Interrupt Dispatch and Handling (for first common vectors)

src/kmain.c

@@ -6,6 +6,7 @@
 #include "io/serial.h"
 #include "mem/gdt.h"
 #include "mem/utils.h"
+#include "idt/idt.h"
 
 // Limine version used
 __attribute__((used, section(".limine_requests")))
@@ -35,6 +36,20 @@ static void hcf()
 	}
 }
 
+static inline void trigger_div0(void)
+{
+    asm volatile (
+        "mov $1, %%rax\n"
+        "xor %%rdx, %%rdx\n"
+        "xor %%rcx, %%rcx\n"  // divisor = 0
+        "idiv %%rcx\n"
+        :
+        :
+        : "rax", "rcx", "rdx"
+    );
+}
+
+
 // This is our entry point
 void kmain()
 {
@@ -47,14 +62,13 @@ void kmain()
 	if (term_init()) hcf();
 
 	if (serial_init()) kputs("kernel: serial: error: Cannot init serial communication!");
-	
-	serial_kputs("\n\nkernel: serial: Hello, world from serial!\n");
 
 	gdt_init();
-	serial_kputs("kernel: gdt: Initialized GDT!");
+	idt_init();
 
 	// Draw something
 	printf("%s, %s!", "Hello", "world");
 
+	trigger_div0();
 	hcf();
 }