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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 the V8 project authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef V8_GLOBALS_H_ | 5 #ifndef V8_GLOBALS_H_ |
6 #define V8_GLOBALS_H_ | 6 #define V8_GLOBALS_H_ |
7 | 7 |
8 #include <stddef.h> | 8 #include <stddef.h> |
9 #include <stdint.h> | 9 #include <stdint.h> |
10 | 10 |
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637 union IeeeDoubleBigEndianArchType { | 637 union IeeeDoubleBigEndianArchType { |
638 double d; | 638 double d; |
639 struct { | 639 struct { |
640 unsigned int sign :1; | 640 unsigned int sign :1; |
641 unsigned int exp :11; | 641 unsigned int exp :11; |
642 unsigned int man_high :20; | 642 unsigned int man_high :20; |
643 unsigned int man_low :32; | 643 unsigned int man_low :32; |
644 } bits; | 644 } bits; |
645 }; | 645 }; |
646 | 646 |
647 #if V8_TARGET_LITTLE_ENDIAN | |
648 typedef IeeeDoubleLittleEndianArchType IeeeDoubleArchType; | |
649 const int kIeeeDoubleMantissaWordOffset = 0; | |
650 const int kIeeeDoubleExponentWordOffset = 4; | |
651 #else | |
652 typedef IeeeDoubleBigEndianArchType IeeeDoubleArchType; | |
653 const int kIeeeDoubleMantissaWordOffset = 4; | |
654 const int kIeeeDoubleExponentWordOffset = 0; | |
655 #endif | |
656 | 647 |
657 // AccessorCallback | 648 // AccessorCallback |
658 struct AccessorDescriptor { | 649 struct AccessorDescriptor { |
659 Object* (*getter)(Isolate* isolate, Object* object, void* data); | 650 Object* (*getter)(Isolate* isolate, Object* object, void* data); |
660 Object* (*setter)( | 651 Object* (*setter)( |
661 Isolate* isolate, JSObject* object, Object* value, void* data); | 652 Isolate* isolate, JSObject* object, Object* value, void* data); |
662 void* data; | 653 void* data; |
663 }; | 654 }; |
664 | 655 |
665 | 656 |
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1080 return static_cast<uint32_t>(bit_cast<uintptr_t>(address) >> | 1071 return static_cast<uint32_t>(bit_cast<uintptr_t>(address) >> |
1081 kPointerSizeLog2); | 1072 kPointerSizeLog2); |
1082 } | 1073 } |
1083 | 1074 |
1084 } // namespace internal | 1075 } // namespace internal |
1085 } // namespace v8 | 1076 } // namespace v8 |
1086 | 1077 |
1087 namespace i = v8::internal; | 1078 namespace i = v8::internal; |
1088 | 1079 |
1089 #endif // V8_GLOBALS_H_ | 1080 #endif // V8_GLOBALS_H_ |
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