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import gdb-1999-12-06 snapshot
[deliverable/binutils-gdb.git] / sim / mips / mips.igen
CommitLineData
c906108c
SS		 1// -*- C -*-
2//
3// In mips.igen, the semantics for many of the instructions were created
4// using code generated by gencode. Those semantic segments could be
5// greatly simplified.
6//
7// <insn> ::=
8// <insn-word> { "+" <insn-word> }
9// ":" <format-name>
10// ":" <filter-flags>
11// ":" <options>
12// ":" <name>
13// <nl>
14// { <insn-model> }
15// { <insn-mnemonic> }
16// <code-block>
17//
18
19
20// IGEN config - mips16
21// :option:16::insn-bit-size:16
22// :option:16::hi-bit-nr:15
23:option:16::insn-specifying-widths:true
24:option:16::gen-delayed-branch:false
25
26// IGEN config - mips32/64..
27// :option:32::insn-bit-size:32
28// :option:32::hi-bit-nr:31
29:option:32::insn-specifying-widths:true
30:option:32::gen-delayed-branch:false
31
32
33// Generate separate simulators for each target
34// :option:::multi-sim:true
35
36
37// Models known by this simulator
38:model:::mipsI:mips3000:
39:model:::mipsII:mips6000:
40:model:::mipsIII:mips4000:
41:model:::mipsIV:mips8000:
42:model:::mips16:mips16:
43:model:::r3900:mips3900:
44:model:::vr4100:mips4100:
45:model:::vr5000:mips5000:
46
47
48
49// Pseudo instructions known by IGEN
50:internal::::illegal:
51{
52 SignalException (ReservedInstruction, 0);
53}
54
55
56// Pseudo instructions known by interp.c
57// For grep - RSVD_INSTRUCTION, RSVD_INSTRUCTION_MASK
58000000,5.*,5.*,5.*,5.OP,000101:SPECIAL:32::RSVD
59"rsvd <OP>"
60{
61 SignalException (ReservedInstruction, instruction_0);
62}
63
64
65
66// Helper:
67//
68// Simulate a 32 bit delayslot instruction
69//
70
71:function:::address_word:delayslot32:address_word target
72{
73 instruction_word delay_insn;
74 sim_events_slip (SD, 1);
75 DSPC = CIA;
76 CIA = CIA + 4; /* NOTE not mips16 */
77 STATE |= simDELAYSLOT;
78 delay_insn = IMEM32 (CIA); /* NOTE not mips16 */
d4f3574e 79 ENGINE_ISSUE_PREFIX_HOOK();
c906108c
SS		 80 idecode_issue (CPU_, delay_insn, (CIA));
81 STATE &= ~simDELAYSLOT;
82 return target;
83}
84
85:function:::address_word:nullify_next_insn32:
86{
87 sim_events_slip (SD, 1);
88 dotrace (SD, CPU, tracefh, 2, CIA + 4, 4, "load instruction");
89 return CIA + 8;
90}
91
92// Helper:
93//
94// Check that an access to a HI/LO register meets timing requirements
95//
96// The following requirements exist:
97//
98// - A MT {HI,LO} update was not immediatly preceeded by a MF {HI,LO} read
99// - A OP {HI,LO} update was not immediatly preceeded by a MF {HI,LO} read
100// - A MF {HI,LO} read was not corrupted by a preceeding MT{LO,HI} update
101// corruption occures when MT{LO,HI} is preceeded by a OP {HI,LO}.
102//
103
104:function:::int:check_mf_cycles:hilo_history *history, signed64 time, const char *new
105{
106 if (history->mf.timestamp + 3 > time)
107 {
108 sim_engine_abort (SD, CPU, CIA, "HILO: %s: %s at 0x%08lx too close to MF at 0x%08lx\n",
109 itable[MY_INDEX].name,
110 new, (long) CIA,
111 (long) history->mf.cia);
112 return 0;
113 }
114 return 1;
115}
116
117:function:::int:check_mt_hilo:hilo_history *history
118*mipsI,mipsII,mipsIII,mipsIV:
119*vr4100:
120*vr5000:
121{
122 signed64 time = sim_events_time (SD);
123 int ok = check_mf_cycles (SD_, history, time, "MT");
124 history->mt.timestamp = time;
125 history->mt.cia = CIA;
126 return ok;
127}
128
129:function:::int:check_mt_hilo:hilo_history *history
130*r3900:
131{
132 signed64 time = sim_events_time (SD);
133 history->mt.timestamp = time;
134 history->mt.cia = CIA;
135 return 1;
136}
137
138
139:function:::int:check_mf_hilo:hilo_history *history, hilo_history *peer
140*mipsI,mipsII,mipsIII,mipsIV:
141*vr4100:
142*vr5000:
143*r3900:
144{
145 signed64 time = sim_events_time (SD);
146 int ok = 1;
147 if (peer != NULL
148 && peer->mt.timestamp > history->op.timestamp
149 && history->mt.timestamp < history->op.timestamp
150 && ! (history->mf.timestamp > history->op.timestamp
151 && history->mf.timestamp < peer->mt.timestamp)
152 && ! (peer->mf.timestamp > history->op.timestamp
153 && peer->mf.timestamp < peer->mt.timestamp))
154 {
155 /* The peer has been written to since the last OP yet we have
156 not */
157 sim_engine_abort (SD, CPU, CIA, "HILO: %s: MF at 0x%08lx following OP at 0x%08lx corrupted by MT at 0x%08lx\n",
158 itable[MY_INDEX].name,
159 (long) CIA,
160 (long) history->op.cia,
161 (long) peer->mt.cia);
162 ok = 0;
163 }
164 history->mf.timestamp = time;
165 history->mf.cia = CIA;
166 return ok;
167}
168
169
170
171:function:::int:check_mult_hilo:hilo_history *hi, hilo_history *lo
172*mipsI,mipsII,mipsIII,mipsIV:
173*vr4100:
174*vr5000:
175{
176 signed64 time = sim_events_time (SD);
177 int ok = (check_mf_cycles (SD_, hi, time, "OP")
178 && check_mf_cycles (SD_, lo, time, "OP"));
179 hi->op.timestamp = time;
180 lo->op.timestamp = time;
181 hi->op.cia = CIA;
182 lo->op.cia = CIA;
183 return ok;
184}
185
186// The r3900 mult and multu insns _can_ be exectuted immediatly after
187// a mf{hi,lo}
188:function:::int:check_mult_hilo:hilo_history *hi, hilo_history *lo
189*r3900:
190{
191 /* FIXME: could record the fact that a stall occured if we want */
192 signed64 time = sim_events_time (SD);
193 hi->op.timestamp = time;
194 lo->op.timestamp = time;
195 hi->op.cia = CIA;
196 lo->op.cia = CIA;
197 return 1;
198}
199
200
201:function:::int:check_div_hilo:hilo_history *hi, hilo_history *lo
202*mipsI,mipsII,mipsIII,mipsIV:
203*vr4100:
204*vr5000:
205*r3900:
206{
207 signed64 time = sim_events_time (SD);
208 int ok = (check_mf_cycles (SD_, hi, time, "OP")
209 && check_mf_cycles (SD_, lo, time, "OP"));
210 hi->op.timestamp = time;
211 lo->op.timestamp = time;
212 hi->op.cia = CIA;
213 lo->op.cia = CIA;
214 return ok;
215}
216
217
218
219
220
221//
222// Mips Architecture:
223//
224// CPU Instruction Set (mipsI - mipsIV)
225//
226
227
228
229000000,5.RS,5.RT,5.RD,00000,100000:SPECIAL:32::ADD
230"add r<RD>, r<RS>, r<RT>"
231*mipsI,mipsII,mipsIII,mipsIV:
232*vr4100:
233*vr5000:
234*r3900:
235{
236 TRACE_ALU_INPUT2 (GPR[RS], GPR[RT]);
237 {
238 ALU32_BEGIN (GPR[RS]);
239 ALU32_ADD (GPR[RT]);
240 ALU32_END (GPR[RD]);
241 }
242 TRACE_ALU_RESULT (GPR[RD]);
243}
244
245
246
247001000,5.RS,5.RT,16.IMMEDIATE:NORMAL:32::ADDI
248"addi r<RT>, r<RS>, IMMEDIATE"
249*mipsI,mipsII,mipsIII,mipsIV:
250*vr4100:
251*vr5000:
252*r3900:
253{
254 TRACE_ALU_INPUT2 (GPR[RS], EXTEND16 (IMMEDIATE));
255 {
256 ALU32_BEGIN (GPR[RS]);
257 ALU32_ADD (EXTEND16 (IMMEDIATE));
258 ALU32_END (GPR[RT]);
259 }
260 TRACE_ALU_RESULT (GPR[RT]);
261}
262
263
264
265:function:::void:do_addiu:int rs, int rt, unsigned16 immediate
266{
267 TRACE_ALU_INPUT2 (GPR[rs], EXTEND16 (immediate));
268 GPR[rt] = EXTEND32 (GPR[rs] + EXTEND16 (immediate));
269 TRACE_ALU_RESULT (GPR[rt]);
270}
271
272001001,5.RS,5.RT,16.IMMEDIATE:NORMAL:32::ADDIU
273"addiu r<RT>, r<RS>, <IMMEDIATE>"
274*mipsI,mipsII,mipsIII,mipsIV:
275*vr4100:
276*vr5000:
277*r3900:
278{
279 do_addiu (SD_, RS, RT, IMMEDIATE);
280}
281
282
283
284:function:::void:do_addu:int rs, int rt, int rd
285{
286 TRACE_ALU_INPUT2 (GPR[rs], GPR[rt]);
287 GPR[rd] = EXTEND32 (GPR[rs] + GPR[rt]);
288 TRACE_ALU_RESULT (GPR[rd]);
289}
290
291000000,5.RS,5.RT,5.RD,00000,100001:SPECIAL:32::ADDU
292"addu r<RD>, r<RS>, r<RT>"
293*mipsI,mipsII,mipsIII,mipsIV:
294*vr4100:
295*vr5000:
296*r3900:
297{
298 do_addu (SD_, RS, RT, RD);
299}
300
301
302
303:function:::void:do_and:int rs, int rt, int rd
304{
305 TRACE_ALU_INPUT2 (GPR[rs], GPR[rt]);
306 GPR[rd] = GPR[rs] & GPR[rt];
307 TRACE_ALU_RESULT (GPR[rd]);
308}
309
310000000,5.RS,5.RT,5.RD,00000,100100:SPECIAL:32::AND
311"and r<RD>, r<RS>, r<RT>"
312*mipsI,mipsII,mipsIII,mipsIV:
313*vr4100:
314*vr5000:
315*r3900:
316{
317 do_and (SD_, RS, RT, RD);
318}
319
320
321
322001100,5.RS,5.RT,16.IMMEDIATE:NORMAL:32::ANDI
323"and r<RT>, r<RS>, <IMMEDIATE>"
324*mipsI,mipsII,mipsIII,mipsIV:
325*vr4100:
326*vr5000:
327*r3900:
328{
329 TRACE_ALU_INPUT2 (GPR[RS], IMMEDIATE);
330 GPR[RT] = GPR[RS] & IMMEDIATE;
331 TRACE_ALU_RESULT (GPR[RT]);
332}
333
334
335
336000100,5.RS,5.RT,16.OFFSET:NORMAL:32::BEQ
337"beq r<RS>, r<RT>, <OFFSET>"
338*mipsI,mipsII,mipsIII,mipsIV:
339*vr4100:
340*vr5000:
341*r3900:
342{
343 address_word offset = EXTEND16 (OFFSET) << 2;
344 check_branch_bug ();
345 if ((signed_word) GPR[RS] == (signed_word) GPR[RT])
346 {
347 mark_branch_bug (NIA+offset);
348 DELAY_SLOT (NIA + offset);
349 }
350}
351
352
353
354010100,5.RS,5.RT,16.OFFSET:NORMAL:32::BEQL
355"beql r<RS>, r<RT>, <OFFSET>"
356*mipsII:
357*mipsIII:
358*mipsIV:
359*vr4100:
360*vr5000:
361*r3900:
362{
363 address_word offset = EXTEND16 (OFFSET) << 2;
364 check_branch_bug ();
365 if ((signed_word) GPR[RS] == (signed_word) GPR[RT])
366 {
367 mark_branch_bug (NIA+offset);
368 DELAY_SLOT (NIA + offset);
369 }
370 else
371 NULLIFY_NEXT_INSTRUCTION ();
372}
373
374
375
376000001,5.RS,00001,16.OFFSET:REGIMM:32::BGEZ
377"bgez r<RS>, <OFFSET>"
378*mipsI,mipsII,mipsIII,mipsIV:
379*vr4100:
380*vr5000:
381*r3900:
382{
383 address_word offset = EXTEND16 (OFFSET) << 2;
384 check_branch_bug ();
385 if ((signed_word) GPR[RS] >= 0)
386 {
387 mark_branch_bug (NIA+offset);
388 DELAY_SLOT (NIA + offset);
389 }
390}
391
392
393
394000001,5.RS!31,10001,16.OFFSET:REGIMM:32::BGEZAL
395"bgezal r<RS>, <OFFSET>"
396*mipsI,mipsII,mipsIII,mipsIV:
397*vr4100:
398*vr5000:
399*r3900:
400{
401 address_word offset = EXTEND16 (OFFSET) << 2;
402 check_branch_bug ();
403 RA = (CIA + 8);
404 if ((signed_word) GPR[RS] >= 0)
405 {
406 mark_branch_bug (NIA+offset);
407 DELAY_SLOT (NIA + offset);
408 }
409}
410
411
412
413000001,5.RS!31,10011,16.OFFSET:REGIMM:32::BGEZALL
414"bgezall r<RS>, <OFFSET>"
415*mipsII:
416*mipsIII:
417*mipsIV:
418*vr4100:
419*vr5000:
420*r3900:
421{
422 address_word offset = EXTEND16 (OFFSET) << 2;
423 check_branch_bug ();
424 RA = (CIA + 8);
425 /* NOTE: The branch occurs AFTER the next instruction has been
426 executed */
427 if ((signed_word) GPR[RS] >= 0)
428 {
429 mark_branch_bug (NIA+offset);
430 DELAY_SLOT (NIA + offset);
431 }
432 else
433 NULLIFY_NEXT_INSTRUCTION ();
434}
435
436
437
438000001,5.RS,00011,16.OFFSET:REGIMM:32::BGEZL
439"bgezl r<RS>, <OFFSET>"
440*mipsII:
441*mipsIII:
442*mipsIV:
443*vr4100:
444*vr5000:
445*r3900:
446{
447 address_word offset = EXTEND16 (OFFSET) << 2;
448 check_branch_bug ();
449 if ((signed_word) GPR[RS] >= 0)
450 {
451 mark_branch_bug (NIA+offset);
452 DELAY_SLOT (NIA + offset);
453 }
454 else
455 NULLIFY_NEXT_INSTRUCTION ();
456}
457
458
459
460000111,5.RS,00000,16.OFFSET:NORMAL:32::BGTZ
461"bgtz r<RS>, <OFFSET>"
462*mipsI,mipsII,mipsIII,mipsIV:
463*vr4100:
464*vr5000:
465*r3900:
466{
467 address_word offset = EXTEND16 (OFFSET) << 2;
468 check_branch_bug ();
469 if ((signed_word) GPR[RS] > 0)
470 {
471 mark_branch_bug (NIA+offset);
472 DELAY_SLOT (NIA + offset);
473 }
474}
475
476
477
478010111,5.RS,00000,16.OFFSET:NORMAL:32::BGTZL
479"bgtzl r<RS>, <OFFSET>"
480*mipsII:
481*mipsIII:
482*mipsIV:
483*vr4100:
484*vr5000:
485*r3900:
486{
487 address_word offset = EXTEND16 (OFFSET) << 2;
488 check_branch_bug ();
489 /* NOTE: The branch occurs AFTER the next instruction has been
490 executed */
491 if ((signed_word) GPR[RS] > 0)
492 {
493 mark_branch_bug (NIA+offset);
494 DELAY_SLOT (NIA + offset);
495 }
496 else
497 NULLIFY_NEXT_INSTRUCTION ();
498}
499
500
501
502000110,5.RS,00000,16.OFFSET:NORMAL:32::BLEZ
503"blez r<RS>, <OFFSET>"
504*mipsI,mipsII,mipsIII,mipsIV:
505*vr4100:
506*vr5000:
507*r3900:
508{
509 address_word offset = EXTEND16 (OFFSET) << 2;
510 check_branch_bug ();
511 /* NOTE: The branch occurs AFTER the next instruction has been
512 executed */
513 if ((signed_word) GPR[RS] <= 0)
514 {
515 mark_branch_bug (NIA+offset);
516 DELAY_SLOT (NIA + offset);
517 }
518}
519
520
521
522010110,5.RS,00000,16.OFFSET:NORMAL:32::BLEZL
523"bgezl r<RS>, <OFFSET>"
524*mipsII:
525*mipsIII:
526*mipsIV:
527*vr4100:
528*vr5000:
529*r3900:
530{
531 address_word offset = EXTEND16 (OFFSET) << 2;
532 check_branch_bug ();
533 if ((signed_word) GPR[RS] <= 0)
534 {
535 mark_branch_bug (NIA+offset);
536 DELAY_SLOT (NIA + offset);
537 }
538 else
539 NULLIFY_NEXT_INSTRUCTION ();
540}
541
542
543
544000001,5.RS,00000,16.OFFSET:REGIMM:32::BLTZ
545"bltz r<RS>, <OFFSET>"
546*mipsI,mipsII,mipsIII,mipsIV:
547*vr4100:
548*vr5000:
549*r3900:
550{
551 address_word offset = EXTEND16 (OFFSET) << 2;
552 check_branch_bug ();
553 if ((signed_word) GPR[RS] < 0)
554 {
555 mark_branch_bug (NIA+offset);
556 DELAY_SLOT (NIA + offset);
557 }
558}
559
560
561
562000001,5.RS!31,10000,16.OFFSET:REGIMM:32::BLTZAL
563"bltzal r<RS>, <OFFSET>"
564*mipsI,mipsII,mipsIII,mipsIV:
565*vr4100:
566*vr5000:
567*r3900:
568{
569 address_word offset = EXTEND16 (OFFSET) << 2;
570 check_branch_bug ();
571 RA = (CIA + 8);
572 /* NOTE: The branch occurs AFTER the next instruction has been
573 executed */
574 if ((signed_word) GPR[RS] < 0)
575 {
576 mark_branch_bug (NIA+offset);
577 DELAY_SLOT (NIA + offset);
578 }
579}
580
581
582
583000001,5.RS!31,10010,16.OFFSET:REGIMM:32::BLTZALL
584"bltzall r<RS>, <OFFSET>"
585*mipsII:
586*mipsIII:
587*mipsIV:
588*vr4100:
589*vr5000:
590*r3900:
591{
592 address_word offset = EXTEND16 (OFFSET) << 2;
593 check_branch_bug ();
594 RA = (CIA + 8);
595 if ((signed_word) GPR[RS] < 0)
596 {
597 mark_branch_bug (NIA+offset);
598 DELAY_SLOT (NIA + offset);
599 }
600 else
601 NULLIFY_NEXT_INSTRUCTION ();
602}
603
604
605
606000001,5.RS,00010,16.OFFSET:REGIMM:32::BLTZL
607"bltzl r<RS>, <OFFSET>"
608*mipsII:
609*mipsIII:
610*mipsIV:
611*vr4100:
612*vr5000:
613*r3900:
614{
615 address_word offset = EXTEND16 (OFFSET) << 2;
616 check_branch_bug ();
617 /* NOTE: The branch occurs AFTER the next instruction has been
618 executed */
619 if ((signed_word) GPR[RS] < 0)
620 {
621 mark_branch_bug (NIA+offset);
622 DELAY_SLOT (NIA + offset);
623 }
624 else
625 NULLIFY_NEXT_INSTRUCTION ();
626}
627
628
629
630000101,5.RS,5.RT,16.OFFSET:NORMAL:32::BNE
631"bne r<RS>, r<RT>, <OFFSET>"
632*mipsI,mipsII,mipsIII,mipsIV:
633*vr4100:
634*vr5000:
635*r3900:
636{
637 address_word offset = EXTEND16 (OFFSET) << 2;
638 check_branch_bug ();
639 if ((signed_word) GPR[RS] != (signed_word) GPR[RT])
640 {
641 mark_branch_bug (NIA+offset);
642 DELAY_SLOT (NIA + offset);
643 }
644}
645
646
647
648010101,5.RS,5.RT,16.OFFSET:NORMAL:32::BNEL
649"bnel r<RS>, r<RT>, <OFFSET>"
650*mipsII:
651*mipsIII:
652*mipsIV:
653*vr4100:
654*vr5000:
655*r3900:
656{
657 address_word offset = EXTEND16 (OFFSET) << 2;
658 check_branch_bug ();
659 if ((signed_word) GPR[RS] != (signed_word) GPR[RT])
660 {
661 mark_branch_bug (NIA+offset);
662 DELAY_SLOT (NIA + offset);
663 }
664 else
665 NULLIFY_NEXT_INSTRUCTION ();
666}
667
668
669
670000000,20.CODE,001101:SPECIAL:32::BREAK
671"break"
672*mipsI,mipsII,mipsIII,mipsIV:
673*vr4100:
674*vr5000:
675*r3900:
676{
677 /* Check for some break instruction which are reserved for use by the simulator. */
678 unsigned int break_code = instruction_0 & HALT_INSTRUCTION_MASK;
679 if (break_code == (HALT_INSTRUCTION & HALT_INSTRUCTION_MASK) ||
680 break_code == (HALT_INSTRUCTION2 & HALT_INSTRUCTION_MASK))
681 {
682 sim_engine_halt (SD, CPU, NULL, cia,
683 sim_exited, (unsigned int)(A0 & 0xFFFFFFFF));
684 }
685 else if (break_code == (BREAKPOINT_INSTRUCTION & HALT_INSTRUCTION_MASK) ||
686 break_code == (BREAKPOINT_INSTRUCTION2 & HALT_INSTRUCTION_MASK))
687 {
688 if (STATE & simDELAYSLOT)
689 PC = cia - 4; /* reference the branch instruction */
690 else
691 PC = cia;
692 SignalException(BreakPoint, instruction_0);
693 }
694
695 else
696 {
697 /* If we get this far, we're not an instruction reserved by the sim. Raise
698 the exception. */
699 SignalException(BreakPoint, instruction_0);
700 }
701}
702
703
704
c906108c
SS		 705000000,5.RS,5.RT,5.RD,00000,101100:SPECIAL:64::DADD
706"dadd r<RD>, r<RS>, r<RT>"
707*mipsIII:
708*mipsIV:
709*vr4100:
710*vr5000:
711{
712 /* this check's for overflow */
713 TRACE_ALU_INPUT2 (GPR[RS], GPR[RT]);
714 {
715 ALU64_BEGIN (GPR[RS]);
716 ALU64_ADD (GPR[RT]);
717 ALU64_END (GPR[RD]);
718 }
719 TRACE_ALU_RESULT (GPR[RD]);
720}
721
722
723
724011000,5.RS,5.RT,16.IMMEDIATE:NORMAL:64::DADDI
725"daddi r<RT>, r<RS>, <IMMEDIATE>"
726*mipsIII:
727*mipsIV:
728*vr4100:
729*vr5000:
730{
731 TRACE_ALU_INPUT2 (GPR[RS], EXTEND16 (IMMEDIATE));
732 {
733 ALU64_BEGIN (GPR[RS]);
734 ALU64_ADD (EXTEND16 (IMMEDIATE));
735 ALU64_END (GPR[RT]);
736 }
737 TRACE_ALU_RESULT (GPR[RT]);
738}
739
740
741
742:function:::void:do_daddiu:int rs, int rt, unsigned16 immediate
743{
744 TRACE_ALU_INPUT2 (GPR[rs], EXTEND16 (immediate));
745 GPR[rt] = GPR[rs] + EXTEND16 (immediate);
746 TRACE_ALU_RESULT (GPR[rt]);
747}
748
749011001,5.RS,5.RT,16.IMMEDIATE:NORMAL:64::DADDIU
750"daddu r<RT>, r<RS>, <IMMEDIATE>"
751*mipsIII:
752*mipsIV:
753*vr4100:
754*vr5000:
755{
756 do_daddiu (SD_, RS, RT, IMMEDIATE);
757}
758
759
760
761:function:::void:do_daddu:int rs, int rt, int rd
762{
763 TRACE_ALU_INPUT2 (GPR[rs], GPR[rt]);
764 GPR[rd] = GPR[rs] + GPR[rt];
765 TRACE_ALU_RESULT (GPR[rd]);
766}
767
768000000,5.RS,5.RT,5.RD,00000,101101:SPECIAL:64::DADDU
769"daddu r<RD>, r<RS>, r<RT>"
770*mipsIII:
771*mipsIV:
772*vr4100:
773*vr5000:
774{
775 do_daddu (SD_, RS, RT, RD);
776}
777
778
779
780:function:::void:do_ddiv:int rs, int rt
781{
782 check_div_hilo (SD_, HIHISTORY, LOHISTORY);
783 TRACE_ALU_INPUT2 (GPR[rs], GPR[rt]);
784 {
785 signed64 n = GPR[rs];
786 signed64 d = GPR[rt];
787 signed64 hi;
788 signed64 lo;
789 if (d == 0)
790 {
791 lo = SIGNED64 (0x8000000000000000);
792 hi = 0;
793 }
794 else if (d == -1 && n == SIGNED64 (0x8000000000000000))
795 {
796 lo = SIGNED64 (0x8000000000000000);
797 hi = 0;
798 }
799 else
800 {
801 lo = (n / d);
802 hi = (n % d);
803 }
804 HI = hi;
805 LO = lo;
806 }
807 TRACE_ALU_RESULT2 (HI, LO);
808}
809
810000000,5.RS,5.RT,0000000000011110:SPECIAL:64::DDIV
811"ddiv r<RS>, r<RT>"
812*mipsIII:
813*mipsIV:
814*vr4100:
815*vr5000:
816{
817 do_ddiv (SD_, RS, RT);
818}
819
820
821
822:function:::void:do_ddivu:int rs, int rt
823{
824 check_div_hilo (SD_, HIHISTORY, LOHISTORY);
825 TRACE_ALU_INPUT2 (GPR[rs], GPR[rt]);
826 {
827 unsigned64 n = GPR[rs];
828 unsigned64 d = GPR[rt];
829 unsigned64 hi;
830 unsigned64 lo;
831 if (d == 0)
832 {
833 lo = SIGNED64 (0x8000000000000000);
834 hi = 0;
835 }
836 else
837 {
838 lo = (n / d);
839 hi = (n % d);
840 }
841 HI = hi;
842 LO = lo;
843 }
844 TRACE_ALU_RESULT2 (HI, LO);
845}
846
847000000,5.RS,5.RT,0000000000,011111:SPECIAL:64::DDIVU
848"ddivu r<RS>, r<RT>"
849*mipsIII:
850*mipsIV:
851*vr4100:
852*vr5000:
853{
854 do_ddivu (SD_, RS, RT);
855}
856
857
858
859:function:::void:do_div:int rs, int rt
860{
861 check_div_hilo (SD_, HIHISTORY, LOHISTORY);
862 TRACE_ALU_INPUT2 (GPR[rs], GPR[rt]);
863 {
864 signed32 n = GPR[rs];
865 signed32 d = GPR[rt];
866 if (d == 0)
867 {
868 LO = EXTEND32 (0x80000000);
869 HI = EXTEND32 (0);
870 }
871 else if (n == SIGNED32 (0x80000000) && d == -1)
872 {
873 LO = EXTEND32 (0x80000000);
874 HI = EXTEND32 (0);
875 }
876 else
877 {
878 LO = EXTEND32 (n / d);
879 HI = EXTEND32 (n % d);
880 }
881 }
882 TRACE_ALU_RESULT2 (HI, LO);
883}
884
885000000,5.RS,5.RT,0000000000011010:SPECIAL:32::DIV
886"div r<RS>, r<RT>"
887*mipsI,mipsII,mipsIII,mipsIV:
888*vr4100:
889*vr5000:
890*r3900:
891{
892 do_div (SD_, RS, RT);
893}
894
895
896
897:function:::void:do_divu:int rs, int rt
898{
899 check_div_hilo (SD_, HIHISTORY, LOHISTORY);
900 TRACE_ALU_INPUT2 (GPR[rs], GPR[rt]);
901 {
902 unsigned32 n = GPR[rs];
903 unsigned32 d = GPR[rt];
904 if (d == 0)
905 {
906 LO = EXTEND32 (0x80000000);
907 HI = EXTEND32 (0);
908 }
909 else
910 {
911 LO = EXTEND32 (n / d);
912 HI = EXTEND32 (n % d);
913 }
914 }
915 TRACE_ALU_RESULT2 (HI, LO);
916}
917
918000000,5.RS,5.RT,0000000000011011:SPECIAL:32::DIVU
919"divu r<RS>, r<RT>"
920*mipsI,mipsII,mipsIII,mipsIV:
921*vr4100:
922*vr5000:
923*r3900:
924{
925 do_divu (SD_, RS, RT);
926}
927
928
929
930:function:::void:do_dmultx:int rs, int rt, int rd, int signed_p
931{
932 unsigned64 lo;
933 unsigned64 hi;
934 unsigned64 m00;
935 unsigned64 m01;
936 unsigned64 m10;
937 unsigned64 m11;
938 unsigned64 mid;
939 int sign;
940 unsigned64 op1 = GPR[rs];
941 unsigned64 op2 = GPR[rt];
942 check_mult_hilo (SD_, HIHISTORY, LOHISTORY);
943 TRACE_ALU_INPUT2 (GPR[rs], GPR[rt]);
944 /* make signed multiply unsigned */
945 sign = 0;
946 if (signed_p)
947 {
948 if (op1 < 0)
949 {
950 op1 = - op1;
951 ++sign;
952 }
953 if (op2 < 0)
954 {
955 op2 = - op2;
956 ++sign;
957 }
958 }
959 /* multuply out the 4 sub products */
960 m00 = ((unsigned64) VL4_8 (op1) * (unsigned64) VL4_8 (op2));
961 m10 = ((unsigned64) VH4_8 (op1) * (unsigned64) VL4_8 (op2));
962 m01 = ((unsigned64) VL4_8 (op1) * (unsigned64) VH4_8 (op2));
963 m11 = ((unsigned64) VH4_8 (op1) * (unsigned64) VH4_8 (op2));
964 /* add the products */
965 mid = ((unsigned64) VH4_8 (m00)
966 + (unsigned64) VL4_8 (m10)
967 + (unsigned64) VL4_8 (m01));
968 lo = U8_4 (mid, m00);
969 hi = (m11
970 + (unsigned64) VH4_8 (mid)
971 + (unsigned64) VH4_8 (m01)
972 + (unsigned64) VH4_8 (m10));
973 /* fix the sign */
974 if (sign & 1)
975 {
976 lo = -lo;
977 if (lo == 0)
978 hi = -hi;
979 else
980 hi = -hi - 1;
981 }
982 /* save the result HI/LO (and a gpr) */
983 LO = lo;
984 HI = hi;
985 if (rd != 0)
986 GPR[rd] = lo;
987 TRACE_ALU_RESULT2 (HI, LO);
988}
989
990:function:::void:do_dmult:int rs, int rt, int rd
991{
992 do_dmultx (SD_, rs, rt, rd, 1);
993}
994
995000000,5.RS,5.RT,0000000000011100:SPECIAL:64::DMULT
996"dmult r<RS>, r<RT>"
997*mipsIII,mipsIV:
998*vr4100:
999{
1000 do_dmult (SD_, RS, RT, 0);
1001}
1002
1003000000,5.RS,5.RT,5.RD,00000011100:SPECIAL:64::DMULT
1004"dmult r<RS>, r<RT>":RD == 0
1005"dmult r<RD>, r<RS>, r<RT>"
1006*vr5000:
1007{
1008 do_dmult (SD_, RS, RT, RD);
1009}
1010
1011
1012
1013:function:::void:do_dmultu:int rs, int rt, int rd
1014{
1015 do_dmultx (SD_, rs, rt, rd, 0);
1016}
1017
1018000000,5.RS,5.RT,0000000000011101:SPECIAL:64::DMULTU
1019"dmultu r<RS>, r<RT>"
1020*mipsIII,mipsIV:
1021*vr4100:
1022{
1023 do_dmultu (SD_, RS, RT, 0);
1024}
1025
1026000000,5.RS,5.RT,5.RD,00000011101:SPECIAL:64::DMULTU
1027"dmultu r<RD>, r<RS>, r<RT>":RD == 0
1028"dmultu r<RS>, r<RT>"
1029*vr5000:
1030{
1031 do_dmultu (SD_, RS, RT, RD);
1032}
1033
1034:function:::void:do_dsll:int rt, int rd, int shift
1035{
1036 GPR[rd] = GPR[rt] << shift;
1037}
1038
1039:function:::void:do_dsllv:int rs, int rt, int rd
1040{
1041 int s = MASKED64 (GPR[rs], 5, 0);
1042 GPR[rd] = GPR[rt] << s;
1043}
1044
1045
104600000000000,5.RT,5.RD,5.SHIFT,111000:SPECIAL:64::DSLL
1047"dsll r<RD>, r<RT>, <SHIFT>"
1048*mipsIII:
1049*mipsIV:
1050*vr4100:
1051*vr5000:
1052{
1053 do_dsll (SD_, RT, RD, SHIFT);
1054}
1055
1056
105700000000000,5.RT,5.RD,5.SHIFT,111100:SPECIAL:64::DSLL32
1058"dsll32 r<RD>, r<RT>, <SHIFT>"
1059*mipsIII:
1060*mipsIV:
1061*vr4100:
1062*vr5000:
1063{
1064 int s = 32 + SHIFT;
1065 GPR[RD] = GPR[RT] << s;
1066}
1067
1068000000,5.RS,5.RT,5.RD,00000010100:SPECIAL:64::DSLLV
1069"dsllv r<RD>, r<RT>, r<RS>"
1070*mipsIII:
1071*mipsIV:
1072*vr4100:
1073*vr5000:
1074{
1075 do_dsllv (SD_, RS, RT, RD);
1076}
1077
1078:function:::void:do_dsra:int rt, int rd, int shift
1079{
1080 GPR[rd] = ((signed64) GPR[rt]) >> shift;
1081}
1082
1083
108400000000000,5.RT,5.RD,5.SHIFT,111011:SPECIAL:64::DSRA
1085"dsra r<RD>, r<RT>, <SHIFT>"
1086*mipsIII:
1087*mipsIV:
1088*vr4100:
1089*vr5000:
1090{
1091 do_dsra (SD_, RT, RD, SHIFT);
1092}
1093
1094
109500000000000,5.RT,5.RD,5.SHIFT,111111:SPECIAL:64::DSRA32
1096"dsra32 r<RT>, r<RD>, <SHIFT>"
1097*mipsIII:
1098*mipsIV:
1099*vr4100:
1100*vr5000:
1101{
1102 int s = 32 + SHIFT;
1103 GPR[RD] = ((signed64) GPR[RT]) >> s;
1104}
1105
1106
1107:function:::void:do_dsrav:int rs, int rt, int rd
1108{
1109 int s = MASKED64 (GPR[rs], 5, 0);
1110 TRACE_ALU_INPUT2 (GPR[rt], s);
1111 GPR[rd] = ((signed64) GPR[rt]) >> s;
1112 TRACE_ALU_RESULT (GPR[rd]);
1113}
1114
1115000000,5.RS,5.RT,5.RD,00000010111:SPECIAL:64::DSRAV
1116"dsra32 r<RT>, r<RD>, r<RS>"
1117*mipsIII:
1118*mipsIV:
1119*vr4100:
1120*vr5000:
1121{
1122 do_dsrav (SD_, RS, RT, RD);
1123}
1124
1125:function:::void:do_dsrl:int rt, int rd, int shift
1126{
1127 GPR[rd] = (unsigned64) GPR[rt] >> shift;
1128}
1129
1130
113100000000000,5.RT,5.RD,5.SHIFT,111010:SPECIAL:64::DSRL
1132"dsrl r<RD>, r<RT>, <SHIFT>"
1133*mipsIII:
1134*mipsIV:
1135*vr4100:
1136*vr5000:
1137{
1138 do_dsrl (SD_, RT, RD, SHIFT);
1139}
1140
1141
114200000000000,5.RT,5.RD,5.SHIFT,111110:SPECIAL:64::DSRL32
1143"dsrl32 r<RD>, r<RT>, <SHIFT>"
1144*mipsIII:
1145*mipsIV:
1146*vr4100:
1147*vr5000:
1148{
1149 int s = 32 + SHIFT;
1150 GPR[RD] = (unsigned64) GPR[RT] >> s;
1151}
1152
1153
1154:function:::void:do_dsrlv:int rs, int rt, int rd
1155{
1156 int s = MASKED64 (GPR[rs], 5, 0);
1157 GPR[rd] = (unsigned64) GPR[rt] >> s;
1158}
1159
1160
1161
1162000000,5.RS,5.RT,5.RD,00000010110:SPECIAL:64::DSRLV
1163"dsrl32 r<RD>, r<RT>, r<RS>"
1164*mipsIII:
1165*mipsIV:
1166*vr4100:
1167*vr5000:
1168{
1169 do_dsrlv (SD_, RS, RT, RD);
1170}
1171
1172
1173000000,5.RS,5.RT,5.RD,00000101110:SPECIAL:64::DSUB
1174"dsub r<RD>, r<RS>, r<RT>"
1175*mipsIII:
1176*mipsIV:
1177*vr4100:
1178*vr5000:
1179{
1180 TRACE_ALU_INPUT2 (GPR[RS], GPR[RT]);
1181 {
1182 ALU64_BEGIN (GPR[RS]);
1183 ALU64_SUB (GPR[RT]);
1184 ALU64_END (GPR[RD]);
1185 }
1186 TRACE_ALU_RESULT (GPR[RD]);
1187}
1188
1189
1190:function:::void:do_dsubu:int rs, int rt, int rd
1191{
1192 TRACE_ALU_INPUT2 (GPR[rs], GPR[rt]);
1193 GPR[rd] = GPR[rs] - GPR[rt];
1194 TRACE_ALU_RESULT (GPR[rd]);
1195}
1196
1197000000,5.RS,5.RT,5.RD,00000101111:SPECIAL:64::DSUBU
1198"dsubu r<RD>, r<RS>, r<RT>"
1199*mipsIII:
1200*mipsIV:
1201*vr4100:
1202*vr5000:
1203{
1204 do_dsubu (SD_, RS, RT, RD);
1205}
1206
1207
1208000010,26.INSTR_INDEX:NORMAL:32::J
1209"j <INSTR_INDEX>"
1210*mipsI,mipsII,mipsIII,mipsIV:
1211*vr4100:
1212*vr5000:
1213*r3900:
1214{
1215 /* NOTE: The region used is that of the delay slot NIA and NOT the
1216 current instruction */
1217 address_word region = (NIA & MASK (63, 28));
1218 DELAY_SLOT (region | (INSTR_INDEX << 2));
1219}
1220
1221
1222000011,26.INSTR_INDEX:NORMAL:32::JAL
1223"jal <INSTR_INDEX>"
1224*mipsI,mipsII,mipsIII,mipsIV:
1225*vr4100:
1226*vr5000:
1227*r3900:
1228{
1229 /* NOTE: The region used is that of the delay slot and NOT the
1230 current instruction */
1231 address_word region = (NIA & MASK (63, 28));
1232 GPR[31] = CIA + 8;
1233 DELAY_SLOT (region | (INSTR_INDEX << 2));
1234}
1235
1236000000,5.RS,00000,5.RD,00000001001:SPECIAL:32::JALR
1237"jalr r<RS>":RD == 31
1238"jalr r<RD>, r<RS>"
1239*mipsI,mipsII,mipsIII,mipsIV:
1240*vr4100:
1241*vr5000:
1242*r3900:
1243{
1244 address_word temp = GPR[RS];
1245 GPR[RD] = CIA + 8;
1246 DELAY_SLOT (temp);
1247}
1248
1249
1250000000,5.RS,000000000000000001000:SPECIAL:32::JR
1251"jr r<RS>"
1252*mipsI,mipsII,mipsIII,mipsIV:
1253*vr4100:
1254*vr5000:
1255*r3900:
1256{
1257 DELAY_SLOT (GPR[RS]);
1258}
1259
1260
1261:function:::unsigned_word:do_load:unsigned access, address_word base, address_word offset
1262{
1263 address_word mask = (WITH_TARGET_WORD_BITSIZE == 64 ? 0x7 : 0x3);
1264 address_word reverseendian = (ReverseEndian ? (mask ^ access) : 0);
1265 address_word bigendiancpu = (BigEndianCPU ? (mask ^ access) : 0);
1266 unsigned int byte;
1267 address_word paddr;
1268 int uncached;
1269 unsigned64 memval;
1270 address_word vaddr;
1271
1272 vaddr = base + offset;
1273 if ((vaddr & access) != 0)
1274 {
1275 SIM_CORE_SIGNAL (SD, STATE_CPU (SD, 0), cia, read_map, access+1, vaddr, read_transfer, sim_core_unaligned_signal);
1276 }
1277 AddressTranslation (vaddr, isDATA, isLOAD, &paddr, &uncached, isTARGET, isREAL);
1278 paddr = ((paddr & ~mask) | ((paddr & mask) ^ reverseendian));
1279 LoadMemory (&memval, NULL, uncached, access, paddr, vaddr, isDATA, isREAL);
1280 byte = ((vaddr & mask) ^ bigendiancpu);
1281 return (memval >> (8 * byte));
1282}
1283
1284
1285100000,5.BASE,5.RT,16.OFFSET:NORMAL:32::LB
1286"lb r<RT>, <OFFSET>(r<BASE>)"
1287*mipsI,mipsII,mipsIII,mipsIV:
1288*vr4100:
1289*vr5000:
1290*r3900:
1291{
1292 GPR[RT] = EXTEND8 (do_load (SD_, AccessLength_BYTE, GPR[BASE], EXTEND16 (OFFSET)));
1293}
1294
1295
1296100100,5.BASE,5.RT,16.OFFSET:NORMAL:32::LBU
1297"lbu r<RT>, <OFFSET>(r<BASE>)"
1298*mipsI,mipsII,mipsIII,mipsIV:
1299*vr4100:
1300*vr5000:
1301*r3900:
1302{
1303 GPR[RT] = do_load (SD_, AccessLength_BYTE, GPR[BASE], EXTEND16 (OFFSET));
1304}
1305
1306
1307110111,5.BASE,5.RT,16.OFFSET:NORMAL:64::LD
1308"ld r<RT>, <OFFSET>(r<BASE>)"
1309*mipsIII:
1310*mipsIV:
1311*vr4100:
1312*vr5000:
1313{
1314 GPR[RT] = EXTEND64 (do_load (SD_, AccessLength_DOUBLEWORD, GPR[BASE], EXTEND16 (OFFSET)));
1315}
1316
1317
13181101,ZZ!0!1!3,5.BASE,5.RT,16.OFFSET:NORMAL:64::LDCz
1319"ldc<ZZ> r<RT>, <OFFSET>(r<BASE>)"
1320*mipsII:
1321*mipsIII:
1322*mipsIV:
1323*vr4100:
1324*vr5000:
1325*r3900:
1326{
1327 COP_LD (ZZ, RT, do_load (SD_, AccessLength_DOUBLEWORD, GPR[BASE], EXTEND16 (OFFSET)));
1328}
1329
1330
1331
1332
1333011010,5.BASE,5.RT,16.OFFSET:NORMAL:64::LDL
1334"ldl r<RT>, <OFFSET>(r<BASE>)"
1335*mipsIII:
1336*mipsIV:
1337*vr4100:
1338*vr5000:
1339{
1340 GPR[RT] = do_load_left (SD_, AccessLength_DOUBLEWORD, GPR[BASE], EXTEND16 (OFFSET), GPR[RT]);
1341}
1342
1343
1344011011,5.BASE,5.RT,16.OFFSET:NORMAL:64::LDR
1345"ldr r<RT>, <OFFSET>(r<BASE>)"
1346*mipsIII:
1347*mipsIV:
1348*vr4100:
1349*vr5000:
1350{
1351 GPR[RT] = do_load_right (SD_, AccessLength_DOUBLEWORD, GPR[BASE], EXTEND16 (OFFSET), GPR[RT]);
1352}
1353
1354
1355100001,5.BASE,5.RT,16.OFFSET:NORMAL:32::LH
1356"lh r<RT>, <OFFSET>(r<BASE>)"
1357*mipsI,mipsII,mipsIII,mipsIV:
1358*vr4100:
1359*vr5000:
1360*r3900:
1361{
1362 GPR[RT] = EXTEND16 (do_load (SD_, AccessLength_HALFWORD, GPR[BASE], EXTEND16 (OFFSET)));
1363}
1364
1365
1366100101,5.BASE,5.RT,16.OFFSET:NORMAL:32::LHU
1367"lhu r<RT>, <OFFSET>(r<BASE>)"
1368*mipsI,mipsII,mipsIII,mipsIV:
1369*vr4100:
1370*vr5000:
1371*r3900:
1372{
1373 GPR[RT] = do_load (SD_, AccessLength_HALFWORD, GPR[BASE], EXTEND16 (OFFSET));
1374}
1375
1376
1377110000,5.BASE,5.RT,16.OFFSET:NORMAL:32::LL
1378"ll r<RT>, <OFFSET>(r<BASE>)"
1379*mipsII:
1380*mipsIII:
1381*mipsIV:
1382*vr4100:
1383*vr5000:
1384{
1385 unsigned32 instruction = instruction_0;
1386 signed_word offset = SIGNEXTEND((signed_word)((instruction >> 0) & 0x0000FFFF),16);
1387 int destreg = ((instruction >> 16) & 0x0000001F);
1388 signed_word op1 = GPR[((instruction >> 21) & 0x0000001F)];
1389 {
1390 address_word vaddr = ((unsigned64)op1 + offset);
1391 address_word paddr;
1392 int uncached;
1393 if ((vaddr & 3) != 0)
1394 {
1395 SIM_CORE_SIGNAL (SD, CPU, cia, read_map, 4, vaddr, read_transfer, sim_core_unaligned_signal);
1396 }
1397 else
1398 {
1399 if (AddressTranslation(vaddr,isDATA,isLOAD,&paddr,&uncached,isTARGET,isREAL))
1400 {
1401 unsigned64 memval = 0;
1402 unsigned64 memval1 = 0;
1403 unsigned64 mask = 0x7;
1404 unsigned int shift = 2;
1405 unsigned int reverse = (ReverseEndian ? (mask >> shift) : 0);
1406 unsigned int bigend = (BigEndianCPU ? (mask >> shift) : 0);
1407 unsigned int byte;
1408 paddr = ((paddr & ~mask) | ((paddr & mask) ^ (reverse << shift)));
1409 LoadMemory(&memval,&memval1,uncached,AccessLength_WORD,paddr,vaddr,isDATA,isREAL);
1410 byte = ((vaddr & mask) ^ (bigend << shift));
1411 GPR[destreg] = (SIGNEXTEND(((memval >> (8 * byte)) & 0xFFFFFFFF),32));
1412 LLBIT = 1;
1413 }
1414 }
1415 }
1416}
1417
1418
1419110100,5.BASE,5.RT,16.OFFSET:NORMAL:64::LLD
1420"lld r<RT>, <OFFSET>(r<BASE>)"
1421*mipsIII:
1422*mipsIV:
1423*vr4100:
1424*vr5000:
1425{
1426 unsigned32 instruction = instruction_0;
1427 signed_word offset = SIGNEXTEND((signed_word)((instruction >> 0) & 0x0000FFFF),16);
1428 int destreg = ((instruction >> 16) & 0x0000001F);
1429 signed_word op1 = GPR[((instruction >> 21) & 0x0000001F)];
1430 {
1431 address_word vaddr = ((unsigned64)op1 + offset);
1432 address_word paddr;
1433 int uncached;
1434 if ((vaddr & 7) != 0)
1435 {
1436 SIM_CORE_SIGNAL (SD, CPU, cia, read_map, 8, vaddr, read_transfer, sim_core_unaligned_signal);
1437 }
1438 else
1439 {
1440 if (AddressTranslation(vaddr,isDATA,isLOAD,&paddr,&uncached,isTARGET,isREAL))
1441 {
1442 unsigned64 memval = 0;
1443 unsigned64 memval1 = 0;
1444 LoadMemory(&memval,&memval1,uncached,AccessLength_DOUBLEWORD,paddr,vaddr,isDATA,isREAL);
1445 GPR[destreg] = memval;
1446 LLBIT = 1;
1447 }
1448 }
1449 }
1450}
1451
1452
1453001111,00000,5.RT,16.IMMEDIATE:NORMAL:32::LUI
1454"lui r<RT>, <IMMEDIATE>"
1455*mipsI,mipsII,mipsIII,mipsIV:
1456*vr4100:
1457*vr5000:
1458*r3900:
1459{
1460 TRACE_ALU_INPUT1 (IMMEDIATE);
1461 GPR[RT] = EXTEND32 (IMMEDIATE << 16);
1462 TRACE_ALU_RESULT (GPR[RT]);
1463}
1464
1465
1466100011,5.BASE,5.RT,16.OFFSET:NORMAL:32::LW
1467"lw r<RT>, <OFFSET>(r<BASE>)"
1468*mipsI,mipsII,mipsIII,mipsIV:
1469*vr4100:
1470*vr5000:
1471*r3900:
1472{
1473 GPR[RT] = EXTEND32 (do_load (SD_, AccessLength_WORD, GPR[BASE], EXTEND16 (OFFSET)));
1474}
1475
1476
14771100,ZZ!0!1!3,5.BASE,5.RT,16.OFFSET:NORMAL:32::LWCz
1478"lwc<ZZ> r<RT>, <OFFSET>(r<BASE>)"
1479*mipsI,mipsII,mipsIII,mipsIV:
1480*vr4100:
1481*vr5000:
1482*r3900:
1483{
1484 COP_LW (ZZ, RT, do_load (SD_, AccessLength_WORD, GPR[BASE], EXTEND16 (OFFSET)));
1485}
1486
1487
1488:function:::unsigned_word:do_load_left:unsigned access, address_word base, address_word offset, unsigned_word rt
1489{
1490 address_word mask = (WITH_TARGET_WORD_BITSIZE == 64 ? 0x7 : 0x3);
1491 address_word reverseendian = (ReverseEndian ? -1 : 0);
1492 address_word bigendiancpu = (BigEndianCPU ? -1 : 0);
1493 unsigned int byte;
1494 unsigned int word;
1495 address_word paddr;
1496 int uncached;
1497 unsigned64 memval;
1498 address_word vaddr;
1499 int nr_lhs_bits;
1500 int nr_rhs_bits;
1501 unsigned_word lhs_mask;
1502 unsigned_word temp;
1503
1504 vaddr = base + offset;
1505 AddressTranslation (vaddr, isDATA, isLOAD, &paddr, &uncached, isTARGET, isREAL);
1506 paddr = (paddr ^ (reverseendian & mask));
1507 if (BigEndianMem == 0)
1508 paddr = paddr & ~access;
1509
1510 /* compute where within the word/mem we are */
1511 byte = ((vaddr ^ bigendiancpu) & access); /* 0..access */
1512 word = ((vaddr ^ bigendiancpu) & (mask & ~access)) / (access + 1); /* 0..1 */
1513 nr_lhs_bits = 8 * byte + 8;
1514 nr_rhs_bits = 8 * access - 8 * byte;
1515 /* nr_lhs_bits + nr_rhs_bits == 8 * (accesss + 1) */
1516
1517 /* fprintf (stderr, "l[wd]l: 0x%08lx%08lx 0x%08lx%08lx %d:%d %d+%d\n",
1518 (long) ((unsigned64) vaddr >> 32), (long) vaddr,
1519 (long) ((unsigned64) paddr >> 32), (long) paddr,
1520 word, byte, nr_lhs_bits, nr_rhs_bits); */
1521
1522 LoadMemory (&memval, NULL, uncached, byte, paddr, vaddr, isDATA, isREAL);
1523 if (word == 0)
1524 {
1525 /* GPR{31..32-NR_LHS_BITS} = memval{NR_LHS_BITS-1..0} */
1526 temp = (memval << nr_rhs_bits);
1527 }
1528 else
1529 {
1530 /* GPR{31..32-NR_LHS_BITS = memval{32+NR_LHS_BITS..32} */
1531 temp = (memval >> nr_lhs_bits);
1532 }
1533 lhs_mask = LSMASK (nr_lhs_bits + nr_rhs_bits - 1, nr_rhs_bits);
1534 rt = (rt & ~lhs_mask) | (temp & lhs_mask);
1535
1536 /* fprintf (stderr, "l[wd]l: 0x%08lx%08lx -> 0x%08lx%08lx & 0x%08lx%08lx -> 0x%08lx%08lx\n",
1537 (long) ((unsigned64) memval >> 32), (long) memval,
1538 (long) ((unsigned64) temp >> 32), (long) temp,
1539 (long) ((unsigned64) lhs_mask >> 32), (long) lhs_mask,
1540 (long) (rt >> 32), (long) rt); */
1541 return rt;
1542}
1543
1544
1545100010,5.BASE,5.RT,16.OFFSET:NORMAL:32::LWL
1546"lwl r<RT>, <OFFSET>(r<BASE>)"
1547*mipsI,mipsII,mipsIII,mipsIV:
1548*vr4100:
1549*vr5000:
1550*r3900:
1551{
7a292a7a 1552 GPR[RT] = EXTEND32 (do_load_left (SD_, AccessLength_WORD, GPR[BASE], EXTEND16 (OFFSET), GPR[RT]));
c906108c
SS		 1553}
1554
1555
1556:function:::unsigned_word:do_load_right:unsigned access, address_word base, address_word offset, unsigned_word rt
1557{
1558 address_word mask = (WITH_TARGET_WORD_BITSIZE == 64 ? 0x7 : 0x3);
1559 address_word reverseendian = (ReverseEndian ? -1 : 0);
1560 address_word bigendiancpu = (BigEndianCPU ? -1 : 0);
1561 unsigned int byte;
1562 address_word paddr;
1563 int uncached;
1564 unsigned64 memval;
1565 address_word vaddr;
1566
1567 vaddr = base + offset;
1568 AddressTranslation (vaddr, isDATA, isLOAD, &paddr, &uncached, isTARGET, isREAL);
1569 /* NOTE: SPEC is wrong, has `BigEndianMem == 0' not `BigEndianMem != 0' */
1570 paddr = (paddr ^ (reverseendian & mask));
1571 if (BigEndianMem != 0)
1572 paddr = paddr & ~access;
1573 byte = ((vaddr & mask) ^ (bigendiancpu & mask));
1574 /* NOTE: SPEC is wrong, had `byte' not `access - byte'. See SW. */
1575 LoadMemory (&memval, NULL, uncached, access - (access & byte), paddr, vaddr, isDATA, isREAL);
1576 /* printf ("lr: 0x%08lx %d@0x%08lx 0x%08lx\n",
1577 (long) paddr, byte, (long) paddr, (long) memval); */
1578 {
1579 unsigned_word screen = LSMASK (8 * (access - (byte & access) + 1) - 1, 0);
1580 rt &= ~screen;
1581 rt |= (memval >> (8 * byte)) & screen;
1582 }
1583 return rt;
1584}
1585
1586
1587100110,5.BASE,5.RT,16.OFFSET:NORMAL:32::LWR
1588"lwr r<RT>, <OFFSET>(r<BASE>)"
1589*mipsI,mipsII,mipsIII,mipsIV:
1590*vr4100:
1591*vr5000:
1592*r3900:
1593{
1594 GPR[RT] = EXTEND32 (do_load_right (SD_, AccessLength_WORD, GPR[BASE], EXTEND16 (OFFSET), GPR[RT]));
1595}
1596
1597
1598100111,5.BASE,5.RT,16.OFFSET:NORMAL:32::LWU
1599"lwu r<RT>, <OFFSET>(r<BASE>)"
1600*mipsIII:
1601*mipsIV:
1602*vr4100:
1603*vr5000:
1604{
1605 GPR[RT] = do_load (SD_, AccessLength_WORD, GPR[BASE], EXTEND16 (OFFSET));
1606}
1607
1608
1609:function:::void:do_mfhi:int rd
1610{
1611 check_mf_hilo (SD_, HIHISTORY, LOHISTORY);
1612 TRACE_ALU_INPUT1 (HI);
1613 GPR[rd] = HI;
1614 TRACE_ALU_RESULT (GPR[rd]);
1615}
1616
1617000000,0000000000,5.RD,00000,010000:SPECIAL:32::MFHI
1618"mfhi r<RD>"
1619*mipsI,mipsII,mipsIII,mipsIV:
1620*vr4100:
1621*vr5000:
1622*r3900:
1623{
1624 do_mfhi (SD_, RD);
1625}
1626
1627
1628
1629:function:::void:do_mflo:int rd
1630{
1631 check_mf_hilo (SD_, LOHISTORY, HIHISTORY);
1632 TRACE_ALU_INPUT1 (LO);
1633 GPR[rd] = LO;
1634 TRACE_ALU_RESULT (GPR[rd]);
1635}
1636
1637000000,0000000000,5.RD,00000,010010:SPECIAL:32::MFLO
1638"mflo r<RD>"
1639*mipsI,mipsII,mipsIII,mipsIV:
1640*vr4100:
1641*vr5000:
1642*r3900:
1643{
1644 do_mflo (SD_, RD);
1645}
1646
1647
1648
1649000000,5.RS,5.RT,5.RD,00000001011:SPECIAL:32::MOVN
1650"movn r<RD>, r<RS>, r<RT>"
1651*mipsIV:
1652*vr5000:
1653{
1654 if (GPR[RT] != 0)
1655 GPR[RD] = GPR[RS];
1656}
1657
1658
1659
1660000000,5.RS,5.RT,5.RD,00000001010:SPECIAL:32::MOVZ
1661"movz r<RD>, r<RS>, r<RT>"
1662*mipsIV:
1663*vr5000:
1664{
1665 if (GPR[RT] == 0)
1666 GPR[RD] = GPR[RS];
1667}
1668
1669
1670
1671000000,5.RS,000000000000000,010001:SPECIAL:32::MTHI
1672"mthi r<RS>"
1673*mipsI,mipsII,mipsIII,mipsIV:
1674*vr4100:
1675*vr5000:
1676*r3900:
1677{
1678 check_mt_hilo (SD_, HIHISTORY);
1679 HI = GPR[RS];
1680}
1681
1682
1683
1684000000,5.RS,000000000000000010011:SPECIAL:32::MTLO
1685"mtlo r<RS>"
1686*mipsI,mipsII,mipsIII,mipsIV:
1687*vr4100:
1688*vr5000:
1689*r3900:
1690{
1691 check_mt_hilo (SD_, LOHISTORY);
1692 LO = GPR[RS];
1693}
1694
1695
1696
1697:function:::void:do_mult:int rs, int rt, int rd
1698{
1699 signed64 prod;
1700 check_mult_hilo (SD_, HIHISTORY, LOHISTORY);
1701 TRACE_ALU_INPUT2 (GPR[rs], GPR[rt]);
1702 prod = (((signed64)(signed32) GPR[rs])
1703 * ((signed64)(signed32) GPR[rt]));
1704 LO = EXTEND32 (VL4_8 (prod));
1705 HI = EXTEND32 (VH4_8 (prod));
1706 if (rd != 0)
1707 GPR[rd] = LO;
1708 TRACE_ALU_RESULT2 (HI, LO);
1709}
1710
1711000000,5.RS,5.RT,00000,00000011000:SPECIAL:32::MULT
1712"mult r<RS>, r<RT>"
1713*mipsI,mipsII,mipsIII,mipsIV:
1714*vr4100:
1715{
1716 do_mult (SD_, RS, RT, 0);
1717}
1718
1719
1720000000,5.RS,5.RT,5.RD,00000011000:SPECIAL:32::MULT
9846de1b 1721"mult r<RS>, r<RT>":RD == 0
c906108c
SS		 1722"mult r<RD>, r<RS>, r<RT>"
1723*vr5000:
1724*r3900:
1725{
1726 do_mult (SD_, RS, RT, RD);
1727}
1728
1729
1730:function:::void:do_multu:int rs, int rt, int rd
1731{
1732 unsigned64 prod;
1733 check_mult_hilo (SD_, HIHISTORY, LOHISTORY);
1734 TRACE_ALU_INPUT2 (GPR[rs], GPR[rt]);
1735 prod = (((unsigned64)(unsigned32) GPR[rs])
1736 * ((unsigned64)(unsigned32) GPR[rt]));
1737 LO = EXTEND32 (VL4_8 (prod));
1738 HI = EXTEND32 (VH4_8 (prod));
1739 if (rd != 0)
1740 GPR[rd] = LO;
1741 TRACE_ALU_RESULT2 (HI, LO);
1742}
1743
1744000000,5.RS,5.RT,00000,00000011001:SPECIAL:32::MULTU
1745"multu r<RS>, r<RT>"
1746*mipsI,mipsII,mipsIII,mipsIV:
1747*vr4100:
1748{
cff3e48b 1749 do_multu (SD_, RS, RT, 0);
c906108c
SS		 1750}
1751
1752000000,5.RS,5.RT,5.RD,00000011001:SPECIAL:32::MULTU
9846de1b 1753"multu r<RS>, r<RT>":RD == 0
c906108c
SS		 1754"multu r<RD>, r<RS>, r<RT>"
1755*vr5000:
1756*r3900:
1757{
cff3e48b 1758 do_multu (SD_, RS, RT, RD);
c906108c
SS		 1759}
1760
1761
1762:function:::void:do_nor:int rs, int rt, int rd
1763{
1764 TRACE_ALU_INPUT2 (GPR[rs], GPR[rt]);
1765 GPR[rd] = ~ (GPR[rs] | GPR[rt]);
1766 TRACE_ALU_RESULT (GPR[rd]);
1767}
1768
1769000000,5.RS,5.RT,5.RD,00000,100111:SPECIAL:32::NOR
1770"nor r<RD>, r<RS>, r<RT>"
1771*mipsI,mipsII,mipsIII,mipsIV:
1772*vr4100:
1773*vr5000:
1774*r3900:
1775{
1776 do_nor (SD_, RS, RT, RD);
1777}
1778
1779
1780:function:::void:do_or:int rs, int rt, int rd
1781{
1782 TRACE_ALU_INPUT2 (GPR[rs], GPR[rt]);
1783 GPR[rd] = (GPR[rs] | GPR[rt]);
1784 TRACE_ALU_RESULT (GPR[rd]);
1785}
1786
1787000000,5.RS,5.RT,5.RD,00000,100101:SPECIAL:32::OR
1788"or r<RD>, r<RS>, r<RT>"
1789*mipsI,mipsII,mipsIII,mipsIV:
1790*vr4100:
1791*vr5000:
1792*r3900:
1793{
1794 do_or (SD_, RS, RT, RD);
1795}
1796
1797
1798
1799:function:::void:do_ori:int rs, int rt, unsigned immediate
1800{
1801 TRACE_ALU_INPUT2 (GPR[rs], immediate);
1802 GPR[rt] = (GPR[rs] | immediate);
1803 TRACE_ALU_RESULT (GPR[rt]);
1804}
1805
1806001101,5.RS,5.RT,16.IMMEDIATE:NORMAL:32::ORI
1807"ori r<RT>, r<RS>, <IMMEDIATE>"
1808*mipsI,mipsII,mipsIII,mipsIV:
1809*vr4100:
1810*vr5000:
1811*r3900:
1812{
1813 do_ori (SD_, RS, RT, IMMEDIATE);
1814}
1815
1816
1817110011,5.RS,nnnnn,16.OFFSET:NORMAL:32::PREF
1818*mipsIV:
1819*vr5000:
1820{
1821 unsigned32 instruction = instruction_0;
1822 signed_word offset = SIGNEXTEND((signed_word)((instruction >> 0) & 0x0000FFFF),16);
1823 int hint = ((instruction >> 16) & 0x0000001F);
1824 signed_word op1 = GPR[((instruction >> 21) & 0x0000001F)];
1825 {
1826 address_word vaddr = ((unsigned64)op1 + offset);
1827 address_word paddr;
1828 int uncached;
1829 {
1830 if (AddressTranslation(vaddr,isDATA,isLOAD,&paddr,&uncached,isTARGET,isREAL))
1831 Prefetch(uncached,paddr,vaddr,isDATA,hint);
1832 }
1833 }
1834}
1835
1836:function:::void:do_store:unsigned access, address_word base, address_word offset, unsigned_word word
1837{
1838 address_word mask = (WITH_TARGET_WORD_BITSIZE == 64 ? 0x7 : 0x3);
1839 address_word reverseendian = (ReverseEndian ? (mask ^ access) : 0);
1840 address_word bigendiancpu = (BigEndianCPU ? (mask ^ access) : 0);
1841 unsigned int byte;
1842 address_word paddr;
1843 int uncached;
1844 unsigned64 memval;
1845 address_word vaddr;
1846
1847 vaddr = base + offset;
1848 if ((vaddr & access) != 0)
1849 {
1850 SIM_CORE_SIGNAL (SD, STATE_CPU(SD, 0), cia, read_map, access+1, vaddr, write_transfer, sim_core_unaligned_signal);
1851 }
1852 AddressTranslation (vaddr, isDATA, isSTORE, &paddr, &uncached, isTARGET, isREAL);
1853 paddr = ((paddr & ~mask) | ((paddr & mask) ^ reverseendian));
1854 byte = ((vaddr & mask) ^ bigendiancpu);
1855 memval = (word << (8 * byte));
1856 StoreMemory (uncached, access, memval, 0, paddr, vaddr, isREAL);
1857}
1858
1859
1860101000,5.BASE,5.RT,16.OFFSET:NORMAL:32::SB
1861"sb r<RT>, <OFFSET>(r<BASE>)"
1862*mipsI,mipsII,mipsIII,mipsIV:
1863*vr4100:
1864*vr5000:
1865*r3900:
1866{
1867 do_store (SD_, AccessLength_BYTE, GPR[BASE], EXTEND16 (OFFSET), GPR[RT]);
1868}
1869
1870
1871111000,5.BASE,5.RT,16.OFFSET:NORMAL:32::SC
1872"sc r<RT>, <OFFSET>(r<BASE>)"
1873*mipsII:
1874*mipsIII:
1875*mipsIV:
1876*vr4100:
1877*vr5000:
1878{
1879 unsigned32 instruction = instruction_0;
1880 signed_word offset = SIGNEXTEND((signed_word)((instruction >> 0) & 0x0000FFFF),16);
1881 signed_word op2 = GPR[((instruction >> 16) & 0x0000001F)];
1882 signed_word op1 = GPR[((instruction >> 21) & 0x0000001F)];
1883 {
1884 address_word vaddr = ((unsigned64)op1 + offset);
1885 address_word paddr;
1886 int uncached;
1887 if ((vaddr & 3) != 0)
1888 {
1889 SIM_CORE_SIGNAL (SD, CPU, cia, read_map, 4, vaddr, write_transfer, sim_core_unaligned_signal);
1890 }
1891 else
1892 {
1893 if (AddressTranslation(vaddr,isDATA,isSTORE,&paddr,&uncached,isTARGET,isREAL))
1894 {
1895 unsigned64 memval = 0;
1896 unsigned64 memval1 = 0;
1897 unsigned64 mask = 0x7;
1898 unsigned int byte;
1899 paddr = ((paddr & ~mask) | ((paddr & mask) ^ (ReverseEndian << 2)));
1900 byte = ((vaddr & mask) ^ (BigEndianCPU << 2));
1901 memval = ((unsigned64) op2 << (8 * byte));
1902 if (LLBIT)
1903 {
1904 StoreMemory(uncached,AccessLength_WORD,memval,memval1,paddr,vaddr,isREAL);
1905 }
1906 GPR[(instruction >> 16) & 0x0000001F] = LLBIT;
1907 }
1908 }
1909 }
1910}
1911
1912
1913111100,5.BASE,5.RT,16.OFFSET:NORMAL:64::SCD
1914"scd r<RT>, <OFFSET>(r<BASE>)"
1915*mipsIII:
1916*mipsIV:
1917*vr4100:
1918*vr5000:
1919{
1920 unsigned32 instruction = instruction_0;
1921 signed_word offset = SIGNEXTEND((signed_word)((instruction >> 0) & 0x0000FFFF),16);
1922 signed_word op2 = GPR[((instruction >> 16) & 0x0000001F)];
1923 signed_word op1 = GPR[((instruction >> 21) & 0x0000001F)];
1924 {
1925 address_word vaddr = ((unsigned64)op1 + offset);
1926 address_word paddr;
1927 int uncached;
1928 if ((vaddr & 7) != 0)
1929 {
1930 SIM_CORE_SIGNAL (SD, CPU, cia, read_map, 8, vaddr, write_transfer, sim_core_unaligned_signal);
1931 }
1932 else
1933 {
1934 if (AddressTranslation(vaddr,isDATA,isSTORE,&paddr,&uncached,isTARGET,isREAL))
1935 {
1936 unsigned64 memval = 0;
1937 unsigned64 memval1 = 0;
1938 memval = op2;
1939 if (LLBIT)
1940 {
1941 StoreMemory(uncached,AccessLength_DOUBLEWORD,memval,memval1,paddr,vaddr,isREAL);
1942 }
1943 GPR[(instruction >> 16) & 0x0000001F] = LLBIT;
1944 }
1945 }
1946 }
1947}
1948
1949
1950111111,5.BASE,5.RT,16.OFFSET:NORMAL:64::SD
1951"sd r<RT>, <OFFSET>(r<BASE>)"
1952*mipsIII:
1953*mipsIV:
1954*vr4100:
1955*vr5000:
1956{
1957 do_store (SD_, AccessLength_DOUBLEWORD, GPR[BASE], EXTEND16 (OFFSET), GPR[RT]);
1958}
1959
1960
19611111,ZZ!0!1!3,5.BASE,5.RT,16.OFFSET:NORMAL:64::SDCz
1962"sdc<ZZ> r<RT>, <OFFSET>(r<BASE>)"
1963*mipsII:
1964*mipsIII:
1965*mipsIV:
1966*vr4100:
1967*vr5000:
1968{
1969 do_store (SD_, AccessLength_DOUBLEWORD, GPR[BASE], EXTEND16 (OFFSET), COP_SD (ZZ, RT));
1970}
1971
1972
1973101100,5.BASE,5.RT,16.OFFSET:NORMAL:64::SDL
1974"sdl r<RT>, <OFFSET>(r<BASE>)"
1975*mipsIII:
1976*mipsIV:
1977*vr4100:
1978*vr5000:
1979{
1980 do_store_left (SD_, AccessLength_DOUBLEWORD, GPR[BASE], EXTEND16 (OFFSET), GPR[RT]);
1981}
1982
1983
1984101101,5.BASE,5.RT,16.OFFSET:NORMAL:64::SDR
1985"sdr r<RT>, <OFFSET>(r<BASE>)"
1986*mipsIII:
1987*mipsIV:
1988*vr4100:
1989*vr5000:
1990{
1991 do_store_right (SD_, AccessLength_DOUBLEWORD, GPR[BASE], EXTEND16 (OFFSET), GPR[RT]);
1992}
1993
1994
1995101001,5.BASE,5.RT,16.OFFSET:NORMAL:32::SH
1996"sh r<RT>, <OFFSET>(r<BASE>)"
1997*mipsI,mipsII,mipsIII,mipsIV:
1998*vr4100:
1999*vr5000:
2000*r3900:
2001{
2002 do_store (SD_, AccessLength_HALFWORD, GPR[BASE], EXTEND16 (OFFSET), GPR[RT]);
2003}
2004
2005
2006:function:::void:do_sll:int rt, int rd, int shift
2007{
2008 unsigned32 temp = (GPR[rt] << shift);
2009 TRACE_ALU_INPUT2 (GPR[rt], shift);
2010 GPR[rd] = EXTEND32 (temp);
2011 TRACE_ALU_RESULT (GPR[rd]);
2012}
2013
201400000000000,5.RT,5.RD,5.SHIFT,000000:SPECIAL:32::SLL
2015"sll r<RD>, r<RT>, <SHIFT>"
2016*mipsI,mipsII,mipsIII,mipsIV:
2017*vr4100:
2018*vr5000:
2019*r3900:
2020{
2021 do_sll (SD_, RT, RD, SHIFT);
2022}
2023
2024
2025:function:::void:do_sllv:int rs, int rt, int rd
2026{
2027 int s = MASKED (GPR[rs], 4, 0);
2028 unsigned32 temp = (GPR[rt] << s);
2029 TRACE_ALU_INPUT2 (GPR[rt], s);
2030 GPR[rd] = EXTEND32 (temp);
2031 TRACE_ALU_RESULT (GPR[rd]);
2032}
2033
2034000000,5.RS,5.RT,5.RD,00000000100:SPECIAL:32::SLLV
2035"sllv r<RD>, r<RT>, r<RS>"
2036*mipsI,mipsII,mipsIII,mipsIV:
2037*vr4100:
2038*vr5000:
2039*r3900:
2040{
2041 do_sllv (SD_, RS, RT, RD);
2042}
2043
2044
2045:function:::void:do_slt:int rs, int rt, int rd
2046{
2047 TRACE_ALU_INPUT2 (GPR[rs], GPR[rt]);
2048 GPR[rd] = ((signed_word) GPR[rs] < (signed_word) GPR[rt]);
2049 TRACE_ALU_RESULT (GPR[rd]);
2050}
2051
2052000000,5.RS,5.RT,5.RD,00000101010:SPECIAL:32::SLT
2053"slt r<RD>, r<RS>, r<RT>"
2054*mipsI,mipsII,mipsIII,mipsIV:
2055*vr4100:
2056*vr5000:
2057*r3900:
2058{
2059 do_slt (SD_, RS, RT, RD);
2060}
2061
2062
2063:function:::void:do_slti:int rs, int rt, unsigned16 immediate
2064{
2065 TRACE_ALU_INPUT2 (GPR[rs], EXTEND16 (immediate));
2066 GPR[rt] = ((signed_word) GPR[rs] < (signed_word) EXTEND16 (immediate));
2067 TRACE_ALU_RESULT (GPR[rt]);
2068}
2069
2070001010,5.RS,5.RT,16.IMMEDIATE:NORMAL:32::SLTI
2071"slti r<RT>, r<RS>, <IMMEDIATE>"
2072*mipsI,mipsII,mipsIII,mipsIV:
2073*vr4100:
2074*vr5000:
2075*r3900:
2076{
2077 do_slti (SD_, RS, RT, IMMEDIATE);
2078}
2079
2080
2081:function:::void:do_sltiu:int rs, int rt, unsigned16 immediate
2082{
2083 TRACE_ALU_INPUT2 (GPR[rs], EXTEND16 (immediate));
2084 GPR[rt] = ((unsigned_word) GPR[rs] < (unsigned_word) EXTEND16 (immediate));
2085 TRACE_ALU_RESULT (GPR[rt]);
2086}
2087
2088001011,5.RS,5.RT,16.IMMEDIATE:NORMAL:32::SLTIU
2089"sltiu r<RT>, r<RS>, <IMMEDIATE>"
2090*mipsI,mipsII,mipsIII,mipsIV:
2091*vr4100:
2092*vr5000:
2093*r3900:
2094{
2095 do_sltiu (SD_, RS, RT, IMMEDIATE);
2096}
2097
2098
2099
2100:function:::void:do_sltu:int rs, int rt, int rd
2101{
2102 TRACE_ALU_INPUT2 (GPR[rs], GPR[rt]);
2103 GPR[rd] = ((unsigned_word) GPR[rs] < (unsigned_word) GPR[rt]);
2104 TRACE_ALU_RESULT (GPR[rd]);
2105}
2106
2107000000,5.RS,5.RT,5.RD,00000101011:SPECIAL:32::SLTU
2108"sltu r<RD>, r<RS>, r<RT>"
2109*mipsI,mipsII,mipsIII,mipsIV:
2110*vr4100:
2111*vr5000:
2112*r3900:
2113{
2114 do_sltu (SD_, RS, RT, RD);
2115}
2116
2117
2118:function:::void:do_sra:int rt, int rd, int shift
2119{
2120 signed32 temp = (signed32) GPR[rt] >> shift;
2121 TRACE_ALU_INPUT2 (GPR[rt], shift);
2122 GPR[rd] = EXTEND32 (temp);
2123 TRACE_ALU_RESULT (GPR[rd]);
2124}
2125
2126000000,00000,5.RT,5.RD,5.SHIFT,000011:SPECIAL:32::SRA
2127"sra r<RD>, r<RT>, <SHIFT>"
2128*mipsI,mipsII,mipsIII,mipsIV:
2129*vr4100:
2130*vr5000:
2131*r3900:
2132{
2133 do_sra (SD_, RT, RD, SHIFT);
2134}
2135
2136
2137
2138:function:::void:do_srav:int rs, int rt, int rd
2139{
2140 int s = MASKED (GPR[rs], 4, 0);
2141 signed32 temp = (signed32) GPR[rt] >> s;
2142 TRACE_ALU_INPUT2 (GPR[rt], s);
2143 GPR[rd] = EXTEND32 (temp);
2144 TRACE_ALU_RESULT (GPR[rd]);
2145}
2146
2147000000,5.RS,5.RT,5.RD,00000000111:SPECIAL:32::SRAV
2148"srav r<RD>, r<RT>, r<RS>"
2149*mipsI,mipsII,mipsIII,mipsIV:
2150*vr4100:
2151*vr5000:
2152*r3900:
2153{
2154 do_srav (SD_, RS, RT, RD);
2155}
2156
2157
2158
2159:function:::void:do_srl:int rt, int rd, int shift
2160{
2161 unsigned32 temp = (unsigned32) GPR[rt] >> shift;
2162 TRACE_ALU_INPUT2 (GPR[rt], shift);
2163 GPR[rd] = EXTEND32 (temp);
2164 TRACE_ALU_RESULT (GPR[rd]);
2165}
2166
2167000000,00000,5.RT,5.RD,5.SHIFT,000010:SPECIAL:32::SRL
2168"srl r<RD>, r<RT>, <SHIFT>"
2169*mipsI,mipsII,mipsIII,mipsIV:
2170*vr4100:
2171*vr5000:
2172*r3900:
2173{
2174 do_srl (SD_, RT, RD, SHIFT);
2175}
2176
2177
2178:function:::void:do_srlv:int rs, int rt, int rd
2179{
2180 int s = MASKED (GPR[rs], 4, 0);
2181 unsigned32 temp = (unsigned32) GPR[rt] >> s;
2182 TRACE_ALU_INPUT2 (GPR[rt], s);
2183 GPR[rd] = EXTEND32 (temp);
2184 TRACE_ALU_RESULT (GPR[rd]);
2185}
2186
2187000000,5.RS,5.RT,5.RD,00000000110:SPECIAL:32::SRLV
2188"srlv r<RD>, r<RT>, r<RS>"
2189*mipsI,mipsII,mipsIII,mipsIV:
2190*vr4100:
2191*vr5000:
2192*r3900:
2193{
2194 do_srlv (SD_, RS, RT, RD);
2195}
2196
2197
2198000000,5.RS,5.RT,5.RD,00000100010:SPECIAL:32::SUB
2199"sub r<RD>, r<RS>, r<RT>"
2200*mipsI,mipsII,mipsIII,mipsIV:
2201*vr4100:
2202*vr5000:
2203*r3900:
2204{
2205 TRACE_ALU_INPUT2 (GPR[RS], GPR[RT]);
2206 {
2207 ALU32_BEGIN (GPR[RS]);
2208 ALU32_SUB (GPR[RT]);
2209 ALU32_END (GPR[RD]);
2210 }
2211 TRACE_ALU_RESULT (GPR[RD]);
2212}
2213
2214
2215:function:::void:do_subu:int rs, int rt, int rd
2216{
2217 TRACE_ALU_INPUT2 (GPR[rs], GPR[rt]);
2218 GPR[rd] = EXTEND32 (GPR[rs] - GPR[rt]);
2219 TRACE_ALU_RESULT (GPR[rd]);
2220}
2221
2222000000,5.RS,5.RT,5.RD,00000100011:SPECIAL:32::SUBU
2223"subu r<RD>, r<RS>, r<RT>"
2224*mipsI,mipsII,mipsIII,mipsIV:
2225*vr4100:
2226*vr5000:
2227*r3900:
2228{
2229 do_subu (SD_, RS, RT, RD);
2230}
2231
2232
2233101011,5.BASE,5.RT,16.OFFSET:NORMAL:32::SW
2234"sw r<RT>, <OFFSET>(r<BASE>)"
2235*mipsI,mipsII,mipsIII,mipsIV:
2236*vr4100:
2237*r3900:
2238*vr5000:
2239{
2240 do_store (SD_, AccessLength_WORD, GPR[BASE], EXTEND16 (OFFSET), GPR[RT]);
2241}
2242
2243
22441110,ZZ!0!1!3,5.BASE,5.RT,16.OFFSET:NORMAL:32::SWCz
2245"swc<ZZ> r<RT>, <OFFSET>(r<BASE>)"
2246*mipsI,mipsII,mipsIII,mipsIV:
2247*vr4100:
2248*vr5000:
2249*r3900:
2250{
2251 do_store (SD_, AccessLength_WORD, GPR[BASE], EXTEND16 (OFFSET), COP_SW (ZZ, RT));
2252}
2253
2254
2255
2256:function:::void:do_store_left:unsigned access, address_word base, address_word offset, unsigned_word rt
2257{
2258 address_word mask = (WITH_TARGET_WORD_BITSIZE == 64 ? 0x7 : 0x3);
2259 address_word reverseendian = (ReverseEndian ? -1 : 0);
2260 address_word bigendiancpu = (BigEndianCPU ? -1 : 0);
2261 unsigned int byte;
2262 unsigned int word;
2263 address_word paddr;
2264 int uncached;
2265 unsigned64 memval;
2266 address_word vaddr;
2267 int nr_lhs_bits;
2268 int nr_rhs_bits;
2269
2270 vaddr = base + offset;
2271 AddressTranslation (vaddr, isDATA, isSTORE, &paddr, &uncached, isTARGET, isREAL);
2272 paddr = (paddr ^ (reverseendian & mask));
2273 if (BigEndianMem == 0)
2274 paddr = paddr & ~access;
2275
2276 /* compute where within the word/mem we are */
2277 byte = ((vaddr ^ bigendiancpu) & access); /* 0..access */
2278 word = ((vaddr ^ bigendiancpu) & (mask & ~access)) / (access + 1); /* 0..1 */
2279 nr_lhs_bits = 8 * byte + 8;
2280 nr_rhs_bits = 8 * access - 8 * byte;
2281 /* nr_lhs_bits + nr_rhs_bits == 8 * (accesss + 1) */
2282 /* fprintf (stderr, "s[wd]l: 0x%08lx%08lx 0x%08lx%08lx %d:%d %d+%d\n",
2283 (long) ((unsigned64) vaddr >> 32), (long) vaddr,
2284 (long) ((unsigned64) paddr >> 32), (long) paddr,
2285 word, byte, nr_lhs_bits, nr_rhs_bits); */
2286
2287 if (word == 0)
2288 {
2289 memval = (rt >> nr_rhs_bits);
2290 }
2291 else
2292 {
2293 memval = (rt << nr_lhs_bits);
2294 }
2295 /* fprintf (stderr, "s[wd]l: 0x%08lx%08lx -> 0x%08lx%08lx\n",
2296 (long) ((unsigned64) rt >> 32), (long) rt,
2297 (long) ((unsigned64) memval >> 32), (long) memval); */
2298 StoreMemory (uncached, byte, memval, 0, paddr, vaddr, isREAL);
2299}
2300
2301
2302101010,5.BASE,5.RT,16.OFFSET:NORMAL:32::SWL
2303"swl r<RT>, <OFFSET>(r<BASE>)"
2304*mipsI,mipsII,mipsIII,mipsIV:
2305*vr4100:
2306*vr5000:
2307*r3900:
2308{
2309 do_store_left (SD_, AccessLength_WORD, GPR[BASE], EXTEND16 (OFFSET), GPR[RT]);
2310}
2311
2312
2313:function:::void:do_store_right:unsigned access, address_word base, address_word offset, unsigned_word rt
2314{
2315 address_word mask = (WITH_TARGET_WORD_BITSIZE == 64 ? 0x7 : 0x3);
2316 address_word reverseendian = (ReverseEndian ? -1 : 0);
2317 address_word bigendiancpu = (BigEndianCPU ? -1 : 0);
2318 unsigned int byte;
2319 address_word paddr;
2320 int uncached;
2321 unsigned64 memval;
2322 address_word vaddr;
2323
2324 vaddr = base + offset;
2325 AddressTranslation (vaddr, isDATA, isSTORE, &paddr, &uncached, isTARGET, isREAL);
2326 paddr = (paddr ^ (reverseendian & mask));
2327 if (BigEndianMem != 0)
2328 paddr &= ~access;
2329 byte = ((vaddr & mask) ^ (bigendiancpu & mask));
2330 memval = (rt << (byte * 8));
2331 StoreMemory (uncached, access - (access & byte), memval, 0, paddr, vaddr, isREAL);
2332}
2333
2334101110,5.BASE,5.RT,16.OFFSET:NORMAL:32::SWR
2335"swr r<RT>, <OFFSET>(r<BASE>)"
2336*mipsI,mipsII,mipsIII,mipsIV:
2337*vr4100:
2338*vr5000:
2339*r3900:
2340{
2341 do_store_right (SD_, AccessLength_WORD, GPR[BASE], EXTEND16 (OFFSET), GPR[RT]);
2342}
2343
2344
2345000000000000000000000,5.STYPE,001111:SPECIAL:32::SYNC
2346"sync":STYPE == 0
2347"sync <STYPE>"
2348*mipsII:
2349*mipsIII:
2350*mipsIV:
2351*vr4100:
2352*vr5000:
2353*r3900:
2354{
2355 SyncOperation (STYPE);
2356}
2357
2358
2359000000,20.CODE,001100:SPECIAL:32::SYSCALL
2360"syscall <CODE>"
2361*mipsI,mipsII,mipsIII,mipsIV:
2362*vr4100:
2363*vr5000:
2364*r3900:
2365{
2366 SignalException(SystemCall, instruction_0);
2367}
2368
2369
2370000000,5.RS,5.RT,10.CODE,110100:SPECIAL:32::TEQ
2371"teq r<RS>, r<RT>"
2372*mipsII:
2373*mipsIII:
2374*mipsIV:
2375*vr4100:
2376*vr5000:
2377{
2378 if ((signed_word) GPR[RS] == (signed_word) GPR[RT])
2379 SignalException(Trap, instruction_0);
2380}
2381
2382
2383000001,5.RS,01100,16.IMMEDIATE:REGIMM:32::TEQI
2384"teqi r<RS>, <IMMEDIATE>"
2385*mipsII:
2386*mipsIII:
2387*mipsIV:
2388*vr4100:
2389*vr5000:
2390{
2391 if ((signed_word) GPR[RS] == (signed_word) EXTEND16 (IMMEDIATE))
2392 SignalException(Trap, instruction_0);
2393}
2394
2395
2396000000,5.RS,5.RT,10.CODE,110000:SPECIAL:32::TGE
2397"tge r<RS>, r<RT>"
2398*mipsII:
2399*mipsIII:
2400*mipsIV:
2401*vr4100:
2402*vr5000:
2403{
2404 if ((signed_word) GPR[RS] >= (signed_word) GPR[RT])
2405 SignalException(Trap, instruction_0);
2406}
2407
2408
2409000001,5.RS,01000,16.IMMEDIATE:REGIMM:32::TGEI
2410"tgei r<RS>, <IMMEDIATE>"
2411*mipsII:
2412*mipsIII:
2413*mipsIV:
2414*vr4100:
2415*vr5000:
2416{
2417 if ((signed_word) GPR[RS] >= (signed_word) EXTEND16 (IMMEDIATE))
2418 SignalException(Trap, instruction_0);
2419}
2420
2421
2422000001,5.RS,01001,16.IMMEDIATE:REGIMM:32::TGEIU
2423"tgeiu r<RS>, <IMMEDIATE>"
2424*mipsII:
2425*mipsIII:
2426*mipsIV:
2427*vr4100:
2428*vr5000:
2429{
2430 if ((unsigned_word) GPR[RS] >= (unsigned_word) EXTEND16 (IMMEDIATE))
2431 SignalException(Trap, instruction_0);
2432}
2433
2434
2435000000,5.RS,5.RT,10.CODE,110001:SPECIAL:32::TGEU
2436"tgeu r<RS>, r<RT>"
2437*mipsII:
2438*mipsIII:
2439*mipsIV:
2440*vr4100:
2441*vr5000:
2442{
2443 if ((unsigned_word) GPR[RS] >= (unsigned_word) GPR[RT])
2444 SignalException(Trap, instruction_0);
2445}
2446
2447
2448000000,5.RS,5.RT,10.CODE,110010:SPECIAL:32::TLT
2449"tlt r<RS>, r<RT>"
2450*mipsII:
2451*mipsIII:
2452*mipsIV:
2453*vr4100:
2454*vr5000:
2455{
2456 if ((signed_word) GPR[RS] < (signed_word) GPR[RT])
2457 SignalException(Trap, instruction_0);
2458}
2459
2460
2461000001,5.RS,01010,16.IMMEDIATE:REGIMM:32::TLTI
2462"tlti r<RS>, <IMMEDIATE>"
2463*mipsII:
2464*mipsIII:
2465*mipsIV:
2466*vr4100:
2467*vr5000:
2468{
2469 if ((signed_word) GPR[RS] < (signed_word) EXTEND16 (IMMEDIATE))
2470 SignalException(Trap, instruction_0);
2471}
2472
2473
2474000001,5.RS,01011,16.IMMEDIATE:REGIMM:32::TLTIU
2475"tltiu r<RS>, <IMMEDIATE>"
2476*mipsII:
2477*mipsIII:
2478*mipsIV:
2479*vr4100:
2480*vr5000:
2481{
2482 if ((unsigned_word) GPR[RS] < (unsigned_word) EXTEND16 (IMMEDIATE))
2483 SignalException(Trap, instruction_0);
2484}
2485
2486
2487000000,5.RS,5.RT,10.CODE,110011:SPECIAL:32::TLTU
2488"tltu r<RS>, r<RT>"
2489*mipsII:
2490*mipsIII:
2491*mipsIV:
2492*vr4100:
2493*vr5000:
2494{
2495 if ((unsigned_word) GPR[RS] < (unsigned_word) GPR[RT])
2496 SignalException(Trap, instruction_0);
2497}
2498
2499
2500000000,5.RS,5.RT,10.CODE,110110:SPECIAL:32::TNE
2501"tne r<RS>, r<RT>"
2502*mipsII:
2503*mipsIII:
2504*mipsIV:
2505*vr4100:
2506*vr5000:
2507{
2508 if ((signed_word) GPR[RS] != (signed_word) GPR[RT])
2509 SignalException(Trap, instruction_0);
2510}
2511
2512
2513000001,5.RS,01110,16.IMMEDIATE:REGIMM:32::TNEI
2514"tne r<RS>, <IMMEDIATE>"
2515*mipsII:
2516*mipsIII:
2517*mipsIV:
2518*vr4100:
2519*vr5000:
2520{
2521 if ((signed_word) GPR[RS] != (signed_word) EXTEND16 (IMMEDIATE))
2522 SignalException(Trap, instruction_0);
2523}
2524
2525
2526:function:::void:do_xor:int rs, int rt, int rd
2527{
2528 TRACE_ALU_INPUT2 (GPR[rs], GPR[rt]);
2529 GPR[rd] = GPR[rs] ^ GPR[rt];
2530 TRACE_ALU_RESULT (GPR[rd]);
2531}
2532
2533000000,5.RS,5.RT,5.RD,00000100110:SPECIAL:32::XOR
2534"xor r<RD>, r<RS>, r<RT>"
2535*mipsI,mipsII,mipsIII,mipsIV:
2536*vr4100:
2537*vr5000:
2538*r3900:
2539{
2540 do_xor (SD_, RS, RT, RD);
2541}
2542
2543
2544:function:::void:do_xori:int rs, int rt, unsigned16 immediate
2545{
2546 TRACE_ALU_INPUT2 (GPR[rs], immediate);
2547 GPR[rt] = GPR[rs] ^ immediate;
2548 TRACE_ALU_RESULT (GPR[rt]);
2549}
2550
2551001110,5.RS,5.RT,16.IMMEDIATE:NORMAL:32::XORI
2552"xori r<RT>, r<RS>, <IMMEDIATE>"
2553*mipsI,mipsII,mipsIII,mipsIV:
2554*vr4100:
2555*vr5000:
2556*r3900:
2557{
2558 do_xori (SD_, RS, RT, IMMEDIATE);
2559}
2560
2561\f
2562//
2563// MIPS Architecture:
2564//
2565// FPU Instruction Set (COP1 & COP1X)
2566//
2567
2568
2569:%s::::FMT:int fmt
2570{
2571 switch (fmt)
2572 {
2573 case fmt_single: return "s";
2574 case fmt_double: return "d";
2575 case fmt_word: return "w";
2576 case fmt_long: return "l";
2577 default: return "?";
2578 }
2579}
2580
2581:%s::::X:int x
2582{
2583 switch (x)
2584 {
2585 case 0: return "f";
2586 case 1: return "t";
2587 default: return "?";
2588 }
2589}
2590
2591:%s::::TF:int tf
2592{
2593 if (tf)
2594 return "t";
2595 else
2596 return "f";
2597}
2598
2599:%s::::ND:int nd
2600{
2601 if (nd)
2602 return "l";
2603 else
2604 return "";
2605}
2606
2607:%s::::COND:int cond
2608{
2609 switch (cond)
2610 {
2611 case 00: return "f";
2612 case 01: return "un";
2613 case 02: return "eq";
2614 case 03: return "ueq";
2615 case 04: return "olt";
2616 case 05: return "ult";
2617 case 06: return "ole";
2618 case 07: return "ule";
2619 case 010: return "sf";
2620 case 011: return "ngle";
2621 case 012: return "seq";
2622 case 013: return "ngl";
2623 case 014: return "lt";
2624 case 015: return "nge";
2625 case 016: return "le";
2626 case 017: return "ngt";
2627 default: return "?";
2628 }
2629}
2630
2631
2632010001,10,3.FMT,00000,5.FS,5.FD,000101:COP1:32,f::ABS.fmt
2633"abs.%s<FMT> f<FD>, f<FS>"
2634*mipsI,mipsII,mipsIII,mipsIV:
2635*vr4100:
2636*vr5000:
2637*r3900:
2638{
2639 unsigned32 instruction = instruction_0;
2640 int destreg = ((instruction >> 6) & 0x0000001F);
2641 int fs = ((instruction >> 11) & 0x0000001F);
2642 int format = ((instruction >> 21) & 0x00000007);
2643 {
2644 if ((format != fmt_single) && (format != fmt_double))
2645 SignalException(ReservedInstruction,instruction);
2646 else
2647 StoreFPR(destreg,format,AbsoluteValue(ValueFPR(fs,format),format));
2648 }
2649}
2650
2651
2652
2653010001,10,3.FMT,5.FT,5.FS,5.FD,000000:COP1:32,f::ADD.fmt
2654"add.%s<FMT> f<FD>, f<FS>, f<FT>"
2655*mipsI,mipsII,mipsIII,mipsIV:
2656*vr4100:
2657*vr5000:
2658*r3900:
2659{
2660 unsigned32 instruction = instruction_0;
2661 int destreg = ((instruction >> 6) & 0x0000001F);
2662 int fs = ((instruction >> 11) & 0x0000001F);
2663 int ft = ((instruction >> 16) & 0x0000001F);
2664 int format = ((instruction >> 21) & 0x00000007);
2665 {
2666 if ((format != fmt_single) && (format != fmt_double))
2667 SignalException(ReservedInstruction, instruction);
2668 else
2669 StoreFPR(destreg,format,Add(ValueFPR(fs,format),ValueFPR(ft,format),format));
2670 }
2671}
2672
2673
2674
2675// BC1F
2676// BC1FL
2677// BC1T
2678// BC1TL
2679
2680010001,01000,3.0,1.ND,1.TF,16.OFFSET:COP1S:32,f::BC1a
2681"bc1%s<TF>%s<ND> <OFFSET>"
2682*mipsI,mipsII,mipsIII:
2683{
2684 check_branch_bug ();
2685 TRACE_BRANCH_INPUT (PREVCOC1());
2686 if (PREVCOC1() == TF)
2687 {
2688 address_word dest = NIA + (EXTEND16 (OFFSET) << 2);
2689 TRACE_BRANCH_RESULT (dest);
2690 mark_branch_bug (dest);
2691 DELAY_SLOT (dest);
2692 }
2693 else if (ND)
2694 {
2695 TRACE_BRANCH_RESULT (0);
2696 NULLIFY_NEXT_INSTRUCTION ();
2697 }
2698 else
2699 {
2700 TRACE_BRANCH_RESULT (NIA);
2701 }
2702}
2703
2704010001,01000,3.CC,1.ND,1.TF,16.OFFSET:COP1S:32,f::BC1b
2705"bc1%s<TF>%s<ND> <OFFSET>":CC == 0
2706"bc1%s<TF>%s<ND> <CC>, <OFFSET>"
2707*mipsIV:
2708*vr5000:
2709#*vr4100:
2710*r3900:
2711{
2712 check_branch_bug ();
2713 if (GETFCC(CC) == TF)
2714 {
2715 address_word dest = NIA + (EXTEND16 (OFFSET) << 2);
2716 mark_branch_bug (dest);
2717 DELAY_SLOT (dest);
2718 }
2719 else if (ND)
2720 {
2721 NULLIFY_NEXT_INSTRUCTION ();
2722 }
2723}
2724
2725
2726
2727
2728
2729
2730// C.EQ.S
2731// C.EQ.D
2732// ...
2733
2734:function:::void:do_c_cond_fmt:int fmt, int ft, int fs, int cc, int cond, instruction_word insn
2735{
2736 if ((fmt != fmt_single) && (fmt != fmt_double))
2737 SignalException (ReservedInstruction, insn);
2738 else
2739 {
2740 int less;
2741 int equal;
2742 int unordered;
2743 int condition;
2744 unsigned64 ofs = ValueFPR (fs, fmt);
2745 unsigned64 oft = ValueFPR (ft, fmt);
2746 if (NaN (ofs, fmt) || NaN (oft, fmt))
2747 {
2748 if (FCSR & FP_ENABLE (IO))
2749 {
2750 FCSR |= FP_CAUSE (IO);
2751 SignalExceptionFPE ();
2752 }
2753 less = 0;
2754 equal = 0;
2755 unordered = 1;
2756 }
2757 else
2758 {
2759 less = Less (ofs, oft, fmt);
2760 equal = Equal (ofs, oft, fmt);
2761 unordered = 0;
2762 }
2763 condition = (((cond & (1 << 2)) && less)
2764 || ((cond & (1 << 1)) && equal)
2765 || ((cond & (1 << 0)) && unordered));
2766 SETFCC (cc, condition);
2767 }
2768}
2769
2770010001,10,3.FMT,5.FT,5.FS,3.0,00,11,4.COND:COP1:32::C.cond.fmta
2771"c.%s<COND>.%s<FMT> f<FS>, f<FT>"
2772*mipsI,mipsII,mipsIII:
2773{
2774 do_c_cond_fmt (SD_, FMT, FT, FS, 0, COND, instruction_0);
2775}
2776
2777010001,10,3.FMT,5.FT,5.FS,3.CC,00,11,4.COND:COP1:32::C.cond.fmtb
2778"c.%s<COND>.%s<FMT> f<FS>, f<FT>":CC == 0
2779"c.%s<COND>.%s<FMT> <CC>, f<FS>, f<FT>"
2780*mipsIV:
2781*vr4100:
2782*vr5000:
2783*r3900:
2784{
2785 do_c_cond_fmt (SD_, FMT, FT, FS, CC, COND, instruction_0);
2786}
2787
2788
2789010001,10,3.FMT,00000,5.FS,5.FD,001010:COP1:64::CEIL.L.fmt
2790"ceil.l.%s<FMT> f<FD>, f<FS>"
2791*mipsIII:
2792*mipsIV:
2793*vr4100:
2794*vr5000:
2795*r3900:
2796{
2797 unsigned32 instruction = instruction_0;
2798 int destreg = ((instruction >> 6) & 0x0000001F);
2799 int fs = ((instruction >> 11) & 0x0000001F);
2800 int format = ((instruction >> 21) & 0x00000007);
2801 {
2802 if ((format != fmt_single) && (format != fmt_double))
2803 SignalException(ReservedInstruction,instruction);
2804 else
2805 StoreFPR(destreg,fmt_long,Convert(FP_RM_TOPINF,ValueFPR(fs,format),format,fmt_long));
2806 }
2807}
2808
2809
2810010001,10,3.FMT,00000,5.FS,5.FD,001110:COP1:32::CEIL.W
2811*mipsII:
2812*mipsIII:
2813*mipsIV:
2814*vr4100:
2815*vr5000:
2816*r3900:
2817{
2818 unsigned32 instruction = instruction_0;
2819 int destreg = ((instruction >> 6) & 0x0000001F);
2820 int fs = ((instruction >> 11) & 0x0000001F);
2821 int format = ((instruction >> 21) & 0x00000007);
2822 {
2823 if ((format != fmt_single) && (format != fmt_double))
2824 SignalException(ReservedInstruction,instruction);
2825 else
2826 StoreFPR(destreg,fmt_word,Convert(FP_RM_TOPINF,ValueFPR(fs,format),format,fmt_word));
2827 }
2828}
2829
2830
2831// CFC1
2832// CTC1
2833010001,00,X,10,5.RT,5.FS,00000000000:COP1Sa:32::CxC1
2834"c%s<X>c1 r<RT>, f<FS>"
2835*mipsI:
2836*mipsII:
2837*mipsIII:
2838{
2839 if (X)
2840 {
2841 if (FS == 0)
2842 PENDING_FILL((FS + FCR0IDX),VL4_8(GPR[RT]));
2843 else if (FS == 31)
2844 PENDING_FILL((FS + FCR31IDX),VL4_8(GPR[RT]));
2845 /* else NOP */
2846 PENDING_FILL(COCIDX,0); /* special case */
2847 }
2848 else
2849 { /* control from */
2850 if (FS == 0)
2851 PENDING_FILL(RT,SIGNEXTEND(FCR0,32));
2852 else if (FS == 31)
2853 PENDING_FILL(RT,SIGNEXTEND(FCR31,32));
2854 /* else NOP */
2855 }
2856}
2857010001,00,X,10,5.RT,5.FS,00000000000:COP1Sb:32::CxC1
2858"c%s<X>c1 r<RT>, f<FS>"
2859*mipsIV:
2860*vr4100:
2861*vr5000:
2862*r3900:
2863{
2864 if (X)
2865 {
2866 /* control to */
2867 TRACE_ALU_INPUT1 (GPR[RT]);
2868 if (FS == 0)
2869 {
2870 FCR0 = VL4_8(GPR[RT]);
2871 TRACE_ALU_RESULT (FCR0);
2872 }
2873 else if (FS == 31)
2874 {
2875 FCR31 = VL4_8(GPR[RT]);
2876 SETFCC(0,((FCR31 & (1 << 23)) ? 1 : 0));
2877 TRACE_ALU_RESULT (FCR31);
2878 }
2879 else
2880 {
2881 TRACE_ALU_RESULT0 ();
2882 }
2883 /* else NOP */
2884 }
2885 else
2886 { /* control from */
2887 if (FS == 0)
2888 {
2889 TRACE_ALU_INPUT1 (FCR0);
2890 GPR[RT] = SIGNEXTEND (FCR0, 32);
2891 }
2892 else if (FS == 31)
2893 {
2894 TRACE_ALU_INPUT1 (FCR31);
2895 GPR[RT] = SIGNEXTEND (FCR31, 32);
2896 }
2897 TRACE_ALU_RESULT (GPR[RT]);
2898 /* else NOP */
2899 }
2900}
2901
2902
2903//
2904// FIXME: Does not correctly differentiate between mips*
2905//
2906010001,10,3.FMT,00000,5.FS,5.FD,100001:COP1:32::CVT.D.fmt
2907"cvt.d.%s<FMT> f<FD>, f<FS>"
2908*mipsI,mipsII,mipsIII,mipsIV:
2909*vr4100:
2910*vr5000:
2911*r3900:
2912{
2913 unsigned32 instruction = instruction_0;
2914 int destreg = ((instruction >> 6) & 0x0000001F);
2915 int fs = ((instruction >> 11) & 0x0000001F);
2916 int format = ((instruction >> 21) & 0x00000007);
2917 {
2918 if ((format == fmt_double) | 0)
2919 SignalException(ReservedInstruction,instruction);
2920 else
2921 StoreFPR(destreg,fmt_double,Convert(GETRM(),ValueFPR(fs,format),format,fmt_double));
2922 }
2923}
2924
2925
2926010001,10,3.FMT,00000,5.FS,5.FD,100101:COP1:64::CVT.L.fmt
2927"cvt.l.%s<FMT> f<FD>, f<FS>"
2928*mipsIII:
2929*mipsIV:
2930*vr4100:
2931*vr5000:
2932*r3900:
2933{
2934 unsigned32 instruction = instruction_0;
2935 int destreg = ((instruction >> 6) & 0x0000001F);
2936 int fs = ((instruction >> 11) & 0x0000001F);
2937 int format = ((instruction >> 21) & 0x00000007);
2938 {
2939 if ((format == fmt_long) | ((format == fmt_long) || (format == fmt_word)))
2940 SignalException(ReservedInstruction,instruction);
2941 else
2942 StoreFPR(destreg,fmt_long,Convert(GETRM(),ValueFPR(fs,format),format,fmt_long));
2943 }
2944}
2945
2946
2947//
2948// FIXME: Does not correctly differentiate between mips*
2949//
2950010001,10,3.FMT,00000,5.FS,5.FD,100000:COP1:32::CVT.S.fmt
2951"cvt.s.%s<FMT> f<FD>, f<FS>"
2952*mipsI,mipsII,mipsIII,mipsIV:
2953*vr4100:
2954*vr5000:
2955*r3900:
2956{
2957 unsigned32 instruction = instruction_0;
2958 int destreg = ((instruction >> 6) & 0x0000001F);
2959 int fs = ((instruction >> 11) & 0x0000001F);
2960 int format = ((instruction >> 21) & 0x00000007);
2961 {
2962 if ((format == fmt_single) | 0)
2963 SignalException(ReservedInstruction,instruction);
2964 else
2965 StoreFPR(destreg,fmt_single,Convert(GETRM(),ValueFPR(fs,format),format,fmt_single));
2966 }
2967}
2968
2969
2970010001,10,3.FMT,00000,5.FS,5.FD,100100:COP1:32::CVT.W.fmt
2971"cvt.w.%s<FMT> f<FD>, f<FS>"
2972*mipsI,mipsII,mipsIII,mipsIV:
2973*vr4100:
2974*vr5000:
2975*r3900:
2976{
2977 unsigned32 instruction = instruction_0;
2978 int destreg = ((instruction >> 6) & 0x0000001F);
2979 int fs = ((instruction >> 11) & 0x0000001F);
2980 int format = ((instruction >> 21) & 0x00000007);
2981 {
2982 if ((format == fmt_word) | ((format == fmt_long) || (format == fmt_word)))
2983 SignalException(ReservedInstruction,instruction);
2984 else
2985 StoreFPR(destreg,fmt_word,Convert(GETRM(),ValueFPR(fs,format),format,fmt_word));
2986 }
2987}
2988
2989
2990010001,10,3.FMT,5.FT,5.FS,5.FD,000011:COP1:32::DIV.fmt
2991"div.%s<FMT> f<FD>, f<FS>, f<FT>"
2992*mipsI,mipsII,mipsIII,mipsIV:
2993*vr4100:
2994*vr5000:
2995*r3900:
2996{
2997 unsigned32 instruction = instruction_0;
2998 int destreg = ((instruction >> 6) & 0x0000001F);
2999 int fs = ((instruction >> 11) & 0x0000001F);
3000 int ft = ((instruction >> 16) & 0x0000001F);
3001 int format = ((instruction >> 21) & 0x00000007);
3002 {
3003 if ((format != fmt_single) && (format != fmt_double))
3004 SignalException(ReservedInstruction,instruction);
3005 else
3006 StoreFPR(destreg,format,Divide(ValueFPR(fs,format),ValueFPR(ft,format),format));
3007 }
3008}
3009
3010
3011// DMFC1
3012// DMTC1
3013010001,00,X,01,5.RT,5.FS,00000000000:COP1Sa:64::DMxC1
3014"dm%s<X>c1 r<RT>, f<FS>"
3015*mipsIII:
3016{
3017 if (X)
3018 {
3019 if (SizeFGR() == 64)
3020 PENDING_FILL((FS + FGRIDX),GPR[RT]);
3021 else if ((FS & 0x1) == 0)
3022 {
3023 PENDING_FILL(((FS + 1) + FGRIDX),VH4_8(GPR[RT]));
3024 PENDING_FILL((FS + FGRIDX),VL4_8(GPR[RT]));
3025 }
3026 }
3027 else
3028 {
3029 if (SizeFGR() == 64)
3030 PENDING_FILL(RT,FGR[FS]);
3031 else if ((FS & 0x1) == 0)
3032 PENDING_FILL(RT,(SET64HI(FGR[FS+1]) | FGR[FS]));
3033 else
3034 PENDING_FILL(RT,SET64HI(0xDEADC0DE) | 0xBAD0BAD0);
3035 }
3036}
3037010001,00,X,01,5.RT,5.FS,00000000000:COP1Sb:64::DMxC1
3038"dm%s<X>c1 r<RT>, f<FS>"
3039*mipsIV:
3040*vr4100:
3041*vr5000:
3042*r3900:
3043{
3044 if (X)
3045 {
3046 if (SizeFGR() == 64)
3047 StoreFPR (FS, fmt_uninterpreted_64, GPR[RT]);
3048 else if ((FS & 0x1) == 0)
3049 StoreFPR (FS, fmt_uninterpreted_64, SET64HI (FGR[FS+1]) | FGR[FS]);
3050 }
3051 else
3052 {
3053 if (SizeFGR() == 64)
3054 GPR[RT] = FGR[FS];
3055 else if ((FS & 0x1) == 0)
3056 GPR[RT] = SET64HI (FGR[FS+1]) | FGR[FS];
3057 else
3058 GPR[RT] = SET64HI (0xDEADC0DE) | 0xBAD0BAD0;
3059 }
3060}
3061
3062
3063010001,10,3.FMT,00000,5.FS,5.FD,001011:COP1:64::FLOOR.L.fmt
3064"floor.l.%s<FMT> f<FD>, f<FS>"
3065*mipsIII:
3066*mipsIV:
3067*vr4100:
3068*vr5000:
3069*r3900:
3070{
3071 unsigned32 instruction = instruction_0;
3072 int destreg = ((instruction >> 6) & 0x0000001F);
3073 int fs = ((instruction >> 11) & 0x0000001F);
3074 int format = ((instruction >> 21) & 0x00000007);
3075 {
3076 if ((format != fmt_single) && (format != fmt_double))
3077 SignalException(ReservedInstruction,instruction);
3078 else
3079 StoreFPR(destreg,fmt_long,Convert(FP_RM_TOMINF,ValueFPR(fs,format),format,fmt_long));
3080 }
3081}
3082
3083
3084010001,10,3.FMT,00000,5.FS,5.FD,001111:COP1:32::FLOOR.W.fmt
3085"floor.w.%s<FMT> f<FD>, f<FS>"
3086*mipsII:
3087*mipsIII:
3088*mipsIV:
3089*vr4100:
3090*vr5000:
3091*r3900:
3092{
3093 unsigned32 instruction = instruction_0;
3094 int destreg = ((instruction >> 6) & 0x0000001F);
3095 int fs = ((instruction >> 11) & 0x0000001F);
3096 int format = ((instruction >> 21) & 0x00000007);
3097 {
3098 if ((format != fmt_single) && (format != fmt_double))
3099 SignalException(ReservedInstruction,instruction);
3100 else
3101 StoreFPR(destreg,fmt_word,Convert(FP_RM_TOMINF,ValueFPR(fs,format),format,fmt_word));
3102 }
3103}
3104
3105
3106110101,5.BASE,5.FT,16.OFFSET:COP1:64::LDC1
3107"ldc1 f<FT>, <OFFSET>(r<BASE>)"
e514a9d6 3108*mipsI:
c906108c
SS		 3109*mipsII:
3110*mipsIII:
3111*mipsIV:
3112*vr4100:
3113*vr5000:
3114*r3900:
3115{
3116 COP_LD (1, FT, do_load (SD_, AccessLength_DOUBLEWORD, GPR[BASE], EXTEND16 (OFFSET)));
3117}
3118
3119
3120010011,5.BASE,5.INDEX,5.0,5.FD,000001:COP1X:64::LDXC1
3121"ldxc1 f<FD>, r<INDEX>(r<BASE>)"
3122*mipsIV:
3123*vr5000:
3124{
3125 COP_LD (1, FD, do_load (SD_, AccessLength_DOUBLEWORD, GPR[BASE], GPR[INDEX]));
3126}
3127
3128
3129
3130110001,5.BASE,5.FT,16.OFFSET:COP1:32::LWC1
3131"lwc1 f<FT>, <OFFSET>(r<BASE>)"
3132*mipsI,mipsII,mipsIII,mipsIV:
3133*vr4100:
3134*vr5000:
3135*r3900:
3136{
3137 COP_LW (1, FT, do_load (SD_, AccessLength_WORD, GPR[BASE], EXTEND16 (OFFSET)));
3138}
3139
3140
3141010011,5.BASE,5.INDEX,5.0,5.FD,000000:COP1X:32::LWXC1
3142"lwxc1 f<FD>, r<INDEX>(r<BASE>)"
3143*mipsIV:
3144*vr5000:
3145{
3146 COP_LW (1, FD, do_load (SD_, AccessLength_WORD, GPR[BASE], GPR[INDEX]));
3147}
3148
3149
3150
3151//
3152// FIXME: Not correct for mips*
3153//
3154010011,5.FR,5.FT,5.FS,5.FD,100,001:COP1X:32,f::MADD.D
3155"madd.d f<FD>, f<FR>, f<FS>, f<FT>"
3156*mipsIV:
3157*vr5000:
3158{
3159 unsigned32 instruction = instruction_0;
3160 int destreg = ((instruction >> 6) & 0x0000001F);
3161 int fs = ((instruction >> 11) & 0x0000001F);
3162 int ft = ((instruction >> 16) & 0x0000001F);
3163 int fr = ((instruction >> 21) & 0x0000001F);
3164 {
3165 StoreFPR(destreg,fmt_double,Add(Multiply(ValueFPR(fs,fmt_double),ValueFPR(ft,fmt_double),fmt_double),ValueFPR(fr,fmt_double),fmt_double));
3166 }
3167}
3168
3169
3170010011,5.FR,5.FT,5.FS,5.FD,100,000:COP1X:32,f::MADD.S
3171"madd.s f<FD>, f<FR>, f<FS>, f<FT>"
3172*mipsIV:
3173*vr5000:
3174{
3175 unsigned32 instruction = instruction_0;
3176 int destreg = ((instruction >> 6) & 0x0000001F);
3177 int fs = ((instruction >> 11) & 0x0000001F);
3178 int ft = ((instruction >> 16) & 0x0000001F);
3179 int fr = ((instruction >> 21) & 0x0000001F);
3180 {
3181 StoreFPR(destreg,fmt_single,Add(Multiply(ValueFPR(fs,fmt_single),ValueFPR(ft,fmt_single),fmt_single),ValueFPR(fr,fmt_single),fmt_single));
3182 }
3183}
3184
3185
3186// MFC1
3187// MTC1
3188010001,00,X,00,5.RT,5.FS,00000000000:COP1Sa:32::MxC1
3189"m%s<X>c1 r<RT>, f<FS>"
3190*mipsI:
3191*mipsII:
3192*mipsIII:
3193{
3194 if (X)
3195 { /*MTC1*/
3196 if (SizeFGR() == 64)
3197 PENDING_FILL ((FS + FGRIDX), (SET64HI(0xDEADC0DE) | VL4_8(GPR[RT])));
3198 else
3199 PENDING_FILL ((FS + FGRIDX), VL4_8(GPR[RT]));
3200 }
3201 else /*MFC1*/
3202 PENDING_FILL (RT, SIGNEXTEND(FGR[FS],32));
3203}
3204010001,00,X,00,5.RT,5.FS,00000000000:COP1Sb:32::MxC1
3205"m%s<X>c1 r<RT>, f<FS>"
3206*mipsIV:
3207*vr4100:
3208*vr5000:
3209*r3900:
3210{
3211 int fs = FS;
3212 if (X)
3213 /*MTC1*/
3214 StoreFPR (FS, fmt_uninterpreted_32, VL4_8 (GPR[RT]));
3215 else /*MFC1*/
3216 GPR[RT] = SIGNEXTEND(FGR[FS],32);
3217}
3218
3219
3220010001,10,3.FMT,00000,5.FS,5.FD,000110:COP1:32::MOV.fmt
3221"mov.%s<FMT> f<FD>, f<FS>"
3222*mipsI,mipsII,mipsIII,mipsIV:
3223*vr4100:
3224*vr5000:
3225*r3900:
3226{
3227 unsigned32 instruction = instruction_0;
3228 int destreg = ((instruction >> 6) & 0x0000001F);
3229 int fs = ((instruction >> 11) & 0x0000001F);
3230 int format = ((instruction >> 21) & 0x00000007);
3231 {
3232 StoreFPR(destreg,format,ValueFPR(fs,format));
3233 }
3234}
3235
3236
3237// MOVF
c2d11a7d 3238// MOVT
c906108c
SS		 3239000000,5.RS,3.CC,0,1.TF,5.RD,00000000001:SPECIAL:32::MOVtf
3240"mov%s<TF> r<RD>, r<RS>, <CC>"
3241*mipsIV:
3242*vr5000:
3243{
3244 if (GETFCC(CC) == TF)
3245 GPR[RD] = GPR[RS];
3246}
3247
3248
3249// MOVF.fmt
c2d11a7d 3250// MOVT.fmt
c906108c
SS		 3251010001,10,3.FMT,3.CC,0,1.TF,5.FS,5.FD,010001:COP1:32::MOVtf.fmt
3252"mov%s<TF>.%s<FMT> f<FD>, f<FS>, <CC>"
3253*mipsIV:
3254*vr5000:
3255{
3256 unsigned32 instruction = instruction_0;
3257 int format = ((instruction >> 21) & 0x00000007);
3258 {
3259 if (GETFCC(CC) == TF)
3260 StoreFPR (FD, format, ValueFPR (FS, format));
3261 else
3262 StoreFPR (FD, format, ValueFPR (FD, format));
3263 }
3264}
3265
3266
3267010001,10,3.FMT,5.RT,5.FS,5.FD,010011:COP1:32::MOVN.fmt
3268*mipsIV:
3269*vr5000:
3270{
3271 unsigned32 instruction = instruction_0;
3272 int destreg = ((instruction >> 6) & 0x0000001F);
3273 int fs = ((instruction >> 11) & 0x0000001F);
3274 int format = ((instruction >> 21) & 0x00000007);
3275 {
3276 StoreFPR(destreg,format,ValueFPR(fs,format));
3277 }
3278}
3279
3280
3281// MOVT see MOVtf
3282
3283
3284// MOVT.fmt see MOVtf.fmt
3285
3286
3287
3288010001,10,3.FMT,5.RT,5.FS,5.FD,010010:COP1:32::MOVZ.fmt
3289"movz.%s<FMT> f<FD>, f<FS>, r<RT>"
3290*mipsIV:
3291*vr5000:
3292{
3293 unsigned32 instruction = instruction_0;
3294 int destreg = ((instruction >> 6) & 0x0000001F);
3295 int fs = ((instruction >> 11) & 0x0000001F);
3296 int format = ((instruction >> 21) & 0x00000007);
3297 {
3298 StoreFPR(destreg,format,ValueFPR(fs,format));
3299 }
3300}
3301
3302
3303// MSUB.fmt
3304010011,5.FR,5.FT,5.FS,5.FD,101,001:COP1X:32::MSUB.D
3305"msub.d f<FD>, f<FR>, f<FS>, f<FT>"
3306*mipsIV:
3307*vr5000:
3308{
3309 unsigned32 instruction = instruction_0;
3310 int destreg = ((instruction >> 6) & 0x0000001F);
3311 int fs = ((instruction >> 11) & 0x0000001F);
3312 int ft = ((instruction >> 16) & 0x0000001F);
3313 int fr = ((instruction >> 21) & 0x0000001F);
3314 {
3315 StoreFPR(destreg,fmt_double,Sub(Multiply(ValueFPR(fs,fmt_double),ValueFPR(ft,fmt_double),fmt_double),ValueFPR(fr,fmt_double),fmt_double));
3316 }
3317}
3318
3319
3320// MSUB.fmt
3321010011,5.FR,5.FT,5.FS,5.FD,101000:COP1X:32::MSUB.S
3322"msub.s f<FD>, f<FR>, f<FS>, f<FT>"
3323*mipsIV:
3324*vr5000:
3325{
3326 unsigned32 instruction = instruction_0;
3327 int destreg = ((instruction >> 6) & 0x0000001F);
3328 int fs = ((instruction >> 11) & 0x0000001F);
3329 int ft = ((instruction >> 16) & 0x0000001F);
3330 int fr = ((instruction >> 21) & 0x0000001F);
3331 {
3332 StoreFPR(destreg,fmt_single,Sub(Multiply(ValueFPR(fs,fmt_single),ValueFPR(ft,fmt_single),fmt_single),ValueFPR(fr,fmt_single),fmt_single));
3333 }
3334}
3335
3336
3337// MTC1 see MxC1
3338
3339
3340010001,10,3.FMT,5.FT,5.FS,5.FD,000010:COP1:32::MUL.fmt
3341"mul.%s<FMT> f<FD>, f<FS>, f<FT>"
3342*mipsI,mipsII,mipsIII,mipsIV:
3343*vr4100:
3344*vr5000:
3345*r3900:
3346{
3347 unsigned32 instruction = instruction_0;
3348 int destreg = ((instruction >> 6) & 0x0000001F);
3349 int fs = ((instruction >> 11) & 0x0000001F);
3350 int ft = ((instruction >> 16) & 0x0000001F);
3351 int format = ((instruction >> 21) & 0x00000007);
3352 {
3353 if ((format != fmt_single) && (format != fmt_double))
3354 SignalException(ReservedInstruction,instruction);
3355 else
3356 StoreFPR(destreg,format,Multiply(ValueFPR(fs,format),ValueFPR(ft,format),format));
3357 }
3358}
3359
3360
3361010001,10,3.FMT,00000,5.FS,5.FD,000111:COP1:32::NEG.fmt
3362"neg.%s<FMT> f<FD>, f<FS>"
3363*mipsI,mipsII,mipsIII,mipsIV:
3364*vr4100:
3365*vr5000:
3366*r3900:
3367{
3368 unsigned32 instruction = instruction_0;
3369 int destreg = ((instruction >> 6) & 0x0000001F);
3370 int fs = ((instruction >> 11) & 0x0000001F);
3371 int format = ((instruction >> 21) & 0x00000007);
3372 {
3373 if ((format != fmt_single) && (format != fmt_double))
3374 SignalException(ReservedInstruction,instruction);
3375 else
3376 StoreFPR(destreg,format,Negate(ValueFPR(fs,format),format));
3377 }
3378}
3379
3380
3381// NMADD.fmt
3382010011,5.FR,5.FT,5.FS,5.FD,110001:COP1X:32::NMADD.D
3383"nmadd.d f<FD>, f<FR>, f<FS>, f<FT>"
3384*mipsIV:
3385*vr5000:
3386{
3387 unsigned32 instruction = instruction_0;
3388 int destreg = ((instruction >> 6) & 0x0000001F);
3389 int fs = ((instruction >> 11) & 0x0000001F);
3390 int ft = ((instruction >> 16) & 0x0000001F);
3391 int fr = ((instruction >> 21) & 0x0000001F);
3392 {
3393 StoreFPR(destreg,fmt_double,Negate(Add(Multiply(ValueFPR(fs,fmt_double),ValueFPR(ft,fmt_double),fmt_double),ValueFPR(fr,fmt_double),fmt_double),fmt_double));
3394 }
3395}
3396
3397
3398// NMADD.fmt
3399010011,5.FR,5.FT,5.FS,5.FD,110000:COP1X:32::NMADD.S
3400"nmadd.s f<FD>, f<FR>, f<FS>, f<FT>"
3401*mipsIV:
3402*vr5000:
3403{
3404 unsigned32 instruction = instruction_0;
3405 int destreg = ((instruction >> 6) & 0x0000001F);
3406 int fs = ((instruction >> 11) & 0x0000001F);
3407 int ft = ((instruction >> 16) & 0x0000001F);
3408 int fr = ((instruction >> 21) & 0x0000001F);
3409 {
3410 StoreFPR(destreg,fmt_single,Negate(Add(Multiply(ValueFPR(fs,fmt_single),ValueFPR(ft,fmt_single),fmt_single),ValueFPR(fr,fmt_single),fmt_single),fmt_single));
3411 }
3412}
3413
3414
3415// NMSUB.fmt
3416010011,5.FR,5.FT,5.FS,5.FD,111001:COP1X:32::NMSUB.D
3417"nmsub.d f<FD>, f<FR>, f<FS>, f<FT>"
3418*mipsIV:
3419*vr5000:
3420{
3421 unsigned32 instruction = instruction_0;
3422 int destreg = ((instruction >> 6) & 0x0000001F);
3423 int fs = ((instruction >> 11) & 0x0000001F);
3424 int ft = ((instruction >> 16) & 0x0000001F);
3425 int fr = ((instruction >> 21) & 0x0000001F);
3426 {
3427 StoreFPR(destreg,fmt_double,Negate(Sub(Multiply(ValueFPR(fs,fmt_double),ValueFPR(ft,fmt_double),fmt_double),ValueFPR(fr,fmt_double),fmt_double),fmt_double));
3428 }
3429}
3430
3431
3432// NMSUB.fmt
3433010011,5.FR,5.FT,5.FS,5.FD,111000:COP1X:32::NMSUB.S
3434"nmsub.s f<FD>, f<FR>, f<FS>, f<FT>"
3435*mipsIV:
3436*vr5000:
3437{
3438 unsigned32 instruction = instruction_0;
3439 int destreg = ((instruction >> 6) & 0x0000001F);
3440 int fs = ((instruction >> 11) & 0x0000001F);
3441 int ft = ((instruction >> 16) & 0x0000001F);
3442 int fr = ((instruction >> 21) & 0x0000001F);
3443 {
3444 StoreFPR(destreg,fmt_single,Negate(Sub(Multiply(ValueFPR(fs,fmt_single),ValueFPR(ft,fmt_single),fmt_single),ValueFPR(fr,fmt_single),fmt_single),fmt_single));
3445 }
3446}
3447
3448
3449010011,5.BASE,5.INDEX,5.HINT,00000001111:COP1X:32::PREFX
3450"prefx <HINT>, r<INDEX>(r<BASE>)"
3451*mipsIV:
3452*vr5000:
3453{
3454 unsigned32 instruction = instruction_0;
3455 int fs = ((instruction >> 11) & 0x0000001F);
3456 signed_word op2 = GPR[((instruction >> 16) & 0x0000001F)];
3457 signed_word op1 = GPR[((instruction >> 21) & 0x0000001F)];
3458 {
3459 address_word vaddr = ((unsigned64)op1 + (unsigned64)op2);
3460 address_word paddr;
3461 int uncached;
3462 if (AddressTranslation(vaddr,isDATA,isLOAD,&paddr,&uncached,isTARGET,isREAL))
3463 Prefetch(uncached,paddr,vaddr,isDATA,fs);
3464 }
3465}
3466
3467010001,10,3.FMT,00000,5.FS,5.FD,010101:COP1:32::RECIP.fmt
c906108c 3468"recip.%s<FMT> f<FD>, f<FS>"
e514a9d6 3469*mipsIV:
c906108c
SS		 3470*vr5000:
3471{
3472 unsigned32 instruction = instruction_0;
3473 int destreg = ((instruction >> 6) & 0x0000001F);
3474 int fs = ((instruction >> 11) & 0x0000001F);
3475 int format = ((instruction >> 21) & 0x00000007);
3476 {
3477 if ((format != fmt_single) && (format != fmt_double))
3478 SignalException(ReservedInstruction,instruction);
3479 else
3480 StoreFPR(destreg,format,Recip(ValueFPR(fs,format),format));
3481 }
3482}
3483
3484
3485010001,10,3.FMT,00000,5.FS,5.FD,001000:COP1:64::ROUND.L.fmt
3486"round.l.%s<FMT> f<FD>, f<FS>"
3487*mipsIII:
3488*mipsIV:
3489*vr4100:
3490*vr5000:
3491*r3900:
3492{
3493 unsigned32 instruction = instruction_0;
3494 int destreg = ((instruction >> 6) & 0x0000001F);
3495 int fs = ((instruction >> 11) & 0x0000001F);
3496 int format = ((instruction >> 21) & 0x00000007);
3497 {
3498 if ((format != fmt_single) && (format != fmt_double))
3499 SignalException(ReservedInstruction,instruction);
3500 else
3501 StoreFPR(destreg,fmt_long,Convert(FP_RM_NEAREST,ValueFPR(fs,format),format,fmt_long));
3502 }
3503}
3504
3505
3506010001,10,3.FMT,00000,5.FS,5.FD,001100:COP1:32::ROUND.W.fmt
3507"round.w.%s<FMT> f<FD>, f<FS>"
3508*mipsII:
3509*mipsIII:
3510*mipsIV:
3511*vr4100:
3512*vr5000:
3513*r3900:
3514{
3515 unsigned32 instruction = instruction_0;
3516 int destreg = ((instruction >> 6) & 0x0000001F);
3517 int fs = ((instruction >> 11) & 0x0000001F);
3518 int format = ((instruction >> 21) & 0x00000007);
3519 {
3520 if ((format != fmt_single) && (format != fmt_double))
3521 SignalException(ReservedInstruction,instruction);
3522 else
3523 StoreFPR(destreg,fmt_word,Convert(FP_RM_NEAREST,ValueFPR(fs,format),format,fmt_word));
3524 }
3525}
3526
3527
3528010001,10,3.FMT,00000,5.FS,5.FD,010110:COP1:32::RSQRT.fmt
3529*mipsIV:
3530"rsqrt.%s<FMT> f<FD>, f<FS>"
3531*vr5000:
3532{
3533 unsigned32 instruction = instruction_0;
3534 int destreg = ((instruction >> 6) & 0x0000001F);
3535 int fs = ((instruction >> 11) & 0x0000001F);
3536 int format = ((instruction >> 21) & 0x00000007);
3537 {
3538 if ((format != fmt_single) && (format != fmt_double))
3539 SignalException(ReservedInstruction,instruction);
3540 else
3541 StoreFPR(destreg,format,Recip(SquareRoot(ValueFPR(fs,format),format),format));
3542 }
3543}
3544
3545
3546111101,5.BASE,5.FT,16.OFFSET:COP1:64::SDC1
3547"sdc1 f<FT>, <OFFSET>(r<BASE>)"
e514a9d6 3548*mipsI:
c906108c
SS		 3549*mipsII:
3550*mipsIII:
3551*mipsIV:
3552*vr4100:
3553*vr5000:
3554*r3900:
3555{
3556 do_store (SD_, AccessLength_DOUBLEWORD, GPR[BASE], EXTEND16 (OFFSET), COP_SD (1, FT));
3557}
3558
3559
3560010011,5.BASE,5.INDEX,5.FS,00000001001:COP1X:64::SDXC1
3561"ldxc1 f<FS>, r<INDEX>(r<BASE>)"
3562*mipsIV:
3563*vr5000:
3564{
3565 do_store (SD_, AccessLength_DOUBLEWORD, GPR[BASE], GPR[INDEX], COP_SD (1, FS));
3566}
3567
3568
3569010001,10,3.FMT,00000,5.FS,5.FD,000100:COP1:32::SQRT.fmt
3570"sqrt.%s<FMT> f<FD>, f<FS>"
3571*mipsII:
3572*mipsIII:
3573*mipsIV:
3574*vr4100:
3575*vr5000:
3576*r3900:
3577{
3578 unsigned32 instruction = instruction_0;
3579 int destreg = ((instruction >> 6) & 0x0000001F);
3580 int fs = ((instruction >> 11) & 0x0000001F);
3581 int format = ((instruction >> 21) & 0x00000007);
3582 {
3583 if ((format != fmt_single) && (format != fmt_double))
3584 SignalException(ReservedInstruction,instruction);
3585 else
3586 StoreFPR(destreg,format,(SquareRoot(ValueFPR(fs,format),format)));
3587 }
3588}
3589
3590
3591010001,10,3.FMT,5.FT,5.FS,5.FD,000001:COP1:32::SUB.fmt
3592"sub.%s<FMT> f<FD>, f<FS>, f<FT>"
3593*mipsI,mipsII,mipsIII,mipsIV:
3594*vr4100:
3595*vr5000:
3596*r3900:
3597{
3598 unsigned32 instruction = instruction_0;
3599 int destreg = ((instruction >> 6) & 0x0000001F);
3600 int fs = ((instruction >> 11) & 0x0000001F);
3601 int ft = ((instruction >> 16) & 0x0000001F);
3602 int format = ((instruction >> 21) & 0x00000007);
3603 {
3604 if ((format != fmt_single) && (format != fmt_double))
3605 SignalException(ReservedInstruction,instruction);
3606 else
3607 StoreFPR(destreg,format,Sub(ValueFPR(fs,format),ValueFPR(ft,format),format));
3608 }
3609}
3610
3611
3612
3613111001,5.BASE,5.FT,16.OFFSET:COP1:32::SWC1
3614"swc1 f<FT>, <OFFSET>(r<BASE>)"
3615*mipsI,mipsII,mipsIII,mipsIV:
3616*vr4100:
3617*vr5000:
3618*r3900:
3619{
3620 unsigned32 instruction = instruction_0;
3621 signed_word offset = EXTEND16 (OFFSET);
3622 int destreg UNUSED = ((instruction >> 16) & 0x0000001F);
3623 signed_word op1 UNUSED = GPR[((instruction >> 21) & 0x0000001F)];
3624 {
3625 address_word vaddr = ((uword64)op1 + offset);
3626 address_word paddr;
3627 int uncached;
3628 if ((vaddr & 3) != 0)
3629 {
3630 SIM_CORE_SIGNAL (SD, CPU, cia, read_map, AccessLength_WORD+1, vaddr, write_transfer, sim_core_unaligned_signal);
3631 }
3632 else
3633 {
3634 if (AddressTranslation(vaddr,isDATA,isSTORE,&paddr,&uncached,isTARGET,isREAL))
3635 {
3636 uword64 memval = 0;
3637 uword64 memval1 = 0;
3638 uword64 mask = (WITH_TARGET_WORD_BITSIZE == 64 ? 0x7 : 0x3);
3639 address_word reverseendian = (ReverseEndian ?(mask ^ AccessLength_WORD): 0);
3640 address_word bigendiancpu = (BigEndianCPU ?(mask ^ AccessLength_WORD): 0);
3641 unsigned int byte;
3642 paddr = ((paddr & ~mask) | ((paddr & mask) ^ reverseendian));
3643 byte = ((vaddr & mask) ^ bigendiancpu);
3644 memval = (((uword64)COP_SW(((instruction >> 26) & 0x3),destreg)) << (8 * byte));
3645 StoreMemory(uncached,AccessLength_WORD,memval,memval1,paddr,vaddr,isREAL);
3646 }
3647 }
3648 }
3649}
3650
3651
3652010011,5.BASE,5.INDEX,5.FS,00000,001000:COP1X:32::SWXC1
3653"swxc1 f<FS>, r<INDEX>(r<BASE>)"
3654*mipsIV:
3655*vr5000:
3656{
3657 unsigned32 instruction = instruction_0;
3658 int fs = ((instruction >> 11) & 0x0000001F);
3659 signed_word op2 = GPR[((instruction >> 16) & 0x0000001F)];
3660 signed_word op1 = GPR[((instruction >> 21) & 0x0000001F)];
3661 {
3662 address_word vaddr = ((unsigned64)op1 + op2);
3663 address_word paddr;
3664 int uncached;
3665 if ((vaddr & 3) != 0)
3666 {
3667 SIM_CORE_SIGNAL (SD, CPU, cia, read_map, 4, vaddr, write_transfer, sim_core_unaligned_signal);
3668 }
3669 else
3670 {
3671 if (AddressTranslation(vaddr,isDATA,isSTORE,&paddr,&uncached,isTARGET,isREAL))
3672 {
3673 unsigned64 memval = 0;
3674 unsigned64 memval1 = 0;
3675 unsigned64 mask = 0x7;
3676 unsigned int byte;
3677 paddr = ((paddr & ~mask) | ((paddr & mask) ^ (ReverseEndian << 2)));
3678 byte = ((vaddr & mask) ^ (BigEndianCPU << 2));
3679 memval = (((unsigned64)COP_SW(1,fs)) << (8 * byte));
3680 {
3681 StoreMemory(uncached,AccessLength_WORD,memval,memval1,paddr,vaddr,isREAL);
3682 }
3683 }
3684 }
3685 }
3686}
3687
3688
3689010001,10,3.FMT,00000,5.FS,5.FD,001001:COP1:64::TRUNC.L.fmt
3690"trunc.l.%s<FMT> f<FD>, f<FS>"
3691*mipsIII:
3692*mipsIV:
3693*vr4100:
3694*vr5000:
3695*r3900:
3696{
3697 unsigned32 instruction = instruction_0;
3698 int destreg = ((instruction >> 6) & 0x0000001F);
3699 int fs = ((instruction >> 11) & 0x0000001F);
3700 int format = ((instruction >> 21) & 0x00000007);
3701 {
3702 if ((format != fmt_single) && (format != fmt_double))
3703 SignalException(ReservedInstruction,instruction);
3704 else
3705 StoreFPR(destreg,fmt_long,Convert(FP_RM_TOZERO,ValueFPR(fs,format),format,fmt_long));
3706 }
3707}
3708
3709
3710010001,10,3.FMT,00000,5.FS,5.FD,001101:COP1:32::TRUNC.W
3711"trunc.w.%s<FMT> f<FD>, f<FS>"
3712*mipsII:
3713*mipsIII:
3714*mipsIV:
3715*vr4100:
3716*vr5000:
3717*r3900:
3718{
3719 unsigned32 instruction = instruction_0;
3720 int destreg = ((instruction >> 6) & 0x0000001F);
3721 int fs = ((instruction >> 11) & 0x0000001F);
3722 int format = ((instruction >> 21) & 0x00000007);
3723 {
3724 if ((format != fmt_single) && (format != fmt_double))
3725 SignalException(ReservedInstruction,instruction);
3726 else
3727 StoreFPR(destreg,fmt_word,Convert(FP_RM_TOZERO,ValueFPR(fs,format),format,fmt_word));
3728 }
3729}
3730
3731\f
3732//
3733// MIPS Architecture:
3734//
3735// System Control Instruction Set (COP0)
3736//
3737
3738
3739010000,01000,00000,16.OFFSET:COP0:32::BC0F
3740"bc0f <OFFSET>"
3741*mipsI,mipsII,mipsIII,mipsIV:
3742*vr4100:
3743*vr5000:
3744
7a292a7a
SS		 3745010000,01000,00000,16.OFFSET:COP0:32::BC0F
3746"bc0f <OFFSET>"
3747// stub needed for eCos as tx39 hardware bug workaround
3748*r3900:
3749{
3750 /* do nothing */
3751}
3752
c906108c
SS		 3753
3754010000,01000,00010,16.OFFSET:COP0:32::BC0FL
3755"bc0fl <OFFSET>"
3756*mipsI,mipsII,mipsIII,mipsIV:
3757*vr4100:
3758*vr5000:
3759
3760
3761010000,01000,00001,16.OFFSET:COP0:32::BC0T
3762"bc0t <OFFSET>"
3763*mipsI,mipsII,mipsIII,mipsIV:
3764*vr4100:
3765
3766
3767010000,01000,00011,16.OFFSET:COP0:32::BC0TL
3768"bc0tl <OFFSET>"
3769*mipsI,mipsII,mipsIII,mipsIV:
3770*vr4100:
3771*vr5000:
3772
3773
3774101111,5.BASE,5.OP,16.OFFSET:NORMAL:32::CACHE
3775*mipsIII:
3776*mipsIV:
3777*vr4100:
3778*vr5000:
3779*r3900:
3780{
3781 unsigned32 instruction = instruction_0;
3782 signed_word offset = SIGNEXTEND((signed_word)((instruction >> 0) & 0x0000FFFF),16);
3783 int hint = ((instruction >> 16) & 0x0000001F);
3784 signed_word op1 = GPR[((instruction >> 21) & 0x0000001F)];
3785 {
3786 address_word vaddr = (op1 + offset);
3787 address_word paddr;
3788 int uncached;
3789 if (AddressTranslation(vaddr,isDATA,isLOAD,&paddr,&uncached,isTARGET,isREAL))
3790 CacheOp(hint,vaddr,paddr,instruction);
3791 }
3792}
3793
3794
3795010000,10000,000000000000000,111001:COP0:32::DI
3796"di"
3797*mipsI,mipsII,mipsIII,mipsIV:
3798*vr4100:
3799*vr5000:
3800
3801
9846de1b
JM		 3802010000,00001,5.RT,5.RD,000,0000,0000:COP0:64::DMFC0
3803"dmfc0 r<RT>, r<RD>"
3804*mipsIII,mipsIV:
3805{
3806 DecodeCoproc (instruction_0);
3807}
3808
3809
3810010000,00101,5.RT,5.RD,000,0000,0000:COP0:64::DMTC0
3811"dmtc0 r<RT>, r<RD>"
3812*mipsIII,mipsIV:
3813{
3814 DecodeCoproc (instruction_0);
3815}
3816
3817
c906108c
SS		 3818010000,10000,000000000000000,111000:COP0:32::EI
3819"ei"
3820*mipsI,mipsII,mipsIII,mipsIV:
3821*vr4100:
3822*vr5000:
3823
3824
3825010000,10000,000000000000000,011000:COP0:32::ERET
3826"eret"
3827*mipsIII:
3828*mipsIV:
3829*vr4100:
3830*vr5000:
3831{
3832 if (SR & status_ERL)
3833 {
3834 /* Oops, not yet available */
3835 sim_io_printf (SD, "Warning: ERET when SR[ERL] set not supported");
3836 NIA = EPC;
3837 SR &= ~status_ERL;
3838 }
3839 else
3840 {
3841 NIA = EPC;
3842 SR &= ~status_EXL;
3843 }
3844}
3845
3846
3847010000,00000,5.RT,5.RD,00000,6.REGX:COP0:32::MFC0
3848"mfc0 r<RT>, r<RD> # <REGX>"
3849*mipsI,mipsII,mipsIII,mipsIV:
3850*r3900:
3851*vr4100:
3852*vr5000:
3853{
3854 TRACE_ALU_INPUT0 ();
3855 DecodeCoproc (instruction_0);
3856 TRACE_ALU_RESULT (GPR[RT]);
3857}
3858
3859010000,00100,5.RT,5.RD,00000,6.REGX:COP0:32::MTC0
3860"mtc0 r<RT>, r<RD> # <REGX>"
3861*mipsI,mipsII,mipsIII,mipsIV:
3862*r3900:
3863*vr4100:
3864*vr5000:
3865{
3866 DecodeCoproc (instruction_0);
3867}
3868
3869
3870010000,10000,000000000000000,010000:COP0:32::RFE
3871"rfe"
3872*mipsI,mipsII,mipsIII,mipsIV:
3873*r3900:
3874*vr4100:
3875*vr5000:
3876{
3877 DecodeCoproc (instruction_0);
3878}
3879
3880
38810100,ZZ!0!1!3,5.COP_FUN0!8,5.COP_FUN1,16.COP_FUN2:NORMAL:32::COPz
3882"cop<ZZ> <COP_FUN0><COP_FUN1><COP_FUN2>"
3883*mipsI,mipsII,mipsIII,mipsIV:
3884*vr4100:
3885*r3900:
3886{
3887 DecodeCoproc (instruction_0);
3888}
3889
3890
3891
3892010000,10000,000000000000000,001000:COP0:32::TLBP
3893"tlbp"
3894*mipsI,mipsII,mipsIII,mipsIV:
3895*vr4100:
3896*vr5000:
3897
3898
3899010000,10000,000000000000000,000001:COP0:32::TLBR
3900"tlbr"
3901*mipsI,mipsII,mipsIII,mipsIV:
3902*vr4100:
3903*vr5000:
3904
3905
3906010000,10000,000000000000000,000010:COP0:32::TLBWI
3907"tlbwi"
3908*mipsI,mipsII,mipsIII,mipsIV:
3909*vr4100:
3910*vr5000:
3911
3912
3913010000,10000,000000000000000,000110:COP0:32::TLBWR
3914"tlbwr"
3915*mipsI,mipsII,mipsIII,mipsIV:
3916*vr4100:
3917*vr5000:
3918
3919\f
3920:include:::m16.igen
3921:include:::tx.igen
3922:include:::vr.igen
3923\f
GDB Binutils - Deliverables
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