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/**CFile****************************************************************
FileName [ifTune.c]
SystemName [ABC: Logic synthesis and verification system.]
PackageName [FPGA mapping based on priority cuts.]
Synopsis [Library tuning.]
Author [Alan Mishchenko]
Affiliation [UC Berkeley]
Date [Ver. 1.0. Started - November 21, 2006.]
Revision [$Id: ifTune.c,v 1.00 2006/11/21 00:00:00 alanmi Exp $]
***********************************************************************/
#include "if.h"
#include "sat/bsat/satSolver.h"
ABC_NAMESPACE_IMPL_START
////////////////////////////////////////////////////////////////////////
/// DECLARATIONS ///
////////////////////////////////////////////////////////////////////////
// network types
typedef enum {
IF_DSD_NONE = 0, // 0: unknown
IF_DSD_CONST0, // 1: constant
IF_DSD_VAR, // 2: variable
IF_DSD_AND, // 3: AND
IF_DSD_XOR, // 4: XOR
IF_DSD_MUX, // 5: MUX
IF_DSD_PRIME // 6: PRIME
} If_DsdType_t;
////////////////////////////////////////////////////////////////////////
/// FUNCTION DEFINITIONS ///
////////////////////////////////////////////////////////////////////////
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
int If_ManStrCheck( char * pStr, int * pnVars, int * pnObjs )
{
int i, Marks[32] = {0}, MaxVar = 0, MaxDef = 0, RetValue = 1;
for ( i = 0; pStr[i]; i++ )
{
if ( pStr[i] == '=' || pStr[i] == ';' ||
pStr[i] == '(' || pStr[i] == ')' ||
pStr[i] == '[' || pStr[i] == ']' ||
pStr[i] == '<' || pStr[i] == '>' ||
pStr[i] == '{' || pStr[i] == '}' )
continue;
if ( pStr[i] >= 'a' && pStr[i] <= 'z' )
{
if ( pStr[i+1] == '=' )
Marks[pStr[i] - 'a'] = 2, MaxDef = 1 + Abc_MaxInt(MaxDef, pStr[i] - 'a');
else
Marks[pStr[i] - 'a'] = 1, MaxVar = 1 + Abc_MaxInt(MaxVar, pStr[i] - 'a');
continue;
}
printf( "String \"%s\" contains unrecognized symbol (%c).\n", pStr, pStr[i] );
RetValue = 0;
}
for ( i = 0; i < MaxDef; i++ )
if ( Marks[i] == 0 )
printf( "String \"%s\" has no symbol (%c).\n", pStr, 'a' + Marks[i] ), RetValue = 0;
for ( i = 0; i < MaxVar; i++ )
if ( Marks[i] == 2 )
printf( "String \"%s\" has definition of input variable (%c).\n", pStr, 'a' + Marks[i] ), RetValue = 0;
for ( i = MaxVar; i < MaxDef; i++ )
if ( Marks[i] == 1 )
printf( "String \"%s\" has no definition for internal variable (%c).\n", pStr, 'a' + Marks[i] ), RetValue = 0;
*pnVars = RetValue ? MaxVar : 0;
*pnObjs = RetValue ? MaxDef : 0;
return RetValue;
}
int If_ManStrParse( char * pStr, int nVars, int nObjs, int * pTypes, int * pnFans, int ppFans[][6] )
{
int i, k, n, f;
char Next = 0;
assert( nVars < nObjs );
for ( i = nVars; i < nObjs; i++ )
{
for ( k = 0; pStr[k]; k++ )
if ( pStr[k] == 'a' + i && pStr[k+1] == '=' )
break;
assert( pStr[k] );
if ( pStr[k+2] == '(' )
pTypes[i] = IF_DSD_AND, Next = ')';
else if ( pStr[k+2] == '[' )
pTypes[i] = IF_DSD_XOR, Next = ']';
else if ( pStr[k+2] == '<' )
pTypes[i] = IF_DSD_MUX, Next = '>';
else if ( pStr[k+2] == '{' )
pTypes[i] = IF_DSD_PRIME, Next = '}';
else assert( 0 );
for ( n = k + 3; pStr[n]; n++ )
if ( pStr[n] == Next )
break;
assert( pStr[k] );
pnFans[i] = n - k - 3;
assert( pnFans[i] > 0 && pnFans[i] <= 6 );
for ( f = 0; f < pnFans[i]; f++ )
{
ppFans[i][f] = pStr[k + 3 + f] - 'a';
if ( ppFans[i][f] < 0 || ppFans[i][f] >= nObjs )
printf( "Error!\n" );
}
}
return 1;
}
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
sat_solver * If_ManSatBuild( char * pStr )
{
int nVars, nObjs;
int pTypes[32] = {0};
int pnFans[32] = {0};
int ppFans[32][6] = {{0}};
sat_solver * pSat = NULL;
if ( !If_ManStrCheck(pStr, &nVars, &nObjs) )
return NULL;
if ( !If_ManStrParse(pStr, nVars, nObjs, pTypes, pnFans, ppFans) )
return NULL;
return pSat;
}
/**Function*************************************************************
Synopsis [Test procedure.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void If_ManSatTest()
{
}
////////////////////////////////////////////////////////////////////////
/// END OF FILE ///
////////////////////////////////////////////////////////////////////////
ABC_NAMESPACE_IMPL_END
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