898e4df503
e76a3deb removed GC from finish_ctx. Can be taken care of from the C interface 91924e68 clean up heap after an error. Most important after an out_of_memory a bit dependent on how one interacts with the RTS ba1c57ad new test on setvar together with let - passes. df38cde4 small cleaning around bug fix area git-subtree-dir: lispBM/lispBM git-subtree-split: e76a3debc2abfd8528becb4295eb6f22492b3826 |
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| benchmarks | ||
| chibios-examples | ||
| doc | ||
| docker | ||
| esp-examples/repl | ||
| examples | ||
| include | ||
| mascot | ||
| notes | ||
| old | ||
| platform | ||
| repl | ||
| sdlrepl | ||
| src | ||
| tests | ||
| utils | ||
| videos | ||
| zephyr-examples | ||
| .clang_complete | ||
| .gitignore | ||
| .travis.yml | ||
| LICENSE | ||
| Makefile | ||
| README.md | ||
| flash_nrf52_with_stlink.sh | ||
| lispbm.mk | ||
| mktags.sh | ||
| runinfer.sh | ||
| runsa.sh | ||
| setup_fw_build.sh | ||
| zephyr-source-me.sh | ||
README.md
lispBM (LBM)
LispBM is a lisp or scheme like programming language for microcontrollers. LispBM also borrows a couple of ideas from Erlang when it comes to concurrency, message passing, pattern matching and process monitoring. The LispBM runtime system can be compiled for either 32 or 64 bit platforms and runs on a wide range of hardware such as for example STM32, NRF52, ESP32 or X86. When running the LispBM runtime system on a microcontroller it can be built on top of ChibiOS, FreeRTOS or ZephyrOS and it can also be built to run on top of a regular linux.
The LispBM mascot, Lispy the llama, was created by PixiLadyArt. Thank you, Pixi!
Want to get involved and help out?
There are lots of interesting things to code on in and around the LispBM runtime system.
- Are you interested in microcontrollers and programming languages?
- You find it fun to mess around in C code with close to zero comments?
- Then join in the fun. Lots to do, so little time!
- Poke me by mail bo(dot)joel(dot)svensson(whirly-a)gmail(dot)com
Documentation
- Work in progress LispBM language reference.
- Work in progress LispBM programming manual
- C code documentation can be found here.
- LispBM's internals are documented as a series of blog posts.
- There are demonstrations on YouTube.
Purpose
- Have fun.
- Learn about lisp.
- Learn about microcontrollers.
- An interactive REPL for devboards.
- ...
Features
- heap consisting of cons-cells with mark and sweep garbage collection.
- Built-in functions: cons, car, cdr, eval, list, +, -, >, <, = and more.
- Some special forms: Lambdas, closures, lets (letrecs), define and quote.
- 28-Bit signed/unsigned integers and boxed 32-Bit Float, 32-Bit signed/unsigned values.
- Arrays (in progress), string is an array.
- Compiles for, and runs on linux-x86.
- Compiles for, and runs on Zynq 7000.
- Compiles for, and runs on STM32f4.
- Compiles for, and runs on NRF52840.
- Compiles for, and runs on ESP32 (ARM - WROOM).
- Compiles for, and runs on ESP32C3 (RISC-V).
- Compiles for, and runs on Raspberry PI (Tested on 32bit Raspbian OS)
- Quasiquotation.
- Concurrency.
- Message-passing.
- Pattern-matching.
Vague or continuosly ongoing todos
- Doxygen?
- Tutorials?
- Be much more stringent on checking of error conditions etc.
- More built in arithmetic.
- More built in comparisons.
- Make uniform how to return success or failure. It is sometimes bool and sometimes int right now.
Compile a 32bit binary for linux (Requires 32bit libraries. May need something like "multilib" on a 64bit linux)
-
Build the repl:
cd repl-cpsand thenmake -
Run the repl:
./repl
Compile a 64bit binary for linux
-
Build the repl:
cd repl-cpsand thenmake all64 -
Run the repl:
./repl
Compile on Raspberry Pi
To build the library exeute the following command in the lispbm folder:
PLATFORM=pi make
To build the repl-cps example repl do:
cd repl-cps
make pirepl
Then start it up using ./repl
Building the library is not a prerequisite for building the repl anymore.
SDL and LispBM
In the sdlrepl directory there is a start of a set of SDL bindings for LispBM.
To build this repl you need the following dependencies:
- libsdl2-dev -
sudo apt-get install libsdl2-dev - libsdl2-image-dev -
sudo apt-get install libsdl2-image-dev
Then compile the repl using the command make