Re: A86: Buffer to Screen Scrolling...


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Re: A86: Buffer to Screen Scrolling...




  ld hl,$fc10
  ld de,$fc00
  ld bc,1008
  push bc
  ldir   ;shift screen up
  ld hl,buffer
  push hl
  ld c,16
  ldir  ;copy new row to bottom of screen
  pop de
  pop bc
  ldir  ;shift buffer up


In a message dated 5/1/00 6:32:16 PM Eastern Daylight Time, zoneti@tinews.net 
writes:

> 
>  What's the best way to scroll the 1024 bytes of data (a map) into the
>  screen while scrolling the screen ($fc00) upwards.
>  
>  The buffer's name is "buffer" and I need it to scroll one line at a time
>  up while the screen shifts itself up. Whats the best way to do this? I
>  tried a couple times but failed miserably :)



----
Jonah Cohen
<ComAsYuAre@aol.com>
http://jonah.ticalc.org