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|
/**CFile****************************************************************
FileName [wlnNdr.c]
SystemName [ABC: Logic synthesis and verification system.]
PackageName [Word-level network.]
Synopsis [Constructing WLN network from NDR data structure.]
Author [Alan Mishchenko]
Affiliation [UC Berkeley]
Date [Ver. 1.0. Started - September 23, 2018.]
Revision [$Id: wlnNdr.c,v 1.00 2018/09/23 00:00:00 alanmi Exp $]
***********************************************************************/
#include "wln.h"
#include "aig/miniaig/ndr.h"
ABC_NAMESPACE_IMPL_START
////////////////////////////////////////////////////////////////////////
/// DECLARATIONS ///
////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////
/// FUNCTION DEFINITIONS ///
////////////////////////////////////////////////////////////////////////
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void * Wln_NtkToNdr( Wln_Ntk_t * p )
{
Vec_Int_t * vFanins;
int i, k, iObj, iFanin;
// create a new module
void * pDesign = Ndr_Create( 1 );
int ModId = Ndr_AddModule( pDesign, 1 );
// add primary inputs
Wln_NtkForEachPi( p, iObj, i )
{
Ndr_AddObject( pDesign, ModId, ABC_OPER_CI, 0,
Wln_ObjRangeEnd(p, iObj), Wln_ObjRangeBeg(p, iObj), Wln_ObjIsSigned(p, iObj),
0, NULL, 1, &iObj, NULL ); // no fanins
}
// add internal nodes
vFanins = Vec_IntAlloc( 10 );
Wln_NtkForEachObjInternal( p, iObj )
{
Vec_IntClear( vFanins );
Wln_ObjForEachFanin( p, iObj, iFanin, k )
Vec_IntPush( vFanins, iFanin );
Ndr_AddObject( pDesign, ModId, Wln_ObjType(p, iObj), 0,
Wln_ObjRangeEnd(p, iObj), Wln_ObjRangeBeg(p, iObj), Wln_ObjIsSigned(p, iObj),
Vec_IntSize(vFanins), Vec_IntArray(vFanins), 1, &iObj,
Wln_ObjIsConst(p, iObj) ? Wln_ObjConstString(p, iObj) : NULL );
}
Vec_IntFree( vFanins );
// add primary outputs
Wln_NtkForEachPo( p, iObj, i )
{
Ndr_AddObject( pDesign, ModId, ABC_OPER_CO, 0,
Wln_ObjRangeEnd(p, iObj), Wln_ObjRangeBeg(p, iObj), Wln_ObjIsSigned(p, iObj),
1, &iObj, 0, NULL, NULL );
}
return pDesign;
}
void Wln_WriteNdr( Wln_Ntk_t * p, char * pFileName )
{
void * pDesign = Wln_NtkToNdr( p );
Ndr_Write( pFileName, pDesign );
Ndr_Delete( pDesign );
printf( "Dumped the current design into file \"%s\".\n", pFileName );
}
void Wln_NtkToNdrTest( Wln_Ntk_t * p )
{
// transform
void * pDesign = Wln_NtkToNdr( p );
// collect names
char ** ppNames = ABC_ALLOC( char *, Wln_NtkObjNum(p) + 1 ); int i;
Wln_NtkForEachObj( p, i )
ppNames[i] = Abc_UtilStrsav(Wln_ObjName(p, i));
// verify by writing Verilog
Ndr_WriteVerilog( NULL, pDesign, ppNames );
Ndr_Write( "test.ndr", pDesign );
// cleanup
Ndr_Delete( pDesign );
Wln_NtkForEachObj( p, i )
ABC_FREE( ppNames[i] );
ABC_FREE( ppNames );
}
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
int Ndr_ObjGetRange( Ndr_Data_t * p, int Obj, int * End, int * Beg )
{
int * pArray, nArray = Ndr_ObjReadArray( p, Obj, NDR_RANGE, &pArray );
int Signed = 0; *End = *Beg = 0;
if ( nArray == 0 )
return 0;
if ( nArray == 3 )
Signed = 1;
if ( nArray == 1 )
*End = *Beg = pArray[0];
else
*End = pArray[0], *Beg = pArray[1];
return Signed;
}
void Ndr_NtkPrintObjects( Wln_Ntk_t * pNtk )
{
int k, iObj, iFanin;
printf( "Node IDs and their fanins:\n" );
Wln_NtkForEachObj( pNtk, iObj )
{
printf( "%5d = ", iObj );
Wln_ObjForEachFanin( pNtk, iObj, iFanin, k )
printf( "%5d ", iFanin );
for ( ; k < 4; k++ )
printf( " " );
printf( " Name Id %d ", Wln_ObjNameId(pNtk, iObj) );
if ( Wln_ObjIsPi(pNtk, iObj) )
printf( " pi " );
if ( Wln_ObjIsPo(pNtk, iObj) )
printf( " po " );
printf( "\n" );
}
}
void Wln_NtkCheckIntegrity( void * pData )
{
Ndr_Data_t * p = (Ndr_Data_t *)pData;
Vec_Int_t * vMap = Vec_IntAlloc( 100 );
int Mod = 2, Obj;
Ndr_ModForEachObj( p, Mod, Obj )
{
int NameId = Ndr_ObjReadBody( p, Obj, NDR_OUTPUT );
if ( NameId == -1 )
{
int Type = Ndr_ObjReadBody( p, Obj, NDR_OPERTYPE );
if ( Type != ABC_OPER_CO )
printf( "Internal object %d of type %s has no output name.\n", Obj, Abc_OperName(Type) );
continue;
}
if ( Vec_IntGetEntry(vMap, NameId) > 0 )
printf( "Output name %d is used more than once (obj %d and obj %d).\n", NameId, Vec_IntGetEntry(vMap, NameId), Obj );
Vec_IntSetEntry( vMap, NameId, Obj );
}
Ndr_ModForEachObj( p, Mod, Obj )
{
int Type = Ndr_ObjReadBody( p, Obj, NDR_OPERTYPE );
int i, * pArray, nArray = Ndr_ObjReadArray( p, Obj, NDR_INPUT, &pArray );
for ( i = 0; i < nArray; i++ )
if ( Vec_IntGetEntry(vMap, pArray[i]) == 0 && !(Type == ABC_OPER_DFFRSE && (i >= 5 || i <= 7)) )
printf( "Input name %d appearing as fanin %d of obj %d is not used as output name in any object.\n", pArray[i], i, Obj );
}
Vec_IntFree( vMap );
}
Wln_Ntk_t * Wln_NtkFromNdr( void * pData )
{
Ndr_Data_t * p = (Ndr_Data_t *)pData;
Vec_Int_t * vName2Obj, * vFanins = Vec_IntAlloc( 100 );
Vec_Ptr_t * vConstStrings = Vec_PtrAlloc( 100 );
int Mod = 2, i, k, iFanin, iObj, Obj, * pArray, nDigits, fFound, NameId, NameIdMax;
Wln_Ntk_t * pTemp, * pNtk = Wln_NtkAlloc( "top", Ndr_DataObjNum(p, Mod) );
Wln_NtkCheckIntegrity( pData );
//pNtk->pSpec = Abc_UtilStrsav( pFileName );
// construct network and save name IDs
Wln_NtkCleanNameId( pNtk );
Wln_NtkCleanInstId( pNtk );
Ndr_ModForEachPi( p, Mod, Obj )
{
int End, Beg, Signed = Ndr_ObjGetRange(p, Obj, &End, &Beg);
int iObj = Wln_ObjAlloc( pNtk, ABC_OPER_CI, Signed, End, Beg );
int NameId = Ndr_ObjReadBody( p, Obj, NDR_OUTPUT );
int InstId = Ndr_ObjReadBody( p, Obj, NDR_NAME );
Wln_ObjSetNameId( pNtk, iObj, NameId );
if ( InstId > 0 ) Wln_ObjSetInstId( pNtk, iObj, InstId );
}
Ndr_ModForEachNode( p, Mod, Obj )
{
int End, Beg, Signed = Ndr_ObjGetRange(p, Obj, &End, &Beg);
int Type = Ndr_ObjReadBody( p, Obj, NDR_OPERTYPE );
int nArray = Ndr_ObjReadArray( p, Obj, NDR_INPUT, &pArray );
Vec_Int_t F = {nArray, nArray, pArray}, * vTemp = &F;
int iObj = Wln_ObjAlloc( pNtk, Type, Signed, End, Beg );
int NameId = Ndr_ObjReadBody( p, Obj, NDR_OUTPUT );
int InstId = Ndr_ObjReadBody( p, Obj, NDR_NAME );
Vec_IntClear( vFanins );
Vec_IntAppend( vFanins, vTemp );
assert( Type != ABC_OPER_DFF );
if ( Wln_ObjIsSlice(pNtk, iObj) )
Wln_ObjSetSlice( pNtk, iObj, Hash_Int2ManInsert(pNtk->pRanges, End, Beg, 0) );
else if ( Wln_ObjIsConst(pNtk, iObj) )
Vec_PtrPush( vConstStrings, (char *)Ndr_ObjReadBodyP(p, Obj, NDR_FUNCTION) );
// else if ( Type == ABC_OPER_BIT_MUX && Vec_IntSize(vFanins) == 3 )
// ABC_SWAP( int, Wln_ObjFanins(pNtk, iObj)[1], Wln_ObjFanins(pNtk, iObj)[2] );
Wln_ObjAddFanins( pNtk, iObj, vFanins );
Wln_ObjSetNameId( pNtk, iObj, NameId );
if ( InstId > 0 ) Wln_ObjSetInstId( pNtk, iObj, InstId );
if ( Type == ABC_OPER_ARI_SMUL )
{
assert( Wln_ObjFaninNum(pNtk, iObj) == 2 );
Wln_ObjSetSigned( pNtk, Wln_ObjFanin0(pNtk, iObj) );
Wln_ObjSetSigned( pNtk, Wln_ObjFanin1(pNtk, iObj) );
}
}
// mark primary outputs
Ndr_ModForEachPo( p, Mod, Obj )
{
int End, Beg, Signed = Ndr_ObjGetRange(p, Obj, &End, &Beg);
int nArray = Ndr_ObjReadArray( p, Obj, NDR_INPUT, &pArray );
int iObj = Wln_ObjAlloc( pNtk, ABC_OPER_CO, Signed, End, Beg );
int NameId = Ndr_ObjReadBody( p, Obj, NDR_OUTPUT );
int InstId = Ndr_ObjReadBody( p, Obj, NDR_NAME );
assert( nArray == 1 && NameId == -1 && InstId == -1 );
Wln_ObjAddFanin( pNtk, iObj, pArray[0] );
}
Vec_IntFree( vFanins );
// remove instance names if they are not given
//Vec_IntPrint( &pNtk->vInstIds );
if ( Vec_IntCountPositive(&pNtk->vInstIds) == 0 )
Vec_IntErase( &pNtk->vInstIds );
// map name IDs into object IDs
vName2Obj = Vec_IntInvert( &pNtk->vNameIds, 0 );
Wln_NtkForEachObj( pNtk, i )
Wln_ObjForEachFanin( pNtk, i, iFanin, k )
Wln_ObjSetFanin( pNtk, i, k, Vec_IntEntry(vName2Obj, iFanin) );
Vec_IntFree(vName2Obj);
// create fake object names
NameIdMax = Vec_IntFindMax(&pNtk->vNameIds);
nDigits = Abc_Base10Log( NameIdMax+1 );
pNtk->pManName = Abc_NamStart( NameIdMax+1, 10 );
for ( i = 1; i <= NameIdMax; i++ )
{
char pName[20]; sprintf( pName, "s%0*d", nDigits, i );
NameId = Abc_NamStrFindOrAdd( pNtk->pManName, pName, &fFound );
assert( !fFound && i == NameId );
}
// add const strings
i = 0;
Wln_NtkForEachObj( pNtk, iObj )
if ( Wln_ObjIsConst(pNtk, iObj) )
Wln_ObjSetConst( pNtk, iObj, Abc_NamStrFindOrAdd(pNtk->pManName, (char *)Vec_PtrEntry(vConstStrings, i++), NULL) );
assert( i == Vec_PtrSize(vConstStrings) );
Vec_PtrFree( vConstStrings );
//Ndr_NtkPrintObjects( pNtk );
Wln_WriteVer( pNtk, "temp_ndr.v" );
printf( "Dumped design \"%s\" into file \"temp_ndr.v\".\n", pNtk->pName );
// derive topological order
pNtk = Wln_NtkDupDfs( pTemp = pNtk );
Wln_NtkFree( pTemp );
//Ndr_NtkPrintObjects( pNtk );
//pNtk->fMemPorts = 1; // the network contains memory ports
//pNtk->fEasyFfs = 1; // the network contains simple flops
return pNtk;
}
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
Wln_Ntk_t * Wln_ReadNdr( char * pFileName )
{
void * pData = Ndr_Read( pFileName );
Wln_Ntk_t * pNtk = Wln_NtkFromNdr( pData );
//char * ppNames[10] = { NULL, "a", "b", "c", "d", "e", "f", "g", "h", "i" };
//Ndr_WriteVerilog( NULL, pData, ppNames );
Ndr_Delete( pData );
return pNtk;
}
void Wln_ReadNdrTest()
{
Wln_Ntk_t * pNtk = Wln_ReadNdr( "D:\\temp\\brijesh\\for_alan_dff_warning\\work_fir_filter_fir_filter_proc_out.ndr" );
//Wln_Ntk_t * pNtk = Wln_ReadNdr( "flop.ndr" );
Wln_WriteVer( pNtk, "test__test.v" );
Wln_NtkPrint( pNtk );
Wln_NtkStaticFanoutTest( pNtk );
Wln_NtkFree( pNtk );
}
void Wln_NtkRetimeTest( char * pFileName )
{
void * pData = Ndr_Read( pFileName );
Wln_Ntk_t * pNtk = Wln_NtkFromNdr( pData );
Ndr_Delete( pData );
if ( Wln_NtkHasInstId(pNtk) )
Vec_IntErase( &pNtk->vInstIds );
if ( !Wln_NtkHasInstId(pNtk) )
{
int iObj;
printf( "The design has no delay information.\n" );
Wln_NtkCleanInstId(pNtk);
Wln_NtkForEachObj( pNtk, iObj )
if ( Wln_ObjIsFf(pNtk, iObj) )
Wln_ObjSetInstId( pNtk, iObj, 1 );
else if ( !Wln_ObjIsCio(pNtk, iObj) && Wln_ObjFaninNum(pNtk, iObj) > 0 )
Wln_ObjSetInstId( pNtk, iObj, 10 );
printf( "Assuming user-specified delays for internal nodes.\n" );
}
/*
else
{
int iObj;
Wln_NtkForEachObj( pNtk, iObj )
if ( !Wln_ObjIsCio(pNtk, iObj) && Wln_ObjFaninNum(pNtk, iObj) > 0 && !Wln_ObjIsFf(pNtk, iObj) )
printf( "Obj %5d : NameId = %6d InstId = %6d\n", iObj, Wln_ObjNameId(pNtk, iObj), Wln_ObjInstId(pNtk, iObj) );
}
*/
//else
{
Vec_Int_t * vMoves = Wln_NtkRetime( pNtk );
//Vec_IntPrint( vMoves );
Vec_IntFree( vMoves );
}
Wln_NtkFree( pNtk );
}
////////////////////////////////////////////////////////////////////////
/// END OF FILE ///
////////////////////////////////////////////////////////////////////////
ABC_NAMESPACE_IMPL_END
|
