mirror of
https://gitea.wildfiregames.com/0ad/0ad
synced 2026-06-16 21:34:08 -07:00
1861448e6c
also rename wchar -> utf8 to avoid conflict with <wchar.h> (requires rebuild of workspace) (unfortunately copying history fails to "502 bad gateway"; had to delete old + add new independently) This was SVN commit r7340.
73 lines
2.2 KiB
C++
73 lines
2.2 KiB
C++
/* Copyright (c) 2010 Wildfire Games
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include "precompiled.h"
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#if ARCH_AMD64
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#include "lib/sysdep/arch/amd64/amd64.h"
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#include "lib/sysdep/arch/amd64/amd64_asm.h"
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#include "lib/sysdep/cpu.h"
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#if MSC_VERSION
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#include <intrin.h>
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#endif
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void cpu_ConfigureFloatingPoint()
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{
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// 64-bit CPU:s apparently use SSE2 for all floating-point operations, so I
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// *guess* we don't need to do anything...
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}
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void* cpu_memcpy(void* RESTRICT dst, const void* RESTRICT src, size_t size)
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{
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return memcpy(dst, src, size);
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}
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#if MSC_VERSION
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bool cpu_CAS(volatile uintptr_t* location, uintptr_t expected, uintptr_t newValue)
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{
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const uintptr_t initial = _InterlockedCompareExchange64((volatile __int64*)location, newValue, expected);
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return initial == expected;
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}
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void cpu_AtomicAdd(volatile intptr_t* location, intptr_t increment)
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{
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(void)_InterlockedExchangeAdd64(location, increment);
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}
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#elif GCC_VERSION
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void cpu_AtomicAdd(volatile intptr_t* location, intptr_t increment)
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{
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amd64_AtomicAdd(location, increment);
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}
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bool cpu_CAS(volatile uintptr_t* location, uintptr_t expected, uintptr_t newValue)
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{
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return amd64_CAS(location, expected, newValue) ? true : false;
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}
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#endif
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#endif // ARCH_AMD64
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