314 lines
11 KiB
C#
314 lines
11 KiB
C#
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using System;
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using System.Diagnostics.Contracts;
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using System.Runtime.Intrinsics;
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using System.Runtime.Intrinsics.X86;
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namespace Ryujinx.Tests.Unicorn
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{
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public class UnicornAArch64
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{
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internal readonly IntPtr uc;
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public IndexedProperty<int, ulong> X
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{
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get
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{
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return new IndexedProperty<int, ulong>(
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(int i) => GetX(i),
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(int i, ulong value) => SetX(i, value));
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}
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}
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public IndexedProperty<int, Vector128<float>> Q
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{
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get
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{
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return new IndexedProperty<int, Vector128<float>>(
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(int i) => GetQ(i),
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(int i, Vector128<float> value) => SetQ(i, value));
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}
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}
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public ulong LR
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{
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get { return GetRegister(Native.ArmRegister.LR); }
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set { SetRegister(Native.ArmRegister.LR, value); }
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}
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public ulong SP
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{
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get { return GetRegister(Native.ArmRegister.SP); }
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set { SetRegister(Native.ArmRegister.SP, value); }
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}
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public ulong PC
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{
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get { return GetRegister(Native.ArmRegister.PC); }
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set { SetRegister(Native.ArmRegister.PC, value); }
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}
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public uint Pstate
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{
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get { return (uint)GetRegister(Native.ArmRegister.PSTATE); }
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set { SetRegister(Native.ArmRegister.PSTATE, (uint)value); }
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}
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public int Fpcr
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{
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get { return (int)GetRegister(Native.ArmRegister.FPCR); }
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set { SetRegister(Native.ArmRegister.FPCR, (uint)value); }
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}
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public int Fpsr
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{
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get { return (int)GetRegister(Native.ArmRegister.FPSR); }
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set { SetRegister(Native.ArmRegister.FPSR, (uint)value); }
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}
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public bool OverflowFlag
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{
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get { return (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 { return (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 { return (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 { return (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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Native.Interface.Checked(Native.Interface.uc_open((uint)Native.UnicornArch.UC_ARCH_ARM64, (uint)Native.UnicornMode.UC_MODE_LITTLE_ENDIAN, out uc));
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SetRegister(Native.ArmRegister.CPACR_EL1, 0x00300000);
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}
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~UnicornAArch64()
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{
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Native.Interface.Checked(Native.Interface.uc_close(uc));
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}
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public void RunForCount(ulong count)
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{
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Native.Interface.Checked(Native.Interface.uc_emu_start(uc, this.PC, 0xFFFFFFFFFFFFFFFFu, 0, 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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internal static Native.ArmRegister[] X_registers = new Native.ArmRegister[31]
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{
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Native.ArmRegister.X0,
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Native.ArmRegister.X1,
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Native.ArmRegister.X2,
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Native.ArmRegister.X3,
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Native.ArmRegister.X4,
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Native.ArmRegister.X5,
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Native.ArmRegister.X6,
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Native.ArmRegister.X7,
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Native.ArmRegister.X8,
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Native.ArmRegister.X9,
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Native.ArmRegister.X10,
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Native.ArmRegister.X11,
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Native.ArmRegister.X12,
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Native.ArmRegister.X13,
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Native.ArmRegister.X14,
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Native.ArmRegister.X15,
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Native.ArmRegister.X16,
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Native.ArmRegister.X17,
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Native.ArmRegister.X18,
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Native.ArmRegister.X19,
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Native.ArmRegister.X20,
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Native.ArmRegister.X21,
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Native.ArmRegister.X22,
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Native.ArmRegister.X23,
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Native.ArmRegister.X24,
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Native.ArmRegister.X25,
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Native.ArmRegister.X26,
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Native.ArmRegister.X27,
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Native.ArmRegister.X28,
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Native.ArmRegister.X29,
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Native.ArmRegister.X30,
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};
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internal static Native.ArmRegister[] Q_registers = new Native.ArmRegister[32]
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{
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Native.ArmRegister.Q0,
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Native.ArmRegister.Q1,
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Native.ArmRegister.Q2,
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Native.ArmRegister.Q3,
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Native.ArmRegister.Q4,
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Native.ArmRegister.Q5,
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Native.ArmRegister.Q6,
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Native.ArmRegister.Q7,
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Native.ArmRegister.Q8,
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Native.ArmRegister.Q9,
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Native.ArmRegister.Q10,
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Native.ArmRegister.Q11,
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Native.ArmRegister.Q12,
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Native.ArmRegister.Q13,
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Native.ArmRegister.Q14,
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Native.ArmRegister.Q15,
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Native.ArmRegister.Q16,
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Native.ArmRegister.Q17,
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Native.ArmRegister.Q18,
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Native.ArmRegister.Q19,
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Native.ArmRegister.Q20,
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Native.ArmRegister.Q21,
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Native.ArmRegister.Q22,
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Native.ArmRegister.Q23,
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Native.ArmRegister.Q24,
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Native.ArmRegister.Q25,
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Native.ArmRegister.Q26,
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Native.ArmRegister.Q27,
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Native.ArmRegister.Q28,
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Native.ArmRegister.Q29,
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Native.ArmRegister.Q30,
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Native.ArmRegister.Q31,
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};
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internal ulong GetRegister(Native.ArmRegister register)
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{
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byte[] value_bytes = new byte[8];
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Native.Interface.Checked(Native.Interface.uc_reg_read(uc, (int)register, value_bytes));
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return (ulong)BitConverter.ToInt64(value_bytes, 0);
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}
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internal void SetRegister(Native.ArmRegister register, ulong value)
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{
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byte[] value_bytes = BitConverter.GetBytes(value);
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Native.Interface.Checked(Native.Interface.uc_reg_write(uc, (int)register, value_bytes));
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}
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internal Vector128<float> GetVector(Native.ArmRegister register)
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{
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byte[] value_bytes = new byte[16];
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Native.Interface.Checked(Native.Interface.uc_reg_read(uc, (int)register, value_bytes));
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unsafe
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{
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fixed (byte* p = &value_bytes[0])
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{
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return Sse.LoadVector128((float*)p);
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}
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}
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}
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internal void SetVector(Native.ArmRegister register, Vector128<float> value)
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{
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byte[] value_bytes = new byte[16];
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unsafe
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{
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fixed (byte* p = &value_bytes[0])
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{
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Sse.Store((float*)p, value);
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}
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}
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Native.Interface.Checked(Native.Interface.uc_reg_write(uc, (int)register, value_bytes));
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}
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public ulong GetX(int index)
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{
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Contract.Requires(index <= 30, "invalid register");
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return GetRegister(X_registers[index]);
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}
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public void SetX(int index, ulong value)
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{
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Contract.Requires(index <= 30, "invalid register");
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SetRegister(X_registers[index], value);
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}
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public Vector128<float> GetQ(int index)
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{
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Contract.Requires(index <= 31, "invalid vector");
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return GetVector(Q_registers[index]);
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}
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public void SetQ(int index, Vector128<float> value)
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{
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Contract.Requires(index <= 31, "invalid vector");
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SetVector(Q_registers[index], value);
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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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Native.Interface.Checked(Native.Interface.uc_mem_read(uc, address, value, size));
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return value;
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}
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public byte MemoryRead8 (ulong address) { return MemoryRead(address, 1)[0]; }
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public UInt16 MemoryRead16(ulong address) { return (UInt16)BitConverter.ToInt16(MemoryRead(address, 2), 0); }
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public UInt32 MemoryRead32(ulong address) { return (UInt32)BitConverter.ToInt32(MemoryRead(address, 4), 0); }
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public UInt64 MemoryRead64(ulong address) { return (UInt64)BitConverter.ToInt64(MemoryRead(address, 8), 0); }
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public void MemoryWrite(ulong address, byte[] value)
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{
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Native.Interface.Checked(Native.Interface.uc_mem_write(uc, address, value, (ulong)value.Length));
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}
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public void MemoryWrite8 (ulong address, byte value) { MemoryWrite(address, new byte[]{value}); }
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public void MemoryWrite16(ulong address, Int16 value) { MemoryWrite(address, BitConverter.GetBytes(value)); }
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public void MemoryWrite16(ulong address, UInt16 value) { MemoryWrite(address, BitConverter.GetBytes(value)); }
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public void MemoryWrite32(ulong address, Int32 value) { MemoryWrite(address, BitConverter.GetBytes(value)); }
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public void MemoryWrite32(ulong address, UInt32 value) { MemoryWrite(address, BitConverter.GetBytes(value)); }
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public void MemoryWrite64(ulong address, Int64 value) { MemoryWrite(address, BitConverter.GetBytes(value)); }
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public void MemoryWrite64(ulong address, UInt64 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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Native.Interface.Checked(Native.Interface.uc_mem_map(uc, address, size, (uint)permissions));
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}
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public void MemoryUnmap(ulong address, ulong size)
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{
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Native.Interface.Checked(Native.Interface.uc_mem_unmap(uc, address, 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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Native.Interface.Checked(Native.Interface.uc_mem_protect(uc, address, size, (uint)permissions));
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}
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public void DumpMemoryInformation()
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{
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Native.Interface.Checked(Native.Interface.uc_mem_regions(uc, out IntPtr regions_raw, out uint length));
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Native.Interface.MarshalArrayOf<Native.UnicornMemoryRegion>(regions_raw, (int)length, out var regions);
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foreach (var region in regions)
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{
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Console.WriteLine("region: begin {0:X16} end {1:X16} perms {2:X8}", region.begin, region.end, region.perms);
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}
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}
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public static bool IsAvailable()
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{
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try
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{
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Native.Interface.uc_version(out uint major, out uint minor);
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return true;
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}
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catch (DllNotFoundException)
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{
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return false;
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}
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}
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}
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}
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