xsu_fill
xsu_fill(&fpu, hwsup, seed);
xsu_fill(&fpu, hwsup, seed);
xsu_fill(&to_set, hwsup, start);
xsu_fill(&init_set, hwsup, start);
xsu_fill(&override, hwsup, start + INT_MAX);
xsu_fill(&init_vals, hwsup, start);
xsu_fill(&signal_vals, hwsup, start + INT_MAX);
xsu_fill(&mk_fpu, hwsup, start);
xsu_fill(&orig_fpu, hwsup, start + INT_MAX);
xsu_fill(&fpu, hwsup, (uint32_t)ul);
extern void xsu_fill(xsu_fpu_t *, uint32_t, uint32_t);