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