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1 // Copyright (c) 1994-2006 Sun Microsystems Inc. | 1 // Copyright (c) 1994-2006 Sun Microsystems Inc. |
2 // All Rights Reserved. | 2 // All Rights Reserved. |
3 // | 3 // |
4 // Redistribution and use in source and binary forms, with or without | 4 // Redistribution and use in source and binary forms, with or without |
5 // modification, are permitted provided that the following conditions are | 5 // modification, are permitted provided that the following conditions are |
6 // met: | 6 // met: |
7 // | 7 // |
8 // - Redistributions of source code must retain the above copyright notice, | 8 // - Redistributions of source code must retain the above copyright notice, |
9 // this list of conditions and the following disclaimer. | 9 // this list of conditions and the following disclaimer. |
10 // | 10 // |
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320 case greater_equal: | 320 case greater_equal: |
321 return less_equal; | 321 return less_equal; |
322 case less_equal: | 322 case less_equal: |
323 return greater_equal; | 323 return greater_equal; |
324 default: | 324 default: |
325 return cc; | 325 return cc; |
326 }; | 326 }; |
327 } | 327 } |
328 | 328 |
329 | 329 |
330 enum Hint { | |
331 no_hint = 0, | |
332 not_taken = 0x2e, | |
333 taken = 0x3e | |
334 }; | |
335 | |
336 // The result of negating a hint is as if the corresponding condition | |
337 // were negated by NegateCondition. That is, no_hint is mapped to | |
338 // itself and not_taken and taken are mapped to each other. | |
339 inline Hint NegateHint(Hint hint) { | |
340 return (hint == no_hint) | |
341 ? no_hint | |
342 : ((hint == not_taken) ? taken : not_taken); | |
343 } | |
344 | |
345 | |
346 // ----------------------------------------------------------------------------- | 330 // ----------------------------------------------------------------------------- |
347 // Machine instruction Immediates | 331 // Machine instruction Immediates |
348 | 332 |
349 class Immediate BASE_EMBEDDED { | 333 class Immediate BASE_EMBEDDED { |
350 public: | 334 public: |
351 explicit Immediate(int32_t value) : value_(value) {} | 335 explicit Immediate(int32_t value) : value_(value) {} |
352 | 336 |
353 private: | 337 private: |
354 int32_t value_; | 338 int32_t value_; |
355 | 339 |
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1207 | 1191 |
1208 // Jump near absolute indirect (r64) | 1192 // Jump near absolute indirect (r64) |
1209 void jmp(Register adr); | 1193 void jmp(Register adr); |
1210 | 1194 |
1211 // Jump near absolute indirect (m64) | 1195 // Jump near absolute indirect (m64) |
1212 void jmp(const Operand& src); | 1196 void jmp(const Operand& src); |
1213 | 1197 |
1214 // Conditional jumps | 1198 // Conditional jumps |
1215 void j(Condition cc, | 1199 void j(Condition cc, |
1216 Label* L, | 1200 Label* L, |
1217 Hint hint, | |
1218 Label::Distance distance = Label::kFar); | 1201 Label::Distance distance = Label::kFar); |
1219 void j(Condition cc, Label* L, Label::Distance distance = Label::kFar) { | |
1220 j(cc, L, no_hint, distance); | |
1221 } | |
1222 void j(Condition cc, Handle<Code> target, RelocInfo::Mode rmode); | 1202 void j(Condition cc, Handle<Code> target, RelocInfo::Mode rmode); |
1223 | 1203 |
1224 // Floating-point operations | 1204 // Floating-point operations |
1225 void fld(int i); | 1205 void fld(int i); |
1226 | 1206 |
1227 void fld1(); | 1207 void fld1(); |
1228 void fldz(); | 1208 void fldz(); |
1229 void fldpi(); | 1209 void fldpi(); |
1230 void fldln2(); | 1210 void fldln2(); |
1231 | 1211 |
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1644 private: | 1624 private: |
1645 Assembler* assembler_; | 1625 Assembler* assembler_; |
1646 #ifdef DEBUG | 1626 #ifdef DEBUG |
1647 int space_before_; | 1627 int space_before_; |
1648 #endif | 1628 #endif |
1649 }; | 1629 }; |
1650 | 1630 |
1651 } } // namespace v8::internal | 1631 } } // namespace v8::internal |
1652 | 1632 |
1653 #endif // V8_X64_ASSEMBLER_X64_H_ | 1633 #endif // V8_X64_ASSEMBLER_X64_H_ |
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