diff options
| author | Morph <39850852+Morph1984@users.noreply.github.com> | 2023-04-23 00:01:08 -0400 |
|---|---|---|
| committer | Morph <39850852+Morph1984@users.noreply.github.com> | 2023-06-07 21:44:42 -0400 |
| commit | 8e56a84566036cfff0aa5c3d80ae1b051d2bd0bf (patch) | |
| tree | 2bb7be86aafe9986811758b508a7581d2efe8ac4 /src/core/core_timing_util.h | |
| parent | bbd502f67adb17b00b33f1b7158cfff2b2fa8a3e (diff) | |
core_timing: Use CNTPCT as the guest CPU tick
Previously, we were mixing the raw CPU frequency and CNTFRQ.
The raw CPU frequency (1020 MHz) should've never been used as CNTPCT (whose frequency is CNTFRQ) is the only counter available.
Diffstat (limited to 'src/core/core_timing_util.h')
| -rw-r--r-- | src/core/core_timing_util.h | 58 |
1 files changed, 0 insertions, 58 deletions
diff --git a/src/core/core_timing_util.h b/src/core/core_timing_util.h deleted file mode 100644 index fe5aaefc7..000000000 --- a/src/core/core_timing_util.h +++ /dev/null @@ -1,58 +0,0 @@ -// SPDX-FileCopyrightText: Copyright 2020 yuzu Emulator Project -// SPDX-License-Identifier: GPL-2.0-or-later - -#pragma once - -#include <chrono> - -#include "common/common_types.h" -#include "core/hardware_properties.h" - -namespace Core::Timing { - -namespace detail { -constexpr u64 CNTFREQ_ADJUSTED = Hardware::CNTFREQ / 1000; -constexpr u64 BASE_CLOCK_RATE_ADJUSTED = Hardware::BASE_CLOCK_RATE / 1000; -} // namespace detail - -[[nodiscard]] constexpr s64 msToCycles(std::chrono::milliseconds ms) { - return ms.count() * detail::BASE_CLOCK_RATE_ADJUSTED; -} - -[[nodiscard]] constexpr s64 usToCycles(std::chrono::microseconds us) { - return us.count() * detail::BASE_CLOCK_RATE_ADJUSTED / 1000; -} - -[[nodiscard]] constexpr s64 nsToCycles(std::chrono::nanoseconds ns) { - return ns.count() * detail::BASE_CLOCK_RATE_ADJUSTED / 1000000; -} - -[[nodiscard]] constexpr u64 msToClockCycles(std::chrono::milliseconds ms) { - return static_cast<u64>(ms.count()) * detail::CNTFREQ_ADJUSTED; -} - -[[nodiscard]] constexpr u64 usToClockCycles(std::chrono::microseconds us) { - return us.count() * detail::CNTFREQ_ADJUSTED / 1000; -} - -[[nodiscard]] constexpr u64 nsToClockCycles(std::chrono::nanoseconds ns) { - return ns.count() * detail::CNTFREQ_ADJUSTED / 1000000; -} - -[[nodiscard]] constexpr u64 CpuCyclesToClockCycles(u64 ticks) { - return ticks * detail::CNTFREQ_ADJUSTED / detail::BASE_CLOCK_RATE_ADJUSTED; -} - -[[nodiscard]] constexpr std::chrono::milliseconds CyclesToMs(s64 cycles) { - return std::chrono::milliseconds(cycles / detail::BASE_CLOCK_RATE_ADJUSTED); -} - -[[nodiscard]] constexpr std::chrono::nanoseconds CyclesToNs(s64 cycles) { - return std::chrono::nanoseconds(cycles * 1000000 / detail::BASE_CLOCK_RATE_ADJUSTED); -} - -[[nodiscard]] constexpr std::chrono::microseconds CyclesToUs(s64 cycles) { - return std::chrono::microseconds(cycles * 1000 / detail::BASE_CLOCK_RATE_ADJUSTED); -} - -} // namespace Core::Timing |
