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Commit ffc7b60d by Alan Mishchenko
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Support of init-state in AIGs derived from word-level designs in Wlc_Ntk_t.

parent 14425c11
Showing with 71 additions and 6 deletions
src/base/wlc/wlc.h
......@@ -120,6 +120,8 @@ struct Wlc_Ntk_t_
Vec_Int_t vCis; // combinational inputs
Vec_Int_t vCos; // combinational outputs
Vec_Int_t vFfs; // flops
Vec_Int_t vInits; // initial values
char * pInits; // initial values
int nObjs[WLC_OBJ_NUMBER]; // counter of objects of each type
int nAnds[WLC_OBJ_NUMBER]; // counter of AND gates after blasting
// memory for objects
......
src/base/wlc/wlcBlast.c
......@@ -777,6 +777,20 @@ Gia_Man_t * Wlc_NtkBitBlast( Wlc_Ntk_t * p, Vec_Int_t * vBoxIds )
// finalize AIG
pNew = Gia_ManCleanup( pTemp = pNew );
Gia_ManStop( pTemp );
// transform AIG with init state
if ( p->pInits )
{
if ( (int)strlen(p->pInits) != Gia_ManRegNum(pNew) )
{
printf( "The number of init values (%d) does not match the number of flops (%d).\n", strlen(p->pInits), Gia_ManRegNum(pNew) );
printf( "It is assumed that the AIG has constant 0 initial state.\n" );
}
else
{
pNew = Gia_ManDupZeroUndc( pTemp = pNew, p->pInits, 1 );
Gia_ManStop( pTemp );
}
}
// finalize AIG with boxes
if ( vBoxIds )
{
......
src/base/wlc/wlcNtk.c
......@@ -33,7 +33,7 @@ static char * Wlc_Names[WLC_OBJ_NUMBER+1] = {
NULL, // 00: unknown
"pi", // 01: primary input
"po", // 02: primary output
"bo", // 03: box output
"ff", // 03: box output
"bi", // 04: box input
"ff", // 05: flop
"const", // 06: constant
......@@ -206,9 +206,11 @@ void Wlc_NtkFree( Wlc_Ntk_t * p )
ABC_FREE( p->vCis.pArray );
ABC_FREE( p->vCos.pArray );
ABC_FREE( p->vFfs.pArray );
ABC_FREE( p->vInits.pArray );
ABC_FREE( p->vTravIds.pArray );
ABC_FREE( p->vNameIds.pArray );
ABC_FREE( p->vCopies.pArray );
ABC_FREE( p->pInits );
ABC_FREE( p->pObjs );
ABC_FREE( p->pName );
ABC_FREE( p );
......@@ -469,6 +471,7 @@ Wlc_Ntk_t * Wlc_NtkDupDfs( Wlc_Ntk_t * p )
Wlc_NtkDupDfs_rec( pNew, p, Wlc_ObjId(p, pObj), vFanins );
Wlc_NtkForEachCo( p, pObj, i )
Wlc_ObjSetCo( pNew, Wlc_ObjCopyObj(pNew, p, pObj), pObj->fIsFi );
pNew->pInits = Abc_UtilStrsav( p->pInits );
Vec_IntFree( vFanins );
return pNew;
}
......
src/base/wlc/wlcReadVer.c
......@@ -413,6 +413,42 @@ cont:
SeeAlso []
***********************************************************************/
char * Wlc_PrsConvertInitValues( Wlc_Ntk_t * p )
{
Wlc_Obj_t * pObj;
int i, k, Value, * pInits;
char * pResult;
Vec_Str_t * vStr = Vec_StrAlloc( 1000 );
Vec_IntForEachEntry( &p->vInits, Value, i )
{
if ( Value < 0 )
{
for ( k = 0; k < -Value; k++ )
Vec_StrPush( vStr, '0' );
continue;
}
pObj = Wlc_NtkObj( p, Value );
pInits = pObj->Type == WLC_OBJ_CONST ? Wlc_ObjConstValue(pObj) : NULL;
for ( k = 0; k < Wlc_ObjRange(pObj); k++ )
Vec_StrPush( vStr, (char)(pInits ? '0' + Abc_InfoHasBit(pInits, k) : 'X') );
}
Vec_StrPush( vStr, '\0' );
pResult = Vec_StrReleaseArray( vStr );
Vec_StrFree( vStr );
return pResult;
}
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
static inline char * Wlc_PrsFindRange( char * pStr, int * End, int * Beg )
{
*End = *Beg = 0;
......@@ -880,12 +916,17 @@ startword:
Vec_IntFree( vTemp );
// move FO/FI to be part of CI/CO
assert( (Vec_IntSize(&p->pNtk->vFfs) & 1) == 0 );
assert( Vec_IntSize(&p->pNtk->vFfs) == 2 * Vec_IntSize(&p->pNtk->vInits) );
Wlc_NtkForEachFf( p->pNtk, pObj, i )
if ( i & 1 )
Wlc_ObjSetCo( p->pNtk, pObj, 1 );
else
Wlc_ObjSetCi( p->pNtk, pObj );
Vec_IntClear( &p->pNtk->vFfs );
// convert init values into binary string
//Vec_IntPrint( &p->pNtk->vInits );
p->pNtk->pInits = Wlc_PrsConvertInitValues( p->pNtk );
//printf( "%s", p->pNtk->pInits );
break;
}
// these are read as part of the interface
......@@ -1028,7 +1069,7 @@ startword:
}
else if ( Wlc_PrsStrCmp( pStart, "CPL_FF" ) )
{
int NameId = -1, NameIdOut = -1, fFound, nBits = 1, fFlopOut;
int NameId = -1, NameIdIn = -1, NameIdOut = -1, fFound, nBits = 1, fFlopOut, fFlopIn;
pStart += strlen("CPL_FF");
if ( pStart[0] == '#' )
nBits = atoi(pStart+1);
......@@ -1039,8 +1080,9 @@ startword:
if ( pStart == NULL )
break;
pStart = Wlc_PrsSkipSpaces( pStart+1 );
if ( pStart[0] != 'd' && (pStart[0] != 'q' || pStart[1] == 'b') )
if ( pStart[0] != 'd' && (pStart[0] != 'q' || pStart[1] == 'b') && strncmp(pStart, "arstval", 7) )
continue;
fFlopIn = (pStart[0] == 'q');
fFlopOut = (pStart[0] == 'd');
pStart = Wlc_PrsFindSymbol( pStart, '(' );
if ( pStart == NULL )
......@@ -1050,17 +1092,19 @@ startword:
return Wlc_PrsWriteErrorMessage( p, pStart, "Cannot read name inside flop description." );
if ( fFlopOut )
NameIdOut = Abc_NamStrFindOrAdd( p->pNtk->pManName, pName, &fFound );
else if ( fFlopIn )
NameIdIn = Abc_NamStrFindOrAdd( p->pNtk->pManName, pName, &fFound );
else
NameId = Abc_NamStrFindOrAdd( p->pNtk->pManName, pName, &fFound );
if ( !fFound )
return Wlc_PrsWriteErrorMessage( p, pStart, "Name %s is not declared.", pName );
}
if ( NameId == -1 || NameIdOut == -1 )
if ( NameIdIn == -1 || NameIdOut == -1 )
return Wlc_PrsWriteErrorMessage( p, pStart, "Name of flop input or flop output is missing." );
// create flop output
pObj = Wlc_NtkObj( p->pNtk, NameId );
pObj = Wlc_NtkObj( p->pNtk, NameIdIn );
Wlc_ObjUpdateType( p->pNtk, pObj, WLC_OBJ_FO );
Vec_IntPush( &p->pNtk->vFfs, NameId );
Vec_IntPush( &p->pNtk->vFfs, NameIdIn );
if ( nBits != Wlc_ObjRange(pObj) )
printf( "Warning! Flop input has bit-width (%d) that differs from the declaration (%d)\n", nBits, Wlc_ObjRange(pObj) );
// create flop input
......@@ -1068,6 +1112,8 @@ startword:
Vec_IntPush( &p->pNtk->vFfs, NameIdOut );
if ( nBits != Wlc_ObjRange(pObj) )
printf( "Warning! Flop output has bit-width (%d) that differs from the declaration (%d)\n", nBits, Wlc_ObjRange(pObj) );
// save flop init value
Vec_IntPush( &p->pNtk->vInits, NameId > 0 ? NameId : -Wlc_ObjRange(pObj) );
}
else if ( pStart[0] != '`' )
{
......
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