[A83] multiple group direct input

To: assembly-83@lists.ticalc.org
Subject: [A83] multiple group direct input
From: VertGuy@aol.com
Date: Sun, 12 May 2002 18:57:34 EDT
Reply-To: assembly-83@lists.ticalc.org


I've got a direct input loop to detect the arrows or 2nd.  It's always worked 
fine until I added a function to my program...  Now after accessing the newly 
added label, it is sent back to the getkey loop and the arrows work as 
intended but 2nd now crashes.  Below is the getkey loop and the newly added 
segment...

sprite_loopr:       
  call putmyspriter 
  call ionFastCopy  
key_loopr:      
  ld   a,kReset     
  out  (1),A        
  ld   a,Group1     
  out  (1),A        
  in   a,(1)        
  cp   kLeft    
  jp   z,switch_to_left 
  cp   kRight       
  jp   z,move_rightr    
  cp   kUp      
  jp   z,move_upr   
  cp   kDown        
  jp   z,move_downr 
  ld   a,kReset     
  out  (1),A        
  ld   a,Group2     
  out  (1),A        
  in   a,(1)        
  cp   kClear       
  ret  z        
  jr   key_loopr        
...
out_of_boundsr:
    call putmysprite10r
    call ionFastCopy
    jp sprite_loopr

Is the problem with my 2 group direct input?  I'm inclined to think it may 
because only group2 key crashes.  BUT, it only happens after the 
'out_of_boundsr' label is jumped to.

Follow-Ups:

[A83] Re: multiple group direct input

From: Matt McDole <simucal@socket.net>