https://guiand.xyz/rssA blog about random programming topics, usually related to optimization or compilers.en-USSat, 20 Apr 2024 14:35:10 GMTrfeed v1.1.1https://github.com/svpino/rfeed/blob/master/README.mdhttps://guiand.xyz/blog-posts/getting-my-cpf.htmlI never figured out my Brazilian documentation until adulthood. Here's how I finally registered for my CPF.Gui AndradeSat, 20 Apr 2024 00:00:00 GMThttps://guiand.xyz/blog-posts/bootstrapping-debian-polarfire-soc.htmlThe PolarFire SoC is an affordable, useful, and widely available Linux-capable RISC-V board. Here's how you can run Debian on it.Gui AndradeTue, 16 Mar 2021 00:00:00 GMThttps://guiand.xyz/blog-posts/tamper-protecting-just-in-time.htmlHow do you ensure the integrity of vast amounts of data all at once? How can you tell if your evil maid has corrupted your data? Merkle trees hold the answer.Gui AndradeMon, 11 May 2020 00:00:00 GMThttps://guiand.xyz/blog-posts/most-dangerous-memory.htmlClang in -O0 can do some dangerous things. It might just overflow your stack!Gui AndradeTue, 05 Nov 2019 00:00:00 GMThttps://guiand.xyz/blog-posts/macro-assembly-codegen.htmlRust macros are flexible enough to implement a sort of DSL for assembly. This is useful for building up Direct Memory Access sequences.Gui AndradeFri, 03 May 2019 00:00:00 GMThttps://guiand.xyz/blog-posts/compile-time-unions.htmlTraits are a good way to select code at the type system level. But with some hackeryyou could instead specialize based on a sort of higher-order 'type map'.Gui AndradeSat, 19 Jan 2019 00:00:00 GMThttps://guiand.xyz/blog-posts/unboxed-trait-objects.htmlTrait objects generally need to be stored on the heap. But normal heap datastructures like Vec need an additional layer of Box to store trait objects. We can eliminate that.Gui AndradeSat, 10 Nov 2018 00:00:00 GMThttps://guiand.xyz/blog-posts/bitfields.htmlStable Rust with classical macros generally isn't friendly to implementing bitfield structures. But there's a way.Gui AndradeMon, 03 Sep 2018 00:00:00 GMT