diff --git a/readme.md b/readme.md
index 2ef0fe4..8c9024e 100644
--- a/readme.md
+++ b/readme.md
@@ -6,10 +6,14 @@
 
 Computer:
 - [ ] Implement carry flag on SUB
+- [ ] Move screen memory down,
+      and add a pointer to screen mem at $00
+      to make the screen relocatable
 
 Misc:
 - [ ] Write some more complex test programs
-- [ ] Do a proper binary version...
+    - [ ] Display (hex) numbers
+- [ ] Do a proper binary version... (or lose the typed arrays?)
 
 ## Instruction set