All files contained in this directory are original work by
me, obtained by reading the EPROMs from several DECservers,
EXCEPT the 23-028EA EPROM image which was downloaded from:
https://9track.net/roms/
AND the 27C2048 datasheet which was downloaded from:
https://www.alldatasheet.com/datasheet-pdf/pdf/55496/AMD/AM27C2048-120DC.html