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Extended the use of attribute labels to allow gate attributes to 

specify additional parameters for a device.  Any gate attribute
(label ending with "^") that has an "=" in it is considered a
parameter, and is output with the device in the .ext file.  This
gives a way to add specific parameters to a device, which otherwise
have no meaning to the layout editor.  Note that prior to this
extension, the gate attribute was used only to set the device
index.  If a gate attribute is made for a device index, it cannot
have "=" in the name, so it remains backwardly compatible.  Only
non-parameter attributes are passed on to ext2spice.
This commit is contained in:
R. Timothy Edwards 2026-03-18 16:41:42 -04:00
parent 2d5c4be6dd
commit 37db9e453b
1 changed files with 30 additions and 0 deletions
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30
extract/ExtBasic.c
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@ -1835,6 +1835,8 @@ extOutputDevParams(reg, devptr, outFile, length, width, areavec, perimvec)
ParamList *chkParam;
HashEntry *he;
ResValue resvalue;
LabRegion *node; /* Node connected to gate terminal */
LabelList *ll; /* Gate's label list */
for (chkParam = devptr->exts_deviceParams; chkParam
!= NULL; chkParam = chkParam->pl_next)
@ -1966,6 +1968,34 @@ extOutputDevParams(reg, devptr, outFile, length, width, areavec, perimvec)
break;
}
}
/* If there are device attribute labels (labels attached to the device
* type ending with "^") with "=" in them, then treat them as extra
* parameters. Output each one and remove the gate attribute property
* from the label.
*/
node = (LabRegion *)ExtGetRegion(reg->treg_tile, reg->treg_dinfo);
for (ll = node->lreg_labels; ll; ll = ll->ll_next)
{
if (ll->ll_attr == LL_GATEATTR)
{
char cs, *ct, *cp = ll->ll_label->lab_text;
if (strchr(cp, '=') != NULL)
{
/* Since this is an attribute label, it has a special character
* at the end, which needs to be stripped off while printing
* and then put back again.
*/
ct = ll->ll_label->lab_text + strlen(ll->ll_label->lab_text) - 1;
cs = *ct;
*ct = '\0';
fprintf(outFile, " %s", ll->ll_label->lab_text);
ll->ll_attr = LL_NOATTR;
*ct = cs;
}
}
}
}
/* Structures used by extTermAPFunc() for storing area and perimeter data */