Add implementation for GDT & IDT on x32 and QoL fixes

Architecture/i386/cpu/idt.hpp

@@ -22,6 +22,48 @@
 
 namespace InterruptDescriptorTable
 {
+    typedef enum _InterruptGateType
+    {
+        TASK = 0b101,
+        INT_16BIT = 0b110,
+        TRAP_16BIT = 0b111,
+        INT_32BIT = 0b1110,
+        TRAP_32BIT = 0b1111,
+    } InterruptGateType;
+
+    typedef enum _InterruptRingType
+    {
+        RING0 = 0b0,
+        RING1 = 0b1,
+        RING2 = 0b10,
+        RING3 = 0b11,
+    } InterruptRingType;
+
+    typedef struct _InterruptDescriptorTableEntry
+    {
+        uint32_t LowOffset : 16;
+        uint32_t SegmentSelector : 16;
+        uint32_t Reserved0 : 5;
+        uint32_t Flags : 4;
+        uint32_t Reserved1 : 1;
+        uint32_t Ring : 2;
+        uint32_t Present : 1;
+        uint32_t HighOffset : 16;
+    } __packed InterruptDescriptorTableEntry;
+
+    typedef struct _InterruptDescriptorTableDescriptor
+    {
+        uint16_t Length;
+        InterruptDescriptorTableEntry *Entries;
+    } __packed InterruptDescriptorTableDescriptor;
+
+    void SetEntry(uint8_t Index,
+                  void (*Base)(),
+                  InterruptGateType Gate,
+                  InterruptRingType Ring,
+                  bool Present,
+                  uint16_t SegmentSelector);
+
     void Init(int Core);
 }