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ryujinx-final/Ryujinx.Graphics.Shader/Instructions/InstEmitConditionCode.cs
gdkchan 6adf15e479
Implement CSET and CSETP shader instructions (#4318)
* Implement CSET and CSETP shader instructions

* Shader cache version bump

* Fix CC.HI
2023-01-21 12:18:05 -03:00

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3.8 KiB
C#

using Ryujinx.Graphics.Shader.Decoders;
using Ryujinx.Graphics.Shader.IntermediateRepresentation;
using Ryujinx.Graphics.Shader.Translation;
using static Ryujinx.Graphics.Shader.Instructions.InstEmitAluHelper;
using static Ryujinx.Graphics.Shader.Instructions.InstEmitHelper;
using static Ryujinx.Graphics.Shader.IntermediateRepresentation.OperandHelper;
namespace Ryujinx.Graphics.Shader.Instructions
{
static partial class InstEmit
{
public static void Cset(EmitterContext context)
{
InstCset op = context.GetOp<InstCset>();
Operand res = GetCondition(context, op.Ccc);
Operand srcPred = GetPredicate(context, op.SrcPred, op.SrcPredInv);
res = GetPredLogicalOp(context, op.Bop, res, srcPred);
Operand dest = GetDest(op.Dest);
if (op.BVal)
{
context.Copy(dest, context.ConditionalSelect(res, ConstF(1), Const(0)));
}
else
{
context.Copy(dest, res);
}
// TODO: CC.
}
public static void Csetp(EmitterContext context)
{
InstCsetp op = context.GetOp<InstCsetp>();
Operand p0Res = GetCondition(context, op.Ccc);
Operand p1Res = context.BitwiseNot(p0Res);
Operand srcPred = GetPredicate(context, op.SrcPred, op.SrcPredInv);
p0Res = GetPredLogicalOp(context, op.Bop, p0Res, srcPred);
p1Res = GetPredLogicalOp(context, op.Bop, p1Res, srcPred);
context.Copy(Register(op.DestPred, RegisterType.Predicate), p0Res);
context.Copy(Register(op.DestPredInv, RegisterType.Predicate), p1Res);
// TODO: CC.
}
private static Operand GetCondition(EmitterContext context, Ccc cond, int defaultCond = IrConsts.True)
{
return cond switch
{
Ccc.F => Const(IrConsts.False),
Ccc.Lt => context.BitwiseExclusiveOr(context.BitwiseAnd(GetNF(), context.BitwiseNot(GetZF())), GetVF()),
Ccc.Eq => context.BitwiseAnd(context.BitwiseNot(GetNF()), GetZF()),
Ccc.Le => context.BitwiseExclusiveOr(GetNF(), context.BitwiseOr(GetZF(), GetVF())),
Ccc.Gt => context.BitwiseNot(context.BitwiseOr(context.BitwiseExclusiveOr(GetNF(), GetVF()), GetZF())),
Ccc.Ne => context.BitwiseNot(GetZF()),
Ccc.Ge => context.BitwiseNot(context.BitwiseExclusiveOr(GetNF(), GetVF())),
Ccc.Num => context.BitwiseNot(context.BitwiseAnd(GetNF(), GetZF())),
Ccc.Nan => context.BitwiseAnd(GetNF(), GetZF()),
Ccc.Ltu => context.BitwiseExclusiveOr(GetNF(), GetVF()),
Ccc.Equ => GetZF(),
Ccc.Leu => context.BitwiseOr(context.BitwiseExclusiveOr(GetNF(), GetVF()), GetZF()),
Ccc.Gtu => context.BitwiseExclusiveOr(context.BitwiseNot(GetNF()), context.BitwiseOr(GetVF(), GetZF())),
Ccc.Neu => context.BitwiseOr(GetNF(), context.BitwiseNot(GetZF())),
Ccc.Geu => context.BitwiseExclusiveOr(context.BitwiseOr(context.BitwiseNot(GetNF()), GetZF()), GetVF()),
Ccc.T => Const(IrConsts.True),
Ccc.Off => context.BitwiseNot(GetVF()),
Ccc.Lo => context.BitwiseNot(GetCF()),
Ccc.Sff => context.BitwiseNot(GetNF()),
Ccc.Ls => context.BitwiseOr(GetZF(), context.BitwiseNot(GetCF())),
Ccc.Hi => context.BitwiseAnd(GetCF(), context.BitwiseNot(GetZF())),
Ccc.Sft => GetNF(),
Ccc.Hs => GetCF(),
Ccc.Oft => GetVF(),
Ccc.Rle => context.BitwiseOr(GetNF(), GetZF()),
Ccc.Rgt => context.BitwiseNot(context.BitwiseOr(GetNF(), GetZF())),
_ => Const(defaultCond)
};
}
}
}