> On Nov 20, 2019, at 10:37 AM, Chris Zach via cctalk <cctalk@classiccmp.org> > wrote: > > Gotta drag this stuff out and take a look. Oh and RD54's are *slow* compared > to ESDI disks and controllers. Ouchies!
Can’t be worse than my original plan, which was to use a Viking SCSI controller and hack all the things to support it. Bit fiddling happened in the driver, in exec mode. I actually had a hacked standalone DSKDMP that knew how to format “packs” on it, but it was so dog slow I never bothered writing a timesharing driver for it, instead waiting until someone came up with a better solution.