usr/src/sys/h/seg.h

/*
 * Copyright (c) 1982, 1986 Regents of the University of California.
 * All rights reserved.  The Berkeley software License Agreement
 * specifies the terms and conditions for redistribution.
 *
 *      @(#)seg.h       7.1 (Berkeley) 6/4/86
 */

/*
 * Mapper addresses and bits
 */

#define RO      PG_URKR         /* access abilities */
#define RW      PG_UW