[refactor] Organize INT

kernel/interrupt/idt.cpp

@@ -47,13 +47,13 @@ void idt_init(void) {
     serial_write("IDT: initializing 256 entries\n");
 
     // Clear IDT
-    for (int i = 0; i < 256; i++) {
+    for (SSINT32 i = 0; i < 256; i++) {
         g_idt[i] = {0};
         g_handlers[i] = NULL;
     }
 
     // Install all 256 ISR stubs
-    for (int i = 0; i < 256; i++) {
+    for (SSINT32 i = 0; i < 256; i++) {
         idt_set_entry(i, (UINT64)isr_stub_table[i]);
     }