Interrupt Descriptor Table

include/irq/idt.h

struct idt_entry

struct idt_entry {
    uint16_t  base_low;
    uint16_t  selector;
    uint8_t   ist;
    uint8_t   flags;
    uint16_t  base_mid;
    uint32_t  base_high;
    uint32_t  reserved;
};

struct idt_table

struct idt_table {
    struct idt_entry  entries[IDT_ENTRIES];
};

struct idt_table referenced types:

• struct idt_entry

struct idt_ptr

struct idt_ptr {
    uint16_t  limit;
    uint64_t  base;
};

irq_init

void irq_init();

irq_load

void irq_load();

idt_set_gate

void idt_set_gate(uint8_t num, uint16_t sel, uint8_t flags);

Defines

IDT_ENTRIES

#define IDT_ENTRIES 256

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