In BASIC, after a FAST/SLOW process, an unsightly scrolling can occur when exiting the FAST mode.
To avoid this dropout of the screen frame, just add a PAUSE before the SLOW commande:
Code: Select all
10 FAST
(... your code..)
1000 PAUSE 0
1010 SLOW
Code: Select all
10 FAST
(... your code..)
1000 PAUSE 0
1010 SLOW
Code: Select all
1 PRINT "HELLO"
2 STOP
10 FOR A=1 TO 22
20 SCROLL
30 NEXT A
60 SAVE "P"
70 RUN