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ryujinx-fork/ChocolArm64/Translation/TranslatedSub.cs
gdkchan a694420d11
Implement speculative translation on the CPU (#515)
* Implement speculative translation on the cpu, and change the way how branches to unknown or untranslated addresses works

* Port t0opt changes and other cleanups

* Change namespace from translation related classes to ChocolArm64.Translation, other minor tweaks

* Fix typo

* Translate higher quality code for indirect jumps aswell, and on some cases that were missed when lower quality (tier 0) code was available

* Remove debug print

* Remove direct argument passing optimization, and enable tail calls for BR instructions

* Call delegates directly with Callvirt rather than calling Execute, do not emit calls for tier 0 code

* Remove unused property

* Rename argument on ArmSubroutine delegate
2019-02-04 18:26:05 -03:00

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1.8 KiB
C#

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);
}
}
}