About

About Us

A RISC-V reference tool built for personal study, freely available to everyone.

While studying RISC-V architecture, I found one practical difficulty: looking up reference information was inconvenient. Confirming an instruction's encoding often meant flipping through a lengthy spec PDF. Locating a specific CSR bit field meant jumping between documents. None of these lookups are difficult in themselves, but the constant context-switching slowed things down considerably.

So I built this tool. The idea is straightforward: instead of reproducing the specification, reorganize the content around queries. Search an instruction and see its encoding, behavior, usage scenarios, and common pitfalls together. Look up a register and find its ABI name, calling convention, and save rules alongside it. The aim is simple — whatever you need, one search brings it up.

This project is entirely free and collects no user data. If it helps your RISC-V studies even a little, that alone justifies its existence.

Some content may be inaccurate or incomplete. If you notice an error, find an explanation unclear, or have suggestions for improvement, please feel free to share them via email.