| #!/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) |
| |
