unitracker-player
The generic player of canonical unitracker documents,
and their builder into standalone PSID .sid files.
It reads a document with the grammar of
unitracker-grammar and plays it to the state of
the 25 SID registers ($D400-$D418) at the end of each tick. It knows only the document: its
instruments, programs, expressions, phrases and timeline, and the note table F(k) at its clock.
Install
pip install "unitracker-player @ git+https://github.com/anarkiwi/unitracker-player"
Use
from unitracker_player import load, play, Player
frames = play(text) # np.uint8 array (ticks, 25), to the end of an ending song
frames = play(text, ticks=3000) # a looping song needs ticks
song = load(text) # parse and compile once; play(song, ...) reuses it
player = Player(song)
regs = player.step() # the 25 registers after one tick; None once the song ends
player.regs # the register file the last tick wrote, one store per register
read(text) returns the document as plain dataclasses. A text outside the grammar raises
unitracker_grammar.CanonicalError; a document the player refuses raises PlayError.
unitracker-play song.yaml --ticks 3000 --out frames.npz # array "frames"
unitracker-play song.yaml --out frames.csv # one row per tick, d400..d418
unitracker-play song.yaml # CSV to stdout
unitracker-sid song.yaml # song.sid
unitracker-sid song.yaml --out x.sid --ticks 3000 --load 0x2000
unitracker-sid renders the song here, proves where a looping song repeats, and assembles a
6502 playroutine (llvm-mos, locally or in the
docker-mos-llvm-sdk image) whose raster IRQ
plays the same registers tick for tick.
Docs
docs/semantics.md: the meaning of every construct of the grammar as played.
docs/sid.md: how a document becomes a .sid, and the tests that check it.
1 maintainer
Metadata
1 maintainer
Release files for unitracker-player 0.9.0
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