projects / apple / bootx.git / blame
| Commit | Line | Data |
|---|---|---|
| 04fee52e A |
1 | /* |
| 2 | * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. | |
| 3 | * | |
| 4 | * @APPLE_LICENSE_HEADER_START@ | |
| 5 | * | |
| 8be739c0 A |
6 | * The contents of this file constitute Original Code as defined in and |
| 7 | * are subject to the Apple Public Source License Version 1.1 (the | |
| 8 | * "License"). You may not use this file except in compliance with the | |
| 9 | * License. Please obtain a copy of the License at | |
| 10 | * http://www.apple.com/publicsource and read it before using this file. | |
| 04fee52e | 11 | * |
| 8be739c0 A |
12 | * This Original Code and all software distributed under the License are |
| 13 | * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER | |
| 04fee52e A |
14 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, |
| 15 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, | |
| 8be739c0 A |
16 | * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the |
| 17 | * License for the specific language governing rights and limitations | |
| 18 | * under the License. | |
| 04fee52e A |
19 | * |
| 20 | * @APPLE_LICENSE_HEADER_END@ | |
| 21 | */ | |
| 22 | /* | |
| 23 | * bswap.c - Endian Swapping functions. | |
| 24 | * | |
| 25 | * Copyright (c) 2000 Apple Computer, Inc. | |
| 26 | * | |
| 27 | * DRI: Josh de Cesare | |
| 28 | */ | |
| 29 | ||
| 30 | #include <libclite.h> | |
| 31 | ||
| 32 | int16_t bswap16(int16_t data) | |
| 33 | { | |
| 34 | int16_t tmpData; | |
| 35 | ||
| 36 | __asm__ volatile("sthbrx %0, 0, %1" : : "r" (data), "r" (&tmpData)); | |
| 37 | ||
| 38 | return tmpData; | |
| 39 | } | |
| 40 | ||
| 41 | int32_t bswap32(int32_t data) | |
| 42 | { | |
| 43 | int32_t tmpData; | |
| 44 | ||
| 45 | __asm__ volatile("stwbrx %0, 0, %1" : : "r" (data), "r" (&tmpData)); | |
| 46 | ||
| 47 | return tmpData; | |
| 48 | } |