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dpavlin |
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/* |
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* The HT Editor |
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* asm.h |
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* |
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* Copyright (C) 1999-2002 Stefan Weyergraf |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License version 2 as |
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* published by the Free Software Foundation. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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*/ |
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#ifndef __ASM_H__ |
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#define __ASM_H__ |
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#include "tools/data.h" |
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#define CPU_X86 1 |
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#define MAX_INSN_SIZE 16 |
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struct CPU_ADDR { |
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union { |
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struct { |
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uint16 seg; |
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uint32 offset; |
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} addr32; |
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struct { |
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uint64 addr; |
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} flat64; |
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}; |
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}; |
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struct asm_code { |
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asm_code *next; |
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uint32 size; |
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byte data[MAX_INSN_SIZE]; |
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void *context; |
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}; |
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typedef void dis_insn; |
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typedef void asm_insn; |
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/* |
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* CLASS assembler |
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*/ |
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class Assembler: public Object { |
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protected: |
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int (*imm_eval_proc)(void *context, char **s, uint32 *v); |
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void *imm_eval_context; |
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asm_code *codes; |
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asm_code code; |
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char error_msg[256]; |
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bool error; |
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int options; |
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bool bigendian; |
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void emitbyte(byte b); |
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void emitword(uint16 w); |
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void emitdword(uint32 d); |
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void free_asm_codes(); |
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void deletecode(asm_code *c); |
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void clearcode(); |
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void newcode(); |
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void pushcode(); |
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public: |
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Assembler(bool bigendian); |
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~Assembler(); |
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/* new */ |
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virtual asm_insn *alloc_insn(); |
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virtual asm_code *encode(asm_insn *asm_insn, int options, CPU_ADDR cur_address); |
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char *get_error_msg(); |
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virtual char *get_name(); |
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virtual int translate_str(asm_insn *asm_insn, const char *s); |
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void set_error_msg(char *format, ...); |
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void set_imm_eval_proc(int (*imm_eval_proc)(void *context, char **s, uint32 *v), void *imm_eval_context); |
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asm_code *shortest(asm_code *codes); |
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}; |
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/* |
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* CLASS disassembler |
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*/ |
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/* generic disassembler styles */ |
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#define DIS_STYLE_HIGHLIGHT 0x80000000 /* create highlighting information in strf() */ |
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#define DIS_STYLE_HEX_CSTYLE 0x40000000 /* IF SET: mov eax, 0x12345678 ELSE: mov eax, 12345678 */ |
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#define DIS_STYLE_HEX_ASMSTYLE 0x20000000 /* IF SET: mov eax, 12345678h ELSE: mov eax, 12345678 */ |
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#define DIS_STYLE_HEX_UPPERCASE 0x10000000 /* IF SET: mov eax, 5678ABCD ELSE: mov eax, 5678abcd */ |
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#define DIS_STYLE_HEX_NOZEROPAD 0x08000000 /* IF SET: mov eax, 8002344 ELSE: mov eax, 008002344 */ |
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#define DIS_STYLE_SIGNED 0x04000000 /* IF SET: mov eax, -1 ELSE: mov eax, 0ffffffffh */ |
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#define DIS_STYLE_TABSIZE 8 |
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extern char* (*addr_sym_func)(CPU_ADDR addr, int *symstrlen, void *context); |
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extern void* addr_sym_func_context; |
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enum AsmSyntaxHighlightEnum { |
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e_cs_default=0, |
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e_cs_comment, |
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e_cs_number, |
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e_cs_symbol, |
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e_cs_string |
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}; |
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class Disassembler: public Object { |
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protected: |
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int options; |
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bool highlight; |
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const char *get_cs(AsmSyntaxHighlightEnum style); |
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void hexd(char **s, int size, int options, int imm); |
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void enable_highlighting(); |
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void disable_highlighting(); |
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public: |
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Disassembler(); |
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~Disassembler(); |
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/* new */ |
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virtual dis_insn *createInvalidInsn(); |
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virtual dis_insn *decode(const byte *code, int maxlen, CPU_ADDR cur_address)=0; |
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virtual dis_insn *duplicateInsn(dis_insn *disasm_insn)=0; |
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virtual void getOpcodeMetrics(int &min_length, int &max_length, int &min_look_ahead, int &avg_look_ahead, int &addr_align)=0; |
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virtual byte getSize(dis_insn *disasm_insn)=0; |
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virtual char *getName()=0; |
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virtual bool selectNext(dis_insn *disasm_insn); |
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virtual char *str(dis_insn *disasm_insn, int style); |
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virtual char *strf(dis_insn *disasm_insn, int style, char *format)=0; |
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virtual bool validInsn(dis_insn *disasm_insn)=0; |
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}; |
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/***************************************************************************** |
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* The strf() format * |
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***************************************************************************** |
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String Action |
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-------------------------------------------------- |
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%x substitute expression with symbol "x" |
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?xy...y if symbol "x" is undefined leave out the whole expression, |
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otherwise subsitute expression with string between the two "y"s |
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Symbol Desc |
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-------------------------------------------------- |
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p prefix |
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n name |
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1 first operand |
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2 second operand |
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3 third operand |
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*/ |
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#define DISASM_STRF_VAR '%' |
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#define DISASM_STRF_COND '?' |
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#define DISASM_STRF_PREFIX 'p' |
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#define DISASM_STRF_NAME 'n' |
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#define DISASM_STRF_FIRST '1' |
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#define DISASM_STRF_SECOND '2' |
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#define DISASM_STRF_THIRD '3' |
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#define DISASM_STRF_DEFAULT_FORMAT "?p#%p #%n\t%1?2#, %2?3/, %3/#" |
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#define DISASM_STRF_SMALL_FORMAT "?p#%p #%n?1- %1?2#,%2?3/,%3/#-" |
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#define ATOM_DISASM_X86 MAGICD("DIS\x01") |
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#define ATOM_DISASM_ALPHA MAGICD("DIS\x02") |
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#define ATOM_DISASM_JAVA MAGICD("DIS\x03") |
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#define ATOM_DISASM_IA64 MAGICD("DIS\x04") |
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#define ATOM_DISASM_IL MAGICD("DIS\x05") |
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#define ATOM_DISASM_X86_VXD MAGICD("DIS\x06") |
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#define ASM_SYNTAX_DEFAULT "\\@d" |
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#define ASM_SYNTAX_COMMENT "\\@#" |
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#define ASM_SYNTAX_NUMBER "\\@n" |
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#define ASM_SYNTAX_SYMBOL "\\@c" |
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#define ASM_SYNTAX_STRING "\\@s" |
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bool init_asm(); |
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void done_asm(); |
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#endif /* __ASM_H__ */ |
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