PPT Slide

Word-Wide Optimization in C

• Access 32-bit data by declaring data as 32-bit type

• Perform numerical operations using intrinsics

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Beyond the use of intrinsics, we can also use word-wide optimizations to enhance performance.

In word-wide optimizations, since we have the ability to load 32-bit values, we can access 32-bit data by declaring the data as a 32-bit type.

In our C code before, we were calling them shorts; they were 16 bits, bringing them in 16 at a time. But the external bus is 32 bits, so we can take advantage of that by loading words, then performing the numerical operations using the intrinsics _MPY and _MPYH.