root / lab2 / utils.c @ 7
History | View | Annotate | Download (469 Bytes)
| 1 | 4 | up20180655 | #include <lcom/lcf.h> |
|---|---|---|---|
| 2 | |||
| 3 | #include <stdint.h> |
||
| 4 | |||
| 5 | int(util_get_LSB)(uint16_t val, uint8_t *lsb) {
|
||
| 6 | 7 | up20180655 | if (lsb == NULL) |
| 7 | return 1; |
||
| 8 | 4 | up20180655 | |
| 9 | 7 | up20180655 | *lsb = val; |
| 10 | return 0; |
||
| 11 | 4 | up20180655 | } |
| 12 | |||
| 13 | int(util_get_MSB)(uint16_t val, uint8_t *msb) {
|
||
| 14 | 7 | up20180655 | if (*msb == NULL) |
| 15 | return 1; |
||
| 16 | *msb = val >> 8;
|
||
| 17 | return 0; |
||
| 18 | 4 | up20180655 | } |
| 19 | |||
| 20 | int (util_sys_inb)(int port, uint8_t *value) { |
||
| 21 | 5 | up20180642 | /* To be implemented by the students */
|
| 22 | uint32_t n = 0;
|
||
| 23 | int ret = sys_inb(port, &n);
|
||
| 24 | *value = n; |
||
| 25 | return ret;
|
||
| 26 | 4 | up20180655 | } |