private static function cbopcode8(Core $core)
{
$core->FCarry = ($core->registerB & 0x1) == 0x1;
$core->registerB = ($core->FCarry ? 0x80 : 0) + ($core->registerB >> 1);
$core->FHalfCarry = $core->FSubtract = false;
$core->FZero = $core->registerB == 0;
}