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