luke
/
magic
mirror of https://github.com/RTimothyEdwards/magic.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Made a slight modification to the "lef write -hide" routine; 

previously, MASTERSLICE layers would not be added to obstruction
layers made by "-hide".  However, an nwell, for example, that
stuck outside of a prBoundary *would* be recorded, which was
inconsistent.  Resolved this by allowing MASTERSLICE layers
in the OBS block, but only for layers that are not a substrate
type.  NOTE:  It may be better to just insist that a MASTERSLICE
layer define an obstruction type in the "lef" section of the
tech file, and treat it like routing obstructions.  Alternatively,
one may question whether special obstruction types are needed at
all, as one could simply define an obstruction as a type without
a port label.
This commit is contained in:
Tim Edwards 2024-04-08 14:10:46 -04:00
parent 71f4dd2f9f
commit 38d890c407
2 changed files with 17 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
VERSION
View File

@ -1 +1 @@
8.3.470
8.3.471

19
lef/lefWrite.c
View File

@ -29,6 +29,7 @@ static char rcsid[] __attribute__ ((unused)) = "$Header$";
#include "utils/hash.h"
#include "database/database.h"
#include "extract/extract.h"
#include "extract/extractInt.h"
#include "utils/tech.h"
#include "utils/utils.h"
#include "utils/malloc.h"
@ -1135,7 +1136,7 @@ lefWriteMacro(def, f, scale, setback, pinonly, toplayer, domaster)
SearchContext scx;
CellDef *lefFlatDef;
CellUse lefFlatUse, lefSourceUse;
TileTypeBitMask lmask, boundmask, *lrmask, gatetypemask, difftypemask;
TileTypeBitMask lmask, wmask, boundmask, *lrmask, gatetypemask, difftypemask;
TileType ttype;
lefClient lc;
int idx, pNum, pTop, maxport, curport;
@ -1206,6 +1207,7 @@ lefWriteMacro(def, f, scale, setback, pinonly, toplayer, domaster)
TTMaskZero(&lc.rmask);
TTMaskZero(&boundmask);
TTMaskZero(&lmask);
TTMaskZero(&wmask);
pmask = 0;
/* Any layer which has a port label attached to it should by */
@ -1233,6 +1235,17 @@ lefWriteMacro(def, f, scale, setback, pinonly, toplayer, domaster)
}
if ((lefl->lefClass == CLASS_ROUTE) && (lefl->obsType != -1))
TTMaskSetType(&lmask, lefl->type);
else if (lefl->lefClass == CLASS_MASTER)
{
/* This is something of a hack. . . Record MASTERSLICE layers
* that are not substrate (e.g., "nwell" but not "pwell"). These
* will be used to paint obstructions on the plane of the
* masterslice layer. There may be better solutions to this.
*/
if (ExtCurStyle != NULL)
if (!TTMaskHasType(&ExtCurStyle->exts_globSubstrateTypes, lefl->type))
TTMaskSetType(&wmask, lefl->type);
}
}
if (lefl->obsType != -1)
TTMaskSetType(&lc.rmask, lefl->obsType);
@ -1772,7 +1785,7 @@ lefWriteMacro(def, f, scale, setback, pinonly, toplayer, domaster)
lc.lastType = TT_SPACE;
lc.needHeader = FALSE;
/* Restrict to routing planes only */
/* Restrict to routing and masterslice planes only */
if (setback >= 0)
{
@ -1815,7 +1828,7 @@ lefWriteMacro(def, f, scale, setback, pinonly, toplayer, domaster)
manualBound = GeoNullRect;
for (ttype = TT_TECHDEPBASE; ttype < DBNumTypes; ttype++)
if (TTMaskHasType(&lmask, ttype))
if (TTMaskHasType(&lmask, ttype) || TTMaskHasType(&wmask, ttype))
{
Rect r;
layerBound.r_xbot = layerBound.r_xtop = 0;