[A83] Re: Last free mem byte

To: <assembly-83@lists.ticalc.org>
Subject: [A83] Re: Last free mem byte
From: "Tijl Coosemans" <tijl@ulyssis.org>
Date: Wed, 5 Dec 2001 13:15:59 +0100
References: <200112050846.IAA09127@chup-a-chup.scarlet.nl>
Reply-To: assembly-83@lists.ticalc.org


> From: "Henk Poley" <HPoley@DDS.nl>
>
> > Van: Tijl Coosemans <tijl@ulyssis.org>
> >
> > > From: "SUCKER from the old days" <sucker_pvn@hotmail.com>
> > >
> > > Where is the last byte of the free mem? (Ti-83-)
> > > (there were all the vars change places and stuff like that,
> > > so right before the last block of TI-OS)
> > >
> > >            SUCKER

> > On the 83-, free mem starts at (930Dh) and ends at (9311h).
> >
> > The 83+'s dev guide has some good information about that, ram structure
> > and such (chapter 2 page 5).

> Okay, but that's only true while running an asm program, as since at that
> moment there isn't any edit-buffer opened. During normal operation
(prompt,
> BASIC editor, etc.) the TIOS allocates all memory for the inputbuffer or
> program.
>
> So with a stay-resident interrupt program things are a bit different.
>
> Henk Poley <><

I've never tested it, but when there's an edit buffer open and you calculate
the amount of free mem the way you'd otherwise do, I assume you get 0000h.

mvg,

tijl

http://tijl.studentenweb.org/

References:

[A83] Re: Last free mem byte

From: "Henk Poley" <HPoley@DDS.nl>