mirror of
https://github.com/Ryujinx/Ryujinx.git
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194 lines
6 KiB
C#
194 lines
6 KiB
C#
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.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 BfeR(EmitterContext context)
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{
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InstBfeR op = context.GetOp<InstBfeR>();
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var srcA = GetSrcReg(context, op.SrcA);
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var srcB = GetSrcReg(context, op.SrcB);
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EmitBfe(context, srcA, srcB, op.Dest, op.Brev, op.Signed);
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}
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public static void BfeI(EmitterContext context)
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{
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InstBfeI op = context.GetOp<InstBfeI>();
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var srcA = GetSrcReg(context, op.SrcA);
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var srcB = GetSrcImm(context, Imm20ToSInt(op.Imm20));
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EmitBfe(context, srcA, srcB, op.Dest, op.Brev, op.Signed);
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}
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public static void BfeC(EmitterContext context)
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{
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InstBfeC op = context.GetOp<InstBfeC>();
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var srcA = GetSrcReg(context, op.SrcA);
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var srcB = GetSrcCbuf(context, op.CbufSlot, op.CbufOffset);
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EmitBfe(context, srcA, srcB, op.Dest, op.Brev, op.Signed);
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}
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public static void BfiR(EmitterContext context)
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{
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InstBfiR op = context.GetOp<InstBfiR>();
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var srcA = GetSrcReg(context, op.SrcA);
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var srcB = GetSrcReg(context, op.SrcB);
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var srcC = GetSrcReg(context, op.SrcC);
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EmitBfi(context, srcA, srcB, srcC, op.Dest);
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}
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public static void BfiI(EmitterContext context)
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{
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InstBfiI op = context.GetOp<InstBfiI>();
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var srcA = GetSrcReg(context, op.SrcA);
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var srcB = GetSrcImm(context, Imm20ToSInt(op.Imm20));
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var srcC = GetSrcReg(context, op.SrcC);
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EmitBfi(context, srcA, srcB, srcC, op.Dest);
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}
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public static void BfiC(EmitterContext context)
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{
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InstBfiC op = context.GetOp<InstBfiC>();
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var srcA = GetSrcReg(context, op.SrcA);
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var srcB = GetSrcCbuf(context, op.CbufSlot, op.CbufOffset);
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var srcC = GetSrcReg(context, op.SrcC);
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EmitBfi(context, srcA, srcB, srcC, op.Dest);
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}
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public static void BfiRc(EmitterContext context)
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{
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InstBfiRc op = context.GetOp<InstBfiRc>();
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var srcA = GetSrcReg(context, op.SrcA);
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var srcB = GetSrcReg(context, op.SrcC);
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var srcC = GetSrcCbuf(context, op.CbufSlot, op.CbufOffset);
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EmitBfi(context, srcA, srcB, srcC, op.Dest);
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}
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public static void FloR(EmitterContext context)
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{
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InstFloR op = context.GetOp<InstFloR>();
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EmitFlo(context, GetSrcReg(context, op.SrcB), op.Dest, op.NegB, op.Sh, op.Signed);
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}
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public static void FloI(EmitterContext context)
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{
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InstFloI op = context.GetOp<InstFloI>();
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EmitFlo(context, GetSrcImm(context, Imm20ToSInt(op.Imm20)), op.Dest, op.NegB, op.Sh, op.Signed);
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}
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public static void FloC(EmitterContext context)
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{
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InstFloC op = context.GetOp<InstFloC>();
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EmitFlo(context, GetSrcCbuf(context, op.CbufSlot, op.CbufOffset), op.Dest, op.NegB, op.Sh, op.Signed);
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}
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public static void PopcR(EmitterContext context)
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{
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InstPopcR op = context.GetOp<InstPopcR>();
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EmitPopc(context, GetSrcReg(context, op.SrcB), op.Dest, op.NegB);
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}
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public static void PopcI(EmitterContext context)
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{
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InstPopcI op = context.GetOp<InstPopcI>();
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EmitPopc(context, GetSrcImm(context, Imm20ToSInt(op.Imm20)), op.Dest, op.NegB);
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}
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public static void PopcC(EmitterContext context)
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{
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InstPopcC op = context.GetOp<InstPopcC>();
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EmitPopc(context, GetSrcCbuf(context, op.CbufSlot, op.CbufOffset), op.Dest, op.NegB);
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}
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private static void EmitBfe(
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EmitterContext context,
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Operand srcA,
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Operand srcB,
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int rd,
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bool bitReverse,
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bool isSigned)
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{
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if (bitReverse)
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{
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srcA = context.BitfieldReverse(srcA);
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}
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Operand position = context.BitwiseAnd(srcB, Const(0xff));
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Operand size = context.BitfieldExtractU32(srcB, Const(8), Const(8));
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Operand res = isSigned
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? context.BitfieldExtractS32(srcA, position, size)
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: context.BitfieldExtractU32(srcA, position, size);
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context.Copy(GetDest(rd), res);
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// TODO: CC, X, corner cases.
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}
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private static void EmitBfi(EmitterContext context, Operand srcA, Operand srcB, Operand srcC, int rd)
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{
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Operand position = context.BitwiseAnd(srcB, Const(0xff));
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Operand size = context.BitfieldExtractU32(srcB, Const(8), Const(8));
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Operand res = context.BitfieldInsert(srcC, srcA, position, size);
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context.Copy(GetDest(rd), res);
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}
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private static void EmitFlo(EmitterContext context, Operand src, int rd, bool invert, bool sh, bool isSigned)
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{
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Operand srcB = context.BitwiseNot(src, invert);
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Operand res;
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if (sh)
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{
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res = context.FindLSB(context.BitfieldReverse(srcB));
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}
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else
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{
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res = isSigned
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? context.FindMSBS32(srcB)
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: context.FindMSBU32(srcB);
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}
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context.Copy(GetDest(rd), res);
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}
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private static void EmitPopc(EmitterContext context, Operand src, int rd, bool invert)
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{
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Operand srcB = context.BitwiseNot(src, invert);
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Operand res = context.BitCount(srcB);
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context.Copy(GetDest(rd), res);
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}
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}
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} |