This intrinsic inserts a UQADD16 instruction into the instruction stream generated by the compiler. It enables you to perform two unsigned 16-bit integer additions, saturating the results to the 16-bit unsigned integer range 0 ≤ x ≤ 2¹⁶ - 1.

unsigned int __uqadd16(unsigned int val1, unsigned int val2)

Where:

The __uqadd16 intrinsic returns:

The results are saturated to the 16-bit unsigned integer range 0 ≤ x ≤ 2¹⁶ - 1.

Example:

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

    res = __uqadd16(val1,val2); /* res[15:0] = val1[15:0] + val2[15:0]
                                   res[31:16] = val1[31:16] + val2[31:16]
                                 */
    return res;
}