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SingleCore: Use Cycle Timing instead of Host Timing.

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This commit is contained in:
Fernando Sahmkow 2020-03-28 15:23:28 -04:00
parent 21235cdab1
commit f0f2fc4243
15 changed files with 152 additions and 80 deletions
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29
src/core/core_timing_util.cpp
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@ -38,15 +38,8 @@ s64 usToCycles(std::chrono::microseconds us) {
}
s64 nsToCycles(std::chrono::nanoseconds ns) {
if (static_cast<u64>(ns.count() / 1000000000) > MAX_VALUE_TO_MULTIPLY) {
LOG_ERROR(Core_Timing, "Integer overflow, use max value");
return std::numeric_limits<s64>::max();
}
if (static_cast<u64>(ns.count()) > MAX_VALUE_TO_MULTIPLY) {
LOG_DEBUG(Core_Timing, "Time very big, do rounding");
return Hardware::BASE_CLOCK_RATE * (ns.count() / 1000000000);
}
return (Hardware::BASE_CLOCK_RATE * ns.count()) / 1000000000;
const u128 temporal = Common::Multiply64Into128(ns.count(), Hardware::BASE_CLOCK_RATE);
return Common::Divide128On32(temporal, static_cast<u32>(1000000000)).first;
}
u64 msToClockCycles(std::chrono::milliseconds ns) {
@ -69,4 +62,22 @@ u64 CpuCyclesToClockCycles(u64 ticks) {
return Common::Divide128On32(temporal, static_cast<u32>(Hardware::BASE_CLOCK_RATE)).first;
}
std::chrono::milliseconds CyclesToMs(s64 cycles) {
const u128 temporal = Common::Multiply64Into128(cycles, 1000);
u64 ms = Common::Divide128On32(temporal, static_cast<u32>(Hardware::BASE_CLOCK_RATE)).first;
return std::chrono::milliseconds(ms);
}
std::chrono::nanoseconds CyclesToNs(s64 cycles) {
const u128 temporal = Common::Multiply64Into128(cycles, 1000000000);
u64 ns = Common::Divide128On32(temporal, static_cast<u32>(Hardware::BASE_CLOCK_RATE)).first;
return std::chrono::nanoseconds(ns);
}
std::chrono::microseconds CyclesToUs(s64 cycles) {
const u128 temporal = Common::Multiply64Into128(cycles, 1000000);
u64 us = Common::Divide128On32(temporal, static_cast<u32>(Hardware::BASE_CLOCK_RATE)).first;
return std::chrono::microseconds(us);
}
} // namespace Core::Timing