116 lines
3.0 KiB
C#
116 lines
3.0 KiB
C#
using ChocolArm64.Decoders;
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using ChocolArm64.State;
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using ChocolArm64.Translation;
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using System;
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using System.Reflection.Emit;
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using System.Runtime.Intrinsics.X86;
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namespace ChocolArm64.Instructions
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{
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static partial class InstEmit
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{
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public static void Crc32b(ILEmitterCtx context)
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{
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EmitCrc32(context, nameof(SoftFallback.Crc32B));
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}
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public static void Crc32h(ILEmitterCtx context)
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{
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EmitCrc32(context, nameof(SoftFallback.Crc32H));
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}
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public static void Crc32w(ILEmitterCtx context)
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{
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EmitCrc32(context, nameof(SoftFallback.Crc32W));
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}
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public static void Crc32x(ILEmitterCtx context)
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{
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EmitCrc32(context, nameof(SoftFallback.Crc32X));
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}
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public static void Crc32cb(ILEmitterCtx context)
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{
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if (Optimizations.UseSse42)
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{
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EmitSse42Crc32(context, typeof(uint), typeof(byte));
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}
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else
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{
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EmitCrc32(context, nameof(SoftFallback.Crc32Cb));
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}
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}
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public static void Crc32ch(ILEmitterCtx context)
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{
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if (Optimizations.UseSse42)
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{
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EmitSse42Crc32(context, typeof(uint), typeof(ushort));
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}
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else
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{
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EmitCrc32(context, nameof(SoftFallback.Crc32Ch));
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}
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}
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public static void Crc32cw(ILEmitterCtx context)
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{
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if (Optimizations.UseSse42)
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{
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EmitSse42Crc32(context, typeof(uint), typeof(uint));
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}
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else
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{
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EmitCrc32(context, nameof(SoftFallback.Crc32Cw));
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}
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}
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public static void Crc32cx(ILEmitterCtx context)
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{
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if (Optimizations.UseSse42)
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{
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EmitSse42Crc32(context, typeof(ulong), typeof(ulong));
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}
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else
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{
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EmitCrc32(context, nameof(SoftFallback.Crc32Cx));
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}
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}
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private static void EmitSse42Crc32(ILEmitterCtx context, Type tCrc, Type tData)
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{
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OpCodeAluRs64 op = (OpCodeAluRs64)context.CurrOp;
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context.EmitLdintzr(op.Rn);
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context.EmitLdintzr(op.Rm);
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context.EmitCall(typeof(Sse42).GetMethod(nameof(Sse42.Crc32), new Type[] { tCrc, tData }));
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context.EmitStintzr(op.Rd);
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}
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private static void EmitCrc32(ILEmitterCtx context, string name)
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{
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OpCodeAluRs64 op = (OpCodeAluRs64)context.CurrOp;
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context.EmitLdintzr(op.Rn);
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if (op.RegisterSize != RegisterSize.Int32)
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{
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context.Emit(OpCodes.Conv_U4);
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}
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context.EmitLdintzr(op.Rm);
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SoftFallback.EmitCall(context, name);
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if (op.RegisterSize != RegisterSize.Int32)
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{
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context.Emit(OpCodes.Conv_U8);
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}
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context.EmitStintzr(op.Rd);
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}
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}
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}
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