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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 // 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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54 #else | 54 #else |
55 static const ArchVariants kArchVariant = kMips32r1; | 55 static const ArchVariants kArchVariant = kMips32r1; |
56 #endif | 56 #endif |
57 | 57 |
58 | 58 |
59 #if(defined(__mips_hard_float) && __mips_hard_float != 0) | 59 #if(defined(__mips_hard_float) && __mips_hard_float != 0) |
60 // Use floating-point coprocessor instructions. This flag is raised when | 60 // Use floating-point coprocessor instructions. This flag is raised when |
61 // -mhard-float is passed to the compiler. | 61 // -mhard-float is passed to the compiler. |
62 const bool IsMipsSoftFloatABI = false; | 62 const bool IsMipsSoftFloatABI = false; |
63 #elif(defined(__mips_soft_float) && __mips_soft_float != 0) | 63 #elif(defined(__mips_soft_float) && __mips_soft_float != 0) |
64 // Not using floating-point coprocessor instructions. This flag is raised when | 64 // This flag is raised when -msoft-float is passed to the compiler. |
65 // -msoft-float is passed to the compiler. | 65 // Although FPU is a base requirement for v8, soft-float ABI is used |
| 66 // on soft-float systems with FPU kernel emulation. |
66 const bool IsMipsSoftFloatABI = true; | 67 const bool IsMipsSoftFloatABI = true; |
67 #else | 68 #else |
68 const bool IsMipsSoftFloatABI = true; | 69 const bool IsMipsSoftFloatABI = true; |
69 #endif | 70 #endif |
70 | 71 |
71 | 72 |
72 // Defines constants and accessor classes to assemble, disassemble and | 73 // Defines constants and accessor classes to assemble, disassemble and |
73 // simulate MIPS32 instructions. | 74 // simulate MIPS32 instructions. |
74 // | 75 // |
75 // See: MIPS32 Architecture For Programmers | 76 // See: MIPS32 Architecture For Programmers |
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798 // JS argument slots size. | 799 // JS argument slots size. |
799 const int kJSArgsSlotsSize = 0 * Instruction::kInstrSize; | 800 const int kJSArgsSlotsSize = 0 * Instruction::kInstrSize; |
800 // Assembly builtins argument slots size. | 801 // Assembly builtins argument slots size. |
801 const int kBArgsSlotsSize = 0 * Instruction::kInstrSize; | 802 const int kBArgsSlotsSize = 0 * Instruction::kInstrSize; |
802 | 803 |
803 const int kBranchReturnOffset = 2 * Instruction::kInstrSize; | 804 const int kBranchReturnOffset = 2 * Instruction::kInstrSize; |
804 | 805 |
805 } } // namespace v8::internal | 806 } } // namespace v8::internal |
806 | 807 |
807 #endif // #ifndef V8_MIPS_CONSTANTS_H_ | 808 #endif // #ifndef V8_MIPS_CONSTANTS_H_ |
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