started on isr/idt stuff

kernel/idt.h

@@ -0,0 +1,19 @@
+#ifndef KIDT_H
+#define KIDT_H
+
+#include <stdint.h>
+
+typedef struct {
+    uint16_t isr_low;   // The lower 16 bits of the ISR's address
+    uint16_t kernel_cs; // The GDT segment selector the CPU will load into CS
+    uint8_t  reserved;  // Set to 0
+    uint8_t  attributes;// Type and attributes flags
+    uint16_t isr_high;  // The higher 16 bits of the ISR's address
+} idt_entry __attribute__((packed));
+
+typedef struct  {
+    uint16_t limit;
+    uint32_t base;
+} idt_ptr __attribute__((packed));
+
+#endif