SWEET 16 is mentioned in the article. This thing is more accurately 'Hardware-assisted software interrupts (or TRAPS) for the 6502' except that title would have probably caused the editors at Dr. Dobbs to kick the author in the shin.
Does anyone know what the author (Dennette A. Harrod) is up to today? Some quick web searches showed his homepage[1] was updated in 2010, but his resume doesn't have anything more recent than 1994. I got curious when I saw his resume included work on CAD standards that have been a regular reference for me for the last twenty years...
Did a bit of casual internet stalking and found LinkedIn[1] and Facebook[2] and wikipedia user page[3]. The Facebook was updated with birthday wishes in February but nothing recent.
>The following is a hypertext version of a scanned document. The original article was published in BYTE Volume 5, Number 10 (October 1980) pages 282-285. Since I am the original author, and it appeared in print over 15 years ago, I do not need McGraw Hill's permission to reproduce it here. With this publication on the World Wide Web, I hereby re-establish my copyright.
Unless the author retained copyright, he's probably infringing.
http://www.6502.org/source/interpreters/sweet16.htm