altered bitcell, pbitcell, and bitcell array modules to accomodate additional bitline reference functions

compiler/modules/bitcell.py

@@ -62,10 +62,20 @@ class bitcell(design.design):
         return row_pins
     
     
-    def list_column_pins(self):
+    def list_all_column_pins(self):
         """ Creates a list of all column pins (except for gnd and vdd) """
         column_pins = ["bl", "br"]
         return column_pins
+    
+    def list_column_pins(self):
+        """ Creates a list of all column pins (except for gnd and vdd) """
+        column_pins = ["bl"]
+        return column_pins
+        
+    def list_column_bar_pins(self):
+        """ Creates a list of all column pins (except for gnd and vdd) """
+        column_pins = ["br"]
+        return column_pins
         
     def list_read_column_pins(self):
         """ Creates a list of column pins associated with read ports """

compiler/modules/bitcell_array.py

@@ -43,7 +43,7 @@ class bitcell_array(design.design):
 
     def add_pins(self):
         row_list = self.cell.list_row_pins()
-        column_list = self.cell.list_column_pins()
+        column_list = self.cell.list_all_column_pins()
         for col in range(self.column_size):
             for cell_column in column_list:
                 self.add_pin(cell_column+"[{0}]".format(col))
@@ -80,8 +80,10 @@ class bitcell_array(design.design):
 
     def add_layout_pins(self):
         """ Add the layout pins """
-                
-        column_list = self.cell.list_column_pins()
+        
+        row_list = self.cell.list_row_pins()
+        column_list = self.cell.list_all_column_pins()
+        
         offset = vector(0.0, 0.0)
         for col in range(self.column_size):
             for cell_column in column_list:
@@ -95,7 +97,6 @@ class bitcell_array(design.design):
             # increments to the next column width
             offset.x += self.cell.width
 
-        row_list = self.cell.list_row_pins()
         offset.x = 0.0
         for row in range(self.row_size):
             for cell_row in row_list: