Parallel checking multiple hall sensor changes

Using Arduino Programming Questions
1

As title say;

Is it possible to check multiple hall sensors change at the same time?

I now check every sensor sequentially in a loop, but by the time it checks the 5th if at the mean time some changes are happening at the 4th I will miss that initial value change and just pick up later again.

Bad drawn image explains it. The red lines show what sensor gets checked in time, but I want to know the orange line, and not the green as is happening now.

loop.png

2

You can read the state of multiple digital input pins at the same time using direct port manipulation

Google will find you examples

3

UKHeliBob:
You can read the state of multiple digital input pins at the same time using direct port manipulation

Google will find you examples

But I need the analogue signal...

4

But I need the analogue signal...

Then you can't read several at the same time. All you can do using an Arduino is to read them sequentially as fast as possible.