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New analogue and digital device models from TI contain 

the token GND in their subcircuit. Up to now ngspice has
declared GND as global and replaced it by 0.

Now, if PS is selected as compat mode, GND is not
declared as global, and is not replaced inside of a subcircuit.
This commit is contained in:
Holger Vogt 2026-01-23 19:50:26 +01:00
parent ab03cc94c0
commit afb17cb6c7
1 changed files with 15 additions and 5 deletions
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20
src/frontend/inpcom.c
View File

@ -1860,11 +1860,13 @@ static struct inp_read_t inp_read(FILE* fp, int call_depth, const char* dir_name
comfile = TRUE;
if (call_depth == 0 && !comfile) {
if (!cp_getvar("no_auto_gnd", CP_BOOL, NULL, 0))
if (!cp_getvar("no_auto_gnd", CP_BOOL, NULL, 0) && !newcompat.ps)
insert_new_line(cc, copy(".global gnd"), 1, 0, "internal");
else
else {
insert_new_line(
cc, copy("* gnd is not set to 0 automatically "), 1, 0, "internal");
cc, copy("* gnd is not set to 0 automatically "), 1, 0, "internal");
fprintf(stdout, "Note: gnd in a subcircuit is not set to 0 automatically\n");
}
if (!newcompat.lt && !newcompat.ps && !newcompat.s3) {
/* process all library section references */
@ -2295,12 +2297,20 @@ static char *readline(FILE *fd)
static void inp_fix_gnd_name(struct card *c)
{
bool found_subckt = FALSE;
for (; c; c = c->nextcard) {
char *gnd = c->line;
// if inside of a subcircuit, and compatmode is ps, don't replace gnd
if (newcompat.ps) {
if (ciprefix(".subckt", c->line))
found_subckt = TRUE;
if (ciprefix(".ends", c->line))
found_subckt = FALSE;
}
// if there is a comment or no gnd, go to next line
if ((*gnd == '*') || !strstr(gnd, "gnd"))
if (found_subckt || (*gnd == '*') || !strstr(gnd, "gnd"))
continue;
// replace "?gnd?" by "? 0 ?", ? being a ' ' ',' '(' ')'.