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Added _udiv128 to precompiled.h

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This commit is contained in:
Tom Lally 2022-09-07 22:42:19 +01:00
parent 4eaa600b57
commit 05dd4e57e7
2 changed files with 10 additions and 11 deletions
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11
src/Cafe/HW/Espresso/PPCTimer.cpp
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@ -108,14 +108,8 @@ uint64 PPCTimer_tscToMicroseconds(uint64 us)
uint128_t r{}; uint128_t r{};
r.low = _umul128(us, 1000000ULL, &r.high); r.low = _umul128(us, 1000000ULL, &r.high);
uint64 remainder; uint64 remainder;
#if defined(_MSC_VER) && _MSC_VER >= 1923 && !defined(__clang__)
const uint64 microseconds = _udiv128(r.high, r.low, _rdtscFrequency, &remainder); const uint64 microseconds = _udiv128(r.high, r.low, _rdtscFrequency, &remainder);
#else
const uint64 microseconds = udiv128(r.low, r.high, _rdtscFrequency, &remainder);
#endif
return microseconds; return microseconds;
} }
@ -159,12 +153,7 @@ uint64 PPCTimer_getFromRDTSC()
#endif #endif
uint64 remainder; uint64 remainder;
#if defined(_MSC_VER) && _MSC_VER >= 1923 && !defined(__clang__)
uint64 elapsedTick = _udiv128(_rdtscAcc.high, _rdtscAcc.low, _rdtscFrequency, &remainder); uint64 elapsedTick = _udiv128(_rdtscAcc.high, _rdtscAcc.low, _rdtscFrequency, &remainder);
#else
uint64 elapsedTick = udiv128(_rdtscAcc.low, _rdtscAcc.high, _rdtscFrequency, &remainder);
#endif
_rdtscAcc.low = remainder; _rdtscAcc.low = remainder;
_rdtscAcc.high = 0; _rdtscAcc.high = 0;

10
src/Common/precompiled.h
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@ -210,6 +210,16 @@ typedef union _LARGE_INTEGER {
inline T& operator^= (T& a, T b) { return reinterpret_cast<T&>( reinterpret_cast<std::underlying_type<T>::type&>(a) ^= static_cast<std::underlying_type<T>::type>(b) ); } inline T& operator^= (T& a, T b) { return reinterpret_cast<T&>( reinterpret_cast<std::underlying_type<T>::type&>(a) ^= static_cast<std::underlying_type<T>::type>(b) ); }
#endif #endif
#if !defined(_MSC_VER) || defined(__clang__) // clang-cl does not support _udiv128
inline uint64 _udiv128(uint64 highDividend, uint64 lowDividend, uint64 divisor, uint64 *remainder)
{
unsigned __int128 dividend128 = (((unsigned __int128)highDividend) << 64) | ((unsigned __int128)lowDividend);
unsigned __int128 divisor128 = (unsigned __int128)divisor;
*remainder = (uint64)((dividend128 % divisor128) & 0xFFFFFFFFFFFFFFFF);
return (uint64)((dividend128 / divisor128) & 0xFFFFFFFFFFFFFFFF);
}
#endif
#if defined(_MSC_VER) #if defined(_MSC_VER)
#define UNREACHABLE __assume(false) #define UNREACHABLE __assume(false)
#elif defined(__GNUC__) #elif defined(__GNUC__)