Little known fact: a homebrew 1921-era MOPA exciter with Heising modulation was first offered as an optional feature for the Rockwell Turbo Encabulator. The modern 500W linear amplifier was added in default configurations of the Retro Encabulator by the early 2000s.
@_markel___@h0t_max@_Dmit More seriously though (and taking a break from the niche shitposts) 0F 0D is a NOP, according to x86 references. Seen anything surrounding these debug instructions indicating that there are microcode assisted NOP instructions with microarchitectural side effects?