Has Anyone Written PDP-8 .XOR. Code Using the MQ Register (Without the EAE)?

CLASystems clasystems at gmail.com
Wed Dec 23 11:24:43 CST 2015

The MQ is standard on the PDP-8/E and up through the VT78 and the DECmates.

Not possible on the 8/L, but an easy option for the PDP-8/I and the PDP-12.

This could be a problem on the straight-8 [or LINC-8] with EAE though.
It's the only model where the SWP [MQA and MQL in the same instruction]
doesn't work [in case that matters].


On Wed, Dec 23, 2015 at 11:30 AM, Bob Vines <bobvines00 at gmail.com> wrote:

> Has anyone written PDP-8 code for .XOR. that uses the MQ Register (when
> the EAE isn't available)?  If so, can you share the source code and/or the
> algorithm?
> Thanks,
> Bob

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