Appendix: Published Variants of 10 PRINT
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Rationale
We've uncovered several published variations of 10 Print, as well as created a few of our own (e.g. for a=1 to 2 step 0:print chr$(205.5+rnd(1));:next a), and it makes sense to do a formal variorum, collating the versions, noting the significant and insignificant changes to the program, and explaining what is going on with each of the changes.
--MarkSample 20:42, 5 August 2010 (EDT)
Published Variations
1982
10 PRINT "{CLR/HOME}"
20 PRINT CHR$(205.5 + RND(1));
40 GOTO 20
From Commodore 64 User's Guide. Wayne PA; Indianapolis, IN: Commodore Business Machines; Distributed by Howard W. Sams & Co., 1982. <http://www.commodore.ca/manuals/c64_users_guide/c64-users_guide.htm>.
See also C64 Users Guide
1984
8 PRINT CHR$(205.5 + RND(8)); : GOTO 8
From Krueger, Dan A., and Louis F. Sander. “Magic $93.” Run Jul 1984. 13-14. <http://www.old-computer-mags.com/magazine/magazine_viewer_eng.php?idx=Run.htm&base=Run&num=007&page=13>.
See also RUN Magic 93
2008
10 PRINT CHR$(109+RND(1)*2);:GOTO 10
From Montfort, Nick. "Obfuscated Code." Software Studies: A Lexicon. Ed. Matthew Fuller. Cambridge, MA: The MIT Press, 2008. 193-199.
See Also CHR$(109) Variation
2010
for a=1 to 2 step 0:print chr$(205.5+rnd(1));:next a
From Montfort, Nick. "GOTO and line number considered optional." Email Exchange. 27 July 2010.
See also Optional GOTO
