1 //===-- MBlazeDisassembler.cpp - Disassembler for MicroBlaze -------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file is part of the MBlaze Disassembler. It contains code to translate
11 // the data produced by the decoder into MCInsts.
13 //===----------------------------------------------------------------------===//
15 #include "MBlazeDisassembler.h"
17 #include "llvm/MC/MCDisassembler.h"
18 #include "llvm/MC/MCInst.h"
19 #include "llvm/MC/MCInstrDesc.h"
20 #include "llvm/Support/Debug.h"
21 #include "llvm/Support/MemoryObject.h"
22 #include "llvm/Support/TargetRegistry.h"
23 #include "llvm/Support/raw_ostream.h"
25 // #include "MBlazeGenDecoderTables.inc"
26 // #include "MBlazeGenRegisterNames.inc"
29 extern const MCInstrDesc MBlazeInsts[];
34 const uint16_t UNSUPPORTED = -1;
36 static const uint16_t mblazeBinary2Opcode[] = {
37 MBlaze::ADD, MBlaze::RSUB, MBlaze::ADDC, MBlaze::RSUBC, //00,01,02,03
38 MBlaze::ADDK, MBlaze::RSUBK, MBlaze::ADDKC, MBlaze::RSUBKC, //04,05,06,07
39 MBlaze::ADDI, MBlaze::RSUBI, MBlaze::ADDIC, MBlaze::RSUBIC, //08,09,0A,0B
40 MBlaze::ADDIK, MBlaze::RSUBIK, MBlaze::ADDIKC, MBlaze::RSUBIKC, //0C,0D,0E,0F
42 MBlaze::MUL, MBlaze::BSRL, MBlaze::IDIV, MBlaze::GETD, //10,11,12,13
43 UNSUPPORTED, UNSUPPORTED, MBlaze::FADD, UNSUPPORTED, //14,15,16,17
44 MBlaze::MULI, MBlaze::BSRLI, UNSUPPORTED, MBlaze::GET, //18,19,1A,1B
45 UNSUPPORTED, UNSUPPORTED, UNSUPPORTED, UNSUPPORTED, //1C,1D,1E,1F
47 MBlaze::OR, MBlaze::AND, MBlaze::XOR, MBlaze::ANDN, //20,21,22,23
48 MBlaze::SEXT8, MBlaze::MFS, MBlaze::BR, MBlaze::BEQ, //24,25,26,27
49 MBlaze::ORI, MBlaze::ANDI, MBlaze::XORI, MBlaze::ANDNI, //28,29,2A,2B
50 MBlaze::IMM, MBlaze::RTSD, MBlaze::BRI, MBlaze::BEQI, //2C,2D,2E,2F
52 MBlaze::LBU, MBlaze::LHU, MBlaze::LW, UNSUPPORTED, //30,31,32,33
53 MBlaze::SB, MBlaze::SH, MBlaze::SW, UNSUPPORTED, //34,35,36,37
54 MBlaze::LBUI, MBlaze::LHUI, MBlaze::LWI, UNSUPPORTED, //38,39,3A,3B
55 MBlaze::SBI, MBlaze::SHI, MBlaze::SWI, UNSUPPORTED, //3C,3D,3E,3F
58 static unsigned getRD(uint32_t insn) {
59 if (!isMBlazeRegister((insn>>21)&0x1F))
61 return getMBlazeRegisterFromNumbering((insn>>21)&0x1F);
64 static unsigned getRA(uint32_t insn) {
65 if (!getMBlazeRegisterFromNumbering((insn>>16)&0x1F))
67 return getMBlazeRegisterFromNumbering((insn>>16)&0x1F);
70 static unsigned getRB(uint32_t insn) {
71 if (!getMBlazeRegisterFromNumbering((insn>>11)&0x1F))
73 return getMBlazeRegisterFromNumbering((insn>>11)&0x1F);
76 static int64_t getRS(uint32_t insn) {
77 if (!isSpecialMBlazeRegister(insn&0x3FFF))
79 return getSpecialMBlazeRegisterFromNumbering(insn&0x3FFF);
82 static int64_t getIMM(uint32_t insn) {
83 int16_t val = (insn & 0xFFFF);
87 static int64_t getSHT(uint32_t insn) {
88 int16_t val = (insn & 0x1F);
92 static unsigned getFLAGS(int32_t insn) {
93 return (insn & 0x7FF);
96 static int64_t getFSL(uint32_t insn) {
97 int16_t val = (insn & 0xF);
101 static unsigned decodeMUL(uint32_t insn) {
102 switch (getFLAGS(insn)) {
103 default: return UNSUPPORTED;
104 case 0: return MBlaze::MUL;
105 case 1: return MBlaze::MULH;
106 case 2: return MBlaze::MULHSU;
107 case 3: return MBlaze::MULHU;
111 static unsigned decodeSEXT(uint32_t insn) {
112 switch (insn&0x7FF) {
113 default: return UNSUPPORTED;
114 case 0x60: return MBlaze::SEXT8;
115 case 0x68: return MBlaze::WIC;
116 case 0x64: return MBlaze::WDC;
117 case 0x66: return MBlaze::WDCC;
118 case 0x74: return MBlaze::WDCF;
119 case 0x61: return MBlaze::SEXT16;
120 case 0x41: return MBlaze::SRL;
121 case 0x21: return MBlaze::SRC;
122 case 0x01: return MBlaze::SRA;
123 case 0xE0: return MBlaze::CLZ;
127 static unsigned decodeBEQ(uint32_t insn) {
128 switch ((insn>>21)&0x1F) {
129 default: return UNSUPPORTED;
130 case 0x00: return MBlaze::BEQ;
131 case 0x10: return MBlaze::BEQD;
132 case 0x05: return MBlaze::BGE;
133 case 0x15: return MBlaze::BGED;
134 case 0x04: return MBlaze::BGT;
135 case 0x14: return MBlaze::BGTD;
136 case 0x03: return MBlaze::BLE;
137 case 0x13: return MBlaze::BLED;
138 case 0x02: return MBlaze::BLT;
139 case 0x12: return MBlaze::BLTD;
140 case 0x01: return MBlaze::BNE;
141 case 0x11: return MBlaze::BNED;
145 static unsigned decodeBEQI(uint32_t insn) {
146 switch ((insn>>21)&0x1F) {
147 default: return UNSUPPORTED;
148 case 0x00: return MBlaze::BEQI;
149 case 0x10: return MBlaze::BEQID;
150 case 0x05: return MBlaze::BGEI;
151 case 0x15: return MBlaze::BGEID;
152 case 0x04: return MBlaze::BGTI;
153 case 0x14: return MBlaze::BGTID;
154 case 0x03: return MBlaze::BLEI;
155 case 0x13: return MBlaze::BLEID;
156 case 0x02: return MBlaze::BLTI;
157 case 0x12: return MBlaze::BLTID;
158 case 0x01: return MBlaze::BNEI;
159 case 0x11: return MBlaze::BNEID;
163 static unsigned decodeBR(uint32_t insn) {
164 switch ((insn>>16)&0x1F) {
165 default: return UNSUPPORTED;
166 case 0x00: return MBlaze::BR;
167 case 0x08: return MBlaze::BRA;
168 case 0x0C: return MBlaze::BRK;
169 case 0x10: return MBlaze::BRD;
170 case 0x14: return MBlaze::BRLD;
171 case 0x18: return MBlaze::BRAD;
172 case 0x1C: return MBlaze::BRALD;
176 static unsigned decodeBRI(uint32_t insn) {
177 switch (insn&0x3FFFFFF) {
179 case 0x0020004: return MBlaze::IDMEMBAR;
180 case 0x0220004: return MBlaze::DMEMBAR;
181 case 0x0420004: return MBlaze::IMEMBAR;
184 switch ((insn>>16)&0x1F) {
185 default: return UNSUPPORTED;
186 case 0x00: return MBlaze::BRI;
187 case 0x08: return MBlaze::BRAI;
188 case 0x0C: return MBlaze::BRKI;
189 case 0x10: return MBlaze::BRID;
190 case 0x14: return MBlaze::BRLID;
191 case 0x18: return MBlaze::BRAID;
192 case 0x1C: return MBlaze::BRALID;
196 static unsigned decodeBSRL(uint32_t insn) {
197 switch ((insn>>9)&0x3) {
198 default: return UNSUPPORTED;
199 case 0x2: return MBlaze::BSLL;
200 case 0x1: return MBlaze::BSRA;
201 case 0x0: return MBlaze::BSRL;
205 static unsigned decodeBSRLI(uint32_t insn) {
206 switch ((insn>>9)&0x3) {
207 default: return UNSUPPORTED;
208 case 0x2: return MBlaze::BSLLI;
209 case 0x1: return MBlaze::BSRAI;
210 case 0x0: return MBlaze::BSRLI;
214 static unsigned decodeRSUBK(uint32_t insn) {
215 switch (getFLAGS(insn)) {
216 default: return UNSUPPORTED;
217 case 0x0: return MBlaze::RSUBK;
218 case 0x1: return MBlaze::CMP;
219 case 0x3: return MBlaze::CMPU;
223 static unsigned decodeFADD(uint32_t insn) {
224 switch (getFLAGS(insn)) {
225 default: return UNSUPPORTED;
226 case 0x000: return MBlaze::FADD;
227 case 0x080: return MBlaze::FRSUB;
228 case 0x100: return MBlaze::FMUL;
229 case 0x180: return MBlaze::FDIV;
230 case 0x200: return MBlaze::FCMP_UN;
231 case 0x210: return MBlaze::FCMP_LT;
232 case 0x220: return MBlaze::FCMP_EQ;
233 case 0x230: return MBlaze::FCMP_LE;
234 case 0x240: return MBlaze::FCMP_GT;
235 case 0x250: return MBlaze::FCMP_NE;
236 case 0x260: return MBlaze::FCMP_GE;
237 case 0x280: return MBlaze::FLT;
238 case 0x300: return MBlaze::FINT;
239 case 0x380: return MBlaze::FSQRT;
243 static unsigned decodeGET(uint32_t insn) {
244 switch ((insn>>10)&0x3F) {
245 default: return UNSUPPORTED;
246 case 0x00: return MBlaze::GET;
247 case 0x01: return MBlaze::EGET;
248 case 0x02: return MBlaze::AGET;
249 case 0x03: return MBlaze::EAGET;
250 case 0x04: return MBlaze::TGET;
251 case 0x05: return MBlaze::TEGET;
252 case 0x06: return MBlaze::TAGET;
253 case 0x07: return MBlaze::TEAGET;
254 case 0x08: return MBlaze::CGET;
255 case 0x09: return MBlaze::ECGET;
256 case 0x0A: return MBlaze::CAGET;
257 case 0x0B: return MBlaze::ECAGET;
258 case 0x0C: return MBlaze::TCGET;
259 case 0x0D: return MBlaze::TECGET;
260 case 0x0E: return MBlaze::TCAGET;
261 case 0x0F: return MBlaze::TECAGET;
262 case 0x10: return MBlaze::NGET;
263 case 0x11: return MBlaze::NEGET;
264 case 0x12: return MBlaze::NAGET;
265 case 0x13: return MBlaze::NEAGET;
266 case 0x14: return MBlaze::TNGET;
267 case 0x15: return MBlaze::TNEGET;
268 case 0x16: return MBlaze::TNAGET;
269 case 0x17: return MBlaze::TNEAGET;
270 case 0x18: return MBlaze::NCGET;
271 case 0x19: return MBlaze::NECGET;
272 case 0x1A: return MBlaze::NCAGET;
273 case 0x1B: return MBlaze::NECAGET;
274 case 0x1C: return MBlaze::TNCGET;
275 case 0x1D: return MBlaze::TNECGET;
276 case 0x1E: return MBlaze::TNCAGET;
277 case 0x1F: return MBlaze::TNECAGET;
278 case 0x20: return MBlaze::PUT;
279 case 0x22: return MBlaze::APUT;
280 case 0x24: return MBlaze::TPUT;
281 case 0x26: return MBlaze::TAPUT;
282 case 0x28: return MBlaze::CPUT;
283 case 0x2A: return MBlaze::CAPUT;
284 case 0x2C: return MBlaze::TCPUT;
285 case 0x2E: return MBlaze::TCAPUT;
286 case 0x30: return MBlaze::NPUT;
287 case 0x32: return MBlaze::NAPUT;
288 case 0x34: return MBlaze::TNPUT;
289 case 0x36: return MBlaze::TNAPUT;
290 case 0x38: return MBlaze::NCPUT;
291 case 0x3A: return MBlaze::NCAPUT;
292 case 0x3C: return MBlaze::TNCPUT;
293 case 0x3E: return MBlaze::TNCAPUT;
297 static unsigned decodeGETD(uint32_t insn) {
298 switch ((insn>>5)&0x3F) {
299 default: return UNSUPPORTED;
300 case 0x00: return MBlaze::GETD;
301 case 0x01: return MBlaze::EGETD;
302 case 0x02: return MBlaze::AGETD;
303 case 0x03: return MBlaze::EAGETD;
304 case 0x04: return MBlaze::TGETD;
305 case 0x05: return MBlaze::TEGETD;
306 case 0x06: return MBlaze::TAGETD;
307 case 0x07: return MBlaze::TEAGETD;
308 case 0x08: return MBlaze::CGETD;
309 case 0x09: return MBlaze::ECGETD;
310 case 0x0A: return MBlaze::CAGETD;
311 case 0x0B: return MBlaze::ECAGETD;
312 case 0x0C: return MBlaze::TCGETD;
313 case 0x0D: return MBlaze::TECGETD;
314 case 0x0E: return MBlaze::TCAGETD;
315 case 0x0F: return MBlaze::TECAGETD;
316 case 0x10: return MBlaze::NGETD;
317 case 0x11: return MBlaze::NEGETD;
318 case 0x12: return MBlaze::NAGETD;
319 case 0x13: return MBlaze::NEAGETD;
320 case 0x14: return MBlaze::TNGETD;
321 case 0x15: return MBlaze::TNEGETD;
322 case 0x16: return MBlaze::TNAGETD;
323 case 0x17: return MBlaze::TNEAGETD;
324 case 0x18: return MBlaze::NCGETD;
325 case 0x19: return MBlaze::NECGETD;
326 case 0x1A: return MBlaze::NCAGETD;
327 case 0x1B: return MBlaze::NECAGETD;
328 case 0x1C: return MBlaze::TNCGETD;
329 case 0x1D: return MBlaze::TNECGETD;
330 case 0x1E: return MBlaze::TNCAGETD;
331 case 0x1F: return MBlaze::TNECAGETD;
332 case 0x20: return MBlaze::PUTD;
333 case 0x22: return MBlaze::APUTD;
334 case 0x24: return MBlaze::TPUTD;
335 case 0x26: return MBlaze::TAPUTD;
336 case 0x28: return MBlaze::CPUTD;
337 case 0x2A: return MBlaze::CAPUTD;
338 case 0x2C: return MBlaze::TCPUTD;
339 case 0x2E: return MBlaze::TCAPUTD;
340 case 0x30: return MBlaze::NPUTD;
341 case 0x32: return MBlaze::NAPUTD;
342 case 0x34: return MBlaze::TNPUTD;
343 case 0x36: return MBlaze::TNAPUTD;
344 case 0x38: return MBlaze::NCPUTD;
345 case 0x3A: return MBlaze::NCAPUTD;
346 case 0x3C: return MBlaze::TNCPUTD;
347 case 0x3E: return MBlaze::TNCAPUTD;
351 static unsigned decodeIDIV(uint32_t insn) {
353 default: return UNSUPPORTED;
354 case 0x0: return MBlaze::IDIV;
355 case 0x2: return MBlaze::IDIVU;
359 static unsigned decodeLBU(uint32_t insn) {
360 switch ((insn>>9)&0x1) {
361 default: return UNSUPPORTED;
362 case 0x0: return MBlaze::LBU;
363 case 0x1: return MBlaze::LBUR;
367 static unsigned decodeLHU(uint32_t insn) {
368 switch ((insn>>9)&0x1) {
369 default: return UNSUPPORTED;
370 case 0x0: return MBlaze::LHU;
371 case 0x1: return MBlaze::LHUR;
375 static unsigned decodeLW(uint32_t insn) {
376 switch ((insn>>9)&0x3) {
377 default: return UNSUPPORTED;
378 case 0x0: return MBlaze::LW;
379 case 0x1: return MBlaze::LWR;
380 case 0x2: return MBlaze::LWX;
384 static unsigned decodeSB(uint32_t insn) {
385 switch ((insn>>9)&0x1) {
386 default: return UNSUPPORTED;
387 case 0x0: return MBlaze::SB;
388 case 0x1: return MBlaze::SBR;
392 static unsigned decodeSH(uint32_t insn) {
393 switch ((insn>>9)&0x1) {
394 default: return UNSUPPORTED;
395 case 0x0: return MBlaze::SH;
396 case 0x1: return MBlaze::SHR;
400 static unsigned decodeSW(uint32_t insn) {
401 switch ((insn>>9)&0x3) {
402 default: return UNSUPPORTED;
403 case 0x0: return MBlaze::SW;
404 case 0x1: return MBlaze::SWR;
405 case 0x2: return MBlaze::SWX;
409 static unsigned decodeMFS(uint32_t insn) {
410 switch ((insn>>15)&0x1) {
411 default: return UNSUPPORTED;
413 switch ((insn>>16)&0x1) {
414 default: return UNSUPPORTED;
415 case 0x0: return MBlaze::MSRSET;
416 case 0x1: return MBlaze::MSRCLR;
419 switch ((insn>>14)&0x1) {
420 default: return UNSUPPORTED;
421 case 0x0: return MBlaze::MFS;
422 case 0x1: return MBlaze::MTS;
427 static unsigned decodeOR(uint32_t insn) {
428 switch (getFLAGS(insn)) {
429 default: return UNSUPPORTED;
430 case 0x000: return MBlaze::OR;
431 case 0x400: return MBlaze::PCMPBF;
435 static unsigned decodeXOR(uint32_t insn) {
436 switch (getFLAGS(insn)) {
437 default: return UNSUPPORTED;
438 case 0x000: return MBlaze::XOR;
439 case 0x400: return MBlaze::PCMPEQ;
443 static unsigned decodeANDN(uint32_t insn) {
444 switch (getFLAGS(insn)) {
445 default: return UNSUPPORTED;
446 case 0x000: return MBlaze::ANDN;
447 case 0x400: return MBlaze::PCMPNE;
451 static unsigned decodeRTSD(uint32_t insn) {
452 switch ((insn>>21)&0x1F) {
453 default: return UNSUPPORTED;
454 case 0x10: return MBlaze::RTSD;
455 case 0x11: return MBlaze::RTID;
456 case 0x12: return MBlaze::RTBD;
457 case 0x14: return MBlaze::RTED;
461 static unsigned getOPCODE(uint32_t insn) {
462 unsigned opcode = mblazeBinary2Opcode[ (insn>>26)&0x3F ];
464 case MBlaze::MUL: return decodeMUL(insn);
465 case MBlaze::SEXT8: return decodeSEXT(insn);
466 case MBlaze::BEQ: return decodeBEQ(insn);
467 case MBlaze::BEQI: return decodeBEQI(insn);
468 case MBlaze::BR: return decodeBR(insn);
469 case MBlaze::BRI: return decodeBRI(insn);
470 case MBlaze::BSRL: return decodeBSRL(insn);
471 case MBlaze::BSRLI: return decodeBSRLI(insn);
472 case MBlaze::RSUBK: return decodeRSUBK(insn);
473 case MBlaze::FADD: return decodeFADD(insn);
474 case MBlaze::GET: return decodeGET(insn);
475 case MBlaze::GETD: return decodeGETD(insn);
476 case MBlaze::IDIV: return decodeIDIV(insn);
477 case MBlaze::LBU: return decodeLBU(insn);
478 case MBlaze::LHU: return decodeLHU(insn);
479 case MBlaze::LW: return decodeLW(insn);
480 case MBlaze::SB: return decodeSB(insn);
481 case MBlaze::SH: return decodeSH(insn);
482 case MBlaze::SW: return decodeSW(insn);
483 case MBlaze::MFS: return decodeMFS(insn);
484 case MBlaze::OR: return decodeOR(insn);
485 case MBlaze::XOR: return decodeXOR(insn);
486 case MBlaze::ANDN: return decodeANDN(insn);
487 case MBlaze::RTSD: return decodeRTSD(insn);
488 default: return opcode;
493 // Public interface for the disassembler
496 MCDisassembler::DecodeStatus MBlazeDisassembler::getInstruction(MCInst &instr,
498 const MemoryObject ®ion,
500 raw_ostream &vStream,
501 raw_ostream &cStream) const {
502 // The machine instruction.
507 // By default we consume 1 byte on failure
510 // We want to read exactly 4 bytes of data.
511 if (region.readBytes(address, 4, (uint8_t*)bytes, &read) == -1 || read < 4)
514 // Encoded as a big-endian 32-bit word in the stream.
515 insn = (bytes[0]<<24) | (bytes[1]<<16) | (bytes[2]<< 8) | (bytes[3]<<0);
517 // Get the MCInst opcode from the binary instruction and make sure
518 // that it is a valid instruction.
519 unsigned opcode = getOPCODE(insn);
520 if (opcode == UNSUPPORTED)
523 instr.setOpcode(opcode);
525 unsigned RD = getRD(insn);
526 unsigned RA = getRA(insn);
527 unsigned RB = getRB(insn);
528 unsigned RS = getRS(insn);
530 uint64_t tsFlags = MBlazeInsts[opcode].TSFlags;
531 switch ((tsFlags & MBlazeII::FormMask)) {
538 case MBlazeII::FRRRR:
539 if (RD == UNSUPPORTED || RA == UNSUPPORTED || RB == UNSUPPORTED)
541 instr.addOperand(MCOperand::CreateReg(RD));
542 instr.addOperand(MCOperand::CreateReg(RB));
543 instr.addOperand(MCOperand::CreateReg(RA));
547 if (RD == UNSUPPORTED || RA == UNSUPPORTED || RB == UNSUPPORTED)
549 instr.addOperand(MCOperand::CreateReg(RD));
550 instr.addOperand(MCOperand::CreateReg(RA));
551 instr.addOperand(MCOperand::CreateReg(RB));
555 if (RD == UNSUPPORTED || RA == UNSUPPORTED)
557 instr.addOperand(MCOperand::CreateReg(RD));
558 instr.addOperand(MCOperand::CreateReg(RA));
566 if (RD == UNSUPPORTED)
568 instr.addOperand(MCOperand::CreateReg(RD));
569 instr.addOperand(MCOperand::CreateImm(insn&0x3FFF));
572 if (RA == UNSUPPORTED)
574 instr.addOperand(MCOperand::CreateImm(insn&0x3FFF));
575 instr.addOperand(MCOperand::CreateReg(RA));
579 if (RD == UNSUPPORTED)
581 instr.addOperand(MCOperand::CreateReg(RD));
582 instr.addOperand(MCOperand::CreateImm(insn&0x7FFF));
588 if (RD == UNSUPPORTED || RA == UNSUPPORTED)
590 instr.addOperand(MCOperand::CreateReg(RD));
591 instr.addOperand(MCOperand::CreateReg(RA));
594 instr.addOperand(MCOperand::CreateImm(getIMM(insn)));
599 instr.addOperand(MCOperand::CreateImm(insn&0x1F));
605 if (RA == UNSUPPORTED || RB == UNSUPPORTED)
607 instr.addOperand(MCOperand::CreateReg(RA));
608 instr.addOperand(MCOperand::CreateReg(RB));
612 if (RA == UNSUPPORTED)
614 instr.addOperand(MCOperand::CreateReg(RA));
615 instr.addOperand(MCOperand::CreateImm(getIMM(insn)));
619 if (RD == UNSUPPORTED || RB == UNSUPPORTED)
621 instr.addOperand(MCOperand::CreateReg(RD));
622 instr.addOperand(MCOperand::CreateReg(RB));
626 if (RD == UNSUPPORTED)
628 instr.addOperand(MCOperand::CreateReg(RD));
629 instr.addOperand(MCOperand::CreateImm(getIMM(insn)));
633 if (RB == UNSUPPORTED)
635 instr.addOperand(MCOperand::CreateReg(RB));
639 instr.addOperand(MCOperand::CreateImm(getIMM(insn)));
642 case MBlazeII::FRRCI:
643 if (RD == UNSUPPORTED || RA == UNSUPPORTED)
645 instr.addOperand(MCOperand::CreateReg(RD));
646 instr.addOperand(MCOperand::CreateReg(RA));
647 instr.addOperand(MCOperand::CreateImm(getSHT(insn)));
651 if (RD == UNSUPPORTED || RA == UNSUPPORTED)
653 instr.addOperand(MCOperand::CreateReg(RD));
654 instr.addOperand(MCOperand::CreateReg(RA));
658 if (RD == UNSUPPORTED)
660 instr.addOperand(MCOperand::CreateReg(RD));
661 instr.addOperand(MCOperand::CreateImm(getFSL(insn)));
665 if (RD == UNSUPPORTED || RS == UNSUPPORTED)
667 instr.addOperand(MCOperand::CreateReg(RD));
668 instr.addOperand(MCOperand::CreateReg(RS));
671 case MBlazeII::FCRCS:
672 if (RS == UNSUPPORTED || RA == UNSUPPORTED)
674 instr.addOperand(MCOperand::CreateReg(RS));
675 instr.addOperand(MCOperand::CreateReg(RA));
678 case MBlazeII::FCRCX:
679 if (RA == UNSUPPORTED)
681 instr.addOperand(MCOperand::CreateReg(RA));
682 instr.addOperand(MCOperand::CreateImm(getFSL(insn)));
686 instr.addOperand(MCOperand::CreateImm(getFSL(insn)));
690 if (RB == UNSUPPORTED)
692 instr.addOperand(MCOperand::CreateReg(RB));
696 if (RD == UNSUPPORTED || RA == UNSUPPORTED)
698 instr.addOperand(MCOperand::CreateReg(RD));
699 instr.addOperand(MCOperand::CreateImm(getIMM(insn)));
700 instr.addOperand(MCOperand::CreateReg(RA));
704 // We always consume 4 bytes of data on success
710 static MCDisassembler *createMBlazeDisassembler(const Target &T,
711 const MCSubtargetInfo &STI) {
712 return new MBlazeDisassembler(STI);
715 extern "C" void LLVMInitializeMBlazeDisassembler() {
716 // Register the disassembler.
717 TargetRegistry::RegisterMCDisassembler(TheMBlazeTarget,
718 createMBlazeDisassembler);