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From: berger@datacube.UUCP
Newsgroups: net.micro.68k
Subject: Re: Orphaned Response
Message-ID: <9500005@datacube.UUCP>
Date: Thu, 7-Nov-85 11:58:00 EST
Article-I.D.: datacube.9500005
Posted: Thu Nov  7 11:58:00 1985
Date-Received: Wed, 20-Nov-85 07:49:19 EST
References: <252@sdcarl.UUCP>
Lines: 56
Nf-ID: #R:sdcarl:-25200:datacube:9500005:177600:2134
Nf-From: datacube!berger    Nov  7 11:58:00 1985


>Os-9 definitely interests me, but I'd NEVER write any real time code in
>basic. Again the C cros compiler is the issue. I'm reluctant to spend 
>$3000 on a system when my 20 meg 8mhz pc is perfectly adequate for
>i/o purposes. I would consider buying a $1000 68k coprocessor board for my
>pc provided I could get a cheap compiler to run on it which could produce
>romable code


Yes the thought of writing in BASIC is stomach turning.
But OS9 supports C, Pascal, Assembler and almost as bad as BASIC, they
will soon have a Fortran 77 compiler.

Their C compiler produces pretty fast 68000 code. Most of the optimization
is in register usage with pointers.  They are working on more global
optimization.  They also seem real sincere in continuous improvements,
including complying to the ANSI C standard as it comes out. (Their
main C compiler guy is on the ANSI committee.)

There are two companies that make 68000 boards for the PC that run OS9
and can be used as cross development environments:

TLM Systems
67 Grandview 
Pleasantville, NY 10570
914-747-1450

Hallock Systems
BOX 86
Herkimer, NY 13350
315-866-7125

Also Microware is considering porting their C cross compiler to run
native on an IBM PC.  So you would not have to buy a 68000 board for
your PC, just buy their cross compiler, and then download to your
target 68000.  They just need a push to get them to do it.

>A word about 0s9. While I find it intriguing, I am afraid of writing real
>time stuff (music stuff) for an OS for which I cannot obtain source code.
>Has anyone had experience writing real time stuff (resolution of 1ms)
>under OS9 who could say anything about it?

We do real time stuff with it and its no problem.  You don't need source.
They will give you source for their drivers though if you need it. 
If you buy the port pak it comes with all neccessary sources.  In general
though we have not had a problem with lack of source.  Microware is rather
flexible here.


			Bob Berger 

Datacube Inc. 4 Dearborn Rd. Peabody, Ma 01960 	617-535-6644
	
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