#reference
- Effect command crosswalk (MOD / XM ↔ S3M / IT) conceptThe PC and Amiga trackers use two alphabets for the same jobs: protracker 's numbers 0 – F (kept by fasttracker-2 's xm-format , which adds letters) and scream-tracker-3 's letters A – Z (kept and extended by …
- Player identification (pattern searching) conceptTelling which music routine — which sid-player-routine — a .sid file was made with, by looking for a short sequence of code bytes that only that routine contains. Stefano Tognon set the method out in sidin #3 and #5 …
- Commodore 64 Programmer's Reference Guide publicationThe official Commodore / Howard W. Sams manual for the commodore-64 (1982). For music its parts are chapter 4 , "Programming Sound and Music on Your Commodore 64" (pages 183–208: introduction, volume control, …
- Pan Docs publicationThe community-maintained technical reference for the game-boy , published by the gbdev community at gbdev.io/pandocs from the GitHub repository gbdev/pandocs and released into the public domain (CC0 1.0). Its audio …
- SIDId toolLasse Öörni's player-identification tool: sidid.cfg holds byte-pattern signatures for about 1 300 named C64 players and editors, and sidid.nfo a note per entry with author, release year and a CSDb reference — which is …
- C64 Programmer's Reference Guide, ch. 4 — Programming Sound and Music on Your Commodore 64 (1982) summaryThe official 1982 introduction to the sid from the BASIC programmer's side: ten example programs that POKE the chip's registers, each with a line-by-line explanation, plus a short "technical explanation" of frequency, …
- Charts and Tables for SID-Wizard 1.6 (document version 1.0, 2014) summaryA fifteen-page cheat sheet for SID-Wizard 1.6: one page per screen or table with the value schemes, then key tables that list every C64 key next to its vice equivalent, and four reference tables (decimal ↔ signed ↔ hex, …
- HVSC — SID file format description (PSID v1–v4, RSID) summaryThe reference description of .sid files as used by the High Voltage SID Collection: a big-endian header (magic, version, offsets, addresses, song count, speed bits, three 32-byte strings, and from v2 on flags for clock …
- Impulse Tracker ITTECH.TXT — technical reference (summary) summaryThe byte-level description of the it-format used by every IT player since (libopenmpt, Schism, duet ): header, instrument, sample and pattern layouts, the volume and slide formulas, the channel-allocation procedure and …
- MOS 6581 Sound Interface Device (SID) datasheet — the text behind Appendix O summaryThe manufacturer's twelve-page specification of the sid : block description, the 29-register map, a paragraph per register bit, the envelope rate table, the filter, pins and electrical data, the note table with a …
- OpenMPT manual — Effect Reference summaryThe complete command table of openmpt for every format it writes — MOD, XM, S3M, IT and its own MPTM — with the effect-memory rules, the oscillator waveforms, the retrigger volume table and the "sound control" …
- Pan Docs — Audio Details summaryThe internals-and-quirks page of the pan-docs audio section — "The PPU is a bunch of state machines, and the APU is a bunch of counters." It follows the signal from generator through DAC, mixer, master volume and …
- Pan Docs — Audio Overview summaryThe opening page of the audio section of pan-docs , the community Game Boy hardware reference (CC0). It names the four channels of the game-boy-apu , the VIN cartridge input and the shared concepts — triggering, …
- Pan Docs — Audio Registers summaryThe register-by-register specification of the game-boy-apu : the NRxy naming scheme (x = channel, 5 = global; NRx1 length/duty, NRx2 volume/envelope, NRx3 period low, NRx4 trigger, length enable and period high), then …
- Scream Tracker 3.20 File Formats And Mixing Info (TECH.DOC) summary"The OFFICIAL information on s3m format and much more" — the S3M header, the instrument/sample header, the AdLib instrument layout, the packed pattern format, the STIMPORT and SIMPLEX exchange formats, the …
- SIDId (cadaver/sidid): the player-signature list and its notes summaryThe tool HVSC and DeepSID use to say which player a SID file runs in. Its config is a list of byte patterns per player name; its .nfo is a terse who-wrote-what with release years and CSDb links — the most compact …
- The CheeseCutter Guide — the recovered site manual (Wayback) summaryThe manual exists after all: the dead homepage's Guide page — enumerated out of the Wayback CDX index after the live site, the repo and the release zips all came up empty — documents cheesecutter 's default player, …