root / lab4 / utils.c @ 64
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| 1 | 53 | up20180655 | #include <lcom/lcf.h> |
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| 2 | |||
| 3 | #include <stdint.h> |
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| 4 | |||
| 5 | 64 | 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 | #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 | 53 | up20180655 | int (util_sys_inb)(int port, uint8_t *value) { |
| 22 | 64 | up20180642 | if(value == NULL) return 1; |
| 23 | 53 | up20180655 | uint32_t n = 0;
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| 24 | 64 | up20180642 | if(sys_inb(port, &n)) return 1; |
| 25 | 53 | up20180655 | *value = n; |
| 26 | 64 | up20180642 | #ifdef LAB3
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| 27 | ++sys_inb_counter; |
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| 28 | #endif
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| 29 | return 0; |
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| 30 | 53 | up20180655 | } |