From 23a99989d18dd0a61e1c083672a51ae8298f1b8d Mon Sep 17 00:00:00 2001
From: Miodrag Milanovic <mmicko@gmail.com>
Date: Mon, 19 May 2025 09:47:17 +0200
Subject: [PATCH] gatemate: invert output enable for io buffer

---
 himbaechel/uarch/gatemate/pack_io.cc | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/himbaechel/uarch/gatemate/pack_io.cc b/himbaechel/uarch/gatemate/pack_io.cc
index 847c188c..0ea371ce 100644
--- a/himbaechel/uarch/gatemate/pack_io.cc
+++ b/himbaechel/uarch/gatemate/pack_io.cc
@@ -503,7 +503,9 @@ void GateMatePacker::pack_io_sel()
 
         Loc root_loc = ctx->getBelLocation(ci.bel);
         for (int i = 0; i < 4; i++) {
-            move_ram_o_fixed(&ci, ctx->idf("OUT%d", i + 1), root_loc);
+            CellInfo *cpe = move_ram_o_fixed(&ci, ctx->idf("OUT%d", i + 1), root_loc);
+            if (cpe && i == 2)
+                cpe->params[id_INIT_L10] = Property(0b0101, 4); // Invert CPE out for output enable (OUT3)
         }
     }
     flush_cells();