1// Copyright (c) 2007 The Hewlett-Packard Development Company
2// All rights reserved.
3//
4// Redistribution and use of this software in source and binary forms,
5// with or without modification, are permitted provided that the
6// following conditions are met:
7//
8// The software must be used only for Non-Commercial Use which means any
9// use which is NOT directed to receiving any direct monetary
10// compensation for, or commercial advantage from such use. Illustrative
11// examples of non-commercial use are academic research, personal study,
12// teaching, education and corporate research & development.
13// Illustrative examples of commercial use are distributing products for
14// commercial advantage and providing services using the software for
15// commercial advantage.
16//
17// If you wish to use this software or functionality therein that may be
18// covered by patents for commercial use, please contact:
19// Director of Intellectual Property Licensing
20// Office of Strategy and Technology
21// Hewlett-Packard Company
22// 1501 Page Mill Road
23// Palo Alto, California 94304
24//
25// Redistributions of source code must retain the above copyright notice,
26// this list of conditions and the following disclaimer. Redistributions
27// in binary form must reproduce the above copyright notice, this list of
28// conditions and the following disclaimer in the documentation and/or
29// other materials provided with the distribution. Neither the name of
30// the COPYRIGHT HOLDER(s), HEWLETT-PACKARD COMPANY, nor the names of its
31// contributors may be used to endorse or promote products derived from
32// this software without specific prior written permission. No right of
33// sublicense is granted herewith. Derivatives of the software and
34// output created using the software may be prepared, but only for
35// Non-Commercial Uses. Derivatives of the software may be shared with
36// others provided: (i) the others agree to abide by the list of
37// conditions herein which includes the Non-Commercial Use restrictions;
38// and (ii) such Derivatives of the software include the above copyright
39// notice to acknowledge the contribution from this software where
40// applicable, this list of conditions and the disclaimer below.
41//
42// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
43// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
44// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
45// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
46// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
47// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
48// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
49// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
50// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
51// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
52// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
53//
54// Authors: Gabe Black
55
56////////////////////////////////////////////////////////////////////
57//
58// Decode the one byte opcodes
59//
60
610x1: decode OPCODE_OP_TOP5 {
62 format WarnUnimpl {
63 0x00: decode OPCODE_OP_BOTTOM3 {
64 0x6: decode MODE_SUBMODE {
65 0x0: Inst::UD2();
66 default: push_ES();
67 }
68 0x7: decode MODE_SUBMODE {
69 0x0: Inst::UD2();
70 default: pop_ES();
71 }
72 default: MultiInst::ADD(OPCODE_OP_BOTTOM3,
73 [Eb,Gb], [Ev,Gv],
74 [Gb,Eb], [Gv,Ev],
75 [rAb,Ib], [rAv,Iz]);
76 }
77 0x01: decode OPCODE_OP_BOTTOM3 {
78 0x6: decode MODE_SUBMODE {
79 0x0: Inst::UD2();
80 default: push_CS();
81 }
82 //Any time this is seen, it should generate a two byte opcode
83 0x7: M5InternalError::error(
84 {{"Saw a one byte opcode whose value was 0x0F!"}});
85 default: MultiInst::OR(OPCODE_OP_BOTTOM3,
86 [Eb,Gb], [Ev,Gv],
87 [Gb,Eb], [Gv,Ev],
88 [rAb,Ib], [rAv,Iz]);
89 }
90 0x02: decode OPCODE_OP_BOTTOM3 {
91 0x6: decode MODE_SUBMODE {
92 0x0: Inst::UD2();
93 default: push_SS();
94 }
95 0x7: decode MODE_SUBMODE {
96 0x0: Inst::UD2();
97 default: pop_SS();
98 }
99 default: MultiInst::ADC(OPCODE_OP_BOTTOM3,
100 [Eb,Gb], [Ev,Gv],
101 [Gb,Eb], [Gv,Ev],
102 [rAb,Ib], [rAv,Iz]);
103 }
104 0x03: decode OPCODE_OP_BOTTOM3 {
105 0x6: decode MODE_SUBMODE {
106 0x0: Inst::UD2();
107 default: push_DS();
108 }
109 0x7: decode MODE_SUBMODE {
110 0x0: Inst::UD2();
111 default: pop_DS();
112 }
113 default: MultiInst::SBB(OPCODE_OP_BOTTOM3,
114 [Eb,Gb], [Ev,Gv],
115 [Gb,Eb], [Gv,Ev],
116 [rAb,Ib], [rAv,Iz]);
117 }
118 0x04: decode OPCODE_OP_BOTTOM3 {
119 0x6: M5InternalError::error(
120 {{"Tried to execute the ES segment override prefix!"}});
121 0x7: decode MODE_SUBMODE {
122 0x0: Inst::UD2();
123 default: daa();
124 }
125 default: MultiInst::AND(OPCODE_OP_BOTTOM3,
126 [Eb,Gb], [Ev,Gv],
127 [Gb,Eb], [Gv,Ev],
128 [rAb,Ib], [rAv,Iz]);
129 }
130 0x05: decode OPCODE_OP_BOTTOM3 {
131 0x6: M5InternalError::error(
132 {{"Tried to execute the CS segment override prefix!"}});
133 0x7: das();
134 default: MultiInst::SUB(OPCODE_OP_BOTTOM3,
135 [Eb,Gb], [Ev,Gv],
136 [Gb,Eb], [Gv,Ev],
137 [rAb,Ib], [rAv,Iz]);
138 }
139 0x06: decode OPCODE_OP_BOTTOM3 {
140 0x6: M5InternalError::error(
141 {{"Tried to execute the SS segment override prefix!"}});
142 0x7: decode MODE_SUBMODE {
143 0x0: Inst::UD2();
144 default: aaa();
145 }
146 default: MultiInst::XOR(OPCODE_OP_BOTTOM3,
147 [Eb,Gb], [Ev,Gv],
148 [Gb,Eb], [Gv,Ev],
149 [rAb,Ib], [rAv,Iz]);
150 }
151 0x07: decode OPCODE_OP_BOTTOM3 {
152 0x6: M5InternalError::error(
153 {{"Tried to execute the DS segment override prefix!"}});
154 0x7: decode MODE_SUBMODE {
155 0x0: Inst::UD2();
156 default: aas();
157 }
158 default: MultiInst::CMP(OPCODE_OP_BOTTOM3,
159 [Eb,Gb], [Ev,Gv],
160 [Gb,Eb], [Gv,Ev],
161 [rAb,Ib], [rAv,Iz]);
162 }
163 format Inst {
164 0x08: decode MODE_SUBMODE {
165 0x0: M5InternalError::error (
166 {{"Tried to execute an REX prefix!"}});
167 default: INC(Bv);
168 }
169 0x09: decode MODE_SUBMODE {
170 0x0: M5InternalError::error (
171 {{"Tried to execute an REX prefix!"}});
172 default: DEC(Bv);
173 }
174 0x0A: PUSH(Bv);
175 0x0B: POP(Bv);
176 }
177 0x0C: decode OPCODE_OP_BOTTOM3 {
178 0x0: decode MODE_SUBMODE {
179 0x0: Inst::UD2();
180 default: Inst::PUSHA();
181 }
182 0x1: decode MODE_SUBMODE {
183 0x0: Inst::UD2();
184 default: Inst::POPA();
185 }
186 0x2: decode MODE_SUBMODE {
187 0x0: Inst::UD2();
188 default: bound_Gv_Ma();
189 }
190 0x3: decode MODE_SUBMODE {
191 //The second operand should really be of size "d", but it's
192 //set to "v" in order to have a consistent register size.
193 //This shouldn't affect behavior.
194 0x0: Inst::MOVSXD(Gv,Ev);
195 default: arpl_Ew_Gw();
196 }
197 0x4: M5InternalError::error(
198 {{"Tried to execute the FS segment override prefix!"}});
199 0x5: M5InternalError::error(
200 {{"Tried to execute the GS segment override prefix!"}});
201 0x6: M5InternalError::error(
202 {{"Tried to execute the operand size override prefix!"}});
203 0x7: M5InternalError::error(
204 {{"Tried to execute the DS address size override prefix!"}});
205 }
206 0x0D: decode OPCODE_OP_BOTTOM3 {
207 0x0: Inst::PUSH(Iz);
208 0x1: Inst::IMUL(Gv,Ev,Iz);
209 0x2: Inst::PUSH(Ib);
210 0x3: Inst::IMUL(Gv,Ev,Ib);
211 0x4: ins_Yb_Dx();
212 0x5: ins_Yz_Dx();
213 0x6: outs_Dx_Xb();
214 0x7: outs_Dx_Xz();
215 }
216 format Inst {
217 0x0E: decode OPCODE_OP_BOTTOM3 {
218 0x0: JO(Jb);
219 0x1: JNO(Jb);
220 0x2: JB(Jb);
221 0x3: JNB(Jb);
222 0x4: JZ(Jb);
223 0x5: JNZ(Jb);
224 0x6: JBE(Jb);
225 0x7: JNBE(Jb);
226 }
227 0x0F: decode OPCODE_OP_BOTTOM3 {
228 0x0: JS(Jb);
229 0x1: JNS(Jb);
230 0x2: JP(Jb);
231 0x3: JNP(Jb);
232 0x4: JL(Jb);
233 0x5: JNL(Jb);
234 0x6: JLE(Jb);
235 0x7: JNLE(Jb);
236 }
237 }
238 format Inst {
239 0x10: decode OPCODE_OP_BOTTOM3 {
240 //0x0: group1_Eb_Ib();
241 0x0: decode MODRM_REG {
242 0x0: ADD(Eb,Ib);
243 0x1: OR(Eb,Ib);
244 0x2: ADC(Eb,Ib);
245 0x3: SBB(Eb,Ib);
246 0x4: AND(Eb,Ib);
247 0x5: SUB(Eb,Ib);
248 0x6: XOR(Eb,Ib);
249 0x7: CMP(Eb,Ib);
250 }
251 //0x1: group1_Ev_Iz();
252 0x1: decode MODRM_REG {
253 0x0: ADD(Ev,Iz);
254 0x1: OR(Ev,Iz);
255 0x2: ADC(Ev,Iz);
256 0x3: SBB(Ev,Iz);
257 0x4: AND(Ev,Iz);
258 0x5: SUB(Ev,Iz);
259 0x6: XOR(Ev,Iz);
260 0x7: CMP(Ev,Iz);
261 }
262 0x2: decode MODE_SUBMODE {
263 0x0: UD2();
264 //default: group1_Eb_Ib();
265 default: decode MODRM_REG {
266 0x0: ADD(Eb,Ib);
267 0x1: OR(Eb,Ib);
268 0x2: ADC(Eb,Ib);
269 0x3: SBB(Eb,Ib);
270 0x4: AND(Eb,Ib);
271 0x5: SUB(Eb,Ib);
272 0x6: XOR(Eb,Ib);
273 0x7: CMP(Eb,Ib);
274 }
275 }
276 //0x3: group1_Ev_Ib();
277 0x3: decode MODRM_REG {
278 0x0: ADD(Ev,Ib);
279 0x1: OR(Ev,Ib);
280 0x2: ADC(Ev,Ib);
281 0x3: SBB(Ev,Ib);
282 0x4: AND(Ev,Ib);
283 0x5: SUB(Ev,Ib);
284 0x6: XOR(Ev,Ib);
285 0x7: CMP(Ev,Ib);
286 }
287 0x4: TEST(Eb,Gb);
288 0x5: TEST(Ev,Gv);
289 0x6: XCHG(Eb,Gb);
290 0x7: XCHG(Ev,Gv);
291 }
292 }
293 0x11: decode OPCODE_OP_BOTTOM3 {
294 0x0: Inst::MOV(Eb,Gb);
295 0x1: Inst::MOV(Ev,Gv);
296 0x2: Inst::MOV(Gb,Eb);
297 0x3: Inst::MOV(Gv,Ev);
298 0x4: mov_MwRv_Sw(); //What to do with this one?
299 0x5: Inst::LEA(Gv,M);
300 0x6: mov_Sw_MwRv();
301 0x7: group10_Ev(); //Make sure this is Ev
302 }
303 0x12: decode OPCODE_OP_BOTTOM3 {
304 0x0: Inst::NOP(); //XXX repe makes this a "pause"
305 default: Inst::XCHG(Bv,rAv);
306 }
307 0x13: decode OPCODE_OP_BOTTOM3 {
308 0x0: Inst::CDQE(rAv);
309 0x1: Inst::CQO(rAv,rDv);
310 0x2: decode MODE_SUBMODE {
311 0x0: Inst::UD2();
312 default: call_far_Ap();
313 }
314 0x3: fwait(); //aka wait
315 0x4: pushf_Fv();
316 0x5: popf_Fv();
317 //Both of these should be illegal only if CPUID.AHF64=0,
318 //according to sandpile.org
319 0x6: decode MODE_SUBMODE {
320 0x0: Inst::UD2();
321 default: sahf();
322 }
323 0x7: decode MODE_SUBMODE {
324 0x0: Inst::UD2();
325 default: lahf();
326 }
327 }
328 format Inst {
329 0x14: decode OPCODE_OP_BOTTOM3 {
330 0x0: MOV(rAb, Ob);
331 0x1: MOV(rAv, Ov);
332 0x2: MOV(Ob, rAb);
333 0x3: MOV(Ov, rAv);
334 0x4: StringInst::MOVS(Yb,Xb);
335 0x5: StringInst::MOVS(Yv,Xv);
336 0x6: StringTestInst::CMPS(Yb,Xb);
337 0x7: StringTestInst::CMPS(Yv,Xv);
338 }
339 0x15: decode OPCODE_OP_BOTTOM3 {
340 0x0: TEST(rAb,Ib);
341 0x1: TEST(rAv,Iz);
342 0x2: StringInst::STOS(Yb);
343 0x3: StringInst::STOS(Yv);
344 0x4: StringInst::LODS(Xb);
345 0x5: StringInst::LODS(Xv);
346 0x6: StringTestInst::SCAS(Yb);
347 0x7: StringTestInst::SCAS(Yv);
348 }
349 0x16: MOV(Bb,Ib);
350 0x17: MOV(Bv,Iv);
351 0x18: decode OPCODE_OP_BOTTOM3 {
352 //0x0: group2_Eb_Ib();
353 0x0: decode MODRM_REG {
354 0x0: ROL(Eb,Ib);
355 0x1: ROR(Eb,Ib);
356 0x2: RCL(Eb,Ib);
357 0x3: RCR(Eb,Ib);
358 0x4: SAL(Eb,Ib);
359 0x5: SHR(Eb,Ib);
360 0x6: SAL(Eb,Ib);
361 0x7: SAR(Eb,Ib);
362 }
363 //0x1: group2_Ev_Ib();
364 0x1: decode MODRM_REG {
365 0x0: ROL(Ev,Ib);
366 0x1: ROR(Ev,Ib);
367 0x2: RCL(Ev,Ib);
368 0x3: RCR(Ev,Ib);
369 0x4: SAL(Ev,Ib);
370 0x5: SHR(Ev,Ib);
371 0x6: SAL(Ev,Ib);
372 0x7: SAR(Ev,Ib);
373 }
374 0x2: RET_NEAR(Iw);
375 0x3: RET_NEAR();
376 0x4: decode MODE_SUBMODE {
377 0x0: UD2();
378 default: WarnUnimpl::les_Gz_Mp();
379 }
380 0x5: decode MODE_SUBMODE {
381 0x0: UD2();
382 default: WarnUnimpl::lds_Gz_Mp();
383 }
384 //0x6: group12_Eb_Ib();
385 0x6: decode MODRM_REG {
386 0x0: MOV(Eb,Ib);
387 default: UD2();
388 }
389 //0x7: group12_Ev_Iz();
390 0x7: decode MODRM_REG {
391 0x0: MOV(Ev,Iz);
392 default: UD2();
393 }
394 }
395 }
396 0x19: decode OPCODE_OP_BOTTOM3 {
397 0x0: enter_Iw_Ib();
398 0x1: Inst::LEAVE();
399 0x2: ret_far_Iw();
400 0x3: ret_far();
401 0x4: int3();
402 0x5: int_Ib();
403 0x6: decode MODE_SUBMODE {
404 0x0: Inst::UD2();
405 default: into();
406 }
407 0x7: iret();
408 }
409 0x1A: decode OPCODE_OP_BOTTOM3 {
410 format Inst {
411 //0x0: group2_Eb_1();
412 0x0: decode MODRM_REG {
413 0x0: ROL_1(Eb);
414 0x1: ROR_1(Eb);
415 0x2: RCL_1(Eb);
416 0x3: RCR_1(Eb);
417 0x4: SAL_1(Eb);
418 0x5: SHR_1(Eb);
419 0x6: SAL_1(Eb);
420 0x7: SAR_1(Eb);
421 }
422 //0x1: group2_Ev_1();
423 0x1: decode MODRM_REG {
424 0x0: ROL_1(Ev);
425 0x1: ROR_1(Ev);
426 0x2: RCL_1(Ev);
427 0x3: RCR_1(Ev);
428 0x4: SAL_1(Ev);
429 0x5: SHR_1(Ev);
430 0x6: SAL_1(Ev);
431 0x7: SAR_1(Ev);
432 }
433 //0x2: group2_Eb_Cl();
434 0x2: decode MODRM_REG {
435 0x0: ROL(Eb,rCb);
436 0x1: ROR(Eb,rCb);
437 0x2: RCL(Eb,rCb);
438 0x3: RCR(Eb,rCb);
439 0x4: SAL(Eb,rCb);
440 0x5: SHR(Eb,rCb);
441 0x6: SAL(Eb,rCb);
442 0x7: SAR(Eb,rCb);
443 }
444 //The second operand should have size "b", but to have
445 //consistent register sizes it's "v". This shouldn't have
446 //any affect on functionality.
447 //0x3: group2_Ev_Cl();
448 0x3: decode MODRM_REG {
449 0x0: ROL(Ev,rCv);
450 0x1: ROR(Ev,rCv);
451 0x2: RCL(Ev,rCv);
452 0x3: RCR(Ev,rCv);
453 0x4: SAL(Ev,rCv);
454 0x5: SHR(Ev,rCv);
455 0x6: SAL(Ev,rCv);
456 0x7: SAR(Ev,rCv);
457 }
458 }
459 0x4: decode MODE_SUBMODE {
460 0x0: Inst::UD2();
461 default: aam_Ib();
462 }
463 0x5: decode MODE_SUBMODE {
464 0x0: Inst::UD2();
465 default: aad_Ib();
466 }
467 0x6: decode MODE_SUBMODE {
468 0x0: Inst::UD2();
469 default: salc();
470 }
471 0x7: xlat();
472 }
473 ##include "x87.isa"
474 0x1C: decode OPCODE_OP_BOTTOM3 {
475 0x0: Inst::LOOPNE(Jb);
476 0x1: Inst::LOOPE(Jb);
477 0x2: Inst::LOOP(Jb);
478 0x3: Inst::JRCX(Jb);
| 1// Copyright (c) 2007 The Hewlett-Packard Development Company
2// All rights reserved.
3//
4// Redistribution and use of this software in source and binary forms,
5// with or without modification, are permitted provided that the
6// following conditions are met:
7//
8// The software must be used only for Non-Commercial Use which means any
9// use which is NOT directed to receiving any direct monetary
10// compensation for, or commercial advantage from such use. Illustrative
11// examples of non-commercial use are academic research, personal study,
12// teaching, education and corporate research & development.
13// Illustrative examples of commercial use are distributing products for
14// commercial advantage and providing services using the software for
15// commercial advantage.
16//
17// If you wish to use this software or functionality therein that may be
18// covered by patents for commercial use, please contact:
19// Director of Intellectual Property Licensing
20// Office of Strategy and Technology
21// Hewlett-Packard Company
22// 1501 Page Mill Road
23// Palo Alto, California 94304
24//
25// Redistributions of source code must retain the above copyright notice,
26// this list of conditions and the following disclaimer. Redistributions
27// in binary form must reproduce the above copyright notice, this list of
28// conditions and the following disclaimer in the documentation and/or
29// other materials provided with the distribution. Neither the name of
30// the COPYRIGHT HOLDER(s), HEWLETT-PACKARD COMPANY, nor the names of its
31// contributors may be used to endorse or promote products derived from
32// this software without specific prior written permission. No right of
33// sublicense is granted herewith. Derivatives of the software and
34// output created using the software may be prepared, but only for
35// Non-Commercial Uses. Derivatives of the software may be shared with
36// others provided: (i) the others agree to abide by the list of
37// conditions herein which includes the Non-Commercial Use restrictions;
38// and (ii) such Derivatives of the software include the above copyright
39// notice to acknowledge the contribution from this software where
40// applicable, this list of conditions and the disclaimer below.
41//
42// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
43// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
44// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
45// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
46// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
47// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
48// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
49// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
50// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
51// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
52// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
53//
54// Authors: Gabe Black
55
56////////////////////////////////////////////////////////////////////
57//
58// Decode the one byte opcodes
59//
60
610x1: decode OPCODE_OP_TOP5 {
62 format WarnUnimpl {
63 0x00: decode OPCODE_OP_BOTTOM3 {
64 0x6: decode MODE_SUBMODE {
65 0x0: Inst::UD2();
66 default: push_ES();
67 }
68 0x7: decode MODE_SUBMODE {
69 0x0: Inst::UD2();
70 default: pop_ES();
71 }
72 default: MultiInst::ADD(OPCODE_OP_BOTTOM3,
73 [Eb,Gb], [Ev,Gv],
74 [Gb,Eb], [Gv,Ev],
75 [rAb,Ib], [rAv,Iz]);
76 }
77 0x01: decode OPCODE_OP_BOTTOM3 {
78 0x6: decode MODE_SUBMODE {
79 0x0: Inst::UD2();
80 default: push_CS();
81 }
82 //Any time this is seen, it should generate a two byte opcode
83 0x7: M5InternalError::error(
84 {{"Saw a one byte opcode whose value was 0x0F!"}});
85 default: MultiInst::OR(OPCODE_OP_BOTTOM3,
86 [Eb,Gb], [Ev,Gv],
87 [Gb,Eb], [Gv,Ev],
88 [rAb,Ib], [rAv,Iz]);
89 }
90 0x02: decode OPCODE_OP_BOTTOM3 {
91 0x6: decode MODE_SUBMODE {
92 0x0: Inst::UD2();
93 default: push_SS();
94 }
95 0x7: decode MODE_SUBMODE {
96 0x0: Inst::UD2();
97 default: pop_SS();
98 }
99 default: MultiInst::ADC(OPCODE_OP_BOTTOM3,
100 [Eb,Gb], [Ev,Gv],
101 [Gb,Eb], [Gv,Ev],
102 [rAb,Ib], [rAv,Iz]);
103 }
104 0x03: decode OPCODE_OP_BOTTOM3 {
105 0x6: decode MODE_SUBMODE {
106 0x0: Inst::UD2();
107 default: push_DS();
108 }
109 0x7: decode MODE_SUBMODE {
110 0x0: Inst::UD2();
111 default: pop_DS();
112 }
113 default: MultiInst::SBB(OPCODE_OP_BOTTOM3,
114 [Eb,Gb], [Ev,Gv],
115 [Gb,Eb], [Gv,Ev],
116 [rAb,Ib], [rAv,Iz]);
117 }
118 0x04: decode OPCODE_OP_BOTTOM3 {
119 0x6: M5InternalError::error(
120 {{"Tried to execute the ES segment override prefix!"}});
121 0x7: decode MODE_SUBMODE {
122 0x0: Inst::UD2();
123 default: daa();
124 }
125 default: MultiInst::AND(OPCODE_OP_BOTTOM3,
126 [Eb,Gb], [Ev,Gv],
127 [Gb,Eb], [Gv,Ev],
128 [rAb,Ib], [rAv,Iz]);
129 }
130 0x05: decode OPCODE_OP_BOTTOM3 {
131 0x6: M5InternalError::error(
132 {{"Tried to execute the CS segment override prefix!"}});
133 0x7: das();
134 default: MultiInst::SUB(OPCODE_OP_BOTTOM3,
135 [Eb,Gb], [Ev,Gv],
136 [Gb,Eb], [Gv,Ev],
137 [rAb,Ib], [rAv,Iz]);
138 }
139 0x06: decode OPCODE_OP_BOTTOM3 {
140 0x6: M5InternalError::error(
141 {{"Tried to execute the SS segment override prefix!"}});
142 0x7: decode MODE_SUBMODE {
143 0x0: Inst::UD2();
144 default: aaa();
145 }
146 default: MultiInst::XOR(OPCODE_OP_BOTTOM3,
147 [Eb,Gb], [Ev,Gv],
148 [Gb,Eb], [Gv,Ev],
149 [rAb,Ib], [rAv,Iz]);
150 }
151 0x07: decode OPCODE_OP_BOTTOM3 {
152 0x6: M5InternalError::error(
153 {{"Tried to execute the DS segment override prefix!"}});
154 0x7: decode MODE_SUBMODE {
155 0x0: Inst::UD2();
156 default: aas();
157 }
158 default: MultiInst::CMP(OPCODE_OP_BOTTOM3,
159 [Eb,Gb], [Ev,Gv],
160 [Gb,Eb], [Gv,Ev],
161 [rAb,Ib], [rAv,Iz]);
162 }
163 format Inst {
164 0x08: decode MODE_SUBMODE {
165 0x0: M5InternalError::error (
166 {{"Tried to execute an REX prefix!"}});
167 default: INC(Bv);
168 }
169 0x09: decode MODE_SUBMODE {
170 0x0: M5InternalError::error (
171 {{"Tried to execute an REX prefix!"}});
172 default: DEC(Bv);
173 }
174 0x0A: PUSH(Bv);
175 0x0B: POP(Bv);
176 }
177 0x0C: decode OPCODE_OP_BOTTOM3 {
178 0x0: decode MODE_SUBMODE {
179 0x0: Inst::UD2();
180 default: Inst::PUSHA();
181 }
182 0x1: decode MODE_SUBMODE {
183 0x0: Inst::UD2();
184 default: Inst::POPA();
185 }
186 0x2: decode MODE_SUBMODE {
187 0x0: Inst::UD2();
188 default: bound_Gv_Ma();
189 }
190 0x3: decode MODE_SUBMODE {
191 //The second operand should really be of size "d", but it's
192 //set to "v" in order to have a consistent register size.
193 //This shouldn't affect behavior.
194 0x0: Inst::MOVSXD(Gv,Ev);
195 default: arpl_Ew_Gw();
196 }
197 0x4: M5InternalError::error(
198 {{"Tried to execute the FS segment override prefix!"}});
199 0x5: M5InternalError::error(
200 {{"Tried to execute the GS segment override prefix!"}});
201 0x6: M5InternalError::error(
202 {{"Tried to execute the operand size override prefix!"}});
203 0x7: M5InternalError::error(
204 {{"Tried to execute the DS address size override prefix!"}});
205 }
206 0x0D: decode OPCODE_OP_BOTTOM3 {
207 0x0: Inst::PUSH(Iz);
208 0x1: Inst::IMUL(Gv,Ev,Iz);
209 0x2: Inst::PUSH(Ib);
210 0x3: Inst::IMUL(Gv,Ev,Ib);
211 0x4: ins_Yb_Dx();
212 0x5: ins_Yz_Dx();
213 0x6: outs_Dx_Xb();
214 0x7: outs_Dx_Xz();
215 }
216 format Inst {
217 0x0E: decode OPCODE_OP_BOTTOM3 {
218 0x0: JO(Jb);
219 0x1: JNO(Jb);
220 0x2: JB(Jb);
221 0x3: JNB(Jb);
222 0x4: JZ(Jb);
223 0x5: JNZ(Jb);
224 0x6: JBE(Jb);
225 0x7: JNBE(Jb);
226 }
227 0x0F: decode OPCODE_OP_BOTTOM3 {
228 0x0: JS(Jb);
229 0x1: JNS(Jb);
230 0x2: JP(Jb);
231 0x3: JNP(Jb);
232 0x4: JL(Jb);
233 0x5: JNL(Jb);
234 0x6: JLE(Jb);
235 0x7: JNLE(Jb);
236 }
237 }
238 format Inst {
239 0x10: decode OPCODE_OP_BOTTOM3 {
240 //0x0: group1_Eb_Ib();
241 0x0: decode MODRM_REG {
242 0x0: ADD(Eb,Ib);
243 0x1: OR(Eb,Ib);
244 0x2: ADC(Eb,Ib);
245 0x3: SBB(Eb,Ib);
246 0x4: AND(Eb,Ib);
247 0x5: SUB(Eb,Ib);
248 0x6: XOR(Eb,Ib);
249 0x7: CMP(Eb,Ib);
250 }
251 //0x1: group1_Ev_Iz();
252 0x1: decode MODRM_REG {
253 0x0: ADD(Ev,Iz);
254 0x1: OR(Ev,Iz);
255 0x2: ADC(Ev,Iz);
256 0x3: SBB(Ev,Iz);
257 0x4: AND(Ev,Iz);
258 0x5: SUB(Ev,Iz);
259 0x6: XOR(Ev,Iz);
260 0x7: CMP(Ev,Iz);
261 }
262 0x2: decode MODE_SUBMODE {
263 0x0: UD2();
264 //default: group1_Eb_Ib();
265 default: decode MODRM_REG {
266 0x0: ADD(Eb,Ib);
267 0x1: OR(Eb,Ib);
268 0x2: ADC(Eb,Ib);
269 0x3: SBB(Eb,Ib);
270 0x4: AND(Eb,Ib);
271 0x5: SUB(Eb,Ib);
272 0x6: XOR(Eb,Ib);
273 0x7: CMP(Eb,Ib);
274 }
275 }
276 //0x3: group1_Ev_Ib();
277 0x3: decode MODRM_REG {
278 0x0: ADD(Ev,Ib);
279 0x1: OR(Ev,Ib);
280 0x2: ADC(Ev,Ib);
281 0x3: SBB(Ev,Ib);
282 0x4: AND(Ev,Ib);
283 0x5: SUB(Ev,Ib);
284 0x6: XOR(Ev,Ib);
285 0x7: CMP(Ev,Ib);
286 }
287 0x4: TEST(Eb,Gb);
288 0x5: TEST(Ev,Gv);
289 0x6: XCHG(Eb,Gb);
290 0x7: XCHG(Ev,Gv);
291 }
292 }
293 0x11: decode OPCODE_OP_BOTTOM3 {
294 0x0: Inst::MOV(Eb,Gb);
295 0x1: Inst::MOV(Ev,Gv);
296 0x2: Inst::MOV(Gb,Eb);
297 0x3: Inst::MOV(Gv,Ev);
298 0x4: mov_MwRv_Sw(); //What to do with this one?
299 0x5: Inst::LEA(Gv,M);
300 0x6: mov_Sw_MwRv();
301 0x7: group10_Ev(); //Make sure this is Ev
302 }
303 0x12: decode OPCODE_OP_BOTTOM3 {
304 0x0: Inst::NOP(); //XXX repe makes this a "pause"
305 default: Inst::XCHG(Bv,rAv);
306 }
307 0x13: decode OPCODE_OP_BOTTOM3 {
308 0x0: Inst::CDQE(rAv);
309 0x1: Inst::CQO(rAv,rDv);
310 0x2: decode MODE_SUBMODE {
311 0x0: Inst::UD2();
312 default: call_far_Ap();
313 }
314 0x3: fwait(); //aka wait
315 0x4: pushf_Fv();
316 0x5: popf_Fv();
317 //Both of these should be illegal only if CPUID.AHF64=0,
318 //according to sandpile.org
319 0x6: decode MODE_SUBMODE {
320 0x0: Inst::UD2();
321 default: sahf();
322 }
323 0x7: decode MODE_SUBMODE {
324 0x0: Inst::UD2();
325 default: lahf();
326 }
327 }
328 format Inst {
329 0x14: decode OPCODE_OP_BOTTOM3 {
330 0x0: MOV(rAb, Ob);
331 0x1: MOV(rAv, Ov);
332 0x2: MOV(Ob, rAb);
333 0x3: MOV(Ov, rAv);
334 0x4: StringInst::MOVS(Yb,Xb);
335 0x5: StringInst::MOVS(Yv,Xv);
336 0x6: StringTestInst::CMPS(Yb,Xb);
337 0x7: StringTestInst::CMPS(Yv,Xv);
338 }
339 0x15: decode OPCODE_OP_BOTTOM3 {
340 0x0: TEST(rAb,Ib);
341 0x1: TEST(rAv,Iz);
342 0x2: StringInst::STOS(Yb);
343 0x3: StringInst::STOS(Yv);
344 0x4: StringInst::LODS(Xb);
345 0x5: StringInst::LODS(Xv);
346 0x6: StringTestInst::SCAS(Yb);
347 0x7: StringTestInst::SCAS(Yv);
348 }
349 0x16: MOV(Bb,Ib);
350 0x17: MOV(Bv,Iv);
351 0x18: decode OPCODE_OP_BOTTOM3 {
352 //0x0: group2_Eb_Ib();
353 0x0: decode MODRM_REG {
354 0x0: ROL(Eb,Ib);
355 0x1: ROR(Eb,Ib);
356 0x2: RCL(Eb,Ib);
357 0x3: RCR(Eb,Ib);
358 0x4: SAL(Eb,Ib);
359 0x5: SHR(Eb,Ib);
360 0x6: SAL(Eb,Ib);
361 0x7: SAR(Eb,Ib);
362 }
363 //0x1: group2_Ev_Ib();
364 0x1: decode MODRM_REG {
365 0x0: ROL(Ev,Ib);
366 0x1: ROR(Ev,Ib);
367 0x2: RCL(Ev,Ib);
368 0x3: RCR(Ev,Ib);
369 0x4: SAL(Ev,Ib);
370 0x5: SHR(Ev,Ib);
371 0x6: SAL(Ev,Ib);
372 0x7: SAR(Ev,Ib);
373 }
374 0x2: RET_NEAR(Iw);
375 0x3: RET_NEAR();
376 0x4: decode MODE_SUBMODE {
377 0x0: UD2();
378 default: WarnUnimpl::les_Gz_Mp();
379 }
380 0x5: decode MODE_SUBMODE {
381 0x0: UD2();
382 default: WarnUnimpl::lds_Gz_Mp();
383 }
384 //0x6: group12_Eb_Ib();
385 0x6: decode MODRM_REG {
386 0x0: MOV(Eb,Ib);
387 default: UD2();
388 }
389 //0x7: group12_Ev_Iz();
390 0x7: decode MODRM_REG {
391 0x0: MOV(Ev,Iz);
392 default: UD2();
393 }
394 }
395 }
396 0x19: decode OPCODE_OP_BOTTOM3 {
397 0x0: enter_Iw_Ib();
398 0x1: Inst::LEAVE();
399 0x2: ret_far_Iw();
400 0x3: ret_far();
401 0x4: int3();
402 0x5: int_Ib();
403 0x6: decode MODE_SUBMODE {
404 0x0: Inst::UD2();
405 default: into();
406 }
407 0x7: iret();
408 }
409 0x1A: decode OPCODE_OP_BOTTOM3 {
410 format Inst {
411 //0x0: group2_Eb_1();
412 0x0: decode MODRM_REG {
413 0x0: ROL_1(Eb);
414 0x1: ROR_1(Eb);
415 0x2: RCL_1(Eb);
416 0x3: RCR_1(Eb);
417 0x4: SAL_1(Eb);
418 0x5: SHR_1(Eb);
419 0x6: SAL_1(Eb);
420 0x7: SAR_1(Eb);
421 }
422 //0x1: group2_Ev_1();
423 0x1: decode MODRM_REG {
424 0x0: ROL_1(Ev);
425 0x1: ROR_1(Ev);
426 0x2: RCL_1(Ev);
427 0x3: RCR_1(Ev);
428 0x4: SAL_1(Ev);
429 0x5: SHR_1(Ev);
430 0x6: SAL_1(Ev);
431 0x7: SAR_1(Ev);
432 }
433 //0x2: group2_Eb_Cl();
434 0x2: decode MODRM_REG {
435 0x0: ROL(Eb,rCb);
436 0x1: ROR(Eb,rCb);
437 0x2: RCL(Eb,rCb);
438 0x3: RCR(Eb,rCb);
439 0x4: SAL(Eb,rCb);
440 0x5: SHR(Eb,rCb);
441 0x6: SAL(Eb,rCb);
442 0x7: SAR(Eb,rCb);
443 }
444 //The second operand should have size "b", but to have
445 //consistent register sizes it's "v". This shouldn't have
446 //any affect on functionality.
447 //0x3: group2_Ev_Cl();
448 0x3: decode MODRM_REG {
449 0x0: ROL(Ev,rCv);
450 0x1: ROR(Ev,rCv);
451 0x2: RCL(Ev,rCv);
452 0x3: RCR(Ev,rCv);
453 0x4: SAL(Ev,rCv);
454 0x5: SHR(Ev,rCv);
455 0x6: SAL(Ev,rCv);
456 0x7: SAR(Ev,rCv);
457 }
458 }
459 0x4: decode MODE_SUBMODE {
460 0x0: Inst::UD2();
461 default: aam_Ib();
462 }
463 0x5: decode MODE_SUBMODE {
464 0x0: Inst::UD2();
465 default: aad_Ib();
466 }
467 0x6: decode MODE_SUBMODE {
468 0x0: Inst::UD2();
469 default: salc();
470 }
471 0x7: xlat();
472 }
473 ##include "x87.isa"
474 0x1C: decode OPCODE_OP_BOTTOM3 {
475 0x0: Inst::LOOPNE(Jb);
476 0x1: Inst::LOOPE(Jb);
477 0x2: Inst::LOOP(Jb);
478 0x3: Inst::JRCX(Jb);
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