how to remove tailing zero in U32

[Valen Li]

Hello,

I am trying to change the format of a U32 number so that all bytes are reversed without tailing zeros, and I am not that familiar with formatting numbers and strings.  Please kindly advise how my VI should be changed to accomplish that.  Thanks a lot for your help.

Valen

-------------------------------------

What I want to achieve:

x12345678 --> x78563412

x123456     --> x563412

x2               -->x 2

My Results:

x12345678 --> x78563412

x123456     --> x56341200

x2               -->x 2000000 

My VI:

U32-->Swap words-->Swap bytes-->U32

----------------------------------------------

[johnsold]

Valen,

1. Convert number to string to byte array.
2. Reshape array to 5X2. (This will handle the largest possible U32 value.)
3. Separate rows.
4. Convert each row to string.
5. Concatenate strings in reverse order.
6. Remove null bytes "\00".
7. Convert back to U32.

I think an easier way exists, but this is what came to mind.

Lynn

[altenbach]

Try this (LabVIEW 7.0) 😄

If course if you only need to convert a single U32 scalar, use the code inside the loop.

Message Edited by altenbach on 07-13-2006 12:23 PM

[altenbach]

Here's a version that is a bit more compact, eliminating the (-1).

Message Edited by altenbach on 07-13-2006 12:56 PM

[Valen Li]

Hello Lynn and Altenbach,

Both solutions works perfect.  I really appreciate your great help, it saves me easily a couple hours of coding time. 

Thanks again,

Valen