File: mipsInstr.sml

package info (click to toggle)
mlton 20210117%2Bdfsg-3
  • links: PTS, VCS
  • area: main
  • in suites: sid
  • size: 58,464 kB
  • sloc: ansic: 27,682; sh: 4,455; asm: 3,569; lisp: 2,879; makefile: 2,347; perl: 1,169; python: 191; pascal: 68; javascript: 7
file content (675 lines) | stat: -rw-r--r-- 16,634 bytes parent folder | download | duplicates (5)
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
(*
 * WARNING: This file was automatically generated by MDLGen (v3.0)
 * from the machine description file "mips/mips.mdl".
 * DO NOT EDIT this file directly
 *)


signature MIPSINSTR =
sig
   structure C : MIPSCELLS
   structure CB : CELLS_BASIS = CellsBasis
   structure T : MLTREE
   structure Constant: CONSTANT
   structure Region : REGION
      sharing Constant = T.Constant
      sharing Region = T.Region
   datatype load =
     LD
   | LW
   | LH
   | LHU
   | LB
   | LBU
   | LWL
   | LWR
   | LWU
   | LDL
   | LDR
   | ULH
   | ULHU
   | ULW
   | ULD
   datatype store =
     SD
   | SW
   | SH
   | SB
   | SWL
   | SWR
   | SDL
   | SDR
   | USH
   | USW
   | USD
   datatype fload =
     LDC1
   | LWC1
   datatype fstore =
     SDC1
   | SWC1
   datatype fcond =
     FF
   | FUN
   | FEQ
   | FUEQ
   | FOLT
   | FULT
   | FOLE
   | FULE
   | FNGLE
   | FSP
   | FNGL
   | FSEQ
   | FLT
   | FNGE
   | FLE
   | FNGT
   datatype cond =
     EQ
   | NE
   | LEZ
   | GTZ
   | LTZ
   | GEZ
   datatype fbranch =
     BC1T
   | BC1F
   datatype likely =
     LIKELY
   | UNLIKELY
   datatype arith =
     ADD
   | ADDU
   | AND
   | XOR
   | MUL
   | MULO
   | MULOU
   | NOR
   | OR
   | SEQ
   | SGT
   | SGE
   | SGEU
   | SGTU
   | SLT
   | SLE
   | SLEU
   | SLTU
   | SNE
   | SUB
   | SUBU
   | REM
   | REMU
   | SRA
   | SLL
   | SRL
   | ROR
   | ROL
   | MOVN
   | MOVZ
   | DADD
   | DADDU
   | DMUL
   | DMULO
   | DMULOU
   | DSUB
   | DSUBU
   | DREM
   | DREMU
   | DROL
   | DROR
   | DSLL
   | DSLL32
   | DSLLV
   | DSRA
   | DSRA32
   | DSRAV
   | DSRL
   | DSRL32
   | DSRLV
   datatype unary =
     ABS
   | NEG
   | NEGU
   | NOT
   | DABS
   | DNEG
   | DNEGU
   datatype multiply =
     MULT
   | MULTU
   | DMULT
   | DMULTU
   datatype divide =
     DIV
   | DIVU
   | DDIV
   | DDIVU
   datatype trap =
     TEQ
   | TNE
   | TLT
   | TLTU
   | TGE
   | TGEU
   datatype farith =
     ADD_D
   | ADD_S
   | SUB_D
   | SUB_S
   | MUL_D
   | MUL_S
   | DIV_D
   | DIV_S
   datatype funary =
     MOV_D
   | MOV_S
   | ABS_D
   | ABS_S
   | NEG_D
   | NEG_S
   | SQRT_D
   | SQRT_S
   | CVT_SD
   | CVT_SW
   | CVT_DS
   | CVT_DW
   | CVT_WS
   | CVT_WD
   | CVT_SL
   | CVT_DL
   | CVT_LS
   | CVT_LD
   datatype cvti2f =
     MTC1
   | DMTC1
   datatype cvtf2i =
     MFC1
   | DMFC1
   datatype farith3 =
     MADD_D
   | MADD_S
   | NMADD_D
   | NMADD_S
   | MSUB_D
   | MSUB_S
   | NMSUB_D
   | NMSUB_S
   datatype fround =
     TRUNC_WS
   | TRUNC_WD
   | ROUND_WS
   | ROUND_WD
   | CEIL_WD
   | CEIL_WS
   | CEILU_WD
   | CEILU_WS
   | FLOOR_WD
   | FLOOR_WS
   | FLOORU_WD
   | FLOORU_WS
   | ROUNDU_WD
   | ROUNDU_WS
   | TRUNCU_WD
   | TRUNCU_WS
   | TRUNC_LS
   | TRUNC_LD
   | ROUND_LS
   | ROUND_LD
   | CEIL_LS
   | CEIL_LD
   | FLOOR_LS
   | FLOOR_LD
   datatype fmt =
     SINGLE
   | DOUBLE
   datatype operand =
     Imm of int
   | Reg of CellsBasis.cell
   | Lab of T.labexp
   | HiLab of T.labexp
   | LoLab of T.labexp
   datatype ea =
     Direct of CellsBasis.cell
   | FDirect of CellsBasis.cell
   | Displace of {base:CellsBasis.cell, disp:int}
   type addressing_mode = C.cell * operand
   datatype instr =
     NOP
   | LUI of {rt:CellsBasis.cell, imm:operand}
   | LA of {rt:CellsBasis.cell, b:CellsBasis.cell, d:operand}
   | DLA of {rt:CellsBasis.cell, b:CellsBasis.cell, d:operand}
   | LOAD of {l:load, rt:CellsBasis.cell, b:CellsBasis.cell, d:operand, mem:Region.region}
   | STORE of {s:store, rs:CellsBasis.cell, b:CellsBasis.cell, d:operand, mem:Region.region}
   | FLOAD of {l:fload, ft:CellsBasis.cell, b:CellsBasis.cell, d:operand, mem:Region.region}
   | FSTORE of {s:fstore, fs:CellsBasis.cell, b:CellsBasis.cell, d:operand, 
        mem:Region.region}
   | FCMP of {fcond:fcond, fmt:fmt, cc:CellsBasis.cell, fs1:CellsBasis.cell, 
        fs2:CellsBasis.cell}
   | TRAP of {t:trap, rs:CellsBasis.cell, i:operand}
   | J of {lab:Label.label, nop:bool}
   | JR of {rs:CellsBasis.cell, labels:Label.label list, nop:bool}
   | JAL of {lab:Label.label, defs:C.cellset, uses:C.cellset, cutsTo:Label.label list, 
        mem:Region.region, nop:bool}
   | JALR of {rt:CellsBasis.cell, rs:CellsBasis.cell, defs:C.cellset, uses:C.cellset, 
        cutsTo:Label.label list, mem:Region.region, nop:bool}
   | RET of {nop:bool}
   | BRANCH of {likely:likely, cond:cond, rs:CellsBasis.cell, rt:CellsBasis.cell, 
        lab:Label.label, nop:bool}
   | FBRANCH of {likely:likely, fbranch:fbranch, cc:CellsBasis.cell, lab:Label.label, 
        nop:bool}
   | ARITH of {oper:arith, rt:CellsBasis.cell, rs:CellsBasis.cell, i:operand}
   | UNARY of {oper:unary, rt:CellsBasis.cell, rs:CellsBasis.cell}
   | MULTIPLY of {oper:multiply, rt:CellsBasis.cell, rs:CellsBasis.cell}
   | DIVIDE of {oper:divide, rt:CellsBasis.cell, rs:CellsBasis.cell}
   | MFLO of CellsBasis.cell
   | MTLO of CellsBasis.cell
   | MFHI of CellsBasis.cell
   | MTHI of CellsBasis.cell
   | BREAK of int
   | FARITH of {oper:farith, ft:CellsBasis.cell, fs1:CellsBasis.cell, fs2:CellsBasis.cell}
   | FUNARY of {oper:funary, ft:CellsBasis.cell, fs:CellsBasis.cell}
   | FARITH3 of {oper:farith3, ft:CellsBasis.cell, fs1:CellsBasis.cell, fs2:CellsBasis.cell, 
        fs3:CellsBasis.cell}
   | FROUND of {oper:fround, ft:CellsBasis.cell, fs1:CellsBasis.cell, rs2:CellsBasis.cell}
   | CVTI2F of {cvt:cvti2f, rs:CellsBasis.cell, ft:CellsBasis.cell}
   | CVTF2I of {cvt:cvtf2i, fs:CellsBasis.cell, rt:CellsBasis.cell}
   | COPY of {dst:(CellsBasis.cell) list, src:(CellsBasis.cell) list, impl:instruction list option ref, 
        tmp:ea option}
   | FCOPY of {dst:(CellsBasis.cell) list, src:(CellsBasis.cell) list, impl:instruction list option ref, 
        tmp:ea option}
   | ANNOTATION of {i:instruction, a:Annotations.annotation}
   | PHI of {}
   | SOURCE of {}
   | SINK of {}
   and instruction =
     LIVE of {regs: C.cellset, spilled: C.cellset}
   | KILL of {regs: C.cellset, spilled: C.cellset}
   | COPY of {k: CellsBasis.cellkind, 
              sz: int,          (* in bits *)
              dst: CellsBasis.cell list,
              src: CellsBasis.cell list,
              tmp: ea option (* NONE if |dst| = {src| = 1 *)}
   | ANNOTATION of {i:instruction, a:Annotations.annotation}
   | INSTR of instr
   val nop : instruction
   val lui : {rt:CellsBasis.cell, imm:operand} -> instruction
   val la : {rt:CellsBasis.cell, b:CellsBasis.cell, d:operand} -> instruction
   val dla : {rt:CellsBasis.cell, b:CellsBasis.cell, d:operand} -> instruction
   val load : {l:load, rt:CellsBasis.cell, b:CellsBasis.cell, d:operand, mem:Region.region} -> instruction
   val store : {s:store, rs:CellsBasis.cell, b:CellsBasis.cell, d:operand, 
      mem:Region.region} -> instruction
   val fload : {l:fload, ft:CellsBasis.cell, b:CellsBasis.cell, d:operand, 
      mem:Region.region} -> instruction
   val fstore : {s:fstore, fs:CellsBasis.cell, b:CellsBasis.cell, d:operand, 
      mem:Region.region} -> instruction
   val fcmp : {fcond:fcond, fmt:fmt, cc:CellsBasis.cell, fs1:CellsBasis.cell, 
      fs2:CellsBasis.cell} -> instruction
   val trap : {t:trap, rs:CellsBasis.cell, i:operand} -> instruction
   val j : {lab:Label.label, nop:bool} -> instruction
   val jr : {rs:CellsBasis.cell, labels:Label.label list, nop:bool} -> instruction
   val jal : {lab:Label.label, defs:C.cellset, uses:C.cellset, cutsTo:Label.label list, 
      mem:Region.region, nop:bool} -> instruction
   val jalr : {rt:CellsBasis.cell, rs:CellsBasis.cell, defs:C.cellset, uses:C.cellset, 
      cutsTo:Label.label list, mem:Region.region, nop:bool} -> instruction
   val ret : {nop:bool} -> instruction
   val branch : {likely:likely, cond:cond, rs:CellsBasis.cell, rt:CellsBasis.cell, 
      lab:Label.label, nop:bool} -> instruction
   val fbranch : {likely:likely, fbranch:fbranch, cc:CellsBasis.cell, lab:Label.label, 
      nop:bool} -> instruction
   val arith : {oper:arith, rt:CellsBasis.cell, rs:CellsBasis.cell, i:operand} -> instruction
   val unary : {oper:unary, rt:CellsBasis.cell, rs:CellsBasis.cell} -> instruction
   val multiply : {oper:multiply, rt:CellsBasis.cell, rs:CellsBasis.cell} -> instruction
   val divide : {oper:divide, rt:CellsBasis.cell, rs:CellsBasis.cell} -> instruction
   val mflo : CellsBasis.cell -> instruction
   val mtlo : CellsBasis.cell -> instruction
   val mfhi : CellsBasis.cell -> instruction
   val mthi : CellsBasis.cell -> instruction
   val break : int -> instruction
   val farith : {oper:farith, ft:CellsBasis.cell, fs1:CellsBasis.cell, fs2:CellsBasis.cell} -> instruction
   val funary : {oper:funary, ft:CellsBasis.cell, fs:CellsBasis.cell} -> instruction
   val farith3 : {oper:farith3, ft:CellsBasis.cell, fs1:CellsBasis.cell, fs2:CellsBasis.cell, 
      fs3:CellsBasis.cell} -> instruction
   val fround : {oper:fround, ft:CellsBasis.cell, fs1:CellsBasis.cell, rs2:CellsBasis.cell} -> instruction
   val cvti2f : {cvt:cvti2f, rs:CellsBasis.cell, ft:CellsBasis.cell} -> instruction
   val cvtf2i : {cvt:cvtf2i, fs:CellsBasis.cell, rt:CellsBasis.cell} -> instruction
   val copy : {dst:(CellsBasis.cell) list, src:(CellsBasis.cell) list, impl:instruction list option ref, 
      tmp:ea option} -> instruction
   val fcopy : {dst:(CellsBasis.cell) list, src:(CellsBasis.cell) list, impl:instruction list option ref, 
      tmp:ea option} -> instruction
   val annotation : {i:instruction, a:Annotations.annotation} -> instruction
   val phi : {} -> instruction
   val source : {} -> instruction
   val sink : {} -> instruction
end

functor MIPSInstr(T: MLTREE
                 ) : MIPSINSTR =
struct
   structure C = MIPSCells
   structure CB = CellsBasis
   structure T = T
   structure Region = T.Region
   structure Constant = T.Constant
   datatype load =
     LD
   | LW
   | LH
   | LHU
   | LB
   | LBU
   | LWL
   | LWR
   | LWU
   | LDL
   | LDR
   | ULH
   | ULHU
   | ULW
   | ULD
   datatype store =
     SD
   | SW
   | SH
   | SB
   | SWL
   | SWR
   | SDL
   | SDR
   | USH
   | USW
   | USD
   datatype fload =
     LDC1
   | LWC1
   datatype fstore =
     SDC1
   | SWC1
   datatype fcond =
     FF
   | FUN
   | FEQ
   | FUEQ
   | FOLT
   | FULT
   | FOLE
   | FULE
   | FNGLE
   | FSP
   | FNGL
   | FSEQ
   | FLT
   | FNGE
   | FLE
   | FNGT
   datatype cond =
     EQ
   | NE
   | LEZ
   | GTZ
   | LTZ
   | GEZ
   datatype fbranch =
     BC1T
   | BC1F
   datatype likely =
     LIKELY
   | UNLIKELY
   datatype arith =
     ADD
   | ADDU
   | AND
   | XOR
   | MUL
   | MULO
   | MULOU
   | NOR
   | OR
   | SEQ
   | SGT
   | SGE
   | SGEU
   | SGTU
   | SLT
   | SLE
   | SLEU
   | SLTU
   | SNE
   | SUB
   | SUBU
   | REM
   | REMU
   | SRA
   | SLL
   | SRL
   | ROR
   | ROL
   | MOVN
   | MOVZ
   | DADD
   | DADDU
   | DMUL
   | DMULO
   | DMULOU
   | DSUB
   | DSUBU
   | DREM
   | DREMU
   | DROL
   | DROR
   | DSLL
   | DSLL32
   | DSLLV
   | DSRA
   | DSRA32
   | DSRAV
   | DSRL
   | DSRL32
   | DSRLV
   datatype unary =
     ABS
   | NEG
   | NEGU
   | NOT
   | DABS
   | DNEG
   | DNEGU
   datatype multiply =
     MULT
   | MULTU
   | DMULT
   | DMULTU
   datatype divide =
     DIV
   | DIVU
   | DDIV
   | DDIVU
   datatype trap =
     TEQ
   | TNE
   | TLT
   | TLTU
   | TGE
   | TGEU
   datatype farith =
     ADD_D
   | ADD_S
   | SUB_D
   | SUB_S
   | MUL_D
   | MUL_S
   | DIV_D
   | DIV_S
   datatype funary =
     MOV_D
   | MOV_S
   | ABS_D
   | ABS_S
   | NEG_D
   | NEG_S
   | SQRT_D
   | SQRT_S
   | CVT_SD
   | CVT_SW
   | CVT_DS
   | CVT_DW
   | CVT_WS
   | CVT_WD
   | CVT_SL
   | CVT_DL
   | CVT_LS
   | CVT_LD
   datatype cvti2f =
     MTC1
   | DMTC1
   datatype cvtf2i =
     MFC1
   | DMFC1
   datatype farith3 =
     MADD_D
   | MADD_S
   | NMADD_D
   | NMADD_S
   | MSUB_D
   | MSUB_S
   | NMSUB_D
   | NMSUB_S
   datatype fround =
     TRUNC_WS
   | TRUNC_WD
   | ROUND_WS
   | ROUND_WD
   | CEIL_WD
   | CEIL_WS
   | CEILU_WD
   | CEILU_WS
   | FLOOR_WD
   | FLOOR_WS
   | FLOORU_WD
   | FLOORU_WS
   | ROUNDU_WD
   | ROUNDU_WS
   | TRUNCU_WD
   | TRUNCU_WS
   | TRUNC_LS
   | TRUNC_LD
   | ROUND_LS
   | ROUND_LD
   | CEIL_LS
   | CEIL_LD
   | FLOOR_LS
   | FLOOR_LD
   datatype fmt =
     SINGLE
   | DOUBLE
   datatype operand =
     Imm of int
   | Reg of CellsBasis.cell
   | Lab of T.labexp
   | HiLab of T.labexp
   | LoLab of T.labexp
   datatype ea =
     Direct of CellsBasis.cell
   | FDirect of CellsBasis.cell
   | Displace of {base:CellsBasis.cell, disp:int}
   type addressing_mode = C.cell * operand
   datatype instr =
     NOP
   | LUI of {rt:CellsBasis.cell, imm:operand}
   | LA of {rt:CellsBasis.cell, b:CellsBasis.cell, d:operand}
   | DLA of {rt:CellsBasis.cell, b:CellsBasis.cell, d:operand}
   | LOAD of {l:load, rt:CellsBasis.cell, b:CellsBasis.cell, d:operand, mem:Region.region}
   | STORE of {s:store, rs:CellsBasis.cell, b:CellsBasis.cell, d:operand, mem:Region.region}
   | FLOAD of {l:fload, ft:CellsBasis.cell, b:CellsBasis.cell, d:operand, mem:Region.region}
   | FSTORE of {s:fstore, fs:CellsBasis.cell, b:CellsBasis.cell, d:operand, 
        mem:Region.region}
   | FCMP of {fcond:fcond, fmt:fmt, cc:CellsBasis.cell, fs1:CellsBasis.cell, 
        fs2:CellsBasis.cell}
   | TRAP of {t:trap, rs:CellsBasis.cell, i:operand}
   | J of {lab:Label.label, nop:bool}
   | JR of {rs:CellsBasis.cell, labels:Label.label list, nop:bool}
   | JAL of {lab:Label.label, defs:C.cellset, uses:C.cellset, cutsTo:Label.label list, 
        mem:Region.region, nop:bool}
   | JALR of {rt:CellsBasis.cell, rs:CellsBasis.cell, defs:C.cellset, uses:C.cellset, 
        cutsTo:Label.label list, mem:Region.region, nop:bool}
   | RET of {nop:bool}
   | BRANCH of {likely:likely, cond:cond, rs:CellsBasis.cell, rt:CellsBasis.cell, 
        lab:Label.label, nop:bool}
   | FBRANCH of {likely:likely, fbranch:fbranch, cc:CellsBasis.cell, lab:Label.label, 
        nop:bool}
   | ARITH of {oper:arith, rt:CellsBasis.cell, rs:CellsBasis.cell, i:operand}
   | UNARY of {oper:unary, rt:CellsBasis.cell, rs:CellsBasis.cell}
   | MULTIPLY of {oper:multiply, rt:CellsBasis.cell, rs:CellsBasis.cell}
   | DIVIDE of {oper:divide, rt:CellsBasis.cell, rs:CellsBasis.cell}
   | MFLO of CellsBasis.cell
   | MTLO of CellsBasis.cell
   | MFHI of CellsBasis.cell
   | MTHI of CellsBasis.cell
   | BREAK of int
   | FARITH of {oper:farith, ft:CellsBasis.cell, fs1:CellsBasis.cell, fs2:CellsBasis.cell}
   | FUNARY of {oper:funary, ft:CellsBasis.cell, fs:CellsBasis.cell}
   | FARITH3 of {oper:farith3, ft:CellsBasis.cell, fs1:CellsBasis.cell, fs2:CellsBasis.cell, 
        fs3:CellsBasis.cell}
   | FROUND of {oper:fround, ft:CellsBasis.cell, fs1:CellsBasis.cell, rs2:CellsBasis.cell}
   | CVTI2F of {cvt:cvti2f, rs:CellsBasis.cell, ft:CellsBasis.cell}
   | CVTF2I of {cvt:cvtf2i, fs:CellsBasis.cell, rt:CellsBasis.cell}
   | COPY of {dst:(CellsBasis.cell) list, src:(CellsBasis.cell) list, impl:instruction list option ref, 
        tmp:ea option}
   | FCOPY of {dst:(CellsBasis.cell) list, src:(CellsBasis.cell) list, impl:instruction list option ref, 
        tmp:ea option}
   | ANNOTATION of {i:instruction, a:Annotations.annotation}
   | PHI of {}
   | SOURCE of {}
   | SINK of {}
   and instruction =
     LIVE of {regs: C.cellset, spilled: C.cellset}
   | KILL of {regs: C.cellset, spilled: C.cellset}
   | COPY of {k: CellsBasis.cellkind, 
              sz: int,          (* in bits *)
              dst: CellsBasis.cell list,
              src: CellsBasis.cell list,
              tmp: ea option (* NONE if |dst| = {src| = 1 *)}
   | ANNOTATION of {i:instruction, a:Annotations.annotation}
   | INSTR of instr
   val nop = INSTR NOP
   and lui = INSTR o LUI
   and la = INSTR o LA
   and dla = INSTR o DLA
   and load = INSTR o LOAD
   and store = INSTR o STORE
   and fload = INSTR o FLOAD
   and fstore = INSTR o FSTORE
   and fcmp = INSTR o FCMP
   and trap = INSTR o TRAP
   and j = INSTR o J
   and jr = INSTR o JR
   and jal = INSTR o JAL
   and jalr = INSTR o JALR
   and ret = INSTR o RET
   and branch = INSTR o BRANCH
   and fbranch = INSTR o FBRANCH
   and arith = INSTR o ARITH
   and unary = INSTR o UNARY
   and multiply = INSTR o MULTIPLY
   and divide = INSTR o DIVIDE
   and mflo = INSTR o MFLO
   and mtlo = INSTR o MTLO
   and mfhi = INSTR o MFHI
   and mthi = INSTR o MTHI
   and break = INSTR o BREAK
   and farith = INSTR o FARITH
   and funary = INSTR o FUNARY
   and farith3 = INSTR o FARITH3
   and fround = INSTR o FROUND
   and cvti2f = INSTR o CVTI2F
   and cvtf2i = INSTR o CVTF2I
   and copy = INSTR o COPY
   and fcopy = INSTR o FCOPY
   and annotation = INSTR o ANNOTATION
   and phi = INSTR o PHI
   and source = INSTR o SOURCE
   and sink = INSTR o SINK
end