[cctalk] Re: undocumented instructions including HCF [was: System 360 question]

[Fred Cisin via cctalk]

The IBM monochrome monitor could be damaged by putting it into an 
unsupported mode.

The idea of a command that would brick the system is popular.
It may be possible, but it's very difficult to track down the details from 
FOAFs.

--
Grumpy Ol' Fred                 ci...@xenosoft.com