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From: ast@botter.UUCP
Newsgroups: comp.os.minix
Subject: Re: First non Intel Minix ?
Message-ID: <1196@botter.cs.vu.nl>
Date: Thu, 4-Jun-87 04:20:59 EDT
Article-I.D.: botter.1196
Posted: Thu Jun  4 04:20:59 1987
Date-Received: Sat, 6-Jun-87 07:57:26 EDT
References: <540@ubu.warwick.UUCP>
Reply-To: ast@cs.vu.nl (Andy Tanenbaum)
Organization: VU Informatica, Amsterdam
Lines: 20

In article <540@ubu.warwick.UUCP> arthur@ubu.UUCP (John Vaudin) writes:
>We have just pseudo finished a port of Minix to a 32016 based home brew.

Congratulations, although in my experience "pseudo-finished" is not quite 
isomorphic to "finished."

>In general I was impressed by the ease of getting the thing to work. My
>main moan, is that the code assumes that the bss is zero. 
MINIX does not assume the bss is 0.  It explicitly zeroes it itself (see
book, line 6159).  It is not clear why you had a problem.

>My second moan is that the code assumes that text AND data
>segments start at zero. 
Not true.  When the separate I & D flag is given to the compiler, yes, but
the default is that text indeeds starts at 0, but data starts where text
finishes.

Keep the net posted on your work.

Andy Tanenbaum (ast@cs.vu.nl)