[MAME 2010] z80daisy_call_reti_device:

Hi all, I implement a front end to load mame 2010. It can play some roms. But some roms will throw out some warning message like below. " [MAME 2010] z80daisy_call_reti_device: failed to find an device to reti!"

Does any one have any idea what happen when libretro throw this message? How do I solve it?

Thanks a lot

Pogo