Stephen Edwards and Bill Mensch on the History of the 6502 Microprocessor

15:12 Interesting description of the idea of the page zero as an array of 128 16 bit registers. This was in the Olivetti desktop CPU made by Mostek, which was a predecessor of the Motorola 6800 CPU. The Motorola chip had two accumulators and one index register, but the 6502 had two index registers and one accumulator.

This video explains how the zero page was used:

See also the Visual 6502 project: http://www.visual6502.org/

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A cute little animated 6502 emulator from the seventies/early eighties:

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