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/**CFile****************************************************************
FileName [abc_.c]
SystemName [ABC: Logic synthesis and verification system.]
PackageName [Network and node package.]
Synopsis []
Author [Alan Mishchenko]
Affiliation [UC Berkeley]
Date [Ver. 1.0. Started - June 20, 2005.]
Revision [$Id: abc_.c,v 1.00 2005/06/20 00:00:00 alanmi Exp $]
***********************************************************************/
#include "abc.h"
////////////////////////////////////////////////////////////////////////
/// DECLARATIONS ///
////////////////////////////////////////////////////////////////////////
void Abc_WriteLayer( FILE * pFile, int nVars, int fSkip1 );
void Abc_WriteComp( FILE * pFile );
void Abc_WriteFullAdder( FILE * pFile );
void Abc_GenAdder( char * pFileName, int nVars );
void Abc_GenSorter( char * pFileName, int nVars );
////////////////////////////////////////////////////////////////////////
/// FUNCTION DEFINITIONS ///
////////////////////////////////////////////////////////////////////////
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Abc_GenAdder( char * pFileName, int nVars )
{
FILE * pFile;
int i;
assert( nVars > 0 );
pFile = fopen( pFileName, "w" );
fprintf( pFile, "# %d-bit ripple-carry adder generated by ABC on %s\n", nVars, Extra_TimeStamp() );
fprintf( pFile, ".model Adder%02d\n", nVars );
fprintf( pFile, ".inputs" );
for ( i = 0; i < nVars; i++ )
fprintf( pFile, " a%02d", i );
for ( i = 0; i < nVars; i++ )
fprintf( pFile, " b%02d", i );
fprintf( pFile, "\n" );
fprintf( pFile, ".outputs" );
for ( i = 0; i <= nVars; i++ )
fprintf( pFile, " y%02d", i );
fprintf( pFile, "\n" );
fprintf( pFile, ".names c\n" );
if ( nVars == 1 )
fprintf( pFile, ".subckt FA a=a00 b=b00 cin=c s=y00 cout=y01\n" );
else
{
fprintf( pFile, ".subckt FA a=a00 b=b00 cin=c s=y00 cout=%02d\n", 0 );
for ( i = 1; i < nVars-1; i++ )
fprintf( pFile, ".subckt FA a=a%02d b=b%02d cin=%02d s=y%02d cout=%02d\n", i, i, i-1, i, i );
fprintf( pFile, ".subckt FA a=a%02d b=b%02d cin=%02d s=y%02d cout=y%02d\n", i, i, i-1, i, i+1 );
}
fprintf( pFile, ".end\n" );
fprintf( pFile, "\n" );
Abc_WriteFullAdder( pFile );
fclose( pFile );
}
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Abc_GenSorter( char * pFileName, int nVars )
{
FILE * pFile;
int i, k, Counter, nDigits;
assert( nVars > 1 );
pFile = fopen( pFileName, "w" );
fprintf( pFile, "# %d-bit sorter generated by ABC on %s\n", nVars, Extra_TimeStamp() );
fprintf( pFile, ".model Sorter%02d\n", nVars );
fprintf( pFile, ".inputs" );
for ( i = 0; i < nVars; i++ )
fprintf( pFile, " x%02d", i );
fprintf( pFile, "\n" );
fprintf( pFile, ".outputs" );
for ( i = 0; i < nVars; i++ )
fprintf( pFile, " y%02d", i );
fprintf( pFile, "\n" );
Counter = 0;
nDigits = Extra_Base10Log( (nVars-2)*nVars );
if ( nVars == 2 )
fprintf( pFile, ".subckt Comp a=x00 b=x01 x=y00 y=y01\n" );
else
{
fprintf( pFile, ".subckt Layer0" );
for ( k = 0; k < nVars; k++ )
fprintf( pFile, " x%02d=x%02d", k, k );
for ( k = 0; k < nVars; k++ )
fprintf( pFile, " y%02d=%0*d", k, nDigits, Counter++ );
fprintf( pFile, "\n" );
Counter -= nVars;
for ( i = 1; i < nVars-2; i++ )
{
fprintf( pFile, ".subckt Layer%d", (i&1) );
for ( k = 0; k < nVars; k++ )
fprintf( pFile, " x%02d=%0*d", k, nDigits, Counter++ );
for ( k = 0; k < nVars; k++ )
fprintf( pFile, " y%02d=%0*d", k, nDigits, Counter++ );
fprintf( pFile, "\n" );
Counter -= nVars;
}
fprintf( pFile, ".subckt Layer%d", (i&1) );
for ( k = 0; k < nVars; k++ )
fprintf( pFile, " x%02d=%0*d", k, nDigits, Counter++ );
for ( k = 0; k < nVars; k++ )
fprintf( pFile, " y%02d=y%02d", k, k );
fprintf( pFile, "\n" );
}
fprintf( pFile, ".end\n" );
fprintf( pFile, "\n" );
Abc_WriteLayer( pFile, nVars, 0 );
Abc_WriteLayer( pFile, nVars, 1 );
Abc_WriteComp( pFile );
fclose( pFile );
}
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Abc_WriteLayer( FILE * pFile, int nVars, int fSkip1 )
{
int i;
fprintf( pFile, ".model Layer%d\n", fSkip1 );
fprintf( pFile, ".inputs" );
for ( i = 0; i < nVars; i++ )
fprintf( pFile, " x%02d", i );
fprintf( pFile, "\n" );
fprintf( pFile, ".outputs" );
for ( i = 0; i < nVars; i++ )
fprintf( pFile, " y%02d", i );
fprintf( pFile, "\n" );
if ( fSkip1 )
{
fprintf( pFile, ".names x00 y00\n" );
fprintf( pFile, "1 1\n" );
i = 1;
}
else
i = 0;
for ( ; i + 1 < nVars; i += 2 )
fprintf( pFile, ".subckt Comp a=x%02d b=x%02d x=y%02d y=y%02d\n", i, i+1, i, i+1 );
if ( i < nVars )
{
fprintf( pFile, ".names x%02d y%02d\n", i, i );
fprintf( pFile, "1 1\n" );
}
fprintf( pFile, ".end\n" );
fprintf( pFile, "\n" );
}
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Abc_WriteComp( FILE * pFile )
{
fprintf( pFile, ".model Comp\n" );
fprintf( pFile, ".inputs a b\n" );
fprintf( pFile, ".outputs x y\n" );
fprintf( pFile, ".names a b x\n" );
fprintf( pFile, "11 1\n" );
fprintf( pFile, ".names a b y\n" );
fprintf( pFile, "1- 1\n" );
fprintf( pFile, "-1 1\n" );
fprintf( pFile, ".end\n" );
fprintf( pFile, "\n" );
}
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Abc_WriteFullAdder( FILE * pFile )
{
fprintf( pFile, ".model FA\n" );
fprintf( pFile, ".inputs a b cin\n" );
fprintf( pFile, ".outputs s cout\n" );
fprintf( pFile, ".names a b k\n" );
fprintf( pFile, "10 1\n" );
fprintf( pFile, "01 1\n" );
fprintf( pFile, ".names k cin s\n" );
fprintf( pFile, "10 1\n" );
fprintf( pFile, "01 1\n" );
fprintf( pFile, ".names a b cin cout\n" );
fprintf( pFile, "11- 1\n" );
fprintf( pFile, "1-1 1\n" );
fprintf( pFile, "-11 1\n" );
fprintf( pFile, ".end\n" );
fprintf( pFile, "\n" );
}
////////////////////////////////////////////////////////////////////////
/// END OF FILE ///
////////////////////////////////////////////////////////////////////////
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