PDP-11 disk image question
J. David Bryan
jdbryan at acm.org
Sat Feb 16 19:24:28 CST 2019
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
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