From 207dfea72edc4e3c47fe53b38e8ab04e61bd733a Mon Sep 17 00:00:00 2001
From: Tsvetan Dimitrov <tsvetan.dimitrov@consensys.net>
Date: Thu, 11 Jan 2024 13:51:24 +0200
Subject: [PATCH] feat(modexp): add columns

---
 Makefile                |  3 +++
 modexp/columns.lisp     | 11 +++++++++++
 modexp/constraints.lisp |  0
 3 files changed, 14 insertions(+)
 create mode 100644 modexp/columns.lisp
 create mode 100644 modexp/constraints.lisp

diff --git a/Makefile b/Makefile
index 6b5ca59f..04b718dd 100644
--- a/Makefile
+++ b/Makefile
@@ -84,6 +84,8 @@ TXN_DATA := txn_data/columns.lisp txn_data/constraints.lisp \
 WCP := wcp/columns.lisp wcp/constraints.lisp \
 	   # wcp/hub_into_wcp.lisp \
 
+MODEXP := modexp/
+
 ZKEVM_MODULES := ${ALU} \
 	${BIN} \
 	${EC_DATA} \
@@ -92,6 +94,7 @@ ZKEVM_MODULES := ${ALU} \
 	${LOG_DATA} \
 	${LOG_INFO} \
 	${MEMORY} \
+	${MODEXP} \
 	${MXP} \
 	${PUB_DATA} \
 	${RLP_ADDR} \
diff --git a/modexp/columns.lisp b/modexp/columns.lisp
new file mode 100644
index 00000000..2e5bb663
--- /dev/null
+++ b/modexp/columns.lisp
@@ -0,0 +1,11 @@
+(module modexp)
+
+(defcolumns 
+  STAMP
+  (CT :byte)
+  (RDCN :i32)
+  BEMR
+  (INDEX :byte :display :dec)
+  (LIMB :display :bytes)
+  (BYTES :byte))
+
diff --git a/modexp/constraints.lisp b/modexp/constraints.lisp
new file mode 100644
index 00000000..e69de29b