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Adding command 'symfun' to generate truth table of a symmetric function.

This commit is contained in:
Alan Mishchenko 2019-05-25 20:17:04 -07:00
parent 890ff42cb7
commit 712f46ca23
1 changed files with 75 additions and 0 deletions
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75
src/base/abci/abc.c
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@ -315,6 +315,7 @@ static int Abc_CommandSynch ( Abc_Frame_t * pAbc, int argc, cha
static int Abc_CommandClockGate ( Abc_Frame_t * pAbc, int argc, char ** argv );
static int Abc_CommandExtWin ( Abc_Frame_t * pAbc, int argc, char ** argv );
static int Abc_CommandInsWin ( Abc_Frame_t * pAbc, int argc, char ** argv );
static int Abc_CommandSymFun ( Abc_Frame_t * pAbc, int argc, char ** argv );
static int Abc_CommandPermute ( Abc_Frame_t * pAbc, int argc, char ** argv );
static int Abc_CommandUnpermute ( Abc_Frame_t * pAbc, int argc, char ** argv );
static int Abc_CommandCubeEnum ( Abc_Frame_t * pAbc, int argc, char ** argv );
@ -1010,6 +1011,7 @@ void Abc_Init( Abc_Frame_t * pAbc )
Cmd_CommandAdd( pAbc, "Sequential", "clockgate", Abc_CommandClockGate, 1 );
Cmd_CommandAdd( pAbc, "Sequential", "extwin", Abc_CommandExtWin, 1 );
Cmd_CommandAdd( pAbc, "Sequential", "inswin", Abc_CommandInsWin, 1 );
Cmd_CommandAdd( pAbc, "Sequential", "symfun", Abc_CommandSymFun, 0 );
Cmd_CommandAdd( pAbc, "Sequential", "permute", Abc_CommandPermute, 1 );
Cmd_CommandAdd( pAbc, "Sequential", "unpermute", Abc_CommandUnpermute, 1 );
Cmd_CommandAdd( pAbc, "Sequential", "cubeenum", Abc_CommandCubeEnum, 0 );
@ -22959,6 +22961,79 @@ usage:
}
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
int Abc_CommandSymFun( Abc_Frame_t * pAbc, int argc, char ** argv )
{
Vec_Bit_t * vMints;
char * pStr;
int nVars = 5;
int c, m, k, Count;
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 a file name.\n" );
goto usage;
}
nVars = atoi(argv[globalUtilOptind]);
globalUtilOptind++;
break;
case 'h':
goto usage;
default:
Abc_Print( -2, "Unknown switch.\n");
goto usage;
}
}
if ( argc != globalUtilOptind + 1 )
{
Abc_Print( -1, "Not enough command-line arguments.\n" );
return 1;
}
if ( nVars < 2 || nVars > 9 )
{
Abc_Print( -1, "The number of variables should be between 2 and 9.\n" );
return 1;
}
vMints = Vec_BitStart( 1 << nVars );
pStr = argv[globalUtilOptind];
while ( *pStr )
{
for ( m = 0; m < (1 << nVars); m++ )
{
Count = 0;
for ( k = 0; k < nVars; k++ )
Count += (m >> k) & 1;
if ( *pStr == '0' + Count )
Vec_BitWriteEntry( vMints, m, 1 );
}
pStr++;
}
Extra_PrintHex( stdout, (unsigned *)Vec_BitArray(vMints), nVars ); printf( "\n" );
Vec_BitFree( vMints );
return 0;
usage:
Abc_Print( -2, "usage: symfun [-h] <ones>\n" );
Abc_Print( -2, "\t prints truth table of a symmetric function up to 9 inputs\n" );
Abc_Print( -2, "\t<ones> : the counts of ones in the inputs when the function is one\n" );
Abc_Print( -2, "\t-h : print the command usage\n");
return 1;
}
/**Function*************************************************************
Synopsis []