From 44d2c3b7556f7edf452f222bfe07400d3a8b65b6 Mon Sep 17 00:00:00 2001
From: Miodrag Milanovic <mmicko@gmail.com>
Date: Thu, 18 Dec 2025 15:18:39 +0100
Subject: [PATCH] add comment

---
 himbaechel/uarch/gatemate/gatemate.cc | 1 +
 1 file changed, 1 insertion(+)

diff --git a/himbaechel/uarch/gatemate/gatemate.cc b/himbaechel/uarch/gatemate/gatemate.cc
index c39b70ee..2c2e99e2 100644
--- a/himbaechel/uarch/gatemate/gatemate.cc
+++ b/himbaechel/uarch/gatemate/gatemate.cc
@@ -470,6 +470,7 @@ void GateMateImpl::postRoute()
         if (cell->getPort(port)) {
             NetInfo *net = cell->getPort(port);
             WireId src = ctx->getBelPinWire(cell->bel, port);
+            // In current chip db real CPE input is max 4 pips away
             for (int i = 0; i < 4; i++) {
                 if (net->wires.count(src)) {
                     auto &p = net->wires.at(src);