diff --git a/Hardware:-Com-Port.md b/Hardware:-Com-Port.md
index 1e6e8de..2846567 100644
--- a/Hardware:-Com-Port.md
+++ b/Hardware:-Com-Port.md
@@ -9,7 +9,7 @@ Hardware ID: `0x000D`
 ### Interrupt Behavior
 | Value of A | Action | Energy cost | Result |
 | --- | --- | --- | --- |
-| `1` | `POLL` | `? kJ` | Does nothing, currently |
-| `2` | `OUT` | `? kJ` | Copies up to 8 words starting from the address in X* |
-
-*You must be adjacent to and facing the tower in order to send messages.
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+| `0` | `SELF_CLEAR` | `0 kJ` | Clear the console output |
+| `1` | `POLL` | `4 kJ` | Read all messages in the console buffer to memory at X, sets B to the number of messages |
+| `2` | `FRONT_PORT_OUT` | `20 kJ` | Copies 8 words starting from the address in X to the object directly in front of the cubot |
+| `3` | `SELF_OUT` | `1 kJ` | Copies 8 words starting from the address in X to the console output |
\ No newline at end of file