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CPU: Implement VRINTX.F32 | VRINTX.F64 (#1776)

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* Start implementation

* Draft

* Updated opcode.

Needs verification.

* Clean up code.

* Update implementation and tests.

* Update implemenation + tests

* Get RM from FPSCR + Do not use emit/addintrinsic

* Remove "fast" path, as recommended by gdk.

* Variable DELETED.

* Update ARMeilleure/Decoders/OpCodeTable.cs

Co-authored-by: LDj3SNuD <35856442+LDj3SNuD@users.noreply.github.com>

* Update ARMeilleure/Instructions/InstEmitSimdCvt32.cs

Co-authored-by: LDj3SNuD <35856442+LDj3SNuD@users.noreply.github.com>

* Update ARMeilleure/Instructions/InstEmitSimdCvt32.cs

Co-authored-by: LDj3SNuD <35856442+LDj3SNuD@users.noreply.github.com>

* Update ARMeilleure/Instructions/InstEmitSimdCvt32.cs

Co-authored-by: LDj3SNuD <35856442+LDj3SNuD@users.noreply.github.com>

* Move method

* stringing things together :)

Co-authored-by: LDj3SNuD <35856442+LDj3SNuD@users.noreply.github.com>
This commit is contained in:
sharmander 2020-12-16 18:27:15 -05:00 committed by GitHub
parent 61634dd415
commit e901b7850c
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1
ARMeilleure/Decoders/OpCodeTable.cs
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@ -912,6 +912,7 @@ namespace ARMeilleure.Decoders
SetA32("111100111x11xx00xxxx000<<xx0xxxx", InstName.Vrev, InstEmit32.Vrev, OpCode32SimdRev.Create);
SetA32("111111101x1110xxxxxx101x01x0xxxx", InstName.Vrint, InstEmit32.Vrint_RM, OpCode32SimdS.Create);
SetA32("<<<<11101x110110xxxx101x11x0xxxx", InstName.Vrint, InstEmit32.Vrint_Z, OpCode32SimdS.Create);
SetA32("<<<<11101x110111xxxx101x01x0xxxx", InstName.Vrintx, InstEmit32.Vrintx_S, OpCode32SimdS.Create);
SetA32("1111001x1x>>>xxxxxxx0010>xx1xxxx", InstName.Vrshr, InstEmit32.Vrshr, OpCode32SimdShImm.Create);
SetA32("111100111x111011xxxx010x1xx0xxxx", InstName.Vrsqrte, InstEmit32.Vrsqrte, OpCode32SimdSqrte.Create);
SetA32("111100100x10xxxxxxxx1111xxx1xxxx", InstName.Vrsqrts, InstEmit32.Vrsqrts, OpCode32SimdReg.Create);

15
ARMeilleure/Instructions/InstEmitSimdCvt32.cs
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@ -342,6 +342,21 @@ namespace ARMeilleure.Instructions
}
}
// VRINTX (floating-point).
public static void Vrintx_S(ArmEmitterContext context)
{
OpCode32SimdS op = (OpCode32SimdS)context.CurrOp;
bool doubleSize = (op.Size & 1) == 1;
string methodName = doubleSize ? nameof(SoftFallback.Round) : nameof(SoftFallback.RoundF);
EmitScalarUnaryOpF32(context, (op1) =>
{
MethodInfo info = typeof(SoftFallback).GetMethod(methodName);
return context.Call(info, op1);
});
}
private static Operand EmitFPConvert(ArmEmitterContext context, Operand value, OperandType type, bool signed)
{
Debug.Assert(value.Type == OperandType.I32 || value.Type == OperandType.I64);

1
ARMeilleure/Instructions/InstName.cs
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@ -608,6 +608,7 @@ namespace ARMeilleure.Instructions
Vqshrn,
Vrev,
Vrint,
Vrintx,
Vrshr,
Vsel,
Vshl,

37
Ryujinx.Tests/Cpu/CpuTestSimdCvt32.cs
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@ -2,6 +2,7 @@
using ARMeilleure.State;
using NUnit.Framework;
using System;
using System.Collections.Generic;
namespace Ryujinx.Tests.Cpu
@ -215,6 +216,42 @@ namespace Ryujinx.Tests.Cpu
CompareAgainstUnicorn();
}
[Test, Pairwise, Description("VRINTX.F<size> <Sd>, <Sm>")]
public void Vrintx_S([Values(0u, 1u)] uint rd,
[Values(0u, 1u)] uint rm,
[Values(2u, 3u)] uint size,
[ValueSource(nameof(_1D_F_))] ulong s0,
[ValueSource(nameof(_1D_F_))] ulong s1,
[ValueSource(nameof(_1D_F_))] ulong s2,
[Values(RMode.Rn, RMode.Rm, RMode.Rp)] RMode rMode)
{
uint opcode = 0xEB70A40;
V128 v0, v1, v2;
if (size == 2)
{
opcode |= ((rm & 0x1e) >> 1) | ((rm & 0x1) << 5);
opcode |= ((rd & 0x1e) >> 11) | ((rm & 0x1) << 22);
v0 = MakeVectorE0E1((uint)BitConverter.SingleToInt32Bits(s0), (uint)BitConverter.SingleToInt32Bits(s0));
v1 = MakeVectorE0E1((uint)BitConverter.SingleToInt32Bits(s1), (uint)BitConverter.SingleToInt32Bits(s0));
v2 = MakeVectorE0E1((uint)BitConverter.SingleToInt32Bits(s2), (uint)BitConverter.SingleToInt32Bits(s1));
}
else
{
opcode |= ((rm & 0xf) << 0) | ((rd & 0x10) << 1);
opcode |= ((rd & 0xf) << 12) | ((rd & 0x10) << 18);
v0 = MakeVectorE0E1((uint)BitConverter.DoubleToInt64Bits(s0), (uint)BitConverter.DoubleToInt64Bits(s0));
v1 = MakeVectorE0E1((uint)BitConverter.DoubleToInt64Bits(s1), (uint)BitConverter.DoubleToInt64Bits(s0));
v2 = MakeVectorE0E1((uint)BitConverter.DoubleToInt64Bits(s2), (uint)BitConverter.DoubleToInt64Bits(s1));
}
opcode |= ((size & 3) << 8);
int fpscr = (int)rMode << (int)Fpcr.RMode;
SingleOpcode(opcode, v0: v0, v1: v1, v2: v2, fpscr: fpscr);
CompareAgainstUnicorn();
}
#endif
}
}