On Tue, 30 Nov 2021 at 18:10, Jon Steinhart <jon@fourwinds.com> wrote:
Humm writes:
> Quoth Jon Steinhart:
> >arnold@skeeve.com writes:
> >> Can someone please explain why it's called "random" logic? Discrete
> >> logic I understand (more or less), but I've not heard the term "random"
> >> used in this context before now.
> >
> >Well, as a recovered random logic designer, I think that the name comes
> >from there being no particular structure to the logic.  Many parts of
> >logic design are very regular, think memory.  But that regularity doesn't
> >exist when, for example, decoding irregular instructions.
>
> Now that’s a “random” definition.
>
> --
> Humm

OK, I'll try again.  For anybody familiar with Portland, Oregon, it's the
difference between driving in Northwest where there's a rectangular grid
numbered in one direction and alphabetical in the other, and approaching
the Ross Island Bridge from the west side which appears to be designed by
someone following a goat while tripping their brains out.  One can address
Northwest Portland quite easily unlike getting onto the Ross Island Bridge.

So - and as I say this as someone who has no direct experience with this level of logic - everything is directly addressable but the difference is in how you get there?

-Henry