please dont rip this site

PIC Microcontoller Math Method

24 bit binary addition

From: Dwayne Reid

...here is an example that takes the value in R1H,M,L and adds it to the value contained in AD2H,M,L (result in AD2H,M,L). You should be able to see how to extend it to more than 24 bits.

There is a similar version that does subtraction. I often extend to 40 bits or more - its easier to do this when manipulating integer values than it is to try and figure out which bits I can discard.

;now add new sample
     movfw       R1L              ;
     addwf       AD2L,F          ;LS byte

     movfw       R1M             ;middle byte
     skpnc
       incfsz    R1M,W
         addwf   AD2M,F          ;

     movfw       R1H             ;MS byte
     skpnc
       incfsz    R1H,W
         addwf   AD2H,F          ;




Code:

See also:


file: /Techref/microchip/math/add/24b.htm, 11KB, , updated: 2007/9/24 02:01, local time: 2017/6/24 22:16,
TOP NEW HELP FIND: 
23.20.96.7:LOG IN

 ©2017 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://massmind.org/techref/microchip/math/add/24b.htm"> PIC Microcontoller Math Method </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 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 massmind.org!

 

Welcome to massmind.org!

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

  .