EMU8000_PTRX_WRITE
EMU8000_PTRX_WRITE(emu, ch, 0);
EMU8000_PTRX_WRITE(emu, 30, (emu->fm_reverb_depth << 8));
EMU8000_PTRX_WRITE(emu, 31, (emu->fm_reverb_depth << 8));
EMU8000_PTRX_WRITE(emu, ch, 0x40000000);
EMU8000_PTRX_WRITE(hw, ch, 0);
EMU8000_PTRX_WRITE(hw, ch, temp);
EMU8000_PTRX_WRITE(hw, ch, 0);
EMU8000_PTRX_WRITE(hw, ch, temp);