^^ binary operator in basic stamp

dorad

We need to mantain an old *.bas file (BASIC stamp) which worked before.
it contains the following line:

if (x^^y) then

We don't know what is the meaning of "^^" binary operator. The person who wrote it doesn't remember also. we know that a single "^" is XOR and that "^/" is XNOR. It's quite complicated to try to test it on the board.

microcontrolleruser

Hi

Download the Basic Stamp Editor and look in Help section.

or

Look in the What' a Microcontroller .PDF book.

https://www.parallax.com/sites/default/files/downloads/28123-Whats-a-Micro-v3.0.pdf

dorad

I have look in both. couldn't find the "^^"

Mike Green

"^^" is not a valid operator in PBasic. It would not have compiled or run that way in the past.

Publison

Maybe a cut-paste error in some documentation?

Posting the code may help fix the error.

tomcrawford

In fortran, x**y indicates exponentiation. But note: it is in a if/then statement. Try each valid case (<>, <=, >=, etc) and see if any work.

David Betz

tomcrawford wrote: »

In fortran, x**y indicates exponentiation. But note: it is in a if/then statement. Try each valid case (<>, <=, >=, etc) and see if any work.

Maybe it's the '<>' operator where the characters have fallen over?

tomcrawford

David Betz wrote: »

tomcrawford wrote: »

In fortran, x**y indicates exponentiation. But note: it is in a if/then statement. Try each valid case (<>, <=, >=, etc) and see if any work.

Maybe it's the '<>' operator where the characters have fallen over?

They would have to have been blown apart since they fell different directions.

Hal Albach

Maybe it's a bug with its wings folded back?

Genetix

dorad,

What does your program do and how old is it?

Is there another copy of the program or an old print-out?

kwinn

tomcrawford wrote: »

David Betz wrote: »

tomcrawford wrote: »

In fortran, x**y indicates exponentiation. But note: it is in a if/then statement. Try each valid case (<>, <=, >=, etc) and see if any work.

Maybe it's the '<>' operator where the characters have fallen over?

They would have to have been blown apart since they fell different directions.

No no no, they were leaning on each other, then they fell in opposite directions.

Phil Pilgrim (PhiPi)

dorad,

Please post the rest of the program. Maybe we can figure out what's supposed to be there from the context.

-Phil

dorad

Thanks all,
It was a logical XOR.