alex.freed.007@gmail.com wrote:
On Dec 19, 1:03 pm, aiiad...@gmail.com wrote:I have an Applicard PCPI that I'll loan you...Thanks! That would be very nice. You know my address :) Found one major bug in my logic. Getting much further now.Twice got a message "BDOS ERR ON A: SELECT". That's progress.
Do you get the "LOADING DRIVERS" message? If so, that indicates that the upload to the card was successful and that CP/M has turned around and is trying to read the drivers from disk. The boot process is a little strange:
- Apple bootstraps the CP6502 (6502 BIOS) into memory - Apple resets the Z80 and uploads an image of the Z80 CCP, BDOS and BIOS - Z80 banks out ROM and passes control to CP/M - CP/M reads the drivers file into Z80 memory, then downloads the drivers to the CP65, which installs them.I probably left out some details, but the fuzz is clearing away slowly and this is all coming back.
Steve