Re: A83: Help a newbie

To: assembly-83@lists.ticalc.org
Subject: Re: A83: Help a newbie
From: Jkhum98@aol.com
Date: Tue, 12 Oct 1999 19:02:08 EDT
Reply-To: assembly-83@lists.ticalc.org


In a message dated 10/12/99 5:53:29 PM Central Daylight Time, 
smithrh@ispchannel.com writes:

> Hello everyone,
>  I'm just into asm now, and I was writing this program modeled after one of 
>  James' tutorials. Basically, this program starts with a pixel in the 
middle 
>  of the screen and draws a continuos line (in the direction of keypad 
>  presses), until the y-equals key is pressed. Then a single dot moves 
around 
>  until you press y-equals again, at which point it will draw the line 
again. 
>  Also, if the dot is moving around, it will erase any previously drawn 
>  pixels it encounters. Finally, pressing clear is supposed to clear the 
>  screen. The dot is supposed to begin moving from that point again. The 
>  problem I have is that after I press clear, the screen clears, but after 
>  that nothing moves (you'll see when you run it). It is just a blank 
screen. 
>  It's not frozen though. You can still 2nd quit out of it. I'll comment it 
>  at the points I am unsure of. Could anyone show me what's wrong? Thanks,
>  Nathan Smith
>  
>  .NOLIST

*clip code*

I didnt look over the whole thing, but I suggest that you push/pop the 
registers around the "call _clrLCDFull", because that romcall may mess up the 
registers. Try that, and then tell me if it still gives your problems...

Jason_K