PADSTART
lobj.rl_padstart = PADSTART(&rmap);
lobj.rl_padend = PADSTART(&rmap) + PADIMLEN(&rmap);
PADSTART(nlmp) = (ulong_t)fpmpp->mr_addr;
PADSTART(nlmp) = (ulong_t)hmpp->mr_addr;
PADSTART(rlmp) = (ulong_t)mpp[0].mr_addr;
PADSTART(mlmp) = (ulong_t)fmpp->mr_addr;