On 12/05/2016 01:09 PM, Lars Brinkhoff wrote: > As Charles wrote, the PDP-10 commonly uses 7-bit bytes for ASCII > text, but that's only part of the truth. The architecture is quite > byte size agnostic. There are instructions to operate on any byte > size from 1 to 36 bits, at any position inside a word. (Well, a > later extension to the architecture restricted this a bit.)
I've seen PDP-10 9-track tapes done two ways--one character per frame and then 4 frames (36 bits) with 5 7-bit characters and the sign bit left over. --Chuck
