diff --git a/todo.txt b/todo.txt
index 5a68d9c..776517e 100644
--- a/todo.txt
+++ b/todo.txt
@@ -41,9 +41,10 @@ Legend:
     - [x] Exception handling
     - [x] Hardware/software interrupts
     - [x] Syscalls! (int 0x80)
-    - [ ] IRQ 0 - PIT
+    - [x] IRQ 0 - PIT
     - [ ] IRQ 1 - Keyboard
-    - [ ] IRQ 8 - CMOS Real time clock
+    - [x] IRQ 8 - CMOS Real time clock
+    - [?] Other IRQs (idk which ones)
 - [ ] Math
     - [ ] Trigonometry
         - [ ] Sine
@@ -82,7 +83,8 @@ Legend:
         - [ ] Symbolic
         - [ ] Hard
 - [ ] System Calls
-    - [ ] Sleep()
+    - [x] Sleep()
+    - [x] Print() - Temporary for printing before we get Write(stdout) :)
     - [ ] Write()
     - [ ] Read()
     - [ ] Open()