[Simh] B5500 idle detection

[David Wijnants]

I have just started using the new Burroughs B5500 emulator with MCP XIII.
Thanks to Paul Kimpel's and Richard Cornwell's sites, the PDFs at
bitsavers.org, and considerable head scratching, I now have it running the
timesharing MCP, and CANDE listening on port 2000. It's wonderful to be
able to play with this classic architecture and an OS that was written
entirely in ALGOL nearly ten years before UNIX. Before Multics, even.

Anyway. The only problem is that my laptop's CPU fan is constantly
spinning at eleven. I have "set cpu idle" in my initialisation file, and
"show cpu" reports "idle enabled", but CPU usage is constantly at 100%.

Have I missed some undocumented "set" option?

David Wijnants.
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