| bbe45369 |
1 | /* udis86 - libudis86/input.h |
| 2 | * |
| 3 | * Copyright (c) 2002-2009 Vivek Thampi |
| 4 | * All rights reserved. |
| 5 | * |
| 6 | * Redistribution and use in source and binary forms, with or without modification, |
| 7 | * are permitted provided that the following conditions are met: |
| 8 | * |
| 9 | * * Redistributions of source code must retain the above copyright notice, |
| 10 | * this list of conditions and the following disclaimer. |
| 11 | * * Redistributions in binary form must reproduce the above copyright notice, |
| 12 | * this list of conditions and the following disclaimer in the documentation |
| 13 | * and/or other materials provided with the distribution. |
| 14 | * |
| 15 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND |
| 16 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
| 17 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| 18 | * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR |
| 19 | * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
| 20 | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| 21 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON |
| 22 | * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 23 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| 24 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 25 | */ |
| 26 | #ifndef UD_INPUT_H |
| 27 | #define UD_INPUT_H |
| 28 | |
| 29 | #include "types.h" |
| 30 | |
| 31 | uint8_t inp_next(struct ud*); |
| 32 | uint8_t inp_peek(struct ud*); |
| 33 | uint8_t inp_uint8(struct ud*); |
| 34 | uint16_t inp_uint16(struct ud*); |
| 35 | uint32_t inp_uint32(struct ud*); |
| 36 | uint64_t inp_uint64(struct ud*); |
| 37 | void inp_move(struct ud*, size_t); |
| 38 | void inp_back(struct ud*); |
| 39 | |
| 40 | /* inp_init() - Initializes the input system. */ |
| 41 | #define inp_init(u) \ |
| 42 | do { \ |
| 43 | u->inp_curr = 0; \ |
| 44 | u->inp_fill = 0; \ |
| 45 | u->inp_ctr = 0; \ |
| 46 | u->inp_end = 0; \ |
| 47 | } while (0) |
| 48 | |
| 49 | /* inp_start() - Should be called before each de-code operation. */ |
| 50 | #define inp_start(u) u->inp_ctr = 0 |
| 51 | |
| 52 | /* inp_back() - Resets the current pointer to its position before the current |
| 53 | * instruction disassembly was started. |
| 54 | */ |
| 55 | #define inp_reset(u) \ |
| 56 | do { \ |
| 57 | u->inp_curr -= u->inp_ctr; \ |
| 58 | u->inp_ctr = 0; \ |
| 59 | } while (0) |
| 60 | |
| 61 | /* inp_sess() - Returns the pointer to current session. */ |
| 62 | #define inp_sess(u) (u->inp_sess) |
| 63 | |
| 64 | /* inp_cur() - Returns the current input byte. */ |
| 65 | #define inp_curr(u) ((u)->inp_cache[(u)->inp_curr]) |
| 66 | |
| 67 | #endif |
andersk / udis86.git / blame