1/* 2 3PCL6 Disassembler 4 5Copyright (c) 2003 Haiku. 6 7Author: 8 Michael Pfeiffer 9 10Permission is hereby granted, free of charge, to any person obtaining a copy of 11this software and associated documentation files (the "Software"), to deal in 12the Software without restriction, including without limitation the rights to 13use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies 14of the Software, and to permit persons to whom the Software is furnished to do 15so, subject to the following conditions: 16 17The above copyright notice and this permission notice shall be included in all 18copies or substantial portions of the Software. 19 20THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 21IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 22FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 23AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 24LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 25OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 26THE SOFTWARE. 27 28*/ 29 30#ifndef _DISASM_H 31#define _DISASM_H 32 33#include "jetlib.h" 34#include <SupportDefs.h> 35#include <List.h> 36 37class InputStream { 38 uint8 fBuffer; // one byte only 39 int8 fBufferSize; 40 uint32 fPos; 41 42public: 43 InputStream() : fBufferSize(0), fPos(0) { } 44 virtual ~InputStream() {}; 45 virtual int RawRead(void* buffer, int size) = 0; 46 int Read(void* buffer, int size); 47 int Pos() const { return fPos; } 48 bool PutUByte(uint8 v); 49 bool ReadUByte(uint8& v); 50 bool ReadUInt16(uint16& v); 51 bool ReadUInt32(uint32& v); 52 bool ReadSInt16(int16& v); 53 bool ReadSInt32(int32& v); 54 bool ReadReal32(float& v); 55}; 56 57class File : public InputStream { 58 FILE* fFile; 59public: 60 File(const char* filename); 61 ~File(); 62 bool InitCheck() { return fFile != NULL; } 63 int RawRead(void* buffer, int size); 64}; 65 66typedef struct { 67 uint8 value; 68 const char* name; 69} AttrValue; 70 71#define NUM_OF_ELEMS(array, type) (sizeof(array) / sizeof(type)) 72 73class Disasm { 74public: 75 Disasm(InputStream* stream) : fStream(stream), fVerbose(false) { }; 76 void SetVerbose(bool v) { fVerbose = v; } 77 void Print(); 78 79private: 80 InputStream* fStream; 81 BList fArgs; 82 bool fVerbose; 83 84 void Error(const char* text); 85 bool Expect(const char* text); 86 bool SkipTo(const char* text); 87 bool ReadNumber(int32& n); 88 bool ParsePJL(); 89 90 void PushArg(struct ATTRIBUTE* attr) { fArgs.AddItem(attr); } 91 int NumOfArgs() { return fArgs.CountItems(); } 92 struct ATTRIBUTE* ArgAt(int i) { return (struct ATTRIBUTE*)fArgs.ItemAt(i); } 93 void DeleteAttr(struct ATTRIBUTE* attr); 94 void PrintAttr(struct ATTRIBUTE* attr); 95 void ClearAttrs(); 96 97 bool DecodeOperator(uint8 byte); 98 struct ATTRIBUTE* ReadData(uint8 byte); 99 bool PushData(uint8 byte); 100 bool ReadArrayLength(uint32& length); 101 bool ReadArray(uint8 type, uint32 length, struct ATTRIBUTE* attr); 102 const char* AttributeName(uint8 id); 103 void GenericPrintAttribute(uint8 id); 104 void PrintAttributeValue(uint8 id, const AttrValue* table, int tableSize); 105 bool DecodeAttribute(uint8 byte); 106 bool DecodeEmbedData(uint8 byte); 107 bool ParsePCL6(); 108 109 bool IsOperator(uint8 byte) const { return byte >= 0x41 && byte <= 0xb9; } 110 bool IsDataType(uint8 byte) const { return byte >= 0xc0 && byte <= 0xef; } 111 bool IsAttribute(uint8 byte) const { return byte >= 0xf8 && byte <= 0xf9; } 112 bool IsEmbedData(uint8 byte) const { return byte >= 0xfa && byte <= 0xfb; } 113 bool IsWhiteSpace(uint8 byte) const { return byte == 0 || byte >= 0x09 && byte <= 0x0d || byte == 0x20; } 114 bool IsEsc(uint8 byte) const { return byte == 0x1b; } 115}; 116 117#endif 118