From 62e35ffc0effddfacb73ebc766735148436d7331 Mon Sep 17 00:00:00 2001 From: Fernando Sahmkow Date: Wed, 5 Feb 2020 19:12:27 -0400 Subject: Core: Implement a Host Timer. --- src/core/core_timing_util.cpp | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'src/core/core_timing_util.cpp') diff --git a/src/core/core_timing_util.cpp b/src/core/core_timing_util.cpp index de50d3b14..f42666b4d 100644 --- a/src/core/core_timing_util.cpp +++ b/src/core/core_timing_util.cpp @@ -49,6 +49,11 @@ s64 nsToCycles(std::chrono::nanoseconds ns) { return (Hardware::BASE_CLOCK_RATE * ns.count()) / 1000000000; } +u64 nsToClockCycles(std::chrono::nanoseconds ns) { + const u128 temporal = Common::Multiply64Into128(ns.count(), CNTFREQ); + return Common::Divide128On32(temporal, 1000000000).first; +} + u64 CpuCyclesToClockCycles(u64 ticks) { const u128 temporal = Common::Multiply64Into128(ticks, Hardware::CNTFREQ); return Common::Divide128On32(temporal, static_cast(Hardware::BASE_CLOCK_RATE)).first; -- cgit v1.2.3 From 1f7dd36499786d373b143a4437d4c32e077a32aa Mon Sep 17 00:00:00 2001 From: Fernando Sahmkow Date: Mon, 10 Feb 2020 14:45:08 -0400 Subject: Common/Tests: Address Feedback --- src/core/core_timing_util.cpp | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-) (limited to 'src/core/core_timing_util.cpp') diff --git a/src/core/core_timing_util.cpp b/src/core/core_timing_util.cpp index f42666b4d..be34b26fe 100644 --- a/src/core/core_timing_util.cpp +++ b/src/core/core_timing_util.cpp @@ -49,9 +49,19 @@ s64 nsToCycles(std::chrono::nanoseconds ns) { return (Hardware::BASE_CLOCK_RATE * ns.count()) / 1000000000; } +u64 msToClockCycles(std::chrono::milliseconds ns) { + const u128 temp = Common::Multiply64Into128(ns.count(), Hardware::CNTFREQ); + return Common::Divide128On32(temp, 1000).first; +} + +u64 usToClockCycles(std::chrono::microseconds ns) { + const u128 temp = Common::Multiply64Into128(ns.count(), Hardware::CNTFREQ); + return Common::Divide128On32(temp, 1000000).first; +} + u64 nsToClockCycles(std::chrono::nanoseconds ns) { - const u128 temporal = Common::Multiply64Into128(ns.count(), CNTFREQ); - return Common::Divide128On32(temporal, 1000000000).first; + const u128 temp = Common::Multiply64Into128(ns.count(), Hardware::CNTFREQ); + return Common::Divide128On32(temp, 1000000000).first; } u64 CpuCyclesToClockCycles(u64 ticks) { -- cgit v1.2.3 From f5e32935ca9d1727624c86ca78aff91027caf819 Mon Sep 17 00:00:00 2001 From: Fernando Sahmkow Date: Sat, 28 Mar 2020 15:23:28 -0400 Subject: SingleCore: Use Cycle Timing instead of Host Timing. --- src/core/core_timing_util.cpp | 29 ++++++++++++++++++++--------- 1 file changed, 20 insertions(+), 9 deletions(-) (limited to 'src/core/core_timing_util.cpp') diff --git a/src/core/core_timing_util.cpp b/src/core/core_timing_util.cpp index be34b26fe..aefc63663 100644 --- a/src/core/core_timing_util.cpp +++ b/src/core/core_timing_util.cpp @@ -38,15 +38,8 @@ s64 usToCycles(std::chrono::microseconds us) { } s64 nsToCycles(std::chrono::nanoseconds ns) { - if (static_cast(ns.count() / 1000000000) > MAX_VALUE_TO_MULTIPLY) { - LOG_ERROR(Core_Timing, "Integer overflow, use max value"); - return std::numeric_limits::max(); - } - if (static_cast(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(1000000000)).first; } u64 msToClockCycles(std::chrono::milliseconds ns) { @@ -69,4 +62,22 @@ u64 CpuCyclesToClockCycles(u64 ticks) { return Common::Divide128On32(temporal, static_cast(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(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(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(Hardware::BASE_CLOCK_RATE)).first; + return std::chrono::microseconds(us); +} + } // namespace Core::Timing -- cgit v1.2.3