please dont rip this site

PIC Microcontoller Math Method

Two's complemnt of a 32 bit word (4 bytes)

;unknown author, please step forward

        comf    var,f           ;Complement all bytes
        comf    var+1,f
        comf    var+2,f
        comf    var+3,f

        incf    var,f           ;Inc. low byte always
        skpnz                   ;Skip if no carry to higher bytes
        incf    var+1,f         ;Carry to next byte
        skpnz
        incf    var+2,f
        skpnz
        incf    var+3,f


Regulus Berdin says:  This reduces the number of execution cycles if some bytes are zero and called as subroutine.

negate: 
        comf    var,f 
        comf    var+1,f 
        ... 

        incfsz  var,f 
         return 
        incfsz  var+1,f 
         return 
        ... 

        incf    var+N,f 
        return 


file: /Techref/microchip/math/neg/32bit.htm, 1KB, , updated: 2009/2/13 15:44, local time: 2024/10/14 11:50,
TOP NEW HELP FIND: 
3.236.112.101:LOG IN
©2024 PLEASE DON'T RIP! THIS SITE CLOSES OCT 28, 2024 SO LONG AND THANKS FOR ALL THE FISH!

 ©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="http://www.ecomorder.com/techref/microchip/math/neg/32bit.htm"> PIC Math Negate 32 bit</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 ecomorder.com!

 

Welcome to www.ecomorder.com!

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

  .