Build Your Own Forth Interpreter

(codingchallenges.fyi)

23 points | by AlexeyBrin 3 days ago ago

6 comments

  • iberator 23 minutes ago ago

    This is a strange article imo.

    I was expecting to see FORTH in bare metal C or ASM.

    There is a common myth about newbie programmers that FORTH is write-only and that you need to type everything in one line, without comments or function calls etc.

    Writing forth is super easy especially if you have a stack machine at your disposal. For example when you are building your own virtual cpu/architecture with assembler and compiler.

    It's more trivial than to understand any JavaScript framework lol

    Research FORTH more guys - it doesn't need to be strange and hard :)

    ps. Lisp SUCKS

    /rant

    • volemo 8 minutes ago ago

      I was with you 'till the last line. :P

  • spc476 10 minutes ago ago

    I've already done that---ANS Forth for the 6809 (https://github.com/spc476/ANS-Forth).

  • ithkuil 39 minutes ago ago

    "if you know one forth, you know one forth"

    • js8 28 minutes ago ago

      So implement four of them, and you will know them all! First Forth with indirect threaded code, second Forth with direct threaded code, third Forth with subroutine threaded code, and the final fourth with token threaded code.

    • AlexeyBrin 22 minutes ago ago

      I doubt you will want to code professionally in Forth unless you work on embedded, so the dialect you learn doesn't matter too much. But it is interesting to implement a small interpreter and play with it.