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More little-endian memreadwrite macros.

This commit is contained in:
Maxim Poliakovski 2020-03-31 14:06:01 +02:00
parent 1744f13fb4
commit ec384fb5ea
1 changed files with 33 additions and 8 deletions
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41
memreadwrite.h
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@ -35,22 +35,22 @@
/* read an unaligned big-endian QWORD (32bit) */
#define READ_QWORD_BE_U(addr) (((addr)[0] << 56) | ((addr)[1] << 48) | \
((addr)[2] << 40) | ((addr)[3] << 32) | \
((addr)[4] << 24) | ((addr)[5] << 16) | \
((addr)[6] << 8) | (addr)[7])
((addr)[2] << 40) | ((addr)[3] << 32) | \
((addr)[4] << 24) | ((addr)[5] << 16) | \
((addr)[6] << 8) | (addr)[7])
/* read an unaligned little-endian WORD (16bit) */
#define READ_WORD_LE_U(addr) (((addr)[1] << 8) | (ptr)[0])
#define READ_WORD_LE_U(addr) (((addr)[1] << 8) | (addr)[0])
/* read an unaligned little-endian DWORD (32bit) */
#define READ_DWORD_LE_U(addr) (((addr)[3] << 24) | ((addr)[2] << 16) | \
((addr)[1] << 8) | (addr)[0])
((addr)[1] << 8) | (addr)[0])
/* read an unaligned little-endian DWORD (32bit) */
#define READ_QWORD_LE_U(addr) (((addr)[7] << 56) | ((addr)[6] << 48) | \
((addr)[5] << 40) | ((addr)[4] << 32) | \
((addr)[3] << 24) | ((addr)[2] << 16) | \
((addr)[1] << 8) | (addr)[0])
((addr)[5] << 40) | ((addr)[4] << 32) | \
((addr)[3] << 24) | ((addr)[2] << 16) | \
((addr)[1] << 8) | (addr)[0])
/* write an aligned big-endian WORD (16bit) */
@ -78,4 +78,29 @@ do { \
(addr)[3] = (val) & 0xFF; \
} while(0)
/* write an aligned little-endian WORD (16bit) */
#define WRITE_WORD_LE_A(addr,val) (*((uint16_t *)((addr))) = (val))
/* write an aligned little-endian DWORD (32bit) */
#define WRITE_DWORD_LE_A(addr,val) (*((uint32_t *)((addr))) = (val))
/* write an aligned little-endian QWORD (64bit) */
#define WRITE_QWORD_LE_A(addr,val) (*((uint64_t *)((addr))) = (val))
/* write an unaligned little-endian WORD (16bit) */
#define WRITE_WORD_LE_U(addr, val) \
do { \
(addr)[0] = (val) & 0xFF; \
(addr)[1] = ((val) >> 8) & 0xFF; \
} while(0)
/* write an unaligned little-endian DWORD (32bit) */
#define WRITE_DWORD_LE_U(addr, val) \
do { \
(addr)[0] = (val) & 0xFF; \
(addr)[1] = ((val) >> 8) & 0xFF; \
(addr)[2] = ((val) >> 16) & 0xFF; \
(addr)[3] = ((val) >> 24) & 0xFF; \
} while(0)
#endif /* MEM_READ_WRITE_H */