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TSR Berry 2023-04-08 01:22:00 +02:00 • committed by Mary
parent cd124bda58
commit cee7121058
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src/ARMeilleure/Instructions/InstEmitSimdCrypto.cs Normal file
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using ARMeilleure.Decoders;
using ARMeilleure.IntermediateRepresentation;
using ARMeilleure.Translation;
using static ARMeilleure.Instructions.InstEmitHelper;
namespace ARMeilleure.Instructions
{
static partial class InstEmit
{
public static void Aesd_V(ArmEmitterContext context)
{
OpCodeSimd op = (OpCodeSimd)context.CurrOp;
Operand d = GetVec(op.Rd);
Operand n = GetVec(op.Rn);
Operand res;
if (Optimizations.UseAesni)
{
res = context.AddIntrinsic(Intrinsic.X86Aesdeclast, context.AddIntrinsic(Intrinsic.X86Xorpd, d, n), context.VectorZero());
}
else
{
res = context.Call(typeof(SoftFallback).GetMethod(nameof(SoftFallback.Decrypt)), d, n);
}
context.Copy(d, res);
}
public static void Aese_V(ArmEmitterContext context)
{
OpCodeSimd op = (OpCodeSimd)context.CurrOp;
Operand d = GetVec(op.Rd);
Operand n = GetVec(op.Rn);
Operand res;
if (Optimizations.UseAesni)
{
res = context.AddIntrinsic(Intrinsic.X86Aesenclast, context.AddIntrinsic(Intrinsic.X86Xorpd, d, n), context.VectorZero());
}
else
{
res = context.Call(typeof(SoftFallback).GetMethod(nameof(SoftFallback.Encrypt)), d, n);
}
context.Copy(d, res);
}
public static void Aesimc_V(ArmEmitterContext context)
{
OpCodeSimd op = (OpCodeSimd)context.CurrOp;
Operand n = GetVec(op.Rn);
Operand res;
if (Optimizations.UseAesni)
{
res = context.AddIntrinsic(Intrinsic.X86Aesimc, n);
}
else
{
res = context.Call(typeof(SoftFallback).GetMethod(nameof(SoftFallback.InverseMixColumns)), n);
}
context.Copy(GetVec(op.Rd), res);
}
public static void Aesmc_V(ArmEmitterContext context)
{
OpCodeSimd op = (OpCodeSimd)context.CurrOp;
Operand n = GetVec(op.Rn);
Operand res;
if (Optimizations.UseAesni)
{
Operand roundKey = context.VectorZero();
// Inverse Shift Rows, Inverse Sub Bytes, xor 0 so nothing happens
res = context.AddIntrinsic(Intrinsic.X86Aesdeclast, n, roundKey);
// Shift Rows, Sub Bytes, Mix Columns (!), xor 0 so nothing happens
res = context.AddIntrinsic(Intrinsic.X86Aesenc, res, roundKey);
}
else
{
res = context.Call(typeof(SoftFallback).GetMethod(nameof(SoftFallback.MixColumns)), n);
}
context.Copy(GetVec(op.Rd), res);
}
}
}