root / lab3 / utils.c @ 198
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1 | 30 | up20180655 | #include <lcom/lcf.h> |
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2 | |||
3 | #include <stdint.h> |
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4 | |||
5 | 65 | up20180642 | int(util_get_LSB)(uint16_t val, uint8_t *lsb) {
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6 | if (lsb == NULL) return 1; |
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7 | *lsb = val; |
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8 | return 0; |
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9 | } |
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10 | |||
11 | int(util_get_MSB)(uint16_t val, uint8_t *msb) {
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12 | if (msb == NULL) return 1; |
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13 | *msb = (val >> 8);
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14 | return 0; |
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15 | } |
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16 | |||
17 | 42 | up20180642 | #ifdef LAB3
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18 | uint32_t sys_inb_counter = 0;
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19 | #endif
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20 | |||
21 | 30 | up20180655 | int (util_sys_inb)(int port, uint8_t *value) { |
22 | if(value == NULL) return 1; |
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23 | uint32_t n = 0;
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24 | if(sys_inb(port, &n)) return 1; |
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25 | *value = n; |
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26 | 42 | up20180642 | #ifdef LAB3
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27 | ++sys_inb_counter; |
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28 | #endif
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29 | 30 | up20180655 | return 0; |
30 | } |