blob: 02e3bb7dfdc5a956cd7b067b74ddd908d86f84cf [file] [log] [blame]
#!/usr/bin/env python3
"""
cdl2spi.py : netlist processor
Copyright (c) 2016, 2020 efabless Corporation.
All rights reserved.
usage: cdl2spi.py <inCDLfile> [<outSPCfile>] [options...]
Writes to .spi to outSPCfile, or stdout if no output argument given. Sets exit
status if there were non-zero errors. Most errors/warnings are annotated in-line
in the stdout each before the relevant line.
"""
import sys, getopt
import os
import re
import textwrap
# Convert linear scale to area scale suffix
# (e.g., if linear scale is 1e-6 ('u') then area scales as 1e-12 ('p'))
def getAreaScale(dscale):
ascale = ''
if dscale == 'm':
ascale = 'u'
elif dscale == 'u':
ascale = 'p'
elif dscale == 'n':
ascale = 'a'
return ascale
# Check nm (instanceName) in the context of sub (subckt): is it used yet?
# If not used yet, mark it used, and return as-is.
# Else generate a unique suffixed version, and mark it used, return it.
# If 1M suffixes don't generate a unique name, throw exception.
# hasInm : global hash, key of hash is (subckt, iname)
hasInm = {}
def uniqInm(sub, nm):
subl=sub.lower()
nml=nm.lower()
if not (subl, nml) in hasInm:
hasInm[ (subl, nml) ] = 1
return nm
for i in range(1000000):
nm2 = nm + "_q" + str(i)
nm2l = nm2.lower()
if not (subl, nm2l) in hasInm:
hasInm[ (subl, nm2l) ] = 1
return nm2
# not caught anywhere, and gives (intended) non-zero exit status
raise AssertionError("uniqInm: range overflow for (%s,%s)" % (sub, nm))
# Map illegal characters in an nm (instanceName) in context of sub (subckt).
# For ngspice, '/' is illegal in instanceNames. Replace it with '|', BUT
# then make sure the new name is still unique: does not collide with a name
# used so far or another already derived unique name.
inmBadChars='/'
inmRplChars='|'
inmBadCharREX=re.compile( "["+ inmBadChars+"]" )
def mapInm(sub, nm):
nm2 = inmBadCharREX.sub(inmRplChars, nm)
return uniqInm(sub, nm2)
# Process subckt line (array of tokens). Return new array of tokens.
# There might be a ' /' in the line that needs to be deleted. It may be standalone ' / ', or
# butting against the next token. It may be before all pins, after all pins, or between pins.
# Do not touch / in a parameter assignment expression.
# Do not touch / embedded in a pinName.
# May touch / butting front of very first parameter assignment expression.
# .subckt NM / p1 p2 p3 x=y g=h
# .subckt NM /p1 p2 p3 x=y g=h
# .subckt NM p1 p2 / p3 x=y g=h
# .subckt NM p1 p2 /p3 x=y g=h
# .subckt NM p1 p2 p3 / x=y g=h
# .subckt NM p1 p2 p3 /x=y g=h
# .subckt NM p1 p2 p3 x=y g=(a/b) (don't touch this /)
# .subckt NM p1 p2/3/4 p3 x=y g=(a/b) (don't touch these /)
def mapSubcktDef(tok):
# find index of one-past first token (beyond ".subckt NM") containing an =, if any
param0 = len(tok)
for i in range(2, len(tok)):
if '=' in tok[i]:
param0 = i+1
break
# find first token before or including that 1st-param, starting with /:
# strip the slash.
for i in range(2, param0):
if tok[i][0] == '/':
tok[i] = tok[i][1:]
if tok[i] == "":
del tok[i]
break
return tok
def test_mapSubcktInst1():
print( " ".join(mapSubcktDef( ".subckt abc p1 p2 p3".split())))
print( " ".join(mapSubcktDef( ".subckt abc / p1 p2 p3".split())))
print( " ".join(mapSubcktDef( ".subckt abc /p1 p2 p3".split())))
print( " ".join(mapSubcktDef( ".subckt abc p1 p2 /p3".split())))
print( " ".join(mapSubcktDef( ".subckt abc p1 p2 / p3".split())))
print( " ".join(mapSubcktDef( ".subckt abc p1 p2 p3 x=4 /y=5".split())))
print( " ".join(mapSubcktDef( ".subckt abc p1 p2 p3 x=4/2 y=5".split())))
print( " ".join(mapSubcktDef( ".subckt abc p1 p2 p3 / x=4/2 y=5".split())))
print( " ".join(mapSubcktDef( ".subckt abc p1 p2 p3 x=4/2 /y=5".split())))
print( " ".join(mapSubcktDef( ".subckt abc p1 p2 p3 /x=4/2 y=5".split())))
print( " ".join(mapSubcktDef( ".subckt abc p1/2/3 p2 p3 /x=4/2 y=5".split())))
# Process subckt instance line (array of tokens). Return new array of tokens.
# (This function does not map possible illegal-chars in instanceName).
# There might be a ' /' in the line that needs to be deleted. It may be standalone ' / ', or
# butting against the next token. It can only be after pins, before or butting subcktName.
#
# Do not touch / in, butting, or after 1st parameter assignment expression.
# Do not touch / embedded in a netName.
# Do not touch / embedded in instanceName (they are handled separately elsewhere).
# xa/b/c p1 p2 p3 / NM x=y g=h
# xa/b/c p1 p2 p3 /NM x=y g=h
# xabc p1 p2/3/4 p3 /NM x=(a/b) g=h
# xabc p1 p2/3/4 p3 / NM x=(a/b) g=h
# xabc p1 p2/3/4 p3 NM x=(a/b) / g=h (don't touch; perhaps needs to be an error trapped somewhere)
# xabc p1 p2/3/4 p3 NM / x=(a/b) g=h (don't touch; perhaps needs to be an error trapped somewhere)
# xa/b/c p1 p2/3/4 p3 NM x=(a/b) g=h (don't touch these /)
def mapSubcktInst(tok):
# find index of first token (beyond "x<iname>") containing an =, if any
param0 = tlen = len(tok)
for i in range(1, tlen):
if '=' in tok[i]:
param0 = i
break
# Determine modelName index. Either just prior to 1st-param (if any) else last token.
modndx = tlen - 1
if param0 < tlen:
modndx = param0 - 1;
# If modndx now points to a standalone /, that can't be (would yield missing/empty modelName).
# Actual modelName must be before it. We need to check, possibly strip / on/before actual modelName.
# (Even though standlone / after model are most likely an independent error: we don't touch 'em).
while modndx > 1 and tok[modndx] == "/":
modndx-=1
# Check for standalone / before modelName. Else for modelName starting with /.
slashndx = modndx - 1
if slashndx > 0 and tok[slashndx] == "/":
del tok[slashndx]
else:
if modndx > 0 and tok[modndx].startswith("/"):
tok[modndx] = tok[modndx][1:]
return tok
def test_mapSubcktInst2():
print( " ".join(mapSubcktInst( "xa/b/c p1 p2 p3 / NM x=y g=h".split())))
print( " ".join(mapSubcktInst( "xa/b/c p1 p2 p3 /NM x=y g=h".split())))
print( " ".join(mapSubcktInst( "xabc p1 p2/3/4 p3 /NM x=(a/b) g=h".split())))
print( " ".join(mapSubcktInst( "xabc p1 p2/3/4 p3 / NM x=(a/b) g=h".split())))
print( " ".join(mapSubcktInst( "xabc p1 p2/3/4 p3 NM x=(a/b) / g=h".split())))
print( " ".join(mapSubcktInst( "xabc p1 p2/3/4 p3 NM / x=(a/b) g=h".split())))
print( " ".join(mapSubcktInst( "xabc p1 p2/3/4 p3 /NM / x=(a/b) g=h".split())))
print( " ".join(mapSubcktInst( "xabc p1 p2/3/4 p3 / NM / x=(a/b) g=h".split())))
print( " ".join(mapSubcktInst( "xa/b/c p1 p2/3/4 p3 NM x=(a/b) g=h".split())))
print( " ".join(mapSubcktInst( "xa/b/c NM x=(a/b) g=h".split())))
print( " ".join(mapSubcktInst( "xa/b/c / NM x=(a/b) g=h".split())))
print( " ".join(mapSubcktInst( "xa/b/c /NM x=(a/b) g=h".split())))
print( " ".join(mapSubcktInst( "xa/b/c /NM".split())))
# Primitives with M=<n> need to add additional par1=<n>.
# Process token list, return new token list.
# note: line at this point may be like: m... p1 p2 p3 p4 NMOS M=1 $blah W=... L=...
# meaning M=1 is not necessarily in a block of all parameter-assignments at EOL.
# But by processing the line from end backwards, we pick up LAST M= if there are
# multiple (which condition really should get flagged as an error).
# And M= is more likely towards end of the line than front of line (thus faster).
# If "M=" with no value, do nothing (should also be a flagged error).
def mapMfactor(tok, options={}):
# find index of M=* if any, starting from end.
# "addinm" is an additional parameter that takes the same argument as M
addinm = options['addinm'] if 'addinm' in options else []
mndx = 0
val = ""
for i in range(len(tok)-1, 0, -1):
if tok[i].lower().startswith("m="):
mndx = i
break
if mndx > 0:
val = tok[i][2:]
if val != "":
for p in addinm:
tok += [ addinm + val]
return tok
def test_mapMfactor():
print( " ".join(mapMfactor( "m1 p1 p2 p3 p4 NM M=joe".split())))
print( " ".join(mapMfactor( "m1 p1 p2 p3 p4 NM M= $SUB=agnd".split())))
print( " ".join(mapMfactor( "m1 p1 p2 p3 p4 NM M=2 $SUB=agnd WM=4".split())))
print( " ".join(mapMfactor( "m1 p1 p2 p3 p4 NM".split())))
# From $nm=... strip the $. Preserve order on the line. No attempt to
# detect any resultant collisions. "W=5 $W=10" becomes "W=5 W=10".
# Don't touch $SUB=... or $[...] or $.model=... or $blah (no assigment).
def mapCDLparam(tok):
for i in range(1, len(tok)):
if not tok[i].startswith("$"):
continue
eqi = tok[i].find("=")
if eqi > 1:
pnm = tok[i][1:eqi]
pnml = pnm.lower()
if pnml in ("sub",".model"):
continue
tok[i] = tok[i][1:]
return tok
def test_CDLparam():
print( " ".join(mapCDLparam( "m1 p1 p2 p3 p4 NM M=joe".split())))
print( " ".join(mapCDLparam( "m1 p1 p2 p3 p4 NM M= $SUB=agnd $.model=NM3 $LDD".split())))
print( " ".join(mapCDLparam( "m1 p1 p2 p3 p4 NM M= $SUB=agnd $[NM3]".split())))
print( " ".join(mapCDLparam( "m1 p1 p2 p3 p4 NM M=joe $X=y".split())))
print( " ".join(mapCDLparam( "m1 p1 p2 p3 p4 NM M= $SUB=agnd $.model=NM3 $Z=4 $Z=5".split())))
print( " ".join(mapCDLparam( "m1 p1 p2 p3 p4 NM M= W=1 $W=2 W=3 $SUB=agnd $[NM3]".split())))
# Extract $SUB=<tname>. and $[mnm] (or $.model=<mnm>) from tokens.
# Return array of three items: [ <tname>, <mnm>, tok ] where tok is remainder.
# Absent $SUB= or model directives give "".
# Since we delete tokens, process tokens in reverse order.
def mapCDLtermModel(tok):
cdlTerm=""
cdlModel=""
for i in range(len(tok)-1, 0, -1):
if not tok[i].startswith("$"):
continue
tokl = tok[i].lower()
if tokl.startswith("$sub="):
if cdlTerm == "":
cdlTerm = tok[i][5:]
del tok[i]
continue
if tokl.startswith("$.model="):
if cdlModel == "":
cdlModel = tok[i][8:]
del tok[i]
continue
if tokl.startswith("$[") and tokl.endswith("]"):
if cdlModel == "":
cdlModel = tok[i][2:-1]
del tok[i]
continue
return [ cdlTerm, cdlModel, tok ]
def test_CDLtermModel():
print( mapCDLtermModel( "m1 p1 p2 p3 p4 NM M=joe".split()))
print( mapCDLtermModel( "m1 p1 p2 p3 p4 NM $SUB=agnd".split()))
print( mapCDLtermModel( "m1 p1 p2 p3 p4 NM $SUB= $[PMOS] M=joe".split()))
print( mapCDLtermModel( "m1 p1 p2 p3 p4 NM $sUb=vssa $.MoDeL=PM4 M=joe".split()))
# Determine if a single word looks like a plain numeric spice value.
# It means a real-number with optional scale suffix, and optional unit suffix.
# Only unit-suffix we support is m (meters) (because CDL-std describes it).
# Only scale factors supported are: t,g,meg,k,mil,m,u,n,p,f
# This does not arithmetically compute anything.
# Just returns True or False.
# 220p 10nm -40g 2milm .34e+3 3.1e-4 .34e+3pm 3.1e-4meg
# (Arguable we should strip a unit-suffix)?
# def isPlainNumeric(word):
# Segregate any remaining $* items from input tokens.
# Return [ assignments, directives, remaining ] where each are lists.
# Those that look like assigments $nm=... are separated from $blah.
def mapDiscard(tok):
tlen = len(tok)
assign=[]
directive=[]
for i in range(len(tok)-1, 0, -1):
if not tok[i].startswith("$"):
continue
if "=" in tok[i]:
assign += [ tok[i] ]
del tok[i]
continue
directive += [ tok[i] ]
del tok[i]
return [ assign, directive, tok ]
def test_mapDiscard():
print( mapDiscard( "m1 p1 p2 p3 p4 NM $X=4 $LDD M=joe $SUB=agnd ".split()))
print( mapDiscard( "m1 p1 p2 p3 p4 NM $X $LDD M=joe $SUB=agnd ".split()))
print( mapDiscard( "m1 p1 p2 p3 p4 NM M=joe SUB=agnd ".split()))
# From a token-slice, partition into assignments and non-assignments.
# Return [ assigns, nonAssigns] where each are lists.
def mapPartAssign(tok):
tlen = len(tok)
assign=[]
nona=[]
for i in range(len(tok)):
if "=" in tok[i]:
assign += [ tok[i] ]
continue
nona += [ tok[i] ]
return [ assign, nona ]
def test_mapPartAssign():
print( mapPartAssign( "NM X=4 220nm -1.2e-5g LDD M=joe".split()))
print( mapPartAssign( "X=4 M=joe".split()))
print( mapPartAssign( "NM 220nm -1.2e-5g LDD".split()))
print( mapPartAssign( "".split()))
# Find an assignment to nm in the token list (nm=val).
# Return [val, tok]. If edit is True, the nm=val is removed from return tok.
# If multiple nm=... the last one is used. If del is True, all nm=... are removed.
def mapLookup(tok, nm, edit):
tlen = len(tok)
val=""
nmeq = nm.lower() + "="
nmeqlen = len(nmeq)
for i in range(len(tok)-1, 0, -1):
if not tok[i].lower().startswith(nmeq):
continue
if val == "":
val = tok[i][nmeqlen:]
if edit:
del tok[i]
return [ val, tok ]
def test_mapLookup():
print( mapLookup( "cnm t1 t2 area=220p PERimeter=100u M=joe par1=1".split(), "periMETER", True))
print( mapLookup( "m1 p1 p2 p3 p4 NM $X=4 $LDD M=joe $SUB=agnd ".split(), "x", True))
print( mapLookup( "m1 p1 p2 p3 p4 NM X=4 $LDD M=joe $SUB=agnd ".split(), "x", True))
print( mapLookup( "m1 p1 p2 p3 p4 NM x=4 $LDD M=joe $SUB=agnd ".split(), "x", True))
print( mapLookup( "m1 p1 p2 p3 p4 NM x=4 X=5 xy=6 $LDD M=joe $SUB=agnd ".split(), "x", True))
print( mapLookup( "m1 p1 p2 p3 p4 NM x=4 X=5 xy=6 $LDD M=joe $SUB=agnd ".split(), "x", False))
# Format a diode. cdlTerm and cdlModel are passed in but ignored/unused.
# Processes tok and returns a final token list to be output.
# If after "dnm t1 t2 modelName ", there are plain numerics (index 4,5), take them as area and peri,
# (override other area= peri= parameters), format them as area=... peri=...
# (Caller already error checked the 1st minimum FOUR fields are there).
def mapDiode(cdlTerm, cdlModel, tok, options={}):
ignore = options['ignore'] if 'ignore' in options else []
# strip remaining $* directives
[ ign, ign, tok ] = mapDiscard(tok)
# Find explicit area= peri=, remove from tok.
[area, tok] = mapLookup(tok, "area", True)
[peri, tok] = mapLookup(tok, "peri", True)
for p in ignore:
[ign, tok] = mapLookup(tok, p, True)
# For just token-slice after modelName, partition into assignments and non-assigns.
[assign, nona] = mapPartAssign(tok[4:])
tok = tok[0:4]
# TODO: If we have more than two non-assignments it should be an error?
# Override area/peri with 1st/2nd non-assigment values.
if len(nona) > 0:
area = nona.pop(0)
if len(nona) > 0:
peri = nona.pop(0)
if area != "":
tok += [ "area=" + area ]
if peri != "":
tok += [ "peri=" + peri ]
tok += nona
tok += assign
return tok
def test_mapDiode():
print( mapDiode( "", "", "dnm t1 t2 DN 220p 100u M=joe par1=1".split()))
print( mapDiode( "", "", "dnm t1 t2 DN peri=100u area=220p M=joe par1=1".split()))
print( mapDiode( "", "", "dnm t1 t2 DN M=joe par1=1".split()))
# Format a mosfet. cdlTerm and cdlModel are passed in but ignored/unused.
# Processes tok and returns a final token list to be output.
# If after "mnm t1 t2 t3 t4 modelName ", there are plain numerics (index 6,7), take them as W and L,
# (override other W= L= parameters), format them as W=... L=...
# (Caller already error checked the 1st minimum SIX fields are there).
def mapMos(cdlTerm, cdlModel, tok, options={}):
ignore = options['ignore'] if 'ignore' in options else []
# strip remaining $* directives
[ ign, ign, tok ] = mapDiscard(tok)
# Find explicit W= L=, remove from tok.
[w, tok] = mapLookup(tok, "w", True)
[l, tok] = mapLookup(tok, "l", True)
for p in ignore:
[ign, tok] = mapLookup(tok, p, True)
# For scaling, find AS, PS, AD, PD, SA, SB, SC, and SD
[sarea, tok] = mapLookup(tok, "as", True)
[darea, tok] = mapLookup(tok, "ad", True)
[sperim, tok] = mapLookup(tok, "ps", True)
[dperim, tok] = mapLookup(tok, "pd", True)
[sa, tok] = mapLookup(tok, "sa", True)
[sb, tok] = mapLookup(tok, "sb", True)
[sd, tok] = mapLookup(tok, "sd", True)
dscale = options['dscale'] if 'dscale' in options else ''
ascale = getAreaScale(dscale)
# For just token-slice after modelName, partition into assignments and non-assigns.
[assign, nona] = mapPartAssign(tok[6:])
tok = tok[0:6]
# TODO: If we have more than two non-assignments it should be an error?
# Override W/L with 1st/2nd non-assigment values.
if len(nona) > 0:
w = nona.pop(0)
if len(nona) > 0:
l = nona.pop(0)
if w != "":
tok += ["W=" + w + dscale]
if l != "":
tok += ["L=" + l + dscale]
if darea != "":
tok += ["AD=" + darea + ascale]
if sarea != "":
tok += ["AS=" + sarea + ascale]
if dperim != "":
tok += ["PD=" + dperim + dscale]
if sperim != "":
tok += ["PS=" + sperim + dscale]
if sa != "":
tok += ["SA=" + sa + dscale]
if sb != "":
tok += ["SB=" + sb + dscale]
if sd != "":
tok += ["SD=" + sd + dscale]
tok += nona
tok += assign
return tok
def test_mapMos():
print( mapMos( "", "", "mnm t1 t2 t3 t4 NM 220p 100u M=joe par1=1".split()))
print( mapMos( "", "", "mnm t1 t2 t3 t4 NM L=100u W=220p M=joe par1=1".split()))
print( mapMos( "", "", "mnm t1 t2 t3 t4 PM M=joe par1=1".split()))
# Format a cap.
# Processes tok and returns a final token list to be output.
# Optional cdlTerm adds a 3rd terminal.
# If after "cnm t1 t2 ", there is plain numeric or C=numeric they are DISCARDED.
# area/peri/perimeter assignments are respected. Both peri/perimeter assign to perm=
# in the output. No perimeter= appears in the output.
# (Caller already error checked the 1st minimum 3 fields are there; plus cdlModel is non-null).
def mapCap(cdlTerm, cdlModel, tok, options={}):
ignore = options['ignore'] if 'ignore' in options else []
# strip remaining $* directives
[ ign, ign, tok ] = mapDiscard(tok)
# Find explicit area= peri= perimeter=, remove from tok. peri overwrites perimeter,
# both assign to perim. Lookup/discard a C=.
[area, tok] = mapLookup(tok, "area", True)
[perim, tok] = mapLookup(tok, "perimeter", True)
[length, tok] = mapLookup(tok, "l", True)
[width, tok] = mapLookup(tok, "w", True)
[peri, tok] = mapLookup(tok, "peri", True)
if peri == "":
peri = perim
[ign, tok] = mapLookup(tok, "c", True)
for p in ignore:
[ign, tok] = mapLookup(tok, p, True)
# For just token-slice after modelName, partition into assignments and non-assigns.
# We ignore the nonassignments. Need remaining assignments for M= par1=.
[assign, nona] = mapPartAssign(tok[3:])
dscale = options['dscale'] if 'dscale' in options else ''
ascale = getAreaScale(dscale)
tok = tok[0:3]
if cdlTerm != "":
tok += [ cdlTerm ]
if cdlModel != "":
tok += [ cdlModel ]
if area != "":
tok += [ "area=" + area + ascale]
if peri != "":
tok += [ "peri=" + peri + dscale]
if length != "":
tok += [ "L=" + length + dscale]
if width != "":
tok += [ "W=" + width + dscale]
tok += assign
return tok
def test_mapCap():
print( mapCap( "", "CPP", "cnm t1 t2 area=220p peri=100u M=joe par1=1".split()))
print( mapCap( "", "CPP", "cnm t1 t2 area=220p perimeter=100u M=joe par1=1".split()))
print( mapCap( "", "CPP", "cnm t1 t2 area=220p peri=199u perimeter=100u M=joe par1=1".split()))
print( mapCap( "", "CPP", "cnm t1 t2 M=joe par1=1".split()))
print( mapCap( "", "CPP", "cnm t1 t2 C=444 area=220p peri=199u perimeter=100u M=joe par1=1".split()))
print( mapCap( "", "CPP", "cnm t1 t2 444 M=joe par1=1".split()))
print( mapCap( "agnd", "CPP2", "cnm t1 t2 $LDD 220p M=joe par1=1".split()))
# Format a res.
# Processes tok and returns a final token list to be output.
# Optional cdlTerm adds a 3rd terminal.
# If after "rnm t1 t2 ", there is plain numeric or R=numeric they are DISCARDED.
# W/L assignments are respected.
# (Caller already error checked the 1st minimum 3 fields are there; plus cdlModel is non-null).
def mapRes(cdlTerm, cdlModel, tok, options={}):
dscale = options['dscale'] if 'dscale' in options else ''
ignore = options['ignore'] if 'ignore' in options else []
# strip remaining $* directives
[ ign, ign, tok ] = mapDiscard(tok)
# Find explicit w/l, remove from tok.
# Lookup/discard a R=.
[w, tok] = mapLookup(tok, "w", True)
[l, tok] = mapLookup(tok, "l", True)
[r, tok] = mapLookup(tok, "r", True)
for p in ignore:
[ign, tok] = mapLookup(tok, p, True)
# For just token-slice after modelName, partition into assignments and non-assigns.
# We ignore the nonassignments. Need remaining assignments for M= par1=.
[assign, nona] = mapPartAssign(tok[3:])
if len(nona) > 0:
r = nona.pop(0)
tok = tok[0:3]
if cdlTerm != "":
tok += [ cdlTerm ]
if cdlModel != "":
tok += [ cdlModel ]
if w != "":
tok += [ "W=" + w + dscale]
if l != "":
tok += [ "L=" + l + dscale]
# Convert name "short" to zero resistance
if r == "short":
tok += [ "0" ]
tok += assign
return tok
def test_mapRes():
print( mapRes( "", "RPP1", "rnm t1 t2 w=2 L=1 M=joe par1=1".split()))
print( mapRes( "", "RPP1", "rnm t1 t2 444 w=2 L=1 M=joe par1=1".split()))
print( mapRes( "", "RPP1", "rnm t1 t2 R=444 w=2 L=1 M=joe par1=1".split()))
print( mapRes( "", "R2", "rnm t1 t2 L=2 W=10 M=joe par1=1".split()))
print( mapRes( "", "RM2", "rnm t1 t2 area=220p perim=199u perimeter=100u M=joe par1=1".split()))
print( mapRes( "", "RM2", "rnm t1 t2 M=joe par1=1".split()))
print( mapRes( "agnd", "RM3", "rnm t1 t2 $LDD 220p M=joe par1=1".split()))
print( mapRes( "agnd", "RM3", "rnm t1 t2 $LDD 220p L=4 W=12 M=joe par1=1".split()))
# Format a bipolar. cdlTerm is optional. cdlModel is ignored.
# Processes tok and returns a final token list to be output.
# Optional cdlTerm adds an optional 4th terminal.
# If after "qnm t1 t2 t3 model", there are plain numeric (not x=y) they are DISCARDED.
# (Caller already error checked the 1st minimum 5 fields are there; plus cdlModel is null).
def mapBipolar(cdlTerm, cdlModel, tok, options={}):
# strip remaining $* directives
ignore = options['ignore'] if 'ignore' in options else []
[ ign, ign, tok ] = mapDiscard(tok)
for p in ignore:
[ign, tok] = mapLookup(tok, p, True)
# For just token-slice after modelName, partition into assignments and non-assigns.
# We ignore the nonassignments. Need remaining assignments for M= par1=.
[assign, nona] = mapPartAssign(tok[5:])
# Start with "qnm t1 t2 t3". Insert optional 4th term. Then insert modelName.
model = tok[4]
tok = tok[0:4]
if cdlTerm != "":
tok += [ cdlTerm ]
tok += [ model ]
tok += assign
return tok
def test_mapBipolar():
print( mapBipolar( "", "any", "qnm t1 t2 t3 QP1 M=joe par1=1".split()))
print( mapBipolar( "", "", "qnm t1 t2 t3 QP2 M=joe par1=1".split()))
print( mapBipolar( "", "", "qnm t1 t2 t3 QP2 $EA=12 M=joe par1=1".split()))
print( mapBipolar( "", "", "qnm t1 t2 t3 QP3 M=joe EA=14 par1=1".split()))
print( mapBipolar( "agnd", "", "qnm t1 t2 t3 QP4 $LDD 220p M=joe par1=1".split()))
print( mapBipolar( "agnd", "any", "qnm t1 t2 t3 QP4 $LDD 220p L=4 W=12 M=joe par1=1".split()))
#------------------------------------------------------------------------
# Main routine to do the conversion from CDL format to SPICE format
#------------------------------------------------------------------------
def cdl2spice(fnmIn, fnmOut, options):
err = 0
warn = 0
# Open and read input file
try:
with open(fnmIn, 'r') as inFile:
cdltext = inFile.read()
# Unwrap continuation lines
lines = cdltext.replace('\n+', ' ').splitlines()
except:
print('cdl2spi.py: failed to open ' + fnmIn + ' for reading.', file=sys.stderr)
return 1
# Loop over original CDL:
# record existing instanceNames (in subckt-context), for efficient membership
# tests later. Track the subckt-context, instanceNames only need to be unique
# within current subckt.
sub = ""
for i in lines:
if i == "":
continue
tok = i.split()
tlen = len(tok)
if tlen == 0:
continue
t0 = tok[0].lower()
if t0 == '.subckt' and tlen > 1:
sub = tok[1].lower()
continue
if t0 == '.ends':
sub = ""
continue
c0 = tok[0][0].lower()
if c0 in '.*':
continue
# this will ignore primitive-devices (jfet) we don't support.
# TODO: flag them somewhere else as an ERROR.
if not c0 in primch2:
continue
# a primitive-device or subckt-instance we care about and support
# For subckt-instances record the instanceName MINUS lead x.
nm = tok[0]
if c0 == 'x':
nm = nm[1:]
hasInm[ (sub, nm) ] = 1
# loop over original CDL: do conversions.
# Track the subckt-context while we go; instanceNames only need to be unique
# within current subckt.
sub = ""
tmp = []
for i in lines:
tok = i.split()
tlen = len(tok)
# AS-IS: empty line or all (preserved) whitespace
if tlen == 0:
tmp += [ i ]
continue
# get 1st-token original, as lowercase, and 1st-char of 1st-token lowercase.
T0 = tok[0]
t0 = T0.lower()
c0 = t0[0]
# AS-IS: comment
if c0 == '*':
tmp += [i]
continue
# AS-IS: .ends; update subckt-context to outside-of-a-subckt
if t0 == '.ends':
sub = ""
tmp += [i]
continue
# change .param to a comment, output it
if t0 == '.param':
tmp += ["*"+i]
continue
# track .subckt context; process / in .subckt line, and output it.
if t0 == '.subckt':
if tlen < 2:
err+=1
msg = "*cdl2spi.py: ERROR: Missing subckt name:"
tmp += [ msg, i ]
continue
T1 = tok[1]
sub = T1.lower()
tok = mapSubcktDef(tok)
tmp += [ " ".join(tok) ]
continue
# subckt instance line. Process /, map instanceName (exclude x), and output it.
if c0 == 'x':
nm = T0[1:]
if nm == "":
err+=1
msg = "*cdl2spi.py: ERROR: Missing subckt instance name:"
tmp += [ msg, i ]
continue
inm = mapInm(sub, nm)
tok[0] = T0[0] + inm
tok = mapSubcktInst(tok)
tmp += [ " ".join(tok) ]
continue
# all primitives: need instanceName mapped, including 1st char in name.
# all primitives: need M=n copied to an added par1=n
# all primitives: Except for $SUB=... $[...] strip $ from $nm=... parameters.
# all primitives: Isolate $SUB and $[...] for further processing (in
# primitive-specific sections).
cdlTerm=""
cdlModel=""
if c0 in primch:
nm = T0[1:]
if nm == "":
err+=1
msg = "*cdl2spi.py: ERROR: Missing primitive instance name:"
tmp += [ msg, i ]
continue
nm = T0
nm = mapInm(sub, nm)
tok[0] = nm
tok = mapMfactor(tok, options)
tok = mapCDLparam(tok)
[cdlTerm, cdlModel, tok] = mapCDLtermModel(tok)
# diode formats:
# dname t1 t2 model <numericA> <numericP> m=...
# l:dname t1 t2 model {<numericA>} {<numericP>} {m=...} {$SUB=...}
# out format:
# Xdname t1 t2 model area=<numericA> peri=<numericP> m=... par1=...
# We flag $SUB=... : because so far (for XFAB) we CHOOSE not to support three
# terminal diodes.
# CDL-std does not define $[...] as available for diodes, so we silently ignore
# it.
# Always 2 terminals and a modelName.
# We already have peri=... and area=... and have ambiguity with plain numerics.
# TODO: generate a warning in case of ambiguity, but prefer plain numerics
# (with nm= added).
if c0 == "d":
tlen = len(tok)
if tlen < 4:
err+=1
msg = "*cdl2spi.py: ERROR: Diode does not have minimum two terminals and model:"
tmp += [ msg, i ]
continue
if cdlTerm != "":
err+=1
msg = "*cdl2spi.py: ERROR: Diode does not support $SUB=...:"
tmp += [ msg, i ]
continue
tok = mapDiode(cdlTerm, cdlModel, tok, options)
# add X to tok0.
if options['subckt']:
tok[0] = "X" + tok[0]
tmp += [ " ".join(tok) ]
continue
# mosfet formats:
# mname t1 t2 t3 t4 model W=... L=... m=...
# l:mname t1 t2 t3 t4 model {W=... L=...} {m=...} {$NONSWAP} {$LDD[type]}
# l:mname t1 t2 t3 t4 model <width> <length> {m=...} {$NONSWAP} {$LDD[type]}
# output format:
# Xmname t1 t2 t3 t4 model W=... L=... m=... par1=...
# Fixed 4 terminals and a modelName.
# May already have W= L= and ambiguity with plain numerics.
# TODO: generate a warning in case of ambiguity, but prefer plain numerics
# (with nm= added).
if c0 == "m":
tlen = len(tok)
if tlen < 6:
err+=1
msg = "*cdl2spi.py: ERROR: Mosfet does not have minimum four terminals and model:"
tmp += [ msg, i ]
continue
if cdlTerm != "":
err+=1
msg = "*cdl2spi.py: ERROR: Mosfet does not support $SUB=...:"
tmp += [ msg, i ]
continue
tok = mapMos(cdlTerm, cdlModel, tok, options)
# add X to tok0.
if options['subckt']:
tok[0] = "X" + tok[0]
tmp += [ " ".join(tok) ]
continue
# cap formats:
# cname t1 t2 <numeric0> $[model] $SUB=t3 m=...
# cname t1 t2 <numeric0> $[model] m=...
#? cname t1 t2 C=<numeric0> $[model] $SUB=t3 m=...
#? cname t1 t2 <numeric0> $[model] $SUB=t3 area=<numericA> perimeter=<numericP> m=...
#? cname t1 t2 <numeric0> $[model] $SUB=t3 area=<numericA> peri=<numericP> m=...
#l:cname t1 t2 {<numeric0>} {$[model]} {$SUB=t3} {m=...}
# out formats:
# Xcname t1 t2 model area=<numericA> peri=<numericP> m=... par1=...
# Xcname t1 t2 t3 model area=<numericA> peri=<numericP> m=... par1=...
# We require inm, two terminals. Require $[model]. Optional 3rd-term $SUB=...
# If both peri and perimeter, peri overrides.
# Both area/peri are optional. The optional [C=]numeric0 is discarded always.
if c0 == "c":
tlen = len(tok)
if tlen < 3:
err+=1
msg = "*cdl2spi.py: ERROR: Cap does not have minimum two terminals:"
tmp += [ msg, i ]
continue
if cdlModel == "":
err+=1
msg = "*cdl2spi.py: ERROR: Cap missing required $[<model>] directive:"
tmp += [ msg, i ]
continue
tok = mapCap(cdlTerm, cdlModel, tok, options)
# add X to tok0.
if options['subckt']:
tok[0] = "X" + tok[0]
tmp += [ " ".join(tok) ]
continue
# res formats:
# rname n1 n2 <numeric> $SUB=t3 $[model] $w=... $l=... m=...
# c:rname n1 n2 R=<numeric> $[model] w=... l=... m=... $SUB=t3
# l:rname n1 n2 {<numeric>} {$SUB=t3} {$[model]} {$w=...} {$l=...} {m=...}
# (all after n1,n2 optional)
# We require $[model]. And add 3rd term IFF $SUB=.
# out format:
# Xrname n1 n2 t3 model w=... l=... m=... par1=...
if c0 == "r":
tlen = len(tok)
if tlen < 3:
err+=1
msg = "*cdl2spi.py: ERROR: Res does not have minimum two terminals:"
tmp += [ msg, i ]
continue
if cdlModel == "":
err+=1
msg = "*cdl2spi.py: ERROR: Res missing required $[<model>] directive:"
tmp += [ msg, i ]
continue
tok = mapRes(cdlTerm, cdlModel, tok, options)
# add X to tok0.
if options['subckt']:
tok[0] = "X" + tok[0]
tmp += [ " ".join(tok) ]
continue
# bipolar formats:
# qname n1 n2 n3 model <numeric> M=... $EA=...
# qname n1 n2 n3 model $EA=... <numeric> M=...
# qname n1 n2 n3 model {$EA=...} {$W=...} {$L=...} {$SUB=...} {M=...}
# No: l:qname n1 n2 n3 {nsub} model {$EA=...} {$W=...} {$L=...} {$SUB=...} {M=...}
# CDL-std adds {nsub} way to add substrate before model: We don't support it.
# Add 3rd term IFF $SUB=. We propagate optional W/L (or derived from $W/$L).
# EA is emitterSize; not supported by XFAB: deleted.
# We require 3-terminals and model. It is an error to specify $[model].
#
# out format:
# Xqname n1 n2 n3 model M=... par1=...
if c0 == "q":
tlen = len(tok)
if tlen < 5:
err+=1
msg = "*cdl2spi.py: ERROR: Bipolar does not have minimum three terminals and a model:"
tmp += [ msg, i ]
continue
if cdlModel != "":
err+=1
msg = "*cdl2spi.py: ERROR: Bipolar does not support $[<model>] directive:"
tmp += [ msg, i ]
continue
tok = mapBipolar(cdlTerm, cdlModel, tok, options)
# add X to tok0.
if options['subckt']:
tok[0] = "X" + tok[0]
tmp += [ " ".join(tok) ]
continue
# Anything else. What to do, preserve AS-IS with warning, or
# flag them as ERRORs?
tmp += [ "*cdl2spi.py: ERROR: unrecognized line:", i ]
err+=1
# tmp += [ "*cdl2spi.py: WARNING: unrecognized line:", " ".join(tok) ]
# tmp += [ "*cdl2spi.py: WARNING: unrecognized line:", i ]
# warn+=1
# Re-wrap continuation lines at 80 characters
lines = []
for line in tmp:
lines.append('\n+ '.join(textwrap.wrap(line, 80)))
# Write output
if fnmOut == sys.stdout:
for i in lines:
print(i)
else:
try:
with open(fnmOut, 'w') as outFile:
for i in lines:
print(i, file=outFile)
except:
print('cdl2spi.py: failed to open ' + fnmOut + ' for writing.', file=sys.stderr)
return 1
# exit status: indicates if there were errors.
print( "*cdl2spi.py: %d errors, %d warnings" % (err, warn))
return err
if __name__ == '__main__':
options = {}
# Set option defaults
options['debug'] = False
options['subckt'] = False
options['dscale'] = ''
options['addinm'] = []
options['ignore'] = []
arguments = []
for item in sys.argv[1:]:
if item.find('-', 0) == 0:
thisopt = item.split('=')
optname = thisopt[0][1:]
optval = '='.join(thisopt[1:])
if not optname in options:
print('Unknown option -' + optname + '; ignoring.')
else:
lastoptval = options[optname]
if len(thisopt) == 1:
options[optname] = True
elif lastoptval == '':
options[optname] = optval
else:
options[optname].append(optval)
else:
arguments.append(item)
# Supported primitive devices (FET, diode, resistor, capacitor, bipolar)
primch = 'mdrcq'
primch2 = 'mdrcqx'
if len(arguments) > 0:
fnmIn = arguments[0]
if len(arguments) > 1:
fnmOut = arguments[1]
else:
fnmOut = sys.stdout
if options['debug']:
test_mapSubcktInst1()
test_mapSubcktInst2()
test_mapMfactor()
test_CDLparam()
test_CDLtermModel()
test_mapDiscard()
test_mapPartAssign()
test_mapLookup()
test_mapDiode()
test_mapMos()
test_mapCap()
test_mapRes()
test_mapBipolar()
elif len(arguments) > 2 or len(arguments) < 1 :
print('Usage: cdl2spi.py <cdlFileName> [<spiFileName>]')
print(' Options:' )
print(' -debug run debug tests')
print(' -dscale=<suffix> rescale lengths with <suffix>')
print(' -addinm=<param> add multiplier parameter <param>')
print(' -ignore=<param> ignore parameter <param>')
print(' -subckt convert primitive devices to subcircuits')
sys.exit(1)
else:
if options['debug'] == True:
print('Diagnostic: options = ' + str(options))
result = cdl2spice(fnmIn, fnmOut, options)
sys.exit(result)