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| author | Alan Mishchenko <alanmi@berkeley.edu> | 2006-11-11 08:01:00 -0800 |
|---|---|---|
| committer | Alan Mishchenko <alanmi@berkeley.edu> | 2006-11-11 08:01:00 -0800 |
| commit | da5e0785dfb98335bd49a13bf9e86e736fb931be (patch) | |
| tree | 3e88084f64093c8394fddf2d96b522a4df183981 /src/base/abci/abcXsim.c | |
| parent | faf1265bb82f934cc14b6106ccce89e37203efbd (diff) | |
| download | abc-da5e0785dfb98335bd49a13bf9e86e736fb931be.tar.gz abc-da5e0785dfb98335bd49a13bf9e86e736fb931be.tar.bz2 abc-da5e0785dfb98335bd49a13bf9e86e736fb931be.zip | |
Version abc61111
Diffstat (limited to 'src/base/abci/abcXsim.c')
| -rw-r--r-- | src/base/abci/abcXsim.c | 49 |
1 files changed, 46 insertions, 3 deletions
diff --git a/src/base/abci/abcXsim.c b/src/base/abci/abcXsim.c index 1d56ba36..d17ab1dd 100644 --- a/src/base/abci/abcXsim.c +++ b/src/base/abci/abcXsim.c @@ -24,9 +24,9 @@ /// DECLARATIONS /// //////////////////////////////////////////////////////////////////////// -#define XVS0 1 -#define XVS1 2 -#define XVSX 3 +#define XVS0 ABC_INIT_ZERO +#define XVS1 ABC_INIT_ONE +#define XVSX ABC_INIT_DC static inline void Abc_ObjSetXsim( Abc_Obj_t * pObj, int Value ) { pObj->pCopy = (void *)Value; } static inline int Abc_ObjGetXsim( Abc_Obj_t * pObj ) { return (int)pObj->pCopy; } @@ -157,6 +157,49 @@ void Abc_NtkXValueSimulate( Abc_Ntk_t * pNtk, int nFrames, int fInputs, int fVer } } +/**Function************************************************************* + + Synopsis [Cycles the circuit to create a new initial state.] + + Description [Simulates the circuit with random input for the given + number of timeframes to get a better initial state.] + + SideEffects [] + + SeeAlso [] + +***********************************************************************/ +void Abc_NtkCycleInitState( Abc_Ntk_t * pNtk, int nFrames, int fVerbose ) +{ + Abc_Obj_t * pObj; + int i, f; + assert( Abc_NtkIsStrash(pNtk) ); + srand( 0x12341234 ); + // initialize the values + Abc_ObjSetXsim( Abc_AigConst1(pNtk), XVS1 ); + Abc_NtkForEachPi( pNtk, pObj, i ) + Abc_ObjSetXsim( pObj, Abc_XsimRand2() ); + Abc_NtkForEachLatch( pNtk, pObj, i ) + Abc_ObjSetXsim( Abc_ObjFanout0(pObj), Abc_LatchIsInit1(pObj)? XVS1 : XVS0 ); + // simulate for the given number of timeframes + for ( f = 0; f < nFrames; f++ ) + { + Abc_AigForEachAnd( pNtk, pObj, i ) + Abc_ObjSetXsim( pObj, Abc_XsimAnd(Abc_ObjGetXsimFanin0(pObj), Abc_ObjGetXsimFanin1(pObj)) ); + Abc_NtkForEachCo( pNtk, pObj, i ) + Abc_ObjSetXsim( pObj, Abc_ObjGetXsimFanin0(pObj) ); + // assign input values + Abc_NtkForEachPi( pNtk, pObj, i ) + Abc_ObjSetXsim( pObj, Abc_XsimRand2() ); + // transfer the latch values + Abc_NtkForEachLatch( pNtk, pObj, i ) + Abc_ObjSetXsim( Abc_ObjFanout0(pObj), Abc_ObjGetXsim(Abc_ObjFanin0(pObj)) ); + } + // set the final values + Abc_NtkForEachLatch( pNtk, pObj, i ) + pObj->pData = (void *)Abc_ObjGetXsim(Abc_ObjFanout0(pObj)); +} + /////////////////////////////////////////////////////////////////////// /// END OF FILE /// //////////////////////////////////////////////////////////////////////// |