ss_get_value
int ss_get_value(struct proc *p, vaddr_t addr, u_int *value);
error = ss_get_value(p, p->p_md.md_bpva, &p->p_md.md_bpsave[0]);
error = ss_get_value(p, p->p_md.md_bpva + 4, &p->p_md.md_bpsave[1]);
int ss_get_value(struct proc *, vaddr_t, u_int *);
if ((rc = ss_get_value(p, va, bpsave)) != 0)
if ((rc = ss_get_value(p, pc, &instr)) != 0)