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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 MIPS instructions if we are not generating a native | 5 // Declares a Simulator for MIPS instructions if we are not generating a native |
| 6 // MIPS binary. This Simulator allows us to run and debug MIPS code generation | 6 // MIPS binary. This Simulator allows us to run and debug MIPS code generation |
| 7 // on regular desktop machines. | 7 // on 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 MIPS HW platform. | 10 // on a MIPS HW platform. |
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| 100 | 100 |
| 101 // Dart generally calls into generated code with 5 parameters. This is a | 101 // Dart generally calls into generated code with 5 parameters. This is a |
| 102 // convenience function, which sets up the simulator state and grabs the | 102 // convenience function, which sets up the simulator state and grabs the |
| 103 // result on return. When fp_return is true the return value is the D0 | 103 // result on return. When fp_return is true the return value is the D0 |
| 104 // floating point register. Otherwise, the return value is V1:V0. | 104 // floating point register. Otherwise, the return value is V1:V0. |
| 105 int64_t Call(int32_t entry, | 105 int64_t Call(int32_t entry, |
| 106 int32_t parameter0, | 106 int32_t parameter0, |
| 107 int32_t parameter1, | 107 int32_t parameter1, |
| 108 int32_t parameter2, | 108 int32_t parameter2, |
| 109 int32_t parameter3, | 109 int32_t parameter3, |
| 110 bool fp_return = false); | 110 bool fp_return = false, |
| 111 bool fp_args = false); |
| 111 | 112 |
| 112 // Runtime and native call support. | 113 // Runtime and native call support. |
| 113 enum CallKind { | 114 enum CallKind { |
| 114 kRuntimeCall, | 115 kRuntimeCall, |
| 115 kLeafRuntimeCall, | 116 kLeafRuntimeCall, |
| 116 kLeafFloatRuntimeCall, | 117 kLeafFloatRuntimeCall, |
| 117 kNativeCall | 118 kNativeCall |
| 118 }; | 119 }; |
| 119 static uword RedirectExternalReference(uword function, | 120 static uword RedirectExternalReference(uword function, |
| 120 CallKind call_kind, | 121 CallKind call_kind, |
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| 208 } | 209 } |
| 209 | 210 |
| 210 friend class SimulatorDebugger; | 211 friend class SimulatorDebugger; |
| 211 friend class SimulatorSetjmpBuffer; | 212 friend class SimulatorSetjmpBuffer; |
| 212 DISALLOW_COPY_AND_ASSIGN(Simulator); | 213 DISALLOW_COPY_AND_ASSIGN(Simulator); |
| 213 }; | 214 }; |
| 214 | 215 |
| 215 } // namespace dart | 216 } // namespace dart |
| 216 | 217 |
| 217 #endif // VM_SIMULATOR_MIPS_H_ | 218 #endif // VM_SIMULATOR_MIPS_H_ |
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