On Sat, 8 Oct 2022, Paul Kimpel wrote:
  modify a lot of the software. Timing dependencies
aside, G-15 instructions
 didn't have addresses -- they had "timing numbers" that effectively told
the
 hardware how long to wait before reading or writing a word on the drum. 
Oh really, that is then similar to the addressing scheme of the Diehl
Combitron (a marvellous design by Stanley Frankel).
Christian