The Boston Diaries

The ongoing saga of a programmer who doesn't live in Boston, nor does he even like Boston, but yet named his weblog/journal “The Boston Diaries.”

Go figure.

Sunday, November 24, 2019

The major reason why Intel needs to twist the tail of a Pentium so it will go 50 MIPS is because 45 of them are LOAD and STORE.

Via Lobsters comes this brief historty of the x86 architecture and the 1,000 ways to move data between registers, and by 1,000 ways, it really is 1,000 ways. Mind boggling. These days, the x86 has exceeded any known definition of CISC and is now into LICISC territory.

It's also interesting to see just how far back the x86 line goes—it pretty much starts with the Intel 4-bit 4004 back in 1971. So it seems we're running a 64-bit extension over a 32-bit extention over a 16-bit redesign of an 8-bit computer based on a 4-bit computer from a 2-bit company with just one CPU line. Nice.

Obligatory Picture

[The future's so bright, I gotta wear shades]

Obligatory Contact Info

Obligatory Feeds

Obligatory Links

Obligatory Miscellaneous

You have my permission to link freely to any entry here. Go ahead, I won't bite. I promise.

The dates are the permanent links to that day's entries (or entry, if there is only one entry). The titles are the permanent links to that entry only. The format for the links are simple: Start with the base link for this site:, then add the date you are interested in, say 2000/08/01, so that would make the final URL:

You can also specify the entire month by leaving off the day portion. You can even select an arbitrary portion of time.

You may also note subtle shading of the links and that's intentional: the “closer” the link is (relative to the page) the “brighter” it appears. It's an experiment in using color shading to denote the distance a link is from here. If you don't notice it, don't worry; it's not all that important.

It is assumed that every brand name, slogan, corporate name, symbol, design element, et cetera mentioned in these pages is a protected and/or trademarked entity, the sole property of its owner(s), and acknowledgement of this status is implied.

Copyright © 1999-2024 by Sean Conner. All Rights Reserved.