mirror of
https://github.com/pineappleEA/pineapple-src.git
synced 2024-12-01 22:28:26 -05:00
42 lines
811 B
C++
42 lines
811 B
C++
|
// Copyright 2019 yuzu Emulator Project
|
||
|
|
// Licensed under GPLv2 or any later version
|
||
|
|
// Refer to the license.txt file included.
|
||
|
|
|
||
|
|
#ifdef _MSC_VER
|
||
|
|
#include <intrin.h>
|
||
|
|
|
||
|
|
#pragma intrinsic(_umul128)
|
||
|
|
#pragma intrinsic(_udiv128)
|
||
|
|
#endif
|
||
|
|
#include <cstring>
|
||
|
|
#include "common/uint128.h"
|
||
|
|
|
||
|
|
namespace Common {
|
||
|
|
|
||
|
|
#ifdef _MSC_VER
|
||
|
|
|
||
|
|
u64 MultiplyAndDivide64(u64 a, u64 b, u64 d) {
|
||
|
|
u128 r{};
|
||
|
|
r[0] = _umul128(a, b, &r[1]);
|
||
|
|
u64 remainder;
|
||
|
|
#if _MSC_VER < 1923
|
||
|
|
return udiv128(r[1], r[0], d, &remainder);
|
||
|
|
#else
|
||
|
|
return _udiv128(r[1], r[0], d, &remainder);
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
#else
|
||
|
|
|
||
|
|
u64 MultiplyAndDivide64(u64 a, u64 b, u64 d) {
|
||
|
|
const u64 diva = a / d;
|
||
|
|
const u64 moda = a % d;
|
||
|
|
const u64 divb = b / d;
|
||
|
|
const u64 modb = b % d;
|
||
|
|
return diva * b + moda * divb + moda * modb / d;
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif
|
||
|
|
|
||
|
|
} // namespace Common
|