\W+", results[2])[5])
+    errors = int(re.split(r'\W+', results[2])[5])
 
     # always display this summary
     if errors > 0:
@@ -227,7 +227,7 @@ def run_lvs(cell_name, gds_name, sp_name, final_verification=False):
     incorrect = list(filter(test.search, results))
 
     # Errors begin with "Error:"
-    test = re.compile("\s+Error:")
+    test = re.compile(r'\s+Error:')
     errors = list(filter(test.search, results))
     for e in errors:
         debug.error(e.strip("\n"))
@@ -282,7 +282,7 @@ def run_lvs(cell_name, gds_name, sp_name, final_verification=False):
     return total_errors
 
 
-def run_pex(cell_name, gds_name, sp_name, output=None):
+def run_pex(cell_name, gds_name, sp_name, output=None, final_verification=False):
     """Run pex on a given top-level name which is
        implemented in gds_name and sp_name. """
 
@@ -363,7 +363,7 @@ def correct_port(name, output_file_name, ref_file_name):
     pex_file.seek(match_index_start)
     rest_text = pex_file.read()
     # locate the end of circuit definition line
-    match = re.search("\* \n", rest_text)
+    match = re.search(r'\* \n', rest_text)
     match_index_end = match.start()
     # store the unchanged part of pex file in memory
     pex_file.seek(0)

compiler/verify/magic.py

@@ -45,7 +45,10 @@ def write_magic_script(cell_name, gds_name, extract=False, final_verification=Fa
     #f.write("load {}_new\n".format(cell_name))
     #f.write("cellname rename {0}_new {0}\n".format(cell_name))
     #f.write("load {}\n".format(cell_name))
+    f.write("cellname delete \\(UNNAMED\\)\n")
     f.write("writeall force\n")
+    f.write("select top cell\n")
+    f.write("expand\n")
     f.write("drc check\n")
     f.write("drc catchup\n")
     f.write("drc count total\n")
@@ -55,14 +58,26 @@ def write_magic_script(cell_name, gds_name, extract=False, final_verification=Fa
     else:
         pre = ""
     if final_verification:
-        f.write(pre+"extract unique\n")
+        f.write(pre+"extract unique all\n".format(cell_name))
-    f.write(pre+"extract\n")
+    f.write(pre+"extract\n".format(cell_name))
+    #f.write(pre+"ext2spice hierarchy on\n")        
+    #f.write(pre+"ext2spice scale off\n")
+    # lvs exists in 8.2.79, but be backword compatible for now
+    #f.write(pre+"ext2spice lvs\n")
     f.write(pre+"ext2spice hierarchy on\n")
+    f.write(pre+"ext2spice format ngspice\n")
+    f.write(pre+"ext2spice cthresh infinite\n")
+    f.write(pre+"ext2spice rthresh infinite\n")
+    f.write(pre+"ext2spice renumber off\n")
     f.write(pre+"ext2spice scale off\n")
+    f.write(pre+"ext2spice blackbox on\n")
+    f.write(pre+"ext2spice subcircuit top auto\n")
+    f.write(pre+"ext2spice global off\n")
+    
     # Can choose hspice, ngspice, or spice3,
     # but they all seem compatible enough.
     #f.write(pre+"ext2spice format ngspice\n")
-    f.write(pre+"ext2spice\n")
+    f.write(pre+"ext2spice {}\n".format(cell_name))
     f.write("quit -noprompt\n")
     f.write("EOF\n")
         
@@ -136,15 +151,20 @@ def run_drc(cell_name, gds_name, extract=True, final_verification=False):
     # etc.
     try:
         f = open(outfile, "r")
-    except:
+    except FileNotFoundError:
-        debug.error("Unable to retrieve DRC results file. Is magic set up?",1)
+        debug.error("Unable to load DRC results file from {}. Is magic set up?".format(outfile),1)
+        
     results = f.readlines()
     f.close()
+    errors=1
     # those lines should be the last 3
     for line in results:
         if "Total DRC errors found:" in line:
             errors = int(re.split(": ", line)[1])
             break
+    else:
+        debug.error("Unable to find the total error line in Magic output.",1)
+            
 
     # always display this summary
     if errors > 0:
@@ -185,7 +205,11 @@ def run_lvs(cell_name, gds_name, sp_name, final_verification=False):
     total_errors = 0
     
     # check the result for these lines in the summary:
-    f = open(resultsfile, "r")
+    try:
+        f = open(resultsfile, "r")
+    except FileNotFoundError:
+        debug.error("Unable to load LVS results from {}".format(resultsfile),1)
+                    
     results = f.readlines()
     f.close()
     # Look for the results after the final "Subcircuit summary:"
@@ -235,7 +259,7 @@ def run_lvs(cell_name, gds_name, sp_name, final_verification=False):
     return total_errors
 
 
-def run_pex(name, gds_name, sp_name, output=None):
+def run_pex(name, gds_name, sp_name, output=None, final_verification=False):
     """Run pex on a given top-level name which is
        implemented in gds_name and sp_name. """
 

compiler/verify/none.py

@@ -9,7 +9,7 @@ drc_warned = False
 lvs_warned = False
 pex_warned = False
 
-def run_drc(cell_name, gds_name, extract=False):
+def run_drc(cell_name, gds_name, extract=False, final_verification=False):
     global drc_warned
     if not drc_warned:
         debug.warning("DRC unable to run.")
@@ -25,7 +25,7 @@ def run_lvs(cell_name, gds_name, sp_name, final_verification=False):
     # Since we warned, return a failing test.
     return 1
 
-def run_pex(name, gds_name, sp_name, output=None):
+def run_pex(name, gds_name, sp_name, output=None, final_verification=False):
     global pex_warned    
     if not pex_warned:
         debug.warning("PEX unable to run.")

docs/Makefile

@@ -1,6 +0,0 @@
-all: openram_manual.tex 
-	pdflatex openram_manual
-bib:
-	bibtex openram_manual
-clean:
-	rm -f openram_manual.pdf *.aux *.bbl *.blq *.dvi *.log *.lot *.toc *.lof *.blg

docs/control.tex

@@ -1,4 +0,0 @@
-\section{Internal Control Signals}
-\label{sec:control}
-
-This section not needed... All information is in Section~\ref{sec:timing} (Timing).

docs/debug.tex

@@ -1,49 +0,0 @@
-\section{Debug Framework}
-\label{sec:debug}
-
-All output in OpenRAM should use the shared debug framework. This is
-still under development but is in a usable state. It is going to be
-replaced with the Python Logging framework which is quite simple.
-
-All of the debug framework is contained in debug.py and is based
-around the concept of a ``debug level'' which is a single global
-variable in this file. This level is, by default, 0 which will output
-normal minimal output. The general guidelines for debug output are:
-\begin{itemize}
-\item 0 Normal output
-\item 1 Verbose output
-\item 2 Detailed output
-\item 3+ Excessively detailed output
-\end{itemize}
-
-The debug level can be adjusted on the command line when arguments are parsed using the ``-v'' flag. Adding more ``-v'' flags will increase the debug level as in the following examples:
-\begin{verbatim}
-python tests/01_library_drc_test.py -vv
-python openram.py 4 16 -v -v
-\end{verbatim}
-which each put the program in debug level 2 (detailed output).
-
-Since every module may output a lot of information in the higher debug
-levels, the output format is standardized to allow easy searching via
-grep or other command-line tools. The standard output formatting is
-used through three interface functions: 
-\begin{itemize}
-\item debug.info(int, msg)
-\item debug.warning(msg)
-\item debug.error(msg)
-\end{itemize}
-The msg string in each case can be any string format including data or
-other useful debug information. The string should also contain
-information to make it human understandable. {\bf It should not just be
-  a number!} The warning and error messages are independent of debug
-levels while the info message will only print the message if the
-current debug level is above the parameter value.
-
-The output format of the debug info messages are:
-\begin{verbatim}
-[ module ]:  msg
-\end{verbatim}
-where module is the calling module name and msg is the string
-provided. This enables a grep command to get the relevant lines.  The
-warning and error messages include the file name and line number of
-the warning/error.

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