From 31c7fd560f4046901733144141eb1bf0eddbd649 Mon Sep 17 00:00:00 2001
From: David McMackins II <contact@mcmackins.org>
Date: Fri, 2 Dec 2016 10:46:47 -0600
Subject: Fix bug where switching ROM banks on MBC5 on DMG would fail

---
 stdgb.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/stdgb.c b/stdgb.c
index e2347bb..7b37f3f 100644
--- a/stdgb.c
+++ b/stdgb.c
@@ -24,7 +24,11 @@ static uint8_t * const BTN_STATE = (void *) 0xDFA1;
 void
 gb_mbc5_select_rombank (uint16_t bank)
 {
-  *((uint16_t *) 0x2FFF) = bank;
+  uint8_t upper = (bank & 0xFF00) >> 8;
+  uint8_t lower = bank & 0x00FF;
+
+  *((uint8_t *) 0x3000) = upper;
+  *((uint8_t *) 0x2000) = lower;
 }
 
 static void
-- 
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