1a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// Copyright 2006-2008 the V8 project authors. All rights reserved.
2b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// Use of this source code is governed by a BSD-style license that can be
3b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// found in the LICENSE file.
4a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block
5a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block#ifndef V8_DISASSEMBLER_H_
6a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block#define V8_DISASSEMBLER_H_
7a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block
8b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#include "src/allocation.h"
9257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch
10a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blocknamespace v8 {
11a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blocknamespace internal {
12a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block
13a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockclass Disassembler : public AllStatic {
14a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block public:
15a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block  // Print the bytes in the interval [begin, end) into f.
16a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block  static void Dump(FILE* f, byte* begin, byte* end);
17a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block
18a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block  // Decode instructions in the the interval [begin, end) and print the
19a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block  // code into f. Returns the number of bytes disassembled or 1 if no
20a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block  // instruction could be decoded.
21b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch  static int Decode(Isolate* isolate, FILE* f, byte* begin, byte* end);
22a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block
23a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block  // Decode instructions in code.
24a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block  static void Decode(FILE* f, Code* code);
25a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block private:
26a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block  // Decode instruction at pc and print disassembled instruction into f.
27a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block  // Returns the instruction length in bytes, or 1 if the instruction could
28a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block  // not be decoded.  The number of characters written is written into
29a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block  // the out parameter char_count.
30a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block  static int Decode(FILE* f, byte* pc, int* char_count);
31a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block};
32a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block
33a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} }  // namespace v8::internal
34a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block
35a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block#endif  // V8_DISASSEMBLER_H_
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