mirror of
https://github.com/Ryujinx/Ryujinx.git
synced 2024-08-19 15:18:43 +02:00
e603b7afbc
* Update CpuTest.cs * Update CpuTestSimd.cs * Update CpuTestSimdReg.cs * Update InstEmitSimdCmp.cs * Update SoftFloat.cs * Update InstEmitAluHelper.cs * Update InstEmitSimdArithmetic.cs * Update InstEmitSimdHelper.cs * Update VectorHelper.cs * Update InstEmitSimdCvt.cs * Update InstEmitSimdArithmetic.cs * Update CpuTestSimd.cs * Update InstEmitSimdArithmetic.cs * Update OpCodeTable.cs * Update InstEmitSimdArithmetic.cs * Update InstEmitSimdCmp.cs * Update InstEmitSimdCvt.cs * Update CpuTestSimd.cs * Update CpuTestSimdReg.cs * Create CpuTestSimdFcond.cs * Update OpCodeTable.cs * Update InstEmitSimdMove.cs * Update CpuTestSimdIns.cs * Create CpuTestSimdExt.cs * Nit. * Update PackageReference.
599 lines
23 KiB
C#
599 lines
23 KiB
C#
using ChocolArm64;
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using ChocolArm64.Memory;
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using ChocolArm64.State;
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using NUnit.Framework;
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using Ryujinx.Tests.Unicorn;
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using System;
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using System.Runtime.InteropServices;
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using System.Runtime.Intrinsics;
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using System.Runtime.Intrinsics.X86;
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using System.Threading;
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namespace Ryujinx.Tests.Cpu
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{
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[TestFixture]
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public class CpuTest
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{
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protected long Position { get; private set; }
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private long _size;
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private long _entryPoint;
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private IntPtr _ramPointer;
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private MemoryManager _memory;
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private CpuThread _thread;
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private static bool _unicornAvailable;
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private UnicornAArch64 _unicornEmu;
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static CpuTest()
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{
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_unicornAvailable = UnicornAArch64.IsAvailable();
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if (!_unicornAvailable)
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{
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Console.WriteLine("WARNING: Could not find Unicorn.");
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}
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}
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[SetUp]
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public void Setup()
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{
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Position = 0x1000;
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_size = 0x1000;
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_entryPoint = Position;
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Translator translator = new Translator();
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_ramPointer = Marshal.AllocHGlobal(new IntPtr(_size));
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_memory = new MemoryManager(_ramPointer);
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_memory.Map(Position, 0, _size);
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_thread = new CpuThread(translator, _memory, _entryPoint);
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if (_unicornAvailable)
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{
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_unicornEmu = new UnicornAArch64();
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_unicornEmu.MemoryMap((ulong)Position, (ulong)_size, MemoryPermission.READ | MemoryPermission.EXEC);
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_unicornEmu.PC = (ulong)_entryPoint;
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}
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}
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[TearDown]
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public void Teardown()
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{
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Marshal.FreeHGlobal(_ramPointer);
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_memory = null;
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_thread = null;
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_unicornEmu = null;
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}
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protected void Reset()
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{
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Teardown();
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Setup();
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}
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protected void Opcode(uint opcode)
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{
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_thread.Memory.WriteUInt32(Position, opcode);
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if (_unicornAvailable)
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{
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_unicornEmu.MemoryWrite32((ulong)Position, opcode);
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}
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Position += 4;
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}
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protected void SetThreadState(ulong x0 = 0, ulong x1 = 0, ulong x2 = 0, ulong x3 = 0, ulong x31 = 0,
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Vector128<float> v0 = default(Vector128<float>),
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Vector128<float> v1 = default(Vector128<float>),
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Vector128<float> v2 = default(Vector128<float>),
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Vector128<float> v3 = default(Vector128<float>),
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bool overflow = false, bool carry = false, bool zero = false, bool negative = false,
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int fpcr = 0x0, int fpsr = 0x0)
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{
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_thread.ThreadState.X0 = x0;
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_thread.ThreadState.X1 = x1;
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_thread.ThreadState.X2 = x2;
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_thread.ThreadState.X3 = x3;
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_thread.ThreadState.X31 = x31;
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_thread.ThreadState.V0 = v0;
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_thread.ThreadState.V1 = v1;
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_thread.ThreadState.V2 = v2;
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_thread.ThreadState.V3 = v3;
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_thread.ThreadState.Overflow = overflow;
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_thread.ThreadState.Carry = carry;
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_thread.ThreadState.Zero = zero;
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_thread.ThreadState.Negative = negative;
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_thread.ThreadState.Fpcr = fpcr;
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_thread.ThreadState.Fpsr = fpsr;
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if (_unicornAvailable)
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{
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_unicornEmu.X[0] = x0;
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_unicornEmu.X[1] = x1;
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_unicornEmu.X[2] = x2;
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_unicornEmu.X[3] = x3;
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_unicornEmu.SP = x31;
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_unicornEmu.Q[0] = v0;
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_unicornEmu.Q[1] = v1;
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_unicornEmu.Q[2] = v2;
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_unicornEmu.Q[3] = v3;
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_unicornEmu.OverflowFlag = overflow;
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_unicornEmu.CarryFlag = carry;
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_unicornEmu.ZeroFlag = zero;
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_unicornEmu.NegativeFlag = negative;
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_unicornEmu.Fpcr = fpcr;
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_unicornEmu.Fpsr = fpsr;
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}
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}
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protected void ExecuteOpcodes()
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{
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using (ManualResetEvent wait = new ManualResetEvent(false))
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{
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_thread.ThreadState.Break += (sender, e) => _thread.StopExecution();
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_thread.WorkFinished += (sender, e) => wait.Set();
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_thread.Execute();
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wait.WaitOne();
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}
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if (_unicornAvailable)
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{
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_unicornEmu.RunForCount((ulong)(Position - _entryPoint - 8) / 4);
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}
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}
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protected CpuThreadState GetThreadState() => _thread.ThreadState;
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protected CpuThreadState SingleOpcode(uint opcode,
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ulong x0 = 0, ulong x1 = 0, ulong x2 = 0, ulong x3 = 0, ulong x31 = 0,
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Vector128<float> v0 = default(Vector128<float>),
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Vector128<float> v1 = default(Vector128<float>),
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Vector128<float> v2 = default(Vector128<float>),
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Vector128<float> v3 = default(Vector128<float>),
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bool overflow = false, bool carry = false, bool zero = false, bool negative = false,
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int fpcr = 0x0, int fpsr = 0x0)
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{
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Opcode(opcode);
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Opcode(0xD4200000); // BRK #0
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Opcode(0xD65F03C0); // RET
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SetThreadState(x0, x1, x2, x3, x31, v0, v1, v2, v3, overflow, carry, zero, negative, fpcr, fpsr);
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ExecuteOpcodes();
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return GetThreadState();
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}
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/// <summary>Rounding Mode control field.</summary>
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public enum RMode
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{
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/// <summary>Round to Nearest mode.</summary>
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Rn,
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/// <summary>Round towards Plus Infinity mode.</summary>
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Rp,
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/// <summary>Round towards Minus Infinity mode.</summary>
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Rm,
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/// <summary>Round towards Zero mode.</summary>
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Rz
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};
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/// <summary>Floating-point Control Register.</summary>
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protected enum Fpcr
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{
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/// <summary>Rounding Mode control field.</summary>
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RMode = 22,
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/// <summary>Flush-to-zero mode control bit.</summary>
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Fz = 24,
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/// <summary>Default NaN mode control bit.</summary>
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Dn = 25,
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/// <summary>Alternative half-precision control bit.</summary>
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Ahp = 26
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}
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/// <summary>Floating-point Status Register.</summary>
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[Flags] protected enum Fpsr
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{
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None = 0,
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/// <summary>Invalid Operation cumulative floating-point exception bit.</summary>
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Ioc = 1 << 0,
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/// <summary>Divide by Zero cumulative floating-point exception bit.</summary>
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Dzc = 1 << 1,
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/// <summary>Overflow cumulative floating-point exception bit.</summary>
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Ofc = 1 << 2,
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/// <summary>Underflow cumulative floating-point exception bit.</summary>
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Ufc = 1 << 3,
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/// <summary>Inexact cumulative floating-point exception bit.</summary>
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Ixc = 1 << 4,
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/// <summary>Input Denormal cumulative floating-point exception bit.</summary>
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Idc = 1 << 7,
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/// <summary>Cumulative saturation bit.</summary>
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Qc = 1 << 27
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}
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[Flags] protected enum FpSkips
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{
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None = 0,
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IfNaNS = 1,
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IfNaND = 2,
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IfUnderflow = 4,
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IfOverflow = 8
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}
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protected enum FpTolerances
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{
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None,
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UpToOneUlpsS,
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UpToOneUlpsD
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}
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protected void CompareAgainstUnicorn(
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Fpsr fpsrMask = Fpsr.None,
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FpSkips fpSkips = FpSkips.None,
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FpTolerances fpTolerances = FpTolerances.None)
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{
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if (!_unicornAvailable)
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{
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return;
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}
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if (fpSkips != FpSkips.None)
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{
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ManageFpSkips(fpSkips);
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}
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Assert.That(_thread.ThreadState.X0, Is.EqualTo(_unicornEmu.X[0]));
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Assert.That(_thread.ThreadState.X1, Is.EqualTo(_unicornEmu.X[1]));
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Assert.That(_thread.ThreadState.X2, Is.EqualTo(_unicornEmu.X[2]));
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Assert.That(_thread.ThreadState.X3, Is.EqualTo(_unicornEmu.X[3]));
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Assert.That(_thread.ThreadState.X4, Is.EqualTo(_unicornEmu.X[4]));
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Assert.That(_thread.ThreadState.X5, Is.EqualTo(_unicornEmu.X[5]));
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Assert.That(_thread.ThreadState.X6, Is.EqualTo(_unicornEmu.X[6]));
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Assert.That(_thread.ThreadState.X7, Is.EqualTo(_unicornEmu.X[7]));
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Assert.That(_thread.ThreadState.X8, Is.EqualTo(_unicornEmu.X[8]));
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Assert.That(_thread.ThreadState.X9, Is.EqualTo(_unicornEmu.X[9]));
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Assert.That(_thread.ThreadState.X10, Is.EqualTo(_unicornEmu.X[10]));
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Assert.That(_thread.ThreadState.X11, Is.EqualTo(_unicornEmu.X[11]));
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Assert.That(_thread.ThreadState.X12, Is.EqualTo(_unicornEmu.X[12]));
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Assert.That(_thread.ThreadState.X13, Is.EqualTo(_unicornEmu.X[13]));
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Assert.That(_thread.ThreadState.X14, Is.EqualTo(_unicornEmu.X[14]));
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Assert.That(_thread.ThreadState.X15, Is.EqualTo(_unicornEmu.X[15]));
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Assert.That(_thread.ThreadState.X16, Is.EqualTo(_unicornEmu.X[16]));
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Assert.That(_thread.ThreadState.X17, Is.EqualTo(_unicornEmu.X[17]));
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Assert.That(_thread.ThreadState.X18, Is.EqualTo(_unicornEmu.X[18]));
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Assert.That(_thread.ThreadState.X19, Is.EqualTo(_unicornEmu.X[19]));
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Assert.That(_thread.ThreadState.X20, Is.EqualTo(_unicornEmu.X[20]));
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Assert.That(_thread.ThreadState.X21, Is.EqualTo(_unicornEmu.X[21]));
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Assert.That(_thread.ThreadState.X22, Is.EqualTo(_unicornEmu.X[22]));
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Assert.That(_thread.ThreadState.X23, Is.EqualTo(_unicornEmu.X[23]));
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Assert.That(_thread.ThreadState.X24, Is.EqualTo(_unicornEmu.X[24]));
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Assert.That(_thread.ThreadState.X25, Is.EqualTo(_unicornEmu.X[25]));
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Assert.That(_thread.ThreadState.X26, Is.EqualTo(_unicornEmu.X[26]));
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Assert.That(_thread.ThreadState.X27, Is.EqualTo(_unicornEmu.X[27]));
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Assert.That(_thread.ThreadState.X28, Is.EqualTo(_unicornEmu.X[28]));
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Assert.That(_thread.ThreadState.X29, Is.EqualTo(_unicornEmu.X[29]));
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Assert.That(_thread.ThreadState.X30, Is.EqualTo(_unicornEmu.X[30]));
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Assert.That(_thread.ThreadState.X31, Is.EqualTo(_unicornEmu.SP));
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if (fpTolerances == FpTolerances.None)
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{
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Assert.That(_thread.ThreadState.V0, Is.EqualTo(_unicornEmu.Q[0]));
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}
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else
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{
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ManageFpTolerances(fpTolerances);
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}
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Assert.That(_thread.ThreadState.V1, Is.EqualTo(_unicornEmu.Q[1]));
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Assert.That(_thread.ThreadState.V2, Is.EqualTo(_unicornEmu.Q[2]));
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Assert.That(_thread.ThreadState.V3, Is.EqualTo(_unicornEmu.Q[3]));
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Assert.That(_thread.ThreadState.V4, Is.EqualTo(_unicornEmu.Q[4]));
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Assert.That(_thread.ThreadState.V5, Is.EqualTo(_unicornEmu.Q[5]));
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Assert.That(_thread.ThreadState.V6, Is.EqualTo(_unicornEmu.Q[6]));
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Assert.That(_thread.ThreadState.V7, Is.EqualTo(_unicornEmu.Q[7]));
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Assert.That(_thread.ThreadState.V8, Is.EqualTo(_unicornEmu.Q[8]));
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Assert.That(_thread.ThreadState.V9, Is.EqualTo(_unicornEmu.Q[9]));
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Assert.That(_thread.ThreadState.V10, Is.EqualTo(_unicornEmu.Q[10]));
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Assert.That(_thread.ThreadState.V11, Is.EqualTo(_unicornEmu.Q[11]));
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Assert.That(_thread.ThreadState.V12, Is.EqualTo(_unicornEmu.Q[12]));
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Assert.That(_thread.ThreadState.V13, Is.EqualTo(_unicornEmu.Q[13]));
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Assert.That(_thread.ThreadState.V14, Is.EqualTo(_unicornEmu.Q[14]));
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Assert.That(_thread.ThreadState.V15, Is.EqualTo(_unicornEmu.Q[15]));
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Assert.That(_thread.ThreadState.V16, Is.EqualTo(_unicornEmu.Q[16]));
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Assert.That(_thread.ThreadState.V17, Is.EqualTo(_unicornEmu.Q[17]));
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Assert.That(_thread.ThreadState.V18, Is.EqualTo(_unicornEmu.Q[18]));
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Assert.That(_thread.ThreadState.V19, Is.EqualTo(_unicornEmu.Q[19]));
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Assert.That(_thread.ThreadState.V20, Is.EqualTo(_unicornEmu.Q[20]));
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Assert.That(_thread.ThreadState.V21, Is.EqualTo(_unicornEmu.Q[21]));
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Assert.That(_thread.ThreadState.V22, Is.EqualTo(_unicornEmu.Q[22]));
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Assert.That(_thread.ThreadState.V23, Is.EqualTo(_unicornEmu.Q[23]));
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Assert.That(_thread.ThreadState.V24, Is.EqualTo(_unicornEmu.Q[24]));
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Assert.That(_thread.ThreadState.V25, Is.EqualTo(_unicornEmu.Q[25]));
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Assert.That(_thread.ThreadState.V26, Is.EqualTo(_unicornEmu.Q[26]));
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Assert.That(_thread.ThreadState.V27, Is.EqualTo(_unicornEmu.Q[27]));
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Assert.That(_thread.ThreadState.V28, Is.EqualTo(_unicornEmu.Q[28]));
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Assert.That(_thread.ThreadState.V29, Is.EqualTo(_unicornEmu.Q[29]));
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Assert.That(_thread.ThreadState.V30, Is.EqualTo(_unicornEmu.Q[30]));
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Assert.That(_thread.ThreadState.V31, Is.EqualTo(_unicornEmu.Q[31]));
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Assert.That(_thread.ThreadState.Fpcr, Is.EqualTo(_unicornEmu.Fpcr));
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Assert.That(_thread.ThreadState.Fpsr & (int)fpsrMask, Is.EqualTo(_unicornEmu.Fpsr & (int)fpsrMask));
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Assert.That(_thread.ThreadState.Overflow, Is.EqualTo(_unicornEmu.OverflowFlag));
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Assert.That(_thread.ThreadState.Carry, Is.EqualTo(_unicornEmu.CarryFlag));
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Assert.That(_thread.ThreadState.Zero, Is.EqualTo(_unicornEmu.ZeroFlag));
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Assert.That(_thread.ThreadState.Negative, Is.EqualTo(_unicornEmu.NegativeFlag));
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}
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private void ManageFpSkips(FpSkips fpSkips)
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{
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if (fpSkips.HasFlag(FpSkips.IfNaNS))
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{
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if (float.IsNaN(VectorExtractSingle(_unicornEmu.Q[0], (byte)0)))
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{
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Assert.Ignore("NaN test.");
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}
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}
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else if (fpSkips.HasFlag(FpSkips.IfNaND))
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{
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if (double.IsNaN(VectorExtractDouble(_unicornEmu.Q[0], (byte)0)))
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{
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Assert.Ignore("NaN test.");
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}
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}
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if (fpSkips.HasFlag(FpSkips.IfUnderflow))
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{
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if ((_unicornEmu.Fpsr & (int)Fpsr.Ufc) != 0)
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{
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Assert.Ignore("Underflow test.");
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}
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}
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if (fpSkips.HasFlag(FpSkips.IfOverflow))
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{
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if ((_unicornEmu.Fpsr & (int)Fpsr.Ofc) != 0)
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{
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Assert.Ignore("Overflow test.");
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}
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}
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}
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private void ManageFpTolerances(FpTolerances fpTolerances)
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{
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if (!Is.EqualTo(_unicornEmu.Q[0]).ApplyTo(_thread.ThreadState.V0).IsSuccess)
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{
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if (fpTolerances == FpTolerances.UpToOneUlpsS)
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{
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if (IsNormalOrSubnormalS(VectorExtractSingle(_unicornEmu.Q[0], (byte)0)) &&
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IsNormalOrSubnormalS(VectorExtractSingle(_thread.ThreadState.V0, (byte)0)))
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{
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Assert.That (VectorExtractSingle(_thread.ThreadState.V0, (byte)0),
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Is.EqualTo(VectorExtractSingle(_unicornEmu.Q[0], (byte)0)).Within(1).Ulps);
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Assert.That (VectorExtractSingle(_thread.ThreadState.V0, (byte)1),
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Is.EqualTo(VectorExtractSingle(_unicornEmu.Q[0], (byte)1)).Within(1).Ulps);
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Assert.That (VectorExtractSingle(_thread.ThreadState.V0, (byte)2),
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Is.EqualTo(VectorExtractSingle(_unicornEmu.Q[0], (byte)2)).Within(1).Ulps);
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Assert.That (VectorExtractSingle(_thread.ThreadState.V0, (byte)3),
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Is.EqualTo(VectorExtractSingle(_unicornEmu.Q[0], (byte)3)).Within(1).Ulps);
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Console.WriteLine(fpTolerances);
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}
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else
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{
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Assert.That(_thread.ThreadState.V0, Is.EqualTo(_unicornEmu.Q[0]));
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}
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}
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if (fpTolerances == FpTolerances.UpToOneUlpsD)
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{
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if (IsNormalOrSubnormalD(VectorExtractDouble(_unicornEmu.Q[0], (byte)0)) &&
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IsNormalOrSubnormalD(VectorExtractDouble(_thread.ThreadState.V0, (byte)0)))
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{
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Assert.That (VectorExtractDouble(_thread.ThreadState.V0, (byte)0),
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Is.EqualTo(VectorExtractDouble(_unicornEmu.Q[0], (byte)0)).Within(1).Ulps);
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Assert.That (VectorExtractDouble(_thread.ThreadState.V0, (byte)1),
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Is.EqualTo(VectorExtractDouble(_unicornEmu.Q[0], (byte)1)).Within(1).Ulps);
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Console.WriteLine(fpTolerances);
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}
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else
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{
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Assert.That(_thread.ThreadState.V0, Is.EqualTo(_unicornEmu.Q[0]));
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}
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}
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}
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bool IsNormalOrSubnormalS(float f) => float.IsNormal(f) || float.IsSubnormal(f);
|
|
|
|
bool IsNormalOrSubnormalD(double d) => double.IsNormal(d) || double.IsSubnormal(d);
|
|
}
|
|
|
|
protected static Vector128<float> MakeVectorE0(double e0)
|
|
{
|
|
if (!Sse2.IsSupported)
|
|
{
|
|
throw new PlatformNotSupportedException();
|
|
}
|
|
|
|
return Sse.StaticCast<long, float>(Sse2.SetVector128(0, BitConverter.DoubleToInt64Bits(e0)));
|
|
}
|
|
|
|
protected static Vector128<float> MakeVectorE0E1(double e0, double e1)
|
|
{
|
|
if (!Sse2.IsSupported)
|
|
{
|
|
throw new PlatformNotSupportedException();
|
|
}
|
|
|
|
return Sse.StaticCast<long, float>(
|
|
Sse2.SetVector128(BitConverter.DoubleToInt64Bits(e1), BitConverter.DoubleToInt64Bits(e0)));
|
|
}
|
|
|
|
protected static Vector128<float> MakeVectorE1(double e1)
|
|
{
|
|
if (!Sse2.IsSupported)
|
|
{
|
|
throw new PlatformNotSupportedException();
|
|
}
|
|
|
|
return Sse.StaticCast<long, float>(Sse2.SetVector128(BitConverter.DoubleToInt64Bits(e1), 0));
|
|
}
|
|
|
|
protected static float VectorExtractSingle(Vector128<float> vector, byte index)
|
|
{
|
|
if (!Sse41.IsSupported)
|
|
{
|
|
throw new PlatformNotSupportedException();
|
|
}
|
|
|
|
int value = Sse41.Extract(Sse.StaticCast<float, int>(vector), index);
|
|
|
|
return BitConverter.Int32BitsToSingle(value);
|
|
}
|
|
|
|
protected static double VectorExtractDouble(Vector128<float> vector, byte index)
|
|
{
|
|
if (!Sse41.IsSupported)
|
|
{
|
|
throw new PlatformNotSupportedException();
|
|
}
|
|
|
|
long value = Sse41.Extract(Sse.StaticCast<float, long>(vector), index);
|
|
|
|
return BitConverter.Int64BitsToDouble(value);
|
|
}
|
|
|
|
protected static Vector128<float> MakeVectorE0(ulong e0)
|
|
{
|
|
if (!Sse2.IsSupported)
|
|
{
|
|
throw new PlatformNotSupportedException();
|
|
}
|
|
|
|
return Sse.StaticCast<ulong, float>(Sse2.SetVector128(0, e0));
|
|
}
|
|
|
|
protected static Vector128<float> MakeVectorE0E1(ulong e0, ulong e1)
|
|
{
|
|
if (!Sse2.IsSupported)
|
|
{
|
|
throw new PlatformNotSupportedException();
|
|
}
|
|
|
|
return Sse.StaticCast<ulong, float>(Sse2.SetVector128(e1, e0));
|
|
}
|
|
|
|
protected static Vector128<float> MakeVectorE1(ulong e1)
|
|
{
|
|
if (!Sse2.IsSupported)
|
|
{
|
|
throw new PlatformNotSupportedException();
|
|
}
|
|
|
|
return Sse.StaticCast<ulong, float>(Sse2.SetVector128(e1, 0));
|
|
}
|
|
|
|
protected static ulong GetVectorE0(Vector128<float> vector)
|
|
{
|
|
if (!Sse41.IsSupported)
|
|
{
|
|
throw new PlatformNotSupportedException();
|
|
}
|
|
|
|
return Sse41.Extract(Sse.StaticCast<float, ulong>(vector), (byte)0);
|
|
}
|
|
|
|
protected static ulong GetVectorE1(Vector128<float> vector)
|
|
{
|
|
if (!Sse41.IsSupported)
|
|
{
|
|
throw new PlatformNotSupportedException();
|
|
}
|
|
|
|
return Sse41.Extract(Sse.StaticCast<float, ulong>(vector), (byte)1);
|
|
}
|
|
|
|
protected static ushort GenNormalH()
|
|
{
|
|
uint rnd;
|
|
|
|
do rnd = TestContext.CurrentContext.Random.NextUShort();
|
|
while (( rnd & 0x7C00u) == 0u ||
|
|
(~rnd & 0x7C00u) == 0u);
|
|
|
|
return (ushort)rnd;
|
|
}
|
|
|
|
protected static ushort GenSubnormalH()
|
|
{
|
|
uint rnd;
|
|
|
|
do rnd = TestContext.CurrentContext.Random.NextUShort();
|
|
while ((rnd & 0x03FFu) == 0u);
|
|
|
|
return (ushort)(rnd & 0x83FFu);
|
|
}
|
|
|
|
protected static uint GenNormalS()
|
|
{
|
|
uint rnd;
|
|
|
|
do rnd = TestContext.CurrentContext.Random.NextUInt();
|
|
while (( rnd & 0x7F800000u) == 0u ||
|
|
(~rnd & 0x7F800000u) == 0u);
|
|
|
|
return rnd;
|
|
}
|
|
|
|
protected static uint GenSubnormalS()
|
|
{
|
|
uint rnd;
|
|
|
|
do rnd = TestContext.CurrentContext.Random.NextUInt();
|
|
while ((rnd & 0x007FFFFFu) == 0u);
|
|
|
|
return rnd & 0x807FFFFFu;
|
|
}
|
|
|
|
protected static ulong GenNormalD()
|
|
{
|
|
ulong rnd;
|
|
|
|
do rnd = TestContext.CurrentContext.Random.NextULong();
|
|
while (( rnd & 0x7FF0000000000000ul) == 0ul ||
|
|
(~rnd & 0x7FF0000000000000ul) == 0ul);
|
|
|
|
return rnd;
|
|
}
|
|
|
|
protected static ulong GenSubnormalD()
|
|
{
|
|
ulong rnd;
|
|
|
|
do rnd = TestContext.CurrentContext.Random.NextULong();
|
|
while ((rnd & 0x000FFFFFFFFFFFFFul) == 0ul);
|
|
|
|
return rnd & 0x800FFFFFFFFFFFFFul;
|
|
}
|
|
}
|
|
}
|