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1 // Copyright 2013 the V8 project authors. All rights reserved. | 1 // Copyright 2013 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_ARM64_CONSTANTS_ARM64_H_ | 5 #ifndef V8_ARM64_CONSTANTS_ARM64_H_ |
6 #define V8_ARM64_CONSTANTS_ARM64_H_ | 6 #define V8_ARM64_CONSTANTS_ARM64_H_ |
7 | 7 |
8 | 8 |
9 // Assert that this is an LP64 system. | 9 // Assert that this is an LP64 system. |
10 STATIC_ASSERT(sizeof(int) == sizeof(int32_t)); // NOLINT(runtime/sizeof) | 10 STATIC_ASSERT(sizeof(int) == sizeof(int32_t)); // NOLINT(runtime/sizeof) |
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100 const unsigned kWordSizeLog2 = 5; | 100 const unsigned kWordSizeLog2 = 5; |
101 const unsigned kWordSizeInBytes = kWordSize >> 3; | 101 const unsigned kWordSizeInBytes = kWordSize >> 3; |
102 const unsigned kWordSizeInBytesLog2 = kWordSizeLog2 - 3; | 102 const unsigned kWordSizeInBytesLog2 = kWordSizeLog2 - 3; |
103 const unsigned kDoubleWordSize = 64; | 103 const unsigned kDoubleWordSize = 64; |
104 const unsigned kDoubleWordSizeInBytes = kDoubleWordSize >> 3; | 104 const unsigned kDoubleWordSizeInBytes = kDoubleWordSize >> 3; |
105 const unsigned kQuadWordSize = 128; | 105 const unsigned kQuadWordSize = 128; |
106 const unsigned kQuadWordSizeInBytes = kQuadWordSize >> 3; | 106 const unsigned kQuadWordSizeInBytes = kQuadWordSize >> 3; |
107 // AArch64 floating-point specifics. These match IEEE-754. | 107 // AArch64 floating-point specifics. These match IEEE-754. |
108 const unsigned kDoubleMantissaBits = 52; | 108 const unsigned kDoubleMantissaBits = 52; |
109 const unsigned kDoubleExponentBits = 11; | 109 const unsigned kDoubleExponentBits = 11; |
| 110 const unsigned kDoubleExponentBias = 1023; |
110 const unsigned kFloatMantissaBits = 23; | 111 const unsigned kFloatMantissaBits = 23; |
111 const unsigned kFloatExponentBits = 8; | 112 const unsigned kFloatExponentBits = 8; |
112 | 113 |
113 #define REGISTER_CODE_LIST(R) \ | 114 #define REGISTER_CODE_LIST(R) \ |
114 R(0) R(1) R(2) R(3) R(4) R(5) R(6) R(7) \ | 115 R(0) R(1) R(2) R(3) R(4) R(5) R(6) R(7) \ |
115 R(8) R(9) R(10) R(11) R(12) R(13) R(14) R(15) \ | 116 R(8) R(9) R(10) R(11) R(12) R(13) R(14) R(15) \ |
116 R(16) R(17) R(18) R(19) R(20) R(21) R(22) R(23) \ | 117 R(16) R(17) R(18) R(19) R(20) R(21) R(22) R(23) \ |
117 R(24) R(25) R(26) R(27) R(28) R(29) R(30) R(31) | 118 R(24) R(25) R(26) R(27) R(28) R(29) R(30) R(31) |
118 | 119 |
119 #define INSTRUCTION_FIELDS_LIST(V_) \ | 120 #define INSTRUCTION_FIELDS_LIST(V_) \ |
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1239 }; | 1240 }; |
1240 | 1241 |
1241 enum UnallocatedOp { | 1242 enum UnallocatedOp { |
1242 UnallocatedFixed = 0x00000000, | 1243 UnallocatedFixed = 0x00000000, |
1243 UnallocatedFMask = 0x00000000 | 1244 UnallocatedFMask = 0x00000000 |
1244 }; | 1245 }; |
1245 | 1246 |
1246 } } // namespace v8::internal | 1247 } } // namespace v8::internal |
1247 | 1248 |
1248 #endif // V8_ARM64_CONSTANTS_ARM64_H_ | 1249 #endif // V8_ARM64_CONSTANTS_ARM64_H_ |
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