First post, by carlostex
i made a small program to effectively change the port for the MPU-401 on Lost Vikings. Doing so in the SETUP program actually does nothing, so my program actually patches the Miles driver inside the big DATA.DAT file.
Take notice that when you change the port it will also change for MT-32. If you select MT-32 on the setup it will try to run the game in whatever address was patched on the Miles driver. So use the program to put it back to 330h.
EDIT: New version, allows for user input rather than choice of ports: