mirror of
https://gitea.wildfiregames.com/0ad/0ad
synced 2026-06-17 05:44:08 -07:00
43137fef3f
Differential Revision: https://code.wildfiregames.com/D716
Refs 09e974e1cb
Reviewed By: bb
Change in agreement with leper.
This was SVN commit r19899.
103 lines
3.1 KiB
C++
103 lines
3.1 KiB
C++
/* Copyright (C) 2010 Wildfire Games.
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining
|
|
* a copy of this software and associated documentation files (the
|
|
* "Software"), to deal in the Software without restriction, including
|
|
* without limitation the rights to use, copy, modify, merge, publish,
|
|
* distribute, sublicense, and/or sell copies of the Software, and to
|
|
* permit persons to whom the Software is furnished to do so, subject to
|
|
* the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included
|
|
* in all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
|
|
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
|
|
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
|
|
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
|
|
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
|
*/
|
|
|
|
#include "precompiled.h"
|
|
|
|
#if ARCH_AMD64
|
|
|
|
#include "lib/sysdep/cpu.h"
|
|
#include "lib/sysdep/arch/amd64/amd64.h"
|
|
|
|
|
|
void cpu_ConfigureFloatingPoint()
|
|
{
|
|
// 64-bit CPUs use SSE2 for all floating-point operations, so we
|
|
// don't need to change the FPU control word.
|
|
}
|
|
|
|
#if MSC_VERSION
|
|
|
|
// VC 2008 and ICC 12 differ in their declaration of _Interlocked*
|
|
#if ICC_VERSION
|
|
typedef __int64* P64;
|
|
#else
|
|
typedef volatile __int64* P64;
|
|
#endif
|
|
|
|
bool cpu_CAS(volatile intptr_t* location, intptr_t expected, intptr_t newValue)
|
|
{
|
|
const intptr_t initial = _InterlockedCompareExchange64((P64)location, newValue, expected);
|
|
return initial == expected;
|
|
}
|
|
|
|
bool cpu_CAS64(volatile i64* location, i64 expected, i64 newValue)
|
|
{
|
|
const i64 initial = _InterlockedCompareExchange64((P64)location, newValue, expected);
|
|
return initial == expected;
|
|
}
|
|
|
|
intptr_t cpu_AtomicAdd(volatile intptr_t* location, intptr_t increment)
|
|
{
|
|
return _InterlockedExchangeAdd64((P64)location, increment);
|
|
}
|
|
|
|
#elif OS_MACOSX
|
|
|
|
#include <libkern/OSAtomic.h>
|
|
|
|
intptr_t cpu_AtomicAdd(volatile intptr_t* location, intptr_t increment)
|
|
{
|
|
cassert(sizeof(intptr_t) == sizeof(int64_t));
|
|
return OSAtomicAdd64Barrier(increment, (volatile int64_t*)location);
|
|
}
|
|
|
|
bool cpu_CAS(volatile intptr_t* location, intptr_t expected, intptr_t newValue)
|
|
{
|
|
cassert(sizeof(intptr_t) == sizeof(void*));
|
|
return OSAtomicCompareAndSwapPtrBarrier((void*)expected, (void*)newValue, (void* volatile*)location);
|
|
}
|
|
|
|
bool cpu_CAS64(volatile i64* location, i64 expected, i64 newValue)
|
|
{
|
|
return OSAtomicCompareAndSwap64Barrier(expected, newValue, location);
|
|
}
|
|
|
|
#elif GCC_VERSION
|
|
|
|
intptr_t cpu_AtomicAdd(volatile intptr_t* location, intptr_t increment)
|
|
{
|
|
return __sync_fetch_and_add(location, increment);
|
|
}
|
|
|
|
bool cpu_CAS(volatile intptr_t* location, intptr_t expected, intptr_t newValue)
|
|
{
|
|
return __sync_bool_compare_and_swap(location, expected, newValue);
|
|
}
|
|
|
|
bool cpu_CAS64(volatile i64* location, i64 expected, i64 newValue)
|
|
{
|
|
return __sync_bool_compare_and_swap(location, expected, newValue);
|
|
}
|
|
|
|
#endif
|
|
|
|
#endif // ARCH_AMD64
|