/**CFile**************************************************************** FileName [cbaBlast.c] SystemName [ABC: Logic synthesis and verification system.] PackageName [Hierarchical word-level netlist.] Synopsis [Collapsing word-level design.] Author [Alan Mishchenko] Affiliation [UC Berkeley] Date [Ver. 1.0. Started - July 21, 2015.] Revision [$Id: cbaBlast.c,v 1.00 2014/11/29 00:00:00 alanmi Exp $] ***********************************************************************/ #include "cba.h" #include "base/abc/abc.h" #include "map/mio/mio.h" #include "bool/dec/dec.h" #include "base/main/mainInt.h" ABC_NAMESPACE_IMPL_START //////////////////////////////////////////////////////////////////////// /// DECLARATIONS /// //////////////////////////////////////////////////////////////////////// //////////////////////////////////////////////////////////////////////// /// FUNCTION DEFINITIONS /// //////////////////////////////////////////////////////////////////////// /**Function************************************************************* Synopsis [Helper functions.] Description [] SideEffects [] SeeAlso [] ***********************************************************************/ int Cba_NtkPrepareBits( Cba_Ntk_t * p ) { int i, nBits = 0; Cba_NtkCleanFonCopies( p ); Cba_NtkForEachFon( p, i ) { Cba_FonSetCopy( p, i, nBits ); nBits += Cba_FonRangeSize( p, i ); } return nBits; } int * Cba_VecCopy( Vec_Int_t * vOut, int * pArray, int nSize ) { int i; Vec_IntClear( vOut ); for( i = 0; i < nSize; i++) Vec_IntPush( vOut, pArray[i] ); return Vec_IntArray( vOut ); } int Cba_ReadHexDigit( char HexChar ) { if ( HexChar >= '0' && HexChar <= '9' ) return HexChar - '0'; if ( HexChar >= 'A' && HexChar <= 'F' ) return HexChar - 'A' + 10; if ( HexChar >= 'a' && HexChar <= 'f' ) return HexChar - 'a' + 10; assert( 0 ); // not a hexadecimal symbol return -1; // return value which makes no sense } void Cba_BlastConst( Cba_Ntk_t * p, Vec_Int_t * vOut, int iFon, int nTotal, int fSigned ) { char * pConst = Cba_NtkConst(p, Cba_FonConst(iFon)); char * pLimit = pConst + strlen(pConst); int i, Number, nBits = atoi( pConst ); assert( nBits <= nTotal ); while ( *pConst >= '0' && *pConst <= '9' ) pConst++; assert( *pConst == '\'' ); pConst++; if ( *pConst == 's' ) // assume signedness is already used in setting fSigned pConst++; Vec_IntClear( vOut ); if ( *pConst == 'b' ) { while ( --pLimit > pConst ) Vec_IntPush( vOut, *pLimit == '0' ? 0 : 1 ); } else if ( *pConst == 'h' ) { while ( --pLimit > pConst ) { Number = Cba_ReadHexDigit( *pLimit ); for ( i = 0; i < 4; i++ ) Vec_IntPush( vOut, (Number >> i) & 1 ); } if ( Vec_IntSize(vOut) > nTotal ) Vec_IntShrink( vOut, nTotal ); } else if ( *pConst == 'd' ) { Number = atoi( pConst+1 ); assert( Number <= 0x7FFFFFFF ); for ( i = 0; i < 32; i++ ) Vec_IntPush( vOut, (Number >> i) & 1 ); if ( Vec_IntSize(vOut) > nTotal ) Vec_IntShrink( vOut, nTotal ); } else assert( 0 ); if ( fSigned && Vec_IntSize(vOut) < nTotal ) Vec_IntFillExtra( vOut, nTotal - Vec_IntSize(vOut), Vec_IntEntryLast(vOut) ); } int * Cba_VecLoadFanins( Cba_Ntk_t * p, Vec_Int_t * vOut, int iFon, int * pFanins, int nFanins, int nTotal, int fSigned ) { assert( nFanins <= nTotal ); if ( Cba_FonIsReal(iFon) ) { int i, Fill = fSigned ? pFanins[nFanins-1] : 0; Vec_IntClear( vOut ); for( i = 0; i < nTotal; i++) Vec_IntPush( vOut, i < nFanins ? pFanins[i] : Fill ); } else if ( Cba_FonIsConst(iFon) ) Cba_BlastConst( p, vOut, iFon, nTotal, fSigned ); else if ( iFon == 0 ) // undriven input Vec_IntFill( vOut, nTotal, 0 ); else assert( 0 ); assert( Vec_IntSize(vOut) == nTotal ); return Vec_IntArray( vOut ); } int Cba_NtkMuxTree_rec( Gia_Man_t * pNew, int * pCtrl, int nCtrl, Vec_Int_t * vData, int Shift ) { int iLit0, iLit1; if ( nCtrl == 0 ) return Vec_IntEntry( vData, Shift ); iLit0 = Cba_NtkMuxTree_rec( pNew, pCtrl, nCtrl-1, vData, Shift ); iLit1 = Cba_NtkMuxTree_rec( pNew, pCtrl, nCtrl-1, vData, Shift + (1<<(nCtrl-1)) ); return Gia_ManHashMux( pNew, pCtrl[nCtrl-1], iLit1, iLit0 ); } /**Function************************************************************* Synopsis [Bit blasting for specific operations.] Description [] SideEffects [] SeeAlso [] ***********************************************************************/ void Cba_BlastShiftRight( Gia_Man_t * pNew, int * pNum, int nNum, int * pShift, int nShift, int fSticky, Vec_Int_t * vRes ) { int * pRes = Cba_VecCopy( vRes, pNum, nNum ); int Fill = fSticky ? pNum[nNum-1] : 0; int i, j, fShort = 0; if ( nShift > 32 ) nShift = 32; assert( nShift <= 32 ); for( i = 0; i < nShift; i++ ) for( j = 0; j < nNum - fSticky; j++ ) { if( fShort || j + (1<= nNum ) { pRes[j] = Gia_ManHashMux( pNew, pShift[i], Fill, pRes[j] ); if ( (1< nNum ) fShort = 1; } else pRes[j] = Gia_ManHashMux( pNew, pShift[i], pRes[j+(1< 32 ) nShift = 32; assert( nShift <= 32 ); for( i = 0; i < nShift; i++ ) for( j = nNum-1; j >= fSticky; j-- ) { if( fShort || (1< j ) { pRes[j] = Gia_ManHashMux( pNew, pShift[i], Fill, pRes[j] ); if ( (1< nNum ) fShort = 1; } else pRes[j] = Gia_ManHashMux( pNew, pShift[i], pRes[j-(1<= (1<= 0; k-- ) { iRes = Gia_ManHashMux( pNew, iKnown, iRes, Gia_ManHashAnd(pNew, Abc_LitNot(pArg0[k]), pArg1[k]) ); iKnown = Gia_ManHashOr( pNew, iKnown, Gia_ManHashXor(pNew, pArg0[k], pArg1[k]) ); if ( iKnown == 1 ) break; } return iRes; } void Cba_BlastLess_rec( Gia_Man_t * pNew, int * pArg0, int * pArg1, int nBits, int * pYes, int * pNo ) { if ( nBits > 1 ) { int Yes = Gia_ManHashAnd( pNew, Abc_LitNot(pArg0[nBits-1]), pArg1[nBits-1] ), YesR; int No = Gia_ManHashAnd( pNew, Abc_LitNot(pArg1[nBits-1]), pArg0[nBits-1] ), NoR; if ( Yes == 1 || No == 1 ) { *pYes = Yes; *pNo = No; return; } Cba_BlastLess_rec( pNew, pArg0, pArg1, nBits-1, &YesR, &NoR ); *pYes = Gia_ManHashOr( pNew, Yes, Gia_ManHashAnd(pNew, Abc_LitNot(No), YesR) ); *pNo = Gia_ManHashOr( pNew, No, Gia_ManHashAnd(pNew, Abc_LitNot(Yes), NoR ) ); return; } assert( nBits == 1 ); *pYes = Gia_ManHashAnd( pNew, Abc_LitNot(pArg0[0]), pArg1[0] ); *pNo = Gia_ManHashAnd( pNew, Abc_LitNot(pArg1[0]), pArg0[0] ); } int Cba_BlastLess( Gia_Man_t * pNew, int * pArg0, int * pArg1, int nBits ) { int Yes, No; if ( nBits == 0 ) return 0; Cba_BlastLess_rec( pNew, pArg0, pArg1, nBits, &Yes, &No ); return Yes; } int Cba_BlastLessSigned( Gia_Man_t * pNew, int * pArg0, int * pArg1, int nBits ) { int iDiffSign = Gia_ManHashXor( pNew, pArg0[nBits-1], pArg1[nBits-1] ); return Gia_ManHashMux( pNew, iDiffSign, pArg0[nBits-1], Cba_BlastLess(pNew, pArg0, pArg1, nBits-1) ); } void Cba_BlastFullAdder( Gia_Man_t * pNew, int a, int b, int c, int * pc, int * ps ) { int fUseXor = 0; if ( fUseXor ) { int Xor = Gia_ManHashXor(pNew, a, b); int And1 = Gia_ManHashAnd(pNew, a, b); int And2 = Gia_ManHashAnd(pNew, c, Xor); *ps = Gia_ManHashXor(pNew, c, Xor); *pc = Gia_ManHashOr (pNew, And1, And2); } else { int And1 = Gia_ManHashAnd(pNew, a, b); int And1_= Gia_ManHashAnd(pNew, Abc_LitNot(a), Abc_LitNot(b)); int Xor = Abc_LitNot(Gia_ManHashOr(pNew, And1, And1_)); int And2 = Gia_ManHashAnd(pNew, c, Xor); int And2_= Gia_ManHashAnd(pNew, Abc_LitNot(c), Abc_LitNot(Xor)); *ps = Abc_LitNot(Gia_ManHashOr(pNew, And2, And2_)); *pc = Gia_ManHashOr (pNew, And1, And2); } } int Cba_BlastAdder( Gia_Man_t * pNew, int Carry, int * pAdd0, int * pAdd1, int nBits ) // result is in pAdd0 { int b; for ( b = 0; b < nBits; b++ ) Cba_BlastFullAdder( pNew, pAdd0[b], pAdd1[b], Carry, &Carry, &pAdd0[b] ); return Carry; } void Cba_BlastSubtract( Gia_Man_t * pNew, int * pAdd0, int * pAdd1, int nBits ) // result is in pAdd0 { int b, Carry = 1; for ( b = 0; b < nBits; b++ ) Cba_BlastFullAdder( pNew, pAdd0[b], Abc_LitNot(pAdd1[b]), Carry, &Carry, &pAdd0[b] ); } void Cba_BlastMinus( Gia_Man_t * pNew, int * pNum, int nNum, Vec_Int_t * vRes ) { int * pRes = Cba_VecCopy( vRes, pNum, nNum ); int i, invert = 0; for ( i = 0; i < nNum; i++ ) { pRes[i] = Gia_ManHashMux( pNew, invert, Abc_LitNot(pRes[i]), pRes[i] ); invert = Gia_ManHashOr( pNew, invert, pNum[i] ); } } void Cba_BlastMultiplier2( Gia_Man_t * pNew, int * pArg0, int * pArg1, int nBits, Vec_Int_t * vTemp, Vec_Int_t * vRes ) { int i, j; Vec_IntFill( vRes, nBits, 0 ); for ( i = 0; i < nBits; i++ ) { Vec_IntFill( vTemp, i, 0 ); for ( j = 0; Vec_IntSize(vTemp) < nBits; j++ ) Vec_IntPush( vTemp, Gia_ManHashAnd(pNew, pArg0[j], pArg1[i]) ); assert( Vec_IntSize(vTemp) == nBits ); Cba_BlastAdder( pNew, 0, Vec_IntArray(vRes), Vec_IntArray(vTemp), nBits ); } } void Cba_BlastFullAdderCtrl( Gia_Man_t * pNew, int a, int ac, int b, int c, int * pc, int * ps, int fNeg ) { int And = Abc_LitNotCond( Gia_ManHashAnd(pNew, a, ac), fNeg ); Cba_BlastFullAdder( pNew, And, b, c, pc, ps ); } void Cba_BlastFullAdderSubtr( Gia_Man_t * pNew, int a, int b, int c, int * pc, int * ps, int fSub ) { Cba_BlastFullAdder( pNew, Gia_ManHashXor(pNew, a, fSub), b, c, pc, ps ); } void Cba_BlastMultiplier( Gia_Man_t * pNew, int * pArgA, int * pArgB, int nArgA, int nArgB, Vec_Int_t * vTemp, Vec_Int_t * vRes, int fSigned ) { int * pRes, * pArgC, * pArgS, a, b, Carry = fSigned; assert( nArgA > 0 && nArgB > 0 ); assert( fSigned == 0 || fSigned == 1 ); // prepare result Vec_IntFill( vRes, nArgA + nArgB, 0 ); pRes = Vec_IntArray( vRes ); // prepare intermediate storage Vec_IntFill( vTemp, 2 * nArgA, 0 ); pArgC = Vec_IntArray( vTemp ); pArgS = pArgC + nArgA; // create matrix for ( b = 0; b < nArgB; b++ ) for ( a = 0; a < nArgA; a++ ) Cba_BlastFullAdderCtrl( pNew, pArgA[a], pArgB[b], pArgS[a], pArgC[a], &pArgC[a], a ? &pArgS[a-1] : &pRes[b], fSigned && ((a+1 == nArgA) ^ (b+1 == nArgB)) ); // final addition pArgS[nArgA-1] = fSigned; for ( a = 0; a < nArgA; a++ ) Cba_BlastFullAdderCtrl( pNew, 1, pArgC[a], pArgS[a], Carry, &Carry, &pRes[nArgB+a], 0 ); } void Cba_BlastDivider( Gia_Man_t * pNew, int * pNum, int nNum, int * pDiv, int nDiv, int fQuo, Vec_Int_t * vRes ) { int * pRes = Cba_VecCopy( vRes, pNum, nNum ); int * pQuo = ABC_ALLOC( int, nNum ); int * pTemp = ABC_ALLOC( int, nNum ); int i, j, known, borrow, y_bit, top_bit; assert( nNum == nDiv ); for ( j = nNum - 1; j >= 0; j-- ) { known = 0; for ( i = nNum - 1; i > nNum - 1 - j; i-- ) { known = Gia_ManHashOr( pNew, known, pDiv[i] ); if( known == 1 ) break; } pQuo[j] = known; for ( i = nNum - 1; i >= 0; i-- ) { if ( known == 1 ) break; y_bit = (i >= j) ? pDiv[i-j] : 0; pQuo[j] = Gia_ManHashMux( pNew, known, pQuo[j], Gia_ManHashAnd( pNew, y_bit, Abc_LitNot(pRes[i]) ) ); known = Gia_ManHashOr( pNew, known, Gia_ManHashXor(pNew, y_bit, pRes[i])); } pQuo[j] = Abc_LitNot(pQuo[j]); if ( pQuo[j] == 0 ) continue; borrow = 0; for ( i = 0; i < nNum; i++ ) { top_bit = Gia_ManHashMux( pNew, borrow, Abc_LitNot(pRes[i]), pRes[i] ); y_bit = (i >= j) ? pDiv[i-j] : 0; borrow = Gia_ManHashMux( pNew, pRes[i], Gia_ManHashAnd(pNew, borrow, y_bit), Gia_ManHashOr(pNew, borrow, y_bit) ); pTemp[i] = Gia_ManHashXor( pNew, top_bit, y_bit ); } if ( pQuo[j] == 1 ) Cba_VecCopy( vRes, pTemp, nNum ); else for( i = 0; i < nNum; i++ ) pRes[i] = Gia_ManHashMux( pNew, pQuo[j], pTemp[i], pRes[i] ); } ABC_FREE( pTemp ); if ( fQuo ) Cba_VecCopy( vRes, pQuo, nNum ); ABC_FREE( pQuo ); } // non-restoring divider void Cba_BlastDivider2( Gia_Man_t * pNew, int * pNum, int nNum, int * pDiv, int nDiv, int fQuo, Vec_Int_t * vRes ) { int i, * pRes = Vec_IntArray(vRes); int k, * pQuo = ABC_ALLOC( int, nNum ); assert( nNum > 0 && nDiv > 0 ); assert( Vec_IntSize(vRes) < nNum + nDiv ); for ( i = 0; i < nNum + nDiv; i++ ) pRes[i] = i < nNum ? pNum[i] : 0; for ( i = nNum-1; i >= 0; i-- ) { int Cntrl = i == nNum-1 ? 1 : pQuo[i+1]; int Carry = Cntrl; for ( k = 0; k <= nDiv; k++ ) Cba_BlastFullAdderSubtr( pNew, k < nDiv ? pDiv[k] : 0, pRes[i+k], Carry, &Carry, &pRes[i+k], Cntrl ); pQuo[i] = Abc_LitNot(pRes[i+nDiv]); } if ( fQuo ) Cba_VecCopy( vRes, pQuo, nNum ); else { int Carry = 0, Temp; for ( k = 0; k < nDiv; k++ ) { Cba_BlastFullAdder( pNew, pDiv[k], pRes[k], Carry, &Carry, &Temp ); pRes[k] = Gia_ManHashMux( pNew, pQuo[0], pRes[k], Temp ); } Vec_IntShrink( vRes, nDiv ); } ABC_FREE( pQuo ); } void Cba_BlastDividerSigned( Gia_Man_t * pNew, int * pNum, int nNum, int * pDiv, int nDiv, int fQuo, Vec_Int_t * vRes ) { Vec_Int_t * vNum = Vec_IntAlloc( nNum ); Vec_Int_t * vDiv = Vec_IntAlloc( nDiv ); Vec_Int_t * vRes00 = Vec_IntAlloc( nNum + nDiv ); Vec_Int_t * vRes01 = Vec_IntAlloc( nNum + nDiv ); Vec_Int_t * vRes10 = Vec_IntAlloc( nNum + nDiv ); Vec_Int_t * vRes11 = Vec_IntAlloc( nNum + nDiv ); Vec_Int_t * vRes2 = Vec_IntAlloc( nNum ); int k, iDiffSign = Gia_ManHashXor( pNew, pNum[nNum-1], pDiv[nDiv-1] ); Cba_BlastMinus( pNew, pNum, nNum, vNum ); Cba_BlastMinus( pNew, pDiv, nDiv, vDiv ); Cba_BlastDivider( pNew, pNum, nNum, pDiv, nDiv, fQuo, vRes00 ); Cba_BlastDivider( pNew, pNum, nNum, Vec_IntArray(vDiv), nDiv, fQuo, vRes01 ); Cba_BlastDivider( pNew, Vec_IntArray(vNum), nNum, pDiv, nDiv, fQuo, vRes10 ); Cba_BlastDivider( pNew, Vec_IntArray(vNum), nNum, Vec_IntArray(vDiv), nDiv, fQuo, vRes11 ); Vec_IntClear( vRes ); for ( k = 0; k < nNum; k++ ) { int Data0 = Gia_ManHashMux( pNew, pDiv[nDiv-1], Vec_IntEntry(vRes01,k), Vec_IntEntry(vRes00,k) ); int Data1 = Gia_ManHashMux( pNew, pDiv[nDiv-1], Vec_IntEntry(vRes11,k), Vec_IntEntry(vRes10,k) ); Vec_IntPush( vRes, Gia_ManHashMux(pNew, pNum[nNum-1], Data1, Data0) ); } Cba_BlastMinus( pNew, Vec_IntArray(vRes), nNum, vRes2 ); for ( k = 0; k < nNum; k++ ) Vec_IntWriteEntry( vRes, k, Gia_ManHashMux(pNew, fQuo ? iDiffSign : pNum[nNum-1], Vec_IntEntry(vRes2,k), Vec_IntEntry(vRes,k)) ); Vec_IntFree( vNum ); Vec_IntFree( vDiv ); Vec_IntFree( vRes00 ); Vec_IntFree( vRes01 ); Vec_IntFree( vRes10 ); Vec_IntFree( vRes11 ); Vec_IntFree( vRes2 ); assert( Vec_IntSize(vRes) == nNum ); } void Cba_BlastZeroCondition( Gia_Man_t * pNew, int * pDiv, int nDiv, Vec_Int_t * vRes ) { int i, Entry, iLit = Cba_BlastReduction( pNew, pDiv, nDiv, CBA_BOX_ROR ); Vec_IntForEachEntry( vRes, Entry, i ) Vec_IntWriteEntry( vRes, i, Gia_ManHashAnd(pNew, iLit, Entry) ); } void Cba_BlastTable( Gia_Man_t * pNew, word * pTable, int * pFans, int nFans, int nOuts, Vec_Int_t * vRes ) { extern int Kit_TruthToGia( Gia_Man_t * pMan, unsigned * pTruth, int nVars, Vec_Int_t * vMemory, Vec_Int_t * vLeaves, int fHash ); Vec_Int_t * vMemory = Vec_IntAlloc( 0 ); Vec_Int_t vLeaves = { nFans, nFans, pFans }; word * pTruth = ABC_ALLOC( word, Abc_TtWordNum(nFans) ); int o, i, m, iLit, nMints = (1 << nFans); Vec_IntClear( vRes ); for ( o = 0; o < nOuts; o++ ) { // derive truth table memset( pTruth, 0, sizeof(word) * Abc_TtWordNum(nFans) ); for ( m = 0; m < nMints; m++ ) for ( i = 0; i < nFans; i++ ) if ( Abc_TtGetBit( pTable, m * nFans + i ) ) Abc_TtSetBit( pTruth, m ); // implement truth table if ( nFans < 6 ) pTruth[0] = Abc_Tt6Stretch( pTruth[0], nFans ); iLit = Kit_TruthToGia( pNew, (unsigned *)pTruth, nFans, vMemory, &vLeaves, 1 ); Vec_IntPush( vRes, iLit ); } Vec_IntFree( vMemory ); ABC_FREE( pTruth ); } void Cba_BlastPower( Gia_Man_t * pNew, int * pNum, int nNum, int * pExp, int nExp, Vec_Int_t * vTemp, Vec_Int_t * vRes ) { Vec_Int_t * vDegrees = Vec_IntAlloc( 2*nNum ); Vec_Int_t * vResTemp = Vec_IntAlloc( 2*nNum ); int i, * pDegrees = NULL, * pRes = Vec_IntArray(vRes); int k, * pResTemp = Vec_IntArray(vResTemp); Vec_IntFill( vRes, nNum, 0 ); Vec_IntWriteEntry( vRes, 0, 1 ); for ( i = 0; i < nExp; i++ ) { if ( i == 0 ) pDegrees = Cba_VecCopy( vDegrees, pNum, nNum ); else { Cba_BlastMultiplier2( pNew, pDegrees, pDegrees, nNum, vTemp, vResTemp ); pDegrees = Cba_VecCopy( vDegrees, pResTemp, nNum ); } Cba_BlastMultiplier2( pNew, pRes, pDegrees, nNum, vTemp, vResTemp ); for ( k = 0; k < nNum; k++ ) pRes[k] = Gia_ManHashMux( pNew, pExp[i], pResTemp[k], pRes[k] ); } Vec_IntFree( vResTemp ); Vec_IntFree( vDegrees ); } void Cba_BlastSqrt( Gia_Man_t * pNew, int * pNum, int nNum, Vec_Int_t * vTmp, Vec_Int_t * vRes ) { int * pRes, * pSum, * pSumP; int i, k, Carry = -1; assert( nNum % 2 == 0 ); Vec_IntFill( vRes, nNum/2, 0 ); Vec_IntFill( vTmp, 2*nNum, 0 ); pRes = Vec_IntArray( vRes ); pSum = Vec_IntArray( vTmp ); pSumP = pSum + nNum; for ( i = 0; i < nNum/2; i++ ) { pSumP[0] = pNum[nNum-2*i-2]; pSumP[1] = pNum[nNum-2*i-1]; for ( k = 0; k < i+1; k++ ) pSumP[k+2] = pSum[k]; for ( k = 0; k < i + 3; k++ ) { if ( k >= 2 && k < i + 2 ) // middle ones Cba_BlastFullAdder( pNew, pSumP[k], Abc_LitNot(pRes[i-k+1]), Carry, &Carry, &pSum[k] ); else Cba_BlastFullAdder( pNew, pSumP[k], Abc_LitNot(k ? Carry:1), 1, &Carry, &pSum[k] ); if ( k == 0 || k > i ) Carry = Abc_LitNot(Carry); } pRes[i] = Abc_LitNot(Carry); for ( k = 0; k < i + 3; k++ ) pSum[k] = Gia_ManHashMux( pNew, pRes[i], pSum[k], pSumP[k] ); } Vec_IntReverseOrder( vRes ); } /**Function************************************************************* Synopsis [] Description [] SideEffects [] SeeAlso [] ***********************************************************************/ Gia_Man_t * Cba_NtkBlast( Cba_Ntk_t * p, int fSeq ) { int fUseOldMultiplierBlasting = 0; Gia_Man_t * pTemp, * pNew; Vec_Int_t * vTemp0, * vTemp1, * vTemp2, * vRes; Vec_Str_t * vInit = fSeq ? Vec_StrAlloc(100) : NULL; Vec_Int_t * vBits = &p->vFonBits; int nBits = Cba_NtkPrepareBits( p ); int * pFans0, * pFans1, * pFans2; int nRange, nRange0, nRange1, nRange2; int Type, iFon, iFon0, iFon1, iFon2, fSigned01; int i, k, b, iFin, iObj, iLit, nAndPrev; Vec_IntClear( vBits ); Vec_IntGrow( vBits, nBits ); vTemp0 = Vec_IntAlloc( 1000 ); vTemp1 = Vec_IntAlloc( 1000 ); vTemp2 = Vec_IntAlloc( 1000 ); vRes = Vec_IntAlloc( 1000 ); // clean AND-gate counters memset( p->pDesign->nAnds, 0, sizeof(int) * CBA_BOX_LAST ); // create AIG manager pNew = Gia_ManStart( 5 * Cba_NtkObjNum(p) + 1000 ); pNew->pName = Abc_UtilStrsav( Cba_ManName(p->pDesign) ); Gia_ManHashAlloc( pNew ); // blast in the topological order Cba_NtkForEachObj( p, i ) { Type = Cba_ObjType(p, i); if ( Type == CBA_OBJ_PO ) continue; assert( Vec_IntSize(vBits) == Cba_FonCopy(p, Cba_ObjFon0(p, i)) ); nRange = Cba_ObjRangeSize(p, i); assert( nRange > 0 ); if ( Cba_ObjIsPi(p, i) || Cba_ObjIsSeq(p, i) ) { for ( k = 0; k < nRange; k++ ) Vec_IntPush( vBits, Gia_ManAppendCi(pNew) ); assert( Type == CBA_BOX_DFFCPL || Cba_ObjFonNum(p, i) == 1 ); continue; } assert( Cba_ObjFinNum(p, i) > 0 ); iFon0 = Cba_ObjFinNum(p, i) > 0 ? Cba_ObjFinFon(p, i, 0) : -1; iFon1 = Cba_ObjFinNum(p, i) > 1 ? Cba_ObjFinFon(p, i, 1) : -1; iFon2 = Cba_ObjFinNum(p, i) > 2 ? Cba_ObjFinFon(p, i, 2) : -1; nRange0 = Cba_ObjFinNum(p, i) > 0 ? Cba_FonRangeSize(p, iFon0) : -1; nRange1 = Cba_ObjFinNum(p, i) > 1 ? Cba_FonRangeSize(p, iFon1) : -1; nRange2 = Cba_ObjFinNum(p, i) > 2 ? Cba_FonRangeSize(p, iFon2) : -1; pFans0 = (Cba_ObjFinNum(p, i) > 0 && Cba_FonIsReal(iFon0)) ? Vec_IntEntryP( vBits, Cba_FonCopy(p, iFon0) ) : NULL; pFans1 = (Cba_ObjFinNum(p, i) > 1 && Cba_FonIsReal(iFon1)) ? Vec_IntEntryP( vBits, Cba_FonCopy(p, iFon1) ) : NULL; pFans2 = (Cba_ObjFinNum(p, i) > 2 && Cba_FonIsReal(iFon2)) ? Vec_IntEntryP( vBits, Cba_FonCopy(p, iFon2) ) : NULL; fSigned01 = (Cba_ObjFinNum(p, i) > 1 && Cba_FonSigned(p, iFon0) && Cba_FonSigned(p, iFon1)); nAndPrev = Gia_ManAndNum(pNew); Vec_IntClear( vRes ); if ( Type == CBA_BOX_SLICE ) { int Left = Cba_ObjLeft( p, i ); int Right = Cba_ObjRight( p, i ); int Left0 = Cba_FonLeft( p, iFon0 ); int Right0 = Cba_FonRight( p, iFon0 ); if ( Left > Right ) { assert( Left0 > Right0 ); for ( k = Right; k <= Left; k++ ) Vec_IntPush( vRes, pFans0[k - Right0] ); } else { assert( Left < Right && Left0 < Right0 ); for ( k = Right; k >= Left; k-- ) Vec_IntPush( vRes, pFans0[k - Right0] ); } } else if ( Type == CBA_BOX_CONCAT ) { int iFinT, iFonT, nTotal = 0; Cba_ObjForEachFinFon( p, i, iFinT, iFonT, k ) nTotal += Cba_FonRangeSize( p, iFonT ); assert( nRange == nTotal ); Cba_ObjForEachFinFon( p, i, iFinT, iFonT, k ) { nRange0 = Cba_FonRangeSize( p, iFonT ); pFans0 = Cba_FonIsReal(iFonT) ? Vec_IntEntryP( vBits, Cba_FonCopy(p, iFonT) ) : NULL; pFans0 = Cba_VecLoadFanins( p, vTemp0, iFonT, pFans0, nRange0, nRange0, Cba_FonSigned(p, iFonT) ); for ( b = 0; b < nRange0; b++ ) Vec_IntPush( vRes, pFans0[b] ); } } else if ( Type == CBA_BOX_BUF ) { int nRangeMax = Abc_MaxInt( nRange0, nRange ); int * pArg0 = Cba_VecLoadFanins( p, vTemp0, iFon0, pFans0, nRange0, nRangeMax, Cba_FonSigned(p, iFon0) ); for ( k = 0; k < nRange; k++ ) Vec_IntPush( vRes, pArg0[k] ); } else if ( Type >= CBA_BOX_CF && Type <= CBA_BOX_CZ ) { assert( 0 ); //word * pTruth = (word *)Cba_ObjFanins(p, i); //for ( k = 0; k < nRange; k++ ) // Vec_IntPush( vRes, Abc_TtGetBit(pTruth, k) ); } else if ( Type == CBA_BOX_MUX || Type == CBA_BOX_NMUX ) { // It is strange and disturbing that Verilog standard treats these statements differently: // Statement 1: // assign o = i ? b : a; // Statement 2: // always @( i or a or b ) // begin // case ( i ) // 0 : o = a ; // 1 : o = b ; // endcase // end // If a is signed and b is unsigned, Statement 1 does not sign-extend a, while Statement 2 does. // The signedness of o does not matter. // // Below we (somewhat arbitrarily) distinguish these two by assuming that // Statement 1 has three fanins, while Statement 2 has more than three fanins. // int iFinT, iFonT, fSigned = 1; assert( nRange0 >= 1 && Cba_ObjFinNum(p, i) >= 3 ); assert( 1 + (1 << nRange0) == Cba_ObjFinNum(p, i) ); Cba_ObjForEachFinFon( p, i, iFinT, iFonT, k ) if ( k > 0 ) fSigned &= Cba_FonSigned(p, iFonT); for ( b = 0; b < nRange; b++ ) { Vec_IntClear( vTemp0 ); Cba_ObjForEachFinFon( p, i, iFinT, iFonT, k ) if ( k > 0 ) { nRange1 = Cba_FonRangeSize( p, iFonT ); pFans1 = Cba_FonIsReal(iFonT) ? Vec_IntEntryP( vBits, Cba_FonCopy(p, iFonT) ) : NULL; if ( Cba_ObjFinNum(p, i) == 3 ) // Statement 1 Vec_IntPush( vTemp0, k < nRange1 ? pFans1[k] : (fSigned? pFans1[nRange1-1] : 0) ); else // Statement 2 Vec_IntPush( vTemp0, k < nRange1 ? pFans1[k] : (Cba_FonSigned(p, iFonT)? pFans1[nRange1-1] : 0) ); } Vec_IntPush( vRes, Cba_NtkMuxTree_rec(pNew, pFans0, nRange0, vTemp0, 0) ); } } else if ( Type == CBA_BOX_SHIR || Type == CBA_BOX_SHIRA || Type == CBA_BOX_SHIL || Type == CBA_BOX_SHILA ) { int nRangeMax = Abc_MaxInt( nRange, nRange0 ); int * pArg0 = Cba_VecLoadFanins( p, vTemp0, iFon0, pFans0, nRange0, nRangeMax, Cba_FonSigned(p, iFon0) ); if ( Type == CBA_BOX_SHIR || Type == CBA_BOX_SHIRA ) Cba_BlastShiftRight( pNew, pArg0, nRangeMax, pFans1, nRange1, Cba_FonSigned(p, iFon0) && Type == CBA_BOX_SHIRA, vRes ); else Cba_BlastShiftLeft( pNew, pArg0, nRangeMax, pFans1, nRange1, 0, vRes ); Vec_IntShrink( vRes, nRange ); } else if ( Type == CBA_BOX_ROTR ) { assert( nRange0 == nRange ); Cba_BlastRotateRight( pNew, pFans0, nRange0, pFans1, nRange1, vRes ); } else if ( Type == CBA_BOX_ROTL ) { assert( nRange0 == nRange ); Cba_BlastRotateLeft( pNew, pFans0, nRange0, pFans1, nRange1, vRes ); } else if ( Type == CBA_BOX_INV ) { int nRangeMax = Abc_MaxInt( nRange, nRange0 ); int * pArg0 = Cba_VecLoadFanins( p, vTemp0, iFon0, pFans0, nRange0, nRangeMax, Cba_FonSigned(p, iFon0) ); for ( k = 0; k < nRange; k++ ) Vec_IntPush( vRes, Abc_LitNot(pArg0[k]) ); } else if ( Type == CBA_BOX_AND ) { int nRangeMax = Abc_MaxInt( nRange, Abc_MaxInt(nRange0, nRange1) ); int * pArg0 = Cba_VecLoadFanins( p, vTemp0, iFon0, pFans0, nRange0, nRangeMax, fSigned01 ); int * pArg1 = Cba_VecLoadFanins( p, vTemp1, iFon1, pFans1, nRange1, nRangeMax, fSigned01 ); for ( k = 0; k < nRange; k++ ) Vec_IntPush( vRes, Gia_ManHashAnd(pNew, pArg0[k], pArg1[k]) ); } else if ( Type == CBA_BOX_OR ) { int nRangeMax = Abc_MaxInt( nRange, Abc_MaxInt(nRange0, nRange1) ); int * pArg0 = Cba_VecLoadFanins( p, vTemp0, iFon0, pFans0, nRange0, nRangeMax, fSigned01 ); int * pArg1 = Cba_VecLoadFanins( p, vTemp1, iFon1, pFans1, nRange1, nRangeMax, fSigned01 ); for ( k = 0; k < nRange; k++ ) Vec_IntPush( vRes, Gia_ManHashOr(pNew, pArg0[k], pArg1[k]) ); } else if ( Type == CBA_BOX_XOR ) { int nRangeMax = Abc_MaxInt( nRange, Abc_MaxInt(nRange0, nRange1) ); int * pArg0 = Cba_VecLoadFanins( p, vTemp0, iFon0, pFans0, nRange0, nRangeMax, fSigned01 ); int * pArg1 = Cba_VecLoadFanins( p, vTemp1, iFon1, pFans1, nRange1, nRangeMax, fSigned01 ); for ( k = 0; k < nRange; k++ ) Vec_IntPush( vRes, Gia_ManHashXor(pNew, pArg0[k], pArg1[k]) ); } else if ( Type == CBA_BOX_LNOT ) { iLit = Cba_BlastReduction( pNew, pFans0, nRange0, CBA_BOX_ROR ); Vec_IntFill( vRes, 1, Abc_LitNot(iLit) ); for ( k = 1; k < nRange; k++ ) Vec_IntPush( vRes, 0 ); } else if ( Type == CBA_BOX_LAND ) { int iLit0 = Cba_BlastReduction( pNew, pFans0, nRange0, CBA_BOX_ROR ); int iLit1 = Cba_BlastReduction( pNew, pFans1, nRange1, CBA_BOX_ROR ); Vec_IntFill( vRes, 1, Gia_ManHashAnd(pNew, iLit0, iLit1) ); for ( k = 1; k < nRange; k++ ) Vec_IntPush( vRes, 0 ); } else if ( Type == CBA_BOX_LOR ) { int iLit0 = Cba_BlastReduction( pNew, pFans0, nRange0, CBA_BOX_ROR ); int iLit1 = Cba_BlastReduction( pNew, pFans1, nRange1, CBA_BOX_ROR ); Vec_IntFill( vRes, 1, Gia_ManHashOr(pNew, iLit0, iLit1) ); for ( k = 1; k < nRange; k++ ) Vec_IntPush( vRes, 0 ); } else if ( Type == CBA_BOX_LXOR ) { int iLit0 = Cba_BlastReduction( pNew, pFans0, nRange0, CBA_BOX_ROR ); int iLit1 = Cba_BlastReduction( pNew, pFans1, nRange1, CBA_BOX_ROR ); Vec_IntFill( vRes, 1, Gia_ManHashXor(pNew, iLit0, iLit1) ); for ( k = 1; k < nRange; k++ ) Vec_IntPush( vRes, 0 ); } else if ( Type == CBA_BOX_EQU || Type == CBA_BOX_NEQU ) { int iLit = 0, nRangeMax = Abc_MaxInt( nRange0, nRange1 ); int * pArg0 = Cba_VecLoadFanins( p, vTemp0, iFon0, pFans0, nRange0, nRangeMax, fSigned01 ); int * pArg1 = Cba_VecLoadFanins( p, vTemp1, iFon1, pFans1, nRange1, nRangeMax, fSigned01 ); for ( k = 0; k < nRangeMax; k++ ) iLit = Gia_ManHashOr( pNew, iLit, Gia_ManHashXor(pNew, pArg0[k], pArg1[k]) ); Vec_IntFill( vRes, 1, Abc_LitNotCond(iLit, Type == CBA_BOX_EQU) ); for ( k = 1; k < nRange; k++ ) Vec_IntPush( vRes, 0 ); } else if ( Type == CBA_BOX_LTHAN || Type == CBA_BOX_METHAN || Type == CBA_BOX_MTHAN || Type == CBA_BOX_LETHAN ) { int nRangeMax = Abc_MaxInt( nRange0, nRange1 ); int * pArg0 = Cba_VecLoadFanins( p, vTemp0, iFon0, pFans0, nRange0, nRangeMax, fSigned01 ); int * pArg1 = Cba_VecLoadFanins( p, vTemp1, iFon1, pFans1, nRange1, nRangeMax, fSigned01 ); int fSwap = (Type == CBA_BOX_MTHAN || Type == CBA_BOX_LETHAN); int fCompl = (Type == CBA_BOX_METHAN || Type == CBA_BOX_LETHAN); if ( fSwap ) ABC_SWAP( int *, pArg0, pArg1 ); if ( fSigned01 ) iLit = Cba_BlastLessSigned( pNew, pArg0, pArg1, nRangeMax ); else iLit = Cba_BlastLess( pNew, pArg0, pArg1, nRangeMax ); iLit = Abc_LitNotCond( iLit, fCompl ); Vec_IntFill( vRes, 1, iLit ); for ( k = 1; k < nRange; k++ ) Vec_IntPush( vRes, 0 ); } else if ( Type == CBA_BOX_RAND || Type == CBA_BOX_ROR || Type == CBA_BOX_RXOR ) { Vec_IntPush( vRes, Cba_BlastReduction( pNew, pFans0, nRange0, Type ) ); for ( k = 1; k < nRange; k++ ) Vec_IntPush( vRes, 0 ); } else if ( Type == CBA_BOX_ADD ) { int nRangeMax = Abc_MaxInt( nRange, Abc_MaxInt(nRange1, nRange2) ); int * pArg0 = Cba_VecLoadFanins( p, vTemp0, iFon0, pFans0, 1, 1, 0 ); int * pArg1 = Cba_VecLoadFanins( p, vRes, iFon1, pFans1, nRange1, nRangeMax, fSigned01 ); int * pArg2 = Cba_VecLoadFanins( p, vTemp1, iFon2, pFans2, nRange2, nRangeMax, fSigned01 ); int Carry = Cba_BlastAdder( pNew, pArg0[0], pArg1, pArg2, nRange ); // result is in pArg1 (vRes) assert( nRange0 == 1 ); Vec_IntShrink( vRes, nRange ); Vec_IntPush( vRes, Carry ); } else if ( Type == CBA_BOX_SUB ) { int nRangeMax = Abc_MaxInt( nRange, Abc_MaxInt(nRange0, nRange1) ); int * pArg0 = Cba_VecLoadFanins( p, vRes, iFon0, pFans0, nRange0, nRangeMax, fSigned01 ); int * pArg1 = Cba_VecLoadFanins( p, vTemp1, iFon1, pFans1, nRange1, nRangeMax, fSigned01 ); Cba_BlastSubtract( pNew, pArg0, pArg1, nRange ); // result is in pFan0 (vRes) Vec_IntShrink( vRes, nRange ); } else if ( Type == CBA_BOX_MUL ) { if ( fUseOldMultiplierBlasting ) { int nRangeMax = Abc_MaxInt( nRange, Abc_MaxInt(nRange0, nRange1) ); int * pArg0 = Cba_VecLoadFanins( p, vTemp0, iFon0, pFans0, nRange0, nRangeMax, fSigned01 ); int * pArg1 = Cba_VecLoadFanins( p, vTemp1, iFon1, pFans1, nRange1, nRangeMax, fSigned01 ); Cba_BlastMultiplier2( pNew, pArg0, pArg1, nRange, vTemp2, vRes ); Vec_IntShrink( vRes, nRange ); } else { int nRangeMax = Abc_MaxInt(nRange0, nRange1); int * pArg0 = Cba_VecLoadFanins( p, vTemp0, iFon0, pFans0, nRange0, nRangeMax, fSigned01 ); int * pArg1 = Cba_VecLoadFanins( p, vTemp1, iFon1, pFans1, nRange1, nRangeMax, fSigned01 ); Cba_BlastMultiplier( pNew, pArg0, pArg1, nRangeMax, nRangeMax, vTemp2, vRes, fSigned01 ); if ( nRange > nRangeMax + nRangeMax ) Vec_IntFillExtra( vRes, nRange, fSigned01 ? Vec_IntEntryLast(vRes) : 0 ); else Vec_IntShrink( vRes, nRange ); assert( Vec_IntSize(vRes) == nRange ); } } else if ( Type == CBA_BOX_DIV || Type == CBA_BOX_MOD ) { int nRangeMax = Abc_MaxInt( nRange, Abc_MaxInt(nRange0, nRange1) ); int * pArg0 = Cba_VecLoadFanins( p, vTemp0, iFon0, pFans0, nRange0, nRangeMax, fSigned01 ); int * pArg1 = Cba_VecLoadFanins( p, vTemp1, iFon1, pFans1, nRange1, nRangeMax, fSigned01 ); if ( fSigned01 ) Cba_BlastDividerSigned( pNew, pArg0, nRangeMax, pArg1, nRangeMax, Type == CBA_BOX_DIV, vRes ); else Cba_BlastDivider( pNew, pArg0, nRangeMax, pArg1, nRangeMax, Type == CBA_BOX_DIV, vRes ); Vec_IntShrink( vRes, nRange ); if ( Type == CBA_BOX_DIV ) Cba_BlastZeroCondition( pNew, pFans1, nRange1, vRes ); } else if ( Type == CBA_BOX_MIN ) { int nRangeMax = Abc_MaxInt( nRange0, nRange ); int * pArg0 = Cba_VecLoadFanins( p, vTemp0, iFon0, pFans0, nRange0, nRangeMax, Cba_FonSigned(p, iFon0) ); Cba_BlastMinus( pNew, pArg0, nRangeMax, vRes ); Vec_IntShrink( vRes, nRange ); } else if ( Type == CBA_BOX_POW ) { int nRangeMax = Abc_MaxInt(nRange0, nRange); int * pArg0 = Cba_VecLoadFanins( p, vTemp0, iFon0, pFans0, nRange0, nRangeMax, Cba_FonSigned(p, iFon0) ); int * pArg1 = Cba_VecLoadFanins( p, vTemp1, iFon1, pFans1, nRange1, nRange1, Cba_FonSigned(p, iFon1) ); Cba_BlastPower( pNew, pArg0, nRangeMax, pArg1, nRange1, vTemp2, vRes ); Vec_IntShrink( vRes, nRange ); } else if ( Type == CBA_BOX_SQRT ) { int * pArg0 = Cba_VecLoadFanins( p, vTemp0, iFon0, pFans0, nRange0, nRange0 + (nRange0 & 1), 0 ); nRange0 += (nRange0 & 1); Cba_BlastSqrt( pNew, pArg0, nRange0, vTemp2, vRes ); if ( nRange > Vec_IntSize(vRes) ) Vec_IntFillExtra( vRes, nRange, 0 ); else Vec_IntShrink( vRes, nRange ); } else if ( Type == CBA_BOX_TABLE ) { assert( 0 ); //Cba_BlastTable( pNew, Cba_ObjTable(p, p, i), pFans0, nRange0, nRange, vRes ); } else assert( 0 ); Vec_IntAppend( vBits, vRes ); p->pDesign->nAnds[Type] += Gia_ManAndNum(pNew) - nAndPrev; } assert( nBits == Vec_IntSize(vBits) ); p->pDesign->nAnds[0] = Gia_ManAndNum(pNew); // create COs Cba_NtkForEachPo( p, iObj, i ) { Cba_ObjForEachFinFon( p, iObj, iFin, iFon, k ) { nRange = Cba_FonRangeSize( p, iFon ); pFans0 = Cba_FonIsReal(iFon) ? Vec_IntEntryP( vBits, Cba_FonCopy(p, iFon) ) : NULL; pFans0 = Cba_VecLoadFanins( p, vTemp0, iFon, pFans0, nRange, nRange, Cba_FonSigned(p, iFon) ); for ( b = 0; b < nRange; b++ ) Gia_ManAppendCo( pNew, pFans0[b] ); } } Cba_NtkForEachBoxSeq( p, iObj, i ) { if ( fSeq ) { assert( Cba_ObjType(p, iObj) == CBA_BOX_DFFCPL ); iFon0 = Cba_ObjFinFon( p, iObj, 0 ); iFon1 = Cba_ObjFinFon( p, iObj, 1 ); nRange0 = Cba_FonRangeSize( p, iFon0 ); nRange1 = Cba_FonRangeSize( p, iFon1 ); assert( nRange0 == nRange1 ); Cba_ObjForEachFinFon( p, iObj, iFin, iFon, k ) { nRange = Cba_FonRangeSize( p, iFon ); pFans0 = Cba_FonIsReal(iFon) ? Vec_IntEntryP( vBits, Cba_FonCopy(p, iFon) ) : NULL; pFans0 = Cba_VecLoadFanins( p, vTemp0, iFon, pFans0, nRange0, nRange0, Cba_FonSigned(p, iFon) ); if ( k == 0 ) { for ( b = 0; b < nRange; b++ ) Gia_ManAppendCo( pNew, pFans0[b] ); } else if ( k == 1 ) { for ( b = 0; b < nRange; b++ ) if ( pFans0[b] == 0 ) Vec_StrPush( vInit, '0' ); else if ( pFans0[b] == 1 ) Vec_StrPush( vInit, '1' ); else Vec_StrPush( vInit, 'x' ); } else break; } } else // combinational { Cba_ObjForEachFinFon( p, iObj, iFin, iFon, k ) { nRange = Cba_FonRangeSize( p, iFon ); pFans0 = Cba_FonIsReal(iFon) ? Vec_IntEntryP( vBits, Cba_FonCopy(p, iFon) ) : NULL; pFans0 = Cba_VecLoadFanins( p, vTemp0, iFon, pFans0, nRange, nRange, Cba_FonSigned(p, iFon) ); for ( b = 0; b < nRange; b++ ) Gia_ManAppendCo( pNew, pFans0[b] ); } } } Vec_IntFree( vTemp0 ); Vec_IntFree( vTemp1 ); Vec_IntFree( vTemp2 ); Vec_IntFree( vRes ); // finalize AIG pNew = Gia_ManCleanup( pTemp = pNew ); Gia_ManDupRemapLiterals( vBits, pTemp ); Gia_ManStop( pTemp ); // transform AIG with init state if ( fSeq ) { Gia_ManSetRegNum( pNew, Vec_StrSize(vInit) ); Vec_StrPush( vInit, '\0' ); pNew = Gia_ManDupZeroUndc( pTemp = pNew, Vec_StrArray(vInit), 0, 0, 1 ); Gia_ManDupRemapLiterals( vBits, pTemp ); Gia_ManStop( pTemp ); Vec_StrFreeP( &vInit ); } //Vec_IntErase( vBits ); //Vec_IntErase( &p->vCopies ); return pNew; } /**Function************************************************************* Synopsis [] Description [] SideEffects [] SeeAlso [] ***********************************************************************/ Gia_Man_t * Cba_ManBlast( Cba_Man_t * p, int fBarBufs, int fSeq, int fVerbose ) { return Cba_NtkBlast( Cba_ManRoot(p), fSeq ); } /**Function************************************************************* Synopsis [] Description [] SideEffects [] SeeAlso [] ***********************************************************************/ Cba_Man_t * Cba_ManInsertGia( Cba_Man_t * p, Gia_Man_t * pGia ) { return NULL; } Cba_Man_t * Cba_ManInsertAbc( Cba_Man_t * p, void * pAbc ) { Abc_Ntk_t * pNtk = (Abc_Ntk_t *)pAbc; return (Cba_Man_t *)pNtk; } //////////////////////////////////////////////////////////////////////// /// END OF FILE /// //////////////////////////////////////////////////////////////////////// ABC_NAMESPACE_IMPL_END