© The Author(s), under exclusive license to APress Media, LLC, part of Springer Nature 2022
S. SmithRP2040 Assembly Language Programminghttps://doi.org/10.1007/978-1-4842-7753-9_2

2. Our First Assembly Language Program

Stephen Smith1  
(1)
Gibsons, BC, Canada
 

Most of the functionality of a Raspberry Pi Pico is contained in the custom RP2040 chip that contains dual core ARM Cortex-M0+ CPUs. The ARM processor was originally developed by a group in Great Britain, who wanted to build a successor to the BBC Microcomputer used for educational purposes. The BBC Microcomputer used the 6502 processor, which was a simple processor with a simple instruction set. The problem was there was no successor to the 6502. They weren’t happy with the microprocessors that ...

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