root / lab4 / .minix-src / include / minix / u64.h @ 14
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| 1 | 13 | up20180614 | /* minix/u64.h Author: Kees J. Bot
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| 2 | * 7 Dec 1995
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| 3 | * Functions to manipulate 64 bit disk addresses.
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| 4 | */
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| 5 | #ifndef _MINIX__U64_H
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| 6 | #define _MINIX__U64_H
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| 7 | |||
| 8 | #include <sys/types.h> |
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| 9 | |||
| 10 | static inline unsigned long ex64lo(u64_t i) |
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| 11 | {
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| 12 | return (unsigned long)i; |
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| 13 | } |
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| 14 | |||
| 15 | static inline unsigned long ex64hi(u64_t i) |
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| 16 | {
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| 17 | return (unsigned long)(i>>32); |
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| 18 | } |
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| 19 | |||
| 20 | static inline u64_t make64(unsigned long lo, unsigned long hi) |
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| 21 | {
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| 22 | return ((u64_t)hi << 32) | (u64_t)lo; |
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| 23 | } |
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| 24 | |||
| 25 | #endif /* _MINIX__U64_H */ |