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Both CPUs can access the floppies. The floppy controller is the only thing attached to the Z80 bus and the 8088 has to talk to the Z80 in order to access it. Some sort of shared memory shenanigans.

I scored this historical oddity today. 1983 dual-processor (8088 and a Z80), 256k of RAM, dual 400k 5.25" floppy slots sharing a single drive motor, a 10MB HDD, and 12" monochrome CRT. Oh baby. While taking it apart to clean and inspect I discovered that it was a completely tool-less and modular...

The dreampi would probably easiest. a Cisco/Linksys/Sipura SPA122, SPA2102, or larger model should do the job with any devices with a little configuration. The Cisco ATA 186's are "real" Cisco devices so the configuration will be different and possibly have silly Cisco license restrictions. The...

I, for one, welcome our new cap soldering overlords