Delete BufferElement.cs

EMU7800/Core/BufferElement.cs

@@ -1,71 +0,0 @@
-namespace EMU7800.Core
-{
-	/*
-	 * why this sucks:
-	 * A read costs 3 shifts and an or.  A write costs 2 shifts.  Additional shifts are
-	 * needed elsewhere to figure out which item in a BufferElement[] to access.  Because
-	 * the encapsulation is for a BufferElement and not a whole array of them, code elsewhere
-	 * is gunked up with 'BufferElement.SIZE' shifts.  If the 32 bit "alias" was actually used,
-	 * there might be some purpose to this code:  but it's only used for a ZeroMemory()
-	 * replacement.  Every use of BufferElement in the code is a BufferElement[] used as a gunked
-	 * up replacement for a byte[].
-	 * 
-	 * A small speed increase was observed hacking this out; but my motivation was more about cleaness
-	 * and stomping out bad ideas.
-	 */
-
-	/*
-    /// <summary>
-    /// Frames are composed of <see cref="BufferElement"/>s,
-    /// that group bytes into machine words for efficient array processing.
-    /// Bytes are packed in logical little endian order.
-    /// </summary>
-    public struct BufferElement
-    {
-        /// <summary>
-        /// The number of bytes contained within a <see cref="BufferElement"/>.
-        /// </summary>
-        public const int SIZE  = 4;       // 2^SHIFT
-
-        /// <summary>
-        /// The mask value applied against a byte array index to access the individual bytes within a <see cref="BufferElement"/>.
-        /// </summary>
-        public const int MASK  = 3;       // SIZE - 1
-
-        /// <summary>
-        /// The left shift value to convert a byte array index to a <see cref="BufferElement"/> array index.
-        /// </summary>
-        public const int SHIFT = 2;
-
-        uint _data;
-
-        /// <summary>
-        /// A convenience accessor for reading/writing individual bytes within this <see cref="BufferElement"/>.
-        /// </summary>
-        /// <param name="offset"></param>
-        public byte this[int offset]
-        {
-            get
-            {
-                var i = (offset & MASK) << 3;
-                return (byte)(_data >> i);
-            }
-            set
-            {
-                var i  = (offset & MASK) << 3;
-                var d  = (uint)value << i;
-                var di = (uint)0xff  << i;
-                _data = _data & ~di | d;
-            }
-        }
-
-        /// <summary>
-        /// Zeros out all bytes of this <see cref="BufferElement"/>.
-        /// </summary>
-        public void ClearAll()
-        {
-            _data = 0;
-        }
-    }
-	*/
-}