> Thanks for all the replies. But when I enter the value in, it does not
> change(during debug mode), it reset again to 0 when I press enter.
> I had downloaded MPLAB about a month ago.

When you say "debug mode" do you mean you are using the simulator? If so
then you can apply the equivalent of an input signal by using a stimulus
file that you write with a text editor. Search for "stimulus" in the help
files and you will find information on how to format the file.

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