Systems, apparatuses, and methods for addition of partial products

A machine-readable storage medium having program code stored thereon which, when compiled by a machine, causes the machine to generate one or more instructions, the machine to:

• fetch the one or more instructions, the one or more instructions to indicate a first source vector comprising a first plurality of integer data elements, a second source vector comprising a second plurality of integer data elements, and one or more accumulation integer data elements, wherein each of the one or more accumulation integer data elements is four times larger than each data element of the first plurality of integer data elements and the second plurality of integer data elements, and wherein the first plurality of integer data elements and the one or more accumulation integer data elements are signed integer data elements and the second plurality of integer data elements are unsigned integer data elements;
• execute the one or more instructions to perform operations, comprising:
• reading the first plurality of integer data elements, the second plurality of integer data elements, and the one or more accumulation integer data elements from an on-chip storage;
• and
• multiplying each data element of the first plurality of integer data elements with a corresponding data element of the second plurality of integer data elements to generate a plurality of products, and
• accumulating the plurality of products in groups of four, each group of four products to be accumulated with a corresponding accumulation integer data element of the one or more accumulation integer data elements with saturation to generate a corresponding one or more result integer data elements.