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From: floyd@hayes.ims.alaska.edu (Floyd Davidson)
Newsgroups: comp.os.cpm
Subject: Re: Strange Kaypro problems
Message-ID: <1990Nov22.110949.12852@hayes.ims.alaska.edu>
Date: 22 Nov 90 11:09:49 GMT
References: <1990Nov22.030504.6649@simasd.uucp>
Organization: University of Alaska Fairbanks
Lines: 29

In article <1990Nov22.030504.6649@simasd.uucp> donm@pnet07.cts.com (Don Maslin) writes:
>
>                                                      11-21-90
> 
>      On the later machines, at least, the drive light (and motor) stay
>      on for several seconds after disk access and then turn off.  I
>      would assume that yours should do that also.

The Kaypro monitor ROM has no provision for timeout on the disks.
Micro C's ROM and TurboROM both do.
 
>      In order to use QD drives you need to make changes to both ROM and
>      BIOS.  There are/were a couple of outfits that had slightly
>      differing versions: Advent's TurboROM and Micro Cornucopia's MAX
>      ROM.

I installed a TurboROM on a K-10, and once had a copy of the first
ROM that Micro C sold.  I don't recall that the BIOS needed to be 
changed with either of them.  Mind you I could be wrong on that,
but if I remember right all the code that handles disk blocking and
so on is in the ROM, all the BIOS does is call the ROM.  On most
earlier CP/M systems that code was actually in the BIOS itself.

Floyd

-- 
Floyd L. Davidson                             floyd@hayes.ims.alaska.edu
Salcha, AK 99714                    paycheck connection to Alascom, Inc.
 When I speak for them, one of us will be *out* of business in a hurry.