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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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43 namespace internal { | 43 namespace internal { |
44 | 44 |
45 | 45 |
46 // ----------------------------------------------------------------------------- | 46 // ----------------------------------------------------------------------------- |
47 // Common double constants. | 47 // Common double constants. |
48 | 48 |
49 class DoubleConstant: public AllStatic { | 49 class DoubleConstant: public AllStatic { |
50 public: | 50 public: |
51 static const double min_int; | 51 static const double min_int; |
52 static const double one_half; | 52 static const double one_half; |
| 53 static const double minus_zero; |
53 static const double negative_infinity; | 54 static const double negative_infinity; |
54 }; | 55 }; |
55 | 56 |
56 | 57 |
57 // ----------------------------------------------------------------------------- | 58 // ----------------------------------------------------------------------------- |
58 // Labels represent pc locations; they are typically jump or call targets. | 59 // Labels represent pc locations; they are typically jump or call targets. |
59 // After declaration, a label can be freely used to denote known or (yet) | 60 // After declaration, a label can be freely used to denote known or (yet) |
60 // unknown pc location. Assembler::bind() is used to bind a label to the | 61 // unknown pc location. Assembler::bind() is used to bind a label to the |
61 // current pc. A label can be bound only once. | 62 // current pc. A label can be bound only once. |
62 | 63 |
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545 | 546 |
546 static ExternalReference handle_scope_next_address(); | 547 static ExternalReference handle_scope_next_address(); |
547 static ExternalReference handle_scope_limit_address(); | 548 static ExternalReference handle_scope_limit_address(); |
548 static ExternalReference handle_scope_level_address(); | 549 static ExternalReference handle_scope_level_address(); |
549 | 550 |
550 static ExternalReference scheduled_exception_address(); | 551 static ExternalReference scheduled_exception_address(); |
551 | 552 |
552 // Static variables containing common double constants. | 553 // Static variables containing common double constants. |
553 static ExternalReference address_of_min_int(); | 554 static ExternalReference address_of_min_int(); |
554 static ExternalReference address_of_one_half(); | 555 static ExternalReference address_of_one_half(); |
| 556 static ExternalReference address_of_minus_zero(); |
555 static ExternalReference address_of_negative_infinity(); | 557 static ExternalReference address_of_negative_infinity(); |
556 | 558 |
557 Address address() const {return reinterpret_cast<Address>(address_);} | 559 Address address() const {return reinterpret_cast<Address>(address_);} |
558 | 560 |
559 #ifdef ENABLE_DEBUGGER_SUPPORT | 561 #ifdef ENABLE_DEBUGGER_SUPPORT |
560 // Function Debug::Break() | 562 // Function Debug::Break() |
561 static ExternalReference debug_break(); | 563 static ExternalReference debug_break(); |
562 | 564 |
563 // Used to check if single stepping is enabled in generated code. | 565 // Used to check if single stepping is enabled in generated code. |
564 static ExternalReference debug_step_in_fp_address(); | 566 static ExternalReference debug_step_in_fp_address(); |
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714 return num_bits_set; | 716 return num_bits_set; |
715 } | 717 } |
716 | 718 |
717 // Computes pow(x, y) with the special cases in the spec for Math.pow. | 719 // Computes pow(x, y) with the special cases in the spec for Math.pow. |
718 double power_double_int(double x, int y); | 720 double power_double_int(double x, int y); |
719 double power_double_double(double x, double y); | 721 double power_double_double(double x, double y); |
720 | 722 |
721 } } // namespace v8::internal | 723 } } // namespace v8::internal |
722 | 724 |
723 #endif // V8_ASSEMBLER_H_ | 725 #endif // V8_ASSEMBLER_H_ |
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