From 01c36086d51a3fbec7fa04d2f92a79a32faa8ad2 Mon Sep 17 00:00:00 2001
From: Neel Gala <neelgala@incoresemi.com>
Date: Sat, 14 Jan 2023 13:48:36 +0530
Subject: updated readme

---
 README.md | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/README.md b/README.md
index d41015a..dec6003 100644
--- a/README.md
+++ b/README.md
@@ -81,6 +81,15 @@ Instruction syntaxes used in this project are broadly categorized into three:
   ```
   $import rv32_zkne::aes32esmi
   ```
+
+### RESTRICTIONS
+
+Following are the restrictions one should keep in mind while defining $pseudo\_ops and $imported\_ops
+
+- Pseudo-op or already imported instructions cannot be imported again in another file. One should
+  always import base-instructions only.
+- While defining a $pseudo\_op, the base-instruction itself cannot be a $pseudo\_op
+
 ## Flow for parse.py
 
 The `parse.py` python file is used to perform checks on the current set of instruction encodings and also generates multiple artifacts : latex tables, encoding.h header file, etc. This section will provide a brief overview of the flow within the python file.
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