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/**CFile****************************************************************
FileName [giaGig.c]
SystemName [ABC: Logic synthesis and verification system.]
PackageName [Scalable AIG package.]
Synopsis [Parser for Gate-Inverter Graph by Niklas Een.]
Author [Alan Mishchenko]
Affiliation [UC Berkeley]
Date [Ver. 1.0. Started - June 20, 2005.]
Revision [$Id: giaGig.c,v 1.00 2005/06/20 00:00:00 alanmi Exp $]
***********************************************************************/
#include "gia.h"
#include "misc/extra/extra.h"
#include "misc/util/utilTruth.h"
ABC_NAMESPACE_IMPL_START
////////////////////////////////////////////////////////////////////////
/// DECLARATIONS ///
////////////////////////////////////////////////////////////////////////
enum {
GIG_NONE = 0,
GIG_RESET = 1,
GIG_PI = 2,
GIG_PO = 3,
GIG_SEQ = 4,
GIG_LUT = 5,
GIG_DELAY = 6,
GIG_BOX = 7,
GIG_SEL = 8,
GIG_BAR = 9,
GIG_UNUSED = 10
};
static char * s_GigNames[GIG_UNUSED] =
{
"NONE", // GIG_NONE = 0
"Reset", // GIG_RESET = 1
"PI", // GIG_PI = 2
"PO", // GIG_PO = 3
"Seq", // GIG_SEQ = 4
"Lut4", // GIG_LUT = 5
"Delay", // GIG_DELAY = 6
"Box", // GIG_BOX = 7
"Sel", // GIG_SEL = 8
"Bar" // GIG_BAR = 9
};
////////////////////////////////////////////////////////////////////////
/// FUNCTION DEFINITIONS ///
////////////////////////////////////////////////////////////////////////
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
Gia_Man_t * Gia_ManBuildGig( Vec_Int_t * vObjs, Vec_Int_t * vStore )
{
int i, Type, nObjs[GIG_UNUSED] = {0};
printf( "Parsed %d objects and %d tokens.\n", Vec_IntSize(vObjs), Vec_IntSize(vStore) );
for ( i = 0; i < Vec_IntSize(vObjs); i++ )
{
Type = Vec_IntEntry( vStore, Vec_IntEntry(vObjs,i) + 1 );
nObjs[Type]++;
}
printf( "Statistics: " );
for ( i = 1; i < GIG_UNUSED; i++ )
printf( "%s = %d ", s_GigNames[i], nObjs[i] );
printf( "\n" );
return NULL;
}
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
Gia_Man_t * Gia_ManReadGig( char * pFileName )
{
Gia_Man_t * pNew;
int Type, Offset, fEndOfLine, Digit, nObjs;
char * pChars = " w(-,)]\r\t";
char * pBuffer = Extra_FileReadContents( pFileName );
char * pStart = pBuffer, * pToken;
Vec_Int_t * vObjs, * vStore;
if ( pBuffer == NULL )
printf( "Cannot open input file %s\n", pFileName );
// count objects
for ( nObjs = 0, pToken = pBuffer; *pToken; pToken++ )
nObjs += (int)(*pToken == '\n');
// read objects
vObjs = Vec_IntAlloc( nObjs );
vStore = Vec_IntAlloc( 10*nObjs );
while ( 1 )
{
// read net ID
pToken = strtok( pStart, pChars );
pStart = NULL;
if ( pToken == NULL )
break;
// start new object
Vec_IntPush( vObjs, Vec_IntSize(vStore) );
// save net ID
assert( pToken[0] >= '0' && pToken[0] <= '9' );
Vec_IntPush( vStore, atoi(pToken) );
// read equal
pToken = strtok( pStart, pChars );
assert( pToken[0] == '=' );
// read type
pToken = strtok( pStart, pChars );
fEndOfLine = 0;
if ( pToken[strlen(pToken)-1] == '\n' )
{
pToken[strlen(pToken)-1] = 0;
fEndOfLine = 1;
}
for ( Type = GIG_RESET; Type < GIG_UNUSED; Type++ )
if ( !strcmp(pToken, s_GigNames[Type]) )
break;
assert( Type < GIG_UNUSED );
Vec_IntPush( vStore, Type );
if ( fEndOfLine )
continue;
// read fanins
Offset = Vec_IntSize(vStore);
Vec_IntPush( vStore, 0 );
while ( 1 )
{
pToken = strtok( pStart, pChars );
if ( pToken == NULL || pToken[0] == '\n' || pToken[0] == '[' )
break;
assert( pToken[0] >= '0' && pToken[0] <= '9' );
Vec_IntPush( vStore, atoi(pToken) );
Vec_IntAddToEntry( vStore, Offset, 1 );
}
assert( pToken != NULL );
if ( pToken[0] == '\n' )
continue;
assert( pToken[0] == '[' );
// read attribute
pToken++;
if ( Type == GIG_LUT )
{
assert( strlen(pToken) == 4 );
Digit = Abc_TtReadHexDigit(pToken[0]);
Digit |= Abc_TtReadHexDigit(pToken[1]) << 4;
Digit |= Abc_TtReadHexDigit(pToken[2]) << 8;
Digit |= Abc_TtReadHexDigit(pToken[3]) << 12;
Vec_IntPush( vStore, Digit );
}
else
{
assert( Type == GIG_DELAY );
Vec_IntPush( vStore, atoi(pToken) );
}
// read end of line
pToken = strtok( pStart, pChars );
assert( pToken[0] == '\n' );
}
ABC_FREE( pBuffer );
// create AIG
pNew = Gia_ManBuildGig( vObjs, vStore );
// cleanup
Vec_IntFree( vObjs );
Vec_IntFree( vStore );
return pNew;
}
////////////////////////////////////////////////////////////////////////
/// END OF FILE ///
////////////////////////////////////////////////////////////////////////
ABC_NAMESPACE_IMPL_END
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