From 3862879a2d1351ade01a77f48e48f9fdc3cb0553 Mon Sep 17 00:00:00 2001
From: Vince Weaver <vincent.weaver@maine.edu>
Date: Mon, 3 May 2021 09:40:51 -0400
Subject: [PATCH] ootw: make title screen easier to navigate on Apple II

---
 games/ootw/qboot/title.s | 27 +++++++++++++++++----------
 1 file changed, 17 insertions(+), 10 deletions(-)

diff --git a/games/ootw/qboot/title.s b/games/ootw/qboot/title.s
index a7ba74cf..16946598 100644
--- a/games/ootw/qboot/title.s
+++ b/games/ootw/qboot/title.s
@@ -30,25 +30,32 @@ title_loop:
 
 	jsr	wait_for_keypress
 
-	; $15/$A = right/down
-	cmp	#$15+$80
+	; convert to uppercase, remove top bit
+	; 1110 0001 -> 0100 0001
+
+	and	#$5f
+
+	; $15/$A = right/down/S
+	cmp	#$15
 	beq	down_pressed
-	cmp	#$A+$80
+	cmp	#$A
+	beq	down_pressed
+	cmp	#'S'
 	beq	down_pressed
 
-	; 8/B = left/up
-	cmp	#$8+$80
+	; 8/B = left/up/W
+	cmp	#$8
 	beq	up_pressed
-	cmp	#$B+$80
+	cmp	#$B
+	beq	up_pressed
+	cmp	#'W'
 	beq	up_pressed
 
 	; Return = 13
-	cmp	#13+$80
+	cmp	#13
 	beq	all_done
 
-	cmp	#'H'+$80
-	beq	want_help
-	cmp	#'h'+$80
+	cmp	#'H'
 	bne	key_unknown
 want_help: