Re: A83: ...tutorials 33 & 34...

To: Henry Davidowich <assembly-83@lists.ticalc.org>
Subject: Re: A83: ...tutorials 33 & 34...
From: Linus Akesson <lairfight@softhome.net>
Date: Tue, 13 Oct 1998 15:21:45 +0100
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In-Reply-To: <19981012061419.1267.qmail@hotmail.com>
Reply-To: assembly-83@lists.ticalc.org


thanks.. =) Anyway, I don't know why it doesn't use the ops, but they are
used when calculating an expression in numeric input mode, and perhaps the
prompt has to remain in memory for some reason (for the basic parser). I
think it is safe to use for other things, but I'd rather use statvars and
savesscreen.

Linus

On 12-Oct-98, Henry Davidowich wrote:

>Yes... ok... but, why did TI choose 821Ch?  Why not op1 & op2?  Is this 
>RAM used for anything else?  Other ROM calls?  Can I use it for 
>variables if I don't need the input routines?

>BTW, I'd like to thank that great ti-83 wizard, whoever he is ;)

>>From owner-assembly-83-outgoing@towerguard.unix.edu.sollentuna.se Sun 
>Oct 11 14:23:48 1998
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>>From: Linus Akesson <lairfight@softhome.net>
>>To: Henry Davidowich <assembly-83@lists.ticalc.org>
>>Date: Sun, 11 Oct 1998 23:22:24 +0100
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>>On 11-Oct-98, Henry Davidowich wrote:
>>
>>>This question comes from something I read in James Matthews' (great) 
>>>tutorials 33 & 34.  These tutorials deal with getting string & numeric 
>>>input via "pgmio_exec."  Both tutorials load the desired prompt string 
>>>into 821Ch.  Why 821Ch?  What's this memory used for?  How big is it?
>>
>>>Thanks again.
>>
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>>
>>Because that's where the input routines expect to find a prompt... It's 
>16
>>(17?) bytes, and it was discovered by some great ti-83 wizard, can't 
>remember
>>the name right now... ehm... sinus?
>>
>>Linus
>>
>>


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References:

Re: A83: ...tutorials 33 & 34...

From: "Henry Davidowich" <rdaneelolivaw@hotmail.com>