Sujet : Re: Back after almost 30 years?
De : jdbaker (at) *nospam* consolidated.net (John D. Baker)
Groupes : comp.os.cpmDate : 20. Jul 2025, 02:49:20
Autres entêtes
Organisation : A noiseless patient Spider
Message-ID : <Pine.NEB.4.64.2507192039440.12478@spike.technoskunk.fur>
References : 1
On Sat, 19 Jul 2025, John D. Baker wrote:
I now have it booting from the hard disk. I've read the work Armin
Diehl did with a VHDL implementation of GIDE on his Prof80 ECB system
and liked it enough that I'm trying to transition my naive disk-handling
to his partitioning scheme.
I should mention that for anyone interested, it is currently available
at "ardiehl.de". Alas, the published email address on the site is no-
longer valid.
After seeing what little there is on the Davidge machines (only photos
and ROM images on bitsavers and only a couple of videos on YouTube of
the "1538A.BIN" ROM image being executed under MAME), I think I may have
the most complete, working Davidge DSB-4/6 in the world right now,
so I'm hoping to put things together to preserve the knowledge.
(There's a LOT of similarity between the DSB-4/6 implementation and the
CCS 2422/2810 FDC/CPU combination. Even the floppy formats are the
same although for 3.5/5.25 DD, I'm using all 80-track hardware rather
than 35 or 40 tracks.)
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