Editing MMX (instruction set) (section)

===Naming===
MMX is officially a meaningless [[initialism]]<ref name=NW.97>{{cite magazine
 |last=Tanaka
 |first=Jennifer
 |date=February 16, 1997
 |title=A new chip off the block
 |url=https://www.newsweek.com/new-chip-block-175014
 |magazine=[[Newsweek]]
 |quote="the name, which doesn't stand for anything"
 |access-date=August 31, 2019
 |archive-date=August 31, 2019
 |archive-url=https://web.archive.org/web/20190831140255/https://www.newsweek.com/new-chip-block-175014
 |url-status=live
 }}</ref> [[trademark]]ed by Intel;<ref>{{Cite web|url=http://www.intel.com/content/www/us/en/trademarks/mmx.html|title=Intel &#124; Data Center Solutions, IoT, and PC Innovation|access-date=December 17, 2013|archive-date=December 17, 2013|archive-url=https://web.archive.org/web/20131217230027/http://www.intel.com/content/www/us/en/trademarks/mmx.html|url-status=live}}</ref> unofficially, the initials have been variously explained as standing for 
* ''MultiMedia eXtension'',<ref name=NYT.1997Jan09/> or 
* ''Matrix Math eXtension''.<ref>{{cite book |last1=Zhang |first1=Peng |title=Advanced Industrial Control Technology |date=1 January 2010 |publisher=William Andrew Publishing |location=(12) MMX technology |isbn=978-1-4377-7807-6 |pages=155–214 |chapter-url=https://www.sciencedirect.com/science/article/abs/pii/B9781437778076100051 |access-date=2 June 2024 |chapter=CHAPTER 5 - Microprocessors}}</ref>

[[Advanced Micro Devices]] (AMD), during one of its many court battles with Intel, produced marketing material from Intel indicating that MMX stood for "Matrix Math Extensions".{{cn|date=October 2022}} Since an [[initialism]] cannot be trademarked,{{cn|date=October 2022}} this was an attempt to invalidate Intel's trademark. In 1995, Intel filed suit against AMD and Cyrix Corp. for misuse of its trademark MMX. AMD and Intel settled, with AMD acknowledging MMX as a trademark owned by Intel, and with Intel granting AMD rights to use the MMX trademark as a technology name, but not a processor name.<ref name=NYT.1997Apr22>{{cite news
 |date=April 22, 1997
 |title=Intel and Advance Micro agree on chip trademark
 |url=https://www.nytimes.com/1997/04/22/business/intel-and-advance-micro-agree-on-chip-trademark.html
 |work=[[The New York Times]]
 |access-date=January 13, 2019
 |archive-date=January 13, 2019
 |archive-url=https://web.archive.org/web/20190113232336/https://www.nytimes.com/1997/04/22/business/intel-and-advance-micro-agree-on-chip-trademark.html
 |url-status=live
 }}</ref>