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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_MIPS | 7 #if V8_TARGET_ARCH_MIPS |
8 | 8 |
9 #include "src/base/bits.h" | 9 #include "src/base/bits.h" |
10 #include "src/base/division-by-constant.h" | 10 #include "src/base/division-by-constant.h" |
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3888 | 3888 |
3889 void MacroAssembler::DebugBreak() { | 3889 void MacroAssembler::DebugBreak() { |
3890 PrepareCEntryArgs(0); | 3890 PrepareCEntryArgs(0); |
3891 PrepareCEntryFunction( | 3891 PrepareCEntryFunction( |
3892 ExternalReference(Runtime::kHandleDebuggerStatement, isolate())); | 3892 ExternalReference(Runtime::kHandleDebuggerStatement, isolate())); |
3893 CEntryStub ces(isolate(), 1); | 3893 CEntryStub ces(isolate(), 1); |
3894 DCHECK(AllowThisStubCall(&ces)); | 3894 DCHECK(AllowThisStubCall(&ces)); |
3895 Call(ces.GetCode(), RelocInfo::DEBUGGER_STATEMENT); | 3895 Call(ces.GetCode(), RelocInfo::DEBUGGER_STATEMENT); |
3896 } | 3896 } |
3897 | 3897 |
| 3898 void MacroAssembler::MaybeDropFrames() { |
| 3899 // Check whether we need to drop frames to restart a function on the stack. |
| 3900 ExternalReference restart_fp = |
| 3901 ExternalReference::debug_restart_fp_address(isolate()); |
| 3902 li(a1, Operand(restart_fp)); |
| 3903 lw(a1, MemOperand(a1)); |
| 3904 Jump(isolate()->builtins()->FrameDropperTrampoline(), RelocInfo::CODE_TARGET, |
| 3905 ne, a1, Operand(zero_reg)); |
| 3906 } |
3898 | 3907 |
3899 // --------------------------------------------------------------------------- | 3908 // --------------------------------------------------------------------------- |
3900 // Exception handling. | 3909 // Exception handling. |
3901 | 3910 |
3902 void MacroAssembler::PushStackHandler() { | 3911 void MacroAssembler::PushStackHandler() { |
3903 // Adjust this code if not the case. | 3912 // Adjust this code if not the case. |
3904 STATIC_ASSERT(StackHandlerConstants::kSize == 1 * kPointerSize); | 3913 STATIC_ASSERT(StackHandlerConstants::kSize == 1 * kPointerSize); |
3905 STATIC_ASSERT(StackHandlerConstants::kNextOffset == 0 * kPointerSize); | 3914 STATIC_ASSERT(StackHandlerConstants::kNextOffset == 0 * kPointerSize); |
3906 | 3915 |
3907 // Link the current handler as the next handler. | 3916 // Link the current handler as the next handler. |
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6526 if (mag.shift > 0) sra(result, result, mag.shift); | 6535 if (mag.shift > 0) sra(result, result, mag.shift); |
6527 srl(at, dividend, 31); | 6536 srl(at, dividend, 31); |
6528 Addu(result, result, Operand(at)); | 6537 Addu(result, result, Operand(at)); |
6529 } | 6538 } |
6530 | 6539 |
6531 | 6540 |
6532 } // namespace internal | 6541 } // namespace internal |
6533 } // namespace v8 | 6542 } // namespace v8 |
6534 | 6543 |
6535 #endif // V8_TARGET_ARCH_MIPS | 6544 #endif // V8_TARGET_ARCH_MIPS |
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