diff options
Diffstat (limited to 'src/core/core_timing_util.h')
-rw-r--r-- | src/core/core_timing_util.h | 53 |
1 files changed, 12 insertions, 41 deletions
diff --git a/src/core/core_timing_util.h b/src/core/core_timing_util.h index 513cfac1b..cdd84d70f 100644 --- a/src/core/core_timing_util.h +++ b/src/core/core_timing_util.h @@ -4,6 +4,7 @@ #pragma once +#include <chrono> #include "common/common_types.h" namespace Core::Timing { @@ -11,54 +12,24 @@ namespace Core::Timing { // The below clock rate is based on Switch's clockspeed being widely known as 1.020GHz // The exact value used is of course unverified. constexpr u64 BASE_CLOCK_RATE = 1019215872; // Switch clock speed is 1020MHz un/docked +constexpr u64 CNTFREQ = 19200000; // Value from fusee. -inline s64 msToCycles(int ms) { - // since ms is int there is no way to overflow - return BASE_CLOCK_RATE * static_cast<s64>(ms) / 1000; -} - -inline s64 msToCycles(float ms) { - return static_cast<s64>(BASE_CLOCK_RATE * (0.001f) * ms); -} - -inline s64 msToCycles(double ms) { - return static_cast<s64>(BASE_CLOCK_RATE * (0.001) * ms); -} - -inline s64 usToCycles(float us) { - return static_cast<s64>(BASE_CLOCK_RATE * (0.000001f) * us); -} - -inline s64 usToCycles(int us) { - return (BASE_CLOCK_RATE * static_cast<s64>(us) / 1000000); -} - -s64 usToCycles(s64 us); - -s64 usToCycles(u64 us); - -inline s64 nsToCycles(float ns) { - return static_cast<s64>(BASE_CLOCK_RATE * (0.000000001f) * ns); -} +s64 msToCycles(std::chrono::milliseconds ms); +s64 usToCycles(std::chrono::microseconds us); +s64 nsToCycles(std::chrono::nanoseconds ns); -inline s64 nsToCycles(int ns) { - return BASE_CLOCK_RATE * static_cast<s64>(ns) / 1000000000; +inline std::chrono::milliseconds CyclesToMs(s64 cycles) { + return std::chrono::milliseconds(cycles * 1000 / BASE_CLOCK_RATE); } -s64 nsToCycles(s64 ns); - -s64 nsToCycles(u64 ns); - -inline u64 cyclesToNs(s64 cycles) { - return cycles * 1000000000 / BASE_CLOCK_RATE; +inline std::chrono::nanoseconds CyclesToNs(s64 cycles) { + return std::chrono::nanoseconds(cycles * 1000000000 / BASE_CLOCK_RATE); } -inline s64 cyclesToUs(s64 cycles) { - return cycles * 1000000 / BASE_CLOCK_RATE; +inline std::chrono::microseconds CyclesToUs(s64 cycles) { + return std::chrono::microseconds(cycles * 1000000 / BASE_CLOCK_RATE); } -inline u64 cyclesToMs(s64 cycles) { - return cycles * 1000 / BASE_CLOCK_RATE; -} +u64 CpuCyclesToClockCycles(u64 ticks); } // namespace Core::Timing |