Revision 4
All functions running, review code
| utils.c | ||
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#include <stdint.h> |
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int(util_get_LSB)(uint16_t val, uint8_t *lsb) {
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/* To be implemented by the students */ |
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printf("%s is not yet implemented!\n", __func__);
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*lsb = (uint8_t) val; //truncation of 16 bit to 8 bit (maintains the LSB) |
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return 1;
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return 0;
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} |
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int(util_get_MSB)(uint16_t val, uint8_t *msb) {
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/* To be implemented by the students */
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printf("%s is not yet implemented!\n", __func__);
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val= val>>8; //8 bit shift, gets rid of LSB
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*msb=(uint8_t)val; //truncation of 16 bit to 8 bit (this time we have the MSB)
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return 1;
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return 0;
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} |
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int (util_sys_inb)(int port, uint8_t *value) {
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/* To be implemented by the students */ |
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printf("%s is not yet implemented!\n", __func__);
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int (util_sys_inb)(int port, uint8_t *value) { //transform 8 bit into 32 bit
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return 1; |
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uint32_t new_val; //initializing 32 bit variable |
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if(sys_inb(port,&new_val)!=0){ //verifies if there is an error
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printf("Error in util_sys_inb\n");
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return 1; |
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} |
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*value=new_val & 0xFF; // dereferencing "value" |
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return 0; |
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} |
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