| /* $OpenBSD: endian.h,v 1.5 2006/02/27 23:35:59 miod Exp $ */ |
| |
| /* |
| * Copyright (c) 2001-2002 Opsycon AB (www.opsycon.se / www.opsycon.com) |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS |
| * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
| * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY |
| * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| * |
| */ |
| |
| #ifndef _MIPS64_ENDIAN_H_ |
| #define _MIPS64_ENDIAN_H_ |
| |
| #ifdef __GNUC__ |
| |
| #if defined(__mips_isa_rev) && (__mips_isa_rev >= 2) |
| #define __swap16md(x) ({ \ |
| register uint16_t _x = (x); \ |
| register uint16_t _r; \ |
| __asm volatile ("wsbh %0, %1" : "=r" (_r) : "r" (_x)); \ |
| _r; \ |
| }) |
| |
| #define __swap32md(x) ({ \ |
| register uint32_t _x = (x); \ |
| register uint32_t _r; \ |
| __asm volatile ("wsbh %0, %1; rotr %0, %0, 16" : "=r" (_r) : "r" (_x)); \ |
| _r; \ |
| }) |
| |
| #define __swap64md(x) ({ \ |
| uint64_t _swap64md_x = (x); \ |
| (uint64_t) __swap32md(_swap64md_x >> 32) | \ |
| (uint64_t) __swap32md(_swap64md_x & 0xffffffff) << 32; \ |
| }) |
| |
| /* Tell sys/endian.h we have MD variants of the swap macros. */ |
| #define MD_SWAP |
| |
| #endif /* __mips32r2__ */ |
| #endif /* __GNUC__ */ |
| |
| #if defined(__MIPSEB__) |
| #define _BYTE_ORDER _BIG_ENDIAN |
| #else |
| #define _BYTE_ORDER _LITTLE_ENDIAN |
| #endif |
| #define __STRICT_ALIGNMENT |
| #include <sys/types.h> |
| #include <sys/endian.h> |
| |
| #endif /* _MIPS64_ENDIAN_H_ */ |
