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author | Fernando Sahmkow <fsahmkow27@gmail.com> | 2020-02-09 21:53:22 +0100 |
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committer | Fernando Sahmkow <fsahmkow27@gmail.com> | 2020-06-18 22:29:17 +0200 |
commit | 234b5ff6a999d7d69cdcdf214e0c3984cdab11cf (patch) | |
tree | 4f0ef41d7738b53d1b81ac2f7072bec1ba5fe8f1 /src/common/x64/native_clock.h | |
parent | Tests: Add base tests to host timing (diff) | |
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Diffstat (limited to '')
-rw-r--r-- | src/common/x64/native_clock.h | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/src/common/x64/native_clock.h b/src/common/x64/native_clock.h new file mode 100644 index 000000000..b58cf9f5a --- /dev/null +++ b/src/common/x64/native_clock.h @@ -0,0 +1,41 @@ +// Copyright 2020 yuzu Emulator Project +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +#pragma once + +#include <optional> + +#include "common/spin_lock.h" +#include "common/wall_clock.h" + +namespace Common { + +namespace X64 { +class NativeClock : public WallClock { +public: + NativeClock(u64 emulated_cpu_frequency, u64 emulated_clock_frequency, u64 rtsc_frequency); + + std::chrono::nanoseconds GetTimeNS() override; + + std::chrono::microseconds GetTimeUS() override; + + std::chrono::milliseconds GetTimeMS() override; + + u64 GetClockCycles() override; + + u64 GetCPUCycles() override; + +private: + u64 GetRTSC(); + + SpinLock rtsc_serialize{}; + u64 last_measure{}; + u64 accumulated_ticks{}; + u64 rtsc_frequency; +}; +} // namespace X64 + +u64 EstimateRDTSCFrequency(); + +} // namespace Common |