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Side by Side Diff: runtime/vm/simulator_arm.h

Issue 12381034: Second codegen test passing on ARM (simulated). (Closed) Base URL: http://dart.googlecode.com/svn/branches/bleeding_edge/dart/
Patch Set: Created 7 years, 9 months ago
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1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file 1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file
2 // for details. All rights reserved. Use of this source code is governed by a 2 // for details. All rights reserved. Use of this source code is governed by a
3 // BSD-style license that can be found in the LICENSE file. 3 // BSD-style license that can be found in the LICENSE file.
4 4
5 // Declares a Simulator for ARM instructions if we are not generating a native 5 // Declares a Simulator for ARM instructions if we are not generating a native
6 // ARM binary. This Simulator allows us to run and debug ARM code generation on 6 // ARM binary. This Simulator allows us to run and debug ARM code generation on
7 // regular desktop machines. 7 // regular desktop machines.
8 // Dart calls into generated code by "calling" the InvokeDartCode stub, 8 // Dart calls into generated code by "calling" the InvokeDartCode stub,
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 ARM HW platform. 10 // on a ARM HW platform.
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71 int32_t parameter3, 71 int32_t parameter3,
72 int32_t parameter4); 72 int32_t parameter4);
73 73
74 // Implementation of atomic compare and exchange in the same synchronization 74 // Implementation of atomic compare and exchange in the same synchronization
75 // domain as other synchronization primitive instructions (e.g. ldrex, strex). 75 // domain as other synchronization primitive instructions (e.g. ldrex, strex).
76 static uword CompareExchange(uword* address, 76 static uword CompareExchange(uword* address,
77 uword compare_value, 77 uword compare_value,
78 uword new_value); 78 uword new_value);
79 79
80 // Runtime call support. 80 // Runtime call support.
81 static uword RedirectExternalReference(void* function, 81 static uword RedirectExternalReference(uword function,
82 uint32_t argument_count); 82 uint32_t argument_count);
83 83
84 void Longjmp(int32_t pc, int32_t sp, int32_t fp, const Instance& object); 84 void Longjmp(int32_t pc, int32_t sp, int32_t fp, const Instance& object);
85 85
86 private: 86 private:
87 // Known bad pc value to ensure that the simulator does not execute 87 // Known bad pc value to ensure that the simulator does not execute
88 // without being properly setup. 88 // without being properly setup.
89 static const uword kBadLR = -1; 89 static const uword kBadLR = -1;
90 // A pc value used to signal the simulator to stop execution. Generally 90 // A pc value used to signal the simulator to stop execution. Generally
91 // the lr is set to this value on transition from native C code to 91 // the lr is set to this value on transition from native C code to
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220 } 220 }
221 221
222 friend class SimulatorDebugger; 222 friend class SimulatorDebugger;
223 friend class SimulatorSetjmpBuffer; 223 friend class SimulatorSetjmpBuffer;
224 DISALLOW_COPY_AND_ASSIGN(Simulator); 224 DISALLOW_COPY_AND_ASSIGN(Simulator);
225 }; 225 };
226 226
227 } // namespace dart 227 } // namespace dart
228 228
229 #endif // VM_SIMULATOR_ARM_H_ 229 #endif // VM_SIMULATOR_ARM_H_
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