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1 // Copyright 2014 the V8 project authors. All rights reserved. | 1 // Copyright 2014 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 // Declares a Simulator for S390 instructions if we are not generating a native | 5 // Declares a Simulator for S390 instructions if we are not generating a native |
6 // S390 binary. This Simulator allows us to run and debug S390 code generation | 6 // S390 binary. This Simulator allows us to run and debug S390 code generation |
7 // on regular desktop machines. | 7 // on regular desktop machines. |
8 // V8 calls into generated code by "calling" the CALL_GENERATED_CODE macro, | 8 // V8 calls into generated code by "calling" the CALL_GENERATED_CODE macro, |
9 // which will start execution in the Simulator or forwards to the real entry | 9 // which will start execution in the Simulator or forwards to the real entry |
10 // on a S390 hardware platform. | 10 // on a S390 hardware platform. |
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274 inline bool isWatchedStop(uint32_t bkpt_code); | 274 inline bool isWatchedStop(uint32_t bkpt_code); |
275 inline bool isEnabledStop(uint32_t bkpt_code); | 275 inline bool isEnabledStop(uint32_t bkpt_code); |
276 inline void EnableStop(uint32_t bkpt_code); | 276 inline void EnableStop(uint32_t bkpt_code); |
277 inline void DisableStop(uint32_t bkpt_code); | 277 inline void DisableStop(uint32_t bkpt_code); |
278 inline void IncreaseStopCounter(uint32_t bkpt_code); | 278 inline void IncreaseStopCounter(uint32_t bkpt_code); |
279 void PrintStopInfo(uint32_t code); | 279 void PrintStopInfo(uint32_t code); |
280 | 280 |
281 // Byte Reverse | 281 // Byte Reverse |
282 inline int16_t ByteReverse(int16_t hword); | 282 inline int16_t ByteReverse(int16_t hword); |
283 inline int32_t ByteReverse(int32_t word); | 283 inline int32_t ByteReverse(int32_t word); |
| 284 inline int64_t ByteReverse(int64_t dword); |
284 | 285 |
285 // Read and write memory. | 286 // Read and write memory. |
286 inline uint8_t ReadBU(intptr_t addr); | 287 inline uint8_t ReadBU(intptr_t addr); |
287 inline int8_t ReadB(intptr_t addr); | 288 inline int8_t ReadB(intptr_t addr); |
288 inline void WriteB(intptr_t addr, uint8_t value); | 289 inline void WriteB(intptr_t addr, uint8_t value); |
289 inline void WriteB(intptr_t addr, int8_t value); | 290 inline void WriteB(intptr_t addr, int8_t value); |
290 | 291 |
291 inline uint16_t ReadHU(intptr_t addr, Instruction* instr); | 292 inline uint16_t ReadHU(intptr_t addr, Instruction* instr); |
292 inline int16_t ReadH(intptr_t addr, Instruction* instr); | 293 inline int16_t ReadH(intptr_t addr, Instruction* instr); |
293 // Note: Overloaded on the sign of the value. | 294 // Note: Overloaded on the sign of the value. |
294 inline void WriteH(intptr_t addr, uint16_t value, Instruction* instr); | 295 inline void WriteH(intptr_t addr, uint16_t value, Instruction* instr); |
295 inline void WriteH(intptr_t addr, int16_t value, Instruction* instr); | 296 inline void WriteH(intptr_t addr, int16_t value, Instruction* instr); |
296 | 297 |
297 inline uint32_t ReadWU(intptr_t addr, Instruction* instr); | 298 inline uint32_t ReadWU(intptr_t addr, Instruction* instr); |
298 inline int32_t ReadW(intptr_t addr, Instruction* instr); | 299 inline int32_t ReadW(intptr_t addr, Instruction* instr); |
| 300 inline int64_t ReadW64(intptr_t addr, Instruction* instr); |
299 inline void WriteW(intptr_t addr, uint32_t value, Instruction* instr); | 301 inline void WriteW(intptr_t addr, uint32_t value, Instruction* instr); |
300 inline void WriteW(intptr_t addr, int32_t value, Instruction* instr); | 302 inline void WriteW(intptr_t addr, int32_t value, Instruction* instr); |
301 | 303 |
302 inline int64_t ReadDW(intptr_t addr); | 304 inline int64_t ReadDW(intptr_t addr); |
303 inline double ReadDouble(intptr_t addr); | 305 inline double ReadDouble(intptr_t addr); |
304 inline void WriteDW(intptr_t addr, int64_t value); | 306 inline void WriteDW(intptr_t addr, int64_t value); |
305 | 307 |
306 // S390 | 308 // S390 |
307 void Trace(Instruction* instr); | 309 void Trace(Instruction* instr); |
308 bool DecodeTwoByte(Instruction* instr); | 310 bool DecodeTwoByte(Instruction* instr); |
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1277 static inline void UnregisterCTryCatch(v8::internal::Isolate* isolate) { | 1279 static inline void UnregisterCTryCatch(v8::internal::Isolate* isolate) { |
1278 Simulator::current(isolate)->PopAddress(); | 1280 Simulator::current(isolate)->PopAddress(); |
1279 } | 1281 } |
1280 }; | 1282 }; |
1281 | 1283 |
1282 } // namespace internal | 1284 } // namespace internal |
1283 } // namespace v8 | 1285 } // namespace v8 |
1284 | 1286 |
1285 #endif // !defined(USE_SIMULATOR) | 1287 #endif // !defined(USE_SIMULATOR) |
1286 #endif // V8_S390_SIMULATOR_S390_H_ | 1288 #endif // V8_S390_SIMULATOR_S390_H_ |
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