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Update AInstEmitAlu.cs

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LDj3SNuD 2018-10-13 22:40:08 +02:00 • committed by GitHub
parent 38b021410c
commit e91bf429c4
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1 changed files with 12 additions and 2 deletions
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14
ChocolArm64/Instruction/AInstEmitAlu.cs
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@ -4,6 +4,7 @@ using ChocolArm64.Translation;
using System;
using System.Reflection;
using System.Reflection.Emit;
using System.Runtime.Intrinsics.X86;
using static ChocolArm64.Instruction.AInstEmitAluHelper;
@ -117,9 +118,18 @@ namespace ChocolArm64.Instruction
Context.EmitLdintzr(Op.Rn);
Context.EmitLdc_I4(Op.RegisterSize == ARegisterSize.Int32 ? 32 : 64);
if (Lzcnt.IsSupported)
{
Type TValue = Op.RegisterSize == ARegisterSize.Int32 ? typeof(uint) : typeof(ulong);
ASoftFallback.EmitCall(Context, nameof(ASoftFallback.CountLeadingZeros));
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);
}