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Implemented a command option "ext2spice short voltage|resistor|none" that

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implements a method for handling ports in a subcircuit that have different
port names and indexes but are shorted together.  "none" is the default
and backwards-compatible behavior that merges ports together, which will
often cause one of the ports to be optimized out of the netlist.  "resistor"
will separate the port names with a 0-ohm ideal resistor.  "voltage" will
separate the port names with a 0-volt voltage source.  This should work
well for simulation and potentially for LVS, although its impact on LVS
has not been fully investigated.
This commit is contained in:
Tim Edwards
2021-07-10 21:13:24 -04:00
parent 355399d3ef
commit 6136d3ff0f
11 changed files with 222 additions and 77 deletions
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extract/ExtBasic.c
+2 -2
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@@ -55,8 +55,8 @@ static char sccsid[] = "@(#)ExtBasic.c 4.13 MAGIC (Berkeley) 12/5/85";
#ifdef MAGIC_WRAPPER
char *extDevTable[] = {"fet", "mosfet", "asymmetric", "bjt", "devres",
"devcap", "devcaprev", "diode", "pdiode", "ndiode", "subckt",
"rsubckt", "msubckt", "csubckt", NULL};
"devcap", "devcaprev", "vsource", "diode", "pdiode", "ndiode",
"subckt", "rsubckt", "msubckt", "csubckt", NULL};
#endif
/* --------------------- Data local to this file ---------------------- */