x87.isa revision 4825:93a992aa87f6 
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
560x1B: decode OPCODE_OP_BOTTOM3 {
57    //0x0: esc0();
58    0x0: decode MODRM_REG {
59        0x0: fadd();
60        0x1: fmul();
61        0x2: fcom();
62        0x3: fcomp();
63        0x4: fsub();
64        0x5: fsubr();
65        0x6: fdiv();
66        0x7: fdivr();
67    }
68    //0x1: esc1();
69    0x1: decode MODRM_REG {
70        0x0: fld();
71        0x1: decode MODRM_MOD {
72            0x3: fxch();
73            default: Inst::UD2();
74        }
75        0x2: decode MODRM_MOD {
76            0x3: decode MODRM_RM {
77                0x0: fnop();
78                default: Inst::UD2();
79            }
80            default: fst();
81        }
82        0x3: decode MODRM_MOD {
83            0x3: Inst::UD2();
84            default: fstp();
85        }
86        0x4: decode MODRM_MOD {
87            0x3: decode MODRM_RM {
88                0x0: fchs();
89                0x1: fabs();
90                0x4: ftst();
91                0x5: fxam();
92                default: Inst::UD2();
93            }
94            default: fldenv();
95        }
96        0x5: decode MODRM_MOD {
97            0x3: decode MODRM_RM {
98                0x0: fld1();
99                0x1: fldl2t();
100                0x2: fldl2e();
101                0x3: fldpi();
102                0x4: fldlg2();
103                0x5: fldln2();
104                0x6: fldz();
105            }
106            default: fldcw();
107        }
108        0x6: decode MODRM_MOD {
109            0x3: decode MODRM_RM {
110                0x0: f2xm1();
111                0x1: fyl2x();
112                0x2: fptan();
113                0x3: fpatan();
114                0x4: fxtract();
115                0x5: fprem1();
116                0x6: fdecstp();
117                0x7: fincstp();
118            }
119            default: fnstenv();
120        }
121        0x7: decode MODRM_MOD {
122            0x3: decode MODRM_RM {
123                0x0: fprem();
124                0x1: fyl2xp1();
125                0x2: fsqrt();
126                0x3: fsincos();
127                0x4: frndint();
128                0x5: fscale();
129                0x6: fsin();
130                0x7: fcos();
131            }
132            default: fnstcw();
133        }
134    }
135    //0x2: esc2();
136    0x2: decode MODRM_REG {
137        0x0: decode MODRM_MOD {
138            0x3: fcmovb();
139            default: fiadd();
140        }
141        0x1: decode MODRM_MOD {
142            0x3: fcmove();
143            default: fimul();
144        }
145        0x2: decode MODRM_MOD {
146            0x3: fcmovbe();
147            default: ficom();
148        }
149        0x3: decode MODRM_MOD {
150            0x3: fcmovu();
151            default: ficomp();
152        }
153        0x4: decode MODRM_MOD {
154            0x3: Inst::UD2();
155            default: fisub();
156        }
157        0x5: decode MODRM_MOD {
158            0x3: decode MODRM_RM {
159                0x1: fucompp();
160                default: Inst::UD2();
161            }
162            default: fisubr();
163        }
164        0x6: decode MODRM_MOD {
165            0x3: Inst::UD2();
166            default: fidiv();
167        }
168        0x7: decode MODRM_MOD {
169            0x3: Inst::UD2();
170            default: fidivr();
171        }
172    }
173    //0x3: esc3();
174    0x3: decode MODRM_REG {
175        0x0: decode MODRM_MOD {
176            0x3: fcmovnb();
177            default: fild();
178        }
179        0x1: decode MODRM_MOD {
180            0x3: fcmovne();
181            default: fisttp();
182        }
183        0x2: decode MODRM_MOD {
184            0x3: fcmovnbe();
185            default: fist();
186        }
187        0x3: decode MODRM_MOD {
188            0x3: fcmovnu();
189            default: fistp();
190        }
191        0x4: decode MODRM_MOD {
192            0x3: decode MODRM_RM {
193                0x2: fnclex();
194                0x3: fninit();
195                default: Inst::UD2();
196            }
197            default: Inst::UD2();
198        }
199        0x5: decode MODRM_MOD {
200            0x3: fucomi();
201            default: fld();
202        }
203        0x6: decode MODRM_MOD {
204            0x3: fcomi();
205            default: Inst::UD2();
206        }
207        0x7: decode MODRM_MOD {
208            0x3: Inst::UD2();
209            default: fstp();
210        }
211    }
212    //0x4: esc4();
213    0x4: decode MODRM_REG {
214        0x0: fadd();
215        0x1: fmul();
216        0x2: decode MODRM_MOD {
217            0x3: Inst::UD2();
218            default: fcom();
219        }
220        0x3: decode MODRM_MOD {
221            0x3: Inst::UD2();
222            default: fcomp();
223        }
224        0x4: decode MODRM_MOD {
225            0x3: fsubr();
226            default: fsub();
227        }
228        0x5: decode MODRM_MOD {
229            0x3: fsub();
230            default: fsubr();
231        }
232        0x6: decode MODRM_MOD {
233            0x3: fdivr();
234            default: fdiv();
235        }
236        0x7: decode MODRM_MOD {
237            0x3: fdiv();
238            default: fdivr();
239        }
240    }
241    //0x5: esc5();
242    0x5: decode MODRM_REG {
243        0x0: decode MODRM_MOD {
244            0x3: ffree();
245            default: fld();
246        }
247        0x1: decode MODRM_MOD {
248            0x3: Inst::UD2();
249            default: fisttp();
250        }
251        0x2: fst();
252        0x3: fstp();
253        0x4: decode MODRM_MOD {
254            0x3: fucom();
255            default: frstor();
256        }
257        0x5: decode MODRM_MOD {
258            0x3: fucomp();
259            default: Inst::UD2();
260        }
261        0x6: decode MODRM_MOD {
262            0x3: Inst::UD2();
263            default: fnsave();
264        }
265        0x7: decode MODRM_MOD {
266            0x3: Inst::UD2();
267            default: fnstsw();
268        }
269    }
270    //0x6: esc6();
271    0x6: decode MODRM_REG {
272        0x0: decode MODRM_MOD {
273            0x3: faddp();
274            default: fiadd();
275        }
276        0x1: decode MODRM_MOD {
277            0x3: fmulp();
278            default: fimul();
279        }
280        0x2: decode MODRM_MOD {
281            0x3: Inst::UD2();
282            default: ficom();
283        }
284        0x3: decode MODRM_MOD {
285            0x3: decode MODRM_RM {
286                0x1: fcompp();
287                default: Inst::UD2();
288            }
289            default: ficomp();
290        }
291        0x4: decode MODRM_MOD {
292            0x3: fsubrp();
293            default: fisub();
294        }
295        0x5: decode MODRM_MOD {
296            0x3: fsubp();
297            default: fisubr();
298        }
299        0x6: decode MODRM_MOD {
300            0x3: fdivrp();
301            default: fidiv();
302        }
303        0x7: decode MODRM_MOD {
304            0x3: fdivp();
305            default: fidivr();
306        }
307    }
308    //0x7: esc7();
309    0x7: decode MODRM_REG {
310        0x0: decode MODRM_MOD {
311            0x3: Inst::UD2();
312            default: fild();
313        }
314        0x1: decode MODRM_MOD {
315            0x3: Inst::UD2();
316            default: fisttp();
317        }
318        0x2: decode MODRM_MOD {
319            0x3: Inst::UD2();
320            default: fist();
321        }
322        0x3: decode MODRM_MOD {
323            0x3: Inst::UD2();
324            default: fistp();
325        }
326        0x4: decode MODRM_MOD {
327            0x3: decode MODRM_RM {
328                0x0: fnstsw();
329                default: Inst::UD2();
330            }
331            default: fbld();
332        }
333        0x5: decode MODRM_MOD {
334            0x3: fucomip();
335            default: fild();
336        }
337        0x6: decode MODRM_MOD {
338            0x3: fcomip();
339            default: fbstp();
340        }
341        0x7: decode MODRM_MOD {
342            0x3: Inst::UD2();
343            default: fistp();
344        }
345    }
346}
347