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Added a "-pinonly" option to "lef write" to restrict the pin area 

to what is defined by the label, and no additional surrounding
geometry.
This commit is contained in:
Tim Edwards 2021-04-20 10:19:12 -04:00
parent 521baa91d9
commit 5b00ee7b83
3 changed files with 43 additions and 14 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
VERSION
View File

@ -1 +1 @@
8.3.154
8.3.155

19
lef/lefCmd.c
View File

@ -92,6 +92,9 @@ CmdLef(w, cmd)
* other than pin area surrounding labels,
* with the indicated setback distance.
*/
bool lefPinOnly = FALSE; /* If TRUE, make pins only where labels
* are defined, not the whole net.
*/
bool lefTopLayer = FALSE; /* If TRUE, only output the topmost
* layer used by a pin, and make
* all layers below it obstructions.
@ -234,6 +237,8 @@ CmdLef(w, cmd)
i++;
}
}
else if (!strncmp(cmd->tx_argv[i], "-pinonly", 8))
lefPinOnly = TRUE;
else if (!strncmp(cmd->tx_argv[i], "-toplayer", 9))
lefTopLayer = TRUE;
else if (!strncmp(cmd->tx_argv[i], "-nomaster", 9))
@ -244,8 +249,8 @@ CmdLef(w, cmd)
}
else goto wrongNumArgs;
}
LefWriteAll(selectedUse, lefTopCell, lefTech, lefHide, lefTopLayer,
lefDoMaster, recurse);
LefWriteAll(selectedUse, lefTopCell, lefTech, lefHide, lefPinOnly,
lefTopLayer, lefDoMaster, recurse);
}
break;
case LEF_WRITE:
@ -286,6 +291,13 @@ CmdLef(w, cmd)
else
TxPrintf("The \"-hide\" option is only for lef write\n");
}
else if (!strncmp(cmd->tx_argv[i], "-pinonly", 8))
{
if (is_lef)
lefPinOnly = TRUE;
else
TxPrintf("The \"-pinonly\" option is only for lef write\n");
}
else if (!strncmp(cmd->tx_argv[i], "-toplayer", 9))
{
if (is_lef)
@ -339,7 +351,8 @@ CmdLef(w, cmd)
DefWriteCell(selectedUse->cu_def, namep, allSpecial, units);
else
LefWriteCell(selectedUse->cu_def, namep, selectedUse->cu_def
== EditRootDef, lefTech, lefHide, lefTopLayer, lefDoMaster);
== EditRootDef, lefTech, lefHide, lefPinOnly,
lefTopLayer, lefDoMaster);
break;
case LEF_HELP:
wrongNumArgs:

36
lef/lefWrite.c
View File

@ -1095,11 +1095,12 @@ LefWritePinHeader(f, lab)
*/
void
lefWriteMacro(def, f, scale, setback, toplayer, domaster)
lefWriteMacro(def, f, scale, setback, pinonly, toplayer, domaster)
CellDef *def; /* Def for which to generate LEF output */
FILE *f; /* Output to this file */
float scale; /* Output distance units conversion factor */
int setback; /* If >= 0, hide all detail except pins inside setback */
bool pinonly; /* If TRUE, only place pins where labels are defined */
bool toplayer; /* If TRUE, only output topmost layer of pins */
bool domaster; /* If TRUE, write masterslice layers */
{
@ -1416,13 +1417,18 @@ lefWriteMacro(def, f, scale, setback, toplayer, domaster)
scx.scx_area = labr;
SelectClear();
if (setback == 0)
if ((pinonly == TRUE) || (setback == 0))
{
Rect carea;
labelLinkedList *newlll;
SelectChunk(&scx, lab->lab_type, 0, &carea, FALSE);
if (GEO_RECTNULL(&carea)) carea = labr;
if (pinonly == TRUE)
carea = labr;
else
{
SelectChunk(&scx, lab->lab_type, 0, &carea, FALSE);
if (GEO_RECTNULL(&carea)) carea = labr;
}
/* Note that a sticky label could be placed over multiple */
/* tile types, which would cause SelectChunk to fail. So */
@ -1445,12 +1451,18 @@ lefWriteMacro(def, f, scale, setback, toplayer, domaster)
Rect carea;
/* For -hide with setback, select the entire net and then */
/* remove the part inside the setback area. Note that this */
/* does not check if this causes the label to disappear. */
/* remove the part inside the setback area. */
SelectNet(&scx, lab->lab_type, 0, NULL, FALSE);
GEO_EXPAND(&boundary, -setback, &carea);
SelRemoveArea(&carea, &DBAllButSpaceAndDRCBits);
/* Paint over the label area so that labels do not simply */
/* disappear by being inside the setback area. */
pNum = DBPlane(lab->lab_type);
DBPaintPlane(SelectDef->cd_planes[pNum], &labr,
DBStdPaintTbl(lab->lab_type, pNum), (PaintUndoInfo *) NULL);
}
else
SelectNet(&scx, lab->lab_type, 0, NULL, FALSE);
@ -1964,11 +1976,13 @@ lefGetProperties(stackItem, i, clientData)
*/
void
LefWriteAll(rootUse, writeTopCell, lefTech, lefHide, lefTopLayer, lefDoMaster, recurse)
LefWriteAll(rootUse, writeTopCell, lefTech, lefHide, lefPinOnly, lefTopLayer,
lefDoMaster, recurse)
CellUse *rootUse;
bool writeTopCell;
bool lefTech;
int lefHide;
bool lefPinOnly;
bool lefTopLayer;
bool lefDoMaster;
bool recurse;
@ -2040,7 +2054,7 @@ LefWriteAll(rootUse, writeTopCell, lefTech, lefHide, lefTopLayer, lefDoMaster, r
{
def->cd_client = (ClientData) 0;
if (!SigInterruptPending)
lefWriteMacro(def, f, scale, lefHide, lefTopLayer, lefDoMaster);
lefWriteMacro(def, f, scale, lefHide, lefPinOnly, lefTopLayer, lefDoMaster);
}
/* End the LEF file */
@ -2104,12 +2118,14 @@ lefDefPushFunc(use, recurse)
*/
void
LefWriteCell(def, outName, isRoot, lefTech, lefHide, lefTopLayer, lefDoMaster)
LefWriteCell(def, outName, isRoot, lefTech, lefHide, lefPinOnly, lefTopLayer,
lefDoMaster)
CellDef *def; /* Cell being written */
char *outName; /* Name of output file, or NULL. */
bool isRoot; /* Is this the root cell? */
bool lefTech; /* Output layer information if TRUE */
int lefHide; /* Hide detail other than pins if >= 0 */
bool lefPinOnly; /* Only generate pins on label areas */
bool lefTopLayer; /* Use only topmost layer of pin if TRUE */
bool lefDoMaster; /* Write masterslice layers if TRUE */
{
@ -2145,7 +2161,7 @@ LefWriteCell(def, outName, isRoot, lefTech, lefHide, lefTopLayer, lefDoMaster)
HashKill(&propHashTbl);
HashKill(&siteHashTbl);
}
lefWriteMacro(def, f, scale, lefHide, lefTopLayer, lefDoMaster);
lefWriteMacro(def, f, scale, lefHide, lefPinOnly, lefTopLayer, lefDoMaster);
/* End the LEF file */
fprintf(f, "END LIBRARY\n\n");