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
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
|
/* kvx-dis.c -- Kalray MPPA generic disassembler.
Copyright (C) 2009-2023 Free Software Foundation, Inc.
Contributed by Kalray SA.
This file is part of the GNU opcodes library.
This library is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3, or (at your option)
any later version.
It is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
License for more details.
You should have received a copy of the GNU General Public License
along with this program; see the file COPYING3. If not,
see <http://www.gnu.org/licenses/>. */
#define STATIC_TABLE
#define DEFINE_TABLE
#include "sysdep.h"
#include "disassemble.h"
#include "libiberty.h"
#include "opintl.h"
#include <assert.h>
#include "elf-bfd.h"
#include "kvx-dis.h"
#include "elf/kvx.h"
#include "opcode/kvx.h"
/* Steering values for the kvx VLIW architecture. */
typedef enum
{
Steering_BCU,
Steering_LSU,
Steering_MAU,
Steering_ALU,
Steering__
} enum_Steering;
typedef uint8_t Steering;
/* BundleIssue enumeration. */
typedef enum
{
BundleIssue_BCU,
BundleIssue_TCA,
BundleIssue_ALU0,
BundleIssue_ALU1,
BundleIssue_MAU,
BundleIssue_LSU,
BundleIssue__,
} enum_BundleIssue;
typedef uint8_t BundleIssue;
/* An IMMX syllable is associated with the BundleIssue Extension_BundleIssue[extension]. */
static const BundleIssue Extension_BundleIssue[] = {
BundleIssue_ALU0,
BundleIssue_ALU1,
BundleIssue_MAU,
BundleIssue_LSU
};
static inline int
kvx_steering (uint32_t x)
{
return (((x) & 0x60000000) >> 29);
}
static inline int
kvx_extension (uint32_t x)
{
return (((x) & 0x18000000) >> 27);
}
static inline int
kvx_has_parallel_bit (uint32_t x)
{
return (((x) & 0x80000000) == 0x80000000);
}
static inline int
kvx_is_tca_opcode (uint32_t x)
{
unsigned major = ((x) >> 24) & 0x1F;
return (major > 1) && (major < 8);
}
static inline int
kvx_is_nop_opcode (uint32_t x)
{
return ((x) << 1) == 0xFFFFFFFE;
}
/* A raw instruction. */
struct insn_s
{
uint32_t syllables[KVXMAXSYLLABLES];
int len;
};
typedef struct insn_s insn_t;
static uint32_t bundle_words[KVXMAXBUNDLEWORDS];
static insn_t bundle_insn[KVXMAXBUNDLEISSUE];
/* A re-interpreted instruction. */
struct instr_s
{
int valid;
int opcode;
int immx[2];
int immx_valid[2];
int immx_count;
int nb_syllables;
};
/* Option for "pretty printing", ie, not the usual little endian objdump output. */
static int opt_pretty = 0;
/* Option for not emiting a new line between all bundles. */
static int opt_compact_assembly = 0;
void
parse_kvx_dis_option (const char *option)
{
/* Try to match options that are simple flags. */
if (startswith (option, "pretty"))
{
opt_pretty = 1;
return;
}
if (startswith (option, "compact-assembly"))
{
opt_compact_assembly = 1;
return;
}
if (startswith (option, "no-compact-assembly"))
{
opt_compact_assembly = 0;
return;
}
/* Invalid option. */
opcodes_error_handler (_("unrecognised disassembler option: %s"), option);
}
static void
parse_kvx_dis_options (const char *options)
{
const char *option_end;
if (options == NULL)
return;
while (*options != '\0')
{
/* Skip empty options. */
if (*options == ',')
{
options++;
continue;
}
/* We know that *options is neither NUL or a comma. */
option_end = options + 1;
while (*option_end != ',' && *option_end != '\0')
option_end++;
parse_kvx_dis_option (options);
/* Go on to the next one. If option_end points to a comma, it
will be skipped above. */
options = option_end;
}
}
struct kvx_dis_env
{
int kvx_arch_size;
struct kvxopc *opc_table;
struct kvx_Register *kvx_registers;
const char ***kvx_modifiers;
int *kvx_dec_registers;
int *kvx_regfiles;
unsigned int kvx_max_dec_registers;
int initialized_p;
};
static struct kvx_dis_env env = {
.kvx_arch_size = 0,
.opc_table = NULL,
.kvx_registers = NULL,
.kvx_modifiers = NULL,
.kvx_dec_registers = NULL,
.kvx_regfiles = NULL,
.initialized_p = 0,
.kvx_max_dec_registers = 0
};
static void
kvx_dis_init (struct disassemble_info *info)
{
env.kvx_arch_size = 32;
switch (info->mach)
{
case bfd_mach_kv3_1_64:
env.kvx_arch_size = 64;
/* fallthrough */
case bfd_mach_kv3_1_usr:
case bfd_mach_kv3_1:
default:
env.opc_table = kvx_kv3_v1_optab;
env.kvx_regfiles = kvx_kv3_v1_regfiles;
env.kvx_registers = kvx_kv3_v1_registers;
env.kvx_modifiers = kvx_kv3_v1_modifiers;
env.kvx_dec_registers = kvx_kv3_v1_dec_registers;
break;
case bfd_mach_kv3_2_64:
env.kvx_arch_size = 64;
/* fallthrough */
case bfd_mach_kv3_2_usr:
case bfd_mach_kv3_2:
env.opc_table = kvx_kv3_v2_optab;
env.kvx_regfiles = kvx_kv3_v2_regfiles;
env.kvx_registers = kvx_kv3_v2_registers;
env.kvx_modifiers = kvx_kv3_v2_modifiers;
env.kvx_dec_registers = kvx_kv3_v2_dec_registers;
break;
case bfd_mach_kv4_1_64:
env.kvx_arch_size = 64;
/* fallthrough */
case bfd_mach_kv4_1_usr:
case bfd_mach_kv4_1:
env.opc_table = kvx_kv4_v1_optab;
env.kvx_regfiles = kvx_kv4_v1_regfiles;
env.kvx_registers = kvx_kv4_v1_registers;
env.kvx_modifiers = kvx_kv4_v1_modifiers;
env.kvx_dec_registers = kvx_kv4_v1_dec_registers;
break;
}
env.kvx_max_dec_registers = env.kvx_regfiles[KVX_REGFILE_DEC_REGISTERS];
if (info->disassembler_options)
parse_kvx_dis_options (info->disassembler_options);
env.initialized_p = 1;
}
static bool
kvx_reassemble_bundle (int wordcount, int *_insncount)
{
/* Debugging flag. */
int debug = 0;
/* Available resources. */
int bcu_taken = 0;
int tca_taken = 0;
int alu0_taken = 0;
int alu1_taken = 0;
int mau_taken = 0;
int lsu_taken = 0;
if (debug)
fprintf (stderr, "kvx_reassemble_bundle: wordcount = %d\n", wordcount);
if (wordcount > KVXMAXBUNDLEWORDS)
{
if (debug)
fprintf (stderr, "bundle exceeds maximum size\n");
return false;
}
struct instr_s instr[KVXMAXBUNDLEISSUE];
memset (instr, 0, sizeof (instr));
assert (KVXMAXBUNDLEISSUE >= BundleIssue__);
int i;
unsigned int j;
for (i = 0; i < wordcount; i++)
{
uint32_t syllable = bundle_words[i];
switch (kvx_steering (syllable))
{
case Steering_BCU:
/* BCU or TCA instruction. */
if (i == 0)
{
if (kvx_is_tca_opcode (syllable))
{
if (tca_taken)
{
if (debug)
fprintf (stderr, "Too many TCA instructions");
return false;
}
if (debug)
fprintf (stderr,
"Syllable 0: Set valid on TCA for instr %d with 0x%x\n",
BundleIssue_TCA, syllable);
instr[BundleIssue_TCA].valid = 1;
instr[BundleIssue_TCA].opcode = syllable;
instr[BundleIssue_TCA].nb_syllables = 1;
tca_taken = 1;
}
else
{
if (debug)
fprintf (stderr,
"Syllable 0: Set valid on BCU for instr %d with 0x%x\n",
BundleIssue_BCU, syllable);
instr[BundleIssue_BCU].valid = 1;
instr[BundleIssue_BCU].opcode = syllable;
instr[BundleIssue_BCU].nb_syllables = 1;
bcu_taken = 1;
}
}
else
{
if (i == 1 && bcu_taken && kvx_is_tca_opcode (syllable))
{
if (tca_taken)
{
if (debug)
fprintf (stderr, "Too many TCA instructions");
return false;
}
if (debug)
fprintf (stderr,
"Syllable 0: Set valid on TCA for instr %d with 0x%x\n",
BundleIssue_TCA, syllable);
instr[BundleIssue_TCA].valid = 1;
instr[BundleIssue_TCA].opcode = syllable;
instr[BundleIssue_TCA].nb_syllables = 1;
tca_taken = 1;
}
else
{
/* Not first syllable in bundle, IMMX. */
struct instr_s *instr_p =
&(instr[Extension_BundleIssue[kvx_extension (syllable)]]);
int immx_count = instr_p->immx_count;
if (immx_count > 1)
{
if (debug)
fprintf (stderr, "Too many IMMX syllables");
return false;
}
instr_p->immx[immx_count] = syllable;
instr_p->immx_valid[immx_count] = 1;
instr_p->nb_syllables++;
if (debug)
fprintf (stderr,
"Set IMMX[%d] on instr %d for extension %d @ %d\n",
immx_count,
Extension_BundleIssue[kvx_extension (syllable)],
kvx_extension (syllable), i);
instr_p->immx_count = immx_count + 1;
}
}
break;
case Steering_ALU:
if (alu0_taken == 0)
{
if (debug)
fprintf (stderr, "Set valid on ALU0 for instr %d with 0x%x\n",
BundleIssue_ALU0, syllable);
instr[BundleIssue_ALU0].valid = 1;
instr[BundleIssue_ALU0].opcode = syllable;
instr[BundleIssue_ALU0].nb_syllables = 1;
alu0_taken = 1;
}
else if (alu1_taken == 0)
{
if (debug)
fprintf (stderr, "Set valid on ALU1 for instr %d with 0x%x\n",
BundleIssue_ALU1, syllable);
instr[BundleIssue_ALU1].valid = 1;
instr[BundleIssue_ALU1].opcode = syllable;
instr[BundleIssue_ALU1].nb_syllables = 1;
alu1_taken = 1;
}
else if (mau_taken == 0)
{
if (debug)
fprintf (stderr,
"Set valid on MAU (ALU) for instr %d with 0x%x\n",
BundleIssue_MAU, syllable);
instr[BundleIssue_MAU].valid = 1;
instr[BundleIssue_MAU].opcode = syllable;
instr[BundleIssue_MAU].nb_syllables = 1;
mau_taken = 1;
}
else if (lsu_taken == 0)
{
if (debug)
fprintf (stderr,
"Set valid on LSU (ALU) for instr %d with 0x%x\n",
BundleIssue_LSU, syllable);
instr[BundleIssue_LSU].valid = 1;
instr[BundleIssue_LSU].opcode = syllable;
instr[BundleIssue_LSU].nb_syllables = 1;
lsu_taken = 1;
}
else if (kvx_is_nop_opcode (syllable))
{
if (debug)
fprintf (stderr, "Ignoring NOP (ALU) syllable\n");
}
else
{
if (debug)
fprintf (stderr, "Too many ALU instructions");
return false;
}
break;
case Steering_MAU:
if (mau_taken == 1)
{
if (debug)
fprintf (stderr, "Too many MAU instructions");
return false;
}
else
{
if (debug)
fprintf (stderr, "Set valid on MAU for instr %d with 0x%x\n",
BundleIssue_MAU, syllable);
instr[BundleIssue_MAU].valid = 1;
instr[BundleIssue_MAU].opcode = syllable;
instr[BundleIssue_MAU].nb_syllables = 1;
mau_taken = 1;
}
break;
case Steering_LSU:
if (lsu_taken == 1)
{
if (debug)
fprintf (stderr, "Too many LSU instructions");
return false;
}
else
{
if (debug)
fprintf (stderr, "Set valid on LSU for instr %d with 0x%x\n",
BundleIssue_LSU, syllable);
instr[BundleIssue_LSU].valid = 1;
instr[BundleIssue_LSU].opcode = syllable;
instr[BundleIssue_LSU].nb_syllables = 1;
lsu_taken = 1;
}
}
if (debug)
fprintf (stderr, "Continue %d < %d?\n", i, wordcount);
}
/* Fill bundle_insn and count read syllables. */
int instr_idx = 0;
for (i = 0; i < KVXMAXBUNDLEISSUE; i++)
{
if (instr[i].valid == 1)
{
int syllable_idx = 0;
/* First copy opcode. */
bundle_insn[instr_idx].syllables[syllable_idx++] = instr[i].opcode;
bundle_insn[instr_idx].len = 1;
for (j = 0; j < 2; j++)
{
if (instr[i].immx_valid[j])
{
if (debug)
fprintf (stderr, "Instr %d valid immx[%d] is valid\n", i,
j);
bundle_insn[instr_idx].syllables[syllable_idx++] =
instr[i].immx[j];
bundle_insn[instr_idx].len++;
}
}
if (debug)
fprintf (stderr,
"Instr %d valid, copying in bundle_insn (%d syllables <-> %d)\n",
i, bundle_insn[instr_idx].len, instr[i].nb_syllables);
instr_idx++;
}
}
if (debug)
fprintf (stderr, "End => %d instructions\n", instr_idx);
*_insncount = instr_idx;
return true;
}
struct decoded_insn
{
/* The entry in the opc_table. */
struct kvxopc *opc;
/* The number of operands. */
int nb_ops;
/* The content of an operands. */
struct
{
enum
{
CAT_REGISTER,
CAT_MODIFIER,
CAT_IMMEDIATE,
} type;
/* The value of the operands. */
uint64_t val;
/* If it is an immediate, its sign. */
int sign;
/* If it is an immediate, is it pc relative. */
int pcrel;
/* The width of the operand. */
int width;
/* If it is a modifier, the modifier category.
An index in the modifier table. */
int mod_idx;
} operands[KVXMAXOPERANDS];
};
static int
decode_insn (bfd_vma memaddr, insn_t * insn, struct decoded_insn *res)
{
int found = 0;
int idx = 0;
for (struct kvxopc * op = env.opc_table;
op->as_op && (((char) op->as_op[0]) != 0); op++)
{
/* Find the format of this insn. */
int opcode_match = 1;
if (op->wordcount != insn->len)
continue;
for (int i = 0; i < op->wordcount; i++)
if ((op->codewords[i].mask & insn->syllables[i]) !=
op->codewords[i].opcode)
opcode_match = 0;
int encoding_space_flags = env.kvx_arch_size == 32
? kvxOPCODE_FLAG_MODE32 : kvxOPCODE_FLAG_MODE64;
for (int i = 0; i < op->wordcount; i++)
if (!(op->codewords[i].flags & encoding_space_flags))
opcode_match = 0;
if (opcode_match)
{
res->opc = op;
for (int i = 0; op->format[i]; i++)
{
struct kvx_bitfield *bf = op->format[i]->bfield;
int bf_nb = op->format[i]->bitfields;
int width = op->format[i]->width;
int type = op->format[i]->type;
const char *type_name = op->format[i]->tname;
int flags = op->format[i]->flags;
int shift = op->format[i]->shift;
int bias = op->format[i]->bias;
uint64_t value = 0;
for (int bf_idx = 0; bf_idx < bf_nb; bf_idx++)
{
int insn_idx = (int) bf[bf_idx].to_offset / 32;
int to_offset = bf[bf_idx].to_offset % 32;
uint64_t encoded_value =
insn->syllables[insn_idx] >> to_offset;
encoded_value &= (1LL << bf[bf_idx].size) - 1;
value |= encoded_value << bf[bf_idx].from_offset;
}
if (flags & kvxSIGNED)
{
uint64_t signbit = 1LL << (width - 1);
value = (value ^ signbit) - signbit;
}
value = (value << shift) + bias;
#define KVX_PRINT_REG(regfile,value) \
if(env.kvx_regfiles[regfile]+value < env.kvx_max_dec_registers) { \
res->operands[idx].val = env.kvx_dec_registers[env.kvx_regfiles[regfile]+value]; \
res->operands[idx].type = CAT_REGISTER; \
idx++; \
} else { \
res->operands[idx].val = ~0; \
res->operands[idx].type = CAT_REGISTER; \
idx++; \
}
if (env.opc_table == kvx_kv3_v1_optab)
{
switch (type)
{
case RegClass_kv3_v1_singleReg:
KVX_PRINT_REG (KVX_REGFILE_DEC_GPR, value)
break;
case RegClass_kv3_v1_pairedReg:
KVX_PRINT_REG (KVX_REGFILE_DEC_PGR, value)
break;
case RegClass_kv3_v1_quadReg:
KVX_PRINT_REG (KVX_REGFILE_DEC_QGR, value)
break;
case RegClass_kv3_v1_systemReg:
case RegClass_kv3_v1_aloneReg:
case RegClass_kv3_v1_onlyraReg:
case RegClass_kv3_v1_onlygetReg:
case RegClass_kv3_v1_onlysetReg:
case RegClass_kv3_v1_onlyfxReg:
KVX_PRINT_REG (KVX_REGFILE_DEC_SFR, value)
break;
case RegClass_kv3_v1_coproReg0M4:
case RegClass_kv3_v1_coproReg1M4:
case RegClass_kv3_v1_coproReg2M4:
case RegClass_kv3_v1_coproReg3M4:
KVX_PRINT_REG (KVX_REGFILE_DEC_XCR, value)
break;
case RegClass_kv3_v1_blockRegE:
case RegClass_kv3_v1_blockRegO:
case RegClass_kv3_v1_blockReg0M4:
case RegClass_kv3_v1_blockReg1M4:
case RegClass_kv3_v1_blockReg2M4:
case RegClass_kv3_v1_blockReg3M4:
KVX_PRINT_REG (KVX_REGFILE_DEC_XBR, value)
break;
case RegClass_kv3_v1_vectorReg:
case RegClass_kv3_v1_vectorRegE:
case RegClass_kv3_v1_vectorRegO:
KVX_PRINT_REG (KVX_REGFILE_DEC_XVR, value)
break;
case RegClass_kv3_v1_tileReg:
KVX_PRINT_REG (KVX_REGFILE_DEC_XTR, value)
break;
case RegClass_kv3_v1_matrixReg:
KVX_PRINT_REG (KVX_REGFILE_DEC_XMR, value)
break;
case Immediate_kv3_v1_sysnumber:
case Immediate_kv3_v1_signed10:
case Immediate_kv3_v1_signed16:
case Immediate_kv3_v1_signed27:
case Immediate_kv3_v1_wrapped32:
case Immediate_kv3_v1_signed37:
case Immediate_kv3_v1_signed43:
case Immediate_kv3_v1_signed54:
case Immediate_kv3_v1_wrapped64:
case Immediate_kv3_v1_unsigned6:
res->operands[idx].val = value;
res->operands[idx].sign = flags & kvxSIGNED;
res->operands[idx].width = width;
res->operands[idx].type = CAT_IMMEDIATE;
res->operands[idx].pcrel = 0;
idx++;
break;
case Immediate_kv3_v1_pcrel17:
case Immediate_kv3_v1_pcrel27:
res->operands[idx].val = value + memaddr;
res->operands[idx].sign = flags & kvxSIGNED;
res->operands[idx].width = width;
res->operands[idx].type = CAT_IMMEDIATE;
res->operands[idx].pcrel = 1;
idx++;
break;
case Modifier_kv3_v1_column:
case Modifier_kv3_v1_comparison:
case Modifier_kv3_v1_doscale:
case Modifier_kv3_v1_exunum:
case Modifier_kv3_v1_floatcomp:
case Modifier_kv3_v1_qindex:
case Modifier_kv3_v1_rectify:
case Modifier_kv3_v1_rounding:
case Modifier_kv3_v1_roundint:
case Modifier_kv3_v1_saturate:
case Modifier_kv3_v1_scalarcond:
case Modifier_kv3_v1_silent:
case Modifier_kv3_v1_simplecond:
case Modifier_kv3_v1_speculate:
case Modifier_kv3_v1_splat32:
case Modifier_kv3_v1_variant:
{
int sz = 0;
int mod_idx = type - Modifier_kv3_v1_column;
for (sz = 0; env.kvx_modifiers[mod_idx][sz]; ++sz);
const char *mod = value < (unsigned) sz
? env.kvx_modifiers[mod_idx][value] : NULL;
if (!mod) goto retry;
res->operands[idx].val = value;
res->operands[idx].type = CAT_MODIFIER;
res->operands[idx].mod_idx = mod_idx;
idx++;
}
break;
default:
fprintf (stderr, "error: unexpected operand type (%s)\n",
type_name);
exit (-1);
};
}
else if (env.opc_table == kvx_kv3_v2_optab)
{
switch (type)
{
case RegClass_kv3_v2_singleReg:
KVX_PRINT_REG (KVX_REGFILE_DEC_GPR, value)
break;
case RegClass_kv3_v2_pairedReg:
KVX_PRINT_REG (KVX_REGFILE_DEC_PGR, value)
break;
case RegClass_kv3_v2_quadReg:
KVX_PRINT_REG (KVX_REGFILE_DEC_QGR, value)
break;
case RegClass_kv3_v2_systemReg:
case RegClass_kv3_v2_aloneReg:
case RegClass_kv3_v2_onlyraReg:
case RegClass_kv3_v2_onlygetReg:
case RegClass_kv3_v2_onlysetReg:
case RegClass_kv3_v2_onlyfxReg:
KVX_PRINT_REG (KVX_REGFILE_DEC_SFR, value)
break;
case RegClass_kv3_v2_coproReg:
case RegClass_kv3_v2_coproReg0M4:
case RegClass_kv3_v2_coproReg1M4:
case RegClass_kv3_v2_coproReg2M4:
case RegClass_kv3_v2_coproReg3M4:
KVX_PRINT_REG (KVX_REGFILE_DEC_XCR, value)
break;
case RegClass_kv3_v2_blockReg:
case RegClass_kv3_v2_blockRegE:
case RegClass_kv3_v2_blockRegO:
KVX_PRINT_REG (KVX_REGFILE_DEC_XBR, value)
break;
case RegClass_kv3_v2_vectorReg:
KVX_PRINT_REG (KVX_REGFILE_DEC_XVR, value)
break;
case RegClass_kv3_v2_tileReg:
KVX_PRINT_REG (KVX_REGFILE_DEC_XTR, value)
break;
case RegClass_kv3_v2_matrixReg:
KVX_PRINT_REG (KVX_REGFILE_DEC_XMR, value)
break;
case RegClass_kv3_v2_buffer2Reg:
KVX_PRINT_REG (KVX_REGFILE_DEC_X2R, value)
break;
case RegClass_kv3_v2_buffer4Reg:
KVX_PRINT_REG (KVX_REGFILE_DEC_X4R, value)
break;
case RegClass_kv3_v2_buffer8Reg:
KVX_PRINT_REG (KVX_REGFILE_DEC_X8R, value)
break;
case RegClass_kv3_v2_buffer16Reg:
KVX_PRINT_REG (KVX_REGFILE_DEC_X16R, value)
break;
case RegClass_kv3_v2_buffer32Reg:
KVX_PRINT_REG (KVX_REGFILE_DEC_X32R, value)
break;
case RegClass_kv3_v2_buffer64Reg:
KVX_PRINT_REG (KVX_REGFILE_DEC_X64R, value)
break;
case Immediate_kv3_v2_brknumber:
case Immediate_kv3_v2_sysnumber:
case Immediate_kv3_v2_signed10:
case Immediate_kv3_v2_signed16:
case Immediate_kv3_v2_signed27:
case Immediate_kv3_v2_wrapped32:
case Immediate_kv3_v2_signed37:
case Immediate_kv3_v2_signed43:
case Immediate_kv3_v2_signed54:
case Immediate_kv3_v2_wrapped64:
case Immediate_kv3_v2_unsigned6:
res->operands[idx].val = value;
res->operands[idx].sign = flags & kvxSIGNED;
res->operands[idx].width = width;
res->operands[idx].type = CAT_IMMEDIATE;
res->operands[idx].pcrel = 0;
idx++;
break;
case Immediate_kv3_v2_pcrel27:
case Immediate_kv3_v2_pcrel17:
res->operands[idx].val = value + memaddr;
res->operands[idx].sign = flags & kvxSIGNED;
res->operands[idx].width = width;
res->operands[idx].type = CAT_IMMEDIATE;
res->operands[idx].pcrel = 1;
idx++;
break;
case Modifier_kv3_v2_accesses:
case Modifier_kv3_v2_boolcas:
case Modifier_kv3_v2_cachelev:
case Modifier_kv3_v2_channel:
case Modifier_kv3_v2_coherency:
case Modifier_kv3_v2_comparison:
case Modifier_kv3_v2_conjugate:
case Modifier_kv3_v2_doscale:
case Modifier_kv3_v2_exunum:
case Modifier_kv3_v2_floatcomp:
case Modifier_kv3_v2_hindex:
case Modifier_kv3_v2_lsomask:
case Modifier_kv3_v2_lsumask:
case Modifier_kv3_v2_lsupack:
case Modifier_kv3_v2_qindex:
case Modifier_kv3_v2_rounding:
case Modifier_kv3_v2_scalarcond:
case Modifier_kv3_v2_shuffleV:
case Modifier_kv3_v2_shuffleX:
case Modifier_kv3_v2_silent:
case Modifier_kv3_v2_simplecond:
case Modifier_kv3_v2_speculate:
case Modifier_kv3_v2_splat32:
case Modifier_kv3_v2_transpose:
case Modifier_kv3_v2_variant:
{
int sz = 0;
int mod_idx = type - Modifier_kv3_v2_accesses;
for (sz = 0; env.kvx_modifiers[mod_idx][sz];
++sz);
const char *mod = value < (unsigned) sz
? env.kvx_modifiers[mod_idx][value] : NULL;
if (!mod) goto retry;
res->operands[idx].val = value;
res->operands[idx].type = CAT_MODIFIER;
res->operands[idx].mod_idx = mod_idx;
idx++;
};
break;
default:
fprintf (stderr,
"error: unexpected operand type (%s)\n",
type_name);
exit (-1);
};
}
else if (env.opc_table == kvx_kv4_v1_optab)
{
switch (type)
{
case RegClass_kv4_v1_singleReg:
KVX_PRINT_REG (KVX_REGFILE_DEC_GPR, value)
break;
case RegClass_kv4_v1_pairedReg:
KVX_PRINT_REG (KVX_REGFILE_DEC_PGR, value)
break;
case RegClass_kv4_v1_quadReg:
KVX_PRINT_REG (KVX_REGFILE_DEC_QGR, value)
break;
case RegClass_kv4_v1_systemReg:
case RegClass_kv4_v1_aloneReg:
case RegClass_kv4_v1_onlyraReg:
case RegClass_kv4_v1_onlygetReg:
case RegClass_kv4_v1_onlysetReg:
case RegClass_kv4_v1_onlyfxReg:
KVX_PRINT_REG (KVX_REGFILE_DEC_SFR, value)
break;
case RegClass_kv4_v1_coproReg:
case RegClass_kv4_v1_coproReg0M4:
case RegClass_kv4_v1_coproReg1M4:
case RegClass_kv4_v1_coproReg2M4:
case RegClass_kv4_v1_coproReg3M4:
KVX_PRINT_REG (KVX_REGFILE_DEC_XCR, value)
break;
case RegClass_kv4_v1_blockReg:
case RegClass_kv4_v1_blockRegE:
case RegClass_kv4_v1_blockRegO:
KVX_PRINT_REG (KVX_REGFILE_DEC_XBR, value)
break;
case RegClass_kv4_v1_vectorReg:
KVX_PRINT_REG (KVX_REGFILE_DEC_XVR, value)
break;
case RegClass_kv4_v1_tileReg:
KVX_PRINT_REG (KVX_REGFILE_DEC_XTR, value)
break;
case RegClass_kv4_v1_matrixReg:
KVX_PRINT_REG (KVX_REGFILE_DEC_XMR, value)
break;
case RegClass_kv4_v1_buffer2Reg:
KVX_PRINT_REG (KVX_REGFILE_DEC_X2R, value)
break;
case RegClass_kv4_v1_buffer4Reg:
KVX_PRINT_REG (KVX_REGFILE_DEC_X4R, value)
break;
case RegClass_kv4_v1_buffer8Reg:
KVX_PRINT_REG (KVX_REGFILE_DEC_X8R, value)
break;
case RegClass_kv4_v1_buffer16Reg:
KVX_PRINT_REG (KVX_REGFILE_DEC_X16R, value)
break;
case RegClass_kv4_v1_buffer32Reg:
KVX_PRINT_REG (KVX_REGFILE_DEC_X32R, value)
break;
case RegClass_kv4_v1_buffer64Reg:
KVX_PRINT_REG (KVX_REGFILE_DEC_X64R, value)
break;
case Immediate_kv4_v1_brknumber:
case Immediate_kv4_v1_sysnumber:
case Immediate_kv4_v1_signed10:
case Immediate_kv4_v1_signed16:
case Immediate_kv4_v1_signed27:
case Immediate_kv4_v1_wrapped32:
case Immediate_kv4_v1_signed37:
case Immediate_kv4_v1_signed43:
case Immediate_kv4_v1_signed54:
case Immediate_kv4_v1_wrapped64:
case Immediate_kv4_v1_unsigned6:
res->operands[idx].val = value;
res->operands[idx].sign = flags & kvxSIGNED;
res->operands[idx].width = width;
res->operands[idx].type = CAT_IMMEDIATE;
res->operands[idx].pcrel = 0;
idx++;
break;
case Immediate_kv4_v1_pcrel27:
case Immediate_kv4_v1_pcrel17:
res->operands[idx].val = value + memaddr;
res->operands[idx].sign = flags & kvxSIGNED;
res->operands[idx].width = width;
res->operands[idx].type = CAT_IMMEDIATE;
res->operands[idx].pcrel = 1;
idx++;
break;
case Modifier_kv4_v1_accesses:
case Modifier_kv4_v1_boolcas:
case Modifier_kv4_v1_cachelev:
case Modifier_kv4_v1_channel:
case Modifier_kv4_v1_coherency:
case Modifier_kv4_v1_comparison:
case Modifier_kv4_v1_conjugate:
case Modifier_kv4_v1_doscale:
case Modifier_kv4_v1_exunum:
case Modifier_kv4_v1_floatcomp:
case Modifier_kv4_v1_hindex:
case Modifier_kv4_v1_lsomask:
case Modifier_kv4_v1_lsumask:
case Modifier_kv4_v1_lsupack:
case Modifier_kv4_v1_qindex:
case Modifier_kv4_v1_rounding:
case Modifier_kv4_v1_scalarcond:
case Modifier_kv4_v1_shuffleV:
case Modifier_kv4_v1_shuffleX:
case Modifier_kv4_v1_silent:
case Modifier_kv4_v1_simplecond:
case Modifier_kv4_v1_speculate:
case Modifier_kv4_v1_splat32:
case Modifier_kv4_v1_transpose:
case Modifier_kv4_v1_variant:
{
int sz = 0;
int mod_idx = type - Modifier_kv4_v1_accesses;
for (sz = 0; env.kvx_modifiers[mod_idx][sz]; ++sz);
const char *mod = value < (unsigned) sz
? env.kvx_modifiers[mod_idx][value] : NULL;
if (!mod) goto retry;
res->operands[idx].val = value;
res->operands[idx].type = CAT_MODIFIER;
res->operands[idx].mod_idx = mod_idx;
idx++;
}
break;
default:
fprintf (stderr, "error: unexpected operand type (%s)\n",
type_name);
exit (-1);
};
}
#undef KVX_PRINT_REG
}
found = 1;
break;
retry:;
idx = 0;
continue;
}
}
res->nb_ops = idx;
return found;
}
int
print_insn_kvx (bfd_vma memaddr, struct disassemble_info *info)
{
static int insnindex = 0;
static int insncount = 0;
insn_t *insn;
int readsofar = 0;
int found = 0;
int invalid_bundle = 0;
if (!env.initialized_p)
kvx_dis_init (info);
/* Clear instruction information field. */
info->insn_info_valid = 0;
info->branch_delay_insns = 0;
info->data_size = 0;
info->insn_type = dis_noninsn;
info->target = 0;
info->target2 = 0;
/* Set line length. */
info->bytes_per_line = 16;
/* If this is the beginning of the bundle, read BUNDLESIZE words and apply
decentrifugate function. */
if (insnindex == 0)
{
int wordcount;
for (wordcount = 0; wordcount < KVXMAXBUNDLEWORDS; wordcount++)
{
int status;
status =
(*info->read_memory_func) (memaddr + 4 * wordcount,
(bfd_byte *) (bundle_words +
wordcount), 4, info);
if (status != 0)
{
(*info->memory_error_func) (status, memaddr + 4 * wordcount,
info);
return -1;
}
if (!kvx_has_parallel_bit (bundle_words[wordcount]))
break;
}
wordcount++;
invalid_bundle = !kvx_reassemble_bundle (wordcount, &insncount);
}
assert (insnindex < KVXMAXBUNDLEISSUE);
insn = &(bundle_insn[insnindex]);
readsofar = insn->len * 4;
insnindex++;
if (opt_pretty)
{
(*info->fprintf_func) (info->stream, "[ ");
for (int i = 0; i < insn->len; i++)
(*info->fprintf_func) (info->stream, "%08x ", insn->syllables[i]);
(*info->fprintf_func) (info->stream, "] ");
}
/* Check for extension to right iff this is not the end of bundle. */
struct decoded_insn dec;
memset (&dec, 0, sizeof dec);
if (!invalid_bundle && (found = decode_insn (memaddr, insn, &dec)))
{
int ch;
(*info->fprintf_func) (info->stream, "%s", dec.opc->as_op);
const char *fmtp = dec.opc->fmtstring;
for (int i = 0; i < dec.nb_ops; ++i)
{
/* Print characters in the format string up to the following % or nul. */
while ((ch = *fmtp) && ch != '%')
{
(*info->fprintf_func) (info->stream, "%c", ch);
fmtp++;
}
/* Skip past %s. */
if (ch == '%')
{
ch = *fmtp++;
fmtp++;
}
switch (dec.operands[i].type)
{
case CAT_REGISTER:
(*info->fprintf_func) (info->stream, "%s",
env.kvx_registers[dec.operands[i].val].name);
break;
case CAT_MODIFIER:
{
const char *mod = env.kvx_modifiers[dec.operands[i].mod_idx][dec.operands[i].val];
(*info->fprintf_func) (info->stream, "%s", !mod || !strcmp (mod, ".") ? "" : mod);
}
break;
case CAT_IMMEDIATE:
{
if (dec.operands[i].pcrel)
{
/* Fill in instruction information. */
info->insn_info_valid = 1;
info->insn_type =
dec.operands[i].width ==
17 ? dis_condbranch : dis_branch;
info->target = dec.operands[i].val;
info->print_address_func (dec.operands[i].val, info);
}
else if (dec.operands[i].sign)
{
if (dec.operands[i].width <= 32)
{
(*info->fprintf_func) (info->stream, "%" PRId32 " (0x%" PRIx32 ")",
(int32_t) dec.operands[i].val,
(int32_t) dec.operands[i].val);
}
else
{
(*info->fprintf_func) (info->stream, "%" PRId64 " (0x%" PRIx64 ")",
dec.operands[i].val,
dec.operands[i].val);
}
}
else
{
if (dec.operands[i].width <= 32)
{
(*info->fprintf_func) (info->stream, "%" PRIu32 " (0x%" PRIx32 ")",
(uint32_t) dec.operands[i].
val,
(uint32_t) dec.operands[i].
val);
}
else
{
(*info->fprintf_func) (info->stream, "%" PRIu64 " (0x%" PRIx64 ")",
(uint64_t) dec.
operands[i].val,
(uint64_t) dec.
operands[i].val);
}
}
}
break;
default:
break;
}
}
while ((ch = *fmtp))
{
(*info->fprintf_styled_func) (info->stream, dis_style_text, "%c",
ch);
fmtp++;
}
}
else
{
(*info->fprintf_func) (info->stream, "*** invalid opcode ***\n");
insnindex = 0;
readsofar = 4;
}
if (found && (insnindex == insncount))
{
(*info->fprintf_func) (info->stream, ";;");
if (!opt_compact_assembly)
(*info->fprintf_func) (info->stream, "\n");
insnindex = 0;
}
return readsofar;
}
/* This function searches in the current bundle for the instructions required
by unwinding. For prologue:
(1) addd $r12 = $r12, <res_stack>
(2) get <gpr_ra_reg> = $ra
(3) sd <ofs>[$r12] = <gpr_ra_reg> or sq/so containing <gpr_ra_reg>
(4) sd <ofs>[$r12] = $r14 or sq/so containing r14
(5) addd $r14 = $r12, <fp_ofs> or copyd $r14 = $r12
The only difference seen between the code generated by gcc and clang
is the setting/resetting r14. gcc could also generate copyd $r14=$r12
instead of add addd $r14 = $r12, <ofs> when <ofs> is 0.
Vice-versa, <ofs> is not guaranteed to be 0 for clang, so, clang
could also generate addd instead of copyd
(6) call, icall, goto, igoto, cb., ret
For epilogue:
(1) addd $r12 = $r12, <res_stack>
(2) addd $r12 = $r14, <offset> or copyd $r12 = $r14
Same comment as prologue (5).
(3) ret, goto
(4) call, icall, igoto, cb. */
int
decode_prologue_epilogue_bundle (bfd_vma memaddr,
struct disassemble_info *info,
struct kvx_prologue_epilogue_bundle *peb)
{
int i, nb_insn, nb_syl;
peb->nb_insn = 0;
if (info->arch != bfd_arch_kvx)
return -1;
if (!env.initialized_p)
kvx_dis_init (info);
/* Read the bundle. */
for (nb_syl = 0; nb_syl < KVXMAXBUNDLEWORDS; nb_syl++)
{
if ((*info->read_memory_func) (memaddr + 4 * nb_syl,
(bfd_byte *) &bundle_words[nb_syl], 4,
info))
return -1;
if (!kvx_has_parallel_bit (bundle_words[nb_syl]))
break;
}
nb_syl++;
if (!kvx_reassemble_bundle (nb_syl, &nb_insn))
return -1;
/* Check for extension to right if this is not the end of bundle
find the format of this insn. */
for (int idx_insn = 0; idx_insn < nb_insn; idx_insn++)
{
insn_t *insn = &bundle_insn[idx_insn];
int is_add = 0, is_get = 0, is_a_peb_insn = 0, is_copyd = 0;
struct decoded_insn dec;
memset (&dec, 0, sizeof dec);
if (!decode_insn (memaddr, insn, &dec))
continue;
const char *op_name = dec.opc->as_op;
struct kvx_prologue_epilogue_insn *crt_peb_insn;
crt_peb_insn = &peb->insn[peb->nb_insn];
crt_peb_insn->nb_gprs = 0;
if (!strcmp (op_name, "addd"))
is_add = 1;
else if (!strcmp (op_name, "copyd"))
is_copyd = 1;
else if (!strcmp (op_name, "get"))
is_get = 1;
else if (!strcmp (op_name, "sd"))
{
crt_peb_insn->insn_type = KVX_PROL_EPIL_INSN_SD;
is_a_peb_insn = 1;
}
else if (!strcmp (op_name, "sq"))
{
crt_peb_insn->insn_type = KVX_PROL_EPIL_INSN_SQ;
is_a_peb_insn = 1;
}
else if (!strcmp (op_name, "so"))
{
crt_peb_insn->insn_type = KVX_PROL_EPIL_INSN_SO;
is_a_peb_insn = 1;
}
else if (!strcmp (op_name, "ret"))
{
crt_peb_insn->insn_type = KVX_PROL_EPIL_INSN_RET;
is_a_peb_insn = 1;
}
else if (!strcmp (op_name, "goto"))
{
crt_peb_insn->insn_type = KVX_PROL_EPIL_INSN_GOTO;
is_a_peb_insn = 1;
}
else if (!strcmp (op_name, "igoto"))
{
crt_peb_insn->insn_type = KVX_PROL_EPIL_INSN_IGOTO;
is_a_peb_insn = 1;
}
else if (!strcmp (op_name, "call") || !strcmp (op_name, "icall"))
{
crt_peb_insn->insn_type = KVX_PROL_EPIL_INSN_CALL;
is_a_peb_insn = 1;
}
else if (!strncmp (op_name, "cb", 2))
{
crt_peb_insn->insn_type = KVX_PROL_EPIL_INSN_CB;
is_a_peb_insn = 1;
}
else
continue;
for (i = 0; dec.opc->format[i]; i++)
{
struct kvx_operand *fmt = dec.opc->format[i];
struct kvx_bitfield *bf = fmt->bfield;
int bf_nb = fmt->bitfields;
int width = fmt->width;
int type = fmt->type;
int flags = fmt->flags;
int shift = fmt->shift;
int bias = fmt->bias;
uint64_t encoded_value, value = 0;
for (int bf_idx = 0; bf_idx < bf_nb; bf_idx++)
{
int insn_idx = (int) bf[bf_idx].to_offset / 32;
int to_offset = bf[bf_idx].to_offset % 32;
encoded_value = insn->syllables[insn_idx] >> to_offset;
encoded_value &= (1LL << bf[bf_idx].size) - 1;
value |= encoded_value << bf[bf_idx].from_offset;
}
if (flags & kvxSIGNED)
{
uint64_t signbit = 1LL << (width - 1);
value = (value ^ signbit) - signbit;
}
value = (value << shift) + bias;
#define chk_type(core_, val_) \
(env.opc_table == kvx_## core_ ##_optab && type == (val_))
if (chk_type (kv3_v1, RegClass_kv3_v1_singleReg)
|| chk_type (kv3_v2, RegClass_kv3_v2_singleReg)
|| chk_type (kv4_v1, RegClass_kv4_v1_singleReg))
{
if (env.kvx_regfiles[KVX_REGFILE_DEC_GPR] + value
>= env.kvx_max_dec_registers)
return -1;
if (is_add && i < 2)
{
if (i == 0)
{
if (value == KVX_GPR_REG_SP)
crt_peb_insn->insn_type = KVX_PROL_EPIL_INSN_ADD_SP;
else if (value == KVX_GPR_REG_FP)
crt_peb_insn->insn_type = KVX_PROL_EPIL_INSN_ADD_FP;
else
is_add = 0;
}
else if (i == 1)
{
if (value == KVX_GPR_REG_SP)
is_a_peb_insn = 1;
else if (value == KVX_GPR_REG_FP
&& crt_peb_insn->insn_type
== KVX_PROL_EPIL_INSN_ADD_SP)
{
crt_peb_insn->insn_type
= KVX_PROL_EPIL_INSN_RESTORE_SP_FROM_FP;
is_a_peb_insn = 1;
}
else
is_add = 0;
}
}
else if (is_copyd && i < 2)
{
if (i == 0)
{
if (value == KVX_GPR_REG_FP)
{
crt_peb_insn->insn_type = KVX_PROL_EPIL_INSN_ADD_FP;
crt_peb_insn->immediate = 0;
}
else if (value == KVX_GPR_REG_SP)
{
crt_peb_insn->insn_type
= KVX_PROL_EPIL_INSN_RESTORE_SP_FROM_FP;
crt_peb_insn->immediate = 0;
}
else
is_copyd = 0;
}
else if (i == 1)
{
if (value == KVX_GPR_REG_SP
&& crt_peb_insn->insn_type
== KVX_PROL_EPIL_INSN_ADD_FP)
is_a_peb_insn = 1;
else if (value == KVX_GPR_REG_FP
&& crt_peb_insn->insn_type
== KVX_PROL_EPIL_INSN_RESTORE_SP_FROM_FP)
is_a_peb_insn = 1;
else
is_copyd = 0;
}
}
else
crt_peb_insn->gpr_reg[crt_peb_insn->nb_gprs++] = value;
}
else if (chk_type (kv3_v1, RegClass_kv3_v1_pairedReg)
|| chk_type (kv3_v2, RegClass_kv3_v2_pairedReg)
|| chk_type (kv4_v1, RegClass_kv4_v1_pairedReg))
crt_peb_insn->gpr_reg[crt_peb_insn->nb_gprs++] = value * 2;
else if (chk_type (kv3_v1, RegClass_kv3_v1_quadReg)
|| chk_type (kv3_v2, RegClass_kv3_v2_quadReg)
|| chk_type (kv4_v1, RegClass_kv4_v1_quadReg))
crt_peb_insn->gpr_reg[crt_peb_insn->nb_gprs++] = value * 4;
else if (chk_type (kv3_v1, RegClass_kv3_v1_systemReg)
|| chk_type (kv3_v2, RegClass_kv3_v2_systemReg)
|| chk_type (kv4_v1, RegClass_kv4_v1_systemReg)
|| chk_type (kv3_v1, RegClass_kv3_v1_aloneReg)
|| chk_type (kv3_v2, RegClass_kv3_v2_aloneReg)
|| chk_type (kv4_v1, RegClass_kv4_v1_aloneReg)
|| chk_type (kv3_v1, RegClass_kv3_v1_onlyraReg)
|| chk_type (kv3_v2, RegClass_kv3_v2_onlyraReg)
|| chk_type (kv4_v1, RegClass_kv4_v1_onlygetReg)
|| chk_type (kv3_v1, RegClass_kv3_v1_onlygetReg)
|| chk_type (kv3_v2, RegClass_kv3_v2_onlygetReg)
|| chk_type (kv4_v1, RegClass_kv4_v1_onlygetReg)
|| chk_type (kv3_v1, RegClass_kv3_v1_onlysetReg)
|| chk_type (kv3_v2, RegClass_kv3_v2_onlysetReg)
|| chk_type (kv4_v1, RegClass_kv4_v1_onlysetReg)
|| chk_type (kv3_v1, RegClass_kv3_v1_onlyfxReg)
|| chk_type (kv3_v2, RegClass_kv3_v2_onlyfxReg)
|| chk_type (kv4_v1, RegClass_kv4_v1_onlyfxReg))
{
if (env.kvx_regfiles[KVX_REGFILE_DEC_GPR] + value
>= env.kvx_max_dec_registers)
return -1;
if (is_get && !strcmp (env.kvx_registers[env.kvx_dec_registers[env.kvx_regfiles[KVX_REGFILE_DEC_SFR] + value]].name, "$ra"))
{
crt_peb_insn->insn_type = KVX_PROL_EPIL_INSN_GET_RA;
is_a_peb_insn = 1;
}
}
else if (chk_type (kv3_v1, RegClass_kv3_v1_coproReg)
|| chk_type (kv3_v2, RegClass_kv3_v2_coproReg)
|| chk_type (kv4_v1, RegClass_kv4_v1_coproReg)
|| chk_type (kv3_v1, RegClass_kv3_v1_blockReg)
|| chk_type (kv3_v2, RegClass_kv3_v2_blockReg)
|| chk_type (kv4_v1, RegClass_kv4_v1_blockReg)
|| chk_type (kv3_v1, RegClass_kv3_v1_vectorReg)
|| chk_type (kv3_v2, RegClass_kv3_v2_vectorReg)
|| chk_type (kv4_v1, RegClass_kv4_v1_vectorReg)
|| chk_type (kv3_v1, RegClass_kv3_v1_tileReg)
|| chk_type (kv3_v2, RegClass_kv3_v2_tileReg)
|| chk_type (kv4_v1, RegClass_kv4_v1_tileReg)
|| chk_type (kv3_v1, RegClass_kv3_v1_matrixReg)
|| chk_type (kv3_v2, RegClass_kv3_v2_matrixReg)
|| chk_type (kv4_v1, RegClass_kv4_v1_matrixReg)
|| chk_type (kv3_v1, Modifier_kv3_v1_scalarcond)
|| chk_type (kv3_v1, Modifier_kv3_v1_column)
|| chk_type (kv3_v1, Modifier_kv3_v1_comparison)
|| chk_type (kv3_v1, Modifier_kv3_v1_doscale)
|| chk_type (kv3_v1, Modifier_kv3_v1_exunum)
|| chk_type (kv3_v1, Modifier_kv3_v1_floatcomp)
|| chk_type (kv3_v1, Modifier_kv3_v1_qindex)
|| chk_type (kv3_v1, Modifier_kv3_v1_rectify)
|| chk_type (kv3_v1, Modifier_kv3_v1_rounding)
|| chk_type (kv3_v1, Modifier_kv3_v1_roundint)
|| chk_type (kv3_v1, Modifier_kv3_v1_saturate)
|| chk_type (kv3_v1, Modifier_kv3_v1_scalarcond)
|| chk_type (kv3_v1, Modifier_kv3_v1_silent)
|| chk_type (kv3_v1, Modifier_kv3_v1_simplecond)
|| chk_type (kv3_v1, Modifier_kv3_v1_speculate)
|| chk_type (kv3_v1, Modifier_kv3_v1_splat32)
|| chk_type (kv3_v1, Modifier_kv3_v1_variant)
|| chk_type (kv3_v2, Modifier_kv3_v2_accesses)
|| chk_type (kv3_v2, Modifier_kv3_v2_boolcas)
|| chk_type (kv3_v2, Modifier_kv3_v2_cachelev)
|| chk_type (kv3_v2, Modifier_kv3_v2_channel)
|| chk_type (kv3_v2, Modifier_kv3_v2_coherency)
|| chk_type (kv3_v2, Modifier_kv3_v2_comparison)
|| chk_type (kv3_v2, Modifier_kv3_v2_conjugate)
|| chk_type (kv3_v2, Modifier_kv3_v2_doscale)
|| chk_type (kv3_v2, Modifier_kv3_v2_exunum)
|| chk_type (kv3_v2, Modifier_kv3_v2_floatcomp)
|| chk_type (kv3_v2, Modifier_kv3_v2_hindex)
|| chk_type (kv3_v2, Modifier_kv3_v2_lsomask)
|| chk_type (kv3_v2, Modifier_kv3_v2_lsumask)
|| chk_type (kv3_v2, Modifier_kv3_v2_lsupack)
|| chk_type (kv3_v2, Modifier_kv3_v2_qindex)
|| chk_type (kv3_v2, Modifier_kv3_v2_rounding)
|| chk_type (kv3_v2, Modifier_kv3_v2_scalarcond)
|| chk_type (kv3_v2, Modifier_kv3_v2_shuffleV)
|| chk_type (kv3_v2, Modifier_kv3_v2_shuffleX)
|| chk_type (kv3_v2, Modifier_kv3_v2_silent)
|| chk_type (kv3_v2, Modifier_kv3_v2_simplecond)
|| chk_type (kv3_v2, Modifier_kv3_v2_speculate)
|| chk_type (kv3_v2, Modifier_kv3_v2_splat32)
|| chk_type (kv3_v2, Modifier_kv3_v2_transpose)
|| chk_type (kv3_v2, Modifier_kv3_v2_variant)
|| chk_type (kv4_v1, Modifier_kv4_v1_accesses)
|| chk_type (kv4_v1, Modifier_kv4_v1_boolcas)
|| chk_type (kv4_v1, Modifier_kv4_v1_cachelev)
|| chk_type (kv4_v1, Modifier_kv4_v1_channel)
|| chk_type (kv4_v1, Modifier_kv4_v1_coherency)
|| chk_type (kv4_v1, Modifier_kv4_v1_comparison)
|| chk_type (kv4_v1, Modifier_kv4_v1_conjugate)
|| chk_type (kv4_v1, Modifier_kv4_v1_doscale)
|| chk_type (kv4_v1, Modifier_kv4_v1_exunum)
|| chk_type (kv4_v1, Modifier_kv4_v1_floatcomp)
|| chk_type (kv4_v1, Modifier_kv4_v1_hindex)
|| chk_type (kv4_v1, Modifier_kv4_v1_lsomask)
|| chk_type (kv4_v1, Modifier_kv4_v1_lsumask)
|| chk_type (kv4_v1, Modifier_kv4_v1_lsupack)
|| chk_type (kv4_v1, Modifier_kv4_v1_qindex)
|| chk_type (kv4_v1, Modifier_kv4_v1_rounding)
|| chk_type (kv4_v1, Modifier_kv4_v1_scalarcond)
|| chk_type (kv4_v1, Modifier_kv4_v1_shuffleV)
|| chk_type (kv4_v1, Modifier_kv4_v1_shuffleX)
|| chk_type (kv4_v1, Modifier_kv4_v1_silent)
|| chk_type (kv4_v1, Modifier_kv4_v1_simplecond)
|| chk_type (kv4_v1, Modifier_kv4_v1_speculate)
|| chk_type (kv4_v1, Modifier_kv4_v1_splat32)
|| chk_type (kv4_v1, Modifier_kv4_v1_transpose)
|| chk_type (kv4_v1, Modifier_kv4_v1_variant))
{
/* Do nothing. */
}
else if (chk_type (kv3_v1, Immediate_kv3_v1_sysnumber)
|| chk_type (kv3_v2, Immediate_kv3_v2_sysnumber)
|| chk_type (kv4_v1, Immediate_kv4_v1_sysnumber)
|| chk_type (kv3_v2, Immediate_kv3_v2_wrapped8)
|| chk_type (kv4_v1, Immediate_kv4_v1_wrapped8)
|| chk_type (kv3_v1, Immediate_kv3_v1_signed10)
|| chk_type (kv3_v2, Immediate_kv3_v2_signed10)
|| chk_type (kv4_v1, Immediate_kv4_v1_signed10)
|| chk_type (kv3_v1, Immediate_kv3_v1_signed16)
|| chk_type (kv3_v2, Immediate_kv3_v2_signed16)
|| chk_type (kv4_v1, Immediate_kv4_v1_signed16)
|| chk_type (kv3_v1, Immediate_kv3_v1_signed27)
|| chk_type (kv3_v2, Immediate_kv3_v2_signed27)
|| chk_type (kv4_v1, Immediate_kv4_v1_signed27)
|| chk_type (kv3_v1, Immediate_kv3_v1_wrapped32)
|| chk_type (kv3_v2, Immediate_kv3_v2_wrapped32)
|| chk_type (kv4_v1, Immediate_kv4_v1_wrapped32)
|| chk_type (kv3_v1, Immediate_kv3_v1_signed37)
|| chk_type (kv3_v2, Immediate_kv3_v2_signed37)
|| chk_type (kv4_v1, Immediate_kv4_v1_signed37)
|| chk_type (kv3_v1, Immediate_kv3_v1_signed43)
|| chk_type (kv3_v2, Immediate_kv3_v2_signed43)
|| chk_type (kv4_v1, Immediate_kv4_v1_signed43)
|| chk_type (kv3_v1, Immediate_kv3_v1_signed54)
|| chk_type (kv3_v2, Immediate_kv3_v2_signed54)
|| chk_type (kv4_v1, Immediate_kv4_v1_signed54)
|| chk_type (kv3_v1, Immediate_kv3_v1_wrapped64)
|| chk_type (kv3_v2, Immediate_kv3_v2_wrapped64)
|| chk_type (kv4_v1, Immediate_kv4_v1_wrapped64)
|| chk_type (kv3_v1, Immediate_kv3_v1_unsigned6)
|| chk_type (kv3_v2, Immediate_kv3_v2_unsigned6)
|| chk_type (kv4_v1, Immediate_kv4_v1_unsigned6))
crt_peb_insn->immediate = value;
else if (chk_type (kv3_v1, Immediate_kv3_v1_pcrel17)
|| chk_type (kv3_v2, Immediate_kv3_v2_pcrel17)
|| chk_type (kv4_v1, Immediate_kv4_v1_pcrel17)
|| chk_type (kv3_v1, Immediate_kv3_v1_pcrel27)
|| chk_type (kv3_v2, Immediate_kv3_v2_pcrel27)
|| chk_type (kv4_v1, Immediate_kv4_v1_pcrel27))
crt_peb_insn->immediate = value + memaddr;
else
return -1;
}
if (is_a_peb_insn)
peb->nb_insn++;
continue;
}
return nb_syl * 4;
#undef chk_type
}
void
print_kvx_disassembler_options (FILE * stream)
{
fprintf (stream, _("\n\
The following KVX specific disassembler options are supported for use\n\
with the -M switch (multiple options should be separated by commas):\n"));
fprintf (stream, _("\n\
pretty Print 32-bit words in natural order corresponding to \
re-ordered instruction.\n"));
fprintf (stream, _("\n\
compact-assembly Do not emit a new line between bundles of instructions.\
\n"));
fprintf (stream, _("\n\
no-compact-assembly Emit a new line between bundles of instructions.\n"));
fprintf (stream, _("\n"));
}
|