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using ChocolArm64.Decoder;
using ChocolArm64.State;
using ChocolArm64.Translation;
using System;
using System.Reflection.Emit;
using System.Runtime.Intrinsics.X86;
namespace ChocolArm64.Instruction
{
static partial class AInstEmit
{
public static void Crc32b(AILEmitterCtx Context)
{
EmitCrc32(Context, nameof(ASoftFallback.Crc32b));
}
public static void Crc32h(AILEmitterCtx Context)
{
EmitCrc32(Context, nameof(ASoftFallback.Crc32h));
}
public static void Crc32w(AILEmitterCtx Context)
{
EmitCrc32(Context, nameof(ASoftFallback.Crc32w));
}
public static void Crc32x(AILEmitterCtx Context)
{
EmitCrc32(Context, nameof(ASoftFallback.Crc32x));
}
public static void Crc32cb(AILEmitterCtx Context)
{
if (AOptimizations.UseSse42)
{
EmitSse42Crc32(Context, typeof(uint), typeof(byte));
}
else
{
EmitCrc32(Context, nameof(ASoftFallback.Crc32cb));
}
}
public static void Crc32ch(AILEmitterCtx Context)
{
if (AOptimizations.UseSse42)
{
EmitSse42Crc32(Context, typeof(uint), typeof(ushort));
}
else
{
EmitCrc32(Context, nameof(ASoftFallback.Crc32ch));
}
}
public static void Crc32cw(AILEmitterCtx Context)
{
if (AOptimizations.UseSse42)
{
EmitSse42Crc32(Context, typeof(uint), typeof(uint));
}
else
{
EmitCrc32(Context, nameof(ASoftFallback.Crc32cw));
}
}
public static void Crc32cx(AILEmitterCtx Context)
{
if (AOptimizations.UseSse42)
{
EmitSse42Crc32(Context, typeof(ulong), typeof(ulong));
}
else
{
EmitCrc32(Context, nameof(ASoftFallback.Crc32cx));
}
}
private static void EmitSse42Crc32(AILEmitterCtx Context, Type TCrc, Type TData)
{
AOpCodeAluRs Op = (AOpCodeAluRs)Context.CurrOp;
Context.EmitLdintzr(Op.Rn);
Context.EmitLdintzr(Op.Rm);
Context.EmitCall(typeof(Sse42).GetMethod(nameof(Sse42.Crc32), new Type[] { TCrc, TData }));
Context.EmitStintzr(Op.Rd);
}
private static void EmitCrc32(AILEmitterCtx Context, string Name)
{
AOpCodeAluRs Op = (AOpCodeAluRs)Context.CurrOp;
Context.EmitLdintzr(Op.Rn);
if (Op.RegisterSize != ARegisterSize.Int32)
{
Context.Emit(OpCodes.Conv_U4);
}
Context.EmitLdintzr(Op.Rm);
ASoftFallback.EmitCall(Context, Name);
if (Op.RegisterSize != ARegisterSize.Int32)
{
Context.Emit(OpCodes.Conv_U8);
}
Context.EmitStintzr(Op.Rd);
}
}
}
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