GameBoy Emulator for PSP
Licence is unknown.
Source found here: http://www.mobile-dev.ch/old.php?page=pspsoft_masterboy
21.12.2018: updated sources. 20.12.2018: removed multiple variants of XintN_t typedefs and changed them to XintN_t (X = signednes N=numberofbit) compile error: Error, could not find file MasterBoy.elf