I sure don't (from a comment to http://queue.acm.org/detail.cfm?id=2010365):
"In the '70s, IBM released a toolkit library for assembler programming on the 3270 mainframe, under VM. One of the routines was an assembler snippet which you were supposed to put at the end of programs to signify a clean exit: it was something like, "set register 17 to 0; quit" -- two assembler instructions. So programmers throughout the '70s were adding the macro for this to the ends of their programs. Turns out, IBM put a bug in it, so that it set the wrong register (a two-instruction program with a bug in it) thus virtually all assembler programs on 3270s written within a 10-year period have this bug in them: IBM was finally forced to modify VM to cope." Of course the "register 17" is suspicious (as is "the 3270 mainframe").is this a confused reference to IEFBR14? .phsiii
