please dont rip this site

PIC Microcontoller Subtraction Math Method

16 bit subtraction with borrow

  Rudy Wieser

; 16-bit Subtraction-with-Borrow
;       SourceH:SourceL - Number to be subtracted
;       Carry - NOT( Borrow to be subtracted )
;       DestH:DestL - Number to be subtracted FROM
;Out    DestH:DestL - Result
;       Carry - NOT( Borrow result)

        movf    SourceL,W
        subwf   DestL
        movf    SourceH,W
        btfss   STATUS,C
        incfsz  SourceH,W
        subwf   DestH           ;dest = dest - source, WITH VALID CARRY
                                ;(although the Z flag is not valid).



file: /Techref/microchip/math/sub/16bb.htm, 2KB, , updated: 2019/9/18 11:49, local time: 2024/7/23 22:45,

 ©2024 These pages are served without commercial sponsorship. (No popup ads, etc...).Bandwidth abuse increases hosting cost forcing sponsorship or shutdown. This server aggressively defends against automated copying for any reason including offline viewing, duplication, etc... Please respect this requirement and DO NOT RIP THIS SITE. Questions?
Please DO link to this page! Digg it! / MAKE!

<A HREF=""> PIC Microcontoller Math Method 16 bit subtraction with borrow</A>

After you find an appropriate page, you are invited to your to this massmind site! (posts will be visible only to you before review) Just type a nice message (short messages are blocked as spam) in the box and press the Post button. (HTML welcomed, but not the <A tag: Instead, use the link box to link to another page. A tutorial is available Members can login to post directly, become page editors, and be credited for their posts.

Link? Put it here: 
if you want a response, please enter your email address: 
Attn spammers: All posts are reviewed before being made visible to anyone other than the poster.
Did you find what you needed?


Welcome to!


Welcome to!