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Recognizing async reset in blasting (the case of constant 0 driver).

This commit is contained in:
Alan Mishchenko 2019-04-02 17:43:57 -10:00
parent 2feb5da23c
commit c24fd01f19
1 changed files with 18 additions and 2 deletions
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20
src/base/wlc/wlcReadVer.c
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@ -1059,7 +1059,7 @@ startword:
p->pNtk->pInits = Wlc_PrsConvertInitValues( p->pNtk );
//printf( "%s\n", p->pNtk->pInits );
}
if ( p->pNtk->vArsts )
if ( p->pNtk->vArsts && !p->pNtk->fAsyncRst )
{
int i, NameIdArst;
Vec_IntForEachEntry( p->pNtk->vArsts, NameIdArst, i )
@ -1280,7 +1280,23 @@ startword:
pStart = Wlc_PrsFindSymbol( pStart, '(' );
if ( pStart == NULL )
return Wlc_PrsWriteErrorMessage( p, pStart, "Cannot read opening parenthesis in the flop description." );
pStart = Wlc_PrsFindName( pStart+1, &pName );
pStart = Wlc_PrsSkipSpaces( pStart+1 );
if ( Wlc_PrsIsDigit(pStart) )
{
int Range, Signed, XValue;
Vec_Int_t * vFanins = Vec_IntAlloc( 100 );
pStart = Wlc_PrsReadConstant( p, pStart, vFanins, &Range, &Signed, &XValue );
if ( pStart && Vec_IntSize(vFanins) == 1 && Vec_IntEntry(vFanins, 0) == 0 )
{
Vec_IntFree( vFanins );
continue;
}
printf( "Detected async reset.\n" );
p->pNtk->fAsyncRst = 1;
Vec_IntFree( vFanins );
continue;
}
pStart = Wlc_PrsFindName( pStart, &pName );
if ( pStart == NULL )
return Wlc_PrsWriteErrorMessage( p, pStart, "Cannot read name inside flop description." );
NameIdArst = Abc_NamStrFindOrAdd( p->pNtk->pManName, pName, &fFound );