Path: utzoo!attcan!uunet!samsung!uakari.primate.wisc.edu!sdd.hp.com!hplabs!hpda!hpcupt1!hprnd!hprpcd!!stan
From: stan@hprpcd.HP.COM (Stan Witherspoon)
Newsgroups: comp.sys.handhelds
Subject: Re: Programming the PORTFOLIO ?
Message-ID: <18110003@hprpcd.HP.COM>
Date: 17 Oct 90 05:10:41 GMT
References: <1433@gold.GVG.TEK.COM>
Organization: HP, Systems Technology Div., Roseville, Ca.
Lines: 25

I have had a Portfolio for several months now and would be hard pressed
to go without it. As for programming it, the Portfolio ROM has all of
the IBM-PC BIOS calls and MS-DOS 2.11 calls built in though some parts
of the hardware are different. For software development, Atari sells a
kit for $60 that includes a manual describing the DIFFERENCES (mostly
extensions) between the Portfolio and a IBM-PC. The kit also contains a
disk (5.25" 360K) that has a memory resident program to run on your PC
to emulate a Portfolio, and several example program sources. The
languages used are 8088 assembly and Borland Turbo C. 

Send me email if you need more specifics.

Stan


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