Extremely CISC instructions

[Josh Dersch]

On Wed, Aug 25, 2021 at 11:19 AM Tony Duell via cctalk <
cctalk at classiccmp.org> wrote:

> On Wed, Aug 25, 2021 at 7:07 PM ben via cctalk <cctalk at classiccmp.org>
> wrote:
> >
> > On 2021-08-25 11:08 a.m., Josh Dersch via cctalk wrote:
> >
> > > (The Three Rivers PERQ included a similar "RASTEROP" instruction in its
>
> Well, it might do.There is no requirement for the PERQ machine code
> instruction set to include that, or any other particular instruction.
>

Sure there is -- if it was left out, all of the user code that depended on
it would stop functioning :).  I can remove instructions from the 11/780's
microcode as well, but then it'd cease to be a VAX...

- Josh