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/**CFile****************************************************************
FileName [cbaBuild.c]
SystemName [ABC: Logic synthesis and verification system.]
PackageName [Verilog parser.]
Synopsis [Parses several flavors of word-level Verilog.]
Author [Alan Mishchenko]
Affiliation [UC Berkeley]
Date [Ver. 1.0. Started - November 29, 2014.]
Revision [$Id: cbaBuild.c,v 1.00 2014/11/29 00:00:00 alanmi Exp $]
***********************************************************************/
#include "cba.h"
ABC_NAMESPACE_IMPL_START
////////////////////////////////////////////////////////////////////////
/// DECLARATIONS ///
////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////
/// FUNCTION DEFINITIONS ///
////////////////////////////////////////////////////////////////////////
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
// replaces NameIds of formal names by their index in the box model
void Cba_BoxRemap( Cba_Ntk_t * pNtk, int iBox, Vec_Int_t * vMap )
{
Cba_Ntk_t * pBoxModel = Cba_ObjBoxModel( pNtk, iBox );
Vec_Int_t * vFanins = Cba_ObjFaninVec( pNtk, iBox );
int i, NameId;
// map formal names into I/O indexes
Cba_NtkForEachPi( pBoxModel, NameId, i )
{
assert( Vec_IntEntry(vMap, NameId) == -1 );
Vec_IntWriteEntry( vMap, NameId, i );
}
Cba_NtkForEachPo( pBoxModel, NameId, i )
{
assert( Vec_IntEntry(vMap, NameId) == -1 );
Vec_IntWriteEntry( vMap, NameId, Cba_NtkPiNum(pBoxModel) + i );
}
// remap box
assert( Vec_IntSize(vFanins) % 2 == 0 );
Vec_IntForEachEntry( vFanins, NameId, i )
{
assert( Vec_IntEntry(vMap, NameId) != -1 );
Vec_IntWriteEntry( vFanins, i++, Vec_IntEntry(vMap, NameId) );
}
// unmap formal inputs
Cba_NtkForEachPi( pBoxModel, NameId, i )
Vec_IntWriteEntry( vMap, NameId, -1 );
Cba_NtkForEachPo( pBoxModel, NameId, i )
Vec_IntWriteEntry( vMap, NameId, -1 );
}
void Cba_NtkRemapBoxes( Cba_Ntk_t * pNtk, Vec_Int_t * vMap )
{
int Type, iBox;
Cba_NtkForEachObjType( pNtk, Type, iBox )
if ( Type == CBA_OBJ_BOX )
Cba_BoxRemap( pNtk, iBox, vMap );
Vec_IntForEachEntry( vMap, Type, iBox )
assert( Type == -1 );
}
// create maps of NameId and boxes
void Cba_NtkFindNonDriven( Cba_Ntk_t * pNtk, Vec_Int_t * vMap, int nObjCount, Vec_Int_t * vNonDriven )
{
int i, iObj, Type, NameId, Index;
// consider input node names
Vec_IntClear( vNonDriven );
Cba_NtkForEachObjType( pNtk, Type, iObj )
{
if ( Type == CBA_OBJ_NODE )
{
Vec_Int_t * vFanins = Cba_ObjFaninVec( pNtk, iObj );
Vec_IntForEachEntryStart( vFanins, NameId, i, 1 )
if ( Vec_IntEntry(vMap, NameId) == -1 )
Vec_IntWriteEntry( vMap, NameId, nObjCount++ ), Vec_IntPush(vNonDriven, NameId);
}
else if ( Type == CBA_OBJ_BOX )
{
Cba_Ntk_t * pNtkBox = Cba_ObjBoxModel( pNtk, iObj );
Vec_Int_t * vFanins = Cba_ObjFaninVec( pNtk, iObj );
Vec_IntForEachEntry( vFanins, Index, i )
{
i++;
if ( Index >= Cba_NtkPiNum(pNtkBox) )
continue;
NameId = Vec_IntEntry( vFanins, i );
if ( Vec_IntEntry(vMap, NameId) == -1 )
Vec_IntWriteEntry( vMap, NameId, nObjCount++ ), Vec_IntPush(vNonDriven, NameId);
}
}
}
Cba_NtkForEachPo( pNtk, NameId, i )
if ( Vec_IntEntry(vMap, NameId) == -1 )
Vec_IntWriteEntry( vMap, NameId, nObjCount++ ), Vec_IntPush(vNonDriven, NameId);
if ( Vec_IntSize(vNonDriven) > 0 )
printf( "Module %s has %d non-driven nets (for example, %s).\n", Cba_NtkName(pNtk), Vec_IntSize(vNonDriven), Cba_NtkStr(pNtk, Vec_IntEntry(vNonDriven, 0)) );
}
int Cba_NtkCreateMap( Cba_Ntk_t * pNtk, Vec_Int_t * vMap, Vec_Int_t * vBoxes, Vec_Int_t * vNonDriven )
{
int i, iObj, Type, Index, NameId;
int nObjCount = 0;
// map old name IDs into new object IDs
Vec_IntClear( vBoxes );
Cba_NtkForEachPi( pNtk, NameId, i )
{
if ( Vec_IntEntry(vMap, NameId) != -1 )
printf( "Primary inputs %d and %d have the same name.\n", Vec_IntEntry(vMap, NameId), i );
Vec_IntWriteEntry( vMap, NameId, nObjCount++ );
}
Cba_NtkForEachObjType( pNtk, Type, iObj )
{
if ( Type == CBA_OBJ_NODE )
{
// consider node output name
Vec_Int_t * vFanins = Cba_ObjFaninVec( pNtk, iObj );
NameId = Vec_IntEntry( vFanins, 0 );
if ( Vec_IntEntry(vMap, NameId) != -1 )
printf( "Node output name %d is already driven.\n", NameId );
Vec_IntWriteEntry( vMap, NameId, nObjCount++ );
}
else if ( Type == CBA_OBJ_BOX )
{
Vec_Int_t * vFanins = Cba_ObjFaninVec( pNtk, iObj );
Cba_Ntk_t * pNtkBox = Cba_ObjBoxModel( pNtk, iObj );
nObjCount += Cba_NtkPiNum(pNtkBox);
Vec_IntPush( vBoxes, nObjCount++ );
Vec_IntForEachEntry( vFanins, Index, i )
{
i++;
if ( Index < Cba_NtkPiNum(pNtkBox) )
continue;
assert( Index - Cba_NtkPiNum(pNtkBox) < Cba_NtkPoNum(pNtkBox) );
// consider box output name
NameId = Vec_IntEntry( vFanins, i );
if ( Vec_IntEntry(vMap, NameId) != -1 )
printf( "Box output name %d is already driven.\n", NameId );
Vec_IntWriteEntry( vMap, NameId, nObjCount + Index - Cba_NtkPiNum(pNtkBox) );
}
nObjCount += Cba_NtkPoNum(pNtkBox);
}
}
Cba_NtkFindNonDriven( pNtk, vMap, nObjCount, vNonDriven );
nObjCount += Vec_IntSize(vNonDriven) + Cba_NtkPoNum(pNtk);
return nObjCount;
}
Cba_Ntk_t * Cba_NtkBuild( Cba_Man_t * pNew, Cba_Ntk_t * pNtk, Vec_Int_t * vMap, Vec_Int_t * vNonDriven, Vec_Int_t * vTemp, int nObjCount )
{
Vec_Int_t * vFanins;
Cba_Ntk_t * pNtkNew, * pNtkBox;
int i, iObj, ObjId, FaninId, Type, Index, NameId, nBoxes = 0;
// start network
pNtkNew = Cba_ManNtk( pNew, Cba_NtkId(pNtk) );
Cba_NtkResize( pNtkNew, nObjCount );
// fill object information
Cba_NtkForEachPi( pNtk, NameId, i )
{
ObjId = Vec_IntEntry( vMap, NameId );
Vec_IntWriteEntry( &pNtkNew->vInputs, i, ObjId );
Vec_IntWriteEntry( &pNtkNew->vTypes, ObjId, CBA_OBJ_PI );
Vec_IntWriteEntry( &pNtkNew->vFuncs, ObjId, i );
Vec_IntWriteEntry( &pNtkNew->vNameIds, ObjId, NameId );
}
Cba_NtkForEachObjType( pNtk, Type, iObj )
{
vFanins = Cba_ObjFaninVec( pNtk, iObj );
if ( Type == CBA_OBJ_NODE )
{
ObjId = Vec_IntEntry( vMap, Vec_IntEntry(vFanins, 0) );
Vec_IntClear( vTemp );
Vec_IntForEachEntryStart( vFanins, NameId, i, 1 )
{
assert( Vec_IntEntry(vMap, NameId) != -1 );
Vec_IntPush( vTemp, Vec_IntEntry(vMap, NameId) );
}
Vec_IntWriteEntry( &pNtkNew->vTypes, ObjId, CBA_OBJ_NODE );
Vec_IntWriteEntry( &pNtkNew->vFuncs, ObjId, Cba_ObjFuncId(pNtk, iObj) );
Vec_IntWriteEntry( &pNtkNew->vFanins, ObjId, Cba_ManHandleArray(pNew, vTemp) );
Vec_IntWriteEntry( &pNtkNew->vNameIds, ObjId, Vec_IntEntry(vFanins, 0) );
}
else if ( Type == CBA_OBJ_BOX )
{
ObjId = Vec_IntEntry( &pNtkNew->vBoxes, nBoxes++ );
pNtkBox = Cba_ObjBoxModel( pNtk, iObj );
Cba_NtkSetHost( pNtkBox, Cba_NtkId(pNtk), ObjId );
// collect fanins
Vec_IntFill( vTemp, Cba_NtkPiNum(pNtkBox), -1 );
Vec_IntForEachEntry( vFanins, Index, i )
{
i++; NameId = Vec_IntEntry( vFanins, i );
assert( Vec_IntEntry(vMap, NameId) != -1 );
if ( Index < Cba_NtkPiNum(pNtkBox) )
{
Vec_IntWriteEntry( vTemp, Index, Vec_IntEntry(vMap, NameId) );
Vec_IntWriteEntry( &pNtkNew->vNameIds, ObjId - Cba_NtkPiNum(pNtkBox) + Index, NameId );
}
else
{
assert( Vec_IntEntry(vMap, NameId) == ObjId + 1 + Index - Cba_NtkPiNum(pNtkBox) );
Vec_IntWriteEntry( &pNtkNew->vNameIds, Vec_IntEntry(vMap, NameId), NameId );
}
}
Vec_IntForEachEntry( vTemp, Index, i )
assert( Index >= 0 );
// create box
Vec_IntWriteEntry( &pNtkNew->vTypes, ObjId, CBA_OBJ_BOX );
Vec_IntWriteEntry( &pNtkNew->vFuncs, ObjId, Cba_ManNtkId(pNew, Cba_NtkName(pNtkBox)) );
// create box inputs
Cba_BoxForEachBi( pNtkNew, ObjId, FaninId, i )
{
Vec_IntWriteEntry( &pNtkNew->vTypes, FaninId, CBA_OBJ_BI );
Vec_IntWriteEntry( &pNtkNew->vFuncs, FaninId, i );
Vec_IntWriteEntry( &pNtkNew->vFanins, FaninId, Vec_IntEntry(vTemp, i) );
}
// create box outputs
Cba_BoxForEachBo( pNtkNew, ObjId, FaninId, i )
{
Vec_IntWriteEntry( &pNtkNew->vTypes, FaninId, CBA_OBJ_BO );
Vec_IntWriteEntry( &pNtkNew->vFuncs, FaninId, i );
Vec_IntWriteEntry( &pNtkNew->vFanins, FaninId, ObjId );
}
}
}
assert( nBoxes == Vec_IntSize(&pNtkNew->vBoxes) );
// add constants for nondriven nodes
Vec_IntForEachEntry( vNonDriven, NameId, i )
{
ObjId = Vec_IntEntry( vMap, NameId );
Vec_IntWriteEntry( &pNtkNew->vOutputs, i, ObjId );
Vec_IntWriteEntry( &pNtkNew->vTypes, ObjId, CBA_OBJ_NODE );
Vec_IntWriteEntry( &pNtkNew->vFuncs, ObjId, CBA_NODE_C0 );
Vec_IntWriteEntry( &pNtkNew->vFanins, ObjId, Cba_ManHandleBuffer(pNew, -1) );
Vec_IntWriteEntry( &pNtkNew->vNameIds, ObjId, NameId );
}
// add PO nodes
Cba_NtkForEachPo( pNtk, NameId, i )
{
ObjId = nObjCount - Cba_NtkPoNum(pNtk) + i;
FaninId = Vec_IntEntry( vMap, NameId );
assert( FaninId != -1 );
Vec_IntWriteEntry( &pNtkNew->vOutputs, i, ObjId );
Vec_IntWriteEntry( &pNtkNew->vTypes, ObjId, CBA_OBJ_PO );
Vec_IntWriteEntry( &pNtkNew->vFuncs, ObjId, i );
Vec_IntWriteEntry( &pNtkNew->vFanins, ObjId, FaninId );
// remove NameId from the driver and assign it to the output
//Vec_IntWriteEntry( &pNtkNew->vNameIds, FaninId, -1 );
Vec_IntWriteEntry( &pNtkNew->vNameIds, ObjId, NameId );
}
return pNtkNew;
}
void Cba_NtkCleanMap( Cba_Ntk_t * pNtk, Vec_Int_t * vMap )
{
Vec_Int_t * vFanins;
int i, iObj, Type, NameId;
Cba_NtkForEachPi( pNtk, NameId, i )
Vec_IntWriteEntry( vMap, NameId, -1 );
Cba_NtkForEachObjType( pNtk, Type, iObj )
{
vFanins = Cba_ObjFaninVec( pNtk, iObj );
if ( Type == CBA_OBJ_NODE )
{
Vec_IntForEachEntry( vFanins, NameId, i )
Vec_IntWriteEntry( vMap, NameId, -1 );
}
else if ( Type == CBA_OBJ_BOX )
{
Vec_IntForEachEntry( vFanins, NameId, i )
Vec_IntWriteEntry( vMap, Vec_IntEntry(vFanins, ++i), -1 );
}
}
Cba_NtkForEachPo( pNtk, NameId, i )
Vec_IntWriteEntry( vMap, NameId, -1 );
}
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
Cba_Man_t * Cba_ManBuild( Cba_Man_t * p )
{
Cba_Man_t * pNew = Cba_ManClone( p );
Vec_Int_t * vMap = Vec_IntStartFull( Abc_NamObjNumMax(p->pNames) + 1 );
Vec_Int_t * vNonDr = Vec_IntAlloc( 1000 );
Vec_Int_t * vTemp = Vec_IntAlloc( 1000 );
Cba_Ntk_t * pNtk; int i, nObjs;
assert( Abc_NamObjNumMax(p->pModels) == Cba_ManNtkNum(p) + 1 );
Cba_ManForEachNtk( p, pNtk, i )
{
Cba_NtkRemapBoxes( pNtk, vMap );
nObjs = Cba_NtkCreateMap( pNtk, vMap, &Cba_ManNtk(pNew, i)->vBoxes, vNonDr );
Cba_NtkBuild( pNew, pNtk, vMap, vNonDr, vTemp, nObjs );
Cba_NtkCleanMap( pNtk, vMap );
}
Vec_IntFree( vMap );
Vec_IntFree( vNonDr );
Vec_IntFree( vTemp );
return pNew;
}
////////////////////////////////////////////////////////////////////////
/// END OF FILE ///
////////////////////////////////////////////////////////////////////////
ABC_NAMESPACE_IMPL_END
|
