31 Mar
2019
31 Mar
'19
3:03 p.m.
Hey Al,
I haven't looked at the MAME stuff but if it uses an NEC 765 then it
probably won't be the same. The signal list is quite a bit different, e.g.
only 5 non-contiguous address bits are used. Real weird.
I'll take a look all the same.
=]
On Sun, Mar 31, 2019, 4:30 PM Al Kossow via cctalk <cctalk at classiccmp.org
wrote:
On 3/31/19 12:42 PM, Anders Nelson via cctalk wrote:
I've read through the service manuals and
other docs on Bitsavers but I
can't seem to find a deeper explanation on the protocol that runs over
the
DB-37 cable.
Have you looked at the displaywriter MAME driver?
The floppy uses an NEC 765 disk controller