From 145aba1f6683532e21a0e7d0723e118100d649fc Mon Sep 17 00:00:00 2001
From: Joshua Bell <inexorabletash@gmail.com>
Date: Sun, 3 Jul 2022 15:29:04 -0700
Subject: [PATCH] Buhbye.system: Clear keyboard strobe on launch

This is particularly useful on MAME where you're likely to have just
pressed Return to dismiss a warning.
---
 selectors/buhbye.system.s | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/selectors/buhbye.system.s b/selectors/buhbye.system.s
index 3cb33a8..b4abbcc 100644
--- a/selectors/buhbye.system.s
+++ b/selectors/buhbye.system.s
@@ -131,6 +131,8 @@ loop:   lda     (src_ptr)       ; *src_ptr = *dst_ptr
         cld                     ; ProDOS protocol for QUIT routine
         lda     ROMIN2          ; Page in ROM for reads, writes ignored
 
+        bit     KBDSTRB         ; Clear keyboard strobe
+
         lda     #$A0
         jsr     SLOT3           ; Activate 80-Column Firmware