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From: OnlyOne on 6 May 2008 05:10
Hello, i think i have an easy problem but i dont get the solution.What is want to do is a vi with this parameters:Input: current-value (U32)BitNumber (0..31)State (Bool)Output: new-value (U32)for example ifcurrent-value = 00000000 00000000 00000000 00000111 (binary)BitNumber = 2 (dez)State = FalseThen the new-value should be: 00000000 00000000 00000000 00000011 (binary)With same parameters and State = True the new-value is unchanged because ithe bit is already true.How do i do this?Thanks
From: MikeS81 on 6 May 2008 05:10
Hi OnlyOne,
here is one solution for you.
<img src="http://forums.ni.com/attachments/ni/170/321288/1/Unbenannt1.PNG"></a>
MikeMessage Edited by MikeS81 on 05-06-2008 11:06 AM


Unbenannt1.PNG:
http://forums.ni.com/attachments/ni/170/321288/1/Unbenannt1.PNG
From: daveTW on 6 May 2008 05:40
Hi,this is a nice problem. Hope this helps<img src="http://forums.ni.com/attachments/ni/170/321291/1/set%20bit%20in%20U32.png"> greets, DaveP.S. Mike, it's hard to beat you :smileyvery-happy:Message Edited by daveTW on 05-06-2008 11:12 AM


set bit in U32.png:
http://forums.ni.com/attachments/ni/170/321291/1/set bit in U32.png


set bit in U32.vi:
http://forums.ni.com/attachments/ni/170/321291/2/set bit in U32.vi
From: Norbert B on 6 May 2008 05:40
daveTW wrote:P.S. Mike, it's hard to beat you :smileyvery-happy:But i will try it with a perharps more generic solution since you can mask more bits at a time:<img src="http://forums.ni.com/attachments/ni/170/321292/1/Numbermasking.JPG"> hope this helps,NorbertMessage Edited by Norbert B on 05-06-2008 04:18 AM


Numbermasking.JPG:
http://forums.ni.com/attachments/ni/170/321292/1/Numbermasking.JPG
From: OnlyOne on 6 May 2008 05:40
Hi Mike, thank you for your fast answer.I was always trying to solve it like Dave and didnt think about the way that you did it (which is much easier to understand).thx
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