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Annotation of sys/arch/alpha/include/reg.h, Revision 1.1.1.1

1.1       nbrk        1: /*     $OpenBSD: reg.h,v 1.5 2002/03/14 01:26:27 millert Exp $ */
                      2: /*     $NetBSD: reg.h,v 1.2 1995/03/28 18:14:07 jtc Exp $      */
                      3:
                      4: /*
                      5:  * Copyright (c) 1994, 1995 Carnegie-Mellon University.
                      6:  * All rights reserved.
                      7:  *
                      8:  * Author: Chris G. Demetriou
                      9:  *
                     10:  * Permission to use, copy, modify and distribute this software and
                     11:  * its documentation is hereby granted, provided that both the copyright
                     12:  * notice and this permission notice appear in all copies of the
                     13:  * software, derivative works or modified versions, and any portions
                     14:  * thereof, and that both notices appear in supporting documentation.
                     15:  *
                     16:  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
                     17:  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
                     18:  * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
                     19:  *
                     20:  * Carnegie Mellon requests users of this software to return to
                     21:  *
                     22:  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
                     23:  *  School of Computer Science
                     24:  *  Carnegie Mellon University
                     25:  *  Pittsburgh PA 15213-3890
                     26:  *
                     27:  * any improvements or extensions that they make and grant Carnegie the
                     28:  * rights to redistribute these changes.
                     29:  */
                     30:
                     31: #ifndef _ALPHA_REG_H_
                     32: #define        _ALPHA_REG_H_
                     33:
                     34: /*
                     35:  * XXX where did this info come from?
                     36:  */
                     37:
                     38: /*
                     39:  * Struct reg, used for procfs and in signal contexts
                     40:  * Note that in signal contexts, it's represented as an array.
                     41:  * That array has to look exactly like 'struct reg' though.
                     42:  */
                     43: #define        R_V0    0
                     44: #define        R_T0    1
                     45: #define        R_T1    2
                     46: #define        R_T2    3
                     47: #define        R_T3    4
                     48: #define        R_T4    5
                     49: #define        R_T5    6
                     50: #define        R_T6    7
                     51: #define        R_T7    8
                     52: #define        R_S0    9
                     53: #define        R_S1    10
                     54: #define        R_S2    11
                     55: #define        R_S3    12
                     56: #define        R_S4    13
                     57: #define        R_S5    14
                     58: #define        R_S6    15
                     59: #define        R_A0    16
                     60: #define        R_A1    17
                     61: #define        R_A2    18
                     62: #define        R_A3    19
                     63: #define        R_A4    20
                     64: #define        R_A5    21
                     65: #define        R_T8    22
                     66: #define        R_T9    23
                     67: #define        R_T10   24
                     68: #define        R_T11   25
                     69: #define        R_RA    26
                     70: #define        R_T12   27
                     71: #define        R_AT    28
                     72: #define        R_GP    29
                     73: #define        R_SP    30
                     74: #define        R_ZERO  31
                     75:
                     76: struct reg {
                     77:        u_long  r_regs[32];
                     78: };
                     79:
                     80: /*
                     81:  * Floating point unit state. (also, register set used for ptrace.)
                     82:  *
                     83:  * The floating point registers for a process, saved only when
                     84:  * necessary.
                     85:  *
                     86:  * Note that in signal contexts, it's represented as an array.
                     87:  * That array has to look exactly like 'struct reg' though.
                     88:  */
                     89: struct fpreg {
                     90:        u_long  fpr_regs[32];
                     91:        u_long  fpr_cr;
                     92: };
                     93:
                     94: #ifdef _KERNEL
                     95: void   restorefpstate(struct fpreg *);
                     96: void   savefpstate(struct fpreg *);
                     97: void   frametoreg(struct trapframe *, struct reg *);
                     98: void   regtoframe(struct reg *, struct trapframe *);
                     99: #endif
                    100:
                    101: #endif /* _ALPHA_REG_H_ */