GameBoy\Cbopcode::cbopcode54 PHP Méthode

    private static function cbopcode54(Core $core)
    {
        $temp_var = $core->memoryRead($core->registersHL);
        $temp_var = (($temp_var & 0xf) << 4) + ($temp_var >> 4);
        $core->memoryWrite($core->registersHL, $temp_var);
        $core->FZero = $temp_var == 0;
        $core->FCarry = $core->FHalfCarry = $core->FSubtract = false;
    }