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/**CFile****************************************************************
FileName [plaRead.c]
SystemName [ABC: Logic synthesis and verification system.]
PackageName [SOP manager.]
Synopsis [Scalable SOP transformations.]
Author [Alan Mishchenko]
Affiliation [UC Berkeley]
Date [Ver. 1.0. Started - March 18, 2015.]
Revision [$Id: plaRead.c,v 1.00 2014/09/12 00:00:00 alanmi Exp $]
***********************************************************************/
#include "pla.h"
ABC_NAMESPACE_IMPL_START
////////////////////////////////////////////////////////////////////////
/// DECLARATIONS ///
////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////
/// FUNCTION DEFINITIONS ///
////////////////////////////////////////////////////////////////////////
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
char * Pla_ReadFile( char * pFileName, char ** ppLimit )
{
char * pBuffer;
int nFileSize, RetValue;
FILE * pFile = fopen( pFileName, "rb" );
if ( pFile == NULL )
{
printf( "Cannot open input file.\n" );
return NULL;
}
// get the file size, in bytes
fseek( pFile, 0, SEEK_END );
nFileSize = ftell( pFile );
// move the file current reading position to the beginning
rewind( pFile );
// load the contents of the file into memory
pBuffer = ABC_ALLOC( char, nFileSize + 16 );
pBuffer[0] = '\n';
RetValue = fread( pBuffer+1, nFileSize, 1, pFile );
fclose( pFile );
// terminate the string with '\0'
pBuffer[nFileSize + 1] = '\n';
pBuffer[nFileSize + 2] = '\0';
*ppLimit = pBuffer + nFileSize + 3;
return pBuffer;
}
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Pla_ReadPlaRemoveComments( char * pBuffer, char * pLimit )
{
char * pTemp;
for ( pTemp = pBuffer; pTemp < pLimit; pTemp++ )
if ( *pTemp == '#' )
while ( *pTemp && *pTemp != '\n' )
*pTemp++ = ' ';
}
int Pla_ReadPlaHeader( char * pBuffer, char * pLimit, int * pnIns, int * pnOuts, int * pnCubes, int * pType )
{
char * pTemp;
*pType = PLA_FILE_FD;
*pnIns = *pnOuts = *pnCubes = -1;
for ( pTemp = pBuffer; pTemp < pLimit; pTemp++ )
{
if ( *pTemp != '.' )
continue;
if ( !strncmp(pTemp, ".i ", 3) )
*pnIns = atoi( pTemp + 3 );
else if ( !strncmp(pTemp, ".o ", 3) )
*pnOuts = atoi( pTemp + 3 );
else if ( !strncmp(pTemp, ".p ", 3) )
*pnCubes = atoi( pTemp + 3 );
else if ( !strncmp(pTemp, ".e ", 3) )
break;
else if ( !strncmp(pTemp, ".type ", 6) )
{
char Buffer[100];
*pType = PLA_FILE_NONE;
sscanf( pTemp+6, "%s", Buffer );
if ( !strcmp(Buffer, "f") )
*pType = PLA_FILE_F;
else if ( !strcmp(Buffer, "fr") )
*pType = PLA_FILE_FR;
else if ( !strcmp(Buffer, "fd") )
*pType = PLA_FILE_FD;
else if ( !strcmp(Buffer, "fdr") )
*pType = PLA_FILE_FDR;
}
}
if ( *pnIns <= 0 )
printf( "The number of inputs (.i) should be positive.\n" );
if ( *pnOuts <= 0 )
printf( "The number of outputs (.o) should be positive.\n" );
return *pnIns > 0 && *pnOuts > 0;
}
Vec_Str_t * Pla_ReadPlaBody( char * pBuffer, char * pLimit, Pla_File_t Type )
{
char * pTemp;
Vec_Str_t * vLits;
vLits = Vec_StrAlloc( 10000 );
for ( pTemp = pBuffer; pTemp < pLimit; pTemp++ )
{
if ( *pTemp == '.' )
while ( *pTemp && *pTemp != '\n' )
pTemp++;
if ( *pTemp == '0' )
Vec_StrPush( vLits, (char)PLA_LIT_ZERO );
else if ( *pTemp == '1' )
Vec_StrPush( vLits, (char)PLA_LIT_ONE );
else if ( *pTemp == '-' || *pTemp == '2' )
Vec_StrPush( vLits, (char)PLA_LIT_DASH );
else if ( *pTemp == '~' ) // no meaning
{
if ( Type == PLA_FILE_F || Type == PLA_FILE_FD )
Vec_StrPush( vLits, (char)PLA_LIT_ZERO );
else if ( Type == PLA_FILE_FR )
Vec_StrPush( vLits, (char)PLA_LIT_DASH );
else if ( Type == PLA_FILE_FDR )
Vec_StrPush( vLits, (char)PLA_LIT_FULL );
else assert( 0 );
}
}
return vLits;
}
void Pla_ReadAddBody( Pla_Man_t * p, Vec_Str_t * vLits )
{
word * pCubeIn, * pCubeOut;
int i, k, Lit, Count = 0;
int nCubesReal = Vec_StrSize(vLits) / (p->nIns + p->nOuts);
assert( Vec_StrSize(vLits) % (p->nIns + p->nOuts) == 0 );
if ( nCubesReal != Pla_ManCubeNum(p) )
{
printf( "Warning: Declared number of cubes (%d) differs from the actual (%d).\n",
Pla_ManCubeNum(p), nCubesReal );
if ( nCubesReal < Pla_ManCubeNum(p) )
Vec_IntShrink( &p->vCubes, nCubesReal );
else
{
assert( nCubesReal > Pla_ManCubeNum(p) );
Vec_IntFillNatural( &p->vCubes, nCubesReal );
Vec_WrdFillExtra( &p->vInBits, nCubesReal * p->nInWords, 0 );
Vec_WrdFillExtra( &p->vOutBits, nCubesReal * p->nOutWords, 0 );
}
}
Pla_ForEachCubeInOut( p, pCubeIn, pCubeOut, i )
{
Pla_CubeForEachLit( p->nIns, pCubeIn, Lit, k )
Pla_CubeSetLit( pCubeIn, k, (Pla_Lit_t)Vec_StrEntry(vLits, Count++) );
Pla_CubeForEachLit( p->nOuts, pCubeOut, Lit, k )
Pla_CubeSetLit( pCubeOut, k, (Pla_Lit_t)Vec_StrEntry(vLits, Count++) );
}
assert( Count == Vec_StrSize(vLits) );
}
Pla_Man_t * Pla_ReadPla( char * pFileName )
{
Pla_Man_t * p;
Vec_Str_t * vLits;
int nIns, nOuts, nCubes, Type;
char * pBuffer, * pLimit;
pBuffer = Pla_ReadFile( pFileName, &pLimit );
if ( pBuffer == NULL )
return NULL;
Pla_ReadPlaRemoveComments( pBuffer, pLimit );
if ( Pla_ReadPlaHeader( pBuffer, pLimit, &nIns, &nOuts, &nCubes, &Type ) )
{
vLits = Pla_ReadPlaBody( pBuffer, pLimit, (Pla_File_t)Type );
if ( Vec_StrSize(vLits) % (nIns + nOuts) == 0 )
{
if ( nCubes == -1 )
nCubes = Vec_StrSize(vLits) / (nIns + nOuts);
p = Pla_ManAlloc( pFileName, nIns, nOuts, nCubes );
p->Type = (Pla_File_t)Type;
Pla_ReadAddBody( p, vLits );
Vec_StrFree( vLits );
ABC_FREE( pBuffer );
return p;
}
printf( "Literal count is incorrect (in = %d; out = %d; lit = %d).\n", nIns, nOuts, Vec_StrSize(vLits) );
Vec_StrFree( vLits );
}
ABC_FREE( pBuffer );
return NULL;
}
////////////////////////////////////////////////////////////////////////
/// END OF FILE ///
////////////////////////////////////////////////////////////////////////
ABC_NAMESPACE_IMPL_END
|
