mirror of
https://github.com/Ryujinx/Ryujinx.git
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104 lines
2.8 KiB
C#
104 lines
2.8 KiB
C#
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using ChocolArm64.Memory;
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using ChocolArm64.State;
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using System;
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using System.Collections.Generic;
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using System.Reflection;
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using System.Reflection.Emit;
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namespace ChocolArm64
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{
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class ATranslatedSub
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{
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private delegate long AA64Subroutine(ARegisters Register, AMemory Memory);
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private AA64Subroutine ExecDelegate;
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private bool HasDelegate;
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public static Type[] FixedArgTypes { get; private set; }
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public static int RegistersArgIdx { get; private set; }
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public static int MemoryArgIdx { get; private set; }
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public DynamicMethod Method { get; private set; }
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public HashSet<long> SubCalls { get; private set; }
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public List<ARegister> Params { get; private set; }
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public bool NeedsReJit { get; private set; }
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public ATranslatedSub()
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{
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SubCalls = new HashSet<long>();
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}
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public ATranslatedSub(DynamicMethod Method, List<ARegister> Params) : this()
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{
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if (Params == null)
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{
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throw new ArgumentNullException(nameof(Params));
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}
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this.Method = Method;
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this.Params = Params;
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}
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static ATranslatedSub()
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{
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MethodInfo MthdInfo = typeof(AA64Subroutine).GetMethod("Invoke");
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ParameterInfo[] Params = MthdInfo.GetParameters();
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FixedArgTypes = new Type[Params.Length];
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for (int Index = 0; Index < Params.Length; Index++)
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{
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Type ParamType = Params[Index].ParameterType;
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FixedArgTypes[Index] = ParamType;
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if (ParamType == typeof(ARegisters))
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{
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RegistersArgIdx = Index;
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}
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else if (ParamType == typeof(AMemory))
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{
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MemoryArgIdx = Index;
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}
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}
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}
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public long Execute(ARegisters Registers, AMemory Memory)
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{
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if (!HasDelegate)
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{
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string Name = $"{Method.Name}_Dispatch";
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DynamicMethod Mthd = new DynamicMethod(Name, typeof(long), FixedArgTypes);
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ILGenerator Generator = Mthd.GetILGenerator();
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Generator.EmitLdargSeq(FixedArgTypes.Length);
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foreach (ARegister Reg in Params)
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{
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Generator.EmitLdarg(RegistersArgIdx);
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Generator.Emit(OpCodes.Ldfld, Reg.GetField());
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}
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Generator.Emit(OpCodes.Call, Method);
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Generator.Emit(OpCodes.Ret);
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ExecDelegate = (AA64Subroutine)Mthd.CreateDelegate(typeof(AA64Subroutine));
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HasDelegate = true;
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}
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return ExecDelegate(Registers, Memory);
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}
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public void MarkForReJit() => NeedsReJit = true;
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}
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}
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