mbc bugfix

2023-02-12 19:15:05 +11:00 · 2023-02-12 19:15:05 +11:00 · 0fde806f62
parent 5989a1a49f
commit 0fde806f62
1 changed files with 2 additions and 4 deletions
--- a/src/processor/memory/rom/mbcs.rs
+++ b/src/processor/memory/rom/mbcs.rs
@ -143,12 +143,10 @@ impl Mbc for Mbc1 {
            }
            0x6000..0x8000 => {
                // mode select
-                self.bank_mode = if data == 0x1 {
+                self.bank_mode = if (data & 0x1) == 0x1 {
                    BankingMode::Advanced
-                } else if data == 0x0 {
-                    BankingMode::Simple
                } else {
-                    self.bank_mode
+                    BankingMode::Simple
                };
            }
            _ => {}