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// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project & 2025 citron Homebrew Project
// SPDX-License-Identifier: GPL-2.0-or-later
#pragma once
#ifdef _MSC_VER
#include <intrin.h>
#endif
#include "common/common_types.h"
namespace Common::X64 {
#ifdef _MSC_VER
__forceinline static u64 FencedRDTSC() {
_mm_lfence();
_ReadWriteBarrier();
const u64 result = __rdtsc();
_mm_lfence();
_ReadWriteBarrier();
return result;
}
#else
static inline u64 FencedRDTSC() {
u64 eax;
u64 edx;
asm volatile("lfence\n\t"
"rdtsc\n\t"
"lfence\n\t"
: "=a"(eax), "=d"(edx));
return (edx << 32) | eax;
}
#endif
u64 EstimateRDTSCFrequency();
} // namespace Common::X64
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