/* * Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved. * * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ * * This file contains Original Code and/or Modifications of Original Code * as defined in and that are subject to the Apple Public Source License * Version 2.0 (the 'License'). You may not use this file except in * compliance with the License. The rights granted to you under the License * may not be used to create, or enable the creation or redistribution of, * unlawful or unlicensed copies of an Apple operating system, or to * circumvent, violate, or enable the circumvention or violation of, any * terms of an Apple operating system software license agreement. * * Please obtain a copy of the License at * http://www.opensource.apple.com/apsl/ and read it before using this file. * * The Original Code and all software distributed under the License are * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. * Please see the License for the specific language governing rights and * limitations under the License. * * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ */ #ifndef _OS_OSBYTEORDERMACHINE_H #define _OS_OSBYTEORDERMACHINE_H #include #if !defined(OS_INLINE) # if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L # define OS_INLINE static inline # elif defined(__MWERKS__) || defined(__cplusplus) # define OS_INLINE static inline # else # define OS_INLINE static __inline__ # endif #endif /* Generic byte swapping functions. */ OS_INLINE uint16_t _OSSwapInt16( uint16_t data ) { return OSSwapConstInt16(data); } OS_INLINE uint32_t _OSSwapInt32( uint32_t data ) { return OSSwapConstInt32(data); } OS_INLINE uint64_t _OSSwapInt64( uint64_t data ) { return OSSwapConstInt64(data); } /* Functions for byte reversed loads. */ OS_INLINE uint16_t OSReadSwapInt16( const volatile void * base, uintptr_t byteOffset ) { uint16_t data = *(volatile uint16_t *)((uintptr_t)base + byteOffset); return _OSSwapInt16(data); } OS_INLINE uint32_t OSReadSwapInt32( const volatile void * base, uintptr_t byteOffset ) { uint32_t data = *(volatile uint32_t *)((uintptr_t)base + byteOffset); return _OSSwapInt32(data); } OS_INLINE uint64_t OSReadSwapInt64( const volatile void * base, uintptr_t byteOffset ) { uint64_t data = *(volatile uint64_t *)((uintptr_t)base + byteOffset); return _OSSwapInt64(data); } /* Functions for byte reversed stores. */ OS_INLINE void OSWriteSwapInt16( volatile void * base, uintptr_t byteOffset, uint16_t data ) { *(volatile uint16_t *)((uintptr_t)base + byteOffset) = _OSSwapInt16(data); } OS_INLINE void OSWriteSwapInt32( volatile void * base, uintptr_t byteOffset, uint32_t data ) { *(volatile uint32_t *)((uintptr_t)base + byteOffset) = _OSSwapInt32(data); } OS_INLINE void OSWriteSwapInt64( volatile void * base, uintptr_t byteOffset, uint64_t data ) { *(volatile uint64_t *)((uintptr_t)base + byteOffset) = _OSSwapInt64(data); } #endif /* ! _OS_OSBYTEORDERMACHINE_H */