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All about PIC microcontrollers

Within these pages, you can find many useful pieces of code mostly in assembly for the Microchip PIC micro controller family. A lot of people have spend many hours trying to put the bits and bytes together. If the code is NOT written by a member of the PCB Heaven community, then a link will be added above the code with the original website that this code was found.
Because the code is copied to our servers, you should know that:

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We would personally like to send the credits to all the people that managed to write some very interesting code and publish it, and special thanx to the people that originally hosted those code snippets and gave us the permission to copy them.


View code
General Purpose
Author: Dmitry Kiryashov
This code was originally located @ http://www.piclist.com


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; inc
incf count0,f
skpnz
incf count1,f
skpnz
incf count2,f
;... {repeat the last two lines for as wide a counter as is needed}
; w is unchanged.
; Status:Z is 1 if and only if counter is now all zeros.
; rest of Status unchanged.

;from Dmitry Kiryashov
;inc
movlw 1
addwf count0,F
skpnc
addwf count1,F
;... {ed: repeat the last two lines for as wide a counter as is needed}
; w is now 1
; Status:Z and Status:C are 1 if and only if counter is now all zeros.

;dec
movlw 1
subwf count0,F
skpc
subwf count1,F
;... {ed: repeat the last two lines for as wide a counter as is needed}
; w is now 1
; Status:C is now 0 if and only if counter rolled over and is now all ones
; Status:Z is set if the least significant byte of the counter is zero
; (not necessarily all bytes !) and in certain other cases.

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