PROBLEM WITH I64 LabVIEW 8.6

[dca]

Hi,

Strange behavior in LabVIEW 8.6.
The result of my subtraction (I64) with a matrix is false.
If I visualize the matrix subtraction before it becomes good.

(see jpg or vi)

Can anyone help me?

Thank you.

CAIOLA Didier

[JÞB]

Bug- Deffinately

• Opened in 2009- correct function
• opened in 8.6.1- bug observed
• saved for 8.5.1- bug observed
• saved for 8.20- Bug observed
• Replaced all functions- bug observed
• Swapped subtrahend and sutractor - bug observed

Bug related to the subtrahend in quad 2d instance of subtract I64 & U64 does not follow to I/U32

Message Edited by Jeff Bohrer on 01-26-2010 10:47 AM

[RavensFan]

Very interesting.

I can confirm I see the behavior in LV 8.6.  And I don't see it in LV2009f2.  I do see the behavior in LV 8.2.1 and 8.5.1.

I would suspect something to do with buffer allocations.  But when I looked at the buffer allocations in LV2009 and LV8.6, the dots showed up in all the same places.

[JÞB]

seen in 8.0 as well-

(7.1 and earlier do not support quad ints )

Subtract is not in the list of changed or modified vi's in the 2009 help

Message Edited by Jeff Bohrer on 01-26-2010 10:55 AM

[RavensFan]

Look at this link and search for 134607

http://zone.ni.com/devzone/cda/tut/p/id/9510

The description of that bug fixed in LV2009 seems very similar to this situation.

Also look here. http://zone.ni.com/devzone/cda/tut/p/id/7324#134607_by_Category

Maybe fixing that bug essentially fixed the bug you are seeing.

[JÞB]

Good eye Ravens