From 6e01ca180841462889c48a79eba53fb30b396e6b Mon Sep 17 00:00:00 2001
From: gochaism <gochaism@4bbf4f03-6f44-549e-7e59-35d4b0962838>
Date: Thu, 14 Aug 2014 01:49:28 +0000
Subject: [PATCH] Lua: Add bit.arshift for arithmetic right-shift.

---
 BizHawk.Client.Common/lua/EmuLuaLibrary.Bit.cs | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/BizHawk.Client.Common/lua/EmuLuaLibrary.Bit.cs b/BizHawk.Client.Common/lua/EmuLuaLibrary.Bit.cs
index ec3e60ff51..ff232a79ab 100644
--- a/BizHawk.Client.Common/lua/EmuLuaLibrary.Bit.cs
+++ b/BizHawk.Client.Common/lua/EmuLuaLibrary.Bit.cs
@@ -88,7 +88,16 @@ namespace BizHawk.Client.Common
 			return (uint)(val >> amt);
 		}
 
-		[LuaMethodAttributes(
+        [LuaMethodAttributes(
+            "arshift",
+            "Arithmetic shift right of 'val' by 'amt' bits"
+        )]
+        public static int Arshift(int val, int amt)
+        {
+            return (int)(val >> amt);
+        }
+
+        [LuaMethodAttributes(
 			"check",
 			"Returns result of bit 'pos' being set in 'num'"
 		)]