I'm curious what it would do with this prompt:
Write a pipelined parallel Viterbi decoder in vhdl with a 64-bit wide input and a 64-bit wide output. Use constraint length 7, rate 1/6. Use generator polynomials: 0O175, 0O171, 0O151, 0O133, 0O127, 0O117.
GPT 3 produces nothing but crap.