Grrr - !%#*^@# Kaypro!

[Allison]

>
>Subject: Re: Grrr - !%#*^@# Kaypro!
>   From: Fred Cisin <cisin at xenosoft.com>
>   Date: Wed, 03 Aug 2005 19:12:06 -0700 (PDT)
>     To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org>
>
>On Wed, 3 Aug 2005, Allison wrote:
>> >> Dave, your on track.  The CHRN vlaues do not have to corrospond
>> >> to actual head or cylinder.  They do not even have to be in order
>> >> on the media!   The only limits on them are R must be 1 or greater
>> >> (less than 255).
>> >
>> >Which creates some complications with handling 128 byte sectors (R==0).
>
>Sorry, TYPO.  I got sloppy and thought that you were saying the sector
>size value could not be 0
>
>> ???!  The value for R must be a valid sector number.  For floppies
>> that is never zero.
>There are a lot of floppies with sector numbers starting with 0.
>765 can read them and write them.

Maybe... there are caveats on that.  Technically a sector number of 0
should not be used.

Did a lot of work at "NEC"  (US arm then was NEC Micromputers USA, then later 
NEC Electronics USA.) in the early years when they were developing and 
marketing that and a HDC.  I was on the hardware/technical side.


Allison