Ah, this takes me back. I wrote implementations of the Kermit protocol for the Z80, 6502 (both in assembler) and the 8086 (mostly in C, but some assembler for t

Ah, this takes me back. I wrote implementations of the Kermit protocol for the Z80, 6502 (both in assembler) and the 8086 (mostly in C, but some assembler for the interrupt-driven I/O). It was a really nice and easy to implement protocol, and very sturdy - you could unplug the serial port connection and then re-plug it, and the file transfer would restart where it was interrupted. This would have been mid-1980s.