diff options
Diffstat (limited to '')
-rw-r--r-- | src/core/arm/dynarmic/arm_dynarmic.cpp | 2 | ||||
-rw-r--r-- | src/core/core_timing_util.cpp | 8 | ||||
-rw-r--r-- | src/core/core_timing_util.h | 2 |
3 files changed, 6 insertions, 6 deletions
diff --git a/src/core/arm/dynarmic/arm_dynarmic.cpp b/src/core/arm/dynarmic/arm_dynarmic.cpp index d36538257..25f76259b 100644 --- a/src/core/arm/dynarmic/arm_dynarmic.cpp +++ b/src/core/arm/dynarmic/arm_dynarmic.cpp @@ -120,7 +120,7 @@ public: return std::max(parent.core_timing.GetDowncount(), 0); } u64 GetCNTPCT() override { - return CpuCyclesToClockCycles(parent.core_timing.GetTicks()); + return Timing::CpuCyclesToClockCycles(parent.core_timing.GetTicks()); } ARM_Dynarmic& parent; diff --git a/src/core/core_timing_util.cpp b/src/core/core_timing_util.cpp index 8fc92560a..aab4aa697 100644 --- a/src/core/core_timing_util.cpp +++ b/src/core/core_timing_util.cpp @@ -7,6 +7,7 @@ #include <cinttypes> #include <limits> #include "common/logging/log.h" +#include "common/uint128.h" namespace Core::Timing { @@ -61,10 +62,9 @@ s64 nsToCycles(u64 ns) { } u64 CpuCyclesToClockCycles(u64 ticks) { - u64 result = ticks; - result *= CNTFREQ; - result /= BASE_CLOCK_RATE; - return static_cast<u64>(result); + u128 temporal = Common::Multiply64Into128(ticks, CNTFREQ); + std::pair<u64, u64> result = Common::Divide128On64(temporal, BASE_CLOCK_RATE); + return result.first; } } // namespace Core::Timing diff --git a/src/core/core_timing_util.h b/src/core/core_timing_util.h index 545d3a260..679aa3123 100644 --- a/src/core/core_timing_util.h +++ b/src/core/core_timing_util.h @@ -11,7 +11,7 @@ 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. +constexpr u64 CNTFREQ = 19200000; // Value from fusee. inline s64 msToCycles(int ms) { // since ms is int there is no way to overflow |