This is a somewhat annotated listing of the Tektronix V2 Firmware
Assemble this file using "Makroassembler AS v1.42" by Alfred Arnold, ported to windows in a package called "aswcurr" http://john.ccac.rwth-aachen.de:8000/as/
..\aswcurr\bin\asw -i . -cpu 8085 -L rom468combined.asm
..\aswcurr\bin\p2bin.exe rom468combined -r $0000-$3fff
comp Rom468Originals.bin rom468combined.bin <no.txt
where Rom468Originals.bin is a binary copy of the combined original roms U565 and U575 and no.txt just contains the word "no"