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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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