Post #1516800
2026-04-22 04:52 UTC
Time for a new #OpenBSD story! Investigating what appears to be a VAX bug turns out to be the consequence of a more-than-late processor design change, so brace yourselves for a VAX history lesson!
http://miod.online.fr/software/openbsd/stories/vaxfp.html
Replies (2)
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@guenther@bsd.network 2026-04-22 06:15
@miodvallat Man, that last bit makes me wish cpus (with variable length instructions) had two instruction pointers, current and next, or something. Three would be cooler, but I’m not sure what to make the third mean…
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@topher1kenobe@fosstodon.org 2026-04-23 01:10
@miodvallat @cmccullough I built my first web page on a VAX running VMS