I received word that S80 FW 101B does boot and shoot RAW/DNG. I converted the S80 100G port currently in the trunk in all aspects. That does not make mishaps impossible and you'll know wether to mark this ALPHA / BETA or not.
Thanks, and congratulations on your first port

. I added this to the 1.5 trunk autobuild as ALPHA. I didn't check it in too much details, but what I did look at seemed fine.
One oddity: The stubs_entry.S and funcs_by_*.csv files in the zip look like they were generated before some changes in the stubs_entry_2.s file. The addresses for
kbd_pwr_off, LEDDrive and PutInNdFilter
in the generated files showed 100g values, while the stubs_entry_2.s showed correct 101b values.
I checked in freshly generated ones.
edit:
And backported to 1.4 since the other s80 sub is there.