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Remove <sortix/kernel/endian.h>.

This commit is contained in:
Jonas 'Sortie' Termansen 2013-10-19 23:52:09 +02:00
parent d0c7ca3c02
commit 9d48de4035
1 changed files with 0 additions and 120 deletions
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120
sortix/include/sortix/kernel/endian.h
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@ -1,120 +0,0 @@
/*******************************************************************************
Copyright(C) Jonas 'Sortie' Termansen 2012.
This file is part of Sortix.
Sortix is free software: you can redistribute it and/or modify it under the
terms of the GNU General Public License as published by the Free Software
Foundation, either version 3 of the License, or (at your option) any later
version.
Sortix is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
details.
You should have received a copy of the GNU General Public License along with
Sortix. If not, see <http://www.gnu.org/licenses/>.
sortix/kernel/endian.h
Converting values to and from various endians.
*******************************************************************************/
#ifndef SORTIX_ENDIAN_H
#define SORTIX_ENDIAN_H
// Work around older GCC versions that do not define this.
#if !defined(__BYTE_ORDER__) && (defined(__i386__) || defined(__x86_64__))
#if !defined(__ORDER_LITTLE_ENDIAN__)
#define __ORDER_LITTLE_ENDIAN__ 1234
#endif
#if !defined(__ORDER_BIG_ENDIAN__)
#define __ORDER_BIG_ENDIAN__ 4321
#endif
#if !defined(__BYTE_ORDER__)
#define __BYTE_ORDER__ __ORDER_LITTLE_ENDIAN__
#endif
#endif
#ifndef __BYTE_ORDER__
#error Your compiler needs to define the __BYTE_ORDER__ macro family.
#endif
#if __BYTE_ORDER__ != __ORDER_LITTLE_ENDIAN__ && \
__BYTE_ORDER__ != __ORDER_BIG_ENDIAN__
#error Exotic endian detected, you need to port this header.
#endif
namespace Sortix {
static inline uint16_t SwapBytes(uint16_t val)
{
uint16_t a = val >> 0 & 0xFF;
uint16_t b = val >> 8 & 0xFF;
return a << 8U | b << 0U;
}
static inline uint32_t SwapBytes(uint32_t val)
{
uint32_t a = val >> 0 & 0xFF;
uint32_t b = val >> 8 & 0xFF;
uint32_t c = val >> 16 & 0xFF;
uint32_t d = val >> 24 & 0xFF;
return a << 24U | b << 16U | c << 8U | d << 0U;
}
static inline uint64_t SwapBytes(uint64_t val)
{
uint64_t a = val >> 0 & 0xFF;
uint64_t b = val >> 8 & 0xFF;
uint64_t c = val >> 16 & 0xFF;
uint64_t d = val >> 24 & 0xFF;
uint64_t e = val >> 32 & 0xFF;
uint64_t f = val >> 40 & 0xFF;
uint64_t g = val >> 48 & 0xFF;
uint64_t h = val >> 56 & 0xFF;
return a << 56U | b << 48U | c << 40U | d << 32U |
e << 24U | f << 16U | g << 8U | h << 0U;
}
template <class T> T HostToLittle(T val)
{
#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
return val;
#else
return SwapBytes(val);
#endif
}
template <class T> T LittleToHost(T val)
{
#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
return val;
#else
return SwapBytes(val);
#endif
}
template <class T> T HostToBig(T val)
{
#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
return SwapBytes(val);
#else
return val;
#endif
}
template <class T> T BigToHost(T val)
{
#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
return SwapBytes(val);
#else
return val;
#endif
}
} // namespace Sortix
#endif