Path: utzoo!mnetor!tmsoft!torsqnt!news-server.csri.toronto.edu!cs.utexas.edu!sun-barr!olivea!uunet!maverick.ksu.ksu.edu!unmvax!bbx!bbxsda!scott
From: scott@bbxsda.UUCP (Scott Amspoker)
Newsgroups: comp.sys.atari.st
Subject: help porting software
Message-ID: <1732@bbxsda.UUCP>
Date: 20 Feb 91 20:42:22 GMT
Distribution: na
Organization: BASIS International, Albuquerque NM
Lines: 31

A friend of mine who owns an Atari ST has expressed an interest in some
midi software I wrote.  My software was written for a Yamaha C1 (286 PC,
MS-DOS) but the hardware/OS-specific routines are small, isolated, and
relatively unassuming.  Although it seems to me that porting my software
should be rather easy, I admittedly know *nothing* about the ST.  I 
basically need to do the following things (I'm not even sure if these
are all possible on the ST):

    Full buffered, interrupt driven midi-out
    Arrange for midi-in interrrupt to call my C routine
    Arrange for timer interrupt to call my C routine
    set the timer interval (hopefully to resolutions less than 1ms).
    simple screen output - put a charater at position x,y, set an attribute
    simple keyboard input - single character read with no wait

I've looked through some hardware manuals and I really didn't find what
I wanted to know.  If anyone out there can point me in the right direction 
I would appreciate it.  (If you happen to live in Albuquerque, call me on 
the phone).

Also, I noticed Turbo C mentioned in a couple posts in this newsgroup.
I wasn't aware that Borland offered Turbo C on the Atari ST.  Is this
true?  If it offers much of the same support library as it does on DOS
that would help quite a bit.

-- 
Scott Amspoker                       | Touch the peripheral convex of every
Basis International, Albuquerque, NM | kind, then various kinds of blaming
(505) 345-5232                       | sound can be sent forth.
unmvax.cs.unm.edu!bbx!bbxsda!scott   |    - Instructions for a little box that
                                     |      blurts out obscenities.