From: "Brent Longborough" <[email protected]>
Sent: Saturday, October 10, 2015 4:05 PM

First, the answer is no. It is perfectly valid, IMO, to expect your
readers to "know" precisely how an instruction works.

That said, given two possible code constructs which are *reasonably
close* in efficiency, I would prefer that which uses "less complicated"
instructions, as it means the reader can press on without having to look
things up (in an xref table or in POP).

Now, multiply (M, MR, etc), unfortunately, don't have efficient, simpler
alternatives. So I tend to use the GF variants of multiply, as they
don't require multiple, implicitly-defined registers.


Well, you can always use MH, but it won't overflow.

And D, DR ?

And ED[MK] don't have good alternatives either (though their programmer
UX is apalling).

TRT ?

---
This email has been checked for viruses by Avast antivirus software.
http://www.avast.com

Reply via email to