Make 'Ys I & II Eternal Story' able to boot.
Posted on 2005-12-11 00:00:00
Tidied up the OS stuff a lot and added basic threads support with semaphore wait and signal. Even with that, it doesn't make the main thread go to a different place.

Tomorrow, I'll work on tidying the current interrupt handling stuff (implement RemoveDmacHandler, DisableDmac) and add support for the vertical retrace interrupt. This should allow it to go a bit further.