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Improve CPU initial translation speeds (#50)

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* Add background translation to the CPU

* Do not use a separate thread for translation, implement 2 tiers translation

* Remove unnecessary usings

* Lower MinCallCountForReJit

* Remove unused variable
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gdkchan 2018-03-04 14:09:59 -03:00 • committed by GitHub
parent ee9df32e3e
commit 3edb66f389
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10 changed files with 319 additions and 107 deletions
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104
ChocolArm64/ATranslatedSub.cs
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@ -2,6 +2,7 @@ using ChocolArm64.Memory;
using ChocolArm64.State;
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Reflection;
using System.Reflection.Emit;
@ -13,35 +14,47 @@ namespace ChocolArm64
private AA64Subroutine ExecDelegate;
private bool HasDelegate;
public static Type[] FixedArgTypes { 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 HashSet<long> SubCalls { get; private set; }
public ReadOnlyCollection<ARegister> Params { get; private set; }
public List<ARegister> Params { get; private set; }
private HashSet<long> Callees;
public bool NeedsReJit { get; private set; }
private ATranslatedSubType Type;
public ATranslatedSub()
private int CallCount;
private bool NeedsReJit;
private int MinCallCountForReJit = 250;
public ATranslatedSub(DynamicMethod Method, List<ARegister> Params, HashSet<long> Callees)
{
SubCalls = new HashSet<long>();
}
if (Method == null)
{
throw new ArgumentNullException(nameof(Method));
}
public ATranslatedSub(DynamicMethod Method, List<ARegister> Params) : this()
{
if (Params == null)
{
throw new ArgumentNullException(nameof(Params));
}
this.Method = Method;
this.Params = Params;
if (Callees == null)
{
throw new ArgumentNullException(nameof(Callees));
}
this.Method = Method;
this.Params = Params.AsReadOnly();
this.Callees = Callees;
PrepareDelegate();
}
static ATranslatedSub()
@ -69,36 +82,53 @@ namespace ChocolArm64
}
}
public long Execute(AThreadState ThreadState, AMemory Memory)
private void PrepareDelegate()
{
if (!HasDelegate)
string Name = $"{Method.Name}_Dispatch";
DynamicMethod Mthd = new DynamicMethod(Name, typeof(long), FixedArgTypes);
ILGenerator Generator = Mthd.GetILGenerator();
Generator.EmitLdargSeq(FixedArgTypes.Length);
foreach (ARegister Reg in Params)
{
string Name = $"{Method.Name}_Dispatch";
Generator.EmitLdarg(StateArgIdx);
DynamicMethod Mthd = new DynamicMethod(Name, typeof(long), FixedArgTypes);
ILGenerator Generator = Mthd.GetILGenerator();
Generator.EmitLdargSeq(FixedArgTypes.Length);
foreach (ARegister Reg in Params)
{
Generator.EmitLdarg(StateArgIdx);
Generator.Emit(OpCodes.Ldfld, Reg.GetField());
}
Generator.Emit(OpCodes.Call, Method);
Generator.Emit(OpCodes.Ret);
ExecDelegate = (AA64Subroutine)Mthd.CreateDelegate(typeof(AA64Subroutine));
HasDelegate = true;
Generator.Emit(OpCodes.Ldfld, Reg.GetField());
}
Generator.Emit(OpCodes.Call, Method);
Generator.Emit(OpCodes.Ret);
ExecDelegate = (AA64Subroutine)Mthd.CreateDelegate(typeof(AA64Subroutine));
}
public bool ShouldReJit()
{
if (Type == ATranslatedSubType.SubTier0)
{
if (CallCount < MinCallCountForReJit)
{
CallCount++;
}
return CallCount == MinCallCountForReJit;
}
return Type == ATranslatedSubType.SubTier1 && NeedsReJit;
}
public long Execute(AThreadState ThreadState, AMemory Memory)
{
return ExecDelegate(ThreadState, Memory);
}
public void MarkForReJit() => NeedsReJit = true;
public void SetType(ATranslatedSubType Type) => this.Type = Type;
public bool HasCallee(long Position) => Callees.Contains(Position);
public void MarkForReJit() => NeedsReJit = true;
}
}