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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 the V8 project authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include <limits.h> // For LONG_MIN, LONG_MAX. | 5 #include <limits.h> // For LONG_MIN, LONG_MAX. |
6 | 6 |
7 #if V8_TARGET_ARCH_MIPS64 | 7 #if V8_TARGET_ARCH_MIPS64 |
8 | 8 |
9 #include "src/base/division-by-constant.h" | 9 #include "src/base/division-by-constant.h" |
10 #include "src/bootstrapper.h" | 10 #include "src/bootstrapper.h" |
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5019 // Save the frame pointer and the context in top. | 5019 // Save the frame pointer and the context in top. |
5020 li(t8, Operand(ExternalReference(Isolate::kCEntryFPAddress, isolate()))); | 5020 li(t8, Operand(ExternalReference(Isolate::kCEntryFPAddress, isolate()))); |
5021 sd(fp, MemOperand(t8)); | 5021 sd(fp, MemOperand(t8)); |
5022 li(t8, Operand(ExternalReference(Isolate::kContextAddress, isolate()))); | 5022 li(t8, Operand(ExternalReference(Isolate::kContextAddress, isolate()))); |
5023 sd(cp, MemOperand(t8)); | 5023 sd(cp, MemOperand(t8)); |
5024 | 5024 |
5025 const int frame_alignment = MacroAssembler::ActivationFrameAlignment(); | 5025 const int frame_alignment = MacroAssembler::ActivationFrameAlignment(); |
5026 if (save_doubles) { | 5026 if (save_doubles) { |
5027 // The stack is already aligned to 0 modulo 8 for stores with sdc1. | 5027 // The stack is already aligned to 0 modulo 8 for stores with sdc1. |
5028 int kNumOfSavedRegisters = FPURegister::kMaxNumRegisters / 2; | 5028 int kNumOfSavedRegisters = FPURegister::kMaxNumRegisters / 2; |
5029 int space = kNumOfSavedRegisters * kDoubleSize ; | 5029 int space = kNumOfSavedRegisters * kDoubleSize; |
5030 Dsubu(sp, sp, Operand(space)); | 5030 Dsubu(sp, sp, Operand(space)); |
5031 // Remember: we only need to save every 2nd double FPU value. | 5031 // Remember: we only need to save every 2nd double FPU value. |
5032 for (int i = 0; i < kNumOfSavedRegisters; i++) { | 5032 for (int i = 0; i < kNumOfSavedRegisters; i++) { |
5033 FPURegister reg = FPURegister::from_code(2 * i); | 5033 FPURegister reg = FPURegister::from_code(2 * i); |
5034 sdc1(reg, MemOperand(sp, i * kDoubleSize)); | 5034 sdc1(reg, MemOperand(sp, i * kDoubleSize)); |
5035 } | 5035 } |
5036 } | 5036 } |
5037 | 5037 |
5038 // Reserve place for the return address, stack space and an optional slot | 5038 // Reserve place for the return address, stack space and an optional slot |
5039 // (used by the DirectCEntryStub to hold the return value if a struct is | 5039 // (used by the DirectCEntryStub to hold the return value if a struct is |
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6111 if (mag.shift > 0) sra(result, result, mag.shift); | 6111 if (mag.shift > 0) sra(result, result, mag.shift); |
6112 srl(at, dividend, 31); | 6112 srl(at, dividend, 31); |
6113 Addu(result, result, Operand(at)); | 6113 Addu(result, result, Operand(at)); |
6114 } | 6114 } |
6115 | 6115 |
6116 | 6116 |
6117 } // namespace internal | 6117 } // namespace internal |
6118 } // namespace v8 | 6118 } // namespace v8 |
6119 | 6119 |
6120 #endif // V8_TARGET_ARCH_MIPS64 | 6120 #endif // V8_TARGET_ARCH_MIPS64 |
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