diff --git a/Instruction-Set.md b/Instruction-Set.md
index bf75aee..625fd97 100644
--- a/Instruction-Set.md
+++ b/Instruction-Set.md
@@ -484,7 +484,9 @@ A = (result & 0x00ff)
 | `DIV source`    | `0x18` |  `source` : `mem` / `reg` / `imm` |  `-`  |  `-` |  `-` |    `-`   |  `X`  |
 
 #### Description
-`DIV` performs unsigned division on `A` with `source` as divisor and stores the result into `A` and the remainder in `Y`.
+`DIV` performs unsigned division on `Y:A` with `source` as divisor and stores the result into `A` and the remainder in `Y`.
+
+> NOTE: `DIV` operates on a 32 bit integer composed of `Y:A`. So multiple `DIV` instructions without setting Y to what you want will result into weird results
 
 Note that a division by 0 will set the (undocumented) error flag and the break flag. This will halt execution.