Re: is Vax addressing sane today

On Sun, 6 Oct 2024 23:36:10 +0000, Lawrence D'Oliveiro wrote:

On Sun, 06 Oct 2024 08:40:55 GMT, Anton Ertl wrote:
>

Number of operand types never has been a criterion in any of the RISC
definitions I have seen, nor the number of instructions (although some
people like to go by that).

>
It’s in the name: “Reduced Instruction Set Computer”.
>
I always thought it should have been “IRSC”: “Increased Register Set
Computer”. The most obvious characteristic, the one that tends to hit
you first, is having lots of registers.

At the time of RISC, Denelcor has HEP and each process could have upto
256 registers (along with up to 256 constants).