14 Apr
2014
14 Apr
'14
4:59 a.m.
Subject change to reflect my hijacking the thread (Sorry Andrew!)
...
Eric Smith <spacewar at gmail.com> writes:
On Mon, Apr 14, 2014 at 12:12 AM, Seth Morabito
<lists at loomcom.com> wrote:
Drat. So I have three options:
1. Enforce single-disk, single-head emulation. Not so bad, really. Max
disk size would be (for WD2010 behavior) 2048 cylinders by 1 head by 256
sectors/track by 512 bytes/sector, so 256 MB. That's pretty darn
respectable.
2. Piggyback the 74LS373 on the card, or vice-versa, and jumper to its
socket. Ugly. More modification than I wanted to do.
3. Give up and do a proper MFM emulation.
Option 3 is tempting but way beyond what I wanted to do, option 2 feels
ugly and not worth it. Option 1 still wins for now, I think.
-Seth
So, if my understanding is correct, simply
replacing the WD1010 is not
enough to properly emulate a disk system, unless I'm pretending to be a
single disk with 1 head. Aiee!
IS my understanding correct? Do you (or anyone else) have any thoughts
on this?
Yes, that is correct.