97 lines
2.6 KiB
C++
97 lines
2.6 KiB
C++
// Copyright 2021 Dolphin Emulator Project
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// SPDX-License-Identifier: GPL-2.0-or-later
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#include <functional>
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#include <vector>
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#include "Common/Arm64Emitter.h"
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#include "Common/BitUtils.h"
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#include "Common/CommonTypes.h"
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#include "Common/ScopeGuard.h"
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#include "Core/Core.h"
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#include "Core/PowerPC/Interpreter/Interpreter_FPUtils.h"
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#include "Core/PowerPC/JitArm64/Jit.h"
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#include "Core/PowerPC/PowerPC.h"
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#include "Core/System.h"
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#include "../TestValues.h"
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#include <gtest/gtest.h>
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namespace
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{
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using namespace Arm64Gen;
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class TestFPRF : public JitArm64
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{
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public:
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explicit TestFPRF(Core::System& system) : JitArm64(system)
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{
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const Common::ScopedJITPageWriteAndNoExecute enable_jit_page_writes;
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AllocCodeSpace(4096);
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const u8* raw_fprf_single = GetCodePtr();
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GenerateFPRF(true);
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const u8* raw_fprf_double = GetCodePtr();
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GenerateFPRF(false);
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auto& ppc_state = system.GetPPCState();
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fprf_single = Common::BitCast<void (*)(u32)>(GetCodePtr());
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MOV(ARM64Reg::X15, ARM64Reg::X30);
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MOV(ARM64Reg::X14, PPC_REG);
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MOVP2R(PPC_REG, &ppc_state);
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BL(raw_fprf_single);
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MOV(ARM64Reg::X30, ARM64Reg::X15);
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MOV(PPC_REG, ARM64Reg::X14);
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RET();
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fprf_double = Common::BitCast<void (*)(u64)>(GetCodePtr());
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MOV(ARM64Reg::X15, ARM64Reg::X30);
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MOV(ARM64Reg::X14, PPC_REG);
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MOVP2R(PPC_REG, &ppc_state);
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BL(raw_fprf_double);
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MOV(ARM64Reg::X30, ARM64Reg::X15);
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MOV(PPC_REG, ARM64Reg::X14);
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RET();
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}
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std::function<void(u32)> fprf_single;
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std::function<void(u64)> fprf_double;
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};
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} // namespace
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static u32 RunUpdateFPRF(PowerPC::PowerPCState& ppc_state, const std::function<void()>& f)
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{
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ppc_state.fpscr.Hex = 0x12345678;
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f();
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return ppc_state.fpscr.Hex;
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}
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TEST(JitArm64, FPRF)
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{
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Core::DeclareAsCPUThread();
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Common::ScopeGuard cpu_thread_guard([] { Core::UndeclareAsCPUThread(); });
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auto& system = Core::System::GetInstance();
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auto& ppc_state = system.GetPPCState();
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TestFPRF test(system);
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for (const u64 double_input : double_test_values)
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{
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const u32 expected_double = RunUpdateFPRF(
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ppc_state, [&] { ppc_state.UpdateFPRFDouble(Common::BitCast<double>(double_input)); });
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const u32 actual_double = RunUpdateFPRF(ppc_state, [&] { test.fprf_double(double_input); });
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EXPECT_EQ(expected_double, actual_double);
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const u32 single_input = ConvertToSingle(double_input);
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const u32 expected_single = RunUpdateFPRF(
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ppc_state, [&] { ppc_state.UpdateFPRFSingle(Common::BitCast<float>(single_input)); });
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const u32 actual_single = RunUpdateFPRF(ppc_state, [&] { test.fprf_single(single_input); });
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EXPECT_EQ(expected_single, actual_single);
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}
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}
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