From f96332b0913a8a365db73a1af3443c0e225a23d8 Mon Sep 17 00:00:00 2001
From: Ian C <ianc@noddybox.co.uk>
Date: Thu, 29 Dec 2011 00:17:13 +0000
Subject: Development check-in.

---
 Noddybox.Emulation.EightBit/Binary.cs | 63 +++++++++++++++++++++++++++++++++++
 1 file changed, 63 insertions(+)
 create mode 100644 Noddybox.Emulation.EightBit/Binary.cs

(limited to 'Noddybox.Emulation.EightBit/Binary.cs')

diff --git a/Noddybox.Emulation.EightBit/Binary.cs b/Noddybox.Emulation.EightBit/Binary.cs
new file mode 100644
index 0000000..0b1928b
--- /dev/null
+++ b/Noddybox.Emulation.EightBit/Binary.cs
@@ -0,0 +1,63 @@
+using System;
+using System.Net;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Documents;
+using System.Windows.Ink;
+using System.Windows.Input;
+using System.Windows.Media;
+using System.Windows.Media.Animation;
+using System.Windows.Shapes;
+
+namespace Noddybox.Emulation.EightBit
+{
+    /// <summary>
+    /// Provides helpers for shifting smaller values around without casts all over the shop.
+    /// </summary>
+    public static class Binary
+    {
+        /// <summary>
+        /// Shift 8-bits to the left.
+        /// </summary>
+        /// <param name="b">The byte.</param>
+        /// <param name="shift">How many bits to shift.</param>
+        /// <returns>The shifted value.</returns>
+        public static byte ShiftLeft(byte b, int shift)
+        {
+            return (byte)((b << shift) & 0xff);
+        }
+
+        /// <summary>
+        /// Shift 8-bits to the right.
+        /// </summary>
+        /// <param name="b">The byte.</param>
+        /// <param name="shift">How many bits to shift.</param>
+        /// <returns>The shifted value.</returns>
+        public static byte ShiftRight(byte b, int shift)
+        {
+            return (byte)((b >> shift) & 0xff);
+        }
+
+        /// <summary>
+        /// Shift 16-bits to the left.
+        /// </summary>
+        /// <param name="w">The word.</param>
+        /// <param name="shift">How many bits to shift.</param>
+        /// <returns>The shifted value.</returns>
+        public static ushort ShiftLeft(ushort w, int shift)
+        {
+            return (ushort)((w << shift) & 0xffff);
+        }
+
+        /// <summary>
+        /// Shift 16-bits to the right.
+        /// </summary>
+        /// <param name="w">The word.</param>
+        /// <param name="shift">How many bits to shift.</param>
+        /// <returns>The shifted value.</returns>
+        public static ushort ShiftRight(ushort w, int shift)
+        {
+            return (ushort)((w >> shift) & 0xffff);
+        }
+    }
+}
-- 
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