79eac13ae7df8796a436086ade7ffcccb0037a7a
[openocd.git] / src / helper / types.h
1 /***************************************************************************
2 * Copyright (C) 2004, 2005 by Dominic Rath *
3 * Dominic.Rath@gmx.de *
4 * *
5 * Copyright (C) 2007,2008 √ėyvind Harboe *
6 * oyvind.harboe@zylin.com *
7 * *
8 * This program is free software; you can redistribute it and/or modify *
9 * it under the terms of the GNU General Public License as published by *
10 * the Free Software Foundation; either version 2 of the License, or *
11 * (at your option) any later version. *
12 * *
13 * This program is distributed in the hope that it will be useful, *
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
16 * GNU General Public License for more details. *
17 * *
18 * You should have received a copy of the GNU General Public License *
19 * along with this program; if not, write to the *
20 * Free Software Foundation, Inc., *
21 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
22 ***************************************************************************/
23 #ifndef TYPES_H
24 #define TYPES_H
25
26 #ifdef HAVE_SYS_TYPES_H
27 #include <sys/types.h>
28 #endif
29 #ifdef HAVE_STDINT_H
30 #include <stdint.h>
31 #endif
32 #ifdef HAVE_INTTYPES_H
33 #include <inttypes.h>
34 #endif
35
36 #ifdef HAVE_STDBOOL_H
37 #include <stdbool.h>
38 #else /* HAVE_STDBOOL_H */
39 #define __bool_true_false_are_defined 1
40
41 #ifndef HAVE__BOOL
42 #ifndef __cplusplus
43
44 #define false 0
45 #define true 1
46
47 typedef int _Bool;
48 #else
49 typedef bool _Bool;
50 #endif /* __cplusplus */
51 #endif /* HAVE__BOOL */
52
53 #define bool _Bool
54
55 #endif /* HAVE_STDBOOL_H */
56
57 /// turns a macro argument into a string constant
58 #define stringify(s) __stringify(s)
59 #define __stringify(s) #s
60
61 /* DANGER!!!! here be dragons!
62 *
63 * Leave these fn's as byte accesses because it is safe
64 * across architectures. Clever usage of 32 bit access
65 * will create problems on some hosts.
66 *
67 * Note that the "buf" pointer in memory is probably unaligned.
68 *
69 * Were these functions to be re-written to take a 32 bit wide or 16 bit wide
70 * memory access shortcut, then on some CPU's, i.e. ARM7, the 2 lsbytes of the address are
71 * ignored for 32 bit access, whereas on other CPU's a 32 bit wide unaligned memory access
72 * will cause an exception, and lastly on x86, an unaligned "greater than bytewide"
73 * memory access works as if aligned. So what follows below will work for all
74 * platforms and gives the compiler leeway to do its own platform specific optimizations.
75 *
76 * Again, note that the "buf" pointer in memory is probably unaligned.
77 */
78
79
80 static inline uint32_t le_to_h_u32(const uint8_t* buf)
81 {
82 return (uint32_t)(buf[0] | buf[1] << 8 | buf[2] << 16 | buf[3] << 24);
83 }
84
85 static inline uint16_t le_to_h_u16(const uint8_t* buf)
86 {
87 return (uint16_t)(buf[0] | buf[1] << 8);
88 }
89
90 static inline uint32_t be_to_h_u32(const uint8_t* buf)
91 {
92 return (uint32_t)(buf[3] | buf[2] << 8 | buf[1] << 16 | buf[0] << 24);
93 }
94
95 static inline uint16_t be_to_h_u16(const uint8_t* buf)
96 {
97 return (uint16_t)(buf[1] | buf[0] << 8);
98 }
99
100 static inline void h_u32_to_le(uint8_t* buf, int val)
101 {
102 buf[3] = (uint8_t) (val >> 24);
103 buf[2] = (uint8_t) (val >> 16);
104 buf[1] = (uint8_t) (val >> 8);
105 buf[0] = (uint8_t) (val >> 0);
106 }
107
108 static inline void h_u32_to_be(uint8_t* buf, int val)
109 {
110 buf[0] = (uint8_t) (val >> 24);
111 buf[1] = (uint8_t) (val >> 16);
112 buf[2] = (uint8_t) (val >> 8);
113 buf[3] = (uint8_t) (val >> 0);
114 }
115
116 static inline void h_u16_to_le(uint8_t* buf, int val)
117 {
118 buf[1] = (uint8_t) (val >> 8);
119 buf[0] = (uint8_t) (val >> 0);
120 }
121
122 static inline void h_u16_to_be(uint8_t* buf, int val)
123 {
124 buf[0] = (uint8_t) (val >> 8);
125 buf[1] = (uint8_t) (val >> 0);
126 }
127
128 #if defined(__ECOS)
129
130 /* eCos plain lacks these definition... A series of upstream patches
131 * could probably repair it, but it seems like too much work to be
132 * worth it.
133 */
134
135 #if !defined(_STDINT_H)
136 #define PRIx32 "x"
137 #define PRId32 "d"
138 #define SCNx32 "x"
139 #define PRIi32 "i"
140 #define PRIu32 "u"
141
142 typedef CYG_ADDRWORD intptr_t;
143 typedef int64_t intmax_t;
144 typedef uint64_t uintmax_t;
145 #define INT8_MAX 0x7f
146 #define INT8_MIN (-INT8_MAX - 1)
147 # define UINT8_MAX (255)
148 #define INT16_MAX 0x7fff
149 #define INT16_MIN (-INT16_MAX - 1)
150 # define UINT16_MAX (65535)
151 #define INT32_MAX 0x7fffffffL
152 #define INT32_MIN (-INT32_MAX - 1L)
153 # define UINT32_MAX (4294967295U)
154 #define INT64_MAX 0x7fffffffffffffffLL
155 #define INT64_MIN (-INT64_MAX - 1LL)
156 #define UINT64_MAX (__CONCAT(INT64_MAX, U) * 2ULL + 1ULL)
157 #endif
158
159 #ifndef LLONG_MAX
160 #define ULLONG_MAX UINT64_C(0xFFFFFFFFFFFFFFFF)
161 #define LLONG_MAX INT64_C(0x7FFFFFFFFFFFFFFF)
162 #define LLONG_MIN ULLONG_MAX
163 #endif
164
165
166 #define ULLONG_MAX 18446744073709551615
167
168 /* C99, eCos is C90 compliant (with bits of C99) */
169 #define isblank(c) ((c) == ' ' || (c) == '\t')
170
171
172 #endif
173
174 #endif /* TYPES_H */

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