[net.micro.mac] Need Disk Driver

adams1@gumby.UUCP (11/21/85)

I have an S-100 based CP/M system that has a very fast 8 inch
hard disk drive that I would like to use on my mac.  I currently
XMODEM things back and forth, but would like a better way.

What I would like to do is write a disk driver that communicates
through one of the serial ports to the CP/M's serial board.  The
CP/M system would take commands for sector read and write, and
other calls described in Inside Mac for disk drivers.  (That is
the way many of the first generation hard disks for the mac
worked.)

I've never written a disk driver before, so any help that anyone
could pass along would be appreciated.  (Even if it is to say
where I can buy such a program.)

On the CP/M end of the hookup, I will be writting a program in
C to watch the serial port for commands and execute them.  It will
use large files to implement macintosh 'volumes', and allow many
of them to be open at once. (mounted).

Anybody else have a boat-anchor system with a hard disk that would
be interested in such a product?  (The code could be ported pretty
easily to an IBM-PC box, so you could even use your PC/XT hard
disk on your mac!!)

Thanks
Dennis Adams

!uwvax!gumby!adams1

USMail: 930 N. Grant Ave.
	Janesville, WI 53545

"I think we should put some moutains here.  That way, there would be
something for the characters to fall off of."  ---Laurie Anderson