root / lab4 / utils.c @ 73
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1 | 53 | up20180655 | #include <lcom/lcf.h> |
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2 | |||
3 | 68 | up20180642 | #include "utils.h" |
4 | |||
5 | 53 | up20180655 | #include <stdint.h> |
6 | 68 | up20180642 | #include "errors.h" |
7 | 53 | up20180655 | |
8 | 64 | up20180642 | int(util_get_LSB)(uint16_t val, uint8_t *lsb) {
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9 | 68 | up20180642 | if (lsb == NULL) return NULL_PTR; |
10 | 64 | up20180642 | *lsb = val; |
11 | 68 | up20180642 | return SUCCESS;
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12 | 64 | up20180642 | } |
13 | |||
14 | int(util_get_MSB)(uint16_t val, uint8_t *msb) {
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15 | 68 | up20180642 | if (msb == NULL) return NULL_PTR; |
16 | 64 | up20180642 | *msb = (val >> 8);
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17 | 68 | up20180642 | return SUCCESS;
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18 | 64 | up20180642 | } |
19 | |||
20 | #ifdef LAB3
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21 | uint32_t sys_inb_counter = 0;
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22 | #endif
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23 | |||
24 | 53 | up20180655 | int (util_sys_inb)(int port, uint8_t *value) { |
25 | 68 | up20180642 | if(value == NULL) return NULL_PTR; |
26 | 53 | up20180655 | uint32_t n = 0;
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27 | 68 | up20180642 | if(sys_inb(port, &n)) return READ_ERROR; |
28 | 53 | up20180655 | *value = n; |
29 | 64 | up20180642 | #ifdef LAB3
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30 | ++sys_inb_counter; |
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31 | #endif
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32 | 68 | up20180642 | return SUCCESS;
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33 | 53 | up20180655 | } |