https://github.com/dcascaval/forth

https://github.com/dcascaval/forth

Last synced: 23 days ago
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• Host: GitHub
• URL: https://github.com/dcascaval/forth
• Owner: dcascaval
• Created: 2019-01-12T01:08:58.000Z (about 6 years ago)
• Default Branch: master
• Last Pushed: 2019-01-14T01:35:06.000Z (about 6 years ago)
• Last Synced: 2024-11-05T23:19:45.942Z (2 months ago)
• Language: OCaml
• Size: 22.5 KB
• Stars: 1
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
## Forth Interpreter

Interprets a subset of Forth, including arithmetic, branching, loops, and some basic I/O. 

Some conventions: 

  * All tokens must be strictly space delimited. This includes comment starts, ends, etc. 

  * Interpreter-defined tokens are in all-caps, such as `DROP`,`SWAP`,`IF`... `ELSE` ... `THEN`, etc.

  * Loop indices are denoted as `i` tokens and take on the loop index value at runtime. This forth does not support nested loops. 

#### To Compile:

  run `make` on a system that has OCaml 4.05+ and Jane Street Core installed. 

#### To Run:

  `./finth test/basic.forth` 

#### Supported interpreter-defined tokens:

  * `+`,`-`, `*`, `/`,`%` (Arithmetic)

  * `&`,`|`,`=`,`<`,`>`,`INVERT` (Comparsions and Booleans)

  * `DROP`,`SWAP`,`DUP`,`ROT`,`OVER` (Stack manipulation)

  * `.`,`EMIT`,`CR` (Output)