From 80858801300a2f48ad250721a79ebc7b1b0aba92 Mon Sep 17 00:00:00 2001
From: Nebuleon Fumika
Date: Thu, 20 Dec 2012 18:10:38 -0500
Subject: Remove the SNES Open Bus behaviour by default. Also simplify
 translation again.

SNES Open Bus is a quirk of the memory subsystem that allow reads of invalid addresses to return the last byte read from memory. However, it is seldom needed by a game, and it costs 1 to 3 MIPS instructions per SNES instruction to emulate.

If you need SNES Open Bus, you can remove -DNO_OPEN_BUS from the Makefile.
---
 source/globals.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'source/globals.cpp')

diff --git a/source/globals.cpp b/source/globals.cpp
index 0103f7e..f00a621 100644
--- a/source/globals.cpp
+++ b/source/globals.cpp
@@ -157,7 +157,9 @@ uint32 Work32 = 0;
 signed char Int8 = 0;
 short Int16 = 0;
 long Int32 = 0;
-unsigned char OpenBus = 0;
+#ifndef NO_OPEN_BUS
+uint8 OpenBus = 0;
+#endif
 
 
 END_EXTERN_C
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