Willi Kusche wrote:
Hi! "Steven N. Hirsch" <shirsch@adelphia.net> wrote in message news:<L2Bia.26332$TW2.4723065@news1.news.adelphia.net>...Joel wrote:The AE Z80 Plus does work with the Apple IIgs and even has 3.5 drive and RAMdisk support.Yes, I know. I wrote it! <g>.Are you referring to the code in the ROM on the card? I think I bought one of those cards on eBay.
No, the Z80+ did not have an onboard ROM. I developed most of the driver software and configuration utilities that were shipped with Applied Engineering's "CP/AM" operating system. This used a third-party CCP and BDOS which were compatible with DR CP/M and a highly-customized BIOS (both Z80 and 6502 code).
The work was done under contract with AE, circa 1985-86. Steve