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| author | Alan Mishchenko <alanmi@berkeley.edu> | 2013-07-16 16:06:21 -0700 |
|---|---|---|
| committer | Alan Mishchenko <alanmi@berkeley.edu> | 2013-07-16 16:06:21 -0700 |
| commit | 5f97612951b9547a23c64e2a669cd459dae0beda (patch) | |
| tree | 9552d966c6e461584fbb599ef5e17fecf2545c9b /src/aig/hop | |
| parent | e731d3b1f4fa1a1be528c5e1868409c1b19aedf7 (diff) | |
| download | abc-5f97612951b9547a23c64e2a669cd459dae0beda.tar.gz abc-5f97612951b9547a23c64e2a669cd459dae0beda.tar.bz2 abc-5f97612951b9547a23c64e2a669cd459dae0beda.zip | |
Imporvements to 'eliminate'.
Diffstat (limited to 'src/aig/hop')
| -rw-r--r-- | src/aig/hop/hop.h | 3 | ||||
| -rw-r--r-- | src/aig/hop/hopTruth.c | 47 |
2 files changed, 49 insertions, 1 deletions
diff --git a/src/aig/hop/hop.h b/src/aig/hop/hop.h index 7d9be165..e63ea3e0 100644 --- a/src/aig/hop/hop.h +++ b/src/aig/hop/hop.h @@ -326,7 +326,8 @@ extern void Hop_TableDelete( Hop_Man_t * p, Hop_Obj_t * pObj ); extern int Hop_TableCountEntries( Hop_Man_t * p ); extern void Hop_TableProfile( Hop_Man_t * p ); /*=== hopTruth.c ========================================================*/ -unsigned * Hop_ManConvertAigToTruth( Hop_Man_t * p, Hop_Obj_t * pRoot, int nVars, Vec_Int_t * vTruth, int fMsbFirst ); +extern unsigned * Hop_ManConvertAigToTruth( Hop_Man_t * p, Hop_Obj_t * pRoot, int nVars, Vec_Int_t * vTruth, int fMsbFirst ); +extern word Hop_ManComputeTruth6( Hop_Man_t * p, Hop_Obj_t * pObj, int nVars ); /*=== hopUtil.c =========================================================*/ extern void Hop_ManIncrementTravId( Hop_Man_t * p ); extern void Hop_ManCleanData( Hop_Man_t * p ); diff --git a/src/aig/hop/hopTruth.c b/src/aig/hop/hopTruth.c index 0b674225..bbb0e052 100644 --- a/src/aig/hop/hopTruth.c +++ b/src/aig/hop/hopTruth.c @@ -218,6 +218,53 @@ unsigned * Hop_ManConvertAigToTruth( Hop_Man_t * p, Hop_Obj_t * pRoot, int nVars return pTruth; } + +/**Function************************************************************* + + Synopsis [Compute truth table.] + + Description [] + + SideEffects [] + + SeeAlso [] + +***********************************************************************/ +static word Truth[8] = +{ + ABC_CONST(0xAAAAAAAAAAAAAAAA), + ABC_CONST(0xCCCCCCCCCCCCCCCC), + ABC_CONST(0xF0F0F0F0F0F0F0F0), + ABC_CONST(0xFF00FF00FF00FF00), + ABC_CONST(0xFFFF0000FFFF0000), + ABC_CONST(0xFFFFFFFF00000000), + ABC_CONST(0x0000000000000000), + ABC_CONST(0xFFFFFFFFFFFFFFFF) +}; +word Hop_ManComputeTruth6_rec( Hop_Man_t * p, Hop_Obj_t * pObj ) +{ + word Truth0, Truth1; + if ( Hop_ObjIsPi(pObj) ) + return Truth[pObj->iData]; + assert( Hop_ObjIsNode(pObj) ); + Truth0 = Hop_ManComputeTruth6_rec( p, Hop_ObjFanin0(pObj) ); + Truth1 = Hop_ManComputeTruth6_rec( p, Hop_ObjFanin1(pObj) ); + Truth0 = Hop_ObjFaninC0(pObj) ? ~Truth0 : Truth0; + Truth1 = Hop_ObjFaninC1(pObj) ? ~Truth1 : Truth1; + return Truth0 & Truth1; +} +word Hop_ManComputeTruth6( Hop_Man_t * p, Hop_Obj_t * pObj, int nVars ) +{ + word Truth; + int i; + if ( Hop_ObjIsConst1( Hop_Regular(pObj) ) ) + return Hop_IsComplement(pObj) ? 0 : ~(word)0; + for ( i = 0; i < nVars; i++ ) + Hop_ManPi( p, i )->iData = i; + Truth = Hop_ManComputeTruth6_rec( p, Hop_Regular(pObj) ); + return Hop_IsComplement(pObj) ? ~Truth : Truth; +} + //////////////////////////////////////////////////////////////////////// /// END OF FILE /// //////////////////////////////////////////////////////////////////////// |