Except the GBC emulator's source got lost and it wasn't a real Z80 anyway.
Darn! That's a shame. :\
speaking of gbc you said the 83+se and 84+se with 128kb ram could run gbc games with tiboy if you add compatability plaease add it
There's a problem in that the instruction set is a little bit different, and the sprite hardware has to be emulated, so if he added GBC compatibility, it would be really slow. (The GBC has to run at twice the speed as the GB.)
Note that it's not impossible. It's just near impossible.