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core_timing: Split off utility functions into core_timing_util

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This commit is contained in:
MerryMage 2018-07-24 11:03:24 +01:00
parent b8459d2778
commit 44646e2ea0
12 changed files with 137 additions and 105 deletions
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53
src/core/core_timing.h
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@ -23,59 +23,6 @@
namespace CoreTiming {
// 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
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);
}
inline s64 nsToCycles(int ns) {
return BASE_CLOCK_RATE * static_cast<s64>(ns) / 1000000000;
}
s64 nsToCycles(s64 ns);
s64 nsToCycles(u64 ns);
inline u64 cyclesToNs(s64 cycles) {
return cycles * 1000000000 / BASE_CLOCK_RATE;
}
inline s64 cyclesToUs(s64 cycles) {
return cycles * 1000000 / BASE_CLOCK_RATE;
}
inline u64 cyclesToMs(s64 cycles) {
return cycles * 1000 / BASE_CLOCK_RATE;
}
/**
* CoreTiming begins at the boundary of timing slice -1. An initial call to Advance() is
* required to end slice -1 and start slice 0 before the first cycle of code is executed.