ref: 80fdafd1d6bc27d7a94fabc12f4af37285a17338
dir: /sys/src/games/music/debug.h/
extern int debug; enum { DBGSERVER = 0x01, DBGCONTROL = 0x02, DBGCTLGRP = 0x04, DBGPICKLE = 0x08, DBGSTATE = 0x10, DBGPLAY = 0x20, DBGPUMP = 0x40, DBGTHREAD = 0x80, DBGFILEDUMP = 0x100, };