I would recommend one or two books: Easy Pic'n, Pic up the Pace, both by
David Benson.  These are excellent books for the 16F84 even if you have
experience with other processors or uP languages.

If you just want to know about the 16F84 instruction, the data sheet
actually has an example of how each instruction will affect data.  For
Example

ADDLW   Add literal and W
--------------------------------------
Ex.     ADDLW 0x15
        Before instruction
                W=0x10
        After instruction
                W=0x25

The data book can be very helpful (sometimes).

"Saulius L." wrote:
>
> Helo,
>  could somebody write about 16f84 commands?

--
Jason
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E-Mail:  milsumai@execpc.com
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