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ryujinx-final/Ryujinx/Cpu/Translation/AILConv.cs
2018-02-04 20:08:20 -03:00

113 lines
No EOL
3.8 KiB
C#

using ChocolArm64.State;
using System;
using System.Reflection;
using System.Reflection.Emit;
namespace ChocolArm64.Translation
{
static class AILConv
{
public static void EmitConv(AILEmitter Context, Type SrcType, Type TgtType)
{
if (SrcType == TgtType)
{
//If both types are equal we don't need to cast anything.
return;
}
if (SrcType.IsPrimitive)
{
if (TgtType == typeof(byte))
{
Context.Generator.Emit(OpCodes.Conv_U1);
}
else if (TgtType == typeof(ushort))
{
Context.Generator.Emit(OpCodes.Conv_U2);
}
else if (TgtType == typeof(uint))
{
Context.Generator.Emit(OpCodes.Conv_U4);
}
else if (TgtType == typeof(ulong))
{
Context.Generator.Emit(OpCodes.Conv_U8);
}
else if (TgtType == typeof(float))
{
Context.Generator.Emit(OpCodes.Conv_R4);
}
else if (TgtType == typeof(double))
{
Context.Generator.Emit(OpCodes.Conv_R8);
}
else if (TgtType == typeof(AVec))
{
EmitMakeVec(Context, SrcType);
}
else
{
throw new ArgumentException(nameof(TgtType));
}
}
else if (SrcType == typeof(AVec))
{
if (TgtType == typeof(float))
{
EmitScalarLdfld(Context, nameof(AVec.S0));
}
else if (TgtType == typeof(double))
{
EmitScalarLdfld(Context, nameof(AVec.D0));
}
else if (TgtType == typeof(byte))
{
EmitScalarLdfld(Context, nameof(AVec.B0));
}
else if (TgtType == typeof(ushort))
{
EmitScalarLdfld(Context, nameof(AVec.H0));
}
else if (TgtType == typeof(uint))
{
EmitScalarLdfld(Context, nameof(AVec.W0));
}
else if (TgtType == typeof(ulong))
{
EmitScalarLdfld(Context, nameof(AVec.X0));
}
else
{
throw new ArgumentException(nameof(TgtType));
}
}
else
{
throw new ArgumentException(nameof(SrcType));
}
}
private static void EmitScalarLdfld(AILEmitter Context,string FldName)
{
Context.Generator.Emit(OpCodes.Ldfld, typeof(AVec).GetField(FldName));
}
private static void EmitMakeVec(AILEmitter Context, Type SrcType)
{
string MthdName = nameof(MakeScalar);
Type[] MthdTypes = new Type[] { SrcType };
MethodInfo MthdInfo = typeof(AILConv).GetMethod(MthdName, MthdTypes);
Context.Generator.Emit(OpCodes.Call, MthdInfo);
}
public static AVec MakeScalar(byte Value) => new AVec { B0 = Value };
public static AVec MakeScalar(ushort Value) => new AVec { H0 = Value };
public static AVec MakeScalar(uint Value) => new AVec { W0 = Value };
public static AVec MakeScalar(float Value) => new AVec { S0 = Value };
public static AVec MakeScalar(ulong Value) => new AVec { X0 = Value };
public static AVec MakeScalar(double Value) => new AVec { D0 = Value };
}
}