bit_test

[aaronik19]

Can someone please help me to understand the bit_test function because I can't understand it? I want to create a push button control and after 5 seconds that the user keep the button pressed, an action will be executed. The description that I found on the CCS C manual is this:

Tests the specified bit (0-7,0-15 or 0-31) in the given variable. The least significant bit is 0. This function is much more efficient than, but otherwise similar to: ((var & (1<<bit)) != 0)

Thanks for your help. I am assuming that the other similar function like bit_clear(), bit_set() use the similar structure.

[asmboy]

In any variable or register that can be defined with the #DEFINE statement - this lets you logically test each bit. If it is a '1' the bit_test() of that bit number is true , else it is false.

So if you were to do this for say the 16f887: