| 1 | /*␊ |
| 2 | * Copyright (c) 1999-2006 Apple Computer, Inc. All rights reserved.␊ |
| 3 | *␊ |
| 4 | * @APPLE_OSREFERENCE_LICENSE_HEADER_START@␊ |
| 5 | * ␊ |
| 6 | * This file contains Original Code and/or Modifications of Original Code␊ |
| 7 | * as defined in and that are subject to the Apple Public Source License␊ |
| 8 | * Version 2.0 (the 'License'). You may not use this file except in␊ |
| 9 | * compliance with the License. The rights granted to you under the License␊ |
| 10 | * may not be used to create, or enable the creation or redistribution of,␊ |
| 11 | * unlawful or unlicensed copies of an Apple operating system, or to␊ |
| 12 | * circumvent, violate, or enable the circumvention or violation of, any␊ |
| 13 | * terms of an Apple operating system software license agreement.␊ |
| 14 | * ␊ |
| 15 | * Please obtain a copy of the License at␊ |
| 16 | * http://www.opensource.apple.com/apsl/ and read it before using this file.␊ |
| 17 | * ␊ |
| 18 | * The Original Code and all software distributed under the License are␊ |
| 19 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER␊ |
| 20 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,␊ |
| 21 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,␊ |
| 22 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.␊ |
| 23 | * Please see the License for the specific language governing rights and␊ |
| 24 | * limitations under the License.␊ |
| 25 | * ␊ |
| 26 | * @APPLE_OSREFERENCE_LICENSE_HEADER_END@␊ |
| 27 | */␊ |
| 28 | ␊ |
| 29 | #ifndef _OS_OSBYTEORDERI386_H␊ |
| 30 | #define _OS_OSBYTEORDERI386_H␊ |
| 31 | ␊ |
| 32 | #include <stdint.h>␊ |
| 33 | #include <libkern/i386/_OSByteOrder.h>␊ |
| 34 | ␊ |
| 35 | #if !defined(OS_INLINE)␊ |
| 36 | #define OS_INLINE␉__DARWIN_OS_INLINE␊ |
| 37 | #endif␊ |
| 38 | ␊ |
| 39 | /* Functions for byte reversed loads. */␊ |
| 40 | ␊ |
| 41 | OS_INLINE␊ |
| 42 | uint16_t␊ |
| 43 | OSReadSwapInt16(␊ |
| 44 | const volatile void * base,␊ |
| 45 | uintptr_t byteOffset␊ |
| 46 | )␊ |
| 47 | {␊ |
| 48 | uint16_t result;␊ |
| 49 | ␊ |
| 50 | result = *(volatile uint16_t *)((uintptr_t)base + byteOffset);␊ |
| 51 | return _OSSwapInt16(result);␊ |
| 52 | }␊ |
| 53 | ␊ |
| 54 | OS_INLINE␊ |
| 55 | uint32_t␊ |
| 56 | OSReadSwapInt32(␊ |
| 57 | const volatile void * base,␊ |
| 58 | uintptr_t byteOffset␊ |
| 59 | )␊ |
| 60 | {␊ |
| 61 | uint32_t result;␊ |
| 62 | ␊ |
| 63 | result = *(volatile uint32_t *)((uintptr_t)base + byteOffset);␊ |
| 64 | return _OSSwapInt32(result);␊ |
| 65 | }␊ |
| 66 | ␊ |
| 67 | OS_INLINE␊ |
| 68 | uint64_t␊ |
| 69 | OSReadSwapInt64(␊ |
| 70 | const volatile void * base,␊ |
| 71 | uintptr_t byteOffset␊ |
| 72 | )␊ |
| 73 | {␊ |
| 74 | uint64_t result;␊ |
| 75 | ␊ |
| 76 | result = *(volatile uint64_t *)((uintptr_t)base + byteOffset);␊ |
| 77 | return _OSSwapInt64(result);␊ |
| 78 | }␊ |
| 79 | ␊ |
| 80 | /* Functions for byte reversed stores. */␊ |
| 81 | ␊ |
| 82 | OS_INLINE␊ |
| 83 | void␊ |
| 84 | OSWriteSwapInt16(␊ |
| 85 | volatile void * base,␊ |
| 86 | uintptr_t byteOffset,␊ |
| 87 | uint16_t data␊ |
| 88 | )␊ |
| 89 | {␊ |
| 90 | *(volatile uint16_t *)((uintptr_t)base + byteOffset) = _OSSwapInt16(data);␊ |
| 91 | }␊ |
| 92 | ␊ |
| 93 | OS_INLINE␊ |
| 94 | void␊ |
| 95 | OSWriteSwapInt32(␊ |
| 96 | volatile void * base,␊ |
| 97 | uintptr_t byteOffset,␊ |
| 98 | uint32_t data␊ |
| 99 | )␊ |
| 100 | {␊ |
| 101 | *(volatile uint32_t *)((uintptr_t)base + byteOffset) = _OSSwapInt32(data);␊ |
| 102 | }␊ |
| 103 | ␊ |
| 104 | OS_INLINE␊ |
| 105 | void␊ |
| 106 | OSWriteSwapInt64(␊ |
| 107 | volatile void * base,␊ |
| 108 | uintptr_t byteOffset,␊ |
| 109 | uint64_t data␊ |
| 110 | )␊ |
| 111 | {␊ |
| 112 | *(volatile uint64_t *)((uintptr_t)base + byteOffset) = _OSSwapInt64(data);␊ |
| 113 | }␊ |
| 114 | ␊ |
| 115 | #endif /* ! _OS_OSBYTEORDERI386_H */␊ |
| 116 | |
