IntroEspressif Systems released their ESP32-S3 SoC a few years ago, but only recently have they released more documentation and support of its full capabilities. Without any changes to your code, the S3 runs about 15% faster than older ESP32 CPUs at the same clock speed. It has a 'hidden' capability that's more difficult to use, but can be worth the effort if you need more speed. This article is aimed at programmers who are already familiar with SIMD instructions on other platforms.I've been opt...