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Re: New Vax - future directions :-)

> On Jul 6, 2021, at 5:08 AM, Johnny Billquist <bqt%Update.UU.SE@localhost> wrote:
> ...
> Well, the processor handbook even have the description on how you use EMUL and MUL to do multiplication of two 64-bit values. Without EMUL it becomes a much larger and more tedious process to multiply 64-bit values. But yes, it's only usable for signed multiplications. Which is annoying. (And is the same problem on the PDP-11.)

Turning a signed multiply into an unsigned one isn't very hard.  Unsigned div is another matter, unfortunately.


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