diff --git a/zk/Machine code.md b/zk/Machine code.md
index 6778249..f9a4c46 100644
--- a/zk/Machine code.md	
+++ b/zk/Machine code.md	
@@ -24,8 +24,23 @@ This 32bit line of binary has a series of instructions embedded within it. We
 partition each part of the sequence below, from left to right, mapping it to the
 instruction:
 
-| Binary sequence | Instruction | Action |
-| --------------- | ----------- | ------ |
-| 1110            |             |        |
-| 00              |             |        |
-| 1101            |             |        |
+| Binary sequence | Instruction          | Action                                   |
+| --------------- | -------------------- | ---------------------------------------- |
+| 1110            | condition            | always execute (unconditional)           |
+| 00              | --                   | --                                       |
+| 1               | immediate            | value is in the last 8 bits              |
+| 1101            | opcode               | `mov` : move the value                   |
+| 0               | --                   | --                                       |
+| 0000            | --                   | --                                       |
+| 0111            | destination register | destinaation is 0111 which corresonds    |
+| to `r7`         |
+| 0000            | --                   | --                                       |
+| 00000100        | immediate value      | the binary representation of decimal '4' |
+
+- The blank values are also instruction points, they are just not used in this
+  instruction
+
+- The instruction should run in all conditions not only under certain
+  circumstances
+
+- The immediate bit (`1`) tells us