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      1 /*	$NetBSD: reg.h,v 1.21 2019/10/27 09:38:09 rin Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1988 University of Utah.
      5  * Copyright (c) 1982, 1986, 1990 The Regents of the University of California.
      6  * All rights reserved.
      7  *
      8  * This code is derived from software contributed to Berkeley by
      9  * the Systems Programming Group of the University of Utah Computer
     10  * Science Department.
     11  *
     12  * Redistribution and use in source and binary forms, with or without
     13  * modification, are permitted provided that the following conditions
     14  * are met:
     15  * 1. Redistributions of source code must retain the above copyright
     16  *    notice, this list of conditions and the following disclaimer.
     17  * 2. Redistributions in binary form must reproduce the above copyright
     18  *    notice, this list of conditions and the following disclaimer in the
     19  *    documentation and/or other materials provided with the distribution.
     20  * 3. Neither the name of the University nor the names of its contributors
     21  *    may be used to endorse or promote products derived from this software
     22  *    without specific prior written permission.
     23  *
     24  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     25  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     27  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     29  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     30  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     31  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     32  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     33  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     34  * SUCH DAMAGE.
     35  *
     36  * from: Utah Hdr: reg.h 1.1 90/07/09
     37  *
     38  *	@(#)reg.h	7.2 (Berkeley) 11/3/90
     39  */
     40 
     41 #ifndef _M68K_REG_H_
     42 #define _M68K_REG_H_
     43 
     44 /*
     45  * Register set accessible via /proc/$pid/reg and ptrace()
     46  */
     47 struct reg {
     48 	int	r_regs[16];	/* D0-D7/A0-A7 */
     49 	int	r_sr;
     50 	int	r_pc;
     51 };
     52 
     53 struct fpreg {
     54 	int	r_regs[8*3];	/* FP0-FP7 */
     55 	int	r_fpcr;
     56 	int	r_fpsr;
     57 	int	r_fpiar;
     58 };
     59 
     60 #if defined(_KERNEL) || defined(_STANDALONE)
     61 
     62 /* XXXX this is historical (but it can't be deprecated quite yet) */
     63 /*
     64  * Location of the users' stored
     65  * registers relative to D0.
     66  * Usage is u.u_ar0[XX].
     67  */
     68 #define	D0	(0)
     69 #define	D1	(1)
     70 #define	D2	(2)
     71 #define	D3	(3)
     72 #define	D4	(4)
     73 #define	D5	(5)
     74 #define	D6	(6)
     75 #define	D7	(7)
     76 #define	A0	(8)
     77 #define	A1	(9)
     78 #define	A2	(10)
     79 #define	A3	(11)
     80 #define	A4	(12)
     81 #define	A5	(13)
     82 #define	A6	(14)
     83 #define	A7	(15)
     84 
     85 #define	FP	A6
     86 #define	SP	A7
     87 #define	PS	(16)
     88 #define	PC	(17)
     89 
     90 /*
     91  * Due to a mental lapse somewhere down the line, wait returns its values
     92  * in strange registers.  Kludge it up here so we don't have to in the
     93  * machine-independent code.
     94  */
     95 #define	R0	D1
     96 #define	R1	A0
     97 
     98 #endif /* _KERNEL || _STANDALONE */
     99 
    100 #ifdef _KERNEL
    101 
    102 struct lwp;
    103 int	process_read_regs(struct lwp *, struct reg *);
    104 int	process_read_fpregs(struct lwp *, struct fpreg *, size_t *);
    105 
    106 #endif /* _KERNEL */
    107 
    108 #endif /* !_M68K_REG_H_ */
    109