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1 // Copyright 2011 the V8 project authors. All rights reserved. | 1 // Copyright 2011 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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43 const int kConstantPoolLengthMaxMask = 0xffff; | 43 const int kConstantPoolLengthMaxMask = 0xffff; |
44 inline int EncodeConstantPoolLength(int length) { | 44 inline int EncodeConstantPoolLength(int length) { |
45 ASSERT((length & kConstantPoolLengthMaxMask) == length); | 45 ASSERT((length & kConstantPoolLengthMaxMask) == length); |
46 return ((length & 0xfff0) << 4) | (length & 0xf); | 46 return ((length & 0xfff0) << 4) | (length & 0xf); |
47 } | 47 } |
48 inline int DecodeConstantPoolLength(int instr) { | 48 inline int DecodeConstantPoolLength(int instr) { |
49 ASSERT((instr & kConstantPoolMarkerMask) == kConstantPoolMarker); | 49 ASSERT((instr & kConstantPoolMarkerMask) == kConstantPoolMarker); |
50 return ((instr >> 4) & 0xfff0) | (instr & 0xf); | 50 return ((instr >> 4) & 0xfff0) | (instr & 0xf); |
51 } | 51 } |
52 | 52 |
| 53 // Used in code age prologue - ldr(pc, MemOperand(pc, -4)) |
| 54 const int kCodeAgeJumpInstruction = 0xe51ff004; |
| 55 |
53 // Number of registers in normal ARM mode. | 56 // Number of registers in normal ARM mode. |
54 const int kNumRegisters = 16; | 57 const int kNumRegisters = 16; |
55 | 58 |
56 // VFP support. | 59 // VFP support. |
57 const int kNumVFPSingleRegisters = 32; | 60 const int kNumVFPSingleRegisters = 32; |
58 const int kNumVFPDoubleRegisters = 32; | 61 const int kNumVFPDoubleRegisters = 32; |
59 const int kNumVFPRegisters = kNumVFPSingleRegisters + kNumVFPDoubleRegisters; | 62 const int kNumVFPRegisters = kNumVFPSingleRegisters + kNumVFPDoubleRegisters; |
60 | 63 |
61 // PC is register 15. | 64 // PC is register 15. |
62 const int kPCRegister = 15; | 65 const int kPCRegister = 15; |
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761 static int Number(const char* name, bool* is_double); | 764 static int Number(const char* name, bool* is_double); |
762 | 765 |
763 private: | 766 private: |
764 static const char* names_[kNumVFPRegisters]; | 767 static const char* names_[kNumVFPRegisters]; |
765 }; | 768 }; |
766 | 769 |
767 | 770 |
768 } } // namespace v8::internal | 771 } } // namespace v8::internal |
769 | 772 |
770 #endif // V8_ARM_CONSTANTS_ARM_H_ | 773 #endif // V8_ARM_CONSTANTS_ARM_H_ |
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