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Use u128 on Clock Cycles calculation.

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This commit is contained in:
Fernando Sahmkow
2019-02-15 20:04:11 -04:00
committed by FernandoS27
parent 3ea48e8ebe
commit ecccfe0337
5 changed files with 32 additions and 27 deletions
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8
src/core/core_timing_util.cpp
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@ -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