[TUHS] CCI POWER 6/32 | Harris HCX-[579] | Unisys 7000/40

[Marc Donner via TUHS]

Thank you, Noel!

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On Thu, Jan 15, 2026, 08:25 Noel Chiappa via TUHS <tuhs at tuhs.org> wrote:

>     > From: Marc Donner
>
>     > A colleague asked for this manual:
>     > "Does anyone have an architecture manual / processor manual ... for
>     > this system, for the CCI POWER 6/32 (or any of it's rebadgings
>
> If one (or _anything_) turns up, it's _crucial_ that it be scanned, and the
> scans sent to Bitsavers!!! Almost nothing is known of this
> historically-important machine - the first thing other than a VAX that BSD
> was ported to.
>
>
> I did a fair amount of scratching around, and starting with the toolchain
> (mostly the debugger), which still exists, I was able to retrieve enough to
> give us a decent idea of the machine:
>
>   https://gunkies.org/wiki/Power_6/32
>
> There was discussion of trying to create an emulator, from the info in
> the toolchain:
>
>   https://gunkies.org/wiki/Talk:Power_6/32
>
> I was able to work out, from the instruction decode stuff in the debugger,
> what the instructions look like (fields, etc): but that still doesn't tell
> us what all the instructions _do_, at the level of detail that would be
> needed
> for successful emulation. We'd really need that manual!
>
> There is also "Installing and Operating BSD UNIX on the Tahoe", linked from
> the above.
>
>         Noel
>