* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
- * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. *
***************************************************************************/
#ifndef TYPES_H
#define TYPES_H
* Again, note that the "buf" pointer in memory is probably unaligned.
*/
+static inline uint64_t le_to_h_u64(const uint8_t *buf)
+{
+ return (uint64_t)((uint64_t)buf[0] |
+ (uint64_t)buf[1] << 8 |
+ (uint64_t)buf[2] << 16 |
+ (uint64_t)buf[3] << 24 |
+ (uint64_t)buf[4] << 32 |
+ (uint64_t)buf[5] << 40 |
+ (uint64_t)buf[6] << 48 |
+ (uint64_t)buf[7] << 56);
+}
static inline uint32_t le_to_h_u32(const uint8_t* buf)
{
return (uint16_t)(buf[0] | buf[1] << 8);
}
+static inline uint64_t be_to_h_u64(const uint8_t *buf)
+{
+ return (uint64_t)((uint64_t)buf[7] |
+ (uint64_t)buf[6] << 8 |
+ (uint64_t)buf[5] << 16 |
+ (uint64_t)buf[4] << 24 |
+ (uint64_t)buf[3] << 32 |
+ (uint64_t)buf[2] << 40 |
+ (uint64_t)buf[1] << 48 |
+ (uint64_t)buf[0] << 56);
+}
+
static inline uint32_t be_to_h_u32(const uint8_t* buf)
{
return (uint32_t)(buf[3] | buf[2] << 8 | buf[1] << 16 | buf[0] << 24);
return (uint16_t)(buf[1] | buf[0] << 8);
}
+static inline void h_u64_to_le(uint8_t *buf, int64_t val)
+{
+ buf[7] = (uint8_t) (val >> 56);
+ buf[6] = (uint8_t) (val >> 48);
+ buf[5] = (uint8_t) (val >> 40);
+ buf[4] = (uint8_t) (val >> 32);
+ buf[3] = (uint8_t) (val >> 24);
+ buf[2] = (uint8_t) (val >> 16);
+ buf[1] = (uint8_t) (val >> 8);
+ buf[0] = (uint8_t) (val >> 0);
+}
+
+static inline void h_u64_to_be(uint8_t *buf, int64_t val)
+{
+ buf[0] = (uint8_t) (val >> 56);
+ buf[1] = (uint8_t) (val >> 48);
+ buf[2] = (uint8_t) (val >> 40);
+ buf[3] = (uint8_t) (val >> 32);
+ buf[4] = (uint8_t) (val >> 24);
+ buf[5] = (uint8_t) (val >> 16);
+ buf[6] = (uint8_t) (val >> 8);
+ buf[7] = (uint8_t) (val >> 0);
+}
+
static inline void h_u32_to_le(uint8_t* buf, int val)
{
buf[3] = (uint8_t) (val >> 24);
buf[1] = (uint8_t) (val >> 0);
}
+/**
+ * Byte-swap buffer 16-bit.
+ *
+ * Len must be even, dst and src must be either the same or non-overlapping.
+ *
+ * @param dst Destination buffer.
+ * @param src Source buffer.
+ * @param len Length of source (and destination) buffer, in bytes.
+ */
+static inline void buf_bswap16(uint8_t *dst, const uint8_t *src, size_t len)
+{
+ assert(len % 2 == 0);
+ assert(dst == src || dst + len <= src || src + len <= dst);
+
+ for (size_t n = 0; n < len; n += 2) {
+ uint16_t x = be_to_h_u16(src + n);
+ h_u16_to_le(dst + n, x);
+ }
+}
+
+/**
+ * Byte-swap buffer 32-bit.
+ *
+ * Len must be divisible by four, dst and src must be either the same or non-overlapping.
+ *
+ * @param dst Destination buffer.
+ * @param src Source buffer.
+ * @param len Length of source (and destination) buffer, in bytes.
+ */
+static inline void buf_bswap32(uint8_t *dst, const uint8_t *src, size_t len)
+{
+ assert(len % 4 == 0);
+ assert(dst == src || dst + len <= src || src + len <= dst);
+
+ for (size_t n = 0; n < len; n += 4) {
+ uint32_t x = be_to_h_u32(src + n);
+ h_u32_to_le(dst + n, x);
+ }
+}
+
+/**
+ * Calculate the (even) parity of a 32-bit datum.
+ * @param x The datum.
+ * @return 1 if the number of set bits in x is odd, 0 if it is even.
+ */
+static inline int parity_u32(uint32_t x)
+{
+#ifdef __GNUC__
+ return __builtin_parityl(x);
+#else
+ x ^= x >> 16;
+ x ^= x >> 8;
+ x ^= x >> 4;
+ x ^= x >> 2;
+ x ^= x >> 1;
+ return x & 1;
+#endif
+}
+
#if defined(__ECOS)
/* eCos plain lacks these definition... A series of upstream patches
#define PRIi32 "i"
#define PRIu32 "u"
#define PRId8 PRId32
+#define SCNx64 "llx"
+#define PRIx64 "llx"
typedef CYG_ADDRWORD intptr_t;
typedef int64_t intmax_t;
#define UINT64_MAX (__CONCAT(INT64_MAX, U) * 2ULL + 1ULL)
#endif
- #ifndef LLONG_MAX
+ #ifndef LLONG_MAX
#define ULLONG_MAX UINT64_C(0xFFFFFFFFFFFFFFFF)
#define LLONG_MAX INT64_C(0x7FFFFFFFFFFFFFFF)
#define LLONG_MIN ULLONG_MAX
- #endif
+ #endif
#define ULLONG_MAX 18446744073709551615