“Hello, world” from scratch on a 6502 — Part 1

Caption notes

Ben Eater starts with a 6502 and asks how to observe its first actions. He explains his choice of a static model that can pause its clock, changes the Arduino monitor from continuous polling to sampling addresses on clock pulses, and adds data and read/write direction. He then sets a predictable default for the otherwise undriven data lines and uses the reset vector and repeated no-operation instructions to explain how the processor begins fetching instructions. Putting a program in ROM and getting the machine to display Hello, world are left for later videos. This guide follows his spoken account. Wiring, code and displayed readings were not inspected.