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using ChocolArm64.Memory;
using ChocolArm64.State;
using System;
using System.Reflection;
using System.Reflection.Emit;
namespace ChocolArm64.Translation
{
delegate long ArmSubroutine(CpuThreadState state, MemoryManager memory);
class TranslatedSub
{
public ArmSubroutine Delegate { get; private set; }
public static int StateArgIdx { get; private set; }
public static int MemoryArgIdx { get; private set; }
public static Type[] FixedArgTypes { get; private set; }
public DynamicMethod Method { get; private set; }
public TranslationTier Tier { get; private set; }
public TranslatedSub(DynamicMethod method, TranslationTier tier)
{
Method = method ?? throw new ArgumentNullException(nameof(method));;
Tier = tier;
}
static TranslatedSub()
{
MethodInfo mthdInfo = typeof(ArmSubroutine).GetMethod("Invoke");
ParameterInfo[] Params = mthdInfo.GetParameters();
FixedArgTypes = new Type[Params.Length];
for (int index = 0; index < Params.Length; index++)
{
Type argType = Params[index].ParameterType;
FixedArgTypes[index] = argType;
if (argType == typeof(CpuThreadState))
{
StateArgIdx = index;
}
else if (argType == typeof(MemoryManager))
{
MemoryArgIdx = index;
}
}
}
public void PrepareMethod()
{
Delegate = (ArmSubroutine)Method.CreateDelegate(typeof(ArmSubroutine));
}
public long Execute(CpuThreadState threadState, MemoryManager memory)
{
return Delegate(threadState, memory);
}
}
}
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