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      1 /* $NetBSD: reg.h,v 1.5 2012/02/06 02:14:13 matt Exp $ */
      2 
      3 /*
      4  * Copyright (c) 1994, 1995 Carnegie-Mellon University.
      5  * All rights reserved.
      6  *
      7  * Author: Chris G. Demetriou
      8  *
      9  * Permission to use, copy, modify and distribute this software and
     10  * its documentation is hereby granted, provided that both the copyright
     11  * notice and this permission notice appear in all copies of the
     12  * software, derivative works or modified versions, and any portions
     13  * thereof, and that both notices appear in supporting documentation.
     14  *
     15  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
     16  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
     17  * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
     18  *
     19  * Carnegie Mellon requests users of this software to return to
     20  *
     21  *  Software Distribution Coordinator  or  Software.Distribution (at) CS.CMU.EDU
     22  *  School of Computer Science
     23  *  Carnegie Mellon University
     24  *  Pittsburgh PA 15213-3890
     25  *
     26  * any improvements or extensions that they make and grant Carnegie the
     27  * rights to redistribute these changes.
     28  */
     29 
     30 #ifndef _ALPHA_REG_H_
     31 #define	_ALPHA_REG_H_
     32 
     33 /*
     34  * XXX where did this info come from?
     35  */
     36 
     37 /*
     38  * Struct reg, used for procfs and in signal contexts
     39  * Note that in signal contexts, it's represented as an array.
     40  * That array has to look exactly like 'struct reg' though.
     41  */
     42 #define	R_V0	0
     43 #define	R_T0	1
     44 #define	R_T1	2
     45 #define	R_T2	3
     46 #define	R_T3	4
     47 #define	R_T4	5
     48 #define	R_T5	6
     49 #define	R_T6	7
     50 #define	R_T7	8
     51 #define	R_S0	9
     52 #define	R_S1	10
     53 #define	R_S2	11
     54 #define	R_S3	12
     55 #define	R_S4	13
     56 #define	R_S5	14
     57 #define	R_S6	15
     58 #define	R_A0	16
     59 #define	R_A1	17
     60 #define	R_A2	18
     61 #define	R_A3	19
     62 #define	R_A4	20
     63 #define	R_A5	21
     64 #define	R_T8	22
     65 #define	R_T9	23
     66 #define	R_T10	24
     67 #define	R_T11	25
     68 #define	R_RA	26
     69 #define	R_T12	27
     70 #define	R_AT	28
     71 #define	R_GP	29
     72 #define	R_SP	30
     73 #define	R_ZERO	31
     74 
     75 struct reg {
     76 	uint64_t	r_regs[32];
     77 };
     78 
     79 /*
     80  * Floating point unit state. (also, register set used for ptrace.)
     81  *
     82  * The floating point registers for a process, saved only when
     83  * necessary.
     84  *
     85  * Note that in signal contexts, it's represented as an array.
     86  * That array has to look exactly like 'struct reg' though.
     87  */
     88 struct fpreg {
     89 	uint64_t	fpr_regs[32];
     90 	uint64_t	fpr_cr;
     91 };
     92 
     93 #ifdef _KERNEL
     94 void	restorefpstate(struct fpreg *);
     95 void	savefpstate(struct fpreg *);
     96 #endif
     97 
     98 #endif /* _ALPHA_REG_H_ */
     99