SID2TXT takes the mystery out of Commodore 64 music. The tool translates every frame of SID chip activity into text, creating a clear and customizable register log. With SID2TXT register logging, users can study how songs are built, how effects are triggered, and how legendary C64 composers crafted their sound.
What SID2TXT Does
SID2TXT emulates a C64 and plays the SID file silently. It supports both PSID and RSID formats while tracking every register from $D400 to $D418. Each frame is recorded as readable text, showing exactly what data the player writes. It’s a great learning tool for anyone curious about C64 music drivers, artist techniques, or for developers debugging their own sound code.
Smart Features in Action
One clever feature is the smart key restart fix. If a song toggles a key bit on and off in the same frame, SID2TXT adjusts the previous frame automatically. This produces a clean note restart in the log, perfect for studying pieces like David Whittaker’s Red Max.
SID2TXT only prints register changes per frame, keeping logs tidy and readable. It includes 6510 emulation with illegal opcode support, flexible formatting with presets, and optional song info for polished exports. One click copies or downloads the text instantly.
More Than a Log
Pair it with SID Toolbox to edit SID metadata or wrap a C64 binary as a SID file, then view the playback data inside SID2TXT. For offline use, a compact installer runs entirely in your browser, no internet required.
SID2TXT register logging turns SID data into something musicians and coders can read, understand, and enjoy. Watch the accompanying video to see this smart utility in action.
