public static void Rev64(AILEmitterCtx Context)
{
AOpCodeAlu Op = (AOpCodeAlu)Context.CurrOp;
Context.EmitLdintzr(Op.Rn);
ASoftFallback.EmitCall(Context, nameof(ASoftFallback.ReverseBytes64));
Context.EmitStintzr(Op.Rd);
}
public static void Clz(AILEmitterCtx Context)
{
AOpCodeAlu Op = (AOpCodeAlu)Context.CurrOp;
Context.EmitLdintzr(Op.Rn);
Context.EmitLdc_I4(Op.RegisterSize == ARegisterSize.Int32 ? 32 : 64);
ASoftFallback.EmitCall(Context, nameof(ASoftFallback.CountLeadingZeros));
Context.EmitStintzr(Op.Rd);
}
private static void EmitFallback32_64(AILEmitterCtx Context, string Name32, string Name64)
{
AOpCodeAlu Op = (AOpCodeAlu)Context.CurrOp;
Context.EmitLdintzr(Op.Rn);
if (Op.RegisterSize == ARegisterSize.Int32)
{
ASoftFallback.EmitCall(Context, Name32);
}
else
{
ASoftFallback.EmitCall(Context, Name64);
}
Context.EmitStintzr(Op.Rd);
}
public static void Cls(AILEmitterCtx Context)
{
AOpCodeAlu Op = (AOpCodeAlu)Context.CurrOp;
Context.EmitLdintzr(Op.Rn);
if (Op.RegisterSize == ARegisterSize.Int32)
{
ASoftFallback.EmitCall(Context, nameof(ASoftFallback.CountLeadingSigns32));
}
else
{
ASoftFallback.EmitCall(Context, nameof(ASoftFallback.CountLeadingSigns64));
}
Context.EmitStintzr(Op.Rd);
}
public static void Clz(AILEmitterCtx Context)
{
AOpCodeAlu Op = (AOpCodeAlu)Context.CurrOp;
Context.EmitLdintzr(Op.Rn);
if (Lzcnt.IsSupported)
{
Type TValue = Op.RegisterSize == ARegisterSize.Int32 ? typeof(uint) : typeof(ulong);
Context.EmitCall(typeof(Lzcnt).GetMethod(nameof(Lzcnt.LeadingZeroCount), new Type[] { TValue }));
}
else
{
Context.EmitLdc_I4(Op.RegisterSize == ARegisterSize.Int32 ? 32 : 64);
ASoftFallback.EmitCall(Context, nameof(ASoftFallback.CountLeadingZeros));
}
Context.EmitStintzr(Op.Rd);
}
