projects / mirror_edk2.git / blame
| Commit | Line | Data |
|---|---|---|
| 1bbb83b5 HL |
1 | /*-\r |
| 2 | * Copyright (c) 1997, 1999, 2002 The NetBSD Foundation, Inc.\r | |
| 3 | * All rights reserved.\r | |
| 4 | *\r | |
| 5 | * This code is derived from software contributed to The NetBSD Foundation\r | |
| 6 | * by Charles M. Hannum, Neil A. Carson, and Jason R. Thorpe.\r | |
| 7 | *\r | |
| 8 | * Redistribution and use in source and binary forms, with or without\r | |
| 9 | * modification, are permitted provided that the following conditions\r | |
| 10 | * are met:\r | |
| 11 | * 1. Redistributions of source code must retain the above copyright\r | |
| 12 | * notice, this list of conditions and the following disclaimer.\r | |
| 13 | * 2. Redistributions in binary form must reproduce the above copyright\r | |
| 14 | * notice, this list of conditions and the following disclaimer in the\r | |
| 15 | * documentation and/or other materials provided with the distribution.\r | |
| 16 | *\r | |
| 17 | * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS\r | |
| 18 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED\r | |
| 19 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR\r | |
| 20 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS\r | |
| 21 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR\r | |
| 22 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF\r | |
| 23 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS\r | |
| 24 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN\r | |
| 25 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\r | |
| 26 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\r | |
| 27 | * POSSIBILITY OF SUCH DAMAGE.\r | |
| 28 | */\r | |
| 29 | \r | |
| 30 | #ifndef _AARCH64_BYTE_SWAP_H_\r | |
| 31 | #define _AARCH64_BYTE_SWAP_H_\r | |
| 32 | \r | |
| 33 | #ifdef __GNUC__\r | |
| 34 | #include <sys/types.h>\r | |
| 35 | __BEGIN_DECLS\r | |
| 36 | \r | |
| 37 | #define __BYTE_SWAP_U32_VARIABLE __byte_swap_u32_variable\r | |
| 38 | static __inline uint32_t\r | |
| 39 | __byte_swap_u32_variable(uint32_t v)\r | |
| 40 | {\r | |
| 41 | uint32_t t1;\r | |
| 42 | \r | |
| 43 | t1 = v ^ ((v << 16) | (v >> 16));\r | |
| 44 | t1 &= 0xff00ffffU;\r | |
| 45 | v = (v >> 8) | (v << 24);\r | |
| 46 | v ^= (t1 >> 8);\r | |
| 47 | return (v);\r | |
| 48 | }\r | |
| 49 | \r | |
| 50 | #define __BYTE_SWAP_U16_VARIABLE __byte_swap_u16_variable\r | |
| 51 | static __inline uint16_t\r | |
| 52 | __byte_swap_u16_variable(uint16_t v)\r | |
| 53 | {\r | |
| 54 | \r | |
| 55 | v &= 0xffff;\r | |
| 56 | v = (v >> 8) | (v << 8);\r | |
| 57 | return (v);\r | |
| 58 | }\r | |
| 59 | \r | |
| 60 | __END_DECLS\r | |
| 61 | #endif\r | |
| 62 | \r | |
| 63 | #endif /* _AARCH64_BYTE_SWAP_H_ */\r |