From 2f8c606f79328212cdeae9a4f8f2f4ec157cec7d Mon Sep 17 00:00:00 2001
From: Alex Janka <alex@alexjanka.com>
Date: Wed, 8 Feb 2023 08:58:56 +1100
Subject: [PATCH] keep rom bank in limits

---
 src/processor/memory/rom/mbcs.rs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/processor/memory/rom/mbcs.rs b/src/processor/memory/rom/mbcs.rs
index 1b5bfea..326fdf2 100644
--- a/src/processor/memory/rom/mbcs.rs
+++ b/src/processor/memory/rom/mbcs.rs
@@ -105,6 +105,7 @@ impl MBC for MBC1 {
             }
             _ => {}
         }
+        self.rom_bank = (self.rom_bank as usize % self.num_banks) as u8;
         return;
     }
 }