spf
lbForth
| spf | lbForth | |
|---|---|---|
| 3 | 4 | |
| 68 | 479 | |
| - | 1.3% | |
| 8.6 | 0.0 | |
| 5 days ago | over 3 years ago | |
| Forth | Forth | |
| - | GNU General Public License v3.0 only |
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spf
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Open Source Forth Systems With First Class Preemptive Multitasking?
SP-Forth/4 is an open source 32bit Forth system that runs on Windows and on Linux.
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What is actually Forth ?
I was careful to say I was referring to Windows/Mac/Linux only, but it looks like I'm wrong - there's SP-Forth, which was last updated yesterday.
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which forth do you guys use for normal day to day scripting and programming
I use SP-Forth (production), Gforth (testing).
lbForth
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Fitting a Forth in 512 bytes (2021)
One compelling use case is getting a REPL on any microcontroller with a UART and, say, ≥64K RAM (I remember lbForth[1] being particularly portable, and there are other implementations you could use as well).
I don’t know if you’d want to have that be your first experience with the Forth itself, though: there’s inherent fiddliness involved in bringing up hardware; the win is that Forth doesn’t really add any of its own. If you can get it to boot and send and receive bytes, you can get an interactive Forth on it—or if available resources don’t permit that, on an imaginary machine spanning it and your PC (“tethered” Forth).
[1] https://github.com/larsbrinkhoff/lbForth
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What's the simplest language to implement?
Forth compiler in 159 lines of Lisp and C
- lbForth: A self-hosting metacompiled Forth
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Forth on the XMOS CPU?
Probably what I would do is write a minimal forth interpreter in C, and then use that and a few core words to bootstrap the rest of the system. It is a bit more complex than that, but here is the software which does it.https://github.com/larsbrinkhoff/lbForth
What are some alternatives?
r4 - :r4 concatenative programming language with ideas from ColorForth.
cc64 - cc64 is a small-C compiler written in Forth, hosted on the Commodore C64, Plus4 and C16 with 64k, and on the Commander X16. It is targeting the 6502 CPU.
r3d4 - r3 programing language for 64 bits Windows/Linux/Mac/Rasberry Pi 4
xxdp - XXDP was, and remains, the PDP-11 diagnostic operating system. This project attempts to recover XXDP sources and documents.
gforth - Gforth mirror on GitHub (original is on Savannah)
arkam - A Simple Stack VM and Forth