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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



Stef Says: " Increment of "var+1" must be done only if
incf var
result IS zero. So, incfsz will not work.
" +

file: /Techref/microchip/math/neg/16bit.htm, 1KB, , updated: 2011/4/21 04:23, local time: 2024/5/18 17:56,

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