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Hi all

How come when you do a "AND" , "OR" , "EOR" when the results is a zero the Z
flag is set
when the result of most significant bit is a 1 then flags S and N are set.
Now there is no "how come" on the about information, it is all very logical.

The "how come" question comes that when you look at the data sheet
(ATmega32) they say flags Z,N,V could be set by the result, (note there is
no mention of flag S)

How come I get flag S to be set and I can not set flag V?
(??? why would you want the "Two's complement overflow indicator" set with
"AND" , "OR" , "EOR" instructions?? )
Am I doing the wrong logic?

Have a great time.
Footnote on status flags reminder:
N is Negative
S is Signed
V is Two's complement overflow indicator
Z is Zero

----- Original Message -----
From: Dave Hylands

So which data sheet? what page?





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