diff --git a/vm.md b/vm.md
index 550f69b..958f252 100644
--- a/vm.md
+++ b/vm.md
@@ -124,6 +124,9 @@ Arithmetic instructions store their result in the last register specified.
     * (hw = half word)
     * **Params**: REG1, IMM_HW
     * `REG1 = IMM_HW`
-* Copy
+* MemCopy
     * **Params**: REG1, REG2
     * `MEM[REG1] = MEM[REG2]`
+* RegCopy
+    * **Params**: REG1, REG2
+    * `REG1 = REG2`