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
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
|
/**CFile****************************************************************
FileName [giaGlitch.c]
SystemName [ABC: Logic synthesis and verification system.]
PackageName [Scalable AIG package.]
Synopsis [Glitch simulation.]
Author [Alan Mishchenko]
Affiliation [UC Berkeley]
Date [Ver. 1.0. Started - June 20, 2005.]
Revision [$Id: giaGlitch.c,v 1.00 2005/06/20 00:00:00 alanmi Exp $]
***********************************************************************/
#include "gia.h"
ABC_NAMESPACE_IMPL_START
////////////////////////////////////////////////////////////////////////
/// DECLARATIONS ///
////////////////////////////////////////////////////////////////////////
typedef struct Gli_Obj_t_ Gli_Obj_t;
struct Gli_Obj_t_
{
unsigned fTerm : 1; // terminal node
unsigned fPhase : 1; // value under 000 pattern
unsigned fPhase2 : 1; // value under 000 pattern
unsigned fMark : 1; // user-controlled mark
unsigned nFanins : 3; // the number of fanins
unsigned nFanouts : 25; // total number of fanouts
unsigned Handle; // ID of the node
unsigned uTruth[2]; // truth table of the node
unsigned uSimInfo; // simulation info of the node
union
{
int iFanin; // the number of fanins added
int nSwitches; // the number of switches
};
union
{
int iFanout; // the number of fanouts added
int nGlitches; // the number of glitches ( nGlitches >= nSwitches )
};
int Fanios[0]; // the array of fanins/fanouts
};
typedef struct Gli_Man_t_ Gli_Man_t;
struct Gli_Man_t_
{
Vec_Int_t * vCis; // the vector of CIs (PIs + LOs)
Vec_Int_t * vCos; // the vector of COs (POs + LIs)
Vec_Int_t * vCisChanged; // the changed CIs
Vec_Int_t * vAffected; // the affected nodes
Vec_Int_t * vFrontier; // the fanouts of these nodes
int nObjs; // the number of objects
int nRegs; // the number of registers
int nTravIds; // traversal ID of the network
int iObjData; // pointer to the current data
int nObjData; // the size of array to store the logic network
int * pObjData; // the internal nodes
unsigned * pSimInfoPrev; // previous values of the CIs
};
static inline int Gli_ManCiNum( Gli_Man_t * p ) { return Vec_IntSize(p->vCis); }
static inline int Gli_ManCoNum( Gli_Man_t * p ) { return Vec_IntSize(p->vCos); }
static inline int Gli_ManPiNum( Gli_Man_t * p ) { return Vec_IntSize(p->vCis) - p->nRegs; }
static inline int Gli_ManPoNum( Gli_Man_t * p ) { return Vec_IntSize(p->vCos) - p->nRegs; }
static inline int Gli_ManRegNum( Gli_Man_t * p ) { return p->nRegs; }
static inline int Gli_ManObjNum( Gli_Man_t * p ) { return p->nObjs; }
static inline int Gli_ManNodeNum( Gli_Man_t * p ) { return p->nObjs - Vec_IntSize(p->vCis) - Vec_IntSize(p->vCos); }
static inline Gli_Obj_t * Gli_ManObj( Gli_Man_t * p, int v ) { return (Gli_Obj_t *)(p->pObjData + v); }
static inline Gli_Obj_t * Gli_ManCi( Gli_Man_t * p, int v ) { return Gli_ManObj( p, Vec_IntEntry(p->vCis,v) ); }
static inline Gli_Obj_t * Gli_ManCo( Gli_Man_t * p, int v ) { return Gli_ManObj( p, Vec_IntEntry(p->vCos,v) ); }
static inline Gli_Obj_t * Gli_ManPi( Gli_Man_t * p, int v ) { assert( v < Gli_ManPiNum(p) ); return Gli_ManCi( p, v ); }
static inline Gli_Obj_t * Gli_ManPo( Gli_Man_t * p, int v ) { assert( v < Gli_ManPoNum(p) ); return Gli_ManCo( p, v ); }
static inline Gli_Obj_t * Gli_ManRo( Gli_Man_t * p, int v ) { assert( v < Gli_ManRegNum(p) ); return Gli_ManCi( p, Gli_ManRegNum(p)+v ); }
static inline Gli_Obj_t * Gli_ManRi( Gli_Man_t * p, int v ) { assert( v < Gli_ManRegNum(p) ); return Gli_ManCo( p, Gli_ManRegNum(p)+v ); }
static inline int Gli_ObjIsTerm( Gli_Obj_t * pObj ) { return pObj->fTerm; }
static inline int Gli_ObjIsCi( Gli_Obj_t * pObj ) { return pObj->fTerm && pObj->nFanins == 0; }
static inline int Gli_ObjIsCo( Gli_Obj_t * pObj ) { return pObj->fTerm && pObj->nFanins == 1; }
static inline int Gli_ObjIsNode( Gli_Obj_t * pObj ) { return!pObj->fTerm; }
static inline int Gli_ObjFaninNum( Gli_Obj_t * pObj ) { return pObj->nFanins; }
static inline int Gli_ObjFanoutNum( Gli_Obj_t * pObj ) { return pObj->nFanouts; }
static inline int Gli_ObjSize( Gli_Obj_t * pObj ) { return sizeof(Gli_Obj_t) / 4 + pObj->nFanins + pObj->nFanouts; }
static inline Gli_Obj_t * Gli_ObjFanin( Gli_Obj_t * pObj, int i ) { return (Gli_Obj_t *)(((int *)pObj) - pObj->Fanios[i]); }
static inline Gli_Obj_t * Gli_ObjFanout( Gli_Obj_t * pObj, int i ) { return (Gli_Obj_t *)(((int *)pObj) + pObj->Fanios[pObj->nFanins+i]); }
#define Gli_ManForEachObj( p, pObj, i ) \
for ( i = 0; (i < p->nObjData) && (pObj = Gli_ManObj(p,i)); i += Gli_ObjSize(pObj) )
#define Gli_ManForEachNode( p, pObj, i ) \
for ( i = 0; (i < p->nObjData) && (pObj = Gli_ManObj(p,i)); i += Gli_ObjSize(pObj) ) if ( Gli_ObjIsTerm(pObj) ) {} else
#define Gli_ManForEachEntry( vVec, p, pObj, i ) \
for ( i = 0; (i < Vec_IntSize(vVec)) && (pObj = Gli_ManObj(p,Vec_IntEntry(vVec,i))); i++ )
#define Gli_ManForEachCi( p, pObj, i ) \
for ( i = 0; (i < Vec_IntSize(p->vCis)) && (pObj = Gli_ManObj(p,Vec_IntEntry(p->vCis,i))); i++ )
#define Gli_ManForEachCo( p, pObj, i ) \
for ( i = 0; (i < Vec_IntSize(p->vCos)) && (pObj = Gli_ManObj(p,Vec_IntEntry(p->vCos,i))); i++ )
#define Gli_ManForEachPi( p, pObj, i ) \
for ( i = 0; (i < Gli_ManPiNum(p)) && ((pObj) = Gli_ManCi(p, i)); i++ )
#define Gli_ManForEachPo( p, pObj, i ) \
for ( i = 0; (i < Gli_ManPoNum(p)) && ((pObj) = Gli_ManCo(p, i)); i++ )
#define Gli_ManForEachRo( p, pObj, i ) \
for ( i = 0; (i < Gli_ManRegNum(p)) && ((pObj) = Gli_ManCi(p, Gli_ManPiNum(p)+i)); i++ )
#define Gli_ManForEachRi( p, pObj, i ) \
for ( i = 0; (i < Gli_ManRegNum(p)) && ((pObj) = Gli_ManCo(p, Gli_ManPoNum(p)+i)); i++ )
#define Gli_ManForEachRiRo( p, pObjRi, pObjRo, i ) \
for ( i = 0; (i < Gli_ManRegNum(p)) && ((pObjRi) = Gli_ManCo(p, Gli_ManPoNum(p)+i)) && ((pObjRo) = Gli_ManCi(p, Gli_ManPiNum(p)+i)); i++ )
#define Gli_ObjForEachFanin( pObj, pNext, i ) \
for ( i = 0; (i < (int)pObj->nFanins) && (pNext = Gli_ObjFanin(pObj,i)); i++ )
#define Gli_ObjForEachFanout( pObj, pNext, i ) \
for ( i = 0; (i < (int)pObj->nFanouts) && (pNext = Gli_ObjFanout(pObj,i)); i++ )
////////////////////////////////////////////////////////////////////////
/// FUNCTION DEFINITIONS ///
////////////////////////////////////////////////////////////////////////
/**Function*************************************************************
Synopsis [Creates logic network.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
Gli_Man_t * Gli_ManAlloc( int nObjs, int nRegs, int nFanioPairs )
{
Gli_Man_t * p;
p = (Gli_Man_t *)ABC_CALLOC( int, (sizeof(Gli_Man_t) / 4) + (sizeof(Gli_Obj_t) / 4) * nObjs + 2 * nFanioPairs );
p->nRegs = nRegs;
p->vCis = Vec_IntAlloc( 1000 );
p->vCos = Vec_IntAlloc( 1000 );
p->vCisChanged = Vec_IntAlloc( 1000 );
p->vAffected = Vec_IntAlloc( 1000 );
p->vFrontier = Vec_IntAlloc( 1000 );
p->nObjData = (sizeof(Gli_Obj_t) / 4) * nObjs + 2 * nFanioPairs;
p->pObjData = (int *)(p + 1);
return p;
}
/**Function*************************************************************
Synopsis [Deletes logic network.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Gli_ManStop( Gli_Man_t * p )
{
Vec_IntFree( p->vCis );
Vec_IntFree( p->vCos );
Vec_IntFree( p->vCisChanged );
Vec_IntFree( p->vAffected );
Vec_IntFree( p->vFrontier );
ABC_FREE( p->pSimInfoPrev );
ABC_FREE( p );
}
/**Function*************************************************************
Synopsis [Checks logic network.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Gli_ManPrintObjects( Gli_Man_t * p )
{
Gli_Obj_t * pObj, * pNext;
int i, k;
Gli_ManForEachObj( p, pObj, i )
{
printf( "Node %d \n", pObj->Handle );
printf( "Fanins: " );
Gli_ObjForEachFanin( pObj, pNext, k )
printf( "%d ", pNext->Handle );
printf( "\n" );
printf( "Fanouts: " );
Gli_ObjForEachFanout( pObj, pNext, k )
printf( "%d ", pNext->Handle );
printf( "\n" );
}
}
/**Function*************************************************************
Synopsis [Checks logic network.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Gli_ManFinalize( Gli_Man_t * p )
{
Gli_Obj_t * pObj;
int i;
assert( p->iObjData == p->nObjData );
Gli_ManForEachObj( p, pObj, i )
{
assert( pObj->iFanin == (int)pObj->nFanins );
assert( pObj->iFanout == (int)pObj->nFanouts );
pObj->iFanin = 0;
pObj->iFanout = 0;
}
}
/**Function*************************************************************
Synopsis [Creates fanin/fanout pair.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Gli_ObjAddFanin( Gli_Obj_t * pObj, Gli_Obj_t * pFanin )
{
assert( pObj->iFanin < (int)pObj->nFanins );
assert( pFanin->iFanout < (int)pFanin->nFanouts );
pFanin->Fanios[pFanin->nFanins + pFanin->iFanout++] =
pObj->Fanios[pObj->iFanin++] = pObj->Handle - pFanin->Handle;
}
/**Function*************************************************************
Synopsis [Allocates object.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
Gli_Obj_t * Gli_ObjAlloc( Gli_Man_t * p, int nFanins, int nFanouts )
{
Gli_Obj_t * pObj;
pObj = Gli_ManObj( p, p->iObjData );
pObj->Handle = p->iObjData;
pObj->nFanins = nFanins;
pObj->nFanouts = nFanouts;
p->iObjData += Gli_ObjSize( pObj );
p->nObjs++;
return pObj;
}
/**Function*************************************************************
Synopsis [Creates CI.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
int Gli_ManCreateCi( Gli_Man_t * p, int nFanouts )
{
Gli_Obj_t * pObj;
pObj = Gli_ObjAlloc( p, 0, nFanouts );
pObj->fTerm = 1;
Vec_IntPush( p->vCis, pObj->Handle );
return pObj->Handle;
}
/**Function*************************************************************
Synopsis [Creates CO.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
int Gli_ManCreateCo( Gli_Man_t * p, int iFanin )
{
Gli_Obj_t * pObj, * pFanin;
pObj = Gli_ObjAlloc( p, 1, 0 );
pObj->fTerm = 1;
pFanin = Gli_ManObj( p, iFanin );
Gli_ObjAddFanin( pObj, pFanin );
pObj->fPhase = pObj->fPhase2 = pFanin->fPhase;
Vec_IntPush( p->vCos, pObj->Handle );
return pObj->Handle;
}
/**Function*************************************************************
Synopsis [Creates node.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
static inline int Gli_NodeComputeValue( Gli_Obj_t * pNode )
{
int i, Phase = 0;
for ( i = 0; i < (int)pNode->nFanins; i++ )
Phase |= (Gli_ObjFanin(pNode, i)->fPhase << i);
return Abc_InfoHasBit( pNode->uTruth, Phase );
}
/**Function*************************************************************
Synopsis [Creates node.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
static inline int Gli_NodeComputeValue2( Gli_Obj_t * pNode )
{
int i, Phase = 0;
for ( i = 0; i < (int)pNode->nFanins; i++ )
Phase |= (Gli_ObjFanin(pNode, i)->fPhase2 << i);
return Abc_InfoHasBit( pNode->uTruth, Phase );
}
/**Function*************************************************************
Synopsis [Creates node.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
int Gli_ManCreateNode( Gli_Man_t * p, Vec_Int_t * vFanins, int nFanouts, unsigned * puTruth )
{
Gli_Obj_t * pObj, * pFanin;
int i;
assert( Vec_IntSize(vFanins) <= 6 );
pObj = Gli_ObjAlloc( p, Vec_IntSize(vFanins), nFanouts );
Gli_ManForEachEntry( vFanins, p, pFanin, i )
Gli_ObjAddFanin( pObj, pFanin );
pObj->uTruth[0] = puTruth[0];
pObj->uTruth[1] = puTruth[Vec_IntSize(vFanins) == 6];
pObj->fPhase = pObj->fPhase2 = Gli_NodeComputeValue( pObj );
return pObj->Handle;
}
/**Function*************************************************************
Synopsis [Returns the number of switches of the node.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
int Gli_ObjNumSwitches( Gli_Man_t * p, int iNode )
{
return Gli_ManObj( p, iNode )->nSwitches;
}
/**Function*************************************************************
Synopsis [Returns the number of glitches of the node.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
int Gli_ObjNumGlitches( Gli_Man_t * p, int iNode )
{
return Gli_ManObj( p, iNode )->nGlitches;
}
/**Function*************************************************************
Synopsis [Sets random info at the PIs and collects changed PIs.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Gli_ManSetPiRandom( Gli_Man_t * p, float PiTransProb )
{
Gli_Obj_t * pObj;
float Multi = 1.0 / (1 << 16);
int i;
assert( 0.0 < PiTransProb && PiTransProb < 1.0 );
Vec_IntClear( p->vCisChanged );
Gli_ManForEachCi( p, pObj, i )
if ( Multi * (Gia_ManRandom(0) & 0xffff) < PiTransProb )
{
Vec_IntPush( p->vCisChanged, pObj->Handle );
pObj->fPhase ^= 1;
pObj->fPhase2 ^= 1;
pObj->nSwitches++;
pObj->nGlitches++;
}
}
/**Function*************************************************************
Synopsis [Sets random info at the PIs and collects changed PIs.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Gli_ManSetPiFromSaved( Gli_Man_t * p, int iBit )
{
Gli_Obj_t * pObj;
int i;
Vec_IntClear( p->vCisChanged );
Gli_ManForEachCi( p, pObj, i )
if ( (p->pSimInfoPrev[i] ^ pObj->uSimInfo) & (1 << iBit) )
{
Vec_IntPush( p->vCisChanged, pObj->Handle );
pObj->fPhase ^= 1;
pObj->fPhase2 ^= 1;
pObj->nSwitches++;
pObj->nGlitches++;
}
}
/**Function*************************************************************
Synopsis [Computes switching activity of each node.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Gli_ManSwitching( Gli_Man_t * p )
{
Gli_Obj_t * pThis;
int i;
Gli_ManForEachNode( p, pThis, i )
{
if ( ((int)pThis->fPhase) == Gli_NodeComputeValue(pThis) )
continue;
pThis->fPhase ^= 1;
pThis->nSwitches++;
}
}
/**Function*************************************************************
Synopsis [Computes glitching activity of each node.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Gli_ManGlitching( Gli_Man_t * p )
{
Gli_Obj_t * pThis, * pFanout;//, * pOther = Gli_ManObj(p, 41);
int i, k, Handle;
// Gli_ManForEachObj( p, pThis, i )
// assert( pThis->fMark == 0 );
// start the array of affected nodes
Vec_IntClear( p->vAffected );
Vec_IntForEachEntry( p->vCisChanged, Handle, i )
Vec_IntPush( p->vAffected, Handle );
// iteration propagation
while ( Vec_IntSize(p->vAffected) > 0 )
{
// compute the frontier
Vec_IntClear( p->vFrontier );
Gli_ManForEachEntry( p->vAffected, p, pThis, i )
{
Gli_ObjForEachFanout( pThis, pFanout, k )
{
if ( Gli_ObjIsCo(pFanout) )
continue;
if ( pFanout->fMark )
continue;
pFanout->fMark = 1;
Vec_IntPush( p->vFrontier, pFanout->Handle );
}
}
// compute the next set of affected nodes
Vec_IntClear( p->vAffected );
Gli_ManForEachEntry( p->vFrontier, p, pThis, i )
{
pThis->fMark = 0;
if ( ((int)pThis->fPhase2) == Gli_NodeComputeValue2(pThis) )
continue;
pThis->fPhase2 ^= 1;
pThis->nGlitches++;
Vec_IntPush( p->vAffected, pThis->Handle );
}
}
}
/**Function*************************************************************
Synopsis [Checks that the resulting values are the same.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Gli_ManVerify( Gli_Man_t * p )
{
Gli_Obj_t * pObj;
int i;
Gli_ManForEachObj( p, pObj, i )
{
assert( pObj->fPhase == pObj->fPhase2 );
assert( pObj->nGlitches >= pObj->nSwitches );
}
}
/**Function*************************************************************
Synopsis [Simulates one node.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
unsigned Gli_ManSimulateSeqNode( Gli_Man_t * p, Gli_Obj_t * pNode )
{
unsigned pSimInfos[6], Result = 0;
int nFanins = Gli_ObjFaninNum(pNode);
int i, k, Phase;
Gli_Obj_t * pFanin;
assert( nFanins <= 6 );
Gli_ObjForEachFanin( pNode, pFanin, i )
pSimInfos[i] = pFanin->uSimInfo;
for ( i = 0; i < 32; i++ )
{
Phase = 0;
for ( k = 0; k < nFanins; k++ )
if ( (pSimInfos[k] >> i) & 1 )
Phase |= (1 << k);
if ( Abc_InfoHasBit( pNode->uTruth, Phase ) )
Result |= (1 << i);
}
return Result;
}
/**Function*************************************************************
Synopsis [Simulates one node.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
static inline unsigned Gli_ManUpdateRandomInput( unsigned uInfo, float PiTransProb )
{
float Multi = 1.0 / (1 << 16);
int i;
if ( PiTransProb == 0.5 )
return Gia_ManRandom(0);
for ( i = 0; i < 32; i++ )
if ( Multi * (Gia_ManRandom(0) & 0xffff) < PiTransProb )
uInfo ^= (1 << i);
return uInfo;
}
/**Function*************************************************************
Synopsis [Simulates sequential network randomly for the given number of frames.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Gli_ManSimulateSeqPref( Gli_Man_t * p, int nPref )
{
Gli_Obj_t * pObj, * pObjRi, * pObjRo;
int i, f;
// initialize simulation data
Gli_ManForEachPi( p, pObj, i )
pObj->uSimInfo = Gli_ManUpdateRandomInput( pObj->uSimInfo, 0.5 );
Gli_ManForEachRo( p, pObj, i )
pObj->uSimInfo = 0;
for ( f = 0; f < nPref; f++ )
{
// simulate one frame
Gli_ManForEachNode( p, pObj, i )
pObj->uSimInfo = Gli_ManSimulateSeqNode( p, pObj );
Gli_ManForEachRi( p, pObj, i )
pObj->uSimInfo = Gli_ObjFanin(pObj, 0)->uSimInfo;
// initialize the next frame
Gli_ManForEachPi( p, pObj, i )
pObj->uSimInfo = Gli_ManUpdateRandomInput( pObj->uSimInfo, 0.5 );
Gli_ManForEachRiRo( p, pObjRi, pObjRo, i )
pObjRo->uSimInfo = pObjRi->uSimInfo;
}
// save simulation data after nPref timeframes
if ( p->pSimInfoPrev == NULL )
p->pSimInfoPrev = ABC_ALLOC( unsigned, Gli_ManCiNum(p) );
Gli_ManForEachCi( p, pObj, i )
p->pSimInfoPrev[i] = pObj->uSimInfo;
}
/**Function*************************************************************
Synopsis [Initialized object values to be one pattern in the saved data.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Gli_ManSetDataSaved( Gli_Man_t * p, int iBit )
{
Gli_Obj_t * pObj;
int i;
Gli_ManForEachCi( p, pObj, i )
pObj->fPhase = pObj->fPhase2 = ((p->pSimInfoPrev[i] >> iBit) & 1);
Gli_ManForEachNode( p, pObj, i )
pObj->fPhase = pObj->fPhase2 = Gli_NodeComputeValue( pObj );
}
/**Function*************************************************************
Synopsis [Sets random info at the PIs and collects changed PIs.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Gli_ManSetPiRandomSeq( Gli_Man_t * p, float PiTransProb )
{
Gli_Obj_t * pObj, * pObjRi;
float Multi = 1.0 / (1 << 16);
int i;
assert( 0.0 < PiTransProb && PiTransProb < 1.0 );
// transfer data to the COs
Gli_ManForEachCo( p, pObj, i )
pObj->fPhase = pObj->fPhase2 = Gli_ObjFanin(pObj, 0)->fPhase;
// set changed PIs
Vec_IntClear( p->vCisChanged );
Gli_ManForEachPi( p, pObj, i )
if ( Multi * (Gia_ManRandom(0) & 0xffff) < PiTransProb )
{
Vec_IntPush( p->vCisChanged, pObj->Handle );
pObj->fPhase ^= 1;
pObj->fPhase2 ^= 1;
pObj->nSwitches++;
pObj->nGlitches++;
}
// set changed ROs
Gli_ManForEachRiRo( p, pObjRi, pObj, i )
if ( pObjRi->fPhase != pObj->fPhase )
{
Vec_IntPush( p->vCisChanged, pObj->Handle );
pObj->fPhase ^= 1;
pObj->fPhase2 ^= 1;
pObj->nSwitches++;
pObj->nGlitches++;
}
}
/**Function*************************************************************
Synopsis [Computes glitching activity of each node.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Gli_ManSwitchesAndGlitches( Gli_Man_t * p, int nPatterns, float PiTransProb, int fVerbose )
{
int i, k;
clock_t clk = clock();
Gia_ManRandom( 1 );
Gli_ManFinalize( p );
if ( p->nRegs == 0 )
{
for ( i = 0; i < nPatterns; i++ )
{
Gli_ManSetPiRandom( p, PiTransProb );
Gli_ManSwitching( p );
Gli_ManGlitching( p );
// Gli_ManVerify( p );
}
}
else
{
int nIters = Abc_BitWordNum(nPatterns);
Gli_ManSimulateSeqPref( p, 16 );
for ( i = 0; i < 32; i++ )
{
Gli_ManSetDataSaved( p, i );
for ( k = 0; k < nIters; k++ )
{
Gli_ManSetPiRandomSeq( p, PiTransProb );
Gli_ManSwitching( p );
Gli_ManGlitching( p );
// Gli_ManVerify( p );
}
}
}
if ( fVerbose )
{
printf( "\nSimulated %d patterns. ", nPatterns );
ABC_PRMn( "Memory", 4*p->nObjData );
ABC_PRT( "Time", clock() - clk );
}
}
////////////////////////////////////////////////////////////////////////
/// END OF FILE ///
////////////////////////////////////////////////////////////////////////
ABC_NAMESPACE_IMPL_END
|
