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@eswenson1
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HAKMEM 141 seems to be later version, with a date in 1980. HAKMEM 17 appears older, but different in some respects.

Note: The timestamps on both of these files are suspect. The date on HAKMEM 141 appears to be Jan 1, 1980 (no HHMMSS), and the date on HAKMEM 17 was in the year 2009 (which is probably the year it was extracted from ToTS). I cannot find the correct date/time for this file.

@larsbrinkhoff
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According to my notes from #1533, the 141 version has a timestamp of 1972-03-16. This came from the tape image, not the MIT zip file.

@larsbrinkhoff
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MAPS; AI 1000 and 1037 has MB;HAKMEM 17 at 0/0/0 and 141 at 3/16/0, respectively. Note that the last /0 is a 1-bit year number; we can infer that it's 1972 because that's the year the latter tape was written. All we can say about version 17 is that it was backed up in April 1971. We also know AI memo 239 was published February 1972, but that doesn't help much.

@larsbrinkhoff
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The 3100150 tape should have the hour-minute-second timestamp for HAKMEM 141.

The day is 16, not 15. My hacked itstar may have the day wrong. We know it's 16 because there are ITS files with backup listings that say 3/16/0. Here, 0 means 1972.

@eswenson1
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I’ll update the date, but I definitely saw 15 somewhere.

defrykolly-hash referenced this pull request Sep 29, 2025
Force loading the dictionary from disk instead of DECtape by using a
filename translation instead of binary pathing the core image.
Setting date for HAKMEM 141 to be 1972-03-16.  Setting date for HAKMEM 17 to be 1971-01-01,
although this date is probably not correct, but we have no info to base its date on other than
that it was "before" 1972.
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3 participants