AssemblyForNeovim is a small Lua plugin that brings compiler-generated assembly into Neovim in a floating window. It supports C, C++, and Rust, targeting x64 and AArch64. Its purpose is to let developers inspect how code is translated into machine instructions without leaving the editor, much like using an online compiler explorer. The repository provides a demonstration video and installation instructions for lazy.nvim; setup consists of adding the plugin and calling `require("asm").setup()`.
In normal mode, pressing `a` displays the assembly for the function under the cursor. In visual mode, the same key compiles the selected text, and the `:Asm` command can also be used with selected lines. Within the floating window, `+` and `-` adjust the compiler optimization level, `R` reruns compilation, and `q` closes the window. The plugin requires `cc` or `c++` for C and C++ compilation, or `rustc` or `cargo` for Rust, to be available on the system path. When present, a `compile_commands.json` file is used to obtain compilation settings. The project is a compact editor utility rather than a full debugger: its focus is quickly comparing source code with the assembly produced by different optimization levels.
Summary generated by AI from the linked article. hn.today is not affiliated with Hacker News or Y Combinator.
Borland C++ 2.0’s source code has been reconstructed from its original binaries, with the recreated compiler producing byte-identical output. The source could help preserve and study DOS-era software and early C++ development. (hackaday.com)
An AI-assisted workflow transformed ripgrep’s two-file documentation into a structured MkDocs site with dedicated pages, visual aids, and clearer learning paths. Automated page discovery and Mermaid diagram checks helped expand the documentation while catching unnecessary complexity. (entropicdrift.com)
OpenOrange runs Cloudflare Workers on AWS, Google Cloud, Azure, Rivet Cloud, or self-hosted infrastructure while preserving the familiar developer experience. It claims lower compute and storage costs, with deployment options ranging from fully managed service to open-source self-hosting. (openorange.dev)
ggml 1.0.0 removes deprecated public APIs and legacy DIAG_MASK operations, while adding configurable YaRN truncation and FP8 support. It also improves backend performance with quantized matrix multiplication, fused MoE operations, and new attention and scheduling paths. (github.com)
GigChain Keys is a free, open-source live performance tool for keyboard players, positioned as an alternative to MainStage. It supports VST3 instruments, setlists, chord charts, song timelines, live controls, and practice warm-ups on Windows, macOS, and Linux. (github.com)
A proposed terminal protocol adds thin borders to cell edges, letting panels, fields, and buttons gain outlines without sacrificing rows or columns. A Ghostty patch and Ratatui demos show the approach, and its creator is seeking feedback from terminal and TUI developers. (joshka.net)
Today's best Hacker News stories, summarized and screenshotted, one email a day.