February 8th, 2017, 09:50 AM
IMSAI CP/M Kit
February 8th, 2017, 10:02 AM
I see a single unlabeled floppy--how does the seller know that it's an IMSAI (or any other system) boot disk?
February 8th, 2017, 10:24 AM
I build this disk wich works together with the BIOS.
February 8th, 2017, 10:26 AM
You're right. I offer an Extension for an IMSAI.
Originally Posted by Al Kossow
February 8th, 2017, 11:38 AM
Thank you for responding. I think it would be useful to amend the auction description to describe exactly what setup you built the BIOS for. Someone with a "true blue" IMSAI setup might otherwise have problems.
Originally Posted by kleindi
February 8th, 2017, 12:03 PM
Thanks for pointing that out.
But I'm not sure what's missing.
I added the following Information:
contains CP/M 2.2
Monitorprogram and Bootloader in the 4k ROM on the Salota Mixed-Memory Board
The BIOS is based on the skelet which is shown in the manual http://www.s100computers.com/Hardwar...floppy%20I.pdf on page 45.
Please let me know, if you think that further important Information still missing.
February 8th, 2017, 12:13 PM
Looking at the BIOS listing in the Versafloppy manual, you're probably okay. At first, I thought that the BIOS might be Z80-specific. Then I noticed that, although Z80 syntax is used in the BIOS listing, the author has confined himself to 8080 opcodes. So all looks as it should.
February 8th, 2017, 12:25 PM
I feel better now. Of Course I would like to avoid missunderstandings.
March 16th, 2017, 11:28 PM
Anybody considering the purchase of this floppy drive subsystem should be aware this the Versafloppy floppy disk controller board is single density only.
And, the single-sided (yielding about 250K-300K storage per drive) Shugart SA-800 floppy drives are non-rackmount drives, meaning that they have a larger footprint than the much more common rackmount type SA-800 and SA-850 drives, and these drives will not fit in 95% of all of the floppy drive enclosures that are available.