11 Jan
2012
11 Jan
'12
6:15 p.m.
Date: Wed, 11 Jan 2012 01:03:09 -0800
From: Josh Dersch <derschjo at mail.msu.edu>
To: General Discussion: On-Topic and Off-Topic Posts
<cctalk at classiccmp.org>
Subject:
Message-ID: <4F0D504D.9060302 at mail.msu.edu>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
On 1/10/2012 3:00 PM, Fred Cisin wrote:
Are you
attempting to format single or double sided? WHICH is your
TM-100?
Are you attempting to format 40 track or 80?
It's a TM-100-2A (originally from an IBM PC). Formatting single sided
at the moment, 40 tracks. 
11 Jan
11 Jan
6:43 p.m.
On 1/11/2012 10:15 AM, MikeS wrote:
I didn't see an answer to my question whether you're correctly
specifying the drive/disk type for RDOS?
I'm using the RDOS transfer utilities -- nowhere in the instructions
does it require me to enter RDOS commands for selecting a drive. The
version of INIT provided with the utilities has (apparently) been built
with all drives (A-D) defined as 5.25", 40 track drives, the rest of the
choices INIT presents for me allow me to select the density and sides I
want to format for.
Date: Wed, 11
Jan 2012 01:03:09 -0800
From: Josh Dersch <derschjo at mail.msu.edu>
To: General Discussion: On-Topic and Off-Topic Posts
<cctalk at classiccmp.org>
Subject:
Message-ID: <4F0D504D.9060302 at mail.msu.edu>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
On 1/10/2012 3:00 PM, Fred Cisin wrote:
Are you
attempting to format single or double sided? WHICH is your
TM-100?
Are you attempting to format 40 track or 80?
It's a TM-100-2A (originally from an IBM PC). Formatting single sided
at the moment, 40 tracks.
d;;;xy
where
d=drive (A)
;;; = 5.25"
x=sides (S or D)
y=density (S or D)
Also, what speed is your Z80?
It's a 2Mhz Z80 on an Ithaca Audio IA-1010 board.
As mentioned, if you're using the 40 track DD format you have to use a
40 track DD drive; an 80 track DD drive might work, but an HD drive
spins at the wrong speed, among other issues.
Yes, this has been sufficiently beaten into me at this point :).
As a matter of fact at the time Dave and I both worked on a version of
what became his RT program, but I gave up while he obviously
persevered; I don't think there were any gotchas in his final version
but now I'm going to have to try it out again just to get reacquainted.
If you do discover a gotcha, let me know :).
- Josh
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