From abf969f43ed193792241ef8822ad0a1d60a69d0d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ada=20Gottenstr=C3=A4ter?= <nunuu@gmx.net>
Date: Sun, 9 Oct 2022 22:41:15 +0200
Subject: [PATCH] Fix serial input spam when no terminal on stdin

---
 spinsim.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/spinsim.c b/spinsim.c
index 51ebcf2..21d5db4 100755
--- a/spinsim.c
+++ b/spinsim.c
@@ -525,6 +525,7 @@ int CheckSerialIn(SerialT *serial)
         value = getch();
 //printf("CheckSerialIn: value = %x\n", value);
         if (value == 0x1d) return 1;
+        if (value == EOF) return 0;
         serial->flag = 1;
         serial->value = value;
     }