mirror of https://github.com/yasm/yasm.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
110 lines
3.1 KiB
110 lines
3.1 KiB
/* $IdPath$ |
|
* Little-endian file functions header file. |
|
* |
|
* Copyright (C) 2001 Peter Johnson |
|
* |
|
* This file is part of YASM. |
|
* |
|
* YASM is free software; you can redistribute it and/or modify |
|
* it under the terms of the GNU General Public License as published by |
|
* the Free Software Foundation; either version 2 of the License, or |
|
* (at your option) any later version. |
|
* |
|
* YASM is distributed in the hope that it will be useful, |
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
|
* GNU General Public License for more details. |
|
* |
|
* You should have received a copy of the GNU General Public License |
|
* along with this program; if not, write to the Free Software |
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
|
*/ |
|
#ifndef YASM_FILE_H |
|
#define YASM_FILE_H |
|
|
|
/* These functions only work properly if p is an (unsigned char *) */ |
|
|
|
#define WRITE_BYTE(ptr, val) \ |
|
*((ptr)++) = (val) & 0xFF |
|
|
|
#define WRITE_SHORT(ptr, val) \ |
|
do { \ |
|
*((ptr)++) = (val) & 0xFF; \ |
|
*((ptr)++) = ((val) >> 8) & 0xFF; \ |
|
} while (0) |
|
|
|
#define WRITE_LONG(ptr, val) \ |
|
do { \ |
|
*((ptr)++) = (val) & 0xFF; \ |
|
*((ptr)++) = ((val) >> 8) & 0xFF; \ |
|
*((ptr)++) = ((val) >> 16) & 0xFF; \ |
|
*((ptr)++) = ((val) >> 24) & 0xFF; \ |
|
} while (0) |
|
|
|
/* Non-incrementing versions of the above. */ |
|
|
|
#define SAVE_BYTE(ptr, val) \ |
|
*(ptr) = (val) & 0xFF |
|
|
|
#define SAVE_SHORT(ptr, val) \ |
|
do { \ |
|
*(ptr) = (val) & 0xFF; \ |
|
*((ptr)+1) = ((val) >> 8) & 0xFF; \ |
|
} while (0) |
|
|
|
#define SAVE_LONG(ptr, val) \ |
|
do { \ |
|
*(ptr) = (val) & 0xFF; \ |
|
*((ptr)+1) = ((val) >> 8) & 0xFF; \ |
|
*((ptr)+2) = ((val) >> 16) & 0xFF; \ |
|
*((ptr)+3) = ((val) >> 24) & 0xFF; \ |
|
} while (0) |
|
|
|
/* Direct-to-file versions of the above. Using the above macros and a single |
|
* fwrite() will probably be faster than calling these functions many times. |
|
* These functions return 1 if the write was successful, 0 if not (so their |
|
* return values can be used like the return value from fwrite()). |
|
*/ |
|
|
|
size_t fwrite_short(unsigned short val, FILE *f); |
|
size_t fwrite_long(unsigned long val, FILE *f); |
|
|
|
/* Read/Load versions. val is the variable to receive the data. */ |
|
|
|
#define READ_BYTE(val, ptr) \ |
|
(val) = *((ptr)++) & 0xFF |
|
|
|
#define READ_SHORT(val, ptr) \ |
|
do { \ |
|
(val) = *((ptr)++) & 0xFF; \ |
|
(val) |= (*((ptr)++) & 0xFF) << 8; \ |
|
} while (0) |
|
|
|
#define READ_LONG(val, ptr) \ |
|
do { \ |
|
(val) = *((ptr)++) & 0xFF; \ |
|
(val) |= (*((ptr)++) & 0xFF) << 8; \ |
|
(val) |= (*((ptr)++) & 0xFF) << 16; \ |
|
(val) |= (*((ptr)++) & 0xFF) << 24; \ |
|
} while (0) |
|
|
|
/* Non-incrementing versions of the above. */ |
|
|
|
#define LOAD_BYTE(val, ptr) \ |
|
(val) = *(ptr) & 0xFF |
|
|
|
#define LOAD_SHORT(val, ptr) \ |
|
do { \ |
|
(val) = *(ptr) & 0xFF; \ |
|
(val) |= (*((ptr)+1) & 0xFF) << 8; \ |
|
} while (0) |
|
|
|
#define LOAD_LONG(val, ptr) \ |
|
do { \ |
|
(val) = *(ptr) & 0xFF; \ |
|
(val) |= (*((ptr)+1) & 0xFF) << 8; \ |
|
(val) |= (*((ptr)+2) & 0xFF) << 16; \ |
|
(val) |= (*((ptr)+3) & 0xFF) << 24; \ |
|
} while (0) |
|
|
|
#endif
|
|
|