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PIC Microcontoller Math Method


Two's complemnt of a 16 bit word (2 bytes) 

        comf    var,f           ;Complement all bytes
        comf    var+1,f

        incf    var,f           ;Inc. low byte always
        skpnz                   ;Skip if no carry to higher bytes
        incf    var+1,f         ;Carry to next byte

Questions:

file: /techref/microchip/math/neg/16bit.htm, 1KB, , updated: 2007/2/16 09:45, local time: 2009/11/21 14:01,
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