5 ms·

Arplisp Interpreter for Raspberry Pi in a Single ASM File, No Libraries Used

75 points by wrycoder 6y ago

djeiasbsbo 6y ago
This is absolutely amazing. I don't know a lot about Lisp but have spent my holidays to get look at ELF binaries and start learning about AArch64 assembly. Just great to have such a well commented ressource to study!
solvorn 6y ago
I started porting this to aarch64 a month ago. It’s fun. There are some architecture specific hacks that don’t just translate.
- klelatti 6y ago
  I was wondering if anyone would do this. Any plans to share your experiences (and the code)?
  - solvorn 6y ago
    It’s a fork on GitHub but it’ll be a month or so till I have a commit ready
    - klelatti 6y ago
      Thanks. Will look out for it.
rcarmo 6y ago
This is a singular thing of beauty, if only because the code is _extremely_ small. It is 3000+ lines long because it is heavily commented and makes for some pretty interesting reading (even if you don't know ARM assembly, it is easy to follow). It's also a great first addition of the year to my LISP resources page at http://taoofmac.com/space/dev/lisp http://taoofmac.com/space/dev/lisp :)
- wrycoder 6y ago
  Don’t miss the Maru interpreter and compiler: https://www.piumarta.com/software/maru/ https://www.piumarta.com/software/maru/
GeorgeTirebiter 6y ago
Yes it's very good. I'm interested in making the small mods to get it to work with NetBSD; but ultimately I'm trying to understand if a lispy environment for STM ARM Cortex-M0 (small) processors can be productively used for real-time embedded systems. I know, I know... I'm more or less thinking an Arduino-like set of standard syscalls for low-level IO, combined with the simple init() and loop() structure ('big loop') for now. Then, multi-threading. Then, the World! (Hello...)
jonjacky 6y ago
This is a 'literate program' - most of the contents of the single file are explanation, not code. It includes an introduction to Lisp and an introduction to ARM assembly!
- deleted 6y ago
  [deleted]
apricot 6y ago
Nice! The world needs more literate assembler programs.

75 points by wrycoder 6y ago

This is absolutely amazing. I don't know a lot about Lisp but have spent my holidays to get look at ELF binaries and start learning about AArch64 assembly. Just great to have such a well commented ressource to study!

solvorn 6y ago

I started porting this to aarch64 a month ago. It’s fun. There are some architecture specific hacks that don’t just translate.

klelatti 6y ago
I was wondering if anyone would do this. Any plans to share your experiences (and the code)?
- solvorn 6y ago
  It’s a fork on GitHub but it’ll be a month or so till I have a commit ready
  - klelatti 6y ago
    Thanks. Will look out for it.

rcarmo 6y ago

This is a singular thing of beauty, if only because the code is _extremely_ small. It is 3000+ lines long because it is heavily commented and makes for some pretty interesting reading (even if you don't know ARM assembly, it is easy to follow). It's also a great first addition of the year to my LISP resources page at http://taoofmac.com/space/dev/lisp http://taoofmac.com/space/dev/lisp :)

wrycoder 6y ago
Don’t miss the Maru interpreter and compiler: https://www.piumarta.com/software/maru/ https://www.piumarta.com/software/maru/

GeorgeTirebiter 6y ago

Yes it's very good. I'm interested in making the small mods to get it to work with NetBSD; but ultimately I'm trying to understand if a lispy environment for STM ARM Cortex-M0 (small) processors can be productively used for real-time embedded systems. I know, I know... I'm more or less thinking an Arduino-like set of standard syscalls for low-level IO, combined with the simple init() and loop() structure ('big loop') for now. Then, multi-threading. Then, the World! (Hello...)

jonjacky 6y ago

This is a 'literate program' - most of the contents of the single file are explanation, not code. It includes an introduction to Lisp and an introduction to ARM assembly!

deleted 6y ago
[deleted]

apricot 6y ago

Nice! The world needs more literate assembler programs.