ioa.h File Reference

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>
#include "misc/vec/vec.h"
#include "aig/aig/aig.h"

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Functions
ABC_NAMESPACE_HEADER_START Aig_Man_t *	Ioa_ReadAigerFromMemory (char *pContents, int nFileSize, int fCheck)
	INCLUDES ///.
Aig_Man_t *	Ioa_ReadAiger (char *pFileName, int fCheck)
Vec_Str_t *	Ioa_WriteAigerIntoMemoryStr (Aig_Man_t *pMan)
char *	Ioa_WriteAigerIntoMemory (Aig_Man_t *pMan, int *pnSize)
void	Ioa_WriteAiger (Aig_Man_t *pMan, char *pFileName, int fWriteSymbols, int fCompact)
int	Ioa_FileSize (char *pFileName)
	DECLARATIONS ///.
char *	Ioa_FileNameGeneric (char *FileName)
char *	Ioa_FileNameGenericAppend (char *pBase, char *pSuffix)
char *	Ioa_TimeStamp ()

Function Documentation

Ioa_FileNameGeneric()

char * Ioa_FileNameGeneric ( char * FileName )

extern

Function*************************************************************

Synopsis []

Description []

SideEffects []

SeeAlso []

Definition at line 73 of file ioaUtil.c.

{
    char * pDot, * pRes;
    pRes = Abc_UtilStrsav( FileName );
    if ( (pDot = strrchr( pRes, '.' )) )
        *pDot = 0;
    return pRes;
}

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Ioa_FileNameGenericAppend()

char * Ioa_FileNameGenericAppend ( char * pBase, char * pSuffix )

extern

Function*************************************************************

Synopsis [Returns the composite name of the file.]

Description []

SideEffects []

SeeAlso []

Definition at line 93 of file ioaUtil.c.

{
    static char Buffer[1000];
    char * pDot;
    if ( pBase == NULL )
    {
        strcpy( Buffer, pSuffix );
        return Buffer;
    }
    strcpy( Buffer, pBase );
    if ( (pDot = strrchr( Buffer, '.' )) )
        *pDot = 0;
    strcat( Buffer, pSuffix );
    // find the last occurrance of slash
    for ( pDot = Buffer + strlen(Buffer) - 1; pDot >= Buffer; pDot-- )    
        if (!((*pDot >= '0' && *pDot <= '9') ||
              (*pDot >= 'a' && *pDot <= 'z') ||
              (*pDot >= 'A' && *pDot <= 'Z') || 
               *pDot == '_' || *pDot == '.') )
               break;
    return pDot + 1;
}

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Ioa_FileSize()

int Ioa_FileSize ( char * pFileName )

extern

DECLARATIONS ///.

CFile****************************************************************

FileName [ioaUtil.c]

SystemName [ABC: Logic synthesis and verification system.]

PackageName [Command processing package.]

Synopsis [Procedures to read binary AIGER format developed by Armin Biere, Johannes Kepler University (http://fmv.jku.at/)]

Author [Alan Mishchenko]

Affiliation [UC Berkeley]

Date [Ver. 1.0. Started - December 16, 2006.]

Revision [

Id

ioaUtil.c,v 1.00 2006/12/16 00:00:00 alanmi Exp

] FUNCTION DEFINITIONS /// Function*************************************************************

Synopsis [Returns the file size.]

Description [The file should be closed.]

SideEffects []

SeeAlso []

Definition at line 46 of file ioaUtil.c.

{
    FILE * pFile;
    int nFileSize;
    pFile = fopen( pFileName, "r" );
    if ( pFile == NULL )
    {
        printf( "Ioa_FileSize(): The file is unavailable (absent or open).\n" );
        return 0;
    }
    fseek( pFile, 0, SEEK_END );  
    nFileSize = ftell( pFile ); 
    fclose( pFile );
    return nFileSize;
}

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Ioa_ReadAiger()

Aig_Man_t * Ioa_ReadAiger ( char * pFileName, int fCheck )

extern

Function*************************************************************

Synopsis [Reads the AIG in the binary AIGER format.]

Description []

SideEffects []

SeeAlso []

Definition at line 431 of file ioaReadAig.c.

{
    FILE * pFile;
    Aig_Man_t * pNew;
    char * pName, * pContents;
    int nFileSize, RetValue;
 
    // read the file into the buffer
    nFileSize = Ioa_FileSize( pFileName );
    pFile = fopen( pFileName, "rb" );
    pContents = ABC_CALLOC( char, nFileSize+1 );
    RetValue = fread( pContents, nFileSize, 1, pFile );
    fclose( pFile );
 
    pNew = Ioa_ReadAigerFromMemory( pContents, nFileSize, fCheck );
    ABC_FREE( pContents );
    if ( pNew )
    {
        pName = Ioa_FileNameGeneric( pFileName );
        ABC_FREE( pNew->pName );
        pNew->pName = Abc_UtilStrsav( pName );
        pNew->pSpec = Abc_UtilStrsav( pFileName );
        ABC_FREE( pName );
    }
    return pNew;
}

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Ioa_ReadAigerFromMemory()

ABC_NAMESPACE_HEADER_START Aig_Man_t * Ioa_ReadAigerFromMemory ( char * pContents, int nFileSize, int fCheck )

extern

INCLUDES ///.

CFile****************************************************************

FileName [ioa.h]

SystemName [ABC: Logic synthesis and verification system.]

PackageName [AIG package.]

Synopsis [External declarations.]

Author [Alan Mishchenko]

Affiliation [UC Berkeley]

Date [Ver. 1.0. Started - April 28, 2007.]

Revision [

Id

ioa.h,v 1.00 2007/04/28 00:00:00 alanmi Exp

] PARAMETERS /// BASIC TYPES /// MACRO DEFINITIONS /// ITERATORS /// FUNCTION DECLARATIONS ///

Function*************************************************************

Synopsis [Reads the AIG in from the memory buffer.]

Description [The buffer constains the AIG in AIGER format. The size gives the number of bytes in the buffer. The buffer is allocated by the user and not deallocated by this procedure.]

SideEffects []

SeeAlso []

Definition at line 105 of file ioaReadAig.c.

{
    Vec_Int_t * vLits = NULL;
    Vec_Ptr_t * vNodes, * vDrivers;//, * vTerms;
    Aig_Obj_t * pObj, * pNode0, * pNode1;
    Aig_Man_t * pNew;
    int nTotal, nInputs, nOutputs, nLatches, nAnds, i;//, iTerm, nDigits;
    int nBad = 0, nConstr = 0, nJust = 0, nFair = 0;
    char * pDrivers, * pSymbols, * pCur;//, * pType;
    unsigned uLit0, uLit1, uLit;
 
    // check if the input file format is correct
    if ( strncmp(pContents, "aig", 3) != 0 || (pContents[3] != ' ' && pContents[3] != '2') )
    {
        fprintf( stdout, "Wrong input file format.\n" );
        return NULL;
    }
 
    // read the parameters (M I L O A + B C J F)
    pCur = pContents;         while ( *pCur != ' ' ) pCur++; pCur++;
    // read the number of objects
    nTotal = atoi( pCur );    while ( *pCur != ' ' ) pCur++; pCur++;
    // read the number of inputs
    nInputs = atoi( pCur );   while ( *pCur != ' ' ) pCur++; pCur++;
    // read the number of latches
    nLatches = atoi( pCur );  while ( *pCur != ' ' ) pCur++; pCur++;
    // read the number of outputs
    nOutputs = atoi( pCur );  while ( *pCur != ' ' ) pCur++; pCur++;
    // read the number of nodes
    nAnds = atoi( pCur );     while ( *pCur != ' ' && *pCur != '\n' ) pCur++; 
    if ( *pCur == ' ' )
    {
        assert( nOutputs == 0 );
        // read the number of properties
        pCur++;
        nBad = atoi( pCur );     while ( *pCur != ' ' && *pCur != '\n' ) pCur++; 
        nOutputs += nBad;
    }
    if ( *pCur == ' ' )
    {
        // read the number of properties
        pCur++;
        nConstr = atoi( pCur );     while ( *pCur != ' ' && *pCur != '\n' ) pCur++; 
        nOutputs += nConstr;
    }
    if ( *pCur == ' ' )
    {
        // read the number of properties
        pCur++;
        nJust = atoi( pCur );     while ( *pCur != ' ' && *pCur != '\n' ) pCur++; 
        nOutputs += nJust;
    }
    if ( *pCur == ' ' )
    {
        // read the number of properties
        pCur++;
        nFair = atoi( pCur );     while ( *pCur != ' ' && *pCur != '\n' ) pCur++; 
        nOutputs += nFair;
    }
    if ( *pCur != '\n' )
    {
        fprintf( stdout, "The parameter line is in a wrong format.\n" );
        return NULL;
    }
    pCur++;
 
    // check the parameters
    if ( nTotal != nInputs + nLatches + nAnds )
    {
        fprintf( stdout, "The number of objects does not match.\n" );
        return NULL;
    }
    if ( nJust || nFair )
    {
        fprintf( stdout, "Reading AIGER files with liveness properties are currently not supported.\n" );
        return NULL;
    }
 
    if ( nConstr )
    {
        if ( nConstr == 1 )
            fprintf( stdout, "Warning: The last output is interpreted as a constraint.\n" );
        else
            fprintf( stdout, "Warning: The last %d outputs are interpreted as constraints.\n", nConstr );
    }
 
    // allocate the empty AIG
    pNew = Aig_ManStart( nAnds );
    pNew->nConstrs = nConstr;
 
    // prepare the array of nodes
    vNodes = Vec_PtrAlloc( 1 + nInputs + nLatches + nAnds );
    Vec_PtrPush( vNodes, Aig_ManConst0(pNew) );
 
    // create the PIs
    for ( i = 0; i < nInputs + nLatches; i++ )
    {
        pObj = Aig_ObjCreateCi(pNew);    
        Vec_PtrPush( vNodes, pObj );
    }
/*
    // create the POs
    for ( i = 0; i < nOutputs + nLatches; i++ )
    {
        pObj = Aig_ObjCreateCo(pNew);   
    }
*/
    // create the latches
    pNew->nRegs = nLatches;
/*
    nDigits = Ioa_Base10Log( nLatches );
    for ( i = 0; i < nLatches; i++ )
    {
        pObj = Aig_ObjCreateLatch(pNew);
        Aig_LatchSetInit0( pObj );
        pNode0 = Aig_ObjCreateBi(pNew);
        pNode1 = Aig_ObjCreateBo(pNew);
        Aig_ObjAddFanin( pObj, pNode0 );
        Aig_ObjAddFanin( pNode1, pObj );
        Vec_PtrPush( vNodes, pNode1 );
        // assign names to latch and its input
//        Aig_ObjAssignName( pObj, Aig_ObjNameDummy("_L", i, nDigits), NULL );
//        printf( "Creating latch %s with input %d and output %d.\n", Aig_ObjName(pObj), pNode0->Id, pNode1->Id );
    } 
*/ 
 
    // remember the beginning of latch/PO literals
    pDrivers = pCur;
    if ( pContents[3] == ' ' ) // standard AIGER
    {
        // scroll to the beginning of the binary data
        for ( i = 0; i < nLatches + nOutputs; )
            if ( *pCur++ == '\n' )
                i++;
    }
    else // modified AIGER
    {
        vLits = Ioa_WriteDecodeLiterals( &pCur, nLatches + nOutputs );
    }
 
    // create the AND gates
//    pProgress = Bar_ProgressStart( stdout, nAnds );
    for ( i = 0; i < nAnds; i++ )
    {
//        Bar_ProgressUpdate( pProgress, i, NULL );
        uLit = ((i + 1 + nInputs + nLatches) << 1);
        uLit1 = uLit  - Ioa_ReadAigerDecode( &pCur );
        uLit0 = uLit1 - Ioa_ReadAigerDecode( &pCur );
//        assert( uLit1 > uLit0 );
        pNode0 = Aig_NotCond( (Aig_Obj_t *)Vec_PtrEntry(vNodes, uLit0 >> 1), uLit0 & 1 );
        pNode1 = Aig_NotCond( (Aig_Obj_t *)Vec_PtrEntry(vNodes, uLit1 >> 1), uLit1 & 1 );
        assert( Vec_PtrSize(vNodes) == i + 1 + nInputs + nLatches );
        Vec_PtrPush( vNodes, Aig_And(pNew, pNode0, pNode1) );
    }
//    Bar_ProgressStop( pProgress );
 
    // remember the place where symbols begin
    pSymbols = pCur;
 
    // read the latch driver literals
    vDrivers = Vec_PtrAlloc( nLatches + nOutputs );
    if ( pContents[3] == ' ' ) // standard AIGER
    {
        pCur = pDrivers;
        for ( i = 0; i < nLatches; i++ )
        {
            uLit0 = atoi( pCur );  while ( *pCur++ != '\n' );
            pNode0 = Aig_NotCond( (Aig_Obj_t *)Vec_PtrEntry(vNodes, uLit0 >> 1), (uLit0 & 1) );//^ (uLit0 < 2) );
            Vec_PtrPush( vDrivers, pNode0 );
        }
        // read the PO driver literals
        for ( i = 0; i < nOutputs; i++ )
        {
            uLit0 = atoi( pCur );  while ( *pCur++ != '\n' );
            pNode0 = Aig_NotCond( (Aig_Obj_t *)Vec_PtrEntry(vNodes, uLit0 >> 1), (uLit0 & 1) );//^ (uLit0 < 2) );
            Vec_PtrPush( vDrivers, pNode0 );
        }
 
    }
    else
    {
        // read the latch driver literals
        for ( i = 0; i < nLatches; i++ )
        {
            uLit0 = Vec_IntEntry( vLits, i );
            pNode0 = Aig_NotCond( (Aig_Obj_t *)Vec_PtrEntry(vNodes, uLit0 >> 1), (uLit0 & 1) );//^ (uLit0 < 2) );
            Vec_PtrPush( vDrivers, pNode0 );
        }
        // read the PO driver literals
        for ( i = 0; i < nOutputs; i++ )
        {
            uLit0 = Vec_IntEntry( vLits, i+nLatches );
            pNode0 = Aig_NotCond( (Aig_Obj_t *)Vec_PtrEntry(vNodes, uLit0 >> 1), (uLit0 & 1) );//^ (uLit0 < 2) );
            Vec_PtrPush( vDrivers, pNode0 );
        }
        Vec_IntFree( vLits );
    }
 
    // create the POs
    for ( i = 0; i < nOutputs; i++ )
        Aig_ObjCreateCo( pNew, (Aig_Obj_t *)Vec_PtrEntry(vDrivers, nLatches + i) );
    for ( i = 0; i < nLatches; i++ )
        Aig_ObjCreateCo( pNew, (Aig_Obj_t *)Vec_PtrEntry(vDrivers, i) );
    Vec_PtrFree( vDrivers );
 
/*
    // read the names if present
    pCur = pSymbols;
    if ( *pCur != 'c' )
    {
        int Counter = 0;
        while ( pCur < pContents + nFileSize && *pCur != 'c' )
        {
            // get the terminal type
            pType = pCur;
            if ( *pCur == 'i' )
                vTerms = pNew->vPis;
            else if ( *pCur == 'l' )
                vTerms = pNew->vBoxes;
            else if ( *pCur == 'o' )
                vTerms = pNew->vPos;
            else
            {
                fprintf( stdout, "Wrong terminal type.\n" );
                return NULL;
            }
            // get the terminal number
            iTerm = atoi( ++pCur );  while ( *pCur++ != ' ' );
            // get the node
            if ( iTerm >= Vec_PtrSize(vTerms) )
            {
                fprintf( stdout, "The number of terminal is out of bound.\n" );
                return NULL;
            }
            pObj = Vec_PtrEntry( vTerms, iTerm );
            if ( *pType == 'l' )
                pObj = Aig_ObjFanout0(pObj);
            // assign the name
            pName = pCur;          while ( *pCur++ != '\n' );
            // assign this name 
            *(pCur-1) = 0;
            Aig_ObjAssignName( pObj, pName, NULL );
            if ( *pType == 'l' )
            {
                Aig_ObjAssignName( Aig_ObjFanin0(pObj), Aig_ObjName(pObj), "L" );
                Aig_ObjAssignName( Aig_ObjFanin0(Aig_ObjFanin0(pObj)), Aig_ObjName(pObj), "_in" );
            }
            // mark the node as named
            pObj->pCopy = (Aig_Obj_t *)Aig_ObjName(pObj);
        } 
 
        // assign the remaining names
        Aig_ManForEachCi( pNew, pObj, i )
        {
            if ( pObj->pCopy ) continue;
            Aig_ObjAssignName( pObj, Aig_ObjName(pObj), NULL );
            Counter++;
        }
        Aig_ManForEachLatchOutput( pNew, pObj, i )
        {
            if ( pObj->pCopy ) continue;
            Aig_ObjAssignName( pObj, Aig_ObjName(pObj), NULL );
            Aig_ObjAssignName( Aig_ObjFanin0(pObj), Aig_ObjName(pObj), "L" );
            Aig_ObjAssignName( Aig_ObjFanin0(Aig_ObjFanin0(pObj)), Aig_ObjName(pObj), "_in" );
            Counter++;
        }
        Aig_ManForEachCo( pNew, pObj, i )
        {
            if ( pObj->pCopy ) continue;
            Aig_ObjAssignName( pObj, Aig_ObjName(pObj), NULL );
            Counter++;
        }
        if ( Counter )
            printf( "Ioa_ReadAiger(): Added %d default names for nameless I/O/register objects.\n", Counter );
    }
    else
    {
//        printf( "Ioa_ReadAiger(): I/O/register names are not given. Generating short names.\n" );
        Aig_ManShortNames( pNew );
    }
*/
    pCur = pSymbols;
    if ( pCur + 1 < pContents + nFileSize && *pCur == 'c' )
    {
        pCur++;
        if ( *pCur == 'n' )
        {
            pCur++;
            // read model name
            ABC_FREE( pNew->pName );
            pNew->pName = Abc_UtilStrsav( pCur );
        }
    }
 
    // skipping the comments
    Vec_PtrFree( vNodes );
 
    // remove the extra nodes
    Aig_ManCleanup( pNew );
    Aig_ManSetRegNum( pNew, Aig_ManRegNum(pNew) );
 
    // update polarity of the additional outputs
    if ( nBad || nConstr || nJust || nFair )
        Aig_ManInvertConstraints( pNew );
 
    // check the result
    if ( fCheck && !Aig_ManCheck( pNew ) )
    {
        printf( "Ioa_ReadAiger: The network check has failed.\n" );
        Aig_ManStop( pNew );
        return NULL;
    }
    return pNew;
}

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Ioa_TimeStamp()

char * Ioa_TimeStamp ( )

extern

Function*************************************************************

Synopsis [Returns the time stamp.]

Description [The file should be closed.]

SideEffects []

SeeAlso []

Definition at line 127 of file ioaUtil.c.

{
    static char Buffer[100];
    char * TimeStamp;
    time_t ltime;
    // get the current time
    time( &ltime );
    TimeStamp = asctime( localtime( &ltime ) );
    TimeStamp[ strlen(TimeStamp) - 1 ] = 0;
    strcpy( Buffer, TimeStamp );
    return Buffer;
}

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Ioa_WriteAiger()

void Ioa_WriteAiger ( Aig_Man_t * pMan, char * pFileName, int fWriteSymbols, int fCompact )

extern

Function*************************************************************

Synopsis [Writes the AIG in the binary AIGER format.]

Description []

SideEffects []

SeeAlso []

Definition at line 446 of file ioaWriteAig.c.

{
//    Bar_Progress_t * pProgress;
    FILE * pFile;
    Aig_Obj_t * pObj, * pDriver;
    int i, nNodes, nBufferSize, Pos;
    unsigned char * pBuffer;
    unsigned uLit0, uLit1, uLit;
 
    if ( Aig_ManCoNum(pMan) == 0 )
    {
        printf( "AIG cannot be written because it has no POs.\n" );
        return;
    }
 
//    assert( Aig_ManIsStrash(pMan) );
    // start the output stream
    pFile = fopen( pFileName, "wb" );
    if ( pFile == NULL )
    {
        fprintf( stdout, "Ioa_WriteAiger(): Cannot open the output file \"%s\".\n", pFileName );
        return;
    }
/*
    Aig_ManForEachLatch( pMan, pObj, i )
        if ( !Aig_LatchIsInit0(pObj) )
        {
            fprintf( stdout, "Ioa_WriteAiger(): Cannot write AIGER format with non-0 latch init values. Run \"zero\".\n" );
            return;
        }
*/
    // set the node numbers to be used in the output file
    nNodes = 0;
    Ioa_ObjSetAigerNum( Aig_ManConst1(pMan), nNodes++ );
    Aig_ManForEachCi( pMan, pObj, i )
        Ioa_ObjSetAigerNum( pObj, nNodes++ );
    Aig_ManForEachNode( pMan, pObj, i )
        Ioa_ObjSetAigerNum( pObj, nNodes++ );
 
    // write the header "M I L O A" where M = I + L + A
    fprintf( pFile, "aig%s %u %u %u %u %u", 
        fCompact? "2" : "",
        Aig_ManCiNum(pMan) + Aig_ManNodeNum(pMan), 
        Aig_ManCiNum(pMan) - Aig_ManRegNum(pMan),
        Aig_ManRegNum(pMan),
        Aig_ManConstrNum(pMan) ? 0 : Aig_ManCoNum(pMan) - Aig_ManRegNum(pMan),
        Aig_ManNodeNum(pMan) );
    // write the extended header "B C J F"
    if ( Aig_ManConstrNum(pMan) )
        fprintf( pFile, " %u %u", Aig_ManCoNum(pMan) - Aig_ManRegNum(pMan) - Aig_ManConstrNum(pMan), Aig_ManConstrNum(pMan) );
    fprintf( pFile, "\n" ); 
 
    // if the driver node is a constant, we need to complement the literal below
    // because, in the AIGER format, literal 0/1 is represented as number 0/1
    // while, in ABC, constant 1 node has number 0 and so literal 0/1 will be 1/0
 
    Aig_ManInvertConstraints( pMan );
    if ( !fCompact ) 
    {
        // write latch drivers
        Aig_ManForEachLiSeq( pMan, pObj, i )
        {
            pDriver = Aig_ObjFanin0(pObj);
            fprintf( pFile, "%u\n", Ioa_ObjMakeLit( Ioa_ObjAigerNum(pDriver), Aig_ObjFaninC0(pObj) ^ (Ioa_ObjAigerNum(pDriver) == 0) ) );
        }
 
        // write PO drivers
        Aig_ManForEachPoSeq( pMan, pObj, i )
        {
            pDriver = Aig_ObjFanin0(pObj);
            fprintf( pFile, "%u\n", Ioa_ObjMakeLit( Ioa_ObjAigerNum(pDriver), Aig_ObjFaninC0(pObj) ^ (Ioa_ObjAigerNum(pDriver) == 0) ) );
        }
    }
    else
    {
        Vec_Int_t * vLits = Ioa_WriteAigerLiterals( pMan );
        Vec_Str_t * vBinary = Ioa_WriteEncodeLiterals( vLits );
        fwrite( Vec_StrArray(vBinary), 1, Vec_StrSize(vBinary), pFile );
        Vec_StrFree( vBinary );
        Vec_IntFree( vLits );
    }
    Aig_ManInvertConstraints( pMan );
 
    // write the nodes into the buffer
    Pos = 0;
    nBufferSize = 6 * Aig_ManNodeNum(pMan) + 100; // skeptically assuming 3 chars per one AIG edge
    pBuffer = ABC_ALLOC( unsigned char, nBufferSize );
//    pProgress = Bar_ProgressStart( stdout, Aig_ManObjNumMax(pMan) );
    Aig_ManForEachNode( pMan, pObj, i )
    {
//        Bar_ProgressUpdate( pProgress, i, NULL );
        uLit  = Ioa_ObjMakeLit( Ioa_ObjAigerNum(pObj), 0 );
        uLit0 = Ioa_ObjMakeLit( Ioa_ObjAigerNum(Aig_ObjFanin0(pObj)), Aig_ObjFaninC0(pObj) );
        uLit1 = Ioa_ObjMakeLit( Ioa_ObjAigerNum(Aig_ObjFanin1(pObj)), Aig_ObjFaninC1(pObj) );
        assert( uLit0 != uLit1 );
        if ( uLit0 > uLit1 )
        {
            int Temp = uLit0;
            uLit0 = uLit1;
            uLit1 = Temp;
        }
        Pos = Ioa_WriteAigerEncode( pBuffer, Pos, uLit  - uLit1 );
        Pos = Ioa_WriteAigerEncode( pBuffer, Pos, uLit1 - uLit0 );
        if ( Pos > nBufferSize - 10 )
        {
            printf( "Ioa_WriteAiger(): AIGER generation has failed because the allocated buffer is too small.\n" );
            fclose( pFile );
            return;
        }
    }
    assert( Pos < nBufferSize );
//    Bar_ProgressStop( pProgress );
 
    // write the buffer
    fwrite( pBuffer, 1, Pos, pFile );
    ABC_FREE( pBuffer );
/*
    // write the symbol table
    if ( fWriteSymbols )
    {
        int bads;
        // write PIs
        Aig_ManForEachPiSeq( pMan, pObj, i )
            fprintf( pFile, "i%d %s\n", i, Aig_ObjName(pObj) );
        // write latches
        Aig_ManForEachLoSeq( pMan, pObj, i )
            fprintf( pFile, "l%d %s\n", i, Aig_ObjName(Aig_ObjFanout0(pObj)) );
        // write POs
        bads = Aig_ManCoNum(pMan) - Aig_ManRegNum(pMan) - Aig_ManConstrNum(pMan);
        Aig_ManForEachPoSeq( pMan, pObj, i )
            if ( !Aig_ManConstrNum(pMan) )
                fprintf( pFile, "o%d %s\n", i, Aig_ObjName(pObj) );
            else if ( i < bads )
                fprintf( pFile, "b%d %s\n", i, Aig_ObjName(pObj) );
            else
                fprintf( pFile, "c%d %s\n", i - bads, Aig_ObjName(pObj) );
    }
*/
    // write the comment
    fprintf( pFile, "c" );
    if ( pMan->pName )
        fprintf( pFile, "n%s%c", pMan->pName, '\0' );
    fprintf( pFile, "\nThis file was produced by the IOA package in ABC on %s\n", Ioa_TimeStamp() );
    fprintf( pFile, "For information about AIGER format, refer to %s\n", "http://fmv.jku.at/aiger" );
    fclose( pFile );
}

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Ioa_WriteAigerIntoMemory()

char * Ioa_WriteAigerIntoMemory ( Aig_Man_t * pMan, int * pnSize )

extern

Function*************************************************************

Synopsis [Writes the AIG in into the memory buffer.]

Description [The resulting buffer constains the AIG in AIGER format. The returned size (pnSize) gives the number of bytes in the buffer. The resulting buffer should be deallocated by the user.]

SideEffects []

SeeAlso []

Definition at line 376 of file ioaWriteAig.c.

{
    char * pBuffer;
    Vec_Str_t * vBuffer;
    vBuffer = Ioa_WriteAigerIntoMemoryStr( pMan );
    if ( pMan->pName )
    {
        Vec_StrPrintStr( vBuffer, "n" );
        Vec_StrPrintStr( vBuffer, pMan->pName );
        Vec_StrPush( vBuffer, 0 );
    }
    // prepare the return values
    *pnSize = Vec_StrSize( vBuffer );
    pBuffer = Vec_StrReleaseArray( vBuffer );
    Vec_StrFree( vBuffer );
    return pBuffer;
}

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Ioa_WriteAigerIntoMemoryStr()

Vec_Str_t * Ioa_WriteAigerIntoMemoryStr ( Aig_Man_t * pMan )

extern

Function*************************************************************

Synopsis [Writes the AIG in into the memory buffer.]

Description [The resulting buffer constains the AIG in AIGER format. The returned size (pnSize) gives the number of bytes in the buffer. The resulting buffer should be deallocated by the user.]

SideEffects []

SeeAlso []

Definition at line 286 of file ioaWriteAig.c.

{
    Vec_Str_t * vBuffer;
    Aig_Obj_t * pObj, * pDriver;
    int nNodes, i, uLit, uLit0, uLit1; 
    // set the node numbers to be used in the output file
    nNodes = 0;
    Ioa_ObjSetAigerNum( Aig_ManConst1(pMan), nNodes++ );
    Aig_ManForEachCi( pMan, pObj, i )
        Ioa_ObjSetAigerNum( pObj, nNodes++ );
    Aig_ManForEachNode( pMan, pObj, i )
        Ioa_ObjSetAigerNum( pObj, nNodes++ );
 
    // write the header "M I L O A" where M = I + L + A
/*
    fprintf( pFile, "aig%s %u %u %u %u %u\n", 
        fCompact? "2" : "",
        Aig_ManCiNum(pMan) + Aig_ManNodeNum(pMan), 
        Aig_ManCiNum(pMan) - Aig_ManRegNum(pMan),
        Aig_ManRegNum(pMan),
        Aig_ManCoNum(pMan) - Aig_ManRegNum(pMan),
        Aig_ManNodeNum(pMan) );
*/
    vBuffer = Vec_StrAlloc( 3*Aig_ManObjNum(pMan) );
    Vec_StrPrintStr( vBuffer, "aig " );
    Vec_StrPrintNum( vBuffer, Aig_ManCiNum(pMan) + Aig_ManNodeNum(pMan) );
    Vec_StrPrintStr( vBuffer, " " );
    Vec_StrPrintNum( vBuffer, Aig_ManCiNum(pMan) - Aig_ManRegNum(pMan) );
    Vec_StrPrintStr( vBuffer, " " );
    Vec_StrPrintNum( vBuffer, Aig_ManRegNum(pMan) );
    Vec_StrPrintStr( vBuffer, " " );
    Vec_StrPrintNum( vBuffer, Aig_ManCoNum(pMan) - Aig_ManRegNum(pMan) );
    Vec_StrPrintStr( vBuffer, " " );
    Vec_StrPrintNum( vBuffer, Aig_ManNodeNum(pMan) );
    Vec_StrPrintStr( vBuffer, "\n" );
 
    // write latch drivers
    Aig_ManForEachLiSeq( pMan, pObj, i )
    {
        pDriver = Aig_ObjFanin0(pObj);
        uLit    = Ioa_ObjMakeLit( Ioa_ObjAigerNum(pDriver), Aig_ObjFaninC0(pObj) ^ (Ioa_ObjAigerNum(pDriver) == 0) );
//        fprintf( pFile, "%u\n", uLit );
        Vec_StrPrintNum( vBuffer, uLit );
        Vec_StrPrintStr( vBuffer, "\n" );
    }
 
    // write PO drivers
    Aig_ManForEachPoSeq( pMan, pObj, i )
    {
        pDriver = Aig_ObjFanin0(pObj);
        uLit    = Ioa_ObjMakeLit( Ioa_ObjAigerNum(pDriver), Aig_ObjFaninC0(pObj) ^ (Ioa_ObjAigerNum(pDriver) == 0) );
//        fprintf( pFile, "%u\n", uLit );
        Vec_StrPrintNum( vBuffer, uLit );
        Vec_StrPrintStr( vBuffer, "\n" );
    }
    // write the nodes into the buffer
    Aig_ManForEachNode( pMan, pObj, i )
    {
        uLit  = Ioa_ObjMakeLit( Ioa_ObjAigerNum(pObj), 0 );
        uLit0 = Ioa_ObjMakeLit( Ioa_ObjAigerNum(Aig_ObjFanin0(pObj)), Aig_ObjFaninC0(pObj) );
        uLit1 = Ioa_ObjMakeLit( Ioa_ObjAigerNum(Aig_ObjFanin1(pObj)), Aig_ObjFaninC1(pObj) );
        assert( uLit0 != uLit1 );
        if ( uLit0 > uLit1 )
        {
            int Temp = uLit0;
            uLit0 = uLit1;
            uLit1 = Temp;
        }
//        Pos = Ioa_WriteAigerEncode( pBuffer, Pos, uLit  - uLit1 );
//        Pos = Ioa_WriteAigerEncode( pBuffer, Pos, uLit1 - uLit0 );
        Ioa_WriteAigerEncodeStr( vBuffer, uLit  - uLit1 );
        Ioa_WriteAigerEncodeStr( vBuffer, uLit1 - uLit0 );
    }
    Vec_StrPrintStr( vBuffer, "c" );
    return vBuffer;
}

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