Initial work

1 files changed, 0 insertions, 149 deletions

diff --git a/Ryujinx.Graphics/Shader/Instructions/Lop3Expression.cs b/Ryujinx.Graphics/Shader/Instructions/Lop3Expression.cs
deleted file mode 100644
index 67e24957..00000000
--- a/Ryujinx.Graphics/Shader/Instructions/Lop3Expression.cs
+++ /dev/null
@@ -1,149 +0,0 @@
-using Ryujinx.Graphics.Shader.IntermediateRepresentation;
-using Ryujinx.Graphics.Shader.Translation;
-
-using static Ryujinx.Graphics.Shader.IntermediateRepresentation.OperandHelper;
-
-namespace Ryujinx.Graphics.Shader.Instructions
-{
-    static class Lop3Expression
-    {
-        public static Operand GetFromTruthTable(
-            EmitterContext context,
-            Operand        srcA,
-            Operand        srcB,
-            Operand        srcC,
-            int            imm)
-        {
-            Operand expr = null;
-
-            // Handle some simple cases, or cases where
-            // the KMap would yield poor results (like XORs).
-            if (imm == 0x96 || imm == 0x69)
-            {
-                // XOR (0x96) and XNOR (0x69).
-                if (imm == 0x69)
-                {
-                    srcA = context.BitwiseNot(srcA);
-                }
-
-                expr = context.BitwiseExclusiveOr(srcA, srcB);
-                expr = context.BitwiseExclusiveOr(expr, srcC);
-
-                return expr;
-            }
-            else if (imm == 0)
-            {
-                // Always false.
-                return Const(IrConsts.False);
-            }
-            else if (imm == 0xff)
-            {
-                // Always true.
-                return Const(IrConsts.True);
-            }
-
-            int map;
-
-            // Encode into gray code.
-            map  = ((imm >> 0) & 1) << 0;
-            map |= ((imm >> 1) & 1) << 4;
-            map |= ((imm >> 2) & 1) << 1;
-            map |= ((imm >> 3) & 1) << 5;
-            map |= ((imm >> 4) & 1) << 3;
-            map |= ((imm >> 5) & 1) << 7;
-            map |= ((imm >> 6) & 1) << 2;
-            map |= ((imm >> 7) & 1) << 6;
-
-            // Solve KMap, get sum of products.
-            int visited = 0;
-
-            for (int index = 0; index < 8 && visited != 0xff; index++)
-            {
-                if ((map & (1 << index)) == 0)
-                {
-                    continue;
-                }
-
-                int mask = 0;
-
-                for (int mSize = 4; mSize != 0; mSize >>= 1)
-                {
-                    mask = RotateLeft4((1 << mSize) - 1, index & 3) << (index & 4);
-
-                    if ((map & mask) == mask)
-                    {
-                        break;
-                    }
-                }
-
-                // The mask should wrap, if we are on the high row, shift to low etc.
-                int mask2 = (index & 4) != 0 ? mask >> 4 : mask << 4;
-
-                if ((map & mask2) == mask2)
-                {
-                    mask |= mask2;
-                }
-
-                if ((mask & visited) == mask)
-                {
-                    continue;
-                }
-
-                bool notA = (mask & 0x33) != 0;
-                bool notB = (mask & 0x99) != 0;
-                bool notC = (mask & 0x0f) != 0;
-
-                bool aChanges = (mask & 0xcc) != 0 && notA;
-                bool bChanges = (mask & 0x66) != 0 && notB;
-                bool cChanges = (mask & 0xf0) != 0 && notC;
-
-                Operand localExpr = null;
-
-                void And(Operand source)
-                {
-                    if (localExpr != null)
-                    {
-                        localExpr = context.BitwiseAnd(localExpr, source);
-                    }
-                    else
-                    {
-                        localExpr = source;
-                    }
-                }
-
-                if (!aChanges)
-                {
-                    And(context.BitwiseNot(srcA, notA));
-                }
-
-                if (!bChanges)
-                {
-                    And(context.BitwiseNot(srcB, notB));
-                }
-
-                if (!cChanges)
-                {
-                    And(context.BitwiseNot(srcC, notC));
-                }
-
-                if (expr != null)
-                {
-                    expr = context.BitwiseOr(expr, localExpr);
-                }
-                else
-                {
-                    expr = localExpr;
-                }
-
-                visited |= mask;
-            }
-
-            return expr;
-        }
-
-        private static int RotateLeft4(int value, int shift)
-        {
-            return ((value << shift) | (value >> (4 - shift))) & 0xf;
-        }
-    }
-}
\ No newline at end of file