29887Re: [midatlanticretro] How do I make boot floopy? IMSAI + Northstar + CP/M?
- Mar 26 1:08 PM
> That's a pretty major "depending". There seem to have been dozensYou'd be surprised. I got Bill Degnan's Vector Graphic ZCB strapped up to operate with its console port at the standard North Star addresses. If it's Intel 8251/8251A based (as the IMSAI SIO was) there's a good chance it can be made to look like the North Star serial console port. Anything with a 40-pin 1402 descendant UART can be made to look close enough if it supports strapping the status bits individually.
> of different serial cards, each using different I/O addresses,
> different bits in the byte to indicate status. That's why Processor
> Tech went to such lengths on the 3P+S. You could strap everything
> on that card.
> Or you could patch the diskette image before you transfer it from theYes, this is true. I like working with old stuff, though!
> PC to the IMSAI.
> I'll bet you a beer at the next VCF East that, if he has a N* controller,Huh, I must be the odd case then...I've got three working single-density controllers, all acquired with other piles of S-100 boards. I'd just assumed they were equally common.
> it's an mds-ad3. I have one single density controller -vs- a whole
> stack of ad3s. Totally by accident, found at random as I've added to
> my collection.
> I think I have the tools to generate a single density CP/M boot disk.Awesome, thanks! I was thinking about getting CP/M 3 working with it, since it handles sector sizes other than 128 bytes natively.
> Remind me when the next VCF gets closer and I'll try to make you one.
- << Previous post in topic Next post in topic >>