usr/src/sys/news3400/include/proc.h

/*
 * Copyright (c) 1992 Regents of the University of California.
 * All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * Ralph Campbell.
 *
 * %sccs.include.redist.c%
 *
 *      @(#)proc.h      7.1 (Berkeley) %G%
 */

/*
 * Machine-dependent part of the proc structure for DEC Station.
 */
struct mdproc {
        int     *md_regs;               /* registers on current frame */
        int     md_flags;               /* machine-dependent flags */
        int     md_upte[UPAGES];        /* ptes for mapping u page */
        int     md_ss_addr;             /* single step address for ptrace */
        int     md_ss_instr;            /* single step instruction for ptrace */
};

/* md_flags */
#define MDP_FPUSED      0x0001  /* floating point coprocessor used */
#define MDP_ULTRIX      0x0002  /* ULTRIX process (ULTRIXCOMPAT) */