sos

[unmaintained] experimenting with low level OS development
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idt.h (432B)

      1 #ifndef IDT_H
      2 #define IDT_H
      3 
      4 #include <stdint.h>
      5 
      6 #define IDT_ENTRIES 256
      7 
      8 struct idt_entry {
      9     uint16_t base_lower;
     10     uint16_t selector;
     11     uint8_t unused;
     12     uint8_t type_attributes;
     13     uint16_t base_higher;
     14 } __attribute__((packed));
     15 
     16 struct idt_description {
     17     uint16_t limit;
     18     uint32_t base;
     19 } __attribute__((packed));
     20 
     21 struct idt_description idt_desc;
     22 struct idt_entry idt[IDT_ENTRIES];
     23 
     24 void idt_setup();
     25 
     26 #endif