AssemblyForNeovim

What is AssemblyForNeovim?

AssemblyForNeovim is a Lua plugin for Neovim that displays generated assembly code directly in the editor. It supports x64 and aarch64 architectures for C, C++, and Rust projects. The tool compiles functions or selected code blocks on demand and presents the resulting machine code in a floating window.

Users can trigger the feature by pressing a leader key followed by a while in normal mode, selecting code visually, or using a command for line ranges. The floating window includes simple controls to adjust compiler optimization levels, rerun the compilation, or close the view. It automatically detects compile_commands.json files when present and requires a C or C++ compiler, or rustc and cargo, to be available in the system path.

This plugin helps developers inspect how their high-level code translates to assembly without leaving the editor or switching terminals. It is released under the Unlicense license and works across operating systems where Neovim runs.

AssemblyForNeovim features

• Displays generated assembly in a floating Neovim window
• Supports x64 and aarch64 architectures
• Works with C, C++, and Rust source files
• Adjusts compiler optimization levels with plus and minus keys
• Automatically uses compile_commands.json when available
• Requires only cc, c++, rustc, or cargo on the system path
• Triggered via leader key, visual selection, or command mode

Who uses AssemblyForNeovim and for what

• Inspect compiler output for performance tuning without leaving the editor
• Compare assembly generation across different optimization flags
• Debug architecture-specific behavior for x64 or ARM targets
• Learn how Rust or C++ constructs translate to machine code
• Review inline assembly patterns during low-level development

AssemblyForNeovim FAQ

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