// Convert 0000bbb0 ggg0rrr0 0000bbb0 ggg0rrr0
// to 00000000 rrr00000 ggg00000 bbb00000 ...
// TODO: rm when gp2x/emu.c is no longer used
// Convert 0000bbb0 ggg0rrr0 0000bbb0 ggg0rrr0
// to 00000000 rrr00000 ggg00000 bbb00000 ...
// TODO: rm when gp2x/emu.c is no longer used