1 // Copyright 2008-2009 the V8 project authors. All rights reserved.
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3 // modification, are permitted provided that the following conditions are
4 // met:
5 //
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27
28 // A light-weight assembler for the Irregexp byte code.
29
30
31 #include "v8.h"
32 #include "ast.h"
33 #include "bytecodes-irregexp.h"
34
35 #ifndef V8_REGEXP_MACRO_ASSEMBLER_IRREGEXP_INL_H_
36 #define V8_REGEXP_MACRO_ASSEMBLER_IRREGEXP_INL_H_
37
38 namespace v8 {
39 namespace internal {
40
41 #ifdef V8_INTERPRETED_REGEXP
42
Emit(uint32_t byte,uint32_t twenty_four_bits)43 void RegExpMacroAssemblerIrregexp::Emit(uint32_t byte,
44 uint32_t twenty_four_bits) {
45 uint32_t word = ((twenty_four_bits << BYTECODE_SHIFT) | byte);
46 ASSERT(pc_ <= buffer_.length());
47 if (pc_ + 3 >= buffer_.length()) {
48 Expand();
49 }
50 *reinterpret_cast<uint32_t*>(buffer_.start() + pc_) = word;
51 pc_ += 4;
52 }
53
54
Emit16(uint32_t word)55 void RegExpMacroAssemblerIrregexp::Emit16(uint32_t word) {
56 ASSERT(pc_ <= buffer_.length());
57 if (pc_ + 1 >= buffer_.length()) {
58 Expand();
59 }
60 *reinterpret_cast<uint16_t*>(buffer_.start() + pc_) = word;
61 pc_ += 2;
62 }
63
64
Emit32(uint32_t word)65 void RegExpMacroAssemblerIrregexp::Emit32(uint32_t word) {
66 ASSERT(pc_ <= buffer_.length());
67 if (pc_ + 3 >= buffer_.length()) {
68 Expand();
69 }
70 *reinterpret_cast<uint32_t*>(buffer_.start() + pc_) = word;
71 pc_ += 4;
72 }
73
74 #endif // V8_INTERPRETED_REGEXP
75
76 } } // namespace v8::internal
77
78 #endif // V8_REGEXP_MACRO_ASSEMBLER_IRREGEXP_INL_H_
79