I modified an Win32 edition of PicoDrive by adding SaveState and LoadState.
We can also change the Stateslot by keypress.
NOTICE: You need to add directory "[ROMDir]/srm" first. The State file will saved into this path.
I also use a console to show the message.
redefine the keys of GamePad:
W S A D - Up Down Left Right
A B C - J K L
X Y Z - U I O
Start Mode - C V
Keys for function:
Load Roms - Escape
Reset Game - Tab
SaveState - F5
LoadState - F8
Stateslot Plus - F6
Stateslot Minus - F7
Have fun!!