one_byte_opcodes.isa revision 4519:f8da6b45573f 
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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            0x4: ADD();
65            0x5: ADD();
66            0x6: push_ES();
67            0x7: pop_ES();
68            default: ADD();
69        }
70        0x01: decode OPCODE_OP_BOTTOM3 {
71            0x0: or_Eb_Gb();
72            0x1: or_Ev_Gv();
73            0x2: or_Gb_Eb();
74            0x3: or_Gv_Ev();
75            0x4: or_Al_Ib();
76            0x5: or_rAX_Iz();
77            0x6: push_CS();
78            //Any time this is seen, it should generate a two byte opcode
79            0x7: M5InternalError::error(
80                {{"Saw a one byte opcode whose value was 0x0F!"}});
81        }
82        0x02: decode OPCODE_OP_BOTTOM3 {
83            0x0: adc_Eb_Gb();
84            0x1: adc_Ev_Gv();
85            0x2: adc_Gb_Eb();
86            0x3: adc_Gv_Ev();
87            0x4: adc_Al_Ib();
88            0x5: adc_rAX_Iz();
89            0x6: push_SS();
90            0x7: pop_SS();
91        }
92        0x03: decode OPCODE_OP_BOTTOM3 {
93            0x0: sbb_Eb_Gb();
94            0x1: sbb_Ev_Gv();
95            0x2: sbb_Gb_Eb();
96            0x3: sbb_Gv_Ev();
97            0x4: sbb_Al_Ib();
98            0x5: sbb_rAX_Iz();
99            0x6: push_DS();
100            0x7: pop_DS();
101        }
102        0x04: decode OPCODE_OP_BOTTOM3 {
103            0x0: and_Eb_Gb();
104            0x1: and_Ev_Gv();
105            0x2: and_Gb_Eb();
106            0x3: and_Gv_Ev();
107            0x4: and_Al_Ib();
108            0x5: and_rAX_Iz();
109            0x6: M5InternalError::error(
110                {{"Tried to execute the ES segment override prefix!"}});
111            0x7: daa();
112        }
113        0x05: decode OPCODE_OP_BOTTOM3 {
114            0x0: sub_Eb_Gb();
115            0x1: sub_Ev_Gv();
116            0x2: sub_Gb_Eb();
117            0x3: sub_Gv_Ev();
118            0x4: sub_Al_Ib();
119            0x5: sub_rAX_Iz();
120            0x6: M5InternalError::error(
121                {{"Tried to execute the CS segment override prefix!"}});
122            0x7: das();
123        }
124        0x06: decode OPCODE_OP_BOTTOM3 {
125            0x4: Inst::XOR(ALIb);
126            0x5: Inst::XOR(rAX,Iz);
127            0x6: M5InternalError::error(
128                {{"Tried to execute the SS segment override prefix!"}});
129            0x7: aaa();
130            default: MultiInst::XOR(EbGb, EvGv, GbEb, GvEv);
131        }
132        0x07: decode OPCODE_OP_BOTTOM3 {
133            0x0: cmp_Eb_Gb();
134            0x1: cmp_Ev_Gv();
135            0x2: cmp_Gb_Eb();
136            0x3: cmp_Gv_Ev();
137            0x4: cmp_Al_Ib();
138            0x5: cmp_rAX_Iz();
139            0x6: M5InternalError::error(
140                {{"Tried to execute the DS segment override prefix!"}});
141            0x7: aas();
142        }
143        0x08: decode OPCODE_OP_BOTTOM3 {
144            0x0: inc_eAX();
145            0x1: inc_eCX();
146            0x2: inc_eDX();
147            0x3: inc_eBX();
148            0x4: inc_eSP();
149            0x5: inc_eBP();
150            0x6: inc_eSI();
151            0x7: inc_eDI();
152        }
153        0x09: decode OPCODE_OP_BOTTOM3 {
154            0x0: dec_eAX();
155            0x1: dec_eCX();
156            0x2: dec_eDX();
157            0x3: dec_eBX();
158            0x4: dec_eSP();
159            0x5: dec_eBP();
160            0x6: dec_eSI();
161            0x7: dec_eDI();
162        }
163        0x0A: decode OPCODE_OP_BOTTOM3 {
164            0x0: push_rAX();
165            0x1: push_rCX();
166            0x2: push_rDX();
167            0x3: push_rBX();
168            0x4: push_rSP();
169            0x5: push_rBP();
170            0x6: push_rSI();
171            0x7: push_rDI();
172        }
173        0x0B: decode OPCODE_OP_BOTTOM3 {
174            0x0: pop_rAX();
175            0x1: pop_rCX();
176            0x2: pop_rDX();
177            0x3: pop_rBX();
178            0x4: pop_rSP();
179            0x5: pop_rBP();
180            0x6: pop_rSI();
181            0x7: pop_rDI();
182        }
183        0x0C: decode OPCODE_OP_BOTTOM3 {
184            0x0: pusha();
185            0x1: popa();
186            0x2: bound_Gv_Ma();
187            0x3: arpl_Ew_Gw();
188            0x4: M5InternalError::error(
189                {{"Tried to execute the FS segment override prefix!"}});
190            0x5: M5InternalError::error(
191                {{"Tried to execute the GS segment override prefix!"}});
192            0x6: M5InternalError::error(
193                {{"Tried to execute the operand size override prefix!"}});
194            0x7: M5InternalError::error(
195                {{"Tried to execute the DS address size override prefix!"}});
196        }
197        0x0D: decode OPCODE_OP_BOTTOM3 {
198            0x0: push_Iz();
199            0x1: imul_Gv_Ev_Iz();
200            0x2: push_Ib();
201            0x3: imul_Gv_Ev_Ib();
202            0x4: ins_Yb_Dx();
203            0x5: ins_Yz_Dx();
204            0x6: outs_Dx_Xb();
205            0x7: outs_Dx_Xz();
206        }
207        0x0E: decode OPCODE_OP_BOTTOM3 {
208            0x0: jo_Jb();
209            0x1: jno_Jb();
210            0x2: jb_Jb();
211            0x3: jnb_Jb();
212            0x4: jz_Jb();
213            0x5: jnz_Jb();
214            0x6: jbe_Jb();
215            0x7: jnbe_Jb();
216        }
217        0x0F: decode OPCODE_OP_BOTTOM3 {
218            0x0: js_Jb();
219            0x1: jns_Jb();
220            0x2: jp_Jb();
221            0x3: jnp_Jb();
222            0x4: jl_Jb();
223            0x5: jnl_Jb();
224            0x6: jle_Jb();
225            0x7: jnke_Jb();
226        }
227        0x10: decode OPCODE_OP_BOTTOM3 {
228            0x0: group1_Eb_Ib();
229            0x1: group1_Ev_Iz();
230            0x2: group1_Eb_Ib();
231            0x3: group1_Ev_Ib();
232            0x4: test_Eb_Gb();
233            0x5: test_Ev_Gv();
234            0x6: xchg_Eb_Gb();
235            0x7: xchg_Ev_Gv();
236        }
237        0x11: decode OPCODE_OP_BOTTOM3 {
238            0x0: MOV();
239            0x1: MOV();
240            0x2: MOV();
241            0x3: MOV();
242            0x4: mov_MwRv_Sw(); //What to do with this one?
243            0x5: lea_Gv_M();
244            0x6: mov_Sw_MwRv();
245            0x7: group10_Ev(); //Make sure this is Ev
246        }
247        0x12: decode OPCODE_OP_BOTTOM3 {
248            0x0: nop_or_pause(); //Check for repe prefix
249            0x1: xchg_rCX_rAX();
250            0x2: xchg_rDX_rAX();
251            0x3: xchg_rVX_rAX();
252            0x4: xchg_rSP_rAX();
253            0x5: xchg_rBP_rAX();
254            0x6: xchg_rSI_rAX();
255            0x7: xchg_rDI_rAX();
256        }
257        0x13: decode OPCODE_OP_BOTTOM3 {
258            0x0: cbw_or_cwde_or_cdqe_rAX();
259            0x1: cwd_or_cdq_or_cqo_rAX_rDX();
260            0x2: call_Ap();
261            0x3: fwait(); //aka wait
262            0x4: pushf_Fv();
263            0x5: popf_Fv();
264            0x6: sahf();
265            0x7: lahf();
266        }
267        0x14: decode OPCODE_OP_BOTTOM3 {
268            0x0: mov_Al_Ob();
269            0x1: mov_rAX_Ov();
270            0x2: mov_Ob_Al();
271            0x3: mov_Ov_rAX();
272            0x4: movs_Yb_Xb();
273            0x5: movs_Yv_Xv();
274            0x6: cmps_Yb_Xb();
275            0x7: cmps_Yv_Xv();
276        }
277        0x15: decode OPCODE_OP_BOTTOM3 {
278            0x0: test_Al_Ib();
279            0x1: test_rAX_Iz();
280            0x2: stos_Yb_Al();
281            0x3: stos_Yv_rAX();
282            0x4: lods_Al_Xb();
283            0x5: lods_rAX_Xv();
284            0x6: scas_Yb_Al();
285            0x7: scas_Yv_rAX();
286        }
287        0x16: decode OPCODE_OP_BOTTOM3 {
288            0x0: mov_Al_Ib();
289            0x1: mov_Cl_Ib();
290            0x2: mov_Dl_Ib();
291            0x3: mov_Bl_Ib();
292            0x4: mov_Ah_Ib();
293            0x5: mov_Ch_Ib();
294            0x6: mov_Dh_Ib();
295            0x7: mov_Bh_Ib();
296        }
297        0x17: decode OPCODE_OP_BOTTOM3 {
298            0x0: mov_rAX_Iv();
299            0x1: mov_rCX_Iv();
300            0x2: mov_rDX_Iv();
301            0x3: mov_rBX_Iv();
302            0x4: mov_rSP_Iv();
303            0x5: mov_rBP_Iv();
304            0x6: mov_rSI_Iv();
305            0x7: mov_rDI_Iv();
306        }
307        0x18: decode OPCODE_OP_BOTTOM3 {
308            0x0: group2_Eb_Ib();
309            0x1: group2_Ev_Ib();
310            0x2: ret_near_Iw();
311            0x3: ret_near();
312            0x4: les_Gz_Mp();
313            0x5: lds_Gz_Mp();
314            0x6: group12_Eb_Ib();
315            0x7: group12_Ev_Iz();
316        }
317        0x19: decode OPCODE_OP_BOTTOM3 {
318            0x0: enter_Iw_Ib();
319            0x1: leave();
320            0x2: ret_far_Iw();
321            0x3: ret_far();
322            0x4: int3();
323            0x5: int_Ib();
324            0x6: into();
325            0x7: iret();
326        }
327        0x1A: decode OPCODE_OP_BOTTOM3 {
328            0x0: group2_Eb_1();
329            0x1: group2_Ev_1();
330            0x2: group2_Eb_Cl();
331            0x3: group2_Ev_Cl();
332            0x4: aam_Ib();
333            0x5: aad_Ib();
334            0x6: salc();
335            0x7: xlat();
336        }
337        0x1B: decode OPCODE_OP_BOTTOM3 {
338            0x0: esc0();
339            0x1: esc1();
340            0x2: esc2();
341            0x3: esc3();
342            0x4: esc4();
343            0x5: esc5();
344            0x6: esc6();
345            0x7: esc7();
346        }
347        0x1C: decode OPCODE_OP_BOTTOM3 {
348            0x0: loopne_Jb();
349            0x1: loope_Jb();
350            0x2: loop_Jb();
351            0x3: jcxz_or_jecx_or_jrcx();
352            0x4: in_Al_Ib();
353            0x5: in_eAX_Ib();
354            0x6: out_Ib_Al();
355            0x7: out_Ib_eAX();
356        }
357        0x1D: decode OPCODE_OP_BOTTOM3 {
358            0x0: call_Jz();
359            0x1: jmp_Jz();
360            0x2: jmp_Ap();
361            0x3: jmp_Jb();
362            0x4: in_Al_Dx();
363            0x5: in_eAX_Dx();
364            0x6: out_Dx_Al();
365            0x7: out_Dx_eAX();
366        }
367        0x1E: decode OPCODE_OP_BOTTOM3 {
368            0x0: M5InternalError::error(
369                {{"Tried to execute the lock prefix!"}});
370            0x1: int1();
371            0x2: M5InternalError::error(
372                {{"Tried to execute the repne prefix!"}});
373            0x3: M5InternalError::error(
374                {{"Tried to execute the rep/repe prefix!"}});
375            0x4: hlt();
376            0x5: cmc();
377            0x6: group3_Eb();
378            0x7: group3_Ev();
379        }
380        0x1F: decode OPCODE_OP_BOTTOM3 {
381            0x0: clc();
382            0x1: stc();
383            0x2: cli();
384            0x3: sti();
385            0x4: cld();
386            0x5: std();
387            0x6: group4();
388            0x7: group5();
389        }
390    }
391    default: FailUnimpl::oneByteOps();
392}
393