jonesforth
factor
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jonesforth | factor | |
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41 | 59 | |
968 | 1,580 | |
- | 0.8% | |
0.0 | 9.8 | |
about 1 year ago | 7 days ago | |
Assembly | Factor | |
- | BSD 2-clause "Simplified" License |
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jonesforth
- Konilo: A personal computing system in Forth
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Thinking Forth: A Language and Philosophy for Solving Problems [pdf]
Cool. Here are some other resources that I've encountered along the way of learning Forth:
- JonesForth: https://github.com/nornagon/jonesforth/blob/master/jonesfort...
This is legit a text that goes the an x86 Forth implementation. Actually, it's just an implementation with really extensive comments. That said, including whitespace and comments, it's just 2000 lines and the pedagogy is excellent. Highly recommended for anyone who would rather see behind the curtain before picking up a larger text.
- SmithForth: https://dacvs.neocities.org/SF/
So, Smith decided to hand-write a Forth directly in x86-64 opcodes (well, the corresponding ascii hex bytes). It's incredibly slim and enlightening how you can bootstrap a language in just a couple hundred bytes or so.
This project actually inspired me to really learn the x86-64 architecture, so I ended up hand-decompiling the SmithForth binary instead of going through his commented implementation. Hand-decompilation is an absolutely fascinating exercise. You learn all about ELF structure, opcode encodings, and actually start to see the gaps where microarchitectural details shine through. Highly recommended for any hacker that really wants to grok low level details.
- Mecrisp: https://mecrisp.sourceforge.net/
An amazingly fast Forth implementation for MSP430, ARM, RISC-V, MIPS, and some FPGAs. This gave me one really nice understanding of Forth as
A REPL into your hardware!
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Problem Running JonesFORTH
I've git-cloned JonesFORTH (https://github.com/nornagon/jonesforth/blob/master/jonesforth.S) and achieved to compile it (i.e. run make w/o an error. When I start the executable, it presents me with an empty line, and when I say BYE, it says PARSE ERROR: bye.
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Ask HN: Where do I find good code to read?
Is there any particular language you're looking for? I've found some languages hideous until I understood them and could appreciate their respective graces. Off the top of my head the I can think of a couple.
The first is Jones Forth (https://github.com/nornagon/jonesforth), start with jonesforth.S and move into jonesforth.f. I really enjoyed following along with it and trying my hand at making my own stack based language.
The other is Xv6, a teaching operating system from MIT (https://pdos.csail.mit.edu/6.828/2021/xv6.html), not all the code or implementations are top notch but it shows you non-optimized versions (just because they're simple and more readable) of different concepts used in OS design.
If you're interested in the embedded world, there is a really neat project I've been following that feels a more structured and safe (as in fault-tolerant) while still staying pretty simple (both conceptually and in the code itself): Hubris and Humility (https://hubris.oxide.computer/).
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Dusk OS: 32-bit Forth OS. Useful during first stage of civilizational collapse
Very low hardware requirements, so basic industrial control at the level where you'd otherwise use an Arduino or so but on scavenged hardware. Forth is ridiculously simple to get an implementation running.
https://github.com/nornagon/jonesforth/blob/master/jonesfort...
Is a nice starting point. It's obviously not as compact as say 'Brainfuck' but it is far more versatile.
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Making my own forth implementation
OP mentioned jonesforth, but linked to a nasm port of it. Which is probably good it’s just that the documentation in the comments with ascii art doesn’t look right on my screen. So here’s a more common repo: https://github.com/nornagon/jonesforth
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Struggling with looping constructs, BEGIN WHILE REPEAT
Rip the asm macros for the basic FORTH words out of this and then embed them in a C binary, statically linked with your favourite libs for whatever task. Although I haven't tried this yet, I'm planning on doing it with ncurses for my own Roguelike. From there, if you can convert the function calls and your parameters down to raw numbers, you can send instructions to ncurses or whatever other API you like, directly from a FORTH stack.
- I'm wondering why so few forth microcontoller tutorials are out there?
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replace jonesforth links to the left by proper link
or the mirror of this site in github: https://github.com/nornagon/jonesforth
- Languages to implement in space-constrained environments
factor
- An Exploration of SBCL Internals (2020)
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My history with Forth, and stack machines
My impression so far is (in general), Forth are practically limited to doing embedded/microcontroller development.
For us, web/mobile/desktop app devs, beside:
- 8th (https://8th-dev.com)
- Factor (https://factorcode.org)
Any suggestion which implementation we should look for?
- Forth: The programming language that writes itself: The Web Page
- Retro: A Modern, Pragmatic Forth
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Pharo 11, the pure object-oriented language and environment is released!
Factor is also very much worth a look. Forth-style syntax, but with many of the ideas from CL and Smalltalk as well. In fact as a CL fan, I was very impressed by it. It's also quite "batteries included" a la Python.
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The toki pona of programming.
Otherwise, and more seriously, I'm not completely sure variables are needed. Factor is quite usable (it's my favorite go-to language if I quickly need to script something), and mostly doesn't have them.
- Forth as an intermediate language
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A Dynamic Forth Compiler for WebAssembly
There's a note on the page from 2022-08-19, that a lot has been added to it. It also links to the github page[1] for the up-to-date changes.
I am a Lisp, April, APL/J/BQE, and Forth[2] aficionado. I did some file munging programs in Factor back in 2012 at my job to sort through theater attendance logs in Word to compile statistics.
[1] https://github.com/remko/waforth
[2] https://factorcode.org/
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What the hell is Forth? (2019)
Is there any "battery-included" ANS Forth (more or less like Python/Go) which provides access to concurrency, networking, database, GUI, etc?
Not an embedded device programmer, but mostly deals with frontend apps, and occasionally backend, so those are very relevant to me.
Or perhaps use "non-traditional" Forths like 8th (https://8th-dev.com) or Factor (https://factorcode.org)?
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-🎄- 2022 Day 2 Solutions -🎄-
Here's my day two solution using Factor
What are some alternatives?
stoneknifeforth - a tiny self-hosted Forth implementation
durexforth - Modern C64 Forth
bondi - source code for the bondi programming language
tinyrenderer - A brief computer graphics / rendering course
Raylib-CsLo - autogen bindings to Raylib 4.x and convenience wrappers on top. Requires use of `unsafe`
sectorforth - sectorforth is a 16-bit x86 Forth that fits in a 512-byte boot sector.
oil - Oils is our upgrade path from bash to a better language and runtime. It's also for Python and JavaScript users who avoid shell!
SavjeeCoin - A simple blockchain in Javascript. For educational purposes only.
batteries-included - Batteries Included project
Crafting Interpreters - Repository for the book "Crafting Interpreters"
pirsch - Pirsch is a drop-in, server-side, no-cookie, and privacy-focused analytics solution for Go.