EMU_CHAN_ATKHLDV
emu_wrptr(sc, ch, EMU_CHAN_ATKHLDV, 0);
emu_wrptr(sc, v->vnum, EMU_CHAN_ATKHLDV,
emu_wrptr(sc, v->vnum, EMU_CHAN_ATKHLDV, EMU_CHAN_ATKHLDV_HOLDTIME_MASK | EMU_CHAN_ATKHLDV_ATTACKTIME_MASK);
emu_wrptr(sc, ch, EMU_CHAN_ATKHLDV, 0);