one_byte_opcodes.isa revision 4527:323c8068b597 
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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(rAl,Ib);
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(OPCODE_OP_BOTTOM3,
131                                    [Eb,Gb], [Ev,Gv],
132                                    [Gb,Eb], [Gv,Ev]);
133        }
134        0x07: decode OPCODE_OP_BOTTOM3 {
135            0x0: cmp_Eb_Gb();
136            0x1: cmp_Ev_Gv();
137            0x2: cmp_Gb_Eb();
138            0x3: cmp_Gv_Ev();
139            0x4: cmp_Al_Ib();
140            0x5: cmp_rAX_Iz();
141            0x6: M5InternalError::error(
142                {{"Tried to execute the DS segment override prefix!"}});
143            0x7: aas();
144        }
145        0x08: decode OPCODE_OP_BOTTOM3 {
146            0x0: inc_eAX();
147            0x1: inc_eCX();
148            0x2: inc_eDX();
149            0x3: inc_eBX();
150            0x4: inc_eSP();
151            0x5: inc_eBP();
152            0x6: inc_eSI();
153            0x7: inc_eDI();
154        }
155        0x09: decode OPCODE_OP_BOTTOM3 {
156            0x0: dec_eAX();
157            0x1: dec_eCX();
158            0x2: dec_eDX();
159            0x3: dec_eBX();
160            0x4: dec_eSP();
161            0x5: dec_eBP();
162            0x6: dec_eSI();
163            0x7: dec_eDI();
164        }
165        0x0A: decode OPCODE_OP_BOTTOM3 {
166            0x0: push_rAX();
167            0x1: push_rCX();
168            0x2: push_rDX();
169            0x3: push_rBX();
170            0x4: push_rSP();
171            0x5: push_rBP();
172            0x6: push_rSI();
173            0x7: push_rDI();
174        }
175        0x0B: decode OPCODE_OP_BOTTOM3 {
176            0x0: pop_rAX();
177            0x1: pop_rCX();
178            0x2: pop_rDX();
179            0x3: pop_rBX();
180            0x4: pop_rSP();
181            0x5: pop_rBP();
182            0x6: pop_rSI();
183            0x7: pop_rDI();
184        }
185        0x0C: decode OPCODE_OP_BOTTOM3 {
186            0x0: pusha();
187            0x1: popa();
188            0x2: bound_Gv_Ma();
189            0x3: arpl_Ew_Gw();
190            0x4: M5InternalError::error(
191                {{"Tried to execute the FS segment override prefix!"}});
192            0x5: M5InternalError::error(
193                {{"Tried to execute the GS segment override prefix!"}});
194            0x6: M5InternalError::error(
195                {{"Tried to execute the operand size override prefix!"}});
196            0x7: M5InternalError::error(
197                {{"Tried to execute the DS address size override prefix!"}});
198        }
199        0x0D: decode OPCODE_OP_BOTTOM3 {
200            0x0: push_Iz();
201            0x1: imul_Gv_Ev_Iz();
202            0x2: push_Ib();
203            0x3: imul_Gv_Ev_Ib();
204            0x4: ins_Yb_Dx();
205            0x5: ins_Yz_Dx();
206            0x6: outs_Dx_Xb();
207            0x7: outs_Dx_Xz();
208        }
209        0x0E: decode OPCODE_OP_BOTTOM3 {
210            0x0: jo_Jb();
211            0x1: jno_Jb();
212            0x2: jb_Jb();
213            0x3: jnb_Jb();
214            0x4: jz_Jb();
215            0x5: jnz_Jb();
216            0x6: jbe_Jb();
217            0x7: jnbe_Jb();
218        }
219        0x0F: decode OPCODE_OP_BOTTOM3 {
220            0x0: js_Jb();
221            0x1: jns_Jb();
222            0x2: jp_Jb();
223            0x3: jnp_Jb();
224            0x4: jl_Jb();
225            0x5: jnl_Jb();
226            0x6: jle_Jb();
227            0x7: jnke_Jb();
228        }
229        0x10: decode OPCODE_OP_BOTTOM3 {
230            0x0: group1_Eb_Ib();
231            0x1: group1_Ev_Iz();
232            0x2: group1_Eb_Ib();
233            0x3: group1_Ev_Ib();
234            0x4: test_Eb_Gb();
235            0x5: test_Ev_Gv();
236            0x6: xchg_Eb_Gb();
237            0x7: xchg_Ev_Gv();
238        }
239        0x11: decode OPCODE_OP_BOTTOM3 {
240            0x0: MOV();
241            0x1: MOV();
242            0x2: MOV();
243            0x3: MOV();
244            0x4: mov_MwRv_Sw(); //What to do with this one?
245            0x5: lea_Gv_M();
246            0x6: mov_Sw_MwRv();
247            0x7: group10_Ev(); //Make sure this is Ev
248        }
249        0x12: decode OPCODE_OP_BOTTOM3 {
250            0x0: nop_or_pause(); //Check for repe prefix
251            0x1: xchg_rCX_rAX();
252            0x2: xchg_rDX_rAX();
253            0x3: xchg_rVX_rAX();
254            0x4: xchg_rSP_rAX();
255            0x5: xchg_rBP_rAX();
256            0x6: xchg_rSI_rAX();
257            0x7: xchg_rDI_rAX();
258        }
259        0x13: decode OPCODE_OP_BOTTOM3 {
260            0x0: cbw_or_cwde_or_cdqe_rAX();
261            0x1: cwd_or_cdq_or_cqo_rAX_rDX();
262            0x2: call_Ap();
263            0x3: fwait(); //aka wait
264            0x4: pushf_Fv();
265            0x5: popf_Fv();
266            0x6: sahf();
267            0x7: lahf();
268        }
269        0x14: decode OPCODE_OP_BOTTOM3 {
270            0x0: mov_Al_Ob();
271            0x1: mov_rAX_Ov();
272            0x2: mov_Ob_Al();
273            0x3: mov_Ov_rAX();
274            0x4: movs_Yb_Xb();
275            0x5: movs_Yv_Xv();
276            0x6: cmps_Yb_Xb();
277            0x7: cmps_Yv_Xv();
278        }
279        0x15: decode OPCODE_OP_BOTTOM3 {
280            0x0: test_Al_Ib();
281            0x1: test_rAX_Iz();
282            0x2: stos_Yb_Al();
283            0x3: stos_Yv_rAX();
284            0x4: lods_Al_Xb();
285            0x5: lods_rAX_Xv();
286            0x6: scas_Yb_Al();
287            0x7: scas_Yv_rAX();
288        }
289        0x16: decode OPCODE_OP_BOTTOM3 {
290            0x0: mov_Al_Ib();
291            0x1: mov_Cl_Ib();
292            0x2: mov_Dl_Ib();
293            0x3: mov_Bl_Ib();
294            0x4: mov_Ah_Ib();
295            0x5: mov_Ch_Ib();
296            0x6: mov_Dh_Ib();
297            0x7: mov_Bh_Ib();
298        }
299        0x17: decode OPCODE_OP_BOTTOM3 {
300            0x0: mov_rAX_Iv();
301            0x1: mov_rCX_Iv();
302            0x2: mov_rDX_Iv();
303            0x3: mov_rBX_Iv();
304            0x4: mov_rSP_Iv();
305            0x5: mov_rBP_Iv();
306            0x6: mov_rSI_Iv();
307            0x7: mov_rDI_Iv();
308        }
309        0x18: decode OPCODE_OP_BOTTOM3 {
310            0x0: group2_Eb_Ib();
311            0x1: group2_Ev_Ib();
312            0x2: ret_near_Iw();
313            0x3: ret_near();
314            0x4: les_Gz_Mp();
315            0x5: lds_Gz_Mp();
316            0x6: group12_Eb_Ib();
317            0x7: group12_Ev_Iz();
318        }
319        0x19: decode OPCODE_OP_BOTTOM3 {
320            0x0: enter_Iw_Ib();
321            0x1: leave();
322            0x2: ret_far_Iw();
323            0x3: ret_far();
324            0x4: int3();
325            0x5: int_Ib();
326            0x6: into();
327            0x7: iret();
328        }
329        0x1A: decode OPCODE_OP_BOTTOM3 {
330            0x0: group2_Eb_1();
331            0x1: group2_Ev_1();
332            0x2: group2_Eb_Cl();
333            0x3: group2_Ev_Cl();
334            0x4: aam_Ib();
335            0x5: aad_Ib();
336            0x6: salc();
337            0x7: xlat();
338        }
339        0x1B: decode OPCODE_OP_BOTTOM3 {
340            0x0: esc0();
341            0x1: esc1();
342            0x2: esc2();
343            0x3: esc3();
344            0x4: esc4();
345            0x5: esc5();
346            0x6: esc6();
347            0x7: esc7();
348        }
349        0x1C: decode OPCODE_OP_BOTTOM3 {
350            0x0: loopne_Jb();
351            0x1: loope_Jb();
352            0x2: loop_Jb();
353            0x3: jcxz_or_jecx_or_jrcx();
354            0x4: in_Al_Ib();
355            0x5: in_eAX_Ib();
356            0x6: out_Ib_Al();
357            0x7: out_Ib_eAX();
358        }
359        0x1D: decode OPCODE_OP_BOTTOM3 {
360            0x0: call_Jz();
361            0x1: jmp_Jz();
362            0x2: jmp_Ap();
363            0x3: jmp_Jb();
364            0x4: in_Al_Dx();
365            0x5: in_eAX_Dx();
366            0x6: out_Dx_Al();
367            0x7: out_Dx_eAX();
368        }
369        0x1E: decode OPCODE_OP_BOTTOM3 {
370            0x0: M5InternalError::error(
371                {{"Tried to execute the lock prefix!"}});
372            0x1: int1();
373            0x2: M5InternalError::error(
374                {{"Tried to execute the repne prefix!"}});
375            0x3: M5InternalError::error(
376                {{"Tried to execute the rep/repe prefix!"}});
377            0x4: hlt();
378            0x5: cmc();
379            0x6: group3_Eb();
380            0x7: group3_Ev();
381        }
382        0x1F: decode OPCODE_OP_BOTTOM3 {
383            0x0: clc();
384            0x1: stc();
385            0x2: cli();
386            0x3: sti();
387            0x4: cld();
388            0x5: std();
389            0x6: group4();
390            0x7: group5();
391        }
392    }
393    default: FailUnimpl::oneByteOps();
394}
395