From bb2b17f92d1550080a7059bdcef7a71328477c07 Mon Sep 17 00:00:00 2001
From: beirich <beirich@4bbf4f03-6f44-549e-7e59-35d4b0962838>
Date: Sat, 19 Feb 2011 05:04:52 +0000
Subject: [PATCH] [SMS] Add System Bus MemoryDomain

---
 BizHawk.Emulation/Consoles/Sega/SMS/SMS.cs | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/BizHawk.Emulation/Consoles/Sega/SMS/SMS.cs b/BizHawk.Emulation/Consoles/Sega/SMS/SMS.cs
index 967867f1ad..12c52225ec 100644
--- a/BizHawk.Emulation/Consoles/Sega/SMS/SMS.cs
+++ b/BizHawk.Emulation/Consoles/Sega/SMS/SMS.cs
@@ -341,10 +341,14 @@ namespace BizHawk.Emulation.Consoles.Sega
             var SaveRamDomain = new MemoryDomain("Save RAM", SaveRAM.Length, Endian.Little, 
                 addr => SaveRAM[addr%SaveRAM.Length], 
                 (addr, value) => { SaveRAM[addr%SaveRAM.Length]=value; SaveRamModified=true;});
+            var SystemBusDomain = new MemoryDomain("System Bus", 0x10000, Endian.Little,
+                addr => Cpu.ReadMemory((ushort)addr),
+                (addr, value) => Cpu.WriteMemory((ushort)addr, value));
 
             domains.Add(MainMemoryDomain);
             domains.Add(VRamDomain);
             domains.Add(SaveRamDomain);
+            domains.Add(SystemBusDomain);
             memoryDomains = domains.AsReadOnly();
         }