add: idt

headers/idt.h

@@ -6,4 +6,15 @@ struct idt_descriptor {
 	uint32_t offset;
 } __attribute__((packed));
 
-#define IDT_SIZE 256
+struct idt_entry {
+	uint16_t isr_low;   // The lower 16 bits of the ISR's address
+	uint16_t kernel_cs; // The GDT segment selector that the CPU will load
+	                    // into CS before calling the ISR
+	uint8_t reserved;   // Set to zero
+	uint8_t attributes; // Type and attributes; see the IDT page
+	uint16_t isr_high;  // The higher 16 bits of the ISR's address
+} __attribute__((packed));
+
+#define IDT_SIZE 256
+
+void init_idt(void);