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From: Stefan Monnier <monnier@iro.umontreal.ca>
Newsgroups: comp.arch
Subject: Re: My 66000 and High word facility
Date: Tue, 20 Aug 2024 09:40:11 -0400
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> I can understand the reluctance to go to 6 bit register specifiers, it
> burns up your opcode space and makes encoding everything more difficult.
> But today that is an unserviced market which will get customers to give you
> a look. Put out some vapor ware and see what customers say.

If the issue is only the encoding, then presumably, Mitch could go the
route of a prefix instruction (like his PRED instruction or the
instruction he uses to do wide shifts/adds/...).


        Stefan