It has always been possible to use an fpga and program it like a cpu and it's software. In other words the chip can be loaded to look like another chip when sw

It has always been possible to use an fpga and program it like a cpu and it's software. In other words the chip can be loaded to look like another chip when switching "apps". This post shows a clever use for this. They can load in different old CPUs as needed. This trick was done in a video processor long ago. An fpga was loaded with a different hardware accelerator for each video transition only when the transition was needed. That was the good-old days when video had crazy wipes and dissolves way too often. Thank goodness those days are gone.