SN like the sig,
I could add,
DEC VAX11, Microvax, Sinclar MK14, Nascom 2, Jupiter Ace, Z80, PET 4016, BBC B, 8080 & RCS 1802 boards, PC's (8086 386 486 etc) Rasb-pi
The 1802 had the best instruction ever "SEX"! Obviously the designers at RCA are not your staid, single-minded, no-nonsense engineering types at all. They appear to enjoy mixing a little fun in with their work! Setting X, from which the infamous mnemonic is derived, simply puts the value of N into the X register."