On Wed, Jun 12, 2024 at 3:09 PM Dave Dunfield via cctalk < cctalk@classiccmp.org> wrote:
> Bill Degnan wrote: > > > Without looking through everything you have first (sorry)....is the > > NorthStar DOS genned for a 2SIO card? > > Bill > > Most of the disk images I have in the Altair emulation are set up to > communicate via my own homebuilt > dual-serial card - There might be one set up for the original Mits serial > card... > > The ones with the Horizon emulation are set up for the serial ports build > into the Horizon, > and the Vector 1+ images are set up for whatever I had in that machine. > > There is a an image of the NorthStar master system distribution disk - > which has "unpersonalised > I/O" this is what was first used to get it running on the Altair - it > boots and hangs in an infinite loop > at I/O initialization - you halt the system and then toggle in minimal I/O > functions functions through > the front panel - then you can restart DOS and get a console prompt, at > which point you can load > "fresh" DOS elsewhere in memory, then using the NorthStar monitor, poke in > your I/O routines, > then IN(itialize) a fresh disk and save that DOS to it - thereby creating > a bootable disk that "talks to > the console". > > This is one of things you can do on the "Virtual Altair", do/experience > what it was was involved > in getting an OS up on a front-panel system when you didn't already have > this OS running! > Something you had to do in the first days, but few people today have done! > (other then list members or course) > I do have information about how to do this included with the emulater! > > -Dave > Thanks Dave - It has been many years since I genned a N* disk. I don't always have success with the port assigning but eventually I get it to work. Bill
