Ryujinx/ChocolArm64/Translation/ILGeneratorEx.cs

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using System;
namespace ChocolArm64
{
using System.Reflection.Emit;
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static class ILGeneratorEx
{
public static void EmitLdc_I4(this ILGenerator Generator, int Value)
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{
switch (Value)
{
case 0: Generator.Emit(OpCodes.Ldc_I4_0); break;
case 1: Generator.Emit(OpCodes.Ldc_I4_1); break;
case 2: Generator.Emit(OpCodes.Ldc_I4_2); break;
case 3: Generator.Emit(OpCodes.Ldc_I4_3); break;
case 4: Generator.Emit(OpCodes.Ldc_I4_4); break;
case 5: Generator.Emit(OpCodes.Ldc_I4_5); break;
case 6: Generator.Emit(OpCodes.Ldc_I4_6); break;
case 7: Generator.Emit(OpCodes.Ldc_I4_7); break;
case 8: Generator.Emit(OpCodes.Ldc_I4_8); break;
case -1: Generator.Emit(OpCodes.Ldc_I4_M1); break;
default: Generator.Emit(OpCodes.Ldc_I4, Value); break;
}
}
public static void EmitLdarg(this ILGenerator Generator, int Index)
{
switch (Index)
{
case 0: Generator.Emit(OpCodes.Ldarg_0); break;
case 1: Generator.Emit(OpCodes.Ldarg_1); break;
case 2: Generator.Emit(OpCodes.Ldarg_2); break;
case 3: Generator.Emit(OpCodes.Ldarg_3); break;
default:
if ((uint)Index <= byte.MaxValue)
{
Generator.Emit(OpCodes.Ldarg_S, (byte)Index);
}
else if ((uint)Index < ushort.MaxValue)
{
Generator.Emit(OpCodes.Ldarg, (short)Index);
}
else
{
throw new ArgumentOutOfRangeException(nameof(Index));
}
break;
}
}
public static void EmitStarg(this ILGenerator Generator, int Index)
{
if ((uint)Index <= byte.MaxValue)
{
Generator.Emit(OpCodes.Starg_S, (byte)Index);
}
else if ((uint)Index < ushort.MaxValue)
{
Generator.Emit(OpCodes.Starg, (short)Index);
}
else
{
throw new ArgumentOutOfRangeException(nameof(Index));
}
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}
public static void EmitLdloc(this ILGenerator Generator, int Index)
{
switch (Index)
{
case 0: Generator.Emit(OpCodes.Ldloc_0); break;
case 1: Generator.Emit(OpCodes.Ldloc_1); break;
case 2: Generator.Emit(OpCodes.Ldloc_2); break;
case 3: Generator.Emit(OpCodes.Ldloc_3); break;
default:
if ((uint)Index <= byte.MaxValue)
{
Generator.Emit(OpCodes.Ldloc_S, (byte)Index);
}
else if ((uint)Index < ushort.MaxValue)
{
Generator.Emit(OpCodes.Ldloc, (short)Index);
}
else
{
throw new ArgumentOutOfRangeException(nameof(Index));
}
break;
}
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}
public static void EmitStloc(this ILGenerator Generator, int Index)
{
switch (Index)
{
case 0: Generator.Emit(OpCodes.Stloc_0); break;
case 1: Generator.Emit(OpCodes.Stloc_1); break;
case 2: Generator.Emit(OpCodes.Stloc_2); break;
case 3: Generator.Emit(OpCodes.Stloc_3); break;
default:
if ((uint)Index <= byte.MaxValue)
{
Generator.Emit(OpCodes.Stloc_S, (byte)Index);
}
else if ((uint)Index < ushort.MaxValue)
{
Generator.Emit(OpCodes.Stloc, (short)Index);
}
else
{
throw new ArgumentOutOfRangeException(nameof(Index));
}
break;
}
}
public static void EmitLdargSeq(this ILGenerator Generator, int Count)
{
for (int Index = 0; Index < Count; Index++)
{
Generator.EmitLdarg(Index);
}
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}
}
}