diff --git a/rust_experiments/src/lib.rs b/rust_experiments/src/lib.rs
index 257d36e..6faa7a9 100644
--- a/rust_experiments/src/lib.rs
+++ b/rust_experiments/src/lib.rs
@@ -60,11 +60,13 @@ pub extern fn rust_main() {
             timer = 0;
         }
 
-        if count > 200 && count < 300 {
+        /*
+        if count > 200 && count % 3 == 0 {
             unsafe {
                 call_interrupt();
             }
         }
+        */
     }
 
     loop {}
diff --git a/rust_experiments/src/long_mode_init.asm b/rust_experiments/src/long_mode_init.asm
index 393458a..a09ac67 100644
--- a/rust_experiments/src/long_mode_init.asm
+++ b/rust_experiments/src/long_mode_init.asm
@@ -24,7 +24,7 @@ long_mode_start:
     hlt
 
 spin_loop_64:
-    mov rcx, 0xffff_fff
+    mov rcx, 0xffff_ff
     .loop:
     dec rcx
     cmp rcx, 0
@@ -71,7 +71,7 @@ get_rdtsc:
     ret
 
 call_interrupt:
-    int 5
+    int 9
     ret
 
 sample_handler:
@@ -98,7 +98,7 @@ sample_handler:
     call spin_loop_64
     iretq
 
-%define int_num 5
+%define int_num 9
 setup_IDT:
     lidt [idt64.pointer]
     mov rax, sample_handler
@@ -112,6 +112,11 @@ setup_IDT:
     ret
 
 setup_PIC:
+    mov al, 0xfd
+    out byte 0x21, al
+    mov al, 0xff
+    out byte 0xa1, al
+    sti
     ret
 
 idt64: