I added a linkcable emulator to a gameboy emulator: https://github.com/maxbit89/GBEmulator
The link cable is implemented in https://github.com/maxbit89/GBEmulator/blob/master/serial2sock.c
The main thing is i don't shift SB(0xff01) i just swap it and when the transfer is done i clear the SC flags (0xff02) and trigger the Serial interrupt 0x58. (Technically i think it should be equal to shift and trigger interrupt.)
I used the comm.c example from gbdev. (https://github.com/maxbit89/GBEmulator/blob/master/test/roms/free/linkcable.gb) The Example works fine. But when i start Tetris with my implementation the game menue works fine (Selections are shown in both instances) But when the game is started the game freezes and is hang up in a loop.
The emulator can be started to test like this:
GBemulator instance 1:
./GBemulator Tetris.gb -l 8008
GBemulator instance 2:
./GBemulator Tetris.gb -c 127.0.0.1 8008
Note: The Current source isn't compiling in Windows(MinGW) because i didn't implement winsock. (Code is Testet with Debian Buster)
Can some one tell me why Tetris is behaving like this?
