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abc/src/base/io/ioReadBlifMv.c

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/**CFile****************************************************************
FileName [ioReadBlifMv.c]
SystemName [ABC: Logic synthesis and verification system.]
PackageName [Command processing package.]
Synopsis [Procedures to read BLIF-MV file.]
Author [Alan Mishchenko]
Affiliation [UC Berkeley]
Date [Ver. 1.0. Started - January 8, 2007.]
Revision [$Id: ioReadBlifMv.c,v 1.00 2007/01/08 00:00:00 alanmi Exp $]
***********************************************************************/
#include "abc.h"
#include "extra.h"
#include "vecPtr.h"
#include "io.h"
////////////////////////////////////////////////////////////////////////
/// DECLARATIONS ///
////////////////////////////////////////////////////////////////////////
#define IO_BLIFMV_MAXVALUES 256
typedef struct Io_MvVar_t_ Io_MvVar_t; // parsing var
typedef struct Io_MvMod_t_ Io_MvMod_t; // parsing model
typedef struct Io_MvMan_t_ Io_MvMan_t; // parsing manager
struct Io_MvVar_t_
{
int nValues; // the number of values
char ** pNames; // the value names
};
struct Io_MvMod_t_
{
// file lines
char * pName; // .model line
Vec_Ptr_t * vInputs; // .inputs lines
Vec_Ptr_t * vOutputs; // .outputs lines
Vec_Ptr_t * vLatches; // .latch lines
Vec_Ptr_t * vResets; // .reset lines
Vec_Ptr_t * vNames; // .names lines
Vec_Ptr_t * vSubckts; // .subckt lines
Vec_Ptr_t * vMvs; // .mv lines
int fBlackBox; // indicates blackbox model
// the resulting network
Abc_Ntk_t * pNtk;
Abc_Obj_t * pResetLatch;
// the parent manager
Io_MvMan_t * pMan;
};
struct Io_MvMan_t_
{
// general info about file
int fBlifMv; // the file is BLIF-MV
int fUseReset; // the reset circuitry is added
char * pFileName; // the name of the file
char * pBuffer; // the contents of the file
Vec_Ptr_t * vLines; // the line beginnings
// the results of reading
Abc_Lib_t * pDesign; // the design under construction
int nNDnodes; // the counter of ND nodes
// intermediate storage for models
Vec_Ptr_t * vModels; // vector of models
Io_MvMod_t * pLatest; // the current model
// current processing info
Vec_Ptr_t * vTokens; // the current tokens
Vec_Ptr_t * vTokens2; // the current tokens
Vec_Str_t * vFunc; // the local function
// error reporting
char sError[512]; // the error string generated during parsing
// statistics
int nTablesRead; // the number of processed tables
int nTablesLeft; // the number of dangling tables
};
// static functions
static Io_MvMan_t * Io_MvAlloc();
static void Io_MvFree( Io_MvMan_t * p );
static Io_MvMod_t * Io_MvModAlloc();
static void Io_MvModFree( Io_MvMod_t * p );
static char * Io_MvLoadFile( char * pFileName );
static void Io_MvReadPreparse( Io_MvMan_t * p );
static void Io_MvReadInterfaces( Io_MvMan_t * p );
static Abc_Lib_t * Io_MvParse( Io_MvMan_t * p );
static int Io_MvParseLineModel( Io_MvMod_t * p, char * pLine );
static int Io_MvParseLineInputs( Io_MvMod_t * p, char * pLine );
static int Io_MvParseLineOutputs( Io_MvMod_t * p, char * pLine );
static int Io_MvParseLineLatch( Io_MvMod_t * p, char * pLine );
static int Io_MvParseLineSubckt( Io_MvMod_t * p, char * pLine );
static int Io_MvParseLineMv( Io_MvMod_t * p, char * pLine );
static int Io_MvParseLineNamesMv( Io_MvMod_t * p, char * pLine, int fReset );
static int Io_MvParseLineNamesBlif( Io_MvMod_t * p, char * pLine );
static int Io_MvParseLineGateBlif( Io_MvMod_t * p, Vec_Ptr_t * vTokens );
static Io_MvVar_t * Abc_NtkMvVarDup( Abc_Ntk_t * pNtk, Io_MvVar_t * pVar );
static int Io_MvCharIsSpace( char s ) { return s == ' ' || s == '\t' || s == '\r' || s == '\n'; }
static int Io_MvCharIsMvSymb( char s ) { return s == '(' || s == ')' || s == '{' || s == '}' || s == '-' || s == ',' || s == '!'; }
extern void Abc_NtkStartMvVars( Abc_Ntk_t * pNtk );
////////////////////////////////////////////////////////////////////////
/// FUNCTION DEFINITIONS ///
////////////////////////////////////////////////////////////////////////
/**Function*************************************************************
Synopsis [Reads the network from the BLIF or BLIF-MV file.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
Abc_Ntk_t * Io_ReadBlifMv( char * pFileName, int fBlifMv, int fCheck )
{
FILE * pFile;
Io_MvMan_t * p;
Abc_Ntk_t * pNtk;
Abc_Lib_t * pDesign;
char * pDesignName;
int RetValue, i;
// check that the file is available
pFile = fopen( pFileName, "rb" );
if ( pFile == NULL )
{
printf( "Io_ReadBlifMv(): The file is unavailable (absent or open).\n" );
return 0;
}
fclose( pFile );
// start the file reader
p = Io_MvAlloc();
p->fBlifMv = fBlifMv;
p->fUseReset = 0;
p->pFileName = pFileName;
p->pBuffer = Io_MvLoadFile( pFileName );
if ( p->pBuffer == NULL )
{
Io_MvFree( p );
return NULL;
}
// set the design name
pDesignName = Extra_FileNameGeneric( pFileName );
p->pDesign = Abc_LibCreate( pDesignName );
free( pDesignName );
// free the HOP manager
Hop_ManStop( p->pDesign->pManFunc );
p->pDesign->pManFunc = NULL;
// prepare the file for parsing
Io_MvReadPreparse( p );
// parse interfaces of each network
Io_MvReadInterfaces( p );
// construct the network
pDesign = Io_MvParse( p );
if ( p->sError[0] )
fprintf( stdout, "%s\n", p->sError );
Io_MvFree( p );
if ( pDesign == NULL )
return NULL;
// pDesign should be linked to all models of the design
// make sure that everything is okay with the network structure
if ( fCheck )
{
Vec_PtrForEachEntry( pDesign->vModules, pNtk, i )
{
if ( !Abc_NtkCheckRead( pNtk ) )
{
printf( "Io_ReadBlifMv: The network check has failed for network %s.\n", pNtk->pName );
Abc_LibFree( pDesign, NULL );
return NULL;
}
}
}
//Abc_LibPrint( pDesign );
// detect top-level model
RetValue = Abc_LibFindTopLevelModels( pDesign );
pNtk = Vec_PtrEntry( pDesign->vTops, 0 );
if ( RetValue > 1 )
printf( "Warning: The design has %d root-level modules. The first one (%s) will be used.\n",
Vec_PtrSize(pDesign->vTops), pNtk->pName );
// extract the master network
pNtk->pDesign = pDesign;
pDesign->pManFunc = NULL;
// verify the design for cyclic dependence
assert( Vec_PtrSize(pDesign->vModules) > 0 );
if ( Vec_PtrSize(pDesign->vModules) == 1 )
{
// printf( "Warning: The design is not hierarchical.\n" );
Abc_LibFree( pDesign, pNtk );
pNtk->pDesign = NULL;
pNtk->pSpec = Extra_UtilStrsav( pFileName );
}
else
Abc_NtkIsAcyclicHierarchy( pNtk );
//Io_WriteBlifMv( pNtk, "_temp_.mv" );
if ( pNtk->pSpec == NULL )
pNtk->pSpec = Extra_UtilStrsav( pFileName );
return pNtk;
}
/**Function*************************************************************
Synopsis [Allocates the BLIF parsing structure.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
static Io_MvMan_t * Io_MvAlloc()
{
Io_MvMan_t * p;
p = ALLOC( Io_MvMan_t, 1 );
memset( p, 0, sizeof(Io_MvMan_t) );
p->vLines = Vec_PtrAlloc( 512 );
p->vModels = Vec_PtrAlloc( 512 );
p->vTokens = Vec_PtrAlloc( 512 );
p->vTokens2 = Vec_PtrAlloc( 512 );
p->vFunc = Vec_StrAlloc( 512 );
return p;
}
/**Function*************************************************************
Synopsis [Frees the BLIF parsing structure.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
static void Io_MvFree( Io_MvMan_t * p )
{
Io_MvMod_t * pMod;
int i;
if ( p->pDesign )
Abc_LibFree( p->pDesign, NULL );
if ( p->pBuffer )
free( p->pBuffer );
if ( p->vLines )
Vec_PtrFree( p->vLines );
if ( p->vModels )
{
Vec_PtrForEachEntry( p->vModels, pMod, i )
Io_MvModFree( pMod );
Vec_PtrFree( p->vModels );
}
Vec_PtrFree( p->vTokens );
Vec_PtrFree( p->vTokens2 );
Vec_StrFree( p->vFunc );
free( p );
}
/**Function*************************************************************
Synopsis [Allocates the BLIF parsing structure for one model.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
static Io_MvMod_t * Io_MvModAlloc()
{
Io_MvMod_t * p;
p = ALLOC( Io_MvMod_t, 1 );
memset( p, 0, sizeof(Io_MvMod_t) );
p->vInputs = Vec_PtrAlloc( 512 );
p->vOutputs = Vec_PtrAlloc( 512 );
p->vLatches = Vec_PtrAlloc( 512 );
p->vResets = Vec_PtrAlloc( 512 );
p->vNames = Vec_PtrAlloc( 512 );
p->vSubckts = Vec_PtrAlloc( 512 );
p->vMvs = Vec_PtrAlloc( 512 );
return p;
}
/**Function*************************************************************
Synopsis [Allocates the BLIF parsing structure for one model.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
static void Io_MvModFree( Io_MvMod_t * p )
{
// if ( p->pNtk )
// Abc_NtkDelete( p->pNtk );
Vec_PtrFree( p->vInputs );
Vec_PtrFree( p->vOutputs );
Vec_PtrFree( p->vLatches );
Vec_PtrFree( p->vResets );
Vec_PtrFree( p->vNames );
Vec_PtrFree( p->vSubckts );
Vec_PtrFree( p->vMvs );
free( p );
}
/**Function*************************************************************
Synopsis [Counts the number of given chars.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
static int Io_MvCountChars( char * pLine, char Char )
{
char * pCur;
int Counter = 0;
for ( pCur = pLine; *pCur; pCur++ )
if ( *pCur == Char )
Counter++;
return Counter;
}
/**Function*************************************************************
Synopsis [Returns the place where the arrow is hiding.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
static char * Io_MvFindArrow( char * pLine )
{
char * pCur;
for ( pCur = pLine; *(pCur+1); pCur++ )
if ( *pCur == '-' && *(pCur+1) == '>' )
{
*pCur = ' ';
*(pCur+1) = ' ';
return pCur;
}
return NULL;
}
/**Function*************************************************************
Synopsis [Collects the already split tokens.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
static void Io_MvCollectTokens( Vec_Ptr_t * vTokens, char * pInput, char * pOutput )
{
char * pCur;
Vec_PtrClear( vTokens );
for ( pCur = pInput; pCur < pOutput; pCur++ )
{
if ( *pCur == 0 )
continue;
Vec_PtrPush( vTokens, pCur );
while ( *++pCur );
}
}
/**Function*************************************************************
Synopsis [Splits the line into tokens.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
static void Io_MvSplitIntoTokens( Vec_Ptr_t * vTokens, char * pLine, char Stop )
{
char * pCur;
// clear spaces
for ( pCur = pLine; *pCur != Stop; pCur++ )
if ( Io_MvCharIsSpace(*pCur) )
*pCur = 0;
// collect tokens
Io_MvCollectTokens( vTokens, pLine, pCur );
}
/**Function*************************************************************
Synopsis [Splits the line into tokens when .default may be present.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
static void Io_MvSplitIntoTokensMv( Vec_Ptr_t * vTokens, char * pLine )
{
char * pCur;
// clear spaces
for ( pCur = pLine; *pCur != '.' || *(pCur+1) == 'd'; pCur++ )
if ( Io_MvCharIsSpace(*pCur) )
*pCur = 0;
// collect tokens
Io_MvCollectTokens( vTokens, pLine, pCur );
}
/**Function*************************************************************
Synopsis [Splits the line into tokens.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
static void Io_MvSplitIntoTokensAndClear( Vec_Ptr_t * vTokens, char * pLine, char Stop, char Char )
{
char * pCur;
// clear spaces
for ( pCur = pLine; *pCur != Stop; pCur++ )
if ( Io_MvCharIsSpace(*pCur) || *pCur == Char )
*pCur = 0;
// collect tokens
Io_MvCollectTokens( vTokens, pLine, pCur );
}
/**Function*************************************************************
Synopsis [Returns the 1-based number of the line in which the token occurs.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
static int Io_MvGetLine( Io_MvMan_t * p, char * pToken )
{
char * pLine;
int i;
Vec_PtrForEachEntry( p->vLines, pLine, i )
if ( pToken < pLine )
return i;
return -1;
}
/**Function*************************************************************
Synopsis [Reads the file into a character buffer.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
static char * Io_MvLoadFile( char * pFileName )
{
FILE * pFile;
int nFileSize;
char * pContents;
pFile = fopen( pFileName, "rb" );
if ( pFile == NULL )
{
printf( "Io_MvLoadFile(): The file is unavailable (absent or open).\n" );
return NULL;
}
fseek( pFile, 0, SEEK_END );
nFileSize = ftell( pFile );
if ( nFileSize == 0 )
{
printf( "Io_MvLoadFile(): The file is empty.\n" );
return NULL;
}
pContents = ALLOC( char, nFileSize + 10 );
rewind( pFile );
fread( pContents, nFileSize, 1, pFile );
fclose( pFile );
// finish off the file with the spare .end line
// some benchmarks suddenly break off without this line
strcpy( pContents + nFileSize, "\n.end\n" );
return pContents;
}
/**Function*************************************************************
Synopsis [Prepares the parsing.]
Description [Performs several preliminary operations:
- Cuts the file buffer into separate lines.
- Removes comments and line extenders.
- Sorts lines by directives.
- Estimates the number of objects.
- Allocates room for the objects.
- Allocates room for the hash table.]
SideEffects []
SeeAlso []
***********************************************************************/
static void Io_MvReadPreparse( Io_MvMan_t * p )
{
char * pCur, * pPrev;
int i, fComment = 0;
// parse the buffer into lines and remove comments
Vec_PtrPush( p->vLines, p->pBuffer );
for ( pCur = p->pBuffer; *pCur; pCur++ )
{
if ( *pCur == '\n' )
{
*pCur = 0;
// if ( *(pCur-1) == '\r' )
// *(pCur-1) = 0;
fComment = 0;
Vec_PtrPush( p->vLines, pCur + 1 );
}
else if ( *pCur == '#' )
fComment = 1;
// remove comments
if ( fComment )
*pCur = 0;
}
// unfold the line extensions and sort lines by directive
Vec_PtrForEachEntry( p->vLines, pCur, i )
{
if ( *pCur == 0 )
continue;
// find previous non-space character
for ( pPrev = pCur - 2; pPrev >= p->pBuffer; pPrev-- )
if ( !Io_MvCharIsSpace(*pPrev) )
break;
// if it is the line extender, overwrite it with spaces
if ( *pPrev == '\\' )
{
for ( ; *pPrev; pPrev++ )
*pPrev = ' ';
*pPrev = ' ';
continue;
}
// skip spaces at the beginning of the line
while ( Io_MvCharIsSpace(*pCur++) );
// parse directives
if ( *(pCur-1) != '.' )
continue;
if ( !strncmp(pCur, "names", 5) || !strncmp(pCur, "table", 5) || !strncmp(pCur, "gate", 4) )
Vec_PtrPush( p->pLatest->vNames, pCur );
else if ( p->fBlifMv && (!strncmp(pCur, "def ", 4) || !strncmp(pCur, "default ", 8)) )
continue;
else if ( !strncmp(pCur, "latch", 5) )
Vec_PtrPush( p->pLatest->vLatches, pCur );
else if ( !strncmp(pCur, "r ", 2) || !strncmp(pCur, "reset ", 6) )
Vec_PtrPush( p->pLatest->vResets, pCur );
else if ( !strncmp(pCur, "inputs", 6) )
Vec_PtrPush( p->pLatest->vInputs, pCur );
else if ( !strncmp(pCur, "outputs", 7) )
Vec_PtrPush( p->pLatest->vOutputs, pCur );
else if ( !strncmp(pCur, "subckt", 6) )
Vec_PtrPush( p->pLatest->vSubckts, pCur );
else if ( p->fBlifMv && !strncmp(pCur, "mv", 2) )
Vec_PtrPush( p->pLatest->vMvs, pCur );
else if ( !strncmp(pCur, "blackbox", 8) )
p->pLatest->fBlackBox = 1;
else if ( !strncmp(pCur, "model", 5) )
{
p->pLatest = Io_MvModAlloc();
p->pLatest->pName = pCur;
p->pLatest->pMan = p;
}
else if ( !strncmp(pCur, "end", 3) )
{
if ( p->pLatest )
Vec_PtrPush( p->vModels, p->pLatest );
p->pLatest = NULL;
}
else if ( !strncmp(pCur, "exdc", 4) )
{
fprintf( stdout, "Line %d: Skipping EXDC network.\n", Io_MvGetLine(p, pCur) );
break;
}
else if ( !strncmp(pCur, "delay", 5) )
{}
else if ( !strncmp(pCur, "input_arrival", 13) )
{}
else if ( !strncmp(pCur, "output_required", 15) )
{}
else
{
pCur--;
if ( pCur[strlen(pCur)-1] == '\r' )
pCur[strlen(pCur)-1] = 0;
fprintf( stdout, "Line %d: Skipping line \"%s\".\n", Io_MvGetLine(p, pCur), pCur );
}
}
}
/**Function*************************************************************
Synopsis [Parses interfaces of the models.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
static void Io_MvReadInterfaces( Io_MvMan_t * p )
{
Io_MvMod_t * pMod;
char * pLine;
int i, k;
// iterate through the models
Vec_PtrForEachEntry( p->vModels, pMod, i )
{
// parse the model
if ( !Io_MvParseLineModel( pMod, pMod->pName ) )
return;
// add model to the design
if ( !Abc_LibAddModel( p->pDesign, pMod->pNtk ) )
{
sprintf( p->sError, "Line %d: Model %s is defined twice.", Io_MvGetLine(p, pMod->pName), pMod->pName );
return;
}
// parse the inputs
Vec_PtrForEachEntry( pMod->vInputs, pLine, k )
if ( !Io_MvParseLineInputs( pMod, pLine ) )
return;
// parse the outputs
Vec_PtrForEachEntry( pMod->vOutputs, pLine, k )
if ( !Io_MvParseLineOutputs( pMod, pLine ) )
return;
}
}
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
static Abc_Lib_t * Io_MvParse( Io_MvMan_t * p )
{
Abc_Lib_t * pDesign;
Io_MvMod_t * pMod;
char * pLine;
int i, k;
// iterate through the models
Vec_PtrForEachEntry( p->vModels, pMod, i )
{
// check if there any MV lines
if ( Vec_PtrSize(pMod->vMvs) > 0 )
Abc_NtkStartMvVars( pMod->pNtk );
// parse the mv lines
Vec_PtrForEachEntry( pMod->vMvs, pLine, k )
if ( !Io_MvParseLineMv( pMod, pLine ) )
return NULL;
// if reset lines are used there should be the same number of them as latches
if ( Vec_PtrSize(pMod->vResets) > 0 )
{
if ( Vec_PtrSize(pMod->vLatches) != Vec_PtrSize(pMod->vResets) )
{
sprintf( p->sError, "Line %d: Model %s has different number of latches (%d) and reset nodes (%d).",
Io_MvGetLine(p, pMod->pName), Abc_NtkName(pMod->pNtk), Vec_PtrSize(pMod->vLatches), Vec_PtrSize(pMod->vResets) );
return NULL;
}
// create binary latch with 1-data and 0-init
if ( p->fUseReset )
pMod->pResetLatch = Io_ReadCreateResetLatch( pMod->pNtk, p->fBlifMv );
}
// parse the latches
Vec_PtrForEachEntry( pMod->vLatches, pLine, k )
if ( !Io_MvParseLineLatch( pMod, pLine ) )
return NULL;
// parse the reset lines
if ( p->fUseReset )
Vec_PtrForEachEntry( pMod->vResets, pLine, k )
if ( !Io_MvParseLineNamesMv( pMod, pLine, 1 ) )
return NULL;
// parse the nodes
if ( p->fBlifMv )
{
Vec_PtrForEachEntry( pMod->vNames, pLine, k )
if ( !Io_MvParseLineNamesMv( pMod, pLine, 0 ) )
return NULL;
}
else
{
Vec_PtrForEachEntry( pMod->vNames, pLine, k )
if ( !Io_MvParseLineNamesBlif( pMod, pLine ) )
return NULL;
}
// parse the subcircuits
Vec_PtrForEachEntry( pMod->vSubckts, pLine, k )
if ( !Io_MvParseLineSubckt( pMod, pLine ) )
return NULL;
// finalize the network
Abc_NtkFinalizeRead( pMod->pNtk );
}
if ( p->nNDnodes )
// printf( "Warning: The parser added %d PIs to replace non-deterministic nodes.\n", p->nNDnodes );
printf( "Warning: The parser added %d constant 0 nodes to replace non-deterministic nodes.\n", p->nNDnodes );
// return the network
pDesign = p->pDesign;
p->pDesign = NULL;
return pDesign;
}
/**Function*************************************************************
Synopsis [Parses the model line.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
static int Io_MvParseLineModel( Io_MvMod_t * p, char * pLine )
{
Vec_Ptr_t * vTokens = p->pMan->vTokens;
char * pToken;
Io_MvSplitIntoTokens( vTokens, pLine, '\0' );
pToken = Vec_PtrEntry( vTokens, 0 );
assert( !strcmp(pToken, "model") );
if ( Vec_PtrSize(vTokens) != 2 )
{
sprintf( p->pMan->sError, "Line %d: Model line has %d entries while it should have 2.", Io_MvGetLine(p->pMan, pToken), Vec_PtrSize(vTokens) );
return 0;
}
if ( p->fBlackBox )
p->pNtk = Abc_NtkAlloc( ABC_NTK_NETLIST, ABC_FUNC_BLACKBOX, 1 );
else if ( p->pMan->fBlifMv )
p->pNtk = Abc_NtkAlloc( ABC_NTK_NETLIST, ABC_FUNC_BLIFMV, 1 );
else
p->pNtk = Abc_NtkAlloc( ABC_NTK_NETLIST, ABC_FUNC_SOP, 1 );
p->pNtk->pName = Extra_UtilStrsav( Vec_PtrEntry(vTokens, 1) );
return 1;
}
/**Function*************************************************************
Synopsis [Parses the inputs line.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
static int Io_MvParseLineInputs( Io_MvMod_t * p, char * pLine )
{
Vec_Ptr_t * vTokens = p->pMan->vTokens;
char * pToken;
int i;
Io_MvSplitIntoTokens( vTokens, pLine, '\0' );
pToken = Vec_PtrEntry(vTokens, 0);
assert( !strcmp(pToken, "inputs") );
Vec_PtrForEachEntryStart( vTokens, pToken, i, 1 )
Io_ReadCreatePi( p->pNtk, pToken );
return 1;
}
/**Function*************************************************************
Synopsis [Parses the outputs line.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
static int Io_MvParseLineOutputs( Io_MvMod_t * p, char * pLine )
{
Vec_Ptr_t * vTokens = p->pMan->vTokens;
char * pToken;
int i;
Io_MvSplitIntoTokens( vTokens, pLine, '\0' );
pToken = Vec_PtrEntry(vTokens, 0);
assert( !strcmp(pToken, "outputs") );
Vec_PtrForEachEntryStart( vTokens, pToken, i, 1 )
Io_ReadCreatePo( p->pNtk, pToken );
return 1;
}
/**Function*************************************************************
Synopsis [Parses the latches line.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
static int Io_MvParseLineLatch( Io_MvMod_t * p, char * pLine )
{
Vec_Ptr_t * vTokens = p->pMan->vTokens;
Abc_Obj_t * pObj, * pNet;
char * pToken;
int Init;
Io_MvSplitIntoTokens( vTokens, pLine, '\0' );
pToken = Vec_PtrEntry(vTokens,0);
assert( !strcmp(pToken, "latch") );
if ( Vec_PtrSize(vTokens) < 3 )
{
sprintf( p->pMan->sError, "Line %d: Latch does not have input name and output name.", Io_MvGetLine(p->pMan, pToken) );
return 0;
}
// create latch
if ( p->pResetLatch == NULL )
{
pObj = Io_ReadCreateLatch( p->pNtk, Vec_PtrEntry(vTokens,1), Vec_PtrEntry(vTokens,2) );
// get initial value
if ( p->pMan->fBlifMv )
Abc_LatchSetInit0( pObj );
else
{
if ( Vec_PtrSize(vTokens) > 3 )
Init = atoi( Vec_PtrEntryLast(vTokens) );
else
Init = 2;
if ( Init < 0 || Init > 2 )
{
sprintf( p->pMan->sError, "Line %d: Initial state of the latch is incorrect \"%s\".", Io_MvGetLine(p->pMan, pToken), Vec_PtrEntry(vTokens,3) );
return 0;
}
if ( Init == 0 )
Abc_LatchSetInit0( pObj );
else if ( Init == 1 )
Abc_LatchSetInit1( pObj );
else // if ( Init == 2 )
Abc_LatchSetInitDc( pObj );
}
}
else
{
// get the net corresponding to the output of the latch
pNet = Abc_NtkFindOrCreateNet( p->pNtk, Vec_PtrEntry(vTokens,2) );
// get the net corresponding to the latch output (feeding into reset MUX)
pNet = Abc_NtkFindOrCreateNet( p->pNtk, Abc_ObjNameSuffix(pNet, "_out") );
// create latch
pObj = Io_ReadCreateLatch( p->pNtk, Vec_PtrEntry(vTokens,1), Abc_ObjName(pNet) );
Abc_LatchSetInit0( pObj );
}
return 1;
}
/**Function*************************************************************
Synopsis [Parses the subckt line.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
static int Io_MvParseLineSubckt( Io_MvMod_t * p, char * pLine )
{
Vec_Ptr_t * vTokens = p->pMan->vTokens;
Abc_Ntk_t * pModel;
Abc_Obj_t * pBox, * pNet, * pTerm;
char * pToken, * pName, ** ppNames;
int nEquals, i, k;
// split the line into tokens
nEquals = Io_MvCountChars( pLine, '=' );
Io_MvSplitIntoTokensAndClear( vTokens, pLine, '\0', '=' );
pToken = Vec_PtrEntry(vTokens,0);
assert( !strcmp(pToken, "subckt") );
// get the model for this box
pName = Vec_PtrEntry(vTokens,1);
pModel = Abc_LibFindModelByName( p->pMan->pDesign, pName );
if ( pModel == NULL )
{
sprintf( p->pMan->sError, "Line %d: Cannot find the model for subcircuit %s.", Io_MvGetLine(p->pMan, pToken), pName );
return 0;
}
// check if the number of tokens is correct
if ( nEquals != Abc_NtkPiNum(pModel) + Abc_NtkPoNum(pModel) )
{
sprintf( p->pMan->sError, "Line %d: The number of ports (%d) in .subckt differs from the sum of PIs and POs of the model (%d).",
Io_MvGetLine(p->pMan, pToken), nEquals, Abc_NtkPiNum(pModel) + Abc_NtkPoNum(pModel) );
return 0;
}
// get the names
ppNames = (char **)Vec_PtrArray(vTokens) + 2 + p->pMan->fBlifMv;
// create the box with these terminals
if ( Abc_NtkHasBlackbox(pModel) )
pBox = Abc_NtkCreateBlackbox( p->pNtk );
else
pBox = Abc_NtkCreateWhitebox( p->pNtk );
pBox->pData = pModel;
if ( p->pMan->fBlifMv )
Abc_ObjAssignName( pBox, Vec_PtrEntry(vTokens,2), NULL );
Abc_NtkForEachPi( pModel, pTerm, i )
{
// find this terminal among the formal inputs of the subcircuit
pName = Abc_ObjName(Abc_ObjFanout0(pTerm));
for ( k = 0; k < nEquals; k++ )
if ( !strcmp( ppNames[2*k], pName ) )
break;
if ( k == nEquals )
{
sprintf( p->pMan->sError, "Line %d: Cannot find PI \"%s\" of the model \"%s\" as a formal input of the subcircuit.",
Io_MvGetLine(p->pMan, pToken), pName, Abc_NtkName(pModel) );
return 0;
}
// create the BI with the actual name
pNet = Abc_NtkFindOrCreateNet( p->pNtk, ppNames[2*k+1] );
pTerm = Abc_NtkCreateBi( p->pNtk );
Abc_ObjAddFanin( pBox, pTerm );
Abc_ObjAddFanin( pTerm, pNet );
}
Abc_NtkForEachPo( pModel, pTerm, i )
{
// find this terminal among the formal outputs of the subcircuit
pName = Abc_ObjName(Abc_ObjFanin0(pTerm));
for ( k = 0; k < nEquals; k++ )
if ( !strcmp( ppNames[2*k], pName ) )
break;
if ( k == nEquals )
{
sprintf( p->pMan->sError, "Line %d: Cannot find PO \"%s\" of the modell \"%s\" as a formal output of the subcircuit.",
Io_MvGetLine(p->pMan, pToken), pName, Abc_NtkName(pModel) );
return 0;
}
// create the BI with the actual name
pNet = Abc_NtkFindOrCreateNet( p->pNtk, ppNames[2*k+1] );
pTerm = Abc_NtkCreateBo( p->pNtk );
Abc_ObjAddFanin( pNet, pTerm );
Abc_ObjAddFanin( pTerm, pBox );
}
return 1;
}
/**Function*************************************************************
Synopsis [Parses the mv line.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
static int Io_MvParseLineMv( Io_MvMod_t * p, char * pLine )
{
Vec_Ptr_t * vTokens = p->pMan->vTokens;
Abc_Obj_t * pObj;
Io_MvVar_t * pVar;
Extra_MmFlex_t * pFlex;
char * pName;
int nCommas, nValues, i, k;
// count commas and get the tokens
nCommas = Io_MvCountChars( pLine, ',' );
Io_MvSplitIntoTokensAndClear( vTokens, pLine, '\0', ',' );
pName = Vec_PtrEntry(vTokens,0);
assert( !strcmp(pName, "mv") );
// get the number of values
if ( Vec_PtrSize(vTokens) <= nCommas + 2 )
{
sprintf( p->pMan->sError, "Line %d: The number of values in not specified in .mv line.", Io_MvGetLine(p->pMan, pName), pName );
return 0;
}
nValues = atoi( Vec_PtrEntry(vTokens,nCommas+2) );
if ( nValues < 2 || nValues > IO_BLIFMV_MAXVALUES )
{
sprintf( p->pMan->sError, "Line %d: The number of values (%d) is incorrect (should be >= 2 and <= %d).",
Io_MvGetLine(p->pMan, pName), nValues, IO_BLIFMV_MAXVALUES );
return 0;
}
// if there is no symbolic values, quit
if ( nValues == 2 && Vec_PtrSize(vTokens) == nCommas + 3 )
return 1;
if ( Vec_PtrSize(vTokens) > nCommas + 3 && Vec_PtrSize(vTokens) - (nCommas + 3) != nValues )
{
sprintf( p->pMan->sError, "Line %d: Wrong number (%d) of symbolic value names (should be %d).",
Io_MvGetLine(p->pMan, pName), Vec_PtrSize(vTokens) - (nCommas + 3), nValues );
return 0;
}
// go through variables
pFlex = Abc_NtkMvVarMan( p->pNtk );
for ( i = 0; i <= nCommas; i++ )
{
pName = Vec_PtrEntry( vTokens, i+1 );
pObj = Abc_NtkFindOrCreateNet( p->pNtk, pName );
// allocate variable
pVar = (Io_MvVar_t *)Extra_MmFlexEntryFetch( pFlex, sizeof(Io_MvVar_t) );
pVar->nValues = nValues;
pVar->pNames = NULL;
// create names
if ( Vec_PtrSize(vTokens) > nCommas + 3 )
{
pVar->pNames = (char **)Extra_MmFlexEntryFetch( pFlex, sizeof(char *) * nValues );
Vec_PtrForEachEntryStart( vTokens, pName, k, nCommas + 3 )
{
pVar->pNames[k-(nCommas + 3)] = (char *)Extra_MmFlexEntryFetch( pFlex, strlen(pName) + 1 );
strcpy( pVar->pNames[k-(nCommas + 3)], pName );
}
}
// save the variable
Abc_ObjSetMvVar( pObj, pVar );
}
// make sure the names are unique
if ( pVar->pNames )
{
for ( i = 0; i < nValues; i++ )
for ( k = i+1; k < nValues; k++ )
if ( !strcmp(pVar->pNames[i], pVar->pNames[k]) )
{
pName = Vec_PtrEntry(vTokens,0);
sprintf( p->pMan->sError, "Line %d: Symbolic value name \"%s\" is repeated in .mv line.",
Io_MvGetLine(p->pMan, pName), pVar->pNames[i] );
return 0;
}
}
return 1;
}
/**Function*************************************************************
Synopsis [Writes the values into the BLIF-MV representation for the node.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
static int Io_MvWriteValues( Abc_Obj_t * pNode, Vec_Str_t * vFunc )
{
char Buffer[10];
Abc_Obj_t * pFanin;
int i;
// add the fanin number of values
Abc_ObjForEachFanin( pNode, pFanin, i )
{
sprintf( Buffer, "%d", Abc_ObjMvVarNum(pFanin) );
Vec_StrAppend( vFunc, Buffer );
Vec_StrPush( vFunc, ' ' );
}
// add the node number of values
sprintf( Buffer, "%d", Abc_ObjMvVarNum(Abc_ObjFanout0(pNode)) );
Vec_StrAppend( vFunc, Buffer );
Vec_StrPush( vFunc, '\n' );
return 1;
}
/**Function*************************************************************
Synopsis [Translated one literal.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
static int Io_MvParseLiteralMv( Io_MvMod_t * p, Abc_Obj_t * pNode, char * pToken, Vec_Str_t * vFunc, int iLit )
{
char Buffer[10];
Io_MvVar_t * pVar;
Abc_Obj_t * pFanin, * pNet;
char * pCur, * pNext;
int i;
// consider the equality literal
if ( pToken[0] == '=' )
{
// find the fanins
Abc_ObjForEachFanin( pNode, pFanin, i )
if ( !strcmp( Abc_ObjName(pFanin), pToken + 1 ) )
break;
if ( i == Abc_ObjFaninNum(pNode) )
{
sprintf( p->pMan->sError, "Line %d: Node name in the table \"%s\" cannot be found on .names line.",
Io_MvGetLine(p->pMan, pToken), pToken + 1 );
return 0;
}
Vec_StrPush( vFunc, '=' );
sprintf( Buffer, "%d", i );
Vec_StrAppend( vFunc, Buffer );
Vec_StrPush( vFunc, (char)((iLit == -1)? '\n' : ' ') );
return 1;
}
// consider regular literal
assert( iLit < Abc_ObjFaninNum(pNode) );
pNet = iLit >= 0 ? Abc_ObjFanin(pNode, iLit) : Abc_ObjFanout0(pNode);
pVar = Abc_ObjMvVar( pNet );
// if the var is absent or has no symbolic values quit
if ( pVar == NULL || pVar->pNames == NULL )
{
Vec_StrAppend( vFunc, pToken );
Vec_StrPush( vFunc, (char)((iLit == -1)? '\n' : ' ') );
return 1;
}
// parse the literal using symbolic values
for ( pCur = pToken; *pCur; pCur++ )
{
if ( Io_MvCharIsMvSymb(*pCur) )
{
Vec_StrPush( vFunc, *pCur );
continue;
}
// find the next MvSymb char
for ( pNext = pCur+1; *pNext; pNext++ )
if ( Io_MvCharIsMvSymb(*pNext) )
break;
// look for the value name
for ( i = 0; i < pVar->nValues; i++ )
if ( !strncmp( pVar->pNames[i], pCur, pNext-pCur ) )
break;
if ( i == pVar->nValues )
{
*pNext = 0;
sprintf( p->pMan->sError, "Line %d: Cannot find value name \"%s\" among the value names of variable \"%s\".",
Io_MvGetLine(p->pMan, pToken), pCur, Abc_ObjName(pNet) );
return 0;
}
// value name is found
sprintf( Buffer, "%d", i );
Vec_StrAppend( vFunc, Buffer );
// update the pointer
pCur = pNext - 1;
}
Vec_StrPush( vFunc, (char)((iLit == -1)? '\n' : ' ') );
return 1;
}
/**Function*************************************************************
Synopsis [Constructs the MV-SOP cover from the file parsing info.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
static char * Io_MvParseTableMv( Io_MvMod_t * p, Abc_Obj_t * pNode, Vec_Ptr_t * vTokens2, int nInputs, int nOutputs, int iOut )
{
Vec_Str_t * vFunc = p->pMan->vFunc;
char * pFirst, * pToken;
int iStart, i;
// prepare the place for the cover
Vec_StrClear( vFunc );
// write the number of values
// Io_MvWriteValues( pNode, vFunc );
// get the first token
pFirst = Vec_PtrEntry( vTokens2, 0 );
if ( pFirst[0] == '.' )
{
// write the default literal
Vec_StrPush( vFunc, 'd' );
pToken = Vec_PtrEntry(vTokens2, 1 + iOut);
if ( !Io_MvParseLiteralMv( p, pNode, pToken, vFunc, -1 ) )
return NULL;
iStart = 1 + nOutputs;
}
else
iStart = 0;
// write the remaining literals
while ( iStart < Vec_PtrSize(vTokens2) )
{
// input literals
for ( i = 0; i < nInputs; i++ )
{
pToken = Vec_PtrEntry( vTokens2, iStart + i );
if ( !Io_MvParseLiteralMv( p, pNode, pToken, vFunc, i ) )
return NULL;
}
// output literal
pToken = Vec_PtrEntry( vTokens2, iStart + nInputs + iOut );
if ( !Io_MvParseLiteralMv( p, pNode, pToken, vFunc, -1 ) )
return NULL;
// update the counter
iStart += nInputs + nOutputs;
}
Vec_StrPush( vFunc, '\0' );
return Vec_StrArray( vFunc );
}
/**Function*************************************************************
Synopsis [Adds reset circuitry corresponding to latch with pName.]
Description [Returns the reset node's net.]
SideEffects []
SeeAlso []
***********************************************************************/
static Abc_Obj_t * Io_MvParseAddResetCircuit( Io_MvMod_t * p, char * pName )
{
char Buffer[50];
Abc_Obj_t * pNode, * pData0Net, * pData1Net, * pResetLONet, * pOutNet;
Io_MvVar_t * pVar;
// make sure the reset latch exists
assert( p->pResetLatch != NULL );
// get the reset net
pResetLONet = Abc_ObjFanout0(Abc_ObjFanout0(p->pResetLatch));
// get the output net
pOutNet = Abc_NtkFindOrCreateNet( p->pNtk, pName );
// get the data nets
pData0Net = Abc_NtkFindOrCreateNet( p->pNtk, Abc_ObjNameSuffix(pOutNet, "_reset") );
pData1Net = Abc_NtkFindOrCreateNet( p->pNtk, Abc_ObjNameSuffix(pOutNet, "_out") );
// duplicate MV variables
if ( Abc_NtkMvVar(p->pNtk) )
{
pVar = Abc_ObjMvVar( pOutNet );
Abc_ObjSetMvVar( pData0Net, Abc_NtkMvVarDup(p->pNtk, pVar) );
Abc_ObjSetMvVar( pData1Net, Abc_NtkMvVarDup(p->pNtk, pVar) );
}
// create the node
pNode = Abc_NtkCreateNode( p->pNtk );
// create the output net
Abc_ObjAddFanin( pOutNet, pNode );
// create the function
if ( p->pMan->fBlifMv )
{
// Vec_Att_t * p = Abc_NtkMvVar( pNtk );
int nValues = Abc_ObjMvVarNum(pOutNet);
// sprintf( Buffer, "2 %d %d %d\n1 - - =1\n0 - - =2\n", nValues, nValues, nValues );
sprintf( Buffer, "1 - - =1\n0 - - =2\n" );
pNode->pData = Abc_SopRegister( p->pNtk->pManFunc, Buffer );
}
else
pNode->pData = Abc_SopCreateMux( p->pNtk->pManFunc );
// add nets
Abc_ObjAddFanin( pNode, pResetLONet );
Abc_ObjAddFanin( pNode, pData1Net );
Abc_ObjAddFanin( pNode, pData0Net );
return pData0Net;
}
/**Function*************************************************************
Synopsis [Parses the nodes line.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
static int Io_MvParseLineNamesMvOne( Io_MvMod_t * p, Vec_Ptr_t * vTokens, Vec_Ptr_t * vTokens2, int nInputs, int nOutputs, int iOut, int fReset )
{
Abc_Obj_t * pNet, * pNode;
char * pName;
// get the output name
pName = Vec_PtrEntry( vTokens, Vec_PtrSize(vTokens) - nOutputs + iOut );
// create the node
if ( fReset )
{
pNet = Abc_NtkFindNet( p->pNtk, pName );
if ( pNet == NULL )
{
sprintf( p->pMan->sError, "Line %d: Latch with output signal \"%s\" does not exist.", Io_MvGetLine(p->pMan, pName), pName );
return 0;
}
/*
if ( !Abc_ObjIsBo(Abc_ObjFanin0(pNet)) )
{
sprintf( p->pMan->sError, "Line %d: Reset line \"%s\" defines signal that is not a latch output.", Io_MvGetLine(p->pMan, pName), pName );
return 0;
}
*/
// construct the reset circuit and get the reset net feeding into it
pNet = Io_MvParseAddResetCircuit( p, pName );
// create fanins
pNode = Io_ReadCreateNode( p->pNtk, Abc_ObjName(pNet), (char **)(vTokens->pArray + 1), nInputs );
assert( nInputs == Vec_PtrSize(vTokens) - 2 );
}
else
{
pNet = Abc_NtkFindOrCreateNet( p->pNtk, pName );
if ( Abc_ObjFaninNum(pNet) > 0 )
{
sprintf( p->pMan->sError, "Line %d: Signal \"%s\" is defined more than once.", Io_MvGetLine(p->pMan, pName), pName );
return 0;
}
pNode = Io_ReadCreateNode( p->pNtk, pName, (char **)(vTokens->pArray + 1), nInputs );
}
// create the cover
pNode->pData = Io_MvParseTableMv( p, pNode, vTokens2, nInputs, nOutputs, iOut );
if ( pNode->pData == NULL )
return 0;
pNode->pData = Abc_SopRegister( p->pNtk->pManFunc, pNode->pData );
//printf( "Finished parsing node \"%s\" with table:\n%s\n", pName, pNode->pData );
return 1;
}
/**Function*************************************************************
Synopsis [Parses the nodes line.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
static int Io_MvParseLineNamesMv( Io_MvMod_t * p, char * pLine, int fReset )
{
Vec_Ptr_t * vTokens = p->pMan->vTokens;
Vec_Ptr_t * vTokens2 = p->pMan->vTokens2;
Abc_Obj_t * pNet;
char * pName, * pFirst, * pArrow;
int nInputs, nOutputs, nLiterals, nLines, i;
assert( p->pMan->fBlifMv );
// get the arrow if it is present
pArrow = Io_MvFindArrow( pLine );
if ( !p->pMan->fBlifMv && pArrow )
{
sprintf( p->pMan->sError, "Line %d: Multi-output node symbol (->) in binary BLIF file.", Io_MvGetLine(p->pMan, pLine) );
return 0;
}
// split names line into tokens
Io_MvSplitIntoTokens( vTokens, pLine, '\0' );
if ( fReset )
assert( !strcmp(Vec_PtrEntry(vTokens,0), "r") || !strcmp(Vec_PtrEntry(vTokens,0), "reset") );
else
assert( !strcmp(Vec_PtrEntry(vTokens,0), "names") || !strcmp(Vec_PtrEntry(vTokens,0), "table") );
// find the number of inputs and outputs
nInputs = Vec_PtrSize(vTokens) - 2;
nOutputs = 1;
if ( pArrow != NULL )
{
for ( i = Vec_PtrSize(vTokens) - 2; i >= 1; i-- )
if ( pArrow < (char*)Vec_PtrEntry(vTokens,i) )
{
nInputs--;
nOutputs++;
}
}
// split table into tokens
pName = Vec_PtrEntryLast( vTokens );
Io_MvSplitIntoTokensMv( vTokens2, pName + strlen(pName) );
pFirst = Vec_PtrEntry( vTokens2, 0 );
if ( pFirst[0] == '.' )
{
assert( pFirst[1] == 'd' );
nLiterals = Vec_PtrSize(vTokens2) - 1 - nOutputs;
}
else
nLiterals = Vec_PtrSize(vTokens2);
// check the number of lines
if ( nLiterals % (nInputs + nOutputs) != 0 )
{
sprintf( p->pMan->sError, "Line %d: Wrong number of literals in the table of node \"%s\". (Spaces inside literals are not allowed.)", Io_MvGetLine(p->pMan, pFirst), pName );
return 0;
}
// check for the ND table
nLines = nLiterals / (nInputs + nOutputs);
if ( nInputs == 0 && nLines > 1 )
{
// add the outputs to the PIs
for ( i = 0; i < nOutputs; i++ )
{
pName = Vec_PtrEntry( vTokens, Vec_PtrSize(vTokens) - nOutputs + i );
// get the net corresponding to this node
pNet = Abc_NtkFindOrCreateNet(p->pNtk, pName);
if ( fReset )
{
assert( p->pResetLatch != NULL );
// construct the reset circuit and get the reset net feeding into it
pNet = Io_MvParseAddResetCircuit( p, pName );
}
// add the new PI node
// Abc_ObjAddFanin( pNet, Abc_NtkCreatePi(p->pNtk) );
// fprintf( stdout, "Io_ReadBlifMv(): Adding PI for internal non-deterministic node \"%s\".\n", pName );
p->pMan->nNDnodes++;
Abc_ObjAddFanin( pNet, Abc_NtkCreateNodeConst0(p->pNtk) );
}
return 1;
}
// iterate through the outputs
for ( i = 0; i < nOutputs; i++ )
{
if ( !Io_MvParseLineNamesMvOne( p, vTokens, vTokens2, nInputs, nOutputs, i, fReset ) )
return 0;
}
return 1;
}
/**Function*************************************************************
Synopsis [Constructs the SOP cover from the file parsing info.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
static char * Io_MvParseTableBlif( Io_MvMod_t * p, char * pTable, int nFanins )
{
Vec_Ptr_t * vTokens = p->pMan->vTokens;
Vec_Str_t * vFunc = p->pMan->vFunc;
char * pProduct, * pOutput;
int i, Polarity = -1;
p->pMan->nTablesRead++;
// get the tokens
Io_MvSplitIntoTokens( vTokens, pTable, '.' );
if ( Vec_PtrSize(vTokens) == 0 )
return Abc_SopCreateConst0( p->pNtk->pManFunc );
if ( Vec_PtrSize(vTokens) == 1 )
{
pOutput = Vec_PtrEntry( vTokens, 0 );
if ( ((pOutput[0] - '0') & 0x8E) || pOutput[1] )
{
sprintf( p->pMan->sError, "Line %d: Constant table has wrong output value \"%s\".", Io_MvGetLine(p->pMan, pOutput), pOutput );
return NULL;
}
return pOutput[0] == '0' ? Abc_SopCreateConst0(p->pNtk->pManFunc) : Abc_SopCreateConst1(p->pNtk->pManFunc);
}
pProduct = Vec_PtrEntry( vTokens, 0 );
if ( Vec_PtrSize(vTokens) % 2 == 1 )
{
sprintf( p->pMan->sError, "Line %d: Table has odd number of tokens (%d).", Io_MvGetLine(p->pMan, pProduct), Vec_PtrSize(vTokens) );
return NULL;
}
// parse the table
Vec_StrClear( vFunc );
for ( i = 0; i < Vec_PtrSize(vTokens)/2; i++ )
{
pProduct = Vec_PtrEntry( vTokens, 2*i + 0 );
pOutput = Vec_PtrEntry( vTokens, 2*i + 1 );
if ( strlen(pProduct) != (unsigned)nFanins )
{
sprintf( p->pMan->sError, "Line %d: Cube \"%s\" has size different from the fanin count (%d).", Io_MvGetLine(p->pMan, pProduct), pProduct, nFanins );
return NULL;
}
if ( ((pOutput[0] - '0') & 0x8E) || pOutput[1] )
{
sprintf( p->pMan->sError, "Line %d: Output value \"%s\" is incorrect.", Io_MvGetLine(p->pMan, pProduct), pOutput );
return NULL;
}
if ( Polarity == -1 )
Polarity = pOutput[0] - '0';
else if ( Polarity != pOutput[0] - '0' )
{
sprintf( p->pMan->sError, "Line %d: Output value \"%s\" differs from the value in the first line of the table (%d).", Io_MvGetLine(p->pMan, pProduct), pOutput, Polarity );
return NULL;
}
// parse one product
Vec_StrAppend( vFunc, pProduct );
Vec_StrPush( vFunc, ' ' );
Vec_StrPush( vFunc, pOutput[0] );
Vec_StrPush( vFunc, '\n' );
}
Vec_StrPush( vFunc, '\0' );
return Vec_StrArray( vFunc );
}
/**Function*************************************************************
Synopsis [Parses the nodes line.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
static int Io_MvParseLineNamesBlif( Io_MvMod_t * p, char * pLine )
{
Vec_Ptr_t * vTokens = p->pMan->vTokens;
Abc_Obj_t * pNet, * pNode;
char * pName;
assert( !p->pMan->fBlifMv );
Io_MvSplitIntoTokens( vTokens, pLine, '\0' );
// parse the mapped node
if ( !strcmp(Vec_PtrEntry(vTokens,0), "gate") )
return Io_MvParseLineGateBlif( p, vTokens );
// parse the regular name line
assert( !strcmp(Vec_PtrEntry(vTokens,0), "names") );
pName = Vec_PtrEntryLast( vTokens );
pNet = Abc_NtkFindOrCreateNet( p->pNtk, pName );
if ( Abc_ObjFaninNum(pNet) > 0 )
{
sprintf( p->pMan->sError, "Line %d: Signal \"%s\" is defined more than once.", Io_MvGetLine(p->pMan, pName), pName );
return 0;
}
// create fanins
pNode = Io_ReadCreateNode( p->pNtk, pName, (char **)(vTokens->pArray + 1), Vec_PtrSize(vTokens) - 2 );
// parse the table of this node
pNode->pData = Io_MvParseTableBlif( p, pName + strlen(pName), Abc_ObjFaninNum(pNode) );
if ( pNode->pData == NULL )
return 0;
pNode->pData = Abc_SopRegister( p->pNtk->pManFunc, pNode->pData );
return 1;
}
/**Function*************************************************************
Synopsis [Duplicate the MV variable.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
Io_MvVar_t * Abc_NtkMvVarDup( Abc_Ntk_t * pNtk, Io_MvVar_t * pVar )
{
Extra_MmFlex_t * pFlex;
Io_MvVar_t * pVarDup;
int i;
if ( pVar == NULL )
return NULL;
pFlex = Abc_NtkMvVarMan( pNtk );
assert( pFlex != NULL );
pVarDup = (Io_MvVar_t *)Extra_MmFlexEntryFetch( pFlex, sizeof(Io_MvVar_t) );
pVarDup->nValues = pVar->nValues;
pVarDup->pNames = NULL;
if ( pVar->pNames == NULL )
return pVarDup;
pVarDup->pNames = (char **)Extra_MmFlexEntryFetch( pFlex, sizeof(char *) * pVar->nValues );
for ( i = 0; i < pVar->nValues; i++ )
{
pVarDup->pNames[i] = (char *)Extra_MmFlexEntryFetch( pFlex, strlen(pVar->pNames[i]) + 1 );
strcpy( pVarDup->pNames[i], pVar->pNames[i] );
}
return pVarDup;
}
#include "mio.h"
#include "main.h"
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
static char * Io_ReadBlifCleanName( char * pName )
{
int i, Length;
Length = strlen(pName);
for ( i = 0; i < Length; i++ )
if ( pName[i] == '=' )
return pName + i + 1;
return NULL;
}
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
static int Io_MvParseLineGateBlif( Io_MvMod_t * p, Vec_Ptr_t * vTokens )
{
Mio_Library_t * pGenlib;
Mio_Gate_t * pGate;
Abc_Obj_t * pNode;
char ** ppNames, * pName;
int i, nNames;
pName = vTokens->pArray[0];
// check that the library is available
pGenlib = Abc_FrameReadLibGen();
if ( pGenlib == NULL )
{
sprintf( p->pMan->sError, "Line %d: The current library is not available.", Io_MvGetLine(p->pMan, pName) );
return 0;
}
// create a new node and add it to the network
if ( vTokens->nSize < 2 )
{
sprintf( p->pMan->sError, "Line %d: The .gate line has less than two tokens.", Io_MvGetLine(p->pMan, pName) );
return 0;
}
// get the gate
pGate = Mio_LibraryReadGateByName( pGenlib, vTokens->pArray[1] );
if ( pGate == NULL )
{
sprintf( p->pMan->sError, "Line %d: Cannot find gate \"%s\" in the library.", Io_MvGetLine(p->pMan, pName), vTokens->pArray[1] );
return 0;
}
// if this is the first line with gate, update the network type
if ( Abc_NtkNodeNum(p->pNtk) == 0 )
{
assert( p->pNtk->ntkFunc == ABC_FUNC_SOP );
p->pNtk->ntkFunc = ABC_FUNC_MAP;
Extra_MmFlexStop( p->pNtk->pManFunc );
p->pNtk->pManFunc = pGenlib;
}
// remove the formal parameter names
for ( i = 2; i < vTokens->nSize; i++ )
{
vTokens->pArray[i] = Io_ReadBlifCleanName( vTokens->pArray[i] );
if ( vTokens->pArray[i] == NULL )
{
sprintf( p->pMan->sError, "Line %d: Invalid gate input assignment.", Io_MvGetLine(p->pMan, pName) );
return 0;
}
}
// create the node
ppNames = (char **)vTokens->pArray + 2;
nNames = vTokens->nSize - 3;
pNode = Io_ReadCreateNode( p->pNtk, ppNames[nNames], ppNames, nNames );
// set the pointer to the functionality of the node
Abc_ObjSetData( pNode, pGate );
return 1;
}
////////////////////////////////////////////////////////////////////////
/// END OF FILE ///
////////////////////////////////////////////////////////////////////////
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