Synopsis

int __smlad(int16x2 val1,
            int16x2 val2,
            int val3);

Description

__smlad inserts a SMLAD instruction. __smlad returns the 16-bit signed equivalent of

• res = val1[0] * val2[0] + val1[1] * val2[1] + val3
  
  where [0] is the lower 16 bits and [1] is the upper 16 bits. This operation sets the Q flag if overflow occurs on the addition.