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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 // 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 | 5 |
| 6 // Declares a Simulator for MIPS instructions if we are not generating a native | 6 // Declares a Simulator for MIPS instructions if we are not generating a native |
| 7 // MIPS binary. This Simulator allows us to run and debug MIPS code generation | 7 // MIPS binary. This Simulator allows us to run and debug MIPS code generation |
| 8 // on regular desktop machines. | 8 // on regular desktop machines. |
| 9 // V8 calls into generated code by "calling" the CALL_GENERATED_CODE macro, | 9 // V8 calls into generated code by "calling" the CALL_GENERATED_CODE macro, |
| 10 // which will start execution in the Simulator or forwards to the real entry | 10 // which will start execution in the Simulator or forwards to the real entry |
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| 256 inline int32_t GetDoubleLOW(double* addr); | 256 inline int32_t GetDoubleLOW(double* addr); |
| 257 // Set Double Higher / Lower word. | 257 // Set Double Higher / Lower word. |
| 258 inline int32_t SetDoubleHIW(double* addr); | 258 inline int32_t SetDoubleHIW(double* addr); |
| 259 inline int32_t SetDoubleLOW(double* addr); | 259 inline int32_t SetDoubleLOW(double* addr); |
| 260 | 260 |
| 261 // Executing is handled based on the instruction type. | 261 // Executing is handled based on the instruction type. |
| 262 void DecodeTypeRegister(Instruction* instr); | 262 void DecodeTypeRegister(Instruction* instr); |
| 263 | 263 |
| 264 // Helper function for DecodeTypeRegister. | 264 // Helper function for DecodeTypeRegister. |
| 265 void ConfigureTypeRegister(Instruction* instr, | 265 void ConfigureTypeRegister(Instruction* instr, |
| 266 int32_t& alu_out, | 266 int32_t* alu_out, |
| 267 int64_t& i64hilo, | 267 int64_t* i64hilo, |
| 268 uint64_t& u64hilo, | 268 uint64_t* u64hilo, |
| 269 int32_t& next_pc, | 269 int32_t* next_pc, |
| 270 int32_t& return_addr_reg, | 270 int32_t* return_addr_reg, |
| 271 bool& do_interrupt); | 271 bool* do_interrupt); |
| 272 | 272 |
| 273 void DecodeTypeImmediate(Instruction* instr); | 273 void DecodeTypeImmediate(Instruction* instr); |
| 274 void DecodeTypeJump(Instruction* instr); | 274 void DecodeTypeJump(Instruction* instr); |
| 275 | 275 |
| 276 // Used for breakpoints and traps. | 276 // Used for breakpoints and traps. |
| 277 void SoftwareInterrupt(Instruction* instr); | 277 void SoftwareInterrupt(Instruction* instr); |
| 278 | 278 |
| 279 // Stop helper functions. | 279 // Stop helper functions. |
| 280 bool IsWatchpoint(uint32_t code); | 280 bool IsWatchpoint(uint32_t code); |
| 281 void PrintWatchpoint(uint32_t code); | 281 void PrintWatchpoint(uint32_t code); |
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| 407 | 407 |
| 408 static inline void UnregisterCTryCatch() { | 408 static inline void UnregisterCTryCatch() { |
| 409 Simulator::current(Isolate::Current())->PopAddress(); | 409 Simulator::current(Isolate::Current())->PopAddress(); |
| 410 } | 410 } |
| 411 }; | 411 }; |
| 412 | 412 |
| 413 } } // namespace v8::internal | 413 } } // namespace v8::internal |
| 414 | 414 |
| 415 #endif // !defined(USE_SIMULATOR) | 415 #endif // !defined(USE_SIMULATOR) |
| 416 #endif // V8_MIPS_SIMULATOR_MIPS_H_ | 416 #endif // V8_MIPS_SIMULATOR_MIPS_H_ |
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