Many DSPs don&#x27;t support byte addressing or arithmetic on 8-bit integers which a huge amount of non-DSP C code relies on. They&#x27;re not exactly friendly to code not written specifically to run on the DSP. (Or C code in general, for that matter - the reason they have saturating addition and other oddball instructions is because it makes a lot of DSP code faster, but there&#x27;s no C representation of any of those things.)