one_byte_opcodes.isa revision 4323:13ca4002d2ac 
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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: TaggedOp::add({{AddI %0 %0}}, [rAl]);
65            0x5: TaggedOp::add({{AddI %0 %0}}, [rAx]);
66            0x6: push_ES();
67            0x7: pop_ES();
68            default: MultiOp::add(
69                {{Add %0 %0 %1}},
70                OPCODE_OP_BOTTOM3,
71                [[Eb,Gb],[Ev,Gv],
72                 [Gb,Eb],[Gv,Ev]]);
73        }
74        0x01: decode OPCODE_OP_BOTTOM3 {
75            0x0: or_Eb_Gb();
76            0x1: or_Ev_Gv();
77            0x2: or_Gb_Eb();
78            0x3: or_Gv_Ev();
79            0x4: or_Al_Ib();
80            0x5: or_rAX_Iz();
81            0x6: push_CS();
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        }
86        0x02: decode OPCODE_OP_BOTTOM3 {
87            0x0: adc_Eb_Gb();
88            0x1: adc_Ev_Gv();
89            0x2: adc_Gb_Eb();
90            0x3: adc_Gv_Ev();
91            0x4: adc_Al_Ib();
92            0x5: adc_rAX_Iz();
93            0x6: push_SS();
94            0x7: pop_SS();
95        }
96        0x03: decode OPCODE_OP_BOTTOM3 {
97            0x0: sbb_Eb_Gb();
98            0x1: sbb_Ev_Gv();
99            0x2: sbb_Gb_Eb();
100            0x3: sbb_Gv_Ev();
101            0x4: sbb_Al_Ib();
102            0x5: sbb_rAX_Iz();
103            0x6: push_DS();
104            0x7: pop_DS();
105        }
106        0x04: decode OPCODE_OP_BOTTOM3 {
107            0x0: and_Eb_Gb();
108            0x1: and_Ev_Gv();
109            0x2: and_Gb_Eb();
110            0x3: and_Gv_Ev();
111            0x4: and_Al_Ib();
112            0x5: and_rAX_Iz();
113            0x6: M5InternalError::error(
114                {{"Tried to execute the ES segment override prefix!"}});
115            0x7: daa();
116        }
117        0x05: decode OPCODE_OP_BOTTOM3 {
118            0x0: sub_Eb_Gb();
119            0x1: sub_Ev_Gv();
120            0x2: sub_Gb_Eb();
121            0x3: sub_Gv_Ev();
122            0x4: sub_Al_Ib();
123            0x5: sub_rAX_Iz();
124            0x6: M5InternalError::error(
125                {{"Tried to execute the CS segment override prefix!"}});
126            0x7: das();
127        }
128        0x06: decode OPCODE_OP_BOTTOM3 {
129            0x4: TaggedOp::xor({{XorI %0 %0}}, [rAl]);
130            0x5: TaggedOp::xor({{XorI %0 %0}}, [rAx]);
131            0x6: M5InternalError::error(
132                {{"Tried to execute the SS segment override prefix!"}});
133            0x7: aaa();
134            default: MultiOp::xor(
135                {{Xor %0 %0 %1}},
136                OPCODE_OP_BOTTOM3,
137                [[Eb,Gb],[Ev,Gv],
138                 [Gb,Eb],[Gv,Ev]]);
139        }
140        0x07: decode OPCODE_OP_BOTTOM3 {
141            0x0: cmp_Eb_Gb();
142            0x1: cmp_Ev_Gv();
143            0x2: cmp_Gb_Eb();
144            0x3: cmp_Gv_Ev();
145            0x4: cmp_Al_Ib();
146            0x5: cmp_rAX_Iz();
147            0x6: M5InternalError::error(
148                {{"Tried to execute the DS segment override prefix!"}});
149            0x7: aas();
150        }
151        0x08: decode OPCODE_OP_BOTTOM3 {
152            0x0: inc_eAX();
153            0x1: inc_eCX();
154            0x2: inc_eDX();
155            0x3: inc_eBX();
156            0x4: inc_eSP();
157            0x5: inc_eBP();
158            0x6: inc_eSI();
159            0x7: inc_eDI();
160        }
161        0x09: decode OPCODE_OP_BOTTOM3 {
162            0x0: dec_eAX();
163            0x1: dec_eCX();
164            0x2: dec_eDX();
165            0x3: dec_eBX();
166            0x4: dec_eSP();
167            0x5: dec_eBP();
168            0x6: dec_eSI();
169            0x7: dec_eDI();
170        }
171        0x0A: decode OPCODE_OP_BOTTOM3 {
172            0x0: push_rAX();
173            0x1: push_rCX();
174            0x2: push_rDX();
175            0x3: push_rBX();
176            0x4: push_rSP();
177            0x5: push_rBP();
178            0x6: push_rSI();
179            0x7: push_rDI();
180        }
181        0x0B: decode OPCODE_OP_BOTTOM3 {
182            0x0: pop_rAX();
183            0x1: pop_rCX();
184            0x2: pop_rDX();
185            0x3: pop_rBX();
186            0x4: pop_rSP();
187            0x5: pop_rBP();
188            0x6: pop_rSI();
189            0x7: pop_rDI();
190        }
191        0x0C: decode OPCODE_OP_BOTTOM3 {
192            0x0: pusha();
193            0x1: popa();
194            0x2: bound_Gv_Ma();
195            0x3: arpl_Ew_Gw();
196            0x4: M5InternalError::error(
197                {{"Tried to execute the FS segment override prefix!"}});
198            0x5: M5InternalError::error(
199                {{"Tried to execute the GS segment override prefix!"}});
200            0x6: M5InternalError::error(
201                {{"Tried to execute the operand size override prefix!"}});
202            0x7: M5InternalError::error(
203                {{"Tried to execute the DS address size override prefix!"}});
204        }
205        0x0D: decode OPCODE_OP_BOTTOM3 {
206            0x0: push_Iz();
207            0x1: imul_Gv_Ev_Iz();
208            0x2: push_Ib();
209            0x3: imul_Gv_Ev_Ib();
210            0x4: ins_Yb_Dx();
211            0x5: ins_Yz_Dx();
212            0x6: outs_Dx_Xb();
213            0x7: outs_Dx_Xz();
214        }
215        0x0E: decode OPCODE_OP_BOTTOM3 {
216            0x0: jo_Jb();
217            0x1: jno_Jb();
218            0x2: jb_Jb();
219            0x3: jnb_Jb();
220            0x4: jz_Jb();
221            0x5: jnz_Jb();
222            0x6: jbe_Jb();
223            0x7: jnbe_Jb();
224        }
225        0x0F: decode OPCODE_OP_BOTTOM3 {
226            0x0: js_Jb();
227            0x1: jns_Jb();
228            0x2: jp_Jb();
229            0x3: jnp_Jb();
230            0x4: jl_Jb();
231            0x5: jnl_Jb();
232            0x6: jle_Jb();
233            0x7: jnke_Jb();
234        }
235        0x10: decode OPCODE_OP_BOTTOM3 {
236            0x0: group1_Eb_Ib();
237            0x1: group1_Ev_Iz();
238            0x2: group1_Eb_Ib();
239            0x3: group1_Ev_Ib();
240            0x4: test_Eb_Gb();
241            0x5: test_Ev_Gv();
242            0x6: xchg_Eb_Gb();
243            0x7: xchg_Ev_Gv();
244        }
245        0x11: decode OPCODE_OP_BOTTOM3 {
246            0x0: mov_Eb_Gb();
247            0x1: mov_Ev_Gv();
248            0x2: mov_Gb_Eb();
249            0x3: mov_Gv_Ev();
250            0x4: mov_MwRv_Sw();
251            0x5: lea_Gv_M();
252            0x6: mov_Sw_MwRv();
253            0x7: group10_Ev(); //Make sure this is Ev
254        }
255        0x12: decode OPCODE_OP_BOTTOM3 {
256            0x0: nop_or_pause(); //Check for repe prefix
257            0x1: xchg_rCX_rAX();
258            0x2: xchg_rDX_rAX();
259            0x3: xchg_rVX_rAX();
260            0x4: xchg_rSP_rAX();
261            0x5: xchg_rBP_rAX();
262            0x6: xchg_rSI_rAX();
263            0x7: xchg_rDI_rAX();
264        }
265        0x13: decode OPCODE_OP_BOTTOM3 {
266            0x0: cbw_or_cwde_or_cdqe_rAX();
267            0x1: cwd_or_cdq_or_cqo_rAX_rDX();
268            0x2: call_Ap();
269            0x3: fwait(); //aka wait
270            0x4: pushf_Fv();
271            0x5: popf_Fv();
272            0x6: sahf();
273            0x7: lahf();
274        }
275        0x14: decode OPCODE_OP_BOTTOM3 {
276            0x0: mov_Al_Ob();
277            0x1: mov_rAX_Ov();
278            0x2: mov_Ob_Al();
279            0x3: mov_Ov_rAX();
280            0x4: movs_Yb_Xb();
281            0x5: movs_Yv_Xv();
282            0x6: cmps_Yb_Xb();
283            0x7: cmps_Yv_Xv();
284        }
285        0x15: decode OPCODE_OP_BOTTOM3 {
286            0x0: test_Al_Ib();
287            0x1: test_rAX_Iz();
288            0x2: stos_Yb_Al();
289            0x3: stos_Yv_rAX();
290            0x4: lods_Al_Xb();
291            0x5: lods_rAX_Xv();
292            0x6: scas_Yb_Al();
293            0x7: scas_Yv_rAX();
294        }
295        0x16: decode OPCODE_OP_BOTTOM3 {
296            0x0: mov_Al_Ib();
297            0x1: mov_Cl_Ib();
298            0x2: mov_Dl_Ib();
299            0x3: mov_Bl_Ib();
300            0x4: mov_Ah_Ib();
301            0x5: mov_Ch_Ib();
302            0x6: mov_Dh_Ib();
303            0x7: mov_Bh_Ib();
304        }
305        0x17: decode OPCODE_OP_BOTTOM3 {
306            0x0: mov_rAX_Iv();
307            0x1: mov_rCX_Iv();
308            0x2: mov_rDX_Iv();
309            0x3: mov_rBX_Iv();
310            0x4: mov_rSP_Iv();
311            0x5: mov_rBP_Iv();
312            0x6: mov_rSI_Iv();
313            0x7: mov_rDI_Iv();
314        }
315        0x18: decode OPCODE_OP_BOTTOM3 {
316            0x0: group2_Eb_Ib();
317            0x1: group2_Ev_Ib();
318            0x2: ret_near_Iw();
319            0x3: ret_near();
320            0x4: les_Gz_Mp();
321            0x5: lds_Gz_Mp();
322            0x6: group12_Eb_Ib();
323            0x7: group12_Ev_Iz();
324        }
325        0x19: decode OPCODE_OP_BOTTOM3 {
326            0x0: enter_Iw_Ib();
327            0x1: leave();
328            0x2: ret_far_Iw();
329            0x3: ret_far();
330            0x4: int3();
331            0x5: int_Ib();
332            0x6: into();
333            0x7: iret();
334        }
335        0x1A: decode OPCODE_OP_BOTTOM3 {
336            0x0: group2_Eb_1();
337            0x1: group2_Ev_1();
338            0x2: group2_Eb_Cl();
339            0x3: group2_Ev_Cl();
340            0x4: aam_Ib();
341            0x5: aad_Ib();
342            0x6: salc();
343            0x7: xlat();
344        }
345        0x1B: decode OPCODE_OP_BOTTOM3 {
346            0x0: esc0();
347            0x1: esc1();
348            0x2: esc2();
349            0x3: esc3();
350            0x4: esc4();
351            0x5: esc5();
352            0x6: esc6();
353            0x7: esc7();
354        }
355        0x1C: decode OPCODE_OP_BOTTOM3 {
356            0x0: loopne_Jb();
357            0x1: loope_Jb();
358            0x2: loop_Jb();
359            0x3: jcxz_or_jecx_or_jrcx();
360            0x4: in_Al_Ib();
361            0x5: in_eAX_Ib();
362            0x6: out_Ib_Al();
363            0x7: out_Ib_eAX();
364        }
365        0x1D: decode OPCODE_OP_BOTTOM3 {
366            0x0: call_Jz();
367            0x1: jmp_Jz();
368            0x2: jmp_Ap();
369            0x3: jmp_Jb();
370            0x4: in_Al_Dx();
371            0x5: in_eAX_Dx();
372            0x6: out_Dx_Al();
373            0x7: out_Dx_eAX();
374        }
375        0x1E: decode OPCODE_OP_BOTTOM3 {
376            0x0: M5InternalError::error(
377                {{"Tried to execute the lock prefix!"}});
378            0x1: int1();
379            0x2: M5InternalError::error(
380                {{"Tried to execute the repne prefix!"}});
381            0x3: M5InternalError::error(
382                {{"Tried to execute the rep/repe prefix!"}});
383            0x4: hlt();
384            0x5: cmc();
385            0x6: group3_Eb();
386            0x7: group3_Ev();
387        }
388        0x1F: decode OPCODE_OP_BOTTOM3 {
389            0x0: clc();
390            0x1: stc();
391            0x2: cli();
392            0x3: sti();
393            0x4: cld();
394            0x5: std();
395            0x6: group4();
396            0x7: group5();
397        }
398    }
399    default: FailUnimpl::oneByteOps();
400}
401