usr/src/sys/hp300/include/reg.h

/*
 * Copyright (c) 1988 University of Utah.
 * Copyright (c) 1982, 1986, 1990 The Regents of the University of California.
 * All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * the Systems Programming Group of the University of Utah Computer
 * Science Department.
 *
 * %sccs.include.redist.c%
 *
 * from: Utah $Hdr: reg.h 1.1 90/07/09$
 *
 *      @(#)reg.h       7.2 (Berkeley) %G%
 */

/*
 * Location of the users' stored
 * registers relative to D0.
 * Usage is u.u_ar0[XX].
 */
#define D0      (0)
#define D1      (1)
#define D2      (2)
#define D3      (3)
#define D4      (4)
#define D5      (5)
#define D6      (6)
#define D7      (7)
#define A0      (8)
#define A1      (9)
#define A2      (10)
#define A3      (11)
#define A4      (12)
#define A5      (13)
#define A6      (14)
#define A7      (15)

#define SP      A7
#define PC      (17)
#define PS      (16)

#ifdef IPCREG
#define NIPCREG 17
int ipcreg[NIPCREG] =
        {D0,D1,D2,D3,D4,D5,D6,D7,A0,A1,A2,A3,A4,A5,A6,A7,PC};
#endif

#ifdef KERNEL
/*
 * Due to a mental lapse somewhere down the line, wait returns its values
 * in strange registers.  Kludge it up here so we don't have to in the
 * machine-independent code.
 */
#define R0      D1
#define R1      A0
#endif