Re: A89: Maybe some math programs?

To: assembly-89@lists.ticalc.org
Subject: Re: A89: Maybe some math programs?
From: "M. Adam Davis" <adavis@baladyne.com>
Date: Tue, 24 Nov 1998 22:17:39 -0500
Delivered-To: assembly-89-outgoing@towerguard.unix.edu.sollentuna.se
References: <v04011700b28115eea80b@[146.151.40.69]>
Reply-To: assembly-89@lists.ticalc.org

No, here is a list of the chips in it:

U10, U11 SRM20V100LLT    -    1Mbit static RAM
U9 LH28F160S3TL10    -    Flash (Can't remember the size, if interested do a
search on altavista for "28f160" )
U5 SC414181FG16    -    Motorola custom chip.  Perhaps it includes an FPU on
chip?
U8 ? small chip, "orbit 61096B 9809"
U? LP324M

Don't ask about the lack of U1 -U4, and U7.  Who knows, couldn't find any
markings.  maybe underneath the LCD, but there's very little room there.

If there is an FPU, it has to be on the uP, I can't imagine they'd hide it
under the LCD or something, since it would require quite a few direct lines to
the uP.

Anyway.

-Adam

Nathan Mueller wrote:

> >The MC68000 processor does not have floting point operations built in, but
> >they are probably in the ROM.  The compiler that TI used probably had a
> >floating point emulation package in it, and we could use that.
>
> I don't know about the TI-89, but early apples had a floating point
> coprocessor instead of softwear emulation.  I'd think the 89 might have
> one, just because it should be doing a lot of floating point calculations.
>
>         --Nate

References:

Re: A89: Maybe some math programs?

From: Nathan Mueller <nlmueller@students.wisc.edu>