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298
src/Ryujinx.Tests.Unicorn/UnicornAArch64.cs
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298
src/Ryujinx.Tests.Unicorn/UnicornAArch64.cs
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using System;
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using UnicornEngine.Const;
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namespace Ryujinx.Tests.Unicorn
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{
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public class UnicornAArch64 : IDisposable
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{
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internal readonly UnicornEngine.Unicorn uc;
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private bool _isDisposed;
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public IndexedProperty<int, ulong> X => new(GetX, SetX);
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public IndexedProperty<int, SimdValue> Q => new(GetQ, SetQ);
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public ulong LR
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{
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get => GetRegister(Arm64.UC_ARM64_REG_LR);
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set => SetRegister(Arm64.UC_ARM64_REG_LR, value);
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}
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public ulong SP
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{
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get => GetRegister(Arm64.UC_ARM64_REG_SP);
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set => SetRegister(Arm64.UC_ARM64_REG_SP, value);
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}
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public ulong PC
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{
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get => GetRegister(Arm64.UC_ARM64_REG_PC);
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set => SetRegister(Arm64.UC_ARM64_REG_PC, value);
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}
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public uint Pstate
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{
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get => (uint)GetRegister(Arm64.UC_ARM64_REG_PSTATE);
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set => SetRegister(Arm64.UC_ARM64_REG_PSTATE, value);
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}
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public int Fpcr
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{
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get => (int)GetRegister(Arm64.UC_ARM64_REG_FPCR);
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set => SetRegister(Arm64.UC_ARM64_REG_FPCR, (uint)value);
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}
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public int Fpsr
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{
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get => (int)GetRegister(Arm64.UC_ARM64_REG_FPSR);
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set => SetRegister(Arm64.UC_ARM64_REG_FPSR, (uint)value);
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}
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public bool OverflowFlag
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{
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get => (Pstate & 0x10000000u) != 0;
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set => Pstate = (Pstate & ~0x10000000u) | (value ? 0x10000000u : 0u);
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}
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public bool CarryFlag
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{
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get => (Pstate & 0x20000000u) != 0;
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set => Pstate = (Pstate & ~0x20000000u) | (value ? 0x20000000u : 0u);
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}
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public bool ZeroFlag
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{
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get => (Pstate & 0x40000000u) != 0;
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set => Pstate = (Pstate & ~0x40000000u) | (value ? 0x40000000u : 0u);
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}
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public bool NegativeFlag
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{
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get => (Pstate & 0x80000000u) != 0;
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set => Pstate = (Pstate & ~0x80000000u) | (value ? 0x80000000u : 0u);
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}
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public UnicornAArch64()
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{
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uc = new UnicornEngine.Unicorn(Common.UC_ARCH_ARM64, Common.UC_MODE_LITTLE_ENDIAN);
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SetRegister(Arm64.UC_ARM64_REG_CPACR_EL1, 0x00300000);
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}
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~UnicornAArch64()
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{
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Dispose(false);
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}
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public void Dispose()
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{
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Dispose(true);
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GC.SuppressFinalize(this);
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}
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protected virtual void Dispose(bool disposing)
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{
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if (!_isDisposed)
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{
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uc.Close();
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_isDisposed = true;
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}
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}
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public void RunForCount(ulong count)
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{
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// FIXME: untilAddr should be 0xFFFFFFFFFFFFFFFFul
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uc.EmuStart((long)this.PC, -1, 0, (long)count);
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}
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public void Step()
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{
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RunForCount(1);
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}
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private static int[] XRegisters =
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{
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Arm64.UC_ARM64_REG_X0,
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Arm64.UC_ARM64_REG_X1,
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Arm64.UC_ARM64_REG_X2,
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Arm64.UC_ARM64_REG_X3,
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Arm64.UC_ARM64_REG_X4,
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Arm64.UC_ARM64_REG_X5,
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Arm64.UC_ARM64_REG_X6,
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Arm64.UC_ARM64_REG_X7,
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Arm64.UC_ARM64_REG_X8,
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Arm64.UC_ARM64_REG_X9,
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Arm64.UC_ARM64_REG_X10,
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Arm64.UC_ARM64_REG_X11,
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Arm64.UC_ARM64_REG_X12,
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Arm64.UC_ARM64_REG_X13,
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Arm64.UC_ARM64_REG_X14,
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Arm64.UC_ARM64_REG_X15,
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Arm64.UC_ARM64_REG_X16,
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Arm64.UC_ARM64_REG_X17,
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Arm64.UC_ARM64_REG_X18,
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Arm64.UC_ARM64_REG_X19,
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Arm64.UC_ARM64_REG_X20,
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Arm64.UC_ARM64_REG_X21,
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Arm64.UC_ARM64_REG_X22,
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Arm64.UC_ARM64_REG_X23,
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Arm64.UC_ARM64_REG_X24,
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Arm64.UC_ARM64_REG_X25,
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Arm64.UC_ARM64_REG_X26,
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Arm64.UC_ARM64_REG_X27,
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Arm64.UC_ARM64_REG_X28,
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Arm64.UC_ARM64_REG_X29,
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Arm64.UC_ARM64_REG_X30,
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};
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private static int[] QRegisters =
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{
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Arm64.UC_ARM64_REG_Q0,
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Arm64.UC_ARM64_REG_Q1,
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Arm64.UC_ARM64_REG_Q2,
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Arm64.UC_ARM64_REG_Q3,
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Arm64.UC_ARM64_REG_Q4,
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Arm64.UC_ARM64_REG_Q5,
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Arm64.UC_ARM64_REG_Q6,
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Arm64.UC_ARM64_REG_Q7,
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Arm64.UC_ARM64_REG_Q8,
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Arm64.UC_ARM64_REG_Q9,
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Arm64.UC_ARM64_REG_Q10,
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Arm64.UC_ARM64_REG_Q11,
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Arm64.UC_ARM64_REG_Q12,
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Arm64.UC_ARM64_REG_Q13,
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Arm64.UC_ARM64_REG_Q14,
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Arm64.UC_ARM64_REG_Q15,
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Arm64.UC_ARM64_REG_Q16,
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Arm64.UC_ARM64_REG_Q17,
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Arm64.UC_ARM64_REG_Q18,
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Arm64.UC_ARM64_REG_Q19,
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Arm64.UC_ARM64_REG_Q20,
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Arm64.UC_ARM64_REG_Q21,
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Arm64.UC_ARM64_REG_Q22,
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Arm64.UC_ARM64_REG_Q23,
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Arm64.UC_ARM64_REG_Q24,
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Arm64.UC_ARM64_REG_Q25,
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Arm64.UC_ARM64_REG_Q26,
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Arm64.UC_ARM64_REG_Q27,
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Arm64.UC_ARM64_REG_Q28,
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Arm64.UC_ARM64_REG_Q29,
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Arm64.UC_ARM64_REG_Q30,
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Arm64.UC_ARM64_REG_Q31,
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};
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public ulong GetX(int index)
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{
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if ((uint)index > 30)
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{
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throw new ArgumentOutOfRangeException(nameof(index));
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}
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return GetRegister(XRegisters[index]);
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}
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public void SetX(int index, ulong value)
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{
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if ((uint)index > 30)
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{
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throw new ArgumentOutOfRangeException(nameof(index));
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}
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SetRegister(XRegisters[index], value);
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}
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public SimdValue GetQ(int index)
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{
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if ((uint)index > 31)
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{
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throw new ArgumentOutOfRangeException(nameof(index));
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}
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return GetVector(QRegisters[index]);
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}
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public void SetQ(int index, SimdValue value)
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{
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if ((uint)index > 31)
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{
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throw new ArgumentOutOfRangeException(nameof(index));
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}
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SetVector(QRegisters[index], value);
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}
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private ulong GetRegister(int register)
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{
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byte[] data = new byte[8];
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uc.RegRead(register, data);
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return BitConverter.ToUInt64(data, 0);
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}
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private void SetRegister(int register, ulong value)
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{
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byte[] data = BitConverter.GetBytes(value);
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uc.RegWrite(register, data);
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}
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private SimdValue GetVector(int register)
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{
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byte[] data = new byte[16];
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uc.RegRead(register, data);
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return new SimdValue(data);
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}
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private void SetVector(int register, SimdValue value)
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{
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byte[] data = value.ToArray();
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uc.RegWrite(register, data);
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}
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public byte[] MemoryRead(ulong address, ulong size)
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{
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byte[] value = new byte[size];
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uc.MemRead((long)address, value);
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return value;
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}
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public byte MemoryRead8 (ulong address) => MemoryRead(address, 1)[0];
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public ushort MemoryRead16(ulong address) => BitConverter.ToUInt16(MemoryRead(address, 2), 0);
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public uint MemoryRead32(ulong address) => BitConverter.ToUInt32(MemoryRead(address, 4), 0);
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public ulong MemoryRead64(ulong address) => BitConverter.ToUInt64(MemoryRead(address, 8), 0);
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public void MemoryWrite(ulong address, byte[] value)
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{
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uc.MemWrite((long)address, value);
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}
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public void MemoryWrite8 (ulong address, byte value) => MemoryWrite(address, new[]{ value });
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public void MemoryWrite16(ulong address, short value) => MemoryWrite(address, BitConverter.GetBytes(value));
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public void MemoryWrite16(ulong address, ushort value) => MemoryWrite(address, BitConverter.GetBytes(value));
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public void MemoryWrite32(ulong address, int value) => MemoryWrite(address, BitConverter.GetBytes(value));
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public void MemoryWrite32(ulong address, uint value) => MemoryWrite(address, BitConverter.GetBytes(value));
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public void MemoryWrite64(ulong address, long value) => MemoryWrite(address, BitConverter.GetBytes(value));
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public void MemoryWrite64(ulong address, ulong value) => MemoryWrite(address, BitConverter.GetBytes(value));
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public void MemoryMap(ulong address, ulong size, MemoryPermission permissions)
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{
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uc.MemMap((long)address, (long)size, (int)permissions);
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}
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public void MemoryUnmap(ulong address, ulong size)
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{
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uc.MemUnmap((long)address, (long)size);
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}
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public void MemoryProtect(ulong address, ulong size, MemoryPermission permissions)
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{
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uc.MemProtect((long)address, (long)size, (int)permissions);
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}
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}
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}
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