23 lines
1.1 KiB
Markdown
23 lines
1.1 KiB
Markdown
# Impotent
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This is an attempt to create a Lua virtual machine capable of true multithreading. Once the nctref compiler matures enough, I intend to plug it into Impotent as a JIT.
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Completed features:
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1. Per-thread heap /w special heap for exited threads called the "dead heap"
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2. Naive mark & sweep GC
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3. Thread-safe user interface (but barely tested)
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Impotent is still work-in-progress:
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1. Integers are 32-bit only
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2. No error handling, meaning any mistake will either crash the VM or make it silently fail
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3. The only standard library is `print` and it doesn't work correctly
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4. Tables cannot be resized
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5. Most operators are still missing
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6. The user API is completely different from that of PoC Lua
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Impotent requires C11 and an architecture with 8-byte atomic operations, but otherwise it is completely cross-platform.
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Performance-wise, it's surprisingly competitive with PoC Lua, considering how quickly it was made up to the point of writing this README (~2 weeks). By far the worst bottleneck is the GC, since it requires all threads and their heaps to synchronize.
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