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 LOGIC_FM_MM16<bits<4> funct> {
64 let Inst{15-10} = 0x11;
65 let Inst{9-6} = funct;
70 class SHIFT_FM_MM16<bits<1> funct> {
77 let Inst{15-10} = 0x09;
80 let Inst{3-1} = shamt;
84 class ADDIUR2_FM_MM16 {
91 let Inst{15-10} = 0x1b;
98 class ADDIUS5_FM_MM16 {
104 let Inst{15-10} = 0x13;
110 class ADDIUSP_FM_MM16 {
115 let Inst{15-10} = 0x13;
120 class MOVE_FM_MM16<bits<6> funct> {
126 let Inst{15-10} = funct;
137 let Inst{15-10} = 0x3b;
142 class JALR_FM_MM16<bits<5> op> {
147 let Inst{15-10} = 0x11;
152 class MFHILO_FM_MM16<bits<5> funct> {
157 let Inst{15-10} = 0x11;
158 let Inst{9-5} = funct;
162 class JRADDIUSP_FM_MM16<bits<5> op> {
168 let Inst{15-10} = 0x11;
173 //===----------------------------------------------------------------------===//
174 // MicroMIPS 32-bit Instruction Formats
175 //===----------------------------------------------------------------------===//
178 string Arch = "micromips";
179 list<dag> Pattern = [];
182 class ADD_FM_MM<bits<6> op, bits<10> funct> : MMArch {
189 let Inst{31-26} = op;
190 let Inst{25-21} = rt;
191 let Inst{20-16} = rs;
192 let Inst{15-11} = rd;
194 let Inst{9-0} = funct;
197 class ADDI_FM_MM<bits<6> op> : MMArch {
204 let Inst{31-26} = op;
205 let Inst{25-21} = rt;
206 let Inst{20-16} = rs;
207 let Inst{15-0} = imm16;
210 class SLTI_FM_MM<bits<6> op> : MMArch {
217 let Inst{31-26} = op;
218 let Inst{25-21} = rt;
219 let Inst{20-16} = rs;
220 let Inst{15-0} = imm16;
223 class LUI_FM_MM : MMArch {
229 let Inst{31-26} = 0x10;
230 let Inst{25-21} = 0xd;
231 let Inst{20-16} = rt;
232 let Inst{15-0} = imm16;
235 class MULT_FM_MM<bits<10> funct> : MMArch {
241 let Inst{31-26} = 0x00;
242 let Inst{25-21} = rt;
243 let Inst{20-16} = rs;
244 let Inst{15-6} = funct;
245 let Inst{5-0} = 0x3c;
248 class SRA_FM_MM<bits<10> funct, bit rotate> : MMArch {
256 let Inst{25-21} = rd;
257 let Inst{20-16} = rt;
258 let Inst{15-11} = shamt;
259 let Inst{10} = rotate;
260 let Inst{9-0} = funct;
263 class SRLV_FM_MM<bits<10> funct, bit rotate> : MMArch {
271 let Inst{25-21} = rt;
272 let Inst{20-16} = rs;
273 let Inst{15-11} = rd;
274 let Inst{10} = rotate;
275 let Inst{9-0} = funct;
278 class LW_FM_MM<bits<6> op> : MMArch {
284 let Inst{31-26} = op;
285 let Inst{25-21} = rt;
286 let Inst{20-16} = addr{20-16};
287 let Inst{15-0} = addr{15-0};
290 class LWL_FM_MM<bits<4> funct> {
296 let Inst{31-26} = 0x18;
297 let Inst{25-21} = rt;
298 let Inst{20-16} = addr{20-16};
299 let Inst{15-12} = funct;
300 let Inst{11-0} = addr{11-0};
303 class CMov_F_I_FM_MM<bits<7> func> : MMArch {
310 let Inst{31-26} = 0x15;
311 let Inst{25-21} = rd;
312 let Inst{20-16} = rs;
313 let Inst{15-13} = fcc;
314 let Inst{12-6} = func;
315 let Inst{5-0} = 0x3b;
318 class MTLO_FM_MM<bits<10> funct> : MMArch {
323 let Inst{31-26} = 0x00;
324 let Inst{25-21} = 0x00;
325 let Inst{20-16} = rs;
326 let Inst{15-6} = funct;
327 let Inst{5-0} = 0x3c;
330 class MFLO_FM_MM<bits<10> funct> : MMArch {
335 let Inst{31-26} = 0x00;
336 let Inst{25-21} = 0x00;
337 let Inst{20-16} = rd;
338 let Inst{15-6} = funct;
339 let Inst{5-0} = 0x3c;
342 class CLO_FM_MM<bits<10> funct> : MMArch {
348 let Inst{31-26} = 0x00;
349 let Inst{25-21} = rd;
350 let Inst{20-16} = rs;
351 let Inst{15-6} = funct;
352 let Inst{5-0} = 0x3c;
355 class SEB_FM_MM<bits<10> funct> : MMArch {
361 let Inst{31-26} = 0x00;
362 let Inst{25-21} = rd;
363 let Inst{20-16} = rt;
364 let Inst{15-6} = funct;
365 let Inst{5-0} = 0x3c;
368 class EXT_FM_MM<bits<6> funct> : MMArch {
376 let Inst{31-26} = 0x00;
377 let Inst{25-21} = rt;
378 let Inst{20-16} = rs;
379 let Inst{15-11} = size;
380 let Inst{10-6} = pos;
381 let Inst{5-0} = funct;
384 class J_FM_MM<bits<6> op> : MMArch {
389 let Inst{31-26} = op;
390 let Inst{25-0} = target;
393 class JR_FM_MM<bits<8> funct> : MMArch {
398 let Inst{31-21} = 0x00;
399 let Inst{20-16} = rs;
400 let Inst{15-14} = 0x0;
401 let Inst{13-6} = funct;
402 let Inst{5-0} = 0x3c;
405 class JALR_FM_MM<bits<10> funct> {
411 let Inst{31-26} = 0x00;
412 let Inst{25-21} = rd;
413 let Inst{20-16} = rs;
414 let Inst{15-6} = funct;
415 let Inst{5-0} = 0x3c;
418 class BEQ_FM_MM<bits<6> op> : MMArch {
425 let Inst{31-26} = op;
426 let Inst{25-21} = rt;
427 let Inst{20-16} = rs;
428 let Inst{15-0} = offset;
431 class BGEZ_FM_MM<bits<5> funct> : MMArch {
437 let Inst{31-26} = 0x10;
438 let Inst{25-21} = funct;
439 let Inst{20-16} = rs;
440 let Inst{15-0} = offset;
443 class BGEZAL_FM_MM<bits<5> funct> : MMArch {
449 let Inst{31-26} = 0x10;
450 let Inst{25-21} = funct;
451 let Inst{20-16} = rs;
452 let Inst{15-0} = offset;
455 class SYNC_FM_MM : MMArch {
460 let Inst{31-26} = 0x00;
461 let Inst{25-21} = 0x0;
462 let Inst{20-16} = stype;
463 let Inst{15-6} = 0x1ad;
464 let Inst{5-0} = 0x3c;
467 class BRK_FM_MM : MMArch {
471 let Inst{31-26} = 0x0;
472 let Inst{25-16} = code_1;
473 let Inst{15-6} = code_2;
474 let Inst{5-0} = 0x07;
477 class SYS_FM_MM : MMArch {
480 let Inst{31-26} = 0x0;
481 let Inst{25-16} = code_;
482 let Inst{15-6} = 0x22d;
483 let Inst{5-0} = 0x3c;
490 let Inst{31-26} = 0x00;
491 let Inst{25-16} = code_;
492 let Inst{15-6} = 0x24d;
493 let Inst{5-0} = 0x3c;
496 class ER_FM_MM<bits<10> funct> : MMArch {
499 let Inst{31-26} = 0x00;
500 let Inst{25-16} = 0x00;
501 let Inst{15-6} = funct;
502 let Inst{5-0} = 0x3c;
505 class EI_FM_MM<bits<10> funct> : MMArch {
509 let Inst{31-26} = 0x00;
510 let Inst{25-21} = 0x00;
511 let Inst{20-16} = rt;
512 let Inst{15-6} = funct;
513 let Inst{5-0} = 0x3c;
516 class TEQ_FM_MM<bits<6> funct> : MMArch {
523 let Inst{31-26} = 0x00;
524 let Inst{25-21} = rt;
525 let Inst{20-16} = rs;
526 let Inst{15-12} = code_;
527 let Inst{11-6} = funct;
528 let Inst{5-0} = 0x3c;
531 class TEQI_FM_MM<bits<5> funct> : MMArch {
537 let Inst{31-26} = 0x10;
538 let Inst{25-21} = funct;
539 let Inst{20-16} = rs;
540 let Inst{15-0} = imm16;
543 class LL_FM_MM<bits<4> funct> {
549 let Inst{31-26} = 0x18;
550 let Inst{25-21} = rt;
551 let Inst{20-16} = addr{20-16};
552 let Inst{15-12} = funct;
553 let Inst{11-0} = addr{11-0};
556 class ADDS_FM_MM<bits<2> fmt, bits<8> funct> : MMArch {
563 let Inst{31-26} = 0x15;
564 let Inst{25-21} = ft;
565 let Inst{20-16} = fs;
566 let Inst{15-11} = fd;
569 let Inst{7-0} = funct;
571 list<dag> Pattern = [];
574 class LWXC1_FM_MM<bits<9> funct> : MMArch {
581 let Inst{31-26} = 0x15;
582 let Inst{25-21} = index;
583 let Inst{20-16} = base;
584 let Inst{15-11} = fd;
585 let Inst{10-9} = 0x0;
586 let Inst{8-0} = funct;
589 class SWXC1_FM_MM<bits<9> funct> : MMArch {
596 let Inst{31-26} = 0x15;
597 let Inst{25-21} = index;
598 let Inst{20-16} = base;
599 let Inst{15-11} = fs;
600 let Inst{10-9} = 0x0;
601 let Inst{8-0} = funct;
604 class CEQS_FM_MM<bits<2> fmt> : MMArch {
611 let Inst{31-26} = 0x15;
612 let Inst{25-21} = ft;
613 let Inst{20-16} = fs;
614 let Inst{15-13} = 0x0; // cc
616 let Inst{11-10} = fmt;
617 let Inst{9-6} = cond;
618 let Inst{5-0} = 0x3c;
621 class BC1F_FM_MM<bits<5> tf> : MMArch {
626 let Inst{31-26} = 0x10;
627 let Inst{25-21} = tf;
628 let Inst{20-18} = 0x0; // cc
629 let Inst{17-16} = 0x0;
630 let Inst{15-0} = offset;
633 class ROUND_W_FM_MM<bits<1> fmt, bits<8> funct> : MMArch {
639 let Inst{31-26} = 0x15;
640 let Inst{25-21} = fd;
641 let Inst{20-16} = fs;
644 let Inst{13-6} = funct;
645 let Inst{5-0} = 0x3b;
648 class ABS_FM_MM<bits<2> fmt, bits<7> funct> : MMArch {
654 let Inst{31-26} = 0x15;
655 let Inst{25-21} = fd;
656 let Inst{20-16} = fs;
658 let Inst{14-13} = fmt;
659 let Inst{12-6} = funct;
660 let Inst{5-0} = 0x3b;
663 class CMov_F_F_FM_MM<bits<9> func, bits<2> fmt> : MMArch {
669 let Inst{31-26} = 0x15;
670 let Inst{25-21} = fd;
671 let Inst{20-16} = fs;
672 let Inst{15-13} = 0x0; //cc
673 let Inst{12-11} = 0x0;
674 let Inst{10-9} = fmt;
675 let Inst{8-0} = func;
678 class CMov_I_F_FM_MM<bits<8> funct, bits<2> fmt> : MMArch {
685 let Inst{31-26} = 0x15;
686 let Inst{25-21} = rt;
687 let Inst{20-16} = fs;
688 let Inst{15-11} = fd;
690 let Inst{7-0} = funct;
693 class MFC1_FM_MM<bits<8> funct> : MMArch {
699 let Inst{31-26} = 0x15;
700 let Inst{25-21} = rt;
701 let Inst{20-16} = fs;
702 let Inst{15-14} = 0x0;
703 let Inst{13-6} = funct;
704 let Inst{5-0} = 0x3b;
707 class MADDS_FM_MM<bits<6> funct>: MMArch {
715 let Inst{31-26} = 0x15;
716 let Inst{25-21} = ft;
717 let Inst{20-16} = fs;
718 let Inst{15-11} = fd;
720 let Inst{5-0} = funct;
723 class COMPACT_BRANCH_FM_MM<bits<5> funct> {
729 let Inst{31-26} = 0x10;
730 let Inst{25-21} = funct;
731 let Inst{20-16} = rs;
732 let Inst{15-0} = offset;
735 class COP0_TLB_FM_MM<bits<10> op> : MMArch {
738 let Inst{31-26} = 0x0;
739 let Inst{25-16} = 0x0;
741 let Inst{5-0} = 0x3c;