LunarWaveVM is a Lua 5.4 virtual machine written in Rust.

Go to file

_ 130330b688 down to 4.2x slower than PUC Lua, but the code became ugly to behold		2023-10-02 16:14:34 -05:00
lunar_wave_cli	🚧 wip: add string interning, but a few things broke	2023-10-02 14:52:38 -05:00
lunar_wave_vm	down to 4.2x slower than PUC Lua, but the code became ugly to behold	2023-10-02 16:14:34 -05:00
pictures	📝 doc: roadmap	2023-09-27 13:58:37 -05:00
.gitignore	📝 doc: benchmark results	2023-10-01 02:00:23 -05:00
COPYING.txt	📝 doc: license	2023-09-27 14:03:21 -05:00
Cargo.lock	♻️ refactor: extract `State::eval` for testing bugs the REPL finds	2023-10-01 23:07:52 -05:00
Cargo.toml	✅ test: fix up some bugs to support an embedding example	2023-10-01 19:50:50 -05:00
README.md	📝 doc: benchmark results	2023-10-01 02:00:23 -05:00

README.md

LunarWaveVM is a Lua 5.4 virtual machine written in Rust.

luac5.4 -o - test_vectors/fizz_buzz.lua | cargo run -- --pipe-bytecode

1
2
3       Fizz
4
5       Buzz
6       Fizz
7

...
44
45      FizzBuzz
46
47
48      Fizz
49
50      Buzz

Roadmap

Loading simple pre-compiled bytecode programs
Hash tables
Fizzbuzz
Closures
Error handling
Garbage collection
Long strings
Using arrays internally for tables
Compiling Lua source code to bytecode

Benchmark

9x slower than PUC Lua, 90x slower than LuaJIT.

Based only on the n-body simulation from the computer language benchmarks, because it's easy to run.

time target/release/lunar_wave_vm --script test_vectors/n_body.lua -- 500000; time lua test_vectors/n_body.lua 500000; time luajit test_vectors/n_body.lua 500000;
-0.169075164
-0.169096567
[src/main.rs:110] x = []

real	0m10.543s
user	0m10.535s
sys	0m0.000s
-0.169075164
-0.169096567

real	0m1.173s
user	0m1.165s
sys	0m0.004s
-0.169075164
-0.169096567

real	0m0.117s
user	0m0.116s
sys	0m0.000s