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https://github.com/yuzu-emu/yuzu-android
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36 lines
1.1 KiB
C++
36 lines
1.1 KiB
C++
// Copyright 2008 Dolphin Emulator Project / 2017 Citra Emulator Project
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// Licensed under GPLv2+
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// Refer to the license.txt file included.
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#pragma once
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#include <chrono>
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#include "common/common_types.h"
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namespace Core::Timing {
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// The below clock rate is based on Switch's clockspeed being widely known as 1.020GHz
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// The exact value used is of course unverified.
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constexpr u64 BASE_CLOCK_RATE = 1019215872; // Switch clock speed is 1020MHz un/docked
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constexpr u64 CNTFREQ = 19200000; // Value from fusee.
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s64 msToCycles(std::chrono::milliseconds ms);
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s64 usToCycles(std::chrono::microseconds us);
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s64 nsToCycles(std::chrono::nanoseconds ns);
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inline std::chrono::milliseconds CyclesToMs(s64 cycles) {
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return std::chrono::milliseconds(cycles * 1000 / BASE_CLOCK_RATE);
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}
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inline std::chrono::nanoseconds CyclesToNs(s64 cycles) {
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return std::chrono::nanoseconds(cycles * 1000000000 / BASE_CLOCK_RATE);
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}
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inline std::chrono::microseconds CyclesToUs(s64 cycles) {
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return std::chrono::microseconds(cycles * 1000000 / BASE_CLOCK_RATE);
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}
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u64 CpuCyclesToClockCycles(u64 ticks);
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} // namespace Core::Timing
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