GameBoy\Opcode::opcode214 PHP Method

    public static function opcode214(Core $core)
    {
        $temp_var = $core->memoryRead($core->programCounter);
        $dirtySum = $core->registerA - $temp_var;
        $core->FHalfCarry = ($core->registerA & 0xf) < ($temp_var & 0xf);
        $core->FCarry = $dirtySum < 0;
        $core->registerA = $core->unsbtub($dirtySum);
        $core->programCounter = $core->programCounter + 1 & 0xffff;
        $core->FZero = $core->registerA == 0;
        $core->FSubtract = true;
    }