usr/src/lib/libc/sparc/gen/endian.c

   1 /*
   2  * This file and its contents are supplied under the terms of the
   3  * Common Development and Distribution License ("CDDL"), version 1.0.
   4  * You may only use this file in accordance with the terms of version
   5  * 1.0 of the CDDL.
   6  *
   7  * A full copy of the text of the CDDL should have accompanied this
   8  * source.  A copy of the CDDL is also available via the Internet at
   9  * http://www.illumos.org/license/CDDL.
  10  */
  11
  12 /*
  13  * Copyright (c) 2015, Joyent, Inc.
  14  */
  15
  16 #include <endian.h>
  17
  18 /*
  19  * endian(3C) routines
  20  */
  21
  22 uint16_t
  23 htole16(uint16_t in)
  24 {
  25         return (((in & 0xff) << 8) | ((in & 0xff00) >> 8));
  26 }
  27
  28 uint32_t
  29 htole32(uint32_t in)
  30 {
  31         return (((in & 0xffUL) << 24) |
  32             (in & 0xff00UL) << 8 |
  33             (in & 0xff0000UL) >> 8 |
  34             ((in & 0xff000000UL) >> 24));
  35 }
  36
  37 uint64_t
  38 htole64(uint64_t in)
  39 {
  40         return (((in & 0xffULL) << 56) |
  41             ((in & 0xff00ULL) << 40) |
  42             ((in & 0xff0000ULL) << 24) |
  43             ((in & 0xff000000ULL) << 8) |
  44             ((in & 0xff00000000ULL) >> 8) |
  45             ((in & 0xff0000000000ULL) >> 24) |
  46             ((in & 0xff000000000000ULL) >> 40) |
  47             ((in & 0xff00000000000000ULL) >> 56));
  48 }
  49
  50 uint16_t
  51 letoh16(uint16_t in)
  52 {
  53         return (((in & 0xff) << 8) | ((in & 0xff00) >> 8));
  54 }
  55
  56 uint16_t
  57 le16toh(uint16_t in)
  58 {
  59         return (((in & 0xff) << 8) | ((in & 0xff00) >> 8));
  60 }
  61
  62 uint32_t
  63 letoh32(uint32_t in)
  64 {
  65         return (((in & 0xffUL) << 24) |
  66             (in & 0xff00UL) << 8 |
  67             (in & 0xff0000UL) >> 8 |
  68             ((in & 0xff000000UL) >> 24));
  69 }
  70
  71 uint32_t
  72 le32toh(uint32_t in)
  73 {
  74         return (((in & 0xffUL) << 24) |
  75             (in & 0xff00UL) << 8 |
  76             (in & 0xff0000UL) >> 8 |
  77             ((in & 0xff000000UL) >> 24));
  78 }
  79
  80 uint64_t
  81 letoh64(uint64_t in)
  82 {
  83         return (((in & 0xffULL) << 56) |
  84             ((in & 0xff00ULL) << 40) |
  85             ((in & 0xff0000ULL) << 24) |
  86             ((in & 0xff000000ULL) << 8) |
  87             ((in & 0xff00000000ULL) >> 8) |
  88             ((in & 0xff0000000000ULL) >> 24) |
  89             ((in & 0xff000000000000ULL) >> 40) |
  90             ((in & 0xff00000000000000ULL) >> 56));
  91 }
  92
  93 uint64_t
  94 le64toh(uint64_t in)
  95 {
  96         return (((in & 0xffULL) << 56) |
  97             ((in & 0xff00ULL) << 40) |
  98             ((in & 0xff0000ULL) << 24) |
  99             ((in & 0xff000000ULL) << 8) |
 100             ((in & 0xff00000000ULL) >> 8) |
 101             ((in & 0xff0000000000ULL) >> 24) |
 102             ((in & 0xff000000000000ULL) >> 40) |
 103             ((in & 0xff00000000000000ULL) >> 56));
 104 }
 105
 106 /* Anything to or from big-endian is a no-op */
 107
 108 uint16_t
 109 htobe16(uint16_t in)
 110 {
 111         return (in);
 112 }
 113
 114 uint32_t
 115 htobe32(uint32_t in)
 116 {
 117         return (in);
 118 }
 119
 120 uint64_t
 121 htobe64(uint64_t in)
 122 {
 123         return (in);
 124 }
 125
 126 uint16_t
 127 betoh16(uint16_t in)
 128 {
 129         return (in);
 130 }
 131
 132 uint16_t
 133 be16toh(uint16_t in)
 134 {
 135         return (in);
 136 }
 137
 138 uint32_t
 139 betoh32(uint32_t in)
 140 {
 141         return (in);
 142 }
 143
 144 uint32_t
 145 be32toh(uint32_t in)
 146 {
 147         return (in);
 148 }
 149
 150 uint64_t
 151 betoh64(uint64_t in)
 152 {
 153         return (in);
 154 }
 155
 156 uint64_t
 157 be64toh(uint64_t in)
 158 {
 159         return (in);
 160 }