This intrinsic inserts a UHASX instruction into the instruction stream generated by the compiler. It enables you to exchange the halfwords of the second operand, add the high halfwords and subtract the low halfwords, halving the results.

unsigned int __uhasx(unsigned int val1, unsigned int val2)

where:

The __uhasx intrinsic returns:

Example:

unsigned int exchange_add_subtract(unsigned int val1, unsigned int val2)
{
  unsigned int res;

    res = __uhasx(val1,val2); /* res[15:0] = (val1[15:0] - val2[31:16]) >> 1
                                 res[31:16] = (val1[31:16] + val2[15:0]) >> 1
                                */
    return res;
}