From 99a1f25c150b500fbe5225414d0ba9e1fb7f1d96 Mon Sep 17 00:00:00 2001
From: hugova <hugova@kth.se>
Date: Fri, 28 Mar 2025 16:51:31 +0100
Subject: [PATCH] Disable CHAREN so cpu can get petscii

---
 wip-hugo/STARTUP.s | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/wip-hugo/STARTUP.s b/wip-hugo/STARTUP.s
index 4b0bd11..72de22a 100755
--- a/wip-hugo/STARTUP.s
+++ b/wip-hugo/STARTUP.s
@@ -86,3 +86,8 @@ jsr memset
 LDA #$36 ; 00110110
 STA $0001
 CLI ;Disable interups (not all)
+;https://www.c64-wiki.com/wiki/Bank_Switching
+;Disable IO, CHAREN =0
+LDA #%11111011
+AND $0001
+STA $0001