Disconnects the serial device if any is connected, else, nothing is done

return true, if this is the last draw in the current scanline, and mode 0 is being activated

Ending stuff for mode 3

Gets the tile number, BgAttribute for that tile, and its y position because the y position is different if we are drawing a window or normal backgroun

The cartridge file path.

Mixes the two pixels (sprite and background) and outputs the correct color, mixing here does not mean using the two pixels and output something in the

returns `true` if the app should close

return `ture` if the printer should be disconnected (closed)

determines if the next frame sequencer clock is going to include clocking the length counter

Loads the whole state of the emulator, if an error happened in the middle the emulator will keep functioning like normal, as it stores a backup recove

return `true` if the file is loaded, `false` otherwize in case of no errors

In some cases inc/dec and a read might happen in the same cycle. In this case, a strange behaviour occur: - This corruption will not happen if the acc

The data in ram are stored as normal tiles, every 16 bytes form one tile (8x8). Every 16 * 20 bytes form one tile row (160x8).

0xA000-0xBFFF

0x0000-0x3FFF

TODO: implement mapper 0x4000-0x7FFF