EMU_CHAN_DSL
emu_wrptr(sc, ch, EMU_CHAN_DSL, 0x10);
emu_wrptr(sc, v->vnum, EMU_CHAN_DSL, ea | (y << 24));
emu_wrptr(sc, v->vnum, EMU_CHAN_DSL, v->ea | (v->amounts[3] << 24));
emu_wrptr(sc, ch, EMU_CHAN_DSL, 0x10);
#define EMU_CHAN_DSL_FXSENDAMOUNT_D EMU_MKSUBREG(8, 24, EMU_CHAN_DSL)
#define EMU_CHAN_DSL_LOOPENDADDR EMU_MKSUBREG(24, 0, EMU_CHAN_DSL)