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Consistent _umul128 call on all platforms

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This commit is contained in:
Tom Lally 2022-08-30 11:49:12 +01:00
parent e03cafe729
commit 73ccbe298b
1 changed files with 0 additions and 8 deletions
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8
src/Cafe/HW/Espresso/PPCTimer.cpp
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@ -106,11 +106,7 @@ uint64 PPCTimer_microsecondsToTsc(uint64 us)
uint64 PPCTimer_tscToMicroseconds(uint64 us)
{
uint128_t r{};
#if BOOST_OS_WINDOWS
r.low = _umul128(us, 1000000ULL, &r.high);
#else
r.low = _umul128(us, 1000000ULL, (unsigned long long*)&r.high);
#endif
uint64 remainder;
@ -146,11 +142,7 @@ uint64 PPCTimer_getFromRDTSC()
rdtscDif = rdtscDif & ~(uint64)((sint64)rdtscDif >> 63);
uint128_t diff{};
#if BOOST_OS_WINDOWS
diff.low = _umul128(rdtscDif, Espresso::CORE_CLOCK, &diff.high);
#else
diff.low = _umul128(rdtscDif, Espresso::CORE_CLOCK, (unsigned long long*)&diff.high);
#endif
if(rdtscCurrentMeasure > _rdtscLastMeasure)
_rdtscLastMeasure = rdtscCurrentMeasure; // only travel forward in time