absRpmOld.c File Reference

#include "abs.h"

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Functions
ABC_NAMESPACE_IMPL_START Gia_Man_t *	Gia_ManDupIn2Ff (Gia_Man_t *p)
	DECLARATIONS ///.
int	Gia_ManDupFf2In_rec (Gia_Man_t *pNew, Gia_Obj_t *pObj)
Gia_Man_t *	Gia_ManDupFf2In (Gia_Man_t *p, int nFlopsOld)
Gia_Man_t *	Abs_RpmPerformOld (Gia_Man_t *p, int fVerbose)

Function Documentation

Abs_RpmPerformOld()

Gia_Man_t * Abs_RpmPerformOld	(	Gia_Man_t *	p,
		int	fVerbose )

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

Synopsis [Reparameterized to get rid of useless primary inputs.]

Description []

SideEffects []

SeeAlso []

Definition at line 141 of file absRpmOld.c.

{
//    extern Aig_Man_t * Saig_ManRetimeMinArea( Aig_Man_t * p, int nMaxIters, int fForwardOnly, int fBackwardOnly, int fInitial, int fVerbose );
    Aig_Man_t * pMan, * pTemp;
    Gia_Man_t * pNew, * pTmp;
    int nFlopsOld = Gia_ManRegNum(p);
    if ( fVerbose )
    {
        printf( "Original AIG:\n" );
        Gia_ManPrintStats( p, NULL );
    }
 
    // perform input trimming
    pNew = Gia_ManDupTrimmed( p, 1, 0, 0, -1 );
    if ( fVerbose )
    {
        printf( "After PI trimming:\n" );
        Gia_ManPrintStats( pNew, NULL );
    }
    // transform GIA
    pNew = Gia_ManDupIn2Ff( pTmp = pNew );
    Gia_ManStop( pTmp );
    if ( fVerbose )
    {
        printf( "After PI-2-FF transformation:\n" );
        Gia_ManPrintStats( pNew, NULL );
    }
 
    // derive AIG
    pMan = Gia_ManToAigSimple( pNew );
    Gia_ManStop( pNew );
    // perform min-reg retiming
    pMan = Saig_ManRetimeMinArea( pTemp = pMan, 10, 0, 0, 1, 0 );
    Aig_ManStop( pTemp );
    // derive GIA
    pNew = Gia_ManFromAigSimple( pMan );
    Aig_ManStop( pMan );
    if ( fVerbose )
    {
        printf( "After min-area retiming:\n" );
        Gia_ManPrintStats( pNew, NULL );
    }
 
    // transform back
    pNew = Gia_ManDupFf2In( pTmp = pNew, nFlopsOld );
    Gia_ManStop( pTmp );
    if ( fVerbose )
    {
        printf( "After FF-2-PI transformation:\n" );
        Gia_ManPrintStats( pNew, NULL );
    }
    return pNew;
}

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Gia_ManDupFf2In()

Gia_Man_t * Gia_ManDupFf2In	(	Gia_Man_t *	p,
		int	nFlopsOld )

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

Synopsis [Reverses the above step.]

Description []

SideEffects []

SeeAlso []

Definition at line 108 of file absRpmOld.c.

{
    Gia_Man_t * pNew; 
    Gia_Obj_t * pObj;
    int i;
    pNew = Gia_ManStart( Gia_ManObjNum(p) );
    pNew->pName = Abc_UtilStrsav( p->pName );
    pNew->pSpec = Abc_UtilStrsav( p->pSpec );
    Gia_ManFillValue( p );
    Gia_ManConst0(p)->Value = 0;
    Gia_ManForEachRo( p, pObj, i )
        pObj->Value = Gia_ManAppendCi( pNew );
    for ( i = Gia_ManPiNum(p) - nFlopsOld; i < Gia_ManPiNum(p); i++ )
        Gia_ManPi(p, i)->Value = Gia_ManAppendCi( pNew );
    Gia_ManForEachPo( p, pObj, i )
        Gia_ManDupFf2In_rec( pNew, Gia_ObjFanin0(pObj) );
    Gia_ManForEachPo( p, pObj, i )
        Gia_ManAppendCo( pNew, Gia_ObjFanin0Copy(pObj) );
    Gia_ManSetRegNum( pNew, nFlopsOld );
    return pNew;
}

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Gia_ManDupFf2In_rec()

int Gia_ManDupFf2In_rec	(	Gia_Man_t *	pNew,
		Gia_Obj_t *	pObj )

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

Synopsis [Reverses the above step.]

Description []

SideEffects []

SeeAlso []

Definition at line 87 of file absRpmOld.c.

{
    if ( pObj->Value != ~0 )
        return pObj->Value;
    assert( Gia_ObjIsAnd(pObj) );
    Gia_ManDupFf2In_rec( pNew, Gia_ObjFanin0(pObj) );
    Gia_ManDupFf2In_rec( pNew, Gia_ObjFanin1(pObj) );
    return pObj->Value = Gia_ManAppendAnd( pNew, Gia_ObjFanin0Copy(pObj), Gia_ObjFanin1Copy(pObj) );
}

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Gia_ManDupIn2Ff()

ABC_NAMESPACE_IMPL_START Gia_Man_t * Gia_ManDupIn2Ff

(

Gia_Man_t *

p

)

DECLARATIONS ///.

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

FileName [absRpmOld.c]

SystemName [ABC: Logic synthesis and verification system.]

PackageName [Scalable AIG package.]

Synopsis [Old min-cut-based reparametrization.]

Author [Alan Mishchenko]

Affiliation [UC Berkeley]

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

Revision [

Id

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

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

Synopsis [Specialized duplication.]

Description [Replaces registers by PIs/POs and PIs by registers.]

SideEffects []

SeeAlso []

Definition at line 45 of file absRpmOld.c.

{
    Vec_Int_t * vPiOuts;
    Gia_Man_t * pNew; 
    Gia_Obj_t * pObj;
    int i;
    vPiOuts = Vec_IntAlloc( Gia_ManPiNum(p) );
    pNew = Gia_ManStart( Gia_ManObjNum(p) + 2 * Gia_ManPiNum(p) );
    pNew->pName = Abc_UtilStrsav( p->pName );
    pNew->pSpec = Abc_UtilStrsav( p->pSpec );
    Gia_ManFillValue( p );
    Gia_ManConst0(p)->Value = 0;
    Gia_ManForEachPi( p, pObj, i )
        Vec_IntPush( vPiOuts, Gia_ManAppendCi(pNew) );
    Gia_ManForEachRo( p, pObj, i )
        pObj->Value = Gia_ManAppendCi( pNew );
    Gia_ManForEachPi( p, pObj, i )
        pObj->Value = Gia_ManAppendCi( pNew );
    Gia_ManForEachAnd( p, pObj, i )
        pObj->Value = Gia_ManAppendAnd( pNew, Gia_ObjFanin0Copy(pObj), Gia_ObjFanin1Copy(pObj) );
    Gia_ManForEachPo( p, pObj, i )
        pObj->Value = Gia_ManAppendCo( pNew, Gia_ObjFanin0Copy(pObj) );
    Gia_ManForEachRi( p, pObj, i )
        pObj->Value = Gia_ManAppendCo( pNew, Gia_ObjFanin0Copy(pObj) );
    Gia_ManForEachPi( p, pObj, i )
        Gia_ManAppendCo( pNew, Vec_IntEntry(vPiOuts, i) );
    Gia_ManSetRegNum( pNew, Gia_ManPiNum(p) );
    Vec_IntFree( vPiOuts );
    return pNew;
}

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