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1 // Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2011, 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 #include "vm/globals.h" | 5 #include "vm/globals.h" |
6 #if defined(TARGET_ARCH_IA32) | 6 #if defined(TARGET_ARCH_IA32) |
7 | 7 |
8 #include "vm/assembler_macros.h" | 8 #include "vm/assembler_macros.h" |
9 | 9 |
10 #include "vm/assembler.h" | 10 #include "vm/assembler.h" |
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29 // instance_reg: potential next object start. | 29 // instance_reg: potential next object start. |
30 __ cmpl(instance_reg, Address::Absolute(heap->EndAddress())); | 30 __ cmpl(instance_reg, Address::Absolute(heap->EndAddress())); |
31 __ j(ABOVE_EQUAL, failure, Assembler::kNearJump); | 31 __ j(ABOVE_EQUAL, failure, Assembler::kNearJump); |
32 // Successfully allocated the object, now update top to point to | 32 // Successfully allocated the object, now update top to point to |
33 // next object start and store the class in the class field of object. | 33 // next object start and store the class in the class field of object. |
34 __ movl(Address::Absolute(heap->TopAddress()), instance_reg); | 34 __ movl(Address::Absolute(heap->TopAddress()), instance_reg); |
35 ASSERT(instance_size >= kHeapObjectTag); | 35 ASSERT(instance_size >= kHeapObjectTag); |
36 __ subl(instance_reg, Immediate(instance_size - kHeapObjectTag)); | 36 __ subl(instance_reg, Immediate(instance_size - kHeapObjectTag)); |
37 uword tags = 0; | 37 uword tags = 0; |
38 tags = RawObject::SizeTag::update(instance_size, tags); | 38 tags = RawObject::SizeTag::update(instance_size, tags); |
39 ASSERT(cls.id() != kIllegalObjectKind); | 39 ASSERT(cls.id() != kIllegalCid); |
40 tags = RawObject::ClassIdTag::update(cls.id(), tags); | 40 tags = RawObject::ClassIdTag::update(cls.id(), tags); |
41 __ movl(FieldAddress(instance_reg, Object::tags_offset()), Immediate(tags)); | 41 __ movl(FieldAddress(instance_reg, Object::tags_offset()), Immediate(tags)); |
42 } else { | 42 } else { |
43 __ jmp(failure); | 43 __ jmp(failure); |
44 } | 44 } |
45 } | 45 } |
46 | 46 |
47 | 47 |
48 void AssemblerMacros::EnterDartFrame(Assembler* assembler, | 48 void AssemblerMacros::EnterDartFrame(Assembler* assembler, |
49 intptr_t frame_size) { | 49 intptr_t frame_size) { |
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80 void AssemblerMacros::EnterStubFrame(Assembler* assembler) { | 80 void AssemblerMacros::EnterStubFrame(Assembler* assembler) { |
81 __ EnterFrame(0); | 81 __ EnterFrame(0); |
82 __ pushl(Immediate(0)); // Push 0 in the saved PC area for stub frames. | 82 __ pushl(Immediate(0)); // Push 0 in the saved PC area for stub frames. |
83 } | 83 } |
84 | 84 |
85 #undef __ | 85 #undef __ |
86 | 86 |
87 } // namespace dart | 87 } // namespace dart |
88 | 88 |
89 #endif // defined TARGET_ARCH_IA32 | 89 #endif // defined TARGET_ARCH_IA32 |
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