NPAGSEG
int pmeg[NKSEG][NPAGSEG];
int pmeg[NKSEG][NPAGSEG];
nvp = NPMEG * NPAGSEG;
sme = (off / (NPAGSEG * sizeof(*pt))); /* PMEG to start on */
sme + (PAGE_SIZE / (NPAGSEG * sizeof(*pt))); /* where to stop */
nvp = NPMEG * NPAGSEG;