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1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file |
2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
4 | 4 |
5 #ifndef VM_CONSTANTS_IA32_H_ | 5 #ifndef VM_CONSTANTS_IA32_H_ |
6 #define VM_CONSTANTS_IA32_H_ | 6 #define VM_CONSTANTS_IA32_H_ |
7 | 7 |
8 #include "platform/assert.h" | 8 #include "platform/assert.h" |
9 | 9 |
10 namespace dart { | 10 namespace dart { |
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56 typedef XmmRegister FpuRegister; | 56 typedef XmmRegister FpuRegister; |
57 const FpuRegister FpuTMP = XMM0; | 57 const FpuRegister FpuTMP = XMM0; |
58 const int kNumberOfFpuRegisters = kNumberOfXmmRegisters; | 58 const int kNumberOfFpuRegisters = kNumberOfXmmRegisters; |
59 const FpuRegister kNoFpuRegister = kNoXmmRegister; | 59 const FpuRegister kNoFpuRegister = kNoXmmRegister; |
60 | 60 |
61 | 61 |
62 // Register aliases. | 62 // Register aliases. |
63 const Register TMP = kNoRegister; // No scratch register used by assembler. | 63 const Register TMP = kNoRegister; // No scratch register used by assembler. |
64 const Register TMP2 = kNoRegister; // No second assembler scratch register. | 64 const Register TMP2 = kNoRegister; // No second assembler scratch register. |
65 const Register CTX = EDI; // Location of current context at method entry. | 65 const Register CTX = EDI; // Location of current context at method entry. |
| 66 const Register CODE_REG = EDI; |
66 const Register PP = kNoRegister; // No object pool pointer. | 67 const Register PP = kNoRegister; // No object pool pointer. |
67 const Register SPREG = ESP; // Stack pointer register. | 68 const Register SPREG = ESP; // Stack pointer register. |
68 const Register FPREG = EBP; // Frame pointer register. | 69 const Register FPREG = EBP; // Frame pointer register. |
69 const Register ICREG = ECX; // IC data register. | 70 const Register ICREG = ECX; // IC data register. |
70 const Register ARGS_DESC_REG = EDX; // Arguments descriptor register. | 71 const Register ARGS_DESC_REG = EDX; // Arguments descriptor register. |
71 const Register THR = ESI; // Caches current thread in generated code. | 72 const Register THR = ESI; // Caches current thread in generated code. |
72 | 73 |
73 // Exception object is passed in this register to the catch handlers when an | 74 // Exception object is passed in this register to the catch handlers when an |
74 // exception is thrown. | 75 // exception is thrown. |
75 const Register kExceptionObjectReg = EAX; | 76 const Register kExceptionObjectReg = EAX; |
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141 }; | 142 }; |
142 | 143 |
143 | 144 |
144 // The largest multibyte nop we will emit. This could go up to 15 if it | 145 // The largest multibyte nop we will emit. This could go up to 15 if it |
145 // becomes important to us. | 146 // becomes important to us. |
146 const int MAX_NOP_SIZE = 8; | 147 const int MAX_NOP_SIZE = 8; |
147 | 148 |
148 } // namespace dart | 149 } // namespace dart |
149 | 150 |
150 #endif // VM_CONSTANTS_IA32_H_ | 151 #endif // VM_CONSTANTS_IA32_H_ |
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