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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 // 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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56 const unsigned kNumberOfFPRegisters = 32; | 56 const unsigned kNumberOfFPRegisters = 32; |
57 // Callee saved registers are x19-x30(lr). | 57 // Callee saved registers are x19-x30(lr). |
58 const int kNumberOfCalleeSavedRegisters = 11; | 58 const int kNumberOfCalleeSavedRegisters = 11; |
59 const int kFirstCalleeSavedRegisterIndex = 19; | 59 const int kFirstCalleeSavedRegisterIndex = 19; |
60 // Callee saved FP registers are d8-d15. | 60 // Callee saved FP registers are d8-d15. |
61 const int kNumberOfCalleeSavedFPRegisters = 8; | 61 const int kNumberOfCalleeSavedFPRegisters = 8; |
62 const int kFirstCalleeSavedFPRegisterIndex = 8; | 62 const int kFirstCalleeSavedFPRegisterIndex = 8; |
63 // Callee saved registers with no specific purpose in JS are x19-x25. | 63 // Callee saved registers with no specific purpose in JS are x19-x25. |
64 const unsigned kJSCalleeSavedRegList = 0x03f80000; | 64 const unsigned kJSCalleeSavedRegList = 0x03f80000; |
65 // TODO(all): k<Y>RegSize should probably be k<Y>RegSizeInBits. | 65 // TODO(all): k<Y>RegSize should probably be k<Y>RegSizeInBits. |
66 const unsigned kWRegSize = 32; | 66 const unsigned kWRegSizeInBits = 32; |
67 const unsigned kWRegSizeLog2 = 5; | 67 const unsigned kWRegSizeInBitsLog2 = 5; |
68 const unsigned kWRegSizeInBytes = kWRegSize >> 3; | 68 const unsigned kWRegSize = kWRegSizeInBits >> 3; |
69 const unsigned kWRegSizeInBytesLog2 = kWRegSizeLog2 - 3; | 69 const unsigned kWRegSizeLog2 = kWRegSizeInBitsLog2 - 3; |
70 const unsigned kXRegSize = 64; | 70 const unsigned kXRegSizeInBits = 64; |
71 const unsigned kXRegSizeLog2 = 6; | 71 const unsigned kXRegSizeInBitsLog2 = 6; |
72 const unsigned kXRegSizeInBytes = kXRegSize >> 3; | 72 const unsigned kXRegSize = kXRegSizeInBits >> 3; |
73 const unsigned kXRegSizeInBytesLog2 = kXRegSizeLog2 - 3; | 73 const unsigned kXRegSizeLog2 = kXRegSizeInBitsLog2 - 3; |
74 const unsigned kSRegSize = 32; | 74 const unsigned kSRegSizeInBits = 32; |
75 const unsigned kSRegSizeLog2 = 5; | 75 const unsigned kSRegSizeInBitsLog2 = 5; |
76 const unsigned kSRegSizeInBytes = kSRegSize >> 3; | 76 const unsigned kSRegSize = kSRegSizeInBits >> 3; |
77 const unsigned kSRegSizeInBytesLog2 = kSRegSizeLog2 - 3; | 77 const unsigned kSRegSizeLog2 = kSRegSizeInBitsLog2 - 3; |
78 const unsigned kDRegSize = 64; | 78 const unsigned kDRegSizeInBits = 64; |
79 const unsigned kDRegSizeLog2 = 6; | 79 const unsigned kDRegSizeInBitsLog2 = 6; |
80 const unsigned kDRegSizeInBytes = kDRegSize >> 3; | 80 const unsigned kDRegSize = kDRegSizeInBits >> 3; |
81 const unsigned kDRegSizeInBytesLog2 = kDRegSizeLog2 - 3; | 81 const unsigned kDRegSizeLog2 = kDRegSizeInBitsLog2 - 3; |
82 const int64_t kWRegMask = 0x00000000ffffffffL; | 82 const int64_t kWRegMask = 0x00000000ffffffffL; |
83 const int64_t kXRegMask = 0xffffffffffffffffL; | 83 const int64_t kXRegMask = 0xffffffffffffffffL; |
84 const int64_t kSRegMask = 0x00000000ffffffffL; | 84 const int64_t kSRegMask = 0x00000000ffffffffL; |
85 const int64_t kDRegMask = 0xffffffffffffffffL; | 85 const int64_t kDRegMask = 0xffffffffffffffffL; |
86 // TODO(all) check if the expression below works on all compilers or if it | 86 // TODO(all) check if the expression below works on all compilers or if it |
87 // triggers an overflow error. | 87 // triggers an overflow error. |
88 const int64_t kDSignMask = 0x1L << 63; | 88 const int64_t kDSignMask = 0x1L << 63; |
89 const int64_t kDSignBit = 63; | 89 const int64_t kDSignBit = 63; |
90 const int64_t kXSignMask = 0x1L << 63; | 90 const int64_t kXSignMask = 0x1L << 63; |
91 const int64_t kXSignBit = 63; | 91 const int64_t kXSignBit = 63; |
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1253 }; | 1253 }; |
1254 | 1254 |
1255 enum UnallocatedOp { | 1255 enum UnallocatedOp { |
1256 UnallocatedFixed = 0x00000000, | 1256 UnallocatedFixed = 0x00000000, |
1257 UnallocatedFMask = 0x00000000 | 1257 UnallocatedFMask = 0x00000000 |
1258 }; | 1258 }; |
1259 | 1259 |
1260 } } // namespace v8::internal | 1260 } } // namespace v8::internal |
1261 | 1261 |
1262 #endif // V8_A64_CONSTANTS_A64_H_ | 1262 #endif // V8_A64_CONSTANTS_A64_H_ |
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