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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 // 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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| 918 registers_[ra] = bad_ra; | 918 registers_[ra] = bad_ra; |
| 919 InitializeCoverage(); | 919 InitializeCoverage(); |
| 920 for (int i = 0; i < kNumExceptions; i++) { | 920 for (int i = 0; i < kNumExceptions; i++) { |
| 921 exceptions[i] = 0; | 921 exceptions[i] = 0; |
| 922 } | 922 } |
| 923 | 923 |
| 924 last_debugger_input_ = NULL; | 924 last_debugger_input_ = NULL; |
| 925 } | 925 } |
| 926 | 926 |
| 927 | 927 |
| 928 Simulator::~Simulator() { |
| 929 } |
| 930 |
| 931 |
| 928 // When the generated code calls an external reference we need to catch that in | 932 // When the generated code calls an external reference we need to catch that in |
| 929 // the simulator. The external reference will be a function compiled for the | 933 // the simulator. The external reference will be a function compiled for the |
| 930 // host architecture. We need to call that function instead of trying to | 934 // host architecture. We need to call that function instead of trying to |
| 931 // execute it with the simulator. We do that by redirecting the external | 935 // execute it with the simulator. We do that by redirecting the external |
| 932 // reference to a swi (software-interrupt) instruction that is handled by | 936 // reference to a swi (software-interrupt) instruction that is handled by |
| 933 // the simulator. We write the original destination of the jump just at a known | 937 // the simulator. We write the original destination of the jump just at a known |
| 934 // offset from the swi instruction so the simulator knows what to call. | 938 // offset from the swi instruction so the simulator knows what to call. |
| 935 class Redirection { | 939 class Redirection { |
| 936 public: | 940 public: |
| 937 Redirection(void* external_function, ExternalReference::Type type) | 941 Redirection(void* external_function, ExternalReference::Type type) |
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| 2938 } | 2942 } |
| 2939 | 2943 |
| 2940 | 2944 |
| 2941 #undef UNSUPPORTED | 2945 #undef UNSUPPORTED |
| 2942 | 2946 |
| 2943 } } // namespace v8::internal | 2947 } } // namespace v8::internal |
| 2944 | 2948 |
| 2945 #endif // USE_SIMULATOR | 2949 #endif // USE_SIMULATOR |
| 2946 | 2950 |
| 2947 #endif // V8_TARGET_ARCH_MIPS | 2951 #endif // V8_TARGET_ARCH_MIPS |
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