| /* |
| * Very simple but very effective user-space memory tester. |
| * Originally by Simon Kirby <sim@stormix.com> <sim@neato.org> |
| * Version 2 by Charles Cazabon <charlesc-memtester@pyropus.ca> |
| * Version 3 not publicly released. |
| * Version 4 rewrite: |
| * Copyright (C) 2004-2010 Charles Cazabon <charlesc-memtester@pyropus.ca> |
| * Licensed under the terms of the GNU General Public License version 2 (only). |
| * See the file COPYING for details. |
| * |
| * This file contains some macro definitions for handling 32/64 bit platforms. |
| * |
| */ |
| |
| #include <limits.h> |
| |
| #define rand32() ((unsigned int) rand() | ( (unsigned int) rand() << 16)) |
| |
| #if (ULONG_MAX == 4294967295UL) |
| #define rand_ul() rand32() |
| #define UL_ONEBITS 0xffffffff |
| #define UL_LEN 32 |
| #define CHECKERBOARD1 0x55555555 |
| #define CHECKERBOARD2 0xaaaaaaaa |
| #define UL_BYTE(x) ((x | x << 8 | x << 16 | x << 24)) |
| #elif (ULONG_MAX == 18446744073709551615ULL) |
| #define rand64() (((ul) rand32()) << 32 | ((ul) rand32())) |
| #define rand_ul() rand64() |
| #define UL_ONEBITS 0xffffffffffffffffUL |
| #define UL_LEN 64 |
| #define CHECKERBOARD1 0x5555555555555555 |
| #define CHECKERBOARD2 0xaaaaaaaaaaaaaaaa |
| #define UL_BYTE(x) (((ul)x | (ul)x<<8 | (ul)x<<16 | (ul)x<<24 | (ul)x<<32 | (ul)x<<40 | (ul)x<<48 | (ul)x<<56)) |
| #else |
| #error long on this platform is not 32 or 64 bits |
| #endif |
| |
| |
