Fix initialization bug that has been there forever. Thanks Ian Brumby

2022-07-06 07:32:04 -05:00 · 2022-07-06 07:32:04 -05:00 · a33d7ab341
parent 0b0a761e18
commit a33d7ab341
1 changed files with 2 additions and 2 deletions
--- a/src/Graphics.s
+++ b/src/Graphics.s
@ -145,14 +145,14 @@ _SetSCBs
 ; Turn SHR screen On/Off
 _GrafOn
                 sep   #$20
-                 lda   #$81
+                 lda   #$C1              ; SHR On, Linear Memory Map On, Ignore Bank Latch
                 stal  NEW_VIDEO_REG
                 rep   #$20
                 rts

 _GrafOff
                 sep   #$20
-                 lda   #$01
+                 lda   #$01              ; SHR Off, Linear Memory Map Off
                 stal  NEW_VIDEO_REG
                 rep   #$20
                 rts