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fp: Implement FPUnpack

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MerryMage 2018-06-27 13:52:20 +01:00
parent 4875658917
commit 4ab029c114
5 changed files with 135 additions and 0 deletions
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tests/fp/unpacked_tests.cpp Normal file
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/* This file is part of the dynarmic project.
* Copyright (c) 2018 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 <catch.hpp>
#include "common/fp/unpacked.h"
using namespace Dynarmic;
using namespace Dynarmic::FP;
TEST_CASE("FPUnpack Tests", "[fp]") {
const static std::vector<std::tuple<u32, std::tuple<FPType, bool, FPUnpacked<u64>>, u32>> test_cases {
{0x00000000, {FPType::Zero, false, {false, 0, 0}}, 0},
{0x7F800000, {FPType::Infinity, false, {false, 1000000, 1}}, 0},
{0xFF800000, {FPType::Infinity, true, {true, 1000000, 1}}, 0},
{0x7F800001, {FPType::SNaN, false, {false, 0, 0}}, 0},
{0xFF800001, {FPType::SNaN, true, {true, 0, 0}}, 0},
{0x7FC00001, {FPType::QNaN, false, {false, 0, 0}}, 0},
{0xFFC00001, {FPType::QNaN, true, {true, 0, 0}}, 0},
{0x00000001, {FPType::Nonzero, false, {false, -149, 1}}, 0}, // Smallest single precision denormal is 2^-149.
};
const FPCR fpcr;
for (const auto& [input, expected_output, expected_fpsr] : test_cases) {
FPSR fpsr;
const auto output = FPUnpack<u32>(input, fpcr, fpsr);
INFO("Input: " << std::hex << input);
REQUIRE(output == expected_output);
REQUIRE(fpsr.Value() == expected_fpsr);
}
}