diff options
| -rw-r--r-- | src/base/abc/abcNtk.c | 18 | ||||
| -rw-r--r-- | src/base/abci/abc.c | 77 |
2 files changed, 95 insertions, 0 deletions
diff --git a/src/base/abc/abcNtk.c b/src/base/abc/abcNtk.c index 1b59a295..0caa4f1f 100644 --- a/src/base/abc/abcNtk.c +++ b/src/base/abc/abcNtk.c @@ -1514,6 +1514,24 @@ void Abc_NtkSwapOneOutput( Abc_Ntk_t * pNtk, int iOutput ) assert( Abc_ObjChild0(pObj2) == pChild1Old ); } +/**Function************************************************************* + + Synopsis [] + + Description [] + + SideEffects [] + + SeeAlso [] + +***********************************************************************/ +void Abc_NtkRemovePo( Abc_Ntk_t * pNtk, int iOutput ) +{ + Abc_Obj_t * pObj = Abc_NtkPo(pNtk, iOutput); + if ( Abc_ObjFanin0(pObj) == Abc_AigConst1(pNtk) && Abc_ObjFaninC0(pObj) ) + Abc_NtkDeleteObj( pObj ); +} + //////////////////////////////////////////////////////////////////////// /// END OF FILE /// diff --git a/src/base/abci/abc.c b/src/base/abci/abc.c index 15d29df2..41aea7b1 100644 --- a/src/base/abci/abc.c +++ b/src/base/abci/abc.c @@ -130,6 +130,7 @@ static int Abc_CommandOrPos ( Abc_Frame_t * pAbc, int argc, cha static int Abc_CommandAndPos ( Abc_Frame_t * pAbc, int argc, char ** argv ); static int Abc_CommandZeroPo ( Abc_Frame_t * pAbc, int argc, char ** argv ); static int Abc_CommandSwapPos ( Abc_Frame_t * pAbc, int argc, char ** argv ); +static int Abc_CommandRemovePo ( Abc_Frame_t * pAbc, int argc, char ** argv ); static int Abc_CommandAddPi ( Abc_Frame_t * pAbc, int argc, char ** argv ); static int Abc_CommandAppend ( Abc_Frame_t * pAbc, int argc, char ** argv ); static int Abc_CommandFrames ( Abc_Frame_t * pAbc, int argc, char ** argv ); @@ -550,6 +551,7 @@ void Abc_Init( Abc_Frame_t * pAbc ) Cmd_CommandAdd( pAbc, "Various", "andpos", Abc_CommandAndPos, 1 ); Cmd_CommandAdd( pAbc, "Various", "zeropo", Abc_CommandZeroPo, 1 ); Cmd_CommandAdd( pAbc, "Various", "swappos", Abc_CommandSwapPos, 1 ); + Cmd_CommandAdd( pAbc, "Various", "removepo", Abc_CommandRemovePo, 1 ); Cmd_CommandAdd( pAbc, "Various", "addpi", Abc_CommandAddPi, 1 ); Cmd_CommandAdd( pAbc, "Various", "append", Abc_CommandAppend, 1 ); Cmd_CommandAdd( pAbc, "Various", "frames", Abc_CommandFrames, 1 ); @@ -5883,6 +5885,81 @@ usage: SeeAlso [] ***********************************************************************/ +int Abc_CommandRemovePo( Abc_Frame_t * pAbc, int argc, char ** argv ) +{ + Abc_Ntk_t * pNtk = Abc_FrameReadNtk(pAbc), * pNtkRes; + int c, iOutput = -1; + extern void Abc_NtkRemovePo( Abc_Ntk_t * pNtk, int iOutput ); + + // set defaults + Extra_UtilGetoptReset(); + while ( ( c = Extra_UtilGetopt( argc, argv, "Nh" ) ) != EOF ) + { + switch ( c ) + { + case 'N': + if ( globalUtilOptind >= argc ) + { + Abc_Print( -1, "Command line switch \"-N\" should be followed by an integer.\n" ); + goto usage; + } + iOutput = atoi(argv[globalUtilOptind]); + globalUtilOptind++; + if ( iOutput < 0 ) + goto usage; + break; + default: + goto usage; + } + } + + if ( pNtk == NULL ) + { + Abc_Print( -1, "Empty network.\n" ); + return 1; + } + + if ( !Abc_NtkIsStrash(pNtk) ) + { + Abc_Print( -1, "The network is not strashed.\n" ); + return 1; + } + if ( iOutput < 0 ) + { + Abc_Print( -1, "The output index is not specified.\n" ); + return 1; + } + if ( iOutput >= Abc_NtkPoNum(pNtk) ) + { + Abc_Print( -1, "The output index is larger than the allowed POs.\n" ); + return 1; + } + + // get the new network + pNtkRes = Abc_NtkDup( pNtk ); + Abc_NtkRemovePo( pNtkRes, iOutput ); + Abc_FrameReplaceCurrentNetwork( pAbc, pNtkRes ); + return 0; + +usage: + Abc_Print( -2, "usage: removepo [-N <num>] [-h]\n" ); + Abc_Print( -2, "\t remove PO with number <num> if it is const0\n" ); + Abc_Print( -2, "\t-N <num> : the zero-based index of the PO to remove [default = %d]\n", iOutput ); + Abc_Print( -2, "\t-h : print the command usage\n"); + return 1; +} + +/**Function************************************************************* + + Synopsis [] + + Description [] + + SideEffects [] + + SeeAlso [] + +***********************************************************************/ int Abc_CommandAddPi( Abc_Frame_t * pAbc, int argc, char ** argv ) { Abc_Ntk_t * pNtk = Abc_FrameReadNtk(pAbc), * pNtkRes; |