- prepare OpenOCD for branching, created ./trunk/
[fw/openocd] / src / target / register.c
1 /***************************************************************************
2  *   Copyright (C) 2005 by Dominic Rath                                    *
3  *   Dominic.Rath@gmx.de                                                   *
4  *                                                                         *
5  *   This program is free software; you can redistribute it and/or modify  *
6  *   it under the terms of the GNU General Public License as published by  *
7  *   the Free Software Foundation; either version 2 of the License, or     *
8  *   (at your option) any later version.                                   *
9  *                                                                         *
10  *   This program is distributed in the hope that it will be useful,       *
11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
13  *   GNU General Public License for more details.                          *
14  *                                                                         *
15  *   You should have received a copy of the GNU General Public License     *
16  *   along with this program; if not, write to the                         *
17  *   Free Software Foundation, Inc.,                                       *
18  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
19  ***************************************************************************/
20 #include "register.h"
21
22 #include "log.h"
23 #include "command.h"
24
25 #include <string.h>
26 #include <stdlib.h>
27
28 reg_arch_type_t *reg_arch_types = NULL;
29
30 reg_t* register_get_by_name(reg_cache_t *first, char *name, int search_all)
31 {
32         int i;
33         reg_cache_t *cache = first;
34         
35         while (cache)
36         {
37                 for (i = 0; i < cache->num_regs; i++)
38                 {
39                         if (strcmp(cache->reg_list[i].name, name) == 0)
40                                 return &(cache->reg_list[i]);
41                 }
42                 
43                 if (search_all)
44                         cache = cache->next;
45                 else
46                         break;
47         }
48         
49         return NULL;
50 }
51
52 reg_cache_t** register_get_last_cache_p(reg_cache_t **first)
53 {
54         reg_cache_t **cache_p = first;
55         
56         if (*cache_p)
57                 while (*cache_p)
58                         cache_p = &((*cache_p)->next);
59         else
60                 return first;
61         
62         return cache_p;
63 }
64
65 int register_reg_arch_type(int (*get)(reg_t *reg), int (*set)(reg_t *reg, u32 value))
66 {
67         reg_arch_type_t** arch_type_p = &reg_arch_types;
68         int id = 0;
69         
70         if (*arch_type_p)
71         {
72                 while (*arch_type_p)
73                 {
74                         id = (*arch_type_p)->id;
75                         arch_type_p = &((*arch_type_p)->next);
76                 }
77         }
78         
79         (*arch_type_p) = malloc(sizeof(reg_arch_type_t));
80         (*arch_type_p)->id = id + 1;
81         (*arch_type_p)->set = set;
82         (*arch_type_p)->get = get;
83         (*arch_type_p)->next = NULL;
84                         
85         return id + 1;
86 }
87
88 reg_arch_type_t* register_get_arch_type(int id)
89 {
90         reg_arch_type_t *arch_type = reg_arch_types;
91         
92         while (arch_type)
93         {
94                 if (arch_type->id == id)
95                         return arch_type;
96                 arch_type = arch_type->next;
97         }
98         
99         return NULL;
100 }