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Tips - Testing a bit with its number in a variable

Here are some tips:

if 4 in PORTA then ... // Equivalent to if PORTA.4 then ...

Also, it may be extended to any variable:

if BitNum in PORTA then ... // Equivalent to if ((1 SHL BitNum) AND PORTA) <> 0 then ...

Isn't it easy?
 


Creation date : 2011.01.13 2:22 PM
Last update : 2013.08.05 11:25 AM
Category : Tips
Page read 4993 times


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Sentence to think about :  Slow and methodical testing like this will eventually get you to a point where you will either be able to spot the bug, or go quietly insane. Maybe both.  Persistence of Vision 2.1 software documentation.
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