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Updating truth table computation for GIA to work for internal nodes as well.

This commit is contained in:
Alan Mishchenko 2012-07-08 14:04:52 -07:00
parent ff0ec52d4d
commit 21b847a8db
2 changed files with 20 additions and 16 deletions
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2
src/aig/gia/gia.h
View File

@ -945,7 +945,7 @@ extern Vec_Int_t * Gia_VtaConvertToGla( Gia_Man_t * p, Vec_Int_t * vVta
extern Vec_Int_t * Gia_VtaConvertFromGla( Gia_Man_t * p, Vec_Int_t * vGla, int nFrames );
extern Vec_Int_t * Gia_FlaConvertToGla( Gia_Man_t * p, Vec_Int_t * vFla );
extern Vec_Int_t * Gia_GlaConvertToFla( Gia_Man_t * p, Vec_Int_t * vGla );
extern unsigned * Gia_ManComputePoTt( Gia_Man_t * p, Gia_Obj_t * pObj );
extern unsigned * Gia_ObjComputeTruthTable( Gia_Man_t * p, Gia_Obj_t * pObj );
/*=== giaCTas.c ===========================================================*/
typedef struct Tas_Man_t_ Tas_Man_t;

34
src/aig/gia/giaUtil.c
View File

@ -1510,15 +1510,15 @@ unsigned * Gia_ManComputePoTruthTables( Gia_Man_t * p, int nBytesMax )
SeeAlso []
***********************************************************************/
int Gia_ManComputePoTt_rec( Gia_Man_t * p, Gia_Obj_t * pObj )
int Gia_ObjComputeTruthTable_rec( Gia_Man_t * p, Gia_Obj_t * pObj )
{
word * pTruth0, * pTruth1, * pTruth, * pTruthL;
if ( Gia_ObjIsTravIdCurrent(p, pObj) )
return pObj->Value;
Gia_ObjSetTravIdCurrent(p, pObj);
assert( Gia_ObjIsAnd(pObj) );
pTruth0 = Vec_WrdArray(p->vTtMemory) + p->nTtWords * Gia_ManComputePoTt_rec( p, Gia_ObjFanin0(pObj) );
pTruth1 = Vec_WrdArray(p->vTtMemory) + p->nTtWords * Gia_ManComputePoTt_rec( p, Gia_ObjFanin1(pObj) );
pTruth0 = Vec_WrdArray(p->vTtMemory) + p->nTtWords * Gia_ObjComputeTruthTable_rec( p, Gia_ObjFanin0(pObj) );
pTruth1 = Vec_WrdArray(p->vTtMemory) + p->nTtWords * Gia_ObjComputeTruthTable_rec( p, Gia_ObjFanin1(pObj) );
assert( p->nTtWords * p->iTtNum < Vec_WrdSize(p->vTtMemory) );
pTruth = Vec_WrdArray(p->vTtMemory) + p->nTtWords * p->iTtNum++;
pTruthL = Vec_WrdArray(p->vTtMemory) + p->nTtWords * p->iTtNum;
@ -1542,13 +1542,12 @@ int Gia_ManComputePoTt_rec( Gia_Man_t * p, Gia_Obj_t * pObj )
}
return p->iTtNum-1;
}
unsigned * Gia_ManComputePoTt( Gia_Man_t * p, Gia_Obj_t * pObj )
unsigned * Gia_ObjComputeTruthTable( Gia_Man_t * p, Gia_Obj_t * pObj )
{
Gia_Obj_t * pTemp;
word * pTruth;
int i, k;
// this procedure works only for primary outputs
assert( Gia_ObjIsCo(pObj) );
if ( p->vTtMemory == NULL )
{
word Truth6[7] = {
@ -1584,16 +1583,21 @@ unsigned * Gia_ManComputePoTt( Gia_Man_t * p, Gia_Obj_t * pObj )
}
p->iTtNum = 7;
// compute truth table for the fanin node
pTruth = Vec_WrdArray(p->vTtMemory) + p->nTtWords * Gia_ManComputePoTt_rec(p, Gia_ObjFanin0(pObj));
// complement if needed
if ( Gia_ObjFaninC0(pObj) )
if ( Gia_ObjIsCo(pObj) )
{
word * pTemp = pTruth;
assert( p->nTtWords * p->iTtNum < Vec_WrdSize(p->vTtMemory) );
pTruth = Vec_WrdArray(p->vTtMemory) + p->nTtWords * p->iTtNum;
for ( k = 0; k < p->nTtWords; k++ )
pTruth[k] = ~pTemp[k];
pTruth = Vec_WrdArray(p->vTtMemory) + p->nTtWords * Gia_ObjComputeTruthTable_rec(p, Gia_ObjFanin0(pObj));
// complement if needed
if ( Gia_ObjFaninC0(pObj) )
{
word * pTemp = pTruth;
assert( p->nTtWords * p->iTtNum < Vec_WrdSize(p->vTtMemory) );
pTruth = Vec_WrdArray(p->vTtMemory) + p->nTtWords * p->iTtNum;
for ( k = 0; k < p->nTtWords; k++ )
pTruth[k] = ~pTemp[k];
}
}
else
pTruth = Vec_WrdArray(p->vTtMemory) + p->nTtWords * Gia_ObjComputeTruthTable_rec(p, pObj);
return (unsigned *)pTruth;
}
@ -1608,7 +1612,7 @@ unsigned * Gia_ManComputePoTt( Gia_Man_t * p, Gia_Obj_t * pObj )
SeeAlso []
***********************************************************************/
void Gia_ManComputePoTtTest( Gia_Man_t * p )
void Gia_ObjComputeTruthTableTest( Gia_Man_t * p )
{
Gia_Obj_t * pObj;
unsigned * pTruth;
@ -1616,7 +1620,7 @@ void Gia_ManComputePoTtTest( Gia_Man_t * p )
int i;
Gia_ManForEachPo( p, pObj, i )
{
pTruth = Gia_ManComputePoTt( p, pObj );
pTruth = Gia_ObjComputeTruthTable( p, pObj );
// Extra_PrintHex( stdout, pTruth, Gia_ManPiNum(p) ); printf( "\n" );
}
Abc_PrintTime( 1, "Time", clock() - clk );