Slide 84 of 97
Notes:
This list shows variety of intrinsics available on the C6x. The two that we're going to concentrate on for our sum of products are the underscore MPY and the underscore MPYH.
MPY does a 16 by 16 multiply, so it does the 16 lower bits of a register times the 16 lower bits of the register.
MPYH takes the upper 16 bits of the register and multiplies that value by the upper 16 bits of the register. We'll see in a moment how we can take advantage of that in our sum of products example.