usr/src/usr.bin/gprof/vax.h

/*
 * Copyright (c) 1983 Regents of the University of California.
 * All rights reserved.
 *
 * %sccs.include.redist.c%
 *
 *      @(#)vax.h       5.4 (Berkeley) %G%
 */

    /*
     *  opcode of the `calls' instruction
     */
#define CALLS   0xfb

    /*
     *  offset (in bytes) of the code from the entry address of a routine.
     *  (see asgnsamples for use and explanation.)
     */
#define OFFSET_OF_CODE  2
#define UNITS_TO_CODE   (OFFSET_OF_CODE / sizeof(UNIT))

    /*
     *  register for pc relative addressing
     */
#define PC      0xf

enum opermodes {
    literal, indexed, reg, regdef, autodec, autoinc, autoincdef,
    bytedisp, bytedispdef, worddisp, worddispdef, longdisp, longdispdef,
    immediate, absolute, byterel, bytereldef, wordrel, wordreldef,
    longrel, longreldef
};
typedef enum opermodes  operandenum;

struct modebyte {
    unsigned int        regfield:4;
    unsigned int        modefield:4;
};