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Added switch -y to control blasting divide-by-zero condition.

This commit is contained in:
Alan Mishchenko 2020-11-29 13:46:21 -10:00
parent fa87d16b97
commit 6eee09c51c
3 changed files with 9 additions and 3 deletions
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2
src/base/wlc/wlc.h
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@ -217,6 +217,7 @@ struct Wlc_BstPar_t_
int fBooth; int fBooth;
int fNonRest; int fNonRest;
int fCla; int fCla;
int fDivBy0;
int fNoCleanup; int fNoCleanup;
int fCreateMiter; int fCreateMiter;
int fCreateWordMiter; int fCreateWordMiter;
@ -238,6 +239,7 @@ static inline void Wlc_BstParDefault( Wlc_BstPar_t * pPar )
pPar->fMulti = 0; pPar->fMulti = 0;
pPar->fBooth = 0; pPar->fBooth = 0;
pPar->fCla = 0; pPar->fCla = 0;
pPar->fDivBy0 = 0;
pPar->fCreateMiter = 0; pPar->fCreateMiter = 0;
pPar->fCreateWordMiter = 0; pPar->fCreateWordMiter = 0;
pPar->fDecMuxes = 0; pPar->fDecMuxes = 0;

2
src/base/wlc/wlcBlast.c
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@ -1815,7 +1815,7 @@ Gia_Man_t * Wlc_NtkBitBlast( Wlc_Ntk_t * p, Wlc_BstPar_t * pParIn )
else else
Wlc_BlastDivider( pNew, pArg0, nRangeMax, pArg1, nRangeMax, pObj->Type == WLC_OBJ_ARI_DIVIDE, vRes ); Wlc_BlastDivider( pNew, pArg0, nRangeMax, pArg1, nRangeMax, pObj->Type == WLC_OBJ_ARI_DIVIDE, vRes );
Vec_IntShrink( vRes, nRange ); Vec_IntShrink( vRes, nRange );
//if ( pObj->Type == WLC_OBJ_ARI_DIVIDE ) if ( !pPar->fDivBy0 )
Wlc_BlastZeroCondition( pNew, pFans1, nRange1, vRes ); Wlc_BlastZeroCondition( pNew, pFans1, nRange1, vRes );
} }
else if ( pObj->Type == WLC_OBJ_ARI_MINUS ) else if ( pObj->Type == WLC_OBJ_ARI_MINUS )

8
src/base/wlc/wlcCom.c
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@ -1037,7 +1037,7 @@ int Abc_CommandBlast( Abc_Frame_t * pAbc, int argc, char ** argv )
Wlc_BstParDefault( pPar ); Wlc_BstParDefault( pPar );
pPar->nOutputRange = 2; pPar->nOutputRange = 2;
Extra_UtilGetoptReset(); Extra_UtilGetoptReset();
while ( ( c = Extra_UtilGetopt( argc, argv, "ORAMcombqadestnizvh" ) ) != EOF ) while ( ( c = Extra_UtilGetopt( argc, argv, "ORAMcombqaydestnizvh" ) ) != EOF )
{ {
switch ( c ) switch ( c )
{ {
@ -1103,6 +1103,9 @@ int Abc_CommandBlast( Abc_Frame_t * pAbc, int argc, char ** argv )
case 'a': case 'a':
pPar->fCla ^= 1; pPar->fCla ^= 1;
break; break;
case 'y':
pPar->fDivBy0 ^= 1;
break;
case 'd': case 'd':
pPar->fCreateMiter ^= 1; pPar->fCreateMiter ^= 1;
break; break;
@ -1198,7 +1201,7 @@ int Abc_CommandBlast( Abc_Frame_t * pAbc, int argc, char ** argv )
Abc_FrameUpdateGia( pAbc, pNew ); Abc_FrameUpdateGia( pAbc, pNew );
return 0; return 0;
usage: usage:
Abc_Print( -2, "usage: %%blast [-ORAM num] [-combqadestnizvh]\n" ); Abc_Print( -2, "usage: %%blast [-ORAM num] [-combqaydestnizvh]\n" );
Abc_Print( -2, "\t performs bit-blasting of the word-level design\n" ); Abc_Print( -2, "\t performs bit-blasting of the word-level design\n" );
Abc_Print( -2, "\t-O num : zero-based index of the first word-level PO to bit-blast [default = %d]\n", pPar->iOutput ); Abc_Print( -2, "\t-O num : zero-based index of the first word-level PO to bit-blast [default = %d]\n", pPar->iOutput );
Abc_Print( -2, "\t-R num : the total number of word-level POs to bit-blast [default = %d]\n", pPar->nOutputRange ); Abc_Print( -2, "\t-R num : the total number of word-level POs to bit-blast [default = %d]\n", pPar->nOutputRange );
@ -1210,6 +1213,7 @@ usage:
Abc_Print( -2, "\t-b : toggle generating radix-4 Booth multipliers [default = %s]\n", pPar->fBooth? "yes": "no" ); Abc_Print( -2, "\t-b : toggle generating radix-4 Booth multipliers [default = %s]\n", pPar->fBooth? "yes": "no" );
Abc_Print( -2, "\t-q : toggle generating non-restoring square root [default = %s]\n", pPar->fNonRest? "yes": "no" ); Abc_Print( -2, "\t-q : toggle generating non-restoring square root [default = %s]\n", pPar->fNonRest? "yes": "no" );
Abc_Print( -2, "\t-a : toggle generating carry-look-ahead adder [default = %s]\n", pPar->fCla? "yes": "no" ); Abc_Print( -2, "\t-a : toggle generating carry-look-ahead adder [default = %s]\n", pPar->fCla? "yes": "no" );
Abc_Print( -2, "\t-y : toggle creating different divide-by-0 condition [default = %s]\n", pPar->fDivBy0? "yes": "no" );
Abc_Print( -2, "\t-d : toggle creating dual-output multi-output miter [default = %s]\n", pPar->fCreateMiter? "yes": "no" ); Abc_Print( -2, "\t-d : toggle creating dual-output multi-output miter [default = %s]\n", pPar->fCreateMiter? "yes": "no" );
Abc_Print( -2, "\t-e : toggle creating miter with output word bits combined [default = %s]\n", pPar->fCreateWordMiter? "yes": "no" ); Abc_Print( -2, "\t-e : toggle creating miter with output word bits combined [default = %s]\n", pPar->fCreateWordMiter? "yes": "no" );
Abc_Print( -2, "\t-s : toggle creating decoded MUXes [default = %s]\n", pPar->fDecMuxes? "yes": "no" ); Abc_Print( -2, "\t-s : toggle creating decoded MUXes [default = %s]\n", pPar->fDecMuxes? "yes": "no" );