this post was submitted on 18 Feb 2024
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A very small Rust binary indeed (darkcoding.net)
submitted 9 months ago by starman to c/rust
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Can we make a Rust program that’s as small as it’s assembler equivalent?

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[–] Vorpal 13 points 9 months ago

That assembly program the author compares to is waay bloated. This guy managed with 105 bytes: https://nathanotterness.com/2021/10/tiny_elf_modernized.html (that is with overlapping part of the code into the ELF header and other similar level shenanigans). ;)

All kidding aside, interesting article.

[–] [email protected] 1 points 9 months ago (1 children)

i think nothing can outperform simple asm for simple operations.

[–] [email protected] 4 points 9 months ago

IDK, I'm not aware of all the fancy asm commands, but compilers are, so a good compiler will probably produce better code than me. For example, simple loops could turn into a set of SIMD instructions or be unrolled, while I'd naively do a jump loop.