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Miloslav Ciz 2024-03-24 21:52:08 +01:00
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{ I'm a bit ashamed but I'm not really "fluent" at Forth, I just played around with it for a bit. Yes, I'm planning to get into it more after I do the other million things on my TODO list. Let me know if there is some BS, thank u <3 ~drummyfish }
Forth ("fourth generation" shortened to four characters due to technical limitations) is a very good, extremely [minimal](minimalism.md) [stack](stack.md)-based untyped [programming language](programming_language.md) that uses [postfix](notation.md) (reverse Polish) notation. Its vanilla form is super simple, it's miles simpler than [C](c.md), it's very [elegant](elegant.md) and its compiler/interpreter can be made very easily, giving it high practical freedom (i.e. not being practically controlled by any central organization). As of writing this the smallest Forth implementation, [milliforth](milliforth.md), has just **340 bytes** (!!!) of machine code, that's just incredible. Forth is used e.g. in [space](space.md) technology (e.g. [RTX2010](rtx2010.md), a radiation hardened space computer directly executing Forth) and [embedded](embedded.md) systems as a way to write efficient [low level](low_level.md) programs that are, unlike those written in [assembly](assembly.md), [portable](portability.md) (fun fact: there even exist computers directly running Forth in hardware). Forth was the main influence for [Comun](comun.md), the [LRS](lrs.md) programming language, it is also used by [Collapse OS](collapseos.md) and [Dusk OS](duskos.md) as the main language. In its minimalism Forth competes a bit with [Lisp](lisp.md).
Forth ("fourth generation" shortened to four characters due to technical limitations) is a very good, extremely [minimal](minimalism.md) [stack](stack.md)-based untyped [programming language](programming_language.md) that uses [postfix](notation.md) (reverse Polish) notation. Its vanilla form is super simple, it's miles simpler than [C](c.md), it's very [elegant](elegant.md) and its compiler/interpreter can be made very easily, giving it high practical freedom (i.e. not being practically controlled by any central organization). As of writing this the smallest Forth implementation, [milliforth](milliforth.md), has just **340 bytes** (!!!) of [machine code](machine_code.md), that's just incredible. Forth is used e.g. in [space](space.md) technology (e.g. [RTX2010](rtx2010.md), a radiation hardened space computer directly executing Forth) and [embedded](embedded.md) systems as a way to write efficient [low level](low_level.md) programs that are, unlike those written in [assembly](assembly.md), [portable](portability.md) (fun fact: there even exist computers directly running Forth in hardware). Forth was the main influence for [Comun](comun.md), the [LRS](lrs.md) programming language, it is also used by [Collapse OS](collapseos.md) and [Dusk OS](duskos.md) as the main language. In its minimalism Forth competes a bit with [Lisp](lisp.md).
{ There used to be a nice Forth wiki at wiki.forthfreak.net, now it has to be accessed via archive as it's dead. ~drummyfish }
@ -120,3 +120,9 @@ bye
```
We can run this simply with `gforth my.fs`, the programs should write `120`.
## See Also
- [Lisp](lisp.md)
- [comun](comun.md)
- [Tcl](tcl.md)