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| 1 // Copyright 2010 the V8 project authors. All rights reserved. | 1 // Copyright 2010 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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| 982 | 982 |
| 983 int Simulator::ReadW(int32_t addr, Instr* instr) { | 983 int Simulator::ReadW(int32_t addr, Instr* instr) { |
| 984 #if V8_TARGET_CAN_READ_UNALIGNED | 984 #if V8_TARGET_CAN_READ_UNALIGNED |
| 985 intptr_t* ptr = reinterpret_cast<intptr_t*>(addr); | 985 intptr_t* ptr = reinterpret_cast<intptr_t*>(addr); |
| 986 return *ptr; | 986 return *ptr; |
| 987 #else | 987 #else |
| 988 if ((addr & 3) == 0) { | 988 if ((addr & 3) == 0) { |
| 989 intptr_t* ptr = reinterpret_cast<intptr_t*>(addr); | 989 intptr_t* ptr = reinterpret_cast<intptr_t*>(addr); |
| 990 return *ptr; | 990 return *ptr; |
| 991 } | 991 } |
| 992 PrintF("Unaligned read at 0x%08x, pc=%p\n", addr, instr); | 992 PrintF("Unaligned read at 0x%08x, pc=0x%08" V8PRIxPTR "\n", |
| 993 addr, |
| 994 reinterpret_cast<intptr_t>(instr)); |
| 993 UNIMPLEMENTED(); | 995 UNIMPLEMENTED(); |
| 994 return 0; | 996 return 0; |
| 995 #endif | 997 #endif |
| 996 } | 998 } |
| 997 | 999 |
| 998 | 1000 |
| 999 void Simulator::WriteW(int32_t addr, int value, Instr* instr) { | 1001 void Simulator::WriteW(int32_t addr, int value, Instr* instr) { |
| 1000 #if V8_TARGET_CAN_READ_UNALIGNED | 1002 #if V8_TARGET_CAN_READ_UNALIGNED |
| 1001 intptr_t* ptr = reinterpret_cast<intptr_t*>(addr); | 1003 intptr_t* ptr = reinterpret_cast<intptr_t*>(addr); |
| 1002 *ptr = value; | 1004 *ptr = value; |
| 1003 return; | 1005 return; |
| 1004 #else | 1006 #else |
| 1005 if ((addr & 3) == 0) { | 1007 if ((addr & 3) == 0) { |
| 1006 intptr_t* ptr = reinterpret_cast<intptr_t*>(addr); | 1008 intptr_t* ptr = reinterpret_cast<intptr_t*>(addr); |
| 1007 *ptr = value; | 1009 *ptr = value; |
| 1008 return; | 1010 return; |
| 1009 } | 1011 } |
| 1010 PrintF("Unaligned write at 0x%08x, pc=%p\n", addr, instr); | 1012 PrintF("Unaligned write at 0x%08x, pc=0x%08" V8PRIxPTR "\n", |
| 1013 addr, |
| 1014 reinterpret_cast<intptr_t>(instr)); |
| 1011 UNIMPLEMENTED(); | 1015 UNIMPLEMENTED(); |
| 1012 #endif | 1016 #endif |
| 1013 } | 1017 } |
| 1014 | 1018 |
| 1015 | 1019 |
| 1016 uint16_t Simulator::ReadHU(int32_t addr, Instr* instr) { | 1020 uint16_t Simulator::ReadHU(int32_t addr, Instr* instr) { |
| 1017 #if V8_TARGET_CAN_READ_UNALIGNED | 1021 #if V8_TARGET_CAN_READ_UNALIGNED |
| 1018 uint16_t* ptr = reinterpret_cast<uint16_t*>(addr); | 1022 uint16_t* ptr = reinterpret_cast<uint16_t*>(addr); |
| 1019 return *ptr; | 1023 return *ptr; |
| 1020 #else | 1024 #else |
| 1021 if ((addr & 1) == 0) { | 1025 if ((addr & 1) == 0) { |
| 1022 uint16_t* ptr = reinterpret_cast<uint16_t*>(addr); | 1026 uint16_t* ptr = reinterpret_cast<uint16_t*>(addr); |
| 1023 return *ptr; | 1027 return *ptr; |
| 1024 } | 1028 } |
| 1025 PrintF("Unaligned unsigned halfword read at 0x%08x, pc=%p\n", addr, instr); | 1029 PrintF("Unaligned unsigned halfword read at 0x%08x, pc=0x%08" V8PRIxPTR "\n", |
| 1030 addr, |
| 1031 reinterpret_cast<intptr_t>(instr)); |
| 1026 UNIMPLEMENTED(); | 1032 UNIMPLEMENTED(); |
| 1027 return 0; | 1033 return 0; |
| 1028 #endif | 1034 #endif |
| 1029 } | 1035 } |
| 1030 | 1036 |
| 1031 | 1037 |
| 1032 int16_t Simulator::ReadH(int32_t addr, Instr* instr) { | 1038 int16_t Simulator::ReadH(int32_t addr, Instr* instr) { |
| 1033 #if V8_TARGET_CAN_READ_UNALIGNED | 1039 #if V8_TARGET_CAN_READ_UNALIGNED |
| 1034 int16_t* ptr = reinterpret_cast<int16_t*>(addr); | 1040 int16_t* ptr = reinterpret_cast<int16_t*>(addr); |
| 1035 return *ptr; | 1041 return *ptr; |
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| 1049 #if V8_TARGET_CAN_READ_UNALIGNED | 1055 #if V8_TARGET_CAN_READ_UNALIGNED |
| 1050 uint16_t* ptr = reinterpret_cast<uint16_t*>(addr); | 1056 uint16_t* ptr = reinterpret_cast<uint16_t*>(addr); |
| 1051 *ptr = value; | 1057 *ptr = value; |
| 1052 return; | 1058 return; |
| 1053 #else | 1059 #else |
| 1054 if ((addr & 1) == 0) { | 1060 if ((addr & 1) == 0) { |
| 1055 uint16_t* ptr = reinterpret_cast<uint16_t*>(addr); | 1061 uint16_t* ptr = reinterpret_cast<uint16_t*>(addr); |
| 1056 *ptr = value; | 1062 *ptr = value; |
| 1057 return; | 1063 return; |
| 1058 } | 1064 } |
| 1059 PrintF("Unaligned unsigned halfword write at 0x%08x, pc=%p\n", addr, instr); | 1065 PrintF("Unaligned unsigned halfword write at 0x%08x, pc=0x%08" V8PRIxPTR "\n", |
| 1066 addr, |
| 1067 reinterpret_cast<intptr_t>(instr)); |
| 1060 UNIMPLEMENTED(); | 1068 UNIMPLEMENTED(); |
| 1061 #endif | 1069 #endif |
| 1062 } | 1070 } |
| 1063 | 1071 |
| 1064 | 1072 |
| 1065 void Simulator::WriteH(int32_t addr, int16_t value, Instr* instr) { | 1073 void Simulator::WriteH(int32_t addr, int16_t value, Instr* instr) { |
| 1066 #if V8_TARGET_CAN_READ_UNALIGNED | 1074 #if V8_TARGET_CAN_READ_UNALIGNED |
| 1067 int16_t* ptr = reinterpret_cast<int16_t*>(addr); | 1075 int16_t* ptr = reinterpret_cast<int16_t*>(addr); |
| 1068 *ptr = value; | 1076 *ptr = value; |
| 1069 return; | 1077 return; |
| 1070 #else | 1078 #else |
| 1071 if ((addr & 1) == 0) { | 1079 if ((addr & 1) == 0) { |
| 1072 int16_t* ptr = reinterpret_cast<int16_t*>(addr); | 1080 int16_t* ptr = reinterpret_cast<int16_t*>(addr); |
| 1073 *ptr = value; | 1081 *ptr = value; |
| 1074 return; | 1082 return; |
| 1075 } | 1083 } |
| 1076 PrintF("Unaligned halfword write at 0x%08x, pc=%p\n", addr, instr); | 1084 PrintF("Unaligned halfword write at 0x%08x, pc=0x%08" V8PRIxPTR "\n", |
| 1085 addr, |
| 1086 reinterpret_cast<intptr_t>(instr)); |
| 1077 UNIMPLEMENTED(); | 1087 UNIMPLEMENTED(); |
| 1078 #endif | 1088 #endif |
| 1079 } | 1089 } |
| 1080 | 1090 |
| 1081 | 1091 |
| 1082 uint8_t Simulator::ReadBU(int32_t addr) { | 1092 uint8_t Simulator::ReadBU(int32_t addr) { |
| 1083 uint8_t* ptr = reinterpret_cast<uint8_t*>(addr); | 1093 uint8_t* ptr = reinterpret_cast<uint8_t*>(addr); |
| 1084 return *ptr; | 1094 return *ptr; |
| 1085 } | 1095 } |
| 1086 | 1096 |
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| 3021 uintptr_t address = *stack_slot; | 3031 uintptr_t address = *stack_slot; |
| 3022 set_register(sp, current_sp + sizeof(uintptr_t)); | 3032 set_register(sp, current_sp + sizeof(uintptr_t)); |
| 3023 return address; | 3033 return address; |
| 3024 } | 3034 } |
| 3025 | 3035 |
| 3026 } } // namespace assembler::arm | 3036 } } // namespace assembler::arm |
| 3027 | 3037 |
| 3028 #endif // USE_SIMULATOR | 3038 #endif // USE_SIMULATOR |
| 3029 | 3039 |
| 3030 #endif // V8_TARGET_ARCH_ARM | 3040 #endif // V8_TARGET_ARCH_ARM |
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