Re: A86: Graphic memory questions

To: assembly-86@lists.ticalc.org
Subject: Re: A86: Graphic memory questions
From: Steve86Asm@aol.com
Date: Sun, 26 Oct 1997 00:10:31 -0400 (EDT)
Reply-To: assembly-86@lists.ticalc.org

No, I think it keeps whatever's on the screen on the screen.

_clrScrn wipes the textmem, _clrLCD doesn't

~Steve


In a message dated 97-10-25 14:41:56 EDT, you write:

> 
>  So after the execution of my ASM program when it returns to the
homescreen,
>  it retrieves the text from before the program execution from the TEXT_MEM?

>  
>  
>  Second question - what is the difference of _clrScrn and _clrLCD?
>  
>  
>  > VIDEO_MEM equ $FC00
>  > ;This holds the contents of the LCD (i.e. 1 byte=8 pixels)
>  > 
>  > GRAPH_MEM equ $C9FA
>  > ;Not sure of this one, but someone said that this was it earlier on the
>  > list...
>  > 
>  > TEXT_MEM equ $C0F9
>  > ;This one usually holds the contents of the 21(?)x8 text screen, or
>  whatever
>  > is
>  > ;printed there using _puts, etc., unless a certain flag is turned off
(It
>  > says that flag
>  > ;name ALL over the place in the ti83 display docs)  If you turn off that
>  > flag, you can
>  > ;use this as 21*8 (?) bytes of memory for data...
>  > 
>  > ;TEXT_MEM2  -  Not sure about this one - I think the 86 only has one
text
>  > mem, but ;not sure...
>  > 
>  > ~Steve