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authorbunnei <bunneidev@gmail.com>2021-02-15 23:46:04 +0100
committerbunnei <bunneidev@gmail.com>2021-02-15 23:46:04 +0100
commit0a91599aec5a0c4d4c87d3e23fea07dbb6ced0f7 (patch)
tree1319cde17514c49d01045379d3a7ce2b4ccace0a /src/common/uint128.cpp
parentMerge pull request #5939 from Morph1984/web_types (diff)
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Diffstat (limited to 'src/common/uint128.cpp')
-rw-r--r--src/common/uint128.cpp71
1 files changed, 0 insertions, 71 deletions
diff --git a/src/common/uint128.cpp b/src/common/uint128.cpp
deleted file mode 100644
index 16bf7c828..000000000
--- a/src/common/uint128.cpp
+++ /dev/null
@@ -1,71 +0,0 @@
-// 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
-
-u128 Multiply64Into128(u64 a, u64 b) {
- u128 result;
-#ifdef _MSC_VER
- result[0] = _umul128(a, b, &result[1]);
-#else
- unsigned __int128 tmp = a;
- tmp *= b;
- std::memcpy(&result, &tmp, sizeof(u128));
-#endif
- return result;
-}
-
-std::pair<u64, u64> Divide128On32(u128 dividend, u32 divisor) {
- u64 remainder = dividend[0] % divisor;
- u64 accum = dividend[0] / divisor;
- if (dividend[1] == 0)
- return {accum, remainder};
- // We ignore dividend[1] / divisor as that overflows
- const u64 first_segment = (dividend[1] % divisor) << 32;
- accum += (first_segment / divisor) << 32;
- const u64 second_segment = (first_segment % divisor) << 32;
- accum += (second_segment / divisor);
- remainder += second_segment % divisor;
- if (remainder >= divisor) {
- accum++;
- remainder -= divisor;
- }
- return {accum, remainder};
-}
-
-} // namespace Common