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Add the RB64 macro. 

Reads an unsigned 64 bit integer from memory.
This commit is contained in:
Tilman Sauerbeck 2015-11-16 19:47:04 +01:00 committed by Uwe Hermann
parent 8eb4299c5b
commit 17b93fd7c0
1 changed files with 14 additions and 0 deletions
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14
src/libsigrok-internal.h
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@ -116,6 +116,20 @@ struct zip_stat;
((unsigned)((const uint8_t*)(x))[1] << 8) | \ ((unsigned)((const uint8_t*)(x))[1] << 8) | \
(unsigned)((const uint8_t*)(x))[0])) (unsigned)((const uint8_t*)(x))[0]))
/**
* Read a 64 bits big endian unsigned integer out of memory.
* @param x a pointer to the input memory
* @return the corresponding unsigned integer
*/
#define RB64(x) (((uint64_t)((const uint8_t*)(x))[0] << 56) | \
((uint64_t)((const uint8_t*)(x))[1] << 48) | \
((uint64_t)((const uint8_t*)(x))[2] << 40) | \
((uint64_t)((const uint8_t*)(x))[3] << 32) | \
((uint64_t)((const uint8_t*)(x))[4] << 24) | \
((uint64_t)((const uint8_t*)(x))[5] << 16) | \
((uint64_t)((const uint8_t*)(x))[6] << 8) | \
(uint64_t)((const uint8_t*)(x))[7])
/** /**
* Read a 32 bits big endian float out of memory. * Read a 32 bits big endian float out of memory.
* @param x a pointer to the input memory * @param x a pointer to the input memory