r3 programing language - ColorForth inspired. Contribute to phreda4/r3 development by creating an account on GitHub.

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R3forth is a small, fast concatenative programming language inspired by ColorForth that compiles to native 64-bit code. This comprehensive tutorial covers the full language from basics to advanced topics: the dictionary system, postfix stack operations, arithmetic and fixed-point math (48.16 format), conditionals without IF-ELSE, loops, recursion with tail-call optimization, variables and memory management, string handling, registers A and B for efficient memory traversal, the return stack, and OS integration via dynamic libraries. The tutorial emphasizes stack discipline, factoring logic into small named words, and direct hardware/OS interaction without a garbage collector.

r3/doc/r3forth_tutorial.md at main · phreda4/r3