1 //===----------------------------------------------------------------------===//
2 // MicroMIPS Base Classes
3 //===----------------------------------------------------------------------===//
6 // Base class for MicroMips instructions.
7 // This class does not depend on the instruction size.
9 class MicroMipsInstBase<dag outs, dag ins, string asmstr, list<dag> pattern,
10 InstrItinClass itin, Format f> : Instruction
12 let Namespace = "Mips";
13 let DecoderNamespace = "MicroMips";
15 let OutOperandList = outs;
16 let InOperandList = ins;
18 let AsmString = asmstr;
19 let Pattern = pattern;
22 let Predicates = [InMicroMips];
28 // Base class for MicroMIPS 16-bit instructions.
30 class MicroMipsInst16<dag outs, dag ins, string asmstr, list<dag> pattern,
31 InstrItinClass itin, Format f> :
32 MicroMipsInstBase<outs, ins, asmstr, pattern, itin, f>
36 field bits<16> SoftFail = 0;
40 //===----------------------------------------------------------------------===//
41 // MicroMIPS 16-bit Instruction Formats
42 //===----------------------------------------------------------------------===//
44 class ARITH_FM_MM16<bit funct> {
51 let Inst{15-10} = 0x01;
58 class ANDI_FM_MM16<bits<6> funct> {
65 let Inst{15-10} = funct;
71 class LOGIC_FM_MM16<bits<4> funct> {
77 let Inst{15-10} = 0x11;
78 let Inst{9-6} = funct;
83 class SHIFT_FM_MM16<bits<1> funct> {
90 let Inst{15-10} = 0x09;
93 let Inst{3-1} = shamt;
97 class ADDIUR2_FM_MM16 {
104 let Inst{15-10} = 0x1b;
111 class LOAD_STORE_FM_MM16<bits<6> op> {
117 let Inst{15-10} = op;
119 let Inst{6-4} = addr{6-4};
120 let Inst{3-0} = addr{3-0};
123 class LOAD_STORE_SP_FM_MM16<bits<6> op> {
129 let Inst{15-10} = op;
131 let Inst{4-0} = offset;
134 class LOAD_GP_FM_MM16<bits<6> op> {
140 let Inst{15-10} = op;
142 let Inst{6-0} = offset;
145 class ADDIUS5_FM_MM16 {
151 let Inst{15-10} = 0x13;
157 class ADDIUSP_FM_MM16 {
162 let Inst{15-10} = 0x13;
167 class MOVE_FM_MM16<bits<6> funct> {
173 let Inst{15-10} = funct;
184 let Inst{15-10} = 0x3b;
189 class JALR_FM_MM16<bits<5> op> {
194 let Inst{15-10} = 0x11;
199 class MFHILO_FM_MM16<bits<5> funct> {
204 let Inst{15-10} = 0x11;
205 let Inst{9-5} = funct;
209 class JRADDIUSP_FM_MM16<bits<5> op> {
215 let Inst{15-10} = 0x11;
220 class ADDIUR1SP_FM_MM16 {
226 let Inst{15-10} = 0x1b;
232 class BRKSDBBP16_FM_MM<bits<6> op> {
236 let Inst{15-10} = 0x11;
238 let Inst{3-0} = code_;
241 class BEQNEZ_FM_MM16<bits<6> op> {
247 let Inst{15-10} = op;
249 let Inst{6-0} = offset;
257 let Inst{15-10} = 0x33;
258 let Inst{9-0} = offset;
261 class MOVEP_FM_MM16 {
268 let Inst{15-10} = 0x21;
269 let Inst{9-7} = dst_regs;
275 //===----------------------------------------------------------------------===//
276 // MicroMIPS 32-bit Instruction Formats
277 //===----------------------------------------------------------------------===//
280 string Arch = "micromips";
281 list<dag> Pattern = [];
284 class ADD_FM_MM<bits<6> op, bits<10> funct> : MMArch {
291 let Inst{31-26} = op;
292 let Inst{25-21} = rt;
293 let Inst{20-16} = rs;
294 let Inst{15-11} = rd;
296 let Inst{9-0} = funct;
299 class ADDI_FM_MM<bits<6> op> : MMArch {
306 let Inst{31-26} = op;
307 let Inst{25-21} = rt;
308 let Inst{20-16} = rs;
309 let Inst{15-0} = imm16;
312 class SLTI_FM_MM<bits<6> op> : MMArch {
319 let Inst{31-26} = op;
320 let Inst{25-21} = rt;
321 let Inst{20-16} = rs;
322 let Inst{15-0} = imm16;
325 class LUI_FM_MM : MMArch {
331 let Inst{31-26} = 0x10;
332 let Inst{25-21} = 0xd;
333 let Inst{20-16} = rt;
334 let Inst{15-0} = imm16;
337 class MULT_FM_MM<bits<10> funct> : MMArch {
343 let Inst{31-26} = 0x00;
344 let Inst{25-21} = rt;
345 let Inst{20-16} = rs;
346 let Inst{15-6} = funct;
347 let Inst{5-0} = 0x3c;
350 class SRA_FM_MM<bits<10> funct, bit rotate> : MMArch {
358 let Inst{25-21} = rd;
359 let Inst{20-16} = rt;
360 let Inst{15-11} = shamt;
361 let Inst{10} = rotate;
362 let Inst{9-0} = funct;
365 class SRLV_FM_MM<bits<10> funct, bit rotate> : MMArch {
373 let Inst{25-21} = rt;
374 let Inst{20-16} = rs;
375 let Inst{15-11} = rd;
376 let Inst{10} = rotate;
377 let Inst{9-0} = funct;
380 class LW_FM_MM<bits<6> op> : MMArch {
386 let Inst{31-26} = op;
387 let Inst{25-21} = rt;
388 let Inst{20-16} = addr{20-16};
389 let Inst{15-0} = addr{15-0};
392 class POOL32C_LHUE_FM_MM<bits<6> op, bits<4> fmt, bits<3> funct> : MMArch {
395 bits<5> base = addr{20-16};
396 bits<9> offset = addr{8-0};
400 let Inst{31-26} = op;
401 let Inst{25-21} = rt;
402 let Inst{20-16} = base;
403 let Inst{15-12} = fmt;
404 let Inst{11-9} = funct;
405 let Inst{8-0} = offset;
408 class LWL_FM_MM<bits<4> funct> {
414 let Inst{31-26} = 0x18;
415 let Inst{25-21} = rt;
416 let Inst{20-16} = addr{20-16};
417 let Inst{15-12} = funct;
418 let Inst{11-0} = addr{11-0};
421 class CMov_F_I_FM_MM<bits<7> func> : MMArch {
428 let Inst{31-26} = 0x15;
429 let Inst{25-21} = rd;
430 let Inst{20-16} = rs;
431 let Inst{15-13} = fcc;
432 let Inst{12-6} = func;
433 let Inst{5-0} = 0x3b;
436 class MTLO_FM_MM<bits<10> funct> : MMArch {
441 let Inst{31-26} = 0x00;
442 let Inst{25-21} = 0x00;
443 let Inst{20-16} = rs;
444 let Inst{15-6} = funct;
445 let Inst{5-0} = 0x3c;
448 class MFLO_FM_MM<bits<10> funct> : MMArch {
453 let Inst{31-26} = 0x00;
454 let Inst{25-21} = 0x00;
455 let Inst{20-16} = rd;
456 let Inst{15-6} = funct;
457 let Inst{5-0} = 0x3c;
460 class CLO_FM_MM<bits<10> funct> : MMArch {
466 let Inst{31-26} = 0x00;
467 let Inst{25-21} = rd;
468 let Inst{20-16} = rs;
469 let Inst{15-6} = funct;
470 let Inst{5-0} = 0x3c;
473 class SEB_FM_MM<bits<10> funct> : MMArch {
479 let Inst{31-26} = 0x00;
480 let Inst{25-21} = rd;
481 let Inst{20-16} = rt;
482 let Inst{15-6} = funct;
483 let Inst{5-0} = 0x3c;
486 class EXT_FM_MM<bits<6> funct> : MMArch {
494 let Inst{31-26} = 0x00;
495 let Inst{25-21} = rt;
496 let Inst{20-16} = rs;
497 let Inst{15-11} = size;
498 let Inst{10-6} = pos;
499 let Inst{5-0} = funct;
502 class J_FM_MM<bits<6> op> : MMArch {
507 let Inst{31-26} = op;
508 let Inst{25-0} = target;
511 class JR_FM_MM<bits<8> funct> : MMArch {
516 let Inst{31-21} = 0x00;
517 let Inst{20-16} = rs;
518 let Inst{15-14} = 0x0;
519 let Inst{13-6} = funct;
520 let Inst{5-0} = 0x3c;
523 class JALR_FM_MM<bits<10> funct> {
529 let Inst{31-26} = 0x00;
530 let Inst{25-21} = rd;
531 let Inst{20-16} = rs;
532 let Inst{15-6} = funct;
533 let Inst{5-0} = 0x3c;
536 class BEQ_FM_MM<bits<6> op> : MMArch {
543 let Inst{31-26} = op;
544 let Inst{25-21} = rt;
545 let Inst{20-16} = rs;
546 let Inst{15-0} = offset;
549 class BGEZ_FM_MM<bits<5> funct> : MMArch {
555 let Inst{31-26} = 0x10;
556 let Inst{25-21} = funct;
557 let Inst{20-16} = rs;
558 let Inst{15-0} = offset;
561 class BGEZAL_FM_MM<bits<5> funct> : MMArch {
567 let Inst{31-26} = 0x10;
568 let Inst{25-21} = funct;
569 let Inst{20-16} = rs;
570 let Inst{15-0} = offset;
573 class SYNC_FM_MM : MMArch {
578 let Inst{31-26} = 0x00;
579 let Inst{25-21} = 0x0;
580 let Inst{20-16} = stype;
581 let Inst{15-6} = 0x1ad;
582 let Inst{5-0} = 0x3c;
585 class BRK_FM_MM : MMArch {
589 let Inst{31-26} = 0x0;
590 let Inst{25-16} = code_1;
591 let Inst{15-6} = code_2;
592 let Inst{5-0} = 0x07;
595 class SYS_FM_MM : MMArch {
598 let Inst{31-26} = 0x0;
599 let Inst{25-16} = code_;
600 let Inst{15-6} = 0x22d;
601 let Inst{5-0} = 0x3c;
608 let Inst{31-26} = 0x00;
609 let Inst{25-16} = code_;
610 let Inst{15-6} = 0x24d;
611 let Inst{5-0} = 0x3c;
614 class ER_FM_MM<bits<10> funct> : MMArch {
617 let Inst{31-26} = 0x00;
618 let Inst{25-16} = 0x00;
619 let Inst{15-6} = funct;
620 let Inst{5-0} = 0x3c;
623 class EI_FM_MM<bits<10> funct> : MMArch {
627 let Inst{31-26} = 0x00;
628 let Inst{25-21} = 0x00;
629 let Inst{20-16} = rt;
630 let Inst{15-6} = funct;
631 let Inst{5-0} = 0x3c;
634 class TEQ_FM_MM<bits<6> funct> : MMArch {
641 let Inst{31-26} = 0x00;
642 let Inst{25-21} = rt;
643 let Inst{20-16} = rs;
644 let Inst{15-12} = code_;
645 let Inst{11-6} = funct;
646 let Inst{5-0} = 0x3c;
649 class TEQI_FM_MM<bits<5> funct> : MMArch {
655 let Inst{31-26} = 0x10;
656 let Inst{25-21} = funct;
657 let Inst{20-16} = rs;
658 let Inst{15-0} = imm16;
661 class LL_FM_MM<bits<4> funct> {
667 let Inst{31-26} = 0x18;
668 let Inst{25-21} = rt;
669 let Inst{20-16} = addr{20-16};
670 let Inst{15-12} = funct;
671 let Inst{11-0} = addr{11-0};
674 class ADDS_FM_MM<bits<2> fmt, bits<8> funct> : MMArch {
681 let Inst{31-26} = 0x15;
682 let Inst{25-21} = ft;
683 let Inst{20-16} = fs;
684 let Inst{15-11} = fd;
687 let Inst{7-0} = funct;
689 list<dag> Pattern = [];
692 class LWXC1_FM_MM<bits<9> funct> : MMArch {
699 let Inst{31-26} = 0x15;
700 let Inst{25-21} = index;
701 let Inst{20-16} = base;
702 let Inst{15-11} = fd;
703 let Inst{10-9} = 0x0;
704 let Inst{8-0} = funct;
707 class SWXC1_FM_MM<bits<9> funct> : MMArch {
714 let Inst{31-26} = 0x15;
715 let Inst{25-21} = index;
716 let Inst{20-16} = base;
717 let Inst{15-11} = fs;
718 let Inst{10-9} = 0x0;
719 let Inst{8-0} = funct;
722 class CEQS_FM_MM<bits<2> fmt> : MMArch {
729 let Inst{31-26} = 0x15;
730 let Inst{25-21} = ft;
731 let Inst{20-16} = fs;
732 let Inst{15-13} = 0x0; // cc
734 let Inst{11-10} = fmt;
735 let Inst{9-6} = cond;
736 let Inst{5-0} = 0x3c;
739 class BC1F_FM_MM<bits<5> tf> : MMArch {
744 let Inst{31-26} = 0x10;
745 let Inst{25-21} = tf;
746 let Inst{20-18} = 0x0; // cc
747 let Inst{17-16} = 0x0;
748 let Inst{15-0} = offset;
751 class ROUND_W_FM_MM<bits<1> fmt, bits<8> funct> : MMArch {
757 let Inst{31-26} = 0x15;
758 let Inst{25-21} = fd;
759 let Inst{20-16} = fs;
762 let Inst{13-6} = funct;
763 let Inst{5-0} = 0x3b;
766 class ABS_FM_MM<bits<2> fmt, bits<7> funct> : MMArch {
772 let Inst{31-26} = 0x15;
773 let Inst{25-21} = fd;
774 let Inst{20-16} = fs;
776 let Inst{14-13} = fmt;
777 let Inst{12-6} = funct;
778 let Inst{5-0} = 0x3b;
781 class CMov_F_F_FM_MM<bits<9> func, bits<2> fmt> : MMArch {
787 let Inst{31-26} = 0x15;
788 let Inst{25-21} = fd;
789 let Inst{20-16} = fs;
790 let Inst{15-13} = 0x0; //cc
791 let Inst{12-11} = 0x0;
792 let Inst{10-9} = fmt;
793 let Inst{8-0} = func;
796 class CMov_I_F_FM_MM<bits<8> funct, bits<2> fmt> : MMArch {
803 let Inst{31-26} = 0x15;
804 let Inst{25-21} = rt;
805 let Inst{20-16} = fs;
806 let Inst{15-11} = fd;
808 let Inst{7-0} = funct;
811 class MFC1_FM_MM<bits<8> funct> : MMArch {
817 let Inst{31-26} = 0x15;
818 let Inst{25-21} = rt;
819 let Inst{20-16} = fs;
820 let Inst{15-14} = 0x0;
821 let Inst{13-6} = funct;
822 let Inst{5-0} = 0x3b;
825 class MADDS_FM_MM<bits<6> funct>: MMArch {
833 let Inst{31-26} = 0x15;
834 let Inst{25-21} = ft;
835 let Inst{20-16} = fs;
836 let Inst{15-11} = fd;
838 let Inst{5-0} = funct;
841 class COMPACT_BRANCH_FM_MM<bits<5> funct> {
847 let Inst{31-26} = 0x10;
848 let Inst{25-21} = funct;
849 let Inst{20-16} = rs;
850 let Inst{15-0} = offset;
853 class COP0_TLB_FM_MM<bits<10> op> : MMArch {
856 let Inst{31-26} = 0x0;
857 let Inst{25-16} = 0x0;
859 let Inst{5-0} = 0x3c;
862 class SDBBP_FM_MM : MMArch {
867 let Inst{31-26} = 0x0;
868 let Inst{25-16} = code_;
869 let Inst{15-6} = 0x36d;
870 let Inst{5-0} = 0x3c;
873 class RDHWR_FM_MM : MMArch {
879 let Inst{31-26} = 0x0;
880 let Inst{25-21} = rt;
881 let Inst{20-16} = rd;
882 let Inst{15-6} = 0x1ac;
883 let Inst{5-0} = 0x3c;
886 class LWXS_FM_MM<bits<10> funct> {
893 let Inst{31-26} = 0x0;
894 let Inst{25-21} = index;
895 let Inst{20-16} = base;
896 let Inst{15-11} = rd;
898 let Inst{9-0} = funct;
901 class LWM_FM_MM<bits<4> funct> : MMArch {
907 let Inst{31-26} = 0x8;
908 let Inst{25-21} = rt;
909 let Inst{20-16} = addr{20-16};
910 let Inst{15-12} = funct;
911 let Inst{11-0} = addr{11-0};
914 class LWM_FM_MM16<bits<4> funct> : MMArch {
920 let Inst{15-10} = 0x11;
921 let Inst{9-6} = funct;
923 let Inst{3-0} = addr;
926 class CACHE_PREF_FM_MM<bits<6> op, bits<4> funct> : MMArch {
929 bits<5> base = addr{20-16};
930 bits<12> offset = addr{11-0};
934 let Inst{31-26} = op;
935 let Inst{25-21} = hint;
936 let Inst{20-16} = base;
937 let Inst{15-12} = funct;
938 let Inst{11-0} = offset;
941 class CACHE_PREFE_FM_MM<bits<6> op, bits<3> funct> : MMArch {
944 bits<5> base = addr{20-16};
945 bits<9> offset = addr{8-0};
949 let Inst{31-26} = op;
950 let Inst{25-21} = hint;
951 let Inst{20-16} = base;
952 let Inst{15-12} = 0xA;
953 let Inst{11-9} = funct;
954 let Inst{8-0} = offset;
957 class POOL32F_PREFX_FM_MM<bits<6> op, bits<9> funct> : MMArch {
964 let Inst{31-26} = op;
965 let Inst{25-21} = index;
966 let Inst{20-16} = base;
967 let Inst{15-11} = hint;
968 let Inst{10-9} = 0x0;
969 let Inst{8-0} = funct;
972 class BARRIER_FM_MM<bits<5> op> : MMArch {
975 let Inst{31-26} = 0x0;
976 let Inst{25-21} = 0x0;
977 let Inst{20-16} = 0x0;
978 let Inst{15-11} = op;
979 let Inst{10-6} = 0x0;
983 class ADDIUPC_FM_MM {
989 let Inst{31-26} = 0x1e;
990 let Inst{25-23} = rs;
991 let Inst{22-0} = imm;