diff --git a/gfx_util.asm b/gfx_util.asm
new file mode 100644
index 0000000..e69de29
diff --git a/main.asm b/main.asm
index 0fbc67f..f744b78 100644
--- a/main.asm
+++ b/main.asm
@@ -5,20 +5,36 @@
 section KERNEL follows=BOOTSECTOR vstart=1000h
 
 main:
-    mov bx, 156
-    call print_sint
-    
-    ;mov ax, -20
-    ;mov dx, 0x0003
-    ;mov cx, 10
-    ;idiv cx
-    ;mov bx, ax
-    ;call print_uint
-    
+    mov ax, 0x0013
+    int 0x10
+
+    push es
+    push 0xa000
+    pop es
+
+    mov di, 0
+
+    mov bx, 0
+    .c:
+        add bl, 1
+        .f:
+            mov byte [es:di], bl
+            add di, 1
+            cmp di, 0xFFFF
+            jnz .f
+        push bx
+        mov bx, 100
+        call sleep
+        pop bx
+    jmp .c
+
+    pop es
+
 jmp $ ; Halt
     
 ; Libs
 %include "print_util.asm"
+%include "time_util.asm"
     
 ; Data
 HELLO_WORLD:
diff --git a/main.bin b/main.bin
index 319edc2..7962c32 100644
Binary files a/main.bin and b/main.bin differ
diff --git a/time_util.asm b/time_util.asm
new file mode 100644
index 0000000..a253e5d
--- /dev/null
+++ b/time_util.asm
@@ -0,0 +1,16 @@
+sleep:
+    pusha
+
+    mov ax, bx
+    mov bx, 1000
+    mul bx
+
+    mov cx, dx
+    mov dx, ax
+
+    mov ah, 0x86
+    mov al, 0
+    int 0x15
+
+    popa
+    ret
\ No newline at end of file