ioReadBblif.c File Reference

#include "ioAbc.h"
#include "bool/dec/dec.h"
#include "misc/bbl/bblif.h"

Go to the source code of this file.

Functions
ABC_NAMESPACE_IMPL_START Abc_Ntk_t *	Bbl_ManToAbc (Bbl_Man_t *p)
	DECLARATIONS ///. More...
void	Bbl_ManDfs_rec (Bbl_Obj_t *pObj, Vec_Ptr_t *vNodes)
Vec_Ptr_t *	Bbl_ManDfs (Bbl_Man_t *p)
Abc_Ntk_t *	Bbl_ManToAig (Bbl_Man_t *p)
void	Bbl_ManVerify (Abc_Ntk_t *pNtk1, Abc_Ntk_t *pNtk2)
void	Bbl_ManTest (Abc_Ntk_t *pNtk)
Abc_Ntk_t *	Io_ReadBblif (char *pFileName, int fCheck)

Function Documentation

Vec_Ptr_t* Bbl_ManDfs

(

Bbl_Man_t *

p

)

Fnction*************************************************************

Synopsis [Collects internal nodes in the DFS order.]

Description []

SideEffects []

SeeAlso []

Definition at line 128 of file ioReadBblif.c.

{
    Vec_Ptr_t * vNodes;
    Bbl_Obj_t * pObj;
    vNodes = Vec_PtrAlloc( 1000 );
    Bbl_ManForEachObj( p, pObj )
        if ( Bbl_ObjIsLut(pObj) )
            Bbl_ManDfs_rec( pObj, vNodes );
    return vNodes;
}

void Bbl_ManDfs_rec	(	Bbl_Obj_t *	pObj,
		Vec_Ptr_t *	vNodes
	)

Fnction*************************************************************

Synopsis [Collects internal nodes in the DFS order.]

Description []

SideEffects []

SeeAlso []

Definition at line 103 of file ioReadBblif.c.

{
    extern void Bbl_ObjMark( Bbl_Obj_t * p );
    extern int  Bbl_ObjIsMarked( Bbl_Obj_t * p );
    Bbl_Obj_t * pFanin;
    if ( Bbl_ObjIsMarked(pObj) || Bbl_ObjIsInput(pObj) )
        return;
    Bbl_ObjForEachFanin( pObj, pFanin )
        Bbl_ManDfs_rec( pFanin, vNodes );
    assert( !Bbl_ObjIsMarked(pObj) ); // checks if acyclic
    Bbl_ObjMark( pObj );
    Vec_PtrPush( vNodes, pObj );
}

void Bbl_ManTest

(

Abc_Ntk_t *

pNtk

)

Fnction*************************************************************

Synopsis [Performs testing of the new manager.]

Description []

SideEffects []

SeeAlso []

Definition at line 267 of file ioReadBblif.c.

{
    extern Bbl_Man_t * Bbl_ManFromAbc( Abc_Ntk_t * pNtk );

    Abc_Ntk_t * pNtkNew;
    Bbl_Man_t * p, * pNew;
    char * pFileName = "test.bblif";
    abctime clk, clk1, clk2, clk3, clk4, clk5;
clk = Abc_Clock();
    p = Bbl_ManFromAbc( pNtk );
    Bbl_ManPrintStats( p );
clk1 = Abc_Clock() - clk;
//Bbl_ManDumpBlif( p, "test_bbl.blif" );

    // write into file and back
clk = Abc_Clock();
    Bbl_ManDumpBinaryBlif( p, pFileName );
clk2 = Abc_Clock() - clk;

    // read from file
clk = Abc_Clock();
    pNew = Bbl_ManReadBinaryBlif( pFileName );
    Bbl_ManStop( p ); p = pNew;
clk3 = Abc_Clock() - clk;

    // generate ABC network
clk = Abc_Clock();
    pNtkNew = Bbl_ManToAig( p );
//    pNtkNew = Bbl_ManToAbc( p );
    Bbl_ManStop( p );
clk4 = Abc_Clock() - clk;

    // equivalence check
clk = Abc_Clock();
//    Bbl_ManVerify( pNtk, pNtkNew );
    Abc_NtkDelete( pNtkNew );
clk5 = Abc_Clock() - clk;

printf( "Runtime stats:\n" );
ABC_PRT( "ABC to Man", clk1 );
ABC_PRT( "Writing   ", clk2 );
ABC_PRT( "Reading   ", clk3 );
ABC_PRT( "Man to ABC", clk4 );
ABC_PRT( "Verify    ", clk5 );
}

ABC_NAMESPACE_IMPL_START Abc_Ntk_t* Bbl_ManToAbc

(

Bbl_Man_t *

p

)

DECLARATIONS ///.

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

FileName [ioReadBblif.c]

SystemName [ABC: Logic synthesis and verification system.]

PackageName [Command processing package.]

Synopsis [Procedures to read AIG in the binary format.]

Author [Alan Mishchenko]

Affiliation [UC Berkeley]

Date [Ver. 1.0. Started - June 20, 2005.]

Revision [

Id:

ioReadBblif.c,v 1.00 2005/06/20 00:00:00 alanmi Exp

]FUNCTION DEFINITIONS /// Fnction*************************************************************

Synopsis [Constructs ABC network from the manager.]

Description [The ABC network is started, as well as the array vCopy, which will map the new ID of each object in the BBLIF manager into the ponter ot the corresponding object in the ABC. For each internal node, determined by Bbl_ObjIsLut(), the SOP representation is created by retrieving the SOP representation of the BBLIF object. Finally, the objects are connected using fanin/fanout creation, and the dummy names are assigned because ABC requires each CI/CO to have a name.]

SideEffects []

SeeAlso []

Definition at line 55 of file ioReadBblif.c.

{
    Abc_Ntk_t * pNtk;
    Abc_Obj_t * pObjNew;
    Bbl_Obj_t * pObj, * pFanin;
    Vec_Ptr_t * vCopy;
    // start the network
    pNtk = Abc_NtkAlloc( ABC_NTK_LOGIC, ABC_FUNC_SOP, 1 );
    pNtk->pName = Extra_UtilStrsav( Bbl_ManName(p) );
    // create objects
    vCopy = Vec_PtrStart( 1000 );
    Bbl_ManForEachObj( p, pObj )
    {
        if ( Bbl_ObjIsInput(pObj) )
            pObjNew = Abc_NtkCreatePi( pNtk );
        else if ( Bbl_ObjIsOutput(pObj) )
            pObjNew = Abc_NtkCreatePo( pNtk );
        else if ( Bbl_ObjIsLut(pObj) )
            pObjNew = Abc_NtkCreateNode( pNtk );
        else assert( 0 );
        if ( Bbl_ObjIsLut(pObj) )
            pObjNew->pData = Abc_SopRegister( (Mem_Flex_t *)pNtk->pManFunc, Bbl_ObjSop(p, pObj) );
        Vec_PtrSetEntry( vCopy, Bbl_ObjId(pObj), pObjNew );
    }
    // connect objects
    Bbl_ManForEachObj( p, pObj )
        Bbl_ObjForEachFanin( pObj, pFanin )
            Abc_ObjAddFanin( (Abc_Obj_t *)Vec_PtrEntry(vCopy, Bbl_ObjId(pObj)), (Abc_Obj_t *)Vec_PtrEntry(vCopy, Bbl_ObjId(pFanin)) );
    // finalize
    Vec_PtrFree( vCopy );
    Abc_NtkAddDummyPiNames( pNtk );
    Abc_NtkAddDummyPoNames( pNtk );
    if ( !Abc_NtkCheck( pNtk ) )
        printf( "Bbl_ManToAbc(): Network check has failed.\n" );
    return pNtk;
}

Abc_Ntk_t* Bbl_ManToAig

(

Bbl_Man_t *

p

)

Fnction*************************************************************

Synopsis [Constructs AIG in ABC from the manager.]

Description [The ABC network is started, as well as the array vCopy, which will map the new ID of each object in the BBLIF manager into the ponter ot the corresponding AIG object in the ABC. For each internal node in a topological oder the AIG representation is created by factoring the SOP representation of the BBLIF object. Finally, the CO objects are created, and the dummy names are assigned because ABC requires each CI/CO to have a name.]

SideEffects []

SeeAlso []

Definition at line 156 of file ioReadBblif.c.

{
    extern int Bbl_ManFncSize( Bbl_Man_t * p );
    extern int Bbl_ObjFncHandle( Bbl_Obj_t * p );
    extern Abc_Obj_t * Dec_GraphToAig( Abc_Ntk_t * pNtk, Dec_Graph_t * pFForm, Vec_Ptr_t * vFaninAigs );
    int fVerbose = 0;
    Abc_Ntk_t * pNtk;
    Abc_Obj_t * pObjNew;
    Bbl_Obj_t * pObj, * pFanin;
    Vec_Ptr_t * vCopy, * vNodes, * vFaninAigs;
    Dec_Graph_t ** pFForms;
    int i;
    abctime clk;
clk = Abc_Clock();
    // map SOP handles into factored forms
    pFForms = ABC_CALLOC( Dec_Graph_t *, Bbl_ManFncSize(p) );
    Bbl_ManForEachObj( p, pObj )
        if ( pFForms[Bbl_ObjFncHandle(pObj)] == NULL )
            pFForms[Bbl_ObjFncHandle(pObj)] = Dec_Factor( Bbl_ObjSop(p, pObj) );
if ( fVerbose )
ABC_PRT( "Fct", Abc_Clock() - clk );
    // start the network
    pNtk = Abc_NtkAlloc( ABC_NTK_STRASH, ABC_FUNC_AIG, 1 );
    pNtk->pName = Extra_UtilStrsav( Bbl_ManName(p) );
    vCopy = Vec_PtrStart( 1000 );
    // create CIs
    Bbl_ManForEachObj( p, pObj )
    {
        if ( !Bbl_ObjIsInput(pObj) )
            continue;
        Vec_PtrSetEntry( vCopy, Bbl_ObjId(pObj), Abc_NtkCreatePi(pNtk) );
    }
clk = Abc_Clock();
    // create internal nodes
    vNodes = Bbl_ManDfs( p );
    vFaninAigs = Vec_PtrAlloc( 100 );
    Vec_PtrForEachEntry( Bbl_Obj_t *, vNodes, pObj, i )
    {
        // collect fanin AIGs
        Vec_PtrClear( vFaninAigs );
        Bbl_ObjForEachFanin( pObj, pFanin )
            Vec_PtrPush( vFaninAigs, Vec_PtrEntry( vCopy, Bbl_ObjId(pFanin) ) );
        // create the new node
        pObjNew = Dec_GraphToAig( pNtk, pFForms[Bbl_ObjFncHandle(pObj)], vFaninAigs );
        Vec_PtrSetEntry( vCopy, Bbl_ObjId(pObj), pObjNew );
    }
    Vec_PtrFree( vFaninAigs );
    Vec_PtrFree( vNodes );
if ( fVerbose )
ABC_PRT( "AIG", Abc_Clock() - clk );
    // create COs
    Bbl_ManForEachObj( p, pObj )
    {
        if ( !Bbl_ObjIsOutput(pObj) )
            continue;
        pObjNew = (Abc_Obj_t *)Vec_PtrEntry( vCopy, Bbl_ObjId(Bbl_ObjFaninFirst(pObj)) );
        Abc_ObjAddFanin( Abc_NtkCreatePo(pNtk), pObjNew );
    }
    Abc_AigCleanup( (Abc_Aig_t *)pNtk->pManFunc );
    // clear factored forms
    for ( i = Bbl_ManFncSize(p) - 1; i >= 0; i-- )
        if ( pFForms[i] )
            Dec_GraphFree( pFForms[i] );
    ABC_FREE( pFForms );
    // finalize
clk = Abc_Clock();
    Vec_PtrFree( vCopy );
    Abc_NtkAddDummyPiNames( pNtk );
    Abc_NtkAddDummyPoNames( pNtk );
if ( fVerbose )
ABC_PRT( "Nam", Abc_Clock() - clk );
//    if ( !Abc_NtkCheck( pNtk ) )
//        printf( "Bbl_ManToAig(): Network check has failed.\n" );
    return pNtk;
}

void Bbl_ManVerify	(	Abc_Ntk_t *	pNtk1,
		Abc_Ntk_t *	pNtk2
	)

Fnction*************************************************************

Synopsis [Verifies equivalence for two combinational networks.]

Description []

SideEffects []

SeeAlso []

Definition at line 243 of file ioReadBblif.c.

{
    extern void Abc_NtkCecFraig( Abc_Ntk_t * pNtk1, Abc_Ntk_t * pNtk2, int nSeconds, int fVerbose );
    Abc_Ntk_t * pAig1, * pAig2;
    pAig1 = Abc_NtkStrash( pNtk1, 0, 1, 0 );
    pAig2 = Abc_NtkStrash( pNtk2, 0, 1, 0 );
    Abc_NtkShortNames( pAig1 );
    Abc_NtkShortNames( pAig2 );
    Abc_NtkCecFraig( pAig1, pAig2, 0, 0 );
    Abc_NtkDelete( pAig1 );
    Abc_NtkDelete( pAig2 );
}

Abc_Ntk_t* Io_ReadBblif	(	char *	pFileName,
		int	fCheck
	)

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

Synopsis [Reads the AIG in the binary format.]

Description []

SideEffects []

SeeAlso []

Definition at line 324 of file ioReadBblif.c.

{
    Bbl_Man_t * p;
    Abc_Ntk_t * pNtkNew;
    // read the file
    p = Bbl_ManReadBinaryBlif( pFileName );
    pNtkNew = Bbl_ManToAig( p );
    Bbl_ManStop( p );
    // check the result
    if ( fCheck && !Abc_NtkCheckRead( pNtkNew ) )
    {
        printf( "Io_ReadBaf: The network check has failed.\n" );
        Abc_NtkDelete( pNtkNew );
        return NULL;
    }
    return pNtkNew;
}