1 /***************************************************************************
2 * Copyright (C) 2004, 2005 by Dominic Rath *
3 * Dominic.Rath@gmx.de *
5 * Copyright (C) 2007,2008 Øyvind Harboe *
6 * oyvind.harboe@zylin.com *
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. *
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. *
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 ***************************************************************************/
26 #ifdef HAVE_SYS_TYPES_H
27 #include <sys/types.h>
31 typedef struct jtag_tap_s jtag_tap_t;
35 #else /* HAVE_STDBOOL_H */
36 #define __bool_true_false_are_defined 1
47 #endif /* __cplusplus */
48 #endif /* HAVE__BOOL */
52 #endif /* HAVE_STDBOOL_H */
54 /* DANGER!!!! here be dragons!
56 * Leave these fn's as byte accesses because it is safe
57 * across architectures. Clever usage of 32 bit access
58 * will create problems on some hosts.
60 * Note that the "buf" pointer in memory is probably unaligned.
62 * Were these functions to be re-written to take a 32 bit wide or 16 bit wide
63 * memory access shortcut, then on some CPU's, i.e. ARM7, the 2 lsbytes of the address are
64 * ignored for 32 bit access, whereas on other CPU's a 32 bit wide unaligned memory access
65 * will cause an exception, and lastly on x86, an unaligned "greater than bytewide"
66 * memory access works as if aligned. So what follows below will work for all
67 * platforms and gives the compiler leeway to do its own platform specific optimizations.
69 * Again, note that the "buf" pointer in memory is probably unaligned.
73 static inline uint32_t le_to_h_u32(const uint8_t* buf)
75 return (uint32_t)(buf[0] | buf[1] << 8 | buf[2] << 16 | buf[3] << 24);
78 static inline uint16_t le_to_h_u16(const uint8_t* buf)
80 return (uint16_t)(buf[0] | buf[1] << 8);
83 static inline uint32_t be_to_h_u32(const uint8_t* buf)
85 return (uint32_t)(buf[3] | buf[2] << 8 | buf[1] << 16 | buf[0] << 24);
88 static inline uint16_t be_to_h_u16(const uint8_t* buf)
90 return (uint16_t)(buf[1] | buf[0] << 8);
93 static inline void h_u32_to_le(uint8_t* buf, int val)
95 buf[3] = (uint8_t) (val >> 24);
96 buf[2] = (uint8_t) (val >> 16);
97 buf[1] = (uint8_t) (val >> 8);
98 buf[0] = (uint8_t) (val >> 0);
101 static inline void h_u32_to_be(uint8_t* buf, int val)
103 buf[0] = (uint8_t) (val >> 24);
104 buf[1] = (uint8_t) (val >> 16);
105 buf[2] = (uint8_t) (val >> 8);
106 buf[3] = (uint8_t) (val >> 0);
109 static inline void h_u16_to_le(uint8_t* buf, int val)
111 buf[1] = (uint8_t) (val >> 8);
112 buf[0] = (uint8_t) (val >> 0);
115 static inline void h_u16_to_be(uint8_t* buf, int val)
117 buf[0] = (uint8_t) (val >> 8);
118 buf[1] = (uint8_t) (val >> 0);
123 /* eCos plain lacks this definition... */
124 typedef CYG_ADDRWORD intptr_t;
125 typedef int64_t intmax_t;
126 typedef uint64_t uintmax_t;
127 #define INT8_MAX 0x7f
128 #define INT8_MIN (-INT8_MAX - 1)
129 # define UINT8_MAX (255)
130 #define INT16_MAX 0x7fff
131 #define INT16_MIN (-INT16_MAX - 1)
132 # define UINT16_MAX (65535)
133 #define INT32_MAX 0x7fffffffL
134 #define INT32_MIN (-INT32_MAX - 1L)
135 # define UINT32_MAX (4294967295U)
136 #define INT64_MAX 0x7fffffffffffffffLL
137 #define INT64_MIN (-INT64_MAX - 1LL)
138 #define UINT64_MAX (__CONCAT(INT64_MAX, U) * 2ULL + 1ULL)