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Altered the way that cells in unknown GDS libraries get prefixed, 

to make it more compatible with SPICE by keeping it case-sensitive
and avoiding a number for the first character.
This commit is contained in:
Tim Edwards 2021-02-19 08:52:56 -05:00
parent 2d79e0e0ce
commit 3af205cd66
2 changed files with 15 additions and 10 deletions
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2
VERSION
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@ -1 +1 @@
8.3.129
8.3.130

23
calma/CalmaWrite.c
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@ -613,7 +613,7 @@ calmaFullDump(def, fi, outf, filename)
FILE *outf;
char *filename;
{
int version, rval, i;
int version, rval;
char *libname = NULL, uniqlibname[4];
char *sptr, *viewopts;
bool isAbstract;
@ -657,24 +657,29 @@ calmaFullDump(def, fi, outf, filename)
viewopts = (char *)DBPropGet(def, "LEFview", &isAbstract);
if ((!isAbstract) || (strcasecmp(viewopts, "no_prefix")))
{
/* Generate a SHORT name for this cell (else it is easy to run into the
* GDS 32-character cellname limit). Save it in the hash record. The
* chance of generating the same prefix for a library that has items
* with conflicting names is vanishingly small, but to be pedantic, store
* the prefix in a hash table and check to make sure that uniqueness is
* ensured.
* ensured. NOTE: The first character of a SPICE name cannot be a
* number. Therefore the first character is alphabetical, and the second
* is alphanumeric. There are only 936 possible combinations, but this
* is only meant to distinguish cells in large IP blocks of unknown
* origin, of which only a limited number would be expected. Beware
* the implications for LVS, as the prefixed names from layout would
* need to be compared to un-prefixed names from another netlist.
*/
while (TRUE)
{
HashEntry *he2;
for (i = 0; i < 2; i++) {
rval = random() % 62;
rval = (rval < 26) ? ('A' + rval) : ((rval < 52) ? ('a' + rval - 26) :
('0' + rval - 52));
uniqlibname[i] = (char)(rval & 127);
}
rval = random() % 26;
rval = 'A' + rval;
uniqlibname[0] = (char)(rval & 127);
rval = random() % 36;
rval = (rval < 26) ? ('A' + rval) : ('0' + rval - 26);
uniqlibname[1] = (char)(rval & 127);
uniqlibname[2] = '_';
uniqlibname[3] = '\0';
he2 = HashLookOnly(&calmaPrefixHash, uniqlibname);