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  1. Microsoft 6502 BASIC Open-Sourced: A 1970s ROM-Era Interpreter

    Nearly half a century after those first keystrokes on primitive terminals, Microsoft has made public the assembly-language source for its 6502-targeted BASIC interpreter — a compact, remarkable artifact of early microcomputer engineering that is now available on GitHub under a permissive MIT...
  2. Microsoft Open-Sources 6502 BASIC 1.1: Preserving an 8-bit Interpreter

    Microsoft has published the assembly source for “BASIC for 6502 Microprocessor — Version 1.1” on GitHub under a modern permissive license, making the exact code that powered a generation of home computers readable, buildable, and reusable by anyone — hobbyists, historians, educators, and...