My understanding was that much of the design of ARM was literally based on 6502: https://en.wikipedia.org/wiki/ARM_architecture#Design_concepts https://en.wikip

My understanding was that much of the design of ARM was literally based on 6502: https://en.wikipedia.org/wiki/ARM_architecture#Design_concepts https://en.wikipedia.org/wiki/ARM_architecture#Design_concep... Edit: Granted, Sophie Wilson, one of the designers of ARM, is on record stating that 6502 didn't inspire anything in particular, beside being one of the few inputs to her pool of ideas (16032 and Berkeley RISC being the others): https://people.cs.clemson.edu/~mark/admired_designs.html#wilson https://people.cs.clemson.edu/~mark/admired_designs.html#wil... So... arguably :)