SCROLLER

[file: Scroller]



Another one from Holland, this time from Paul van Duijn. This is a

versatile screen scrolling program which operates on the top seven

lines of the screen. The program is located at address 30000 and

before use you need to set up exactly the way in which it operates by

using the following POKES:



POKE 30021, length_of_the_line (max 32 characters)

POKE 30001,8*PEEK 30021

POKE 30002,256-PEEK 30021

POKE 30013,start_position_of_line (0=0,0 and 255=7,31)



Paul suggests, and I found it to be true, that the best way is to

completely fill the screen lines 0 to 7 with some characters and then

experiment by poking the above addresses with various numbers before

calling the routine with LET l=USR 30000

