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Added switch -z to command 'removepo' to enable removing const1 outputs.

This commit is contained in:
Alan Mishchenko 2012-02-27 17:50:48 -08:00
parent bc85e5121d
commit 0b1cfe886e
2 changed files with 11 additions and 6 deletions
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4
src/base/abc/abcNtk.c
View File

@ -1607,10 +1607,10 @@ void Abc_NtkSwapOneOutput( Abc_Ntk_t * pNtk, int iOutput )
SeeAlso []
***********************************************************************/
void Abc_NtkRemovePo( Abc_Ntk_t * pNtk, int iOutput )
void Abc_NtkRemovePo( Abc_Ntk_t * pNtk, int iOutput, int fRemoveConst0 )
{
Abc_Obj_t * pObj = Abc_NtkPo(pNtk, iOutput);
if ( Abc_ObjFanin0(pObj) == Abc_AigConst1(pNtk) && Abc_ObjFaninC0(pObj) )
if ( Abc_ObjFanin0(pObj) == Abc_AigConst1(pNtk) && Abc_ObjFaninC0(pObj) == fRemoveConst0 )
Abc_NtkDeleteObj( pObj );
}

13
src/base/abci/abc.c
View File

@ -5997,11 +5997,12 @@ int Abc_CommandRemovePo( Abc_Frame_t * pAbc, int argc, char ** argv )
{
Abc_Ntk_t * pNtk = Abc_FrameReadNtk(pAbc);//, * pNtkRes = NULL;
int c, iOutput = -1;
extern void Abc_NtkRemovePo( Abc_Ntk_t * pNtk, int iOutput );
int fRemoveConst0 = 1;
extern void Abc_NtkRemovePo( Abc_Ntk_t * pNtk, int iOutput, int fRemoveConst0 );
// set defaults
Extra_UtilGetoptReset();
while ( ( c = Extra_UtilGetopt( argc, argv, "Nh" ) ) != EOF )
while ( ( c = Extra_UtilGetopt( argc, argv, "Nzh" ) ) != EOF )
{
switch ( c )
{
@ -6016,6 +6017,9 @@ int Abc_CommandRemovePo( Abc_Frame_t * pAbc, int argc, char ** argv )
if ( iOutput < 0 )
goto usage;
break;
case 'z':
fRemoveConst0 ^= 1;
break;
default:
goto usage;
}
@ -6047,13 +6051,14 @@ int Abc_CommandRemovePo( Abc_Frame_t * pAbc, int argc, char ** argv )
// pNtkRes = Abc_NtkDup( pNtk );
// Abc_NtkRemovePo( pNtkRes, iOutput );
// Abc_FrameReplaceCurrentNetwork( pAbc, pNtkRes );
Abc_NtkRemovePo( pNtk, iOutput );
Abc_NtkRemovePo( pNtk, iOutput, fRemoveConst0 );
return 0;
usage:
Abc_Print( -2, "usage: removepo [-N <num>] [-h]\n" );
Abc_Print( -2, "usage: removepo [-N <num>] [-zh]\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-z : toggle removing const1 instead of const0 [default = %s]\n", fRemoveConst0? "const0": "const1" );
Abc_Print( -2, "\t-h : print the command usage\n");
return 1;
}