PDP11 I/O page memory map
jnc at mercury.lcs.mit.edu
Thu Mar 1 20:54:50 CST 2018
> From: Charles Dickman
> So if the I/O page is completely (all processor modes) unmapped is
> there any way to recover besides a power cycle? Does the RESET
> instruction disable the MMU?
The CPU manuals don't say, about the RE$ET; I just tried it on the /23 I
happen to have next to my desktop, and yes, the RESET instruction does clear
bit 0 of SSR0.
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