B4J Question want to get the high byte and the low byte of an int in two seprate byte ?

Pietro Pancino · Jul 27, 2020

Hi all,
I'm sure it's very simple but I'stuck!

Is there a way to simply copy the hight byte of a short in a byte and the low byte o a short into an another byte.
short = 0xff04
---> hbyte = 0xff
---> lbyte = 0x04

Pietro

Erel · Jul 27, 2020

B4X:

Dim s As Short = 0xff04
Dim l As Byte = Bit.And(0x00ff, s)
Dim h As Byte = Bit.ShiftRight(s, 8)
'if you want unsigned values:
Dim ul As Int = Bit.And(0x00ff, s)
Dim uh As Int = Bit.And(0x00ff, Bit.ShiftRight(s, 8))
Log(ul)
Log(uh)

Pietro Pancino · Jul 27, 2020

Thank you Erel, it's working !
Many thanks

Erel · Jul 27, 2020

emexes said:
You sure about those 16s?

?
You are correct. It should be 8. Will fix it.

emexes said:
Also, why the different shifts?

Both will work the same in this case.

Pietro Pancino · Jul 27, 2020

I used the first method, great it's resolved!

B4J Question want to get the high byte and the low byte of an int in two seprate byte ?

Pietro Pancino

Member

Erel

B4X founder

Pietro Pancino

Member

Erel

B4X founder

Pietro Pancino

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