atari5200: fix _clrscr to use correct screen size

Could be different than default when linking with atari5200-conioscreen-20x12.o.
2025-03-04 23:07:13 +01:00
parent b0220e5456
commit 16224cdd36
2 changed files with 3 additions and 2 deletions
--- a/libsrc/atari5200/clrscr.s
+++ b/libsrc/atari5200/clrscr.s
@@ -7,8 +7,9 @@
        .export         _clrscr
        .include        "atari5200.inc"
        .importzp       ptr1
+        .importzp       screen_width, screen_height

-SCRSIZE =       480             ; 20x24: size of default conio atari5200 screen
+SCRSIZE = screen_width * screen_height

 _clrscr:lda     SAVMSC          ; screen memory
        sta     ptr1