mirror of
https://git.suyu.dev/suyu/dynarmic.git
synced 2026-01-09 16:08:04 +01:00
557a01a787
This will be used to implement the half-precision floating-point variants of FCMEQ in following changes.
41 lines
1.5 KiB
C++
41 lines
1.5 KiB
C++
/* This file is part of the dynarmic project.
|
|
* Copyright (c) 2019 MerryMage
|
|
* This software may be used and distributed according to the terms of the GNU
|
|
* General Public License version 2 or any later version.
|
|
*/
|
|
|
|
#include "common/fp/fpcr.h"
|
|
#include "common/fp/fpsr.h"
|
|
#include "common/fp/op/FPCompare.h"
|
|
#include "common/fp/process_exception.h"
|
|
#include "common/fp/unpacked.h"
|
|
|
|
namespace Dynarmic::FP {
|
|
|
|
template <typename FPT>
|
|
bool FPCompareEQ(FPT lhs, FPT rhs, FPCR fpcr, FPSR& fpsr) {
|
|
const auto unpacked1 = FPUnpack(lhs, fpcr, fpsr);
|
|
const auto unpacked2 = FPUnpack(rhs, fpcr, fpsr);
|
|
const auto type1 = std::get<FPType>(unpacked1);
|
|
const auto type2 = std::get<FPType>(unpacked2);
|
|
const auto& value1 = std::get<FPUnpacked>(unpacked1);
|
|
const auto& value2 = std::get<FPUnpacked>(unpacked2);
|
|
|
|
if (type1 == FPType::QNaN || type1 == FPType::SNaN ||
|
|
type2 == FPType::QNaN || type2 == FPType::SNaN) {
|
|
if (type1 == FPType::SNaN || type2 == FPType::SNaN) {
|
|
FPProcessException(FPExc::InvalidOp, fpcr, fpsr);
|
|
}
|
|
|
|
// Comparisons against NaN are never equal.
|
|
return false;
|
|
}
|
|
|
|
return value1 == value2 || (type1 == FPType::Zero && type2 == FPType::Zero);
|
|
}
|
|
|
|
template bool FPCompareEQ<u16>(u16 lhs, u16 rhs, FPCR fpcr, FPSR& fpsr);
|
|
template bool FPCompareEQ<u32>(u32 lhs, u32 rhs, FPCR fpcr, FPSR& fpsr);
|
|
template bool FPCompareEQ<u64>(u64 lhs, u64 rhs, FPCR fpcr, FPSR& fpsr);
|
|
|
|
} // namespace Dynarmic::FP
|