@iximeow@haunted.computer

· 2w ago

after ~seven years of trying to figure out a principled and productive way to handle things like arm's pop being an alias for a particular kind of ldm, i put down a few thoughts about what i think would work maybe well https://github.com/iximeow/yaxpeax-arch/blob/instruction-alias-handling/docs/0002-instruction-aliases.md

GitHub

yaxpeax-arch/docs/0002-instruction-aliases.md at instruction-alias-handling · iximeow/yaxpeax-arch

fundamental traits to describe an architecture in the yaxpeax project - iximeow/yaxpeax-arch

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iximeow @iximeow@haunted.computer

· 6mo ago

Replying to

online: No One Reads Assembly Anymore And As Long As The Prompt Gets You The Right Behavior You Should Ship It me: there are exactly two bytes different between these builds and i am very irritated about it https://rust.godbolt.org/z/zsMKjnz1G

rust.godbolt.org

Compiler Explorer - Rust

use std::ffi::OsString; #[unsafe(no_mangle)] pub fn args() { let _ = std::env::current_exe(); }

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iximeow @iximeow@haunted.computer

· 6mo ago

i got irritated at the ceremony to go from a freshly-created KVM to "can run x86-64 machine code like normal" so i've wrote a small library for exactly that: https://codeberg.org/iximeow/asmlinator

codeberg.org

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iximeow @iximeow@haunted.computer

· 6mo ago

"what could we have gotten for 50-100 million dollars of sponsorship for security audits" project zero is right there, and the results are quite good even

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iximeow @iximeow@haunted.computer

· 5mo ago

Replying to

@lzg not enough people saying "dog ate my database" though

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iximeow @iximeow@haunted.computer

· 6mo ago

Replying to

@petterroea@infosec.exchange in the same way a physical calculator and calc.exe are similar

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iximeow @iximeow@haunted.computer

· 6mo ago

Replying to

@dramforever@mastodon.social this time it wasn't even perf, i wanted to go patch rust's stashed argc/argv and got really confused at why there was an indirect call on the way to it!!

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iximeow @iximeow@haunted.computer

· 6mo ago

Replying to

alright okay i didn't read the assembly all the rust_dealloc calls differ in the same way so it's like 10 bytes

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iximeow @iximeow@haunted.computer

· 5mo ago

spent all day thinking it would be cool to build a stewart platform

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iximeow @iximeow@haunted.computer

· 9mo ago

Replying to

@whitequark@mastodon.social it's nice of the compiler to tell us exactly where the basic blocks were

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iximeow @iximeow@haunted.computer

· 6mo ago

Replying to

@sunfish multiprocess scheduling and memory management 👀

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iximeow @iximeow@haunted.computer

· 9mo ago

Replying to

@whitequark@mastodon.social or is this just like. "; is a jump"

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iximeow @iximeow@haunted.computer

· 7mo ago

Replying to

@TomF @gsuberland @artemist @ryanc oh so you can move to and from k0, and it' in fxsave etc, but you can't actually use it in an interesting way, huh. i never thought about that.

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iximeow @iximeow@haunted.computer

· 24mo ago

We Have Always Been At War With Naming Things

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iximeow @iximeow@haunted.computer

· 13mo ago

Replying to

@TomF@mastodon.gamedev.place ah, sorry to hear

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