1/* ----------------------------------------------------------------------------- 2 * input.h 3 * 4 * Copyright (c) 2006, Vivek Mohan <vivek@sig9.com> 5 * All rights reserved. See LICENSE 6 * ----------------------------------------------------------------------------- 7 */ 8#ifndef UD_INPUT_H 9#define UD_INPUT_H 10 11#include "types.h" 12 13uint8_t inp_next(struct ud*); 14uint8_t inp_peek(struct ud*); 15uint8_t inp_uint8(struct ud*); 16uint16_t inp_uint16(struct ud*); 17uint32_t inp_uint32(struct ud*); 18uint64_t inp_uint64(struct ud*); 19void inp_move(struct ud*, size_t); 20void inp_back(struct ud*); 21 22/* inp_init() - Initializes the input system. */ 23#define inp_init(u) \ 24do { \ 25 u->inp_curr = 0; \ 26 u->inp_fill = 0; \ 27 u->inp_ctr = 0; \ 28 u->inp_end = 0; \ 29} while (0) 30 31/* inp_start() - Should be called before each de-code operation. */ 32#define inp_start(u) u->inp_ctr = 0 33 34/* inp_back() - Resets the current pointer to its position before the current 35 * instruction disassembly was started. 36 */ 37#define inp_reset(u) \ 38do { \ 39 u->inp_curr -= u->inp_ctr; \ 40 u->inp_ctr = 0; \ 41} while (0) 42 43/* inp_sess() - Returns the pointer to current session. */ 44#define inp_sess(u) (u->inp_sess) 45 46/* inp_cur() - Returns the current input byte. */ 47#define inp_curr(u) ((u)->inp_cache[(u)->inp_curr]) 48 49#endif 50