RE: A83: Scrolling background...


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RE: A83: Scrolling background...




you are trying to scroll the screen to right/left or something?  I suggest
you check out the 82 scroll routines, they just about work w/83 [change or
define graph_mem is about all you have to do..]
										-Ahmed

--
Ahmed El-Helw
ahmedre@bellsouth.net
http://asm8x.home.ml.org
ICQ: 3350394

-----Original Message-----
From: owner-assembly-83@lists.ticalc.org
[mailto:owner-assembly-83@lists.ticalc.org]On Behalf Of James Matthews
Sent: Wednesday, July 29, 1998 9:54 AM
To: Assembly 83 List
Subject: A83: Scrolling background...



What's wrong with this code?  Thanks...

---<START USELESS CODE>---

.NOLIST
#define equ .equ
#define EQU .equ
#define end .end
#include "ti83asm.inc"
#include "tokens.inc"
.LIST

.org 9327h

  ld    hl,picture
  ld 	de,PLOTSSCREEN
  ld 	bc,768
  ldir
  call  _grbufcpy_v

  ld    b,96
mainloop:
  push  bc

  ld    hl,PLOTSSCREEN
  ld    b,0
loop1:
  rr    (hl)
  djnz  loop1
loop2:
  rr    (hl)
  djnz  loop2
loop3:
  rr    (hl)
  djnz  loop3

  call  _grbufcpy_v

  pop   bc
  djnz  mainloop

  ret

picture:
  {deleted}

.end
.end

<--END USELESS CODE-->


References: