#include "pic24_all.h"
#include <stdio.h>

int main (void) {
	 uint16_t inNum=0xDA75, nibSum;
	 uint16_t w0, w1, w2;
	 
	 w0 = inNum;
	 w1 = w0 & 0xF;
	 w0 = w0 >> 4;
	 w2 = w0 & 0xF;
	 nibSum = w2 + w1;
	 
	 w0 = w0 >> 4;
	 w1 = w0 & 0xF;
	 w0 = w0 >> 4;
	 w2 = w0 & 0xF;
	 nibSum = nibSum + w2 + w1;
}