On 2/16/19 7:55 AM, Bill Gunshannon via cctalk wrote: > So, I used SIMH to do an install of a complete OS on an RA81 disk. I > would like to move this to a real disk and try it on a real PDP-11.
Note that SIMH always writes disc images in little-endian format, regardless of host platform. If your real PDP-11 expects to see big-endian 16-bit words coming from the drive, you'll need to byte-swap the disc image before writing it to a real disc. (This is necessary, e.g., when copying an HP 1000 disc image generated by SIMH to a real HP disc drive.) -- Dave