Microsoft open source 6502 BASIC

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opensource.microsoft.com/blog/2025/09/03/micros…

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Really cool computer history in the article and linked discussions. I remember typing CLS 9 on my CoCo… that Easter egg was probably my first exposure to the word “MICROSOFT”.


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13 year old me rn

10 print "haha poop"  
20 goto 10  

They really should have stuck with that logo.


I was just minding my own business, about to sit and poop. Now I gotta clean the whole bathroom! You know you can't laugh and poop at the same time!


One file, almost 7k lines of code.

https://github.com/microsoft/BASIC-M6502

This assembly language source code represents one of the most historically significant pieces of software from the early personal computer era. It is the complete source code for Microsoft BASIC Version 1.1 for the 6502 microprocessor, originally developed and copyrighted by Microsoft in 1976-1978.


too little, too late Bill.



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