root / lab4 / .minix-src / include / minix / u64.h @ 13
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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 */ |