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ager@chromium.org381abbb2009-02-25 13:23:22 +00001// Copyright 2008-2009 the V8 project authors. All rights reserved.
mads.s.ager@gmail.com9a4089a2008-09-01 08:55:01 +00002// Redistribution and use in source and binary forms, with or without
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27
ager@chromium.orga74f0da2008-12-03 16:05:52 +000028// A light-weight assembler for the Irregexp byte code.
mads.s.ager@gmail.com9a4089a2008-09-01 08:55:01 +000029
mads.s.ager@gmail.com9a4089a2008-09-01 08:55:01 +000030
ager@chromium.orga74f0da2008-12-03 16:05:52 +000031#include "v8.h"
32#include "ast.h"
33#include "bytecodes-irregexp.h"
34
ager@chromium.org5ec48922009-05-05 07:25:34 +000035#ifndef V8_REGEXP_MACRO_ASSEMBLER_IRREGEXP_INL_H_
36#define V8_REGEXP_MACRO_ASSEMBLER_IRREGEXP_INL_H_
ager@chromium.orga74f0da2008-12-03 16:05:52 +000037
kasperl@chromium.org71affb52009-05-26 05:44:31 +000038namespace v8 {
39namespace internal {
ager@chromium.orga74f0da2008-12-03 16:05:52 +000040
ricow@chromium.orgc9c80822010-04-21 08:22:37 +000041#ifdef V8_INTERPRETED_REGEXP
ager@chromium.orga74f0da2008-12-03 16:05:52 +000042
ager@chromium.orgddb913d2009-01-27 10:01:48 +000043void RegExpMacroAssemblerIrregexp::Emit(uint32_t byte,
44 uint32_t twenty_four_bits) {
45 uint32_t word = ((twenty_four_bits << BYTECODE_SHIFT) | byte);
ager@chromium.orga74f0da2008-12-03 16:05:52 +000046 ASSERT(pc_ <= buffer_.length());
ager@chromium.orgddb913d2009-01-27 10:01:48 +000047 if (pc_ + 3 >= buffer_.length()) {
ager@chromium.orga74f0da2008-12-03 16:05:52 +000048 Expand();
49 }
ager@chromium.orgddb913d2009-01-27 10:01:48 +000050 *reinterpret_cast<uint32_t*>(buffer_.start() + pc_) = word;
51 pc_ += 4;
ager@chromium.orga74f0da2008-12-03 16:05:52 +000052}
53
54
55void RegExpMacroAssemblerIrregexp::Emit16(uint32_t word) {
56 ASSERT(pc_ <= buffer_.length());
57 if (pc_ + 1 >= buffer_.length()) {
58 Expand();
59 }
ager@chromium.orgddb913d2009-01-27 10:01:48 +000060 *reinterpret_cast<uint16_t*>(buffer_.start() + pc_) = word;
ager@chromium.orga74f0da2008-12-03 16:05:52 +000061 pc_ += 2;
62}
63
64
65void RegExpMacroAssemblerIrregexp::Emit32(uint32_t word) {
66 ASSERT(pc_ <= buffer_.length());
67 if (pc_ + 3 >= buffer_.length()) {
68 Expand();
69 }
ager@chromium.orgddb913d2009-01-27 10:01:48 +000070 *reinterpret_cast<uint32_t*>(buffer_.start() + pc_) = word;
ager@chromium.orga74f0da2008-12-03 16:05:52 +000071 pc_ += 4;
72}
73
ricow@chromium.orgc9c80822010-04-21 08:22:37 +000074#endif // V8_INTERPRETED_REGEXP
ager@chromium.orga74f0da2008-12-03 16:05:52 +000075
76} } // namespace v8::internal
ager@chromium.org5ec48922009-05-05 07:25:34 +000077
78#endif // V8_REGEXP_MACRO_ASSEMBLER_IRREGEXP_INL_H_