PIC Microcontoller Math Method 8 Bit Square Root

8 Bit Square Root

;********************************************************************** ;by Nikolai Golovchenko ;8 bit SQARE ROOT ;ACCB0 input/output ;TEMPB0, TEMPB1 used for temporary storage ;66 cycles execution time ;20 words of program memory ;3 bytes of RAM ;********************************************************************** Sqrt8 movlw 0x40 movwf TEMPB1 clrf TEMPB0 sqrt8a movf TEMPB1, w iorwf TEMPB0, w subwf ACCB0, w btfsc _C movwf ACCB0 rrf TEMPB0, f movf TEMPB1, w btfsc TEMPB0, 7 iorwf TEMPB0, f bcf TEMPB0, 7 rrf TEMPB1, f rrf TEMPB1, f btfss TEMPB1, 7 goto sqrt8a movf TEMPB0, w movwf ACCB0 return ;********************************************************************** ;Last updated 15Nov99

Questions:

TakeThisOuTnvkrp at yahoo.co.in asks: " which algorithm is used for finding square root. Why 40H is being loaded into W register?" +

file: /Techref/microchip/math/sqrt/sqrt8.htm, 1KB, , updated: 2005/12/11 10:29, local time: 2024/12/26 08:36,

^{3.133.149.244:LOG IN}

©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://linistepper.com/Techref/microchip/math/sqrt/sqrt8.htm"> PIC Microcontoller Math Method 8 Bit Square Root</A>