Microsoft has publicly released the source code for its 1970s BASIC interpreter. Developed between 1976 and 1978 in Assembly, this code targeted the 6502 processor.
This legendary processor powered iconic systems like the Apple II, Atari 2600, VIC-20, Commodore 64, and Nintendo Entertainment System.
The released version, 1.1, significantly influenced the development of MS-DOS and subsequent Microsoft operating systems. It also played a crucial role in standardizing programming language implementations.
You can explore the code on GitHub: microsoft/BASIC-M6502.


