On Mon, Jul 5, 2021 at 9:37 PM Zane Healy <heal...@avanthar.com> wrote: > > On Jul 5, 2021, at 5:05 PM, Ethan Dicks via cctalk <cctalk@classiccmp.org> > > wrote: > > > > On Mon, Jul 5, 2021 at 2:46 AM David Brownlee via cctalk > > <cctalk@classiccmp.org> wrote: > >> In case anyone was interested in an FPGA VAX implementation > >> http://mail-index.netbsd.org/port-vax/2021/07/03/msg003899.html > > > > I think this is fantastic, but getting the CPU running is only the > > start. I'll be curious what/how storage emulation goes, and > > networking. Bonus points for sync serial that can run a DDCMP line to > > vintage machines. > > I found myself wondering what it would take to put this, RAM, network, and a > SD Card “Disk” on a Q-Bus board. :-)
Adding a Qbus to it would certainly offload the work of implementing storage - just put it on the user to find a Qbus SCSI card or a KDA-50 or a Qbone or whatever and you wouldn't have to worry about OS drivers or (alternately) mimicking a vintage disk controller. I would hope it would use its own RAM. No point in forcing anyone to use vintage RAM. For convenience, it would be nicer to have some sort non-spinning disk rather than a $$$ vintage controller. -ethan