Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: utzoo!utgpu!water!watnot!watmath!clyde!rutgers!seismo!sundc!netxcom!beattie
From: beattie@netxcom.UUCP
Newsgroups: comp.os.minix
Subject: Re: MINIX and the Tandy 1000
Message-ID: <410@netxcom.UUCP>
Date: Wed, 8-Apr-87 22:25:40 EST
Article-I.D.: netxcom.410
Posted: Wed Apr  8 22:25:40 1987
Date-Received: Sat, 11-Apr-87 10:36:01 EST
References: <1127@botter.cs.vu.nl> <472@moncol.UUCP> <1135@botter.cs.vu.nl>
Reply-To: beattie@netxcom.UUCP (Brian Beattie)
Distribution: world
Organization: NetExpress Communications Inc. Vienna, Va.
Lines: 19
Keywords: sob, whimper (interrupts?)

I don't think the problem is the video memory since the memory
set aside for video is mapped to b8000 to c0000.  I just got
my copy of the disks and have looked at the book and a possible
problem is that interrupt 5 is connected to the vertical sync.
The problem might that since all interrupts are enabled in main
(line 979) that MINIX might be getting an unexpected interrupt
and panic(ing) before the console is set up.  I tryed to patch
this with debug but it would seem that a sub ax,ax is used to
load ax with zero so there is no room to set a mask.

I don't know when I might get a chance to try to fix this.

I have a copy of the Technical Reference for the Tandy 1000
-- 
-----------------------------------------------------------------------
Brian Beattie			| Phone: (703)749-2365
NetExpress Communications, Inc.	| uucp: seismo!sundc!netxcom!beattie
1953 Gallows Road, Suite 300	|
Vienna,VA 22180			|