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Made a correction to the last commit, which is that when searching

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a shielded substrate area for devices with terminals connecting to
substrate, search the entire cell hierarchy down to the bottom in
that area, not just the immediate child cell.  Also:  Reduced the
number of types being searched to ignore types in non-substrate
areas like nwell, although it should not make a practical difference
because those areas should not be searched.
This commit is contained in:
R. Timothy Edwards
2026-06-22 20:03:30 -04:00
parent 381714e2d5
commit f4b210a9c0
5 changed files with 76 additions and 50 deletions
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extract/ExtSubtree.c
+13 -6
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@@ -181,7 +181,7 @@ extSubtree(parentUse, reg, f)
/* Use the display timer to force a 5-second progress check */
savedDisplayStatus = GrDisplayStatus;
GrDisplayStatus = DISPLAY_IN_PROGRESS;
SigSetTimer(5); /* Print at 5-second intervals */
SigSetTimer(5); /* Print at 5-second intervals */
if ((ExtOptions & (EXT_DOCOUPLING|EXT_DOADJUST))
!= (EXT_DOCOUPLING|EXT_DOADJUST))
@@ -777,6 +777,7 @@ extSubtreeFunc(scx, ha)
SearchContext newscx;
ExtTree *oneFlat;
HierYank hy;
bool subok;
int x, y;
/* Allocate a new ExtTree to hold the flattened, extracted subtree */
@@ -921,25 +922,31 @@ extSubtreeFunc(scx, ha)
/* connected. */
if (use->cu_xhi == use->cu_xlo && use->cu_yhi == use->cu_ylo)
extHierSubstrate(ha, use, -1, -1);
subok = (!extHierSubstrate(ha, use, -1, -1)) ? TRUE : FALSE;
else if (use->cu_xhi == use->cu_xlo && use->cu_yhi > use->cu_ylo)
{
subok = FALSE;
for (y = use->cu_ylo; y <= use->cu_yhi; y++)
extHierSubstrate(ha, use, -1, y);
if (!extHierSubstrate(ha, use, -1, y))
subok = TRUE;
}
else if (use->cu_xhi > use->cu_xlo && use->cu_yhi == use->cu_ylo)
{
subok = FALSE;
for (x = use->cu_xlo; x <= use->cu_xhi; x++)
extHierSubstrate(ha, use, x, -1);
if (!extHierSubstrate(ha, use, x, -1))
subok = TRUE;
}
else
{
subok = FALSE;
for (x = use->cu_xlo; x <= use->cu_xhi; x++)
for (y = use->cu_ylo; y <= use->cu_yhi; y++)
extHierSubstrate(ha, use, x, y);
if (!extHierSubstrate(ha, use, x, y))
subok = TRUE;
}
/* Mark substrate as having been extracted for this use. */
use->cu_flags |= CU_SUB_EXTRACTED;
if (subok) use->cu_flags |= CU_SUB_EXTRACTED;
/* Free the cumulative node list we extracted above */
if (ha->ha_cumFlat.et_nodes)