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Commit 68d360c2 by Alan Mishchenko
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Move truth table code into a separte file.

parent f5a8cf99
Showing with 335 additions and 303 deletions
abclib.dsp
...@@ -2709,6 +2709,10 @@ SOURCE=.\src\misc\util\utilSignal.h ...@@ -2709,6 +2709,10 @@ SOURCE=.\src\misc\util\utilSignal.h
SOURCE=.\src\misc\util\utilSort.c SOURCE=.\src\misc\util\utilSort.c
# End Source File # End Source File
# Begin Source File
SOURCE=.\src\misc\util\utilTruth.h
# End Source File
# End Group # End Group
# Begin Group "nm" # Begin Group "nm"
......
src/base/abci/abcRec3.c
...@@ -24,6 +24,7 @@ ...@@ -24,6 +24,7 @@
#include "aig/gia/giaAig.h" #include "aig/gia/giaAig.h"
#include "misc/vec/vecMem.h" #include "misc/vec/vecMem.h"
#include "bool/lucky/lucky.h" #include "bool/lucky/lucky.h"
#include "misc/util/utilTruth.h"
ABC_NAMESPACE_IMPL_START ABC_NAMESPACE_IMPL_START
...@@ -407,48 +408,6 @@ void Lms_GiaProfilesPrint( Gia_Man_t * p ) ...@@ -407,48 +408,6 @@ void Lms_GiaProfilesPrint( Gia_Man_t * p )
/**Function************************************************************* /**Function*************************************************************
Synopsis [Stretch truthtable to have more input variables.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
static void Abc_TtStretch5( unsigned * pInOut, int nVarS, int nVarB )
{
int w, i, step, nWords;
if ( nVarS == nVarB )
return;
assert( nVarS < nVarB );
step = Abc_TruthWordNum(nVarS);
nWords = Abc_TruthWordNum(nVarB);
if ( step == nWords )
return;
assert( step < nWords );
for ( w = 0; w < nWords; w += step )
for ( i = 0; i < step; i++ )
pInOut[w + i] = pInOut[i];
}
static void Abc_TtStretch6( word * pInOut, int nVarS, int nVarB )
{
int w, i, step, nWords;
if ( nVarS == nVarB )
return;
assert( nVarS < nVarB );
step = Abc_Truth6WordNum(nVarS);
nWords = Abc_Truth6WordNum(nVarB);
if ( step == nWords )
return;
assert( step < nWords );
for ( w = 0; w < nWords; w += step )
for ( i = 0; i < step; i++ )
pInOut[w + i] = pInOut[i];
}
/**Function*************************************************************
Synopsis [Compute support sizes for each CO.] Synopsis [Compute support sizes for each CO.]
Description [] Description []
......
src/map/if/if.h
...@@ -535,7 +535,7 @@ extern void If_ObjPrint( If_Obj_t * pObj ); ...@@ -535,7 +535,7 @@ extern void If_ObjPrint( If_Obj_t * pObj );
/*=== abcRec3.c ============================================================*/ /*=== abcRec3.c ============================================================*/
extern int If_CutDelayRecCost(If_Man_t* p, If_Cut_t* pCut, If_Obj_t * pObj); extern int If_CutDelayRecCost(If_Man_t* p, If_Cut_t* pCut, If_Obj_t * pObj);
extern int If_CutDelayRecCost2(If_Man_t* p, If_Cut_t* pCut, If_Obj_t * pObj); extern int If_CutDelayRecCost2(If_Man_t* p, If_Cut_t* pCut, If_Obj_t * pObj);
extern int If_CutDelayRecCost2(If_Man_t* p, If_Cut_t* pCut, If_Obj_t * pObj); extern int If_CutDelayRecCost3(If_Man_t* p, If_Cut_t* pCut, If_Obj_t * pObj);
extern ABC_DLL int Abc_NtkRecIsRunning(); extern ABC_DLL int Abc_NtkRecIsRunning();
extern ABC_DLL int Abc_NtkRecIsRunning2(); extern ABC_DLL int Abc_NtkRecIsRunning2();
extern ABC_DLL int Abc_NtkRecIsRunning3(); extern ABC_DLL int Abc_NtkRecIsRunning3();
......
src/map/if/ifTruth.c
...@@ -19,6 +19,7 @@ ...@@ -19,6 +19,7 @@
***********************************************************************/ ***********************************************************************/
#include "if.h" #include "if.h"
#include "misc/util/utilTruth.h"
ABC_NAMESPACE_IMPL_START ABC_NAMESPACE_IMPL_START
...@@ -450,261 +451,6 @@ int If_CutTruthMinimize( If_Man_t * p, If_Cut_t * pCut ) ...@@ -450,261 +451,6 @@ int If_CutTruthMinimize( If_Man_t * p, If_Cut_t * pCut )
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
static inline int Abc_TtWordNum( int nVars ) { return nVars <= 6 ? 1 : 1 << (nVars-6); }
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
static inline void Abc_TtCopy( word * pOut, word * pIn, int nWords, int fCompl )
{
int w;
if ( fCompl )
for ( w = 0; w < nWords; w++ )
pOut[w] = ~pIn[w];
else
for ( w = 0; w < nWords; w++ )
pOut[w] = pIn[w];
}
static inline void Abc_TtAnd( word * pOut, word * pIn1, word * pIn2, int nWords, int fCompl )
{
int w;
if ( fCompl )
for ( w = 0; w < nWords; w++ )
pOut[w] = ~(pIn1[w] & pIn2[w]);
else
for ( w = 0; w < nWords; w++ )
pOut[w] = pIn1[w] & pIn2[w];
}
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
static inline int Abc_TtSuppIsMinBase( int Supp )
{
return (Supp & (Supp+1)) == 0;
}
static inline int Abc_Tt6HasVar( word t, int iVar )
{
static word Truth6[6] = {
0xAAAAAAAAAAAAAAAA,
0xCCCCCCCCCCCCCCCC,
0xF0F0F0F0F0F0F0F0,
0xFF00FF00FF00FF00,
0xFFFF0000FFFF0000,
0xFFFFFFFF00000000
};
return (t & ~Truth6[iVar]) != ((t & Truth6[iVar]) >> (1<<iVar));
}
static inline int Abc_TtHasVar( word * t, int nVars, int iVar )
{
static word Truth6[6] = {
0xAAAAAAAAAAAAAAAA,
0xCCCCCCCCCCCCCCCC,
0xF0F0F0F0F0F0F0F0,
0xFF00FF00FF00FF00,
0xFFFF0000FFFF0000,
0xFFFFFFFF00000000
};
int nWords = Abc_TtWordNum( nVars );
assert( iVar < nVars );
if ( iVar < 6 )
{
int i, Shift = (1 << iVar);
for ( i = 0; i < nWords; i++ )
if ( (t[i] & ~Truth6[iVar]) != ((t[i] & Truth6[iVar]) >> Shift) )
return 1;
return 0;
}
else
{
int i, k, Step = (1 << (iVar - 6));
for ( k = 0; k < nWords; k += 2*Step )
{
for ( i = 0; i < Step; i++ )
if ( t[i] != t[Step+i] )
return 1;
t += 2*Step;
}
return 0;
}
}
static inline int Abc_TtSupport( word * t, int nVars )
{
int v, Supp = 0;
for ( v = 0; v < nVars; v++ )
if ( Abc_TtHasVar( t, nVars, v ) )
Supp |= (1 << v);
return Supp;
}
static inline int Abc_TtSupportSize( word * t, int nVars )
{
int v, SuppSize = 0;
for ( v = 0; v < nVars; v++ )
if ( Abc_TtHasVar( t, nVars, v ) )
SuppSize++;
return SuppSize;
}
static inline int Abc_TtSupportAndSize( word * t, int nVars, int * pSuppSize )
{
int v, Supp = 0;
*pSuppSize = 0;
for ( v = 0; v < nVars; v++ )
if ( Abc_TtHasVar( t, nVars, v ) )
Supp |= (1 << v), (*pSuppSize)++;
return Supp;
}
static inline int Abc_Tt6SupportAndSize( word t, int nVars, int * pSuppSize )
{
int v, Supp = 0;
*pSuppSize = 0;
assert( nVars <= 6 );
for ( v = 0; v < nVars; v++ )
if ( Abc_Tt6HasVar( t, v ) )
Supp |= (1 << v), (*pSuppSize)++;
return Supp;
}
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
static inline word Abc_Tt6SwapVars( word Truth, int iVar, int jVar )
{
static word PPMasks[6][6] = {
{ 0x2222222222222222, 0x0A0A0A0A0A0A0A0A, 0x00AA00AA00AA00AA, 0x0000AAAA0000AAAA, 0x00000000AAAAAAAA, 0xAAAAAAAAAAAAAAAA },
{ 0x0000000000000000, 0x0C0C0C0C0C0C0C0C, 0x00CC00CC00CC00CC, 0x0000CCCC0000CCCC, 0x00000000CCCCCCCC, 0xCCCCCCCCCCCCCCCC },
{ 0x0000000000000000, 0x0000000000000000, 0x00F000F000F000F0, 0x0000F0F00000F0F0, 0x00000000F0F0F0F0, 0xF0F0F0F0F0F0F0F0 },
{ 0x0000000000000000, 0x0000000000000000, 0x0000000000000000, 0x0000FF000000FF00, 0x00000000FF00FF00, 0xFF00FF00FF00FF00 },
{ 0x0000000000000000, 0x0000000000000000, 0x0000000000000000, 0x0000000000000000, 0x00000000FFFF0000, 0xFFFF0000FFFF0000 },
{ 0x0000000000000000, 0x0000000000000000, 0x0000000000000000, 0x0000000000000000, 0x0000000000000000, 0xFFFFFFFF00000000 }
};
int shift;
word low2High, high2Low;
assert( iVar <= 5 && jVar <= 5 && iVar < jVar );
shift = (1 << jVar) - (1 << iVar);
low2High = (Truth & PPMasks[iVar][jVar - 1] ) << shift;
Truth &= ~PPMasks[iVar][jVar - 1];
high2Low = (Truth & (PPMasks[iVar][jVar - 1] << shift )) >> shift;
Truth &= ~(PPMasks[iVar][jVar - 1] << shift);
return Truth | low2High | high2Low;
}
static inline void Abc_TtSwapVars( word * pTruth, int nVars, int * V2P, int * P2V, int iVar, int jVar )
{
word low2High, high2Low, temp;
int nWords = Abc_TtWordNum(nVars);
int shift, step, iStep, jStep;
int w = 0, i = 0, j = 0;
static word PPMasks[6][6] = {
{ 0x2222222222222222, 0x0A0A0A0A0A0A0A0A, 0x00AA00AA00AA00AA, 0x0000AAAA0000AAAA, 0x00000000AAAAAAAA, 0xAAAAAAAAAAAAAAAA },
{ 0x0000000000000000, 0x0C0C0C0C0C0C0C0C, 0x00CC00CC00CC00CC, 0x0000CCCC0000CCCC, 0x00000000CCCCCCCC, 0xCCCCCCCCCCCCCCCC },
{ 0x0000000000000000, 0x0000000000000000, 0x00F000F000F000F0, 0x0000F0F00000F0F0, 0x00000000F0F0F0F0, 0xF0F0F0F0F0F0F0F0 },
{ 0x0000000000000000, 0x0000000000000000, 0x0000000000000000, 0x0000FF000000FF00, 0x00000000FF00FF00, 0xFF00FF00FF00FF00 },
{ 0x0000000000000000, 0x0000000000000000, 0x0000000000000000, 0x0000000000000000, 0x00000000FFFF0000, 0xFFFF0000FFFF0000 },
{ 0x0000000000000000, 0x0000000000000000, 0x0000000000000000, 0x0000000000000000, 0x0000000000000000, 0xFFFFFFFF00000000 }
};
if ( iVar == jVar )
return;
if ( jVar < iVar )
{
int varTemp = jVar;
jVar = iVar;
iVar = varTemp;
}
if ( iVar <= 5 && jVar <= 5 )
{
shift = (1 << jVar) - (1 << iVar);
for ( w = 0; w < nWords; w++ )
{
low2High = (pTruth[w] & PPMasks[iVar][jVar - 1] ) << shift;
pTruth[w] &= ~PPMasks[iVar][jVar - 1];
high2Low = (pTruth[w] & (PPMasks[iVar][jVar - 1] << shift )) >> shift;
pTruth[w] &= ~(PPMasks[iVar][jVar - 1] << shift);
pTruth[w] = pTruth[w] | low2High | high2Low;
}
}
else if ( iVar <= 5 && jVar > 5 )
{
step = Abc_TtWordNum(jVar + 1)/2;
shift = 1 << iVar;
for ( w = 0; w < nWords; w += 2*step )
{
for (j = 0; j < step; j++)
{
low2High = (pTruth[w + j] & PPMasks[iVar][5]) >> shift;
pTruth[w + j] &= ~PPMasks[iVar][5];
high2Low = (pTruth[w + step + j] & (PPMasks[iVar][5] >> shift)) << shift;
pTruth[w + step + j] &= ~(PPMasks[iVar][5] >> shift);
pTruth[w + j] |= high2Low;
pTruth[w + step + j] |= low2High;
}
}
}
else
{
iStep = Abc_TtWordNum(iVar + 1)/2;
jStep = Abc_TtWordNum(jVar + 1)/2;
for (w = 0; w < nWords; w += 2*jStep)
{
for (i = 0; i < jStep; i += 2*iStep)
{
for (j = 0; j < iStep; j++)
{
temp = pTruth[w + iStep + i + j];
pTruth[w + iStep + i + j] = pTruth[w + jStep + i + j];
pTruth[w + jStep + i + j] = temp;
}
}
}
}
if ( V2P && P2V )
{
V2P[P2V[iVar]] = jVar;
V2P[P2V[jVar]] = iVar;
P2V[iVar] ^= P2V[jVar];
P2V[jVar] ^= P2V[iVar];
P2V[iVar] ^= P2V[jVar];
}
}
/**Function************************************************************* /**Function*************************************************************
Synopsis [Performs truth table computation.] Synopsis [Performs truth table computation.]
...@@ -741,7 +487,7 @@ static inline int If_CutTruthMinimize6( If_Man_t * p, If_Cut_t * pCut ) ...@@ -741,7 +487,7 @@ static inline int If_CutTruthMinimize6( If_Man_t * p, If_Cut_t * pCut )
if ( k < i ) if ( k < i )
{ {
pCut->pLeaves[k] = pCut->pLeaves[i]; pCut->pLeaves[k] = pCut->pLeaves[i];
*If_CutTruthW(pCut) = Abc_Tt6SwapVars( *If_CutTruthW(pCut), k, i ); Abc_TtSwapVars( If_CutTruthW(pCut), pCut->nLimit, k, i );
} }
k++; k++;
} }
...@@ -760,7 +506,7 @@ static inline word If_TruthStretch6( word Truth, If_Cut_t * pCut, If_Cut_t * pCu ...@@ -760,7 +506,7 @@ static inline word If_TruthStretch6( word Truth, If_Cut_t * pCut, If_Cut_t * pCu
continue; continue;
assert( pCut0->pLeaves[k] == pCut->pLeaves[i] ); assert( pCut0->pLeaves[k] == pCut->pLeaves[i] );
if ( k < i ) if ( k < i )
Truth = Abc_Tt6SwapVars( Truth, k, i ); Abc_TtSwapVars( &Truth, pCut->nLimit, k, i );
k--; k--;
} }
return Truth; return Truth;
...@@ -804,7 +550,7 @@ static inline int If_CutTruthMinimize21( If_Man_t * p, If_Cut_t * pCut ) ...@@ -804,7 +550,7 @@ static inline int If_CutTruthMinimize21( If_Man_t * p, If_Cut_t * pCut )
if ( k < i ) if ( k < i )
{ {
pCut->pLeaves[k] = pCut->pLeaves[i]; pCut->pLeaves[k] = pCut->pLeaves[i];
Abc_TtSwapVars( pTruth, nVars, NULL, NULL, k, i ); Abc_TtSwapVars( pTruth, nVars, k, i );
} }
k++; k++;
} }
...@@ -848,7 +594,7 @@ static inline int If_CutTruthMinimize2( If_Man_t * p, If_Cut_t * pCut ) ...@@ -848,7 +594,7 @@ static inline int If_CutTruthMinimize2( If_Man_t * p, If_Cut_t * pCut )
if ( k < i ) if ( k < i )
{ {
pCut->pLeaves[k] = pCut->pLeaves[i]; pCut->pLeaves[k] = pCut->pLeaves[i];
Abc_TtSwapVars( If_CutTruthW(pCut), pCut->nLimit, NULL, NULL, k, i ); Abc_TtSwapVars( If_CutTruthW(pCut), pCut->nLimit, k, i );
} }
k++; k++;
} }
...@@ -867,7 +613,7 @@ static inline void If_TruthStretch2( word * pTruth, If_Cut_t * pCut, If_Cut_t * ...@@ -867,7 +613,7 @@ static inline void If_TruthStretch2( word * pTruth, If_Cut_t * pCut, If_Cut_t *
continue; continue;
assert( pCut0->pLeaves[k] == pCut->pLeaves[i] ); assert( pCut0->pLeaves[k] == pCut->pLeaves[i] );
if ( k < i ) if ( k < i )
Abc_TtSwapVars( pTruth, pCut->nLimit, NULL, NULL, k, i ); Abc_TtSwapVars( pTruth, pCut->nLimit, k, i );
k--; k--;
} }
} }
......
src/misc/util/utilTruth.h 0 → 100644
/**CFile****************************************************************
FileName [utilTruth.h]
SystemName [ABC: Logic synthesis and verification system.]
PackageName [Truth table manipulation.]
Synopsis [Truth table manipulation.]
Author [Alan Mishchenko]
Affiliation [UC Berkeley]
Date [Ver. 1.0. Started - October 28, 2012.]
Revision [$Id: utilTruth.h,v 1.00 2012/10/28 00:00:00 alanmi Exp $]
***********************************************************************/
#ifndef ABC__misc__util__utilTruth_h
#define ABC__misc__util__utilTruth_h
////////////////////////////////////////////////////////////////////////
/// INCLUDES ///
////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////
/// PARAMETERS ///
////////////////////////////////////////////////////////////////////////
ABC_NAMESPACE_HEADER_START
////////////////////////////////////////////////////////////////////////
/// BASIC TYPES ///
////////////////////////////////////////////////////////////////////////
static word s_Truths6[6] = {
0xAAAAAAAAAAAAAAAA,
0xCCCCCCCCCCCCCCCC,
0xF0F0F0F0F0F0F0F0,
0xFF00FF00FF00FF00,
0xFFFF0000FFFF0000,
0xFFFFFFFF00000000
};
////////////////////////////////////////////////////////////////////////
/// MACRO DEFINITIONS ///
////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////
/// FUNCTION DECLARATIONS ///
////////////////////////////////////////////////////////////////////////
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
static inline int Abc_TtWordNum( int nVars ) { return nVars <= 6 ? 1 : 1 << (nVars-6); }
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
static inline void Abc_TtCopy( word * pOut, word * pIn, int nWords, int fCompl )
{
int w;
if ( fCompl )
for ( w = 0; w < nWords; w++ )
pOut[w] = ~pIn[w];
else
for ( w = 0; w < nWords; w++ )
pOut[w] = pIn[w];
}
static inline void Abc_TtAnd( word * pOut, word * pIn1, word * pIn2, int nWords, int fCompl )
{
int w;
if ( fCompl )
for ( w = 0; w < nWords; w++ )
pOut[w] = ~(pIn1[w] & pIn2[w]);
else
for ( w = 0; w < nWords; w++ )
pOut[w] = pIn1[w] & pIn2[w];
}
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
static inline int Abc_TtSuppIsMinBase( int Supp )
{
return (Supp & (Supp+1)) == 0;
}
static inline int Abc_Tt6HasVar( word t, int iVar )
{
return (t & ~s_Truths6[iVar]) != ((t & s_Truths6[iVar]) >> (1<<iVar));
}
static inline int Abc_TtHasVar( word * t, int nVars, int iVar )
{
int nWords = Abc_TtWordNum( nVars );
assert( iVar < nVars );
if ( iVar < 6 )
{
int i, Shift = (1 << iVar);
for ( i = 0; i < nWords; i++ )
if ( (t[i] & ~s_Truths6[iVar]) != ((t[i] & s_Truths6[iVar]) >> Shift) )
return 1;
return 0;
}
else
{
int i, k, Step = (1 << (iVar - 6));
for ( k = 0; k < nWords; k += 2*Step, t += 2*Step )
for ( i = 0; i < Step; i++ )
if ( t[i] != t[Step+i] )
return 1;
return 0;
}
}
static inline int Abc_TtSupport( word * t, int nVars )
{
int v, Supp = 0;
for ( v = 0; v < nVars; v++ )
if ( Abc_TtHasVar( t, nVars, v ) )
Supp |= (1 << v);
return Supp;
}
static inline int Abc_TtSupportSize( word * t, int nVars )
{
int v, SuppSize = 0;
for ( v = 0; v < nVars; v++ )
if ( Abc_TtHasVar( t, nVars, v ) )
SuppSize++;
return SuppSize;
}
static inline int Abc_TtSupportAndSize( word * t, int nVars, int * pSuppSize )
{
int v, Supp = 0;
*pSuppSize = 0;
for ( v = 0; v < nVars; v++ )
if ( Abc_TtHasVar( t, nVars, v ) )
Supp |= (1 << v), (*pSuppSize)++;
return Supp;
}
static inline int Abc_Tt6SupportAndSize( word t, int nVars, int * pSuppSize )
{
int v, Supp = 0;
*pSuppSize = 0;
assert( nVars <= 6 );
for ( v = 0; v < nVars; v++ )
if ( Abc_Tt6HasVar( t, v ) )
Supp |= (1 << v), (*pSuppSize)++;
return Supp;
}
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
static inline void Abc_TtSwapVars( word * pTruth, int nVars, int iVar, int jVar )
{
static word PPMasks[6][6] = {
{ 0x2222222222222222, 0x0A0A0A0A0A0A0A0A, 0x00AA00AA00AA00AA, 0x0000AAAA0000AAAA, 0x00000000AAAAAAAA, 0xAAAAAAAAAAAAAAAA },
{ 0x0000000000000000, 0x0C0C0C0C0C0C0C0C, 0x00CC00CC00CC00CC, 0x0000CCCC0000CCCC, 0x00000000CCCCCCCC, 0xCCCCCCCCCCCCCCCC },
{ 0x0000000000000000, 0x0000000000000000, 0x00F000F000F000F0, 0x0000F0F00000F0F0, 0x00000000F0F0F0F0, 0xF0F0F0F0F0F0F0F0 },
{ 0x0000000000000000, 0x0000000000000000, 0x0000000000000000, 0x0000FF000000FF00, 0x00000000FF00FF00, 0xFF00FF00FF00FF00 },
{ 0x0000000000000000, 0x0000000000000000, 0x0000000000000000, 0x0000000000000000, 0x00000000FFFF0000, 0xFFFF0000FFFF0000 },
{ 0x0000000000000000, 0x0000000000000000, 0x0000000000000000, 0x0000000000000000, 0x0000000000000000, 0xFFFFFFFF00000000 }
};
if ( nVars <= 6 )
{
int shift;
word low2High, high2Low;
assert( iVar <= 5 && jVar <= 5 && iVar < jVar );
shift = (1 << jVar) - (1 << iVar);
low2High = (pTruth[0] & PPMasks[iVar][jVar - 1] ) << shift;
pTruth[0] &= ~PPMasks[iVar][jVar - 1];
high2Low = (pTruth[0] & (PPMasks[iVar][jVar - 1] << shift )) >> shift;
pTruth[0] &= ~(PPMasks[iVar][jVar - 1] << shift);
pTruth[0] |= low2High | high2Low;
}
else
{
word low2High, high2Low, temp;
int nWords = Abc_TtWordNum(nVars);
int shift, step, iStep, jStep;
int w = 0, i = 0, j = 0;
if ( iVar == jVar )
return;
if ( jVar < iVar )
ABC_SWAP( int, iVar, jVar );
if ( iVar <= 5 && jVar <= 5 )
{
shift = (1 << jVar) - (1 << iVar);
for ( w = 0; w < nWords; w++ )
{
low2High = (pTruth[w] & PPMasks[iVar][jVar - 1] ) << shift;
pTruth[w] &= ~PPMasks[iVar][jVar - 1];
high2Low = (pTruth[w] & (PPMasks[iVar][jVar - 1] << shift )) >> shift;
pTruth[w] &= ~(PPMasks[iVar][jVar - 1] << shift);
pTruth[w] |= low2High | high2Low;
}
}
else if ( iVar <= 5 && jVar > 5 )
{
step = Abc_TtWordNum(jVar + 1)/2;
shift = 1 << iVar;
for ( w = 0; w < nWords; w += 2*step )
{
for (j = 0; j < step; j++)
{
low2High = (pTruth[w + j] & PPMasks[iVar][5]) >> shift;
pTruth[w + j] &= ~PPMasks[iVar][5];
high2Low = (pTruth[w + step + j] & (PPMasks[iVar][5] >> shift)) << shift;
pTruth[w + step + j] &= ~(PPMasks[iVar][5] >> shift);
pTruth[w + j] |= high2Low;
pTruth[w + step + j] |= low2High;
}
}
}
else
{
iStep = Abc_TtWordNum(iVar + 1)/2;
jStep = Abc_TtWordNum(jVar + 1)/2;
for (w = 0; w < nWords; w += 2*jStep)
{
for (i = 0; i < jStep; i += 2*iStep)
{
for (j = 0; j < iStep; j++)
{
temp = pTruth[w + iStep + i + j];
pTruth[w + iStep + i + j] = pTruth[w + jStep + i + j];
pTruth[w + jStep + i + j] = temp;
}
}
}
}
}
}
/**Function*************************************************************
Synopsis [Stretch truthtable to have more input variables.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
static void Abc_TtStretch5( unsigned * pInOut, int nVarS, int nVarB )
{
int w, i, step, nWords;
if ( nVarS == nVarB )
return;
assert( nVarS < nVarB );
step = Abc_TruthWordNum(nVarS);
nWords = Abc_TruthWordNum(nVarB);
if ( step == nWords )
return;
assert( step < nWords );
for ( w = 0; w < nWords; w += step )
for ( i = 0; i < step; i++ )
pInOut[w + i] = pInOut[i];
}
static void Abc_TtStretch6( word * pInOut, int nVarS, int nVarB )
{
int w, i, step, nWords;
if ( nVarS == nVarB )
return;
assert( nVarS < nVarB );
step = Abc_Truth6WordNum(nVarS);
nWords = Abc_Truth6WordNum(nVarB);
if ( step == nWords )
return;
assert( step < nWords );
for ( w = 0; w < nWords; w += step )
for ( i = 0; i < step; i++ )
pInOut[w + i] = pInOut[i];
}
/*=== utilTruth.c ===========================================================*/
ABC_NAMESPACE_HEADER_END
#endif
////////////////////////////////////////////////////////////////////////
/// END OF FILE ///
////////////////////////////////////////////////////////////////////////
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