From 78762796e8ebc2f6a4b69b55c13ad59fb244c5df Mon Sep 17 00:00:00 2001
From: Abraham Gonzalez <abe.j.gonza@gmail.com>
Date: Mon, 9 Feb 2026 15:59:51 -0800
Subject: [PATCH] Modify in_bits to check in_valid before accessing

Signed-off-by: Abraham Gonzalez <abe.j.gonza@gmail.com>
---
 fesvr/tsi.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fesvr/tsi.h b/fesvr/tsi.h
index 825a3a00..fe60fcc3 100644
--- a/fesvr/tsi.h
+++ b/fesvr/tsi.h
@@ -26,8 +26,8 @@ class tsi_t : public htif_t
   uint32_t recv_word();
   void switch_to_host();
 
-  uint32_t in_bits() { return in_data.front(); }
   bool in_valid() { return !in_data.empty(); }
+  uint32_t in_bits() { return in_valid() ? in_data.front() : 0; }
   bool out_ready() { return true; }
   void tick(bool out_valid, uint32_t out_bits, bool in_ready);