fix crash when entering browse mode from help screen via left arrow

2019-10-13 22:22:40 -04:00 · 2019-10-13 22:22:40 -04:00 · 8c72e6b137
parent f1bcdb32fc
commit 8c72e6b137
1 changed files with 9 additions and 1 deletions
--- a/src/ui.browse.mode.a
+++ b/src/ui.browse.mode.a
@ -71,8 +71,16 @@ OnBrowseSearch

 OnBrowsePrevious
         ldx   gGameToLaunch
+         inx                         ; Slightly pathological case: there may be no
+                                     ; current game by the time we get here, e.g.
+                                     ; if we entered browse mode by pressing left
+                                     ; or up arrow from the global help screen.
+                                     ; In this case, pretend we were at game 0 and
+                                     ; continue with the key handler logic.
+         beq   +
+         dex
         bne   .decindex
-         ldx   GameCount
+        ldx   GameCount

 .decindex
         dex