On 6/28/23 21:43, Bill Degnan via cctalk wrote:
Anyone have the 2716 ePROM listing for IMSAI Basic. Version 1.4 or
whatever. I once had it, can't find my copy. If not 2716, I'll take any
listing that I can convert somehow.
Thanks
Bill
Possibly the Prom-4 board with 1702s. As mentioned 2 boards = 8k. Each
chip is 256 bytes, possibly harvest the code from the listing? I'm sure
Bill is looking for someone with the image, or the chip masters.
I looked @ the listing provided, it's assembled for org 0x00. There's a
different org for CPM. So you can't use the CPM binary in rom unless
you put a rom at 0 to jump to the CPM binary, and I'm guessing it has
conditional assembly for the serial drivers.
http://www.s100computers.com/Hardware%20Folder/IMSAI/PROM/PROM-4.htm
Will be interesting to archive if someone comes up with it. Wonder if
anyone with the basics for the clone boards may have a basic which could
be used that runs on such as the Altair or Imsai clone? I know the
Altair clone has a number of alternative boot images you can select
from, could swear one is Basic, but don't have the documents handy here.
thanks
Jim
