From 2f353187ba3a87ef465c65b82ba81174201f8c5e Mon Sep 17 00:00:00 2001
From: mrg <mrg@ucsc.edu>
Date: Tue, 24 Mar 2020 12:41:15 -0700
Subject: [PATCH] Skywater extraction mode for si unit scales

---
 compiler/pgates/ptx.py   |  2 +-
 compiler/verify/magic.py | 36 +++++++++++++++++++-----------------
 2 files changed, 20 insertions(+), 18 deletions(-)

diff --git a/compiler/pgates/ptx.py b/compiler/pgates/ptx.py
index dee475c9..8fbb94d8 100644
--- a/compiler/pgates/ptx.py
+++ b/compiler/pgates/ptx.py
@@ -99,7 +99,7 @@ class ptx(design.design):
             body_dir = 'POWER'
         dir_list = ['INOUT', 'INPUT', 'INOUT', body_dir]
         self.add_pin_list(pin_list, dir_list)
-        
+
         # self.spice.append("\n.SUBCKT {0} {1}".format(self.name,
         #                                              " ".join(self.pins)))
         # Just make a guess since these will actually
diff --git a/compiler/verify/magic.py b/compiler/verify/magic.py
index 63aeaabe..1d3562cc 100644
--- a/compiler/verify/magic.py
+++ b/compiler/verify/magic.py
@@ -22,7 +22,6 @@ and include its appropriate license.
 
 import os
 import re
-import time
 import shutil
 import debug
 from globals import OPTS
@@ -67,26 +66,29 @@ def write_magic_script(cell_name, extract=False, final_verification=False):
     else:
         pre = ""
     if final_verification:
-        f.write(pre+"extract unique all\n".format(cell_name))
-    f.write(pre+"extract\n".format(cell_name))
-    #f.write(pre+"ext2spice hierarchy on\n")
-    #f.write(pre+"ext2spice scale off\n")
+        f.write(pre + "extract unique all\n".format(cell_name))
+    # Hack to work around unit scales in SkyWater
+    if OPTS.tech_name=="s8":
+        f.write(pre + "extract style ngspice(si)\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")
+    # 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".format(cell_name))
+    #f.write(pre + "ext2spice format ngspice\n")
+    f.write(pre + "ext2spice {}\n".format(cell_name))
     f.write("quit -noprompt\n")
     f.write("EOF\n")