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Yes, looks like Dave Dunfield's ROM has some different functions, but it needs working RAM. I required a ROM for troubleshooting that would function without any RAM. The other big difference is Dave's ROM runs at an absolute fixed location, I required the ROM code to be 100% relative, so it...

https://github.com/codesleuth7/pdp11_rl_ekermit PDP-11 RL01/RL02 bare metal ekermit server. This project was created as a way to backup PDP-11 RL01/RL02 disks using minimal hardware without an operating system. If you have a bootable PDP-11 with other storage peripherals then faster options to...

https://github.com/codesleuth7/northstar_horizon_z80_rom The NorthStar Horizon is a S-100 bus Z80 computer from 1977. This ROM monitor was created as part of a restoration project. The initial need was a diagnostic to isolate and troubleshoot basic hardware problems. The minimum hardware...