INB_OFF
printk (" %02x", (unsigned)INB_OFF(i));
((char*)&np->regdump)[i] = INB_OFF(i);
#define INB(r) INB_OFF (offsetof(struct ncr_reg,r))
printf(" %02x", (unsigned)INB_OFF(np, i));
#define INB(np, r) INB_OFF(np, offsetof(struct sym_reg, r))