From 4012f93f31bc3df95d2ff5ddac4a780df8bc6825 Mon Sep 17 00:00:00 2001
From: pasky1382 <pasky1382@gmail.com>
Date: Tue, 21 Jan 2014 17:28:54 +0000
Subject: [PATCH] Added bit.clear() bit.set() to lua, and LuaULong()

---
 BizHawk.Client.Common/lua/EmuLuaLibrary.Bit.cs | 15 +++++++++++++--
 BizHawk.Client.Common/lua/LuaLibraryBase.cs    |  7 ++++++-
 2 files changed, 19 insertions(+), 3 deletions(-)

diff --git a/BizHawk.Client.Common/lua/EmuLuaLibrary.Bit.cs b/BizHawk.Client.Common/lua/EmuLuaLibrary.Bit.cs
index 049db9a121..dd2b082973 100644
--- a/BizHawk.Client.Common/lua/EmuLuaLibrary.Bit.cs
+++ b/BizHawk.Client.Common/lua/EmuLuaLibrary.Bit.cs
@@ -19,6 +19,8 @@ namespace BizHawk.Client.Common
 					"ror",
 					"rshift",
 					"check",
+					"set",
+					"clear",
 					"byteswap_16",
 					"byteswap_32",
 					"byteswap_64",
@@ -70,8 +72,17 @@ namespace BizHawk.Client.Common
 
 		public static bool bit_check(object num, object pos)
 		{
-			var value = Convert.ToInt64(LuaLong(num));
-			return (value & (1 << (int)(LuaInt(pos)))) != 0;
+			return (LuaLong(num) & (1 << (LuaInt(pos)))) != 0;
+		}
+		 
+		public static uint bit_set(object num, object pos)
+		{
+			return (uint) (LuaInt(num) |  1 << LuaInt(pos));
+		}
+
+		public static uint bit_clear(object num, object pos)
+		{
+			return (uint) (LuaInt(num) & ~(1 << LuaInt(pos)));
 		}
 
 		public static uint bit_byteswap_16(object short_)
diff --git a/BizHawk.Client.Common/lua/LuaLibraryBase.cs b/BizHawk.Client.Common/lua/LuaLibraryBase.cs
index e9f26f3d91..c5ccace66b 100644
--- a/BizHawk.Client.Common/lua/LuaLibraryBase.cs
+++ b/BizHawk.Client.Common/lua/LuaLibraryBase.cs
@@ -38,7 +38,12 @@ namespace BizHawk.Client.Common
 		protected static long LuaLong(object luaArg)
 		{
 			return (long)(double)luaArg;
-		}	
+		}
+
+		protected static ulong LuaULong(object luaArg)
+		{
+			return (ulong)(double)luaArg;
+		}
 
 		/// <summary>
 		/// LuaInterface requires the exact match of parameter count, except optional parameters.