search

shonumi / gbe-plus

DMG/GBC/GBA emulator and experimental NDS emulator.
GNU General Public License v2.0
530 stars 80 forks source link

GBC game Star Wars Ep I - Obi-Wan's Adventures not playable #133

Closed mkwong98 closed 2 years ago

mkwong98 commented 2 years ago

The emulator shows a white screen.

shonumi commented 2 years ago

Thanks for the heads up! This actually does work in GBE+ if you use the GBC Boot ROM. Without using it, however, it hangs on a white screen. Looks like some memory isn't initialized properly.

shonumi commented 2 years ago

Found the source of the problem. 0xFF55 was zero, which does not accurately reflect its post-boot value.

I'll have to add a bunch of GBC-specific post-boot values to the code soon.