1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
|
/**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 = pData ? Wln_NtkFromNdr( pData ) : NULL;
if ( pNtk ) return NULL;
//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, int fVerbose )
{
Vec_Int_t * vMoves;
void * pData = Ndr_Read( pFileName );
Wln_Ntk_t * pNtk = pData ? Wln_NtkFromNdr( pData ) : NULL;
if ( pNtk == NULL )
{
printf( "Retiming network is not available.\n" );
return;
}
Ndr_Delete( pData );
Wln_NtkRetimeCreateDelayInfo( pNtk );
vMoves = Wln_NtkRetime( pNtk, fVerbose );
//Vec_IntPrint( vMoves );
Vec_IntFree( vMoves );
Wln_NtkFree( pNtk );
}
////////////////////////////////////////////////////////////////////////
/// END OF FILE ///
////////////////////////////////////////////////////////////////////////
ABC_NAMESPACE_IMPL_END
|
