Over at Wiibrew Rako is porting the pc9801 emulator to the Nintendo Wii, heres the release notes:

This emulator is a port to Wii of NP2 (Neko Project II), NEC PC-9801 emulator, programmed by Yui. The policy of this port is the minumum change. You must not ask Yui about this wii version.

Brief Change Log
Sep. 1, 2009 ver.
Initial release

Download Here (17mb)