title: Fix toggle with the Select button

Fixes: b3cb545c6ebc ("player: Update its sprites on heading and
throttle")

Signed-off-by: Miquel Sabaté Solà <mikisabate@gmail.com>

1 files changed, 10 insertions, 8 deletions

diff --git a/src/title.s b/src/title.s
index 40b9352..1c4b361 100644
--- a/src/title.s
+++ b/src/title.s
@@ -61,24 +61,26 @@
     @check_select:
         lda #Joypad::BUTTON_SELECT
         and Joypad::zp_buttons1
-        beq @check_start
+        bne @do_select
 
+        ;; If none of the above has been pressed, our only possibility is the
+        ;; start button. If that's the case, jump there, otherwise quit.
+        lda #Joypad::BUTTON_START
+        and Joypad::zp_buttons1
+        beq @end
+        JAL start
+
+    @do_select:
         lda #SPRITE_Y_POSITION0
         cmp $200
         beq @down
         sta $200
-        jmp @set_timer_and_end
+        bne @set_timer_and_end
 
     @down:
         lda #SPRITE_Y_POSITION1
         sta $200
 
-    @check_start:
-        lda #Joypad::BUTTON_START
-        and Joypad::zp_buttons1
-        beq @end
-        JAL start
-
     @set_timer_and_end:
         lda #TIMER_INIT_VALUE
         sta zp_title_timer