public override int GetSourceSwizzle(int srcIndex)
        {
            D3D10OperandNumComponents componentSelection = GetOperandComponentSelection(srcIndex);

            if (componentSelection == D3D10OperandNumComponents.Operand1Component)
            {
                return((0 << 0) | (1 << 2) | (2 << 4) | (3 << 6));
            }
            else if (componentSelection == D3D10OperandNumComponents.Operand4Component)
            {
                D3D10ComponentSelectionMode selectionMode = GetOperandComponentSelectionMode(srcIndex);
                if (selectionMode == D3D10ComponentSelectionMode.Mask)
                {
                    return((0 << 0) | (1 << 2) | (2 << 4) | (3 << 6));
                }
                else if (selectionMode == D3D10ComponentSelectionMode.Swizzle)
                {
                    Span <uint> span = OperandTokens.GetSpan(srcIndex);
                    return((int)((span[0] >> 4) & 0xFF));
                }
                else if (selectionMode == D3D10ComponentSelectionMode.Select1)
                {
                    Span <uint> span      = OperandTokens.GetSpan(srcIndex);
                    int         component = (int)((span[0] >> 4) & 3);
                    return(component * 0x55);
                }
            }
            throw new NotImplementedException();
        }
        private int GetOperandComponentSwizzle(int index, int component)
        {
            D3D10OperandNumComponents componentSelection = GetOperandComponentSelection(index);

            if (componentSelection == D3D10OperandNumComponents.Operand4Component)
            {
                D3D10ComponentSelectionMode selectionMode = GetOperandComponentSelectionMode(index);
                if (selectionMode == D3D10ComponentSelectionMode.Mask)
                {
                    Span <uint> span = OperandTokens.GetSpan(index);
                    int         mask = (int)((span[0] >> 4) & 0xF);
                    throw new NotImplementedException();
                    //return component;
                }
                else if (selectionMode == D3D10ComponentSelectionMode.Swizzle)
                {
                    Span <uint> span    = OperandTokens.GetSpan(index);
                    int         swizzle = (int)((span[0] >> 2) & 3);
                    return((swizzle >> (2 * component)) & 3);
                }
                else if (selectionMode == D3D10ComponentSelectionMode.Select1)
                {
                    throw new NotImplementedException();
                }
            }
            throw new NotImplementedException();
        }
        public override int GetDestinationWriteMask()
        {
            int destinationParamIndex = GetDestinationParamIndex();

            D3D10OperandNumComponents componentSelection = GetOperandComponentSelection(destinationParamIndex);

            if (componentSelection == D3D10OperandNumComponents.Operand4Component)
            {
                D3D10ComponentSelectionMode selectionMode = GetOperandComponentSelectionMode(destinationParamIndex);
                if (selectionMode == D3D10ComponentSelectionMode.Mask)
                {
                    Span <uint> span = OperandTokens.GetSpan(destinationParamIndex);
                    int         mask = (int)((span[0] >> 4) & 0xF);
                    return(mask);
                }
                else if (selectionMode == D3D10ComponentSelectionMode.Swizzle)
                {
                    int mask      = 0;
                    int dimension = GetOperandIndexDimension(destinationParamIndex);
                    for (int i = 0; i < dimension; i++)
                    {
                        int swizzle = GetOperandComponentSwizzle(destinationParamIndex, i);
                        if (swizzle != i)
                        {
                            mask |= 1 << swizzle;
                        }
                    }
                    return(mask);
                }
                else if (selectionMode == D3D10ComponentSelectionMode.Select1)
                {
                    throw new NotImplementedException();
                }
            }
            throw new NotImplementedException();
        }