node-asm-ref is a Node.js binding for the libx86-ref library.

It allows to query a database about assembly language instructions to ask questions such as:

• "What are the instructions starting with the string "ADD"?"
• "What are the register flags affected by the CALL instruction?".
• "How does the RET instruction works in details?".

It is useful when creating documentation tools for assembly language, like searchable online documentation or to integrate a reference documentation into a program like a code editor or an IDE.