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Experiments with SPFD-based decomposition + new K-map print-out.

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This commit is contained in:
Alan Mishchenko
2011-08-20 20:18:31 +07:00
parent b71b5bbc23
commit 21dfaedebd
4 changed files with 659 additions and 16 deletions
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src/base/abc/abc.h
+1
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@@ -766,6 +766,7 @@ extern ABC_DLL void Abc_NtkPrintLevel( FILE * pFile, Abc_Ntk_t * p
extern ABC_DLL void Abc_NodePrintLevel( FILE * pFile, Abc_Obj_t * pNode );
extern ABC_DLL void Abc_NtkPrintSkews( FILE * pFile, Abc_Ntk_t * pNtk, int fPrintAll );
extern ABC_DLL void Abc_ObjPrint( FILE * pFile, Abc_Obj_t * pObj );
extern ABC_DLL void Abc_NtkShow6VarFunc( char * pF0, char * pF1 );
/*=== abcProve.c ==========================================================*/
extern ABC_DLL int Abc_NtkMiterProve( Abc_Ntk_t ** ppNtk, void * pParams );
extern ABC_DLL int Abc_NtkIvyProve( Abc_Ntk_t ** ppNtk, void * pPars );
src/base/abci/abc.c
+5 -1
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@@ -1878,13 +1878,17 @@ int Abc_CommandPrintKMap( Abc_Frame_t * pAbc, int argc, char ** argv )
goto usage;
}
}
if ( argc == globalUtilOptind + 2 )
{
Abc_NtkShow6VarFunc( argv[globalUtilOptind], argv[globalUtilOptind+1] );
return 0;
}
if ( pNtk == NULL )
{
Abc_Print( -1, "Empty network.\n" );
return 1;
}
if ( !Abc_NtkIsLogic(pNtk) )
{
Abc_Print( -1, "Visualization of Karnaugh maps works for logic networks.\n" );
src/base/abci/abcPrint.c
+112
View File
@@ -1384,6 +1384,118 @@ float Abc_NtkMfsTotalGlitching( Abc_Ntk_t * pNtk )
return nSwitches ? 100.0*(nGlitches-nSwitches)/nSwitches : 0.0;
}
/**Function*************************************************************
Synopsis [Prints K-map of 6-var function represented by truth table.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Abc_Show6VarFunc( word F0, word F1 )
{
// order of cells in the Karnaugh map
// int Cells[8] = { 0, 1, 3, 2, 6, 7, 5, 4 };
int Cells[8] = { 0, 4, 6, 2, 3, 7, 5, 1 };
// intermediate variables
int s; // symbol counter
int h; // horizontal coordinate;
int v; // vertical coordinate;
assert( (F0 & F1) == 0 );
// output minterms above
for ( s = 0; s < 4; s++ )
printf( " " );
printf( " " );
for ( h = 0; h < 8; h++ )
{
for ( s = 0; s < 3; s++ )
printf( "%d", ((Cells[h] >> (2-s)) & 1) );
printf( " " );
}
printf( "\n" );
// output horizontal line above
for ( s = 0; s < 4; s++ )
printf( " " );
printf( "+" );
for ( h = 0; h < 8; h++ )
{
for ( s = 0; s < 3; s++ )
printf( "-" );
printf( "+" );
}
printf( "\n" );
// output lines with function values
for ( v = 0; v < 8; v++ )
{
for ( s = 0; s < 3; s++ )
printf( "%d", ((Cells[v] >> (2-s)) & 1) );
printf( " |" );
for ( h = 0; h < 8; h++ )
{
printf( " " );
if ( ((F0 >> ((Cells[v]*8)+Cells[h])) & 1) )
printf( "0" );
else if ( ((F1 >> ((Cells[v]*8)+Cells[h])) & 1) )
printf( "1" );
else
printf( " " );
printf( " |" );
}
printf( "\n" );
// output horizontal line above
for ( s = 0; s < 4; s++ )
printf( " " );
// printf( "%c", v == 7 ? '+' : '|' );
printf( "+" );
for ( h = 0; h < 8; h++ )
{
for ( s = 0; s < 3; s++ )
printf( "-" );
// printf( "%c", v == 7 ? '+' : '|' );
printf( "%c", (v == 7 || h == 7) ? '+' : '|' );
}
printf( "\n" );
}
}
/**Function*************************************************************
Synopsis [Prints K-map of 6-var function represented by truth table.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Abc_NtkShow6VarFunc( char * pF0, char * pF1 )
{
word F0, F1;
if ( strlen(pF0) != 16 )
{
printf( "Wrong length (%d) of 6-var truth table (%s).\n", strlen(pF0), pF0 );
return;
}
if ( strlen(pF1) != 16 )
{
printf( "Wrong length (%d) of 6-var truth table (%s).\n", strlen(pF1), pF1 );
return;
}
Extra_ReadHexadecimal( (unsigned *)&F0, pF0, 6 );
Extra_ReadHexadecimal( (unsigned *)&F1, pF1, 6 );
Abc_Show6VarFunc( F0, F1 );
}
////////////////////////////////////////////////////////////////////////
/// END OF FILE ///
////////////////////////////////////////////////////////////////////////