Path: utzoo!attcan!uunet!mcvax!botter!star.cs.vu.nl!ast
From: ast@cs.vu.nl (Andy Tanenbaum)
Newsgroups: comp.os.minix
Subject: Re: posting of tty.c
Keywords: shar fix tty.c
Message-ID: <833@ast.cs.vu.nl>
Date: 4 Jul 88 11:18:51 GMT
References: <2827@ttidca.TTI.COM>
Reply-To: ast@cs.vu.nl (Andy Tanenbaum)
Organization: VU Informatica, Amsterdam
Lines: 24

In article <2827@ttidca.TTI.COM> clark@ttidca.TTI.COM (Ralph Clark) writes:
>At my site, the two-part posting arrived with two blank lines at the end
>of the first article, and  ...  [in short, mangled]
I'll try to do better next time.  In any event, I'll have to repost it anyway.
I have found and repaired several major bugs.  At the moment when the
system boots, the message: "login: "  appears on the terminal, and you
can actually log in and most things work.  I am still tracing down problems
with CTRL-S and a few things.  I'll report back as soon as I am done.

One question, perhaps somebody can help me.  I sort of have the feeling that
RS232 port 1 uses vector 12 and port 2 uses vector 11.  Is this correct?
I have scoured the IBM XT Reference Manual from cover to cover, and--silence.
If I were designing a PC, I'd do it the other way, but IBM didn't ask me.
There is a minor problem with conflicting interrupt vectors (Ethernet vs.
RS232), but I'll try to make that as modular as I can (e.g., if you don't
compile with the Ethernet flag, you get 2 RS232 ports; if you have Ethernet,
you get one).

You can always change things around yourself fairly easily by modifying the
calls in kernel/main that set the vectors.

Andy Tanenbaum
-- 
Andy Tanenbaum (ast@cs.vu.nl)