forked from KolibriOS/kolibrios
155 lines
4.0 KiB
C
155 lines
4.0 KiB
C
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/* -----------------------------------------------------------------------------
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* udis86.c
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*
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* Copyright (c) 2004, 2005, 2006, Vivek Mohan <vivek@sig9.com>
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* All rights reserved. See LICENSE
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* -----------------------------------------------------------------------------
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*/
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include "input.h"
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#include "extern.h"
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/* =============================================================================
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* ud_init() - Initializes ud_t object.
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* =============================================================================
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*/
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extern void
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ud_init(struct ud* u)
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{
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memset((void*)u, 0, sizeof(struct ud));
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ud_set_mode(u, 16);
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u->mnemonic = UD_Iinvalid;
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ud_set_pc(u, 0);
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#ifndef __UD_STANDALONE__
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ud_set_input_file(u, stdin);
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#endif /* __UD_STANDALONE__ */
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}
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/* =============================================================================
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* ud_disassemble() - disassembles one instruction and returns the number of
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* bytes disassembled. A zero means end of disassembly.
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* =============================================================================
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*/
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extern unsigned int
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ud_disassemble(struct ud* u)
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{
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if (ud_input_end(u))
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return 0;
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u->insn_buffer[0] = u->insn_hexcode[0] = 0;
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if (ud_decode(u) == 0)
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return 0;
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if (u->translator)
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u->translator(u);
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return ud_insn_len(u);
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}
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/* =============================================================================
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* ud_set_mode() - Set Disassemly Mode.
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* =============================================================================
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*/
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extern void
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ud_set_mode(struct ud* u, uint8_t m)
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{
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switch(m) {
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case 16:
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case 32:
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case 64: u->dis_mode = m ; return;
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default: u->dis_mode = 16; return;
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}
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}
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/* =============================================================================
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* ud_set_vendor() - Set vendor.
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* =============================================================================
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*/
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extern void
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ud_set_vendor(struct ud* u, unsigned v)
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{
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switch(v) {
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case UD_VENDOR_INTEL:
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u->vendor = v;
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break;
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default:
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u->vendor = UD_VENDOR_AMD;
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}
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}
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/* =============================================================================
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* ud_set_pc() - Sets code origin.
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* =============================================================================
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*/
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extern void
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ud_set_pc(struct ud* u, uint64_t o)
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{
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u->pc = o;
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}
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/* =============================================================================
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* ud_set_syntax() - Sets the output syntax.
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* =============================================================================
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*/
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extern void
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ud_set_syntax(struct ud* u, void (*t)(struct ud*))
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{
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u->translator = t;
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}
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/* =============================================================================
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* ud_insn() - returns the disassembled instruction
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* =============================================================================
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*/
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extern char*
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ud_insn_asm(struct ud* u)
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{
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return u->insn_buffer;
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}
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/* =============================================================================
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* ud_insn_offset() - Returns the offset.
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* =============================================================================
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*/
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extern uint64_t
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ud_insn_off(struct ud* u)
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{
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return u->insn_offset;
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}
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/* =============================================================================
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* ud_insn_hex() - Returns hex form of disassembled instruction.
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* =============================================================================
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*/
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extern char*
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ud_insn_hex(struct ud* u)
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{
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return u->insn_hexcode;
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}
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/* =============================================================================
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* ud_insn_ptr() - Returns code disassembled.
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* =============================================================================
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*/
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extern uint8_t*
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ud_insn_ptr(struct ud* u)
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{
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return u->inp_sess;
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}
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/* =============================================================================
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* ud_insn_len() - Returns the count of bytes disassembled.
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* =============================================================================
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*/
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extern unsigned int
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ud_insn_len(struct ud* u)
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{
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return u->inp_ctr;
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}
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