root / lab2 / utils.c
History | View | Annotate | Download (722 Bytes)
| 1 | 1 | up20180614 | #include <lcom/lcf.h> |
|---|---|---|---|
| 2 | |||
| 3 | #include <stdint.h> |
||
| 4 | |||
| 5 | int(util_get_LSB)(uint16_t val, uint8_t *lsb) {
|
||
| 6 | /* To be implemented by the students */
|
||
| 7 | 2 | up20180614 | //printf("%s is not yet implemented!\n", __func__);
|
| 8 | *lsb=val&0xFF;
|
||
| 9 | return 0; |
||
| 10 | 1 | up20180614 | } |
| 11 | |||
| 12 | int(util_get_MSB)(uint16_t val, uint8_t *msb) {
|
||
| 13 | /* To be implemented by the students */
|
||
| 14 | 2 | up20180614 | //printf("%s is not yet implemented!\n", __func__);
|
| 15 | *msb=(val&0xFF00)>>8; |
||
| 16 | 1 | up20180614 | |
| 17 | 2 | up20180614 | return 0; |
| 18 | 1 | up20180614 | } |
| 19 | |||
| 20 | int (util_sys_inb)(int port, uint8_t *value) { |
||
| 21 | /* To be implemented by the students */
|
||
| 22 | uint32_t b32; |
||
| 23 | 3 | up20180614 | if(sys_inb(port,&b32)!=0)return 1; |
| 24 | 1 | up20180614 | //printf("%x",b32);
|
| 25 | *value=b32&0xFF;
|
||
| 26 | //printf("%x\n",*value);
|
||
| 27 | |||
| 28 | |||
| 29 | //printf("%s is not yet implemented!\n", __func__);
|
||
| 30 | |||
| 31 | return 0; |
||
| 32 | } |
||
| 33 | |||
| 34 | /* a = 133
|
||
| 35 | b = a & 0x0F
|
||
| 36 | 1000 0101
|
||
| 37 | */ |