From 71ecdc1b55b31a81cf64c3358a5c56fe222a2e8b Mon Sep 17 00:00:00 2001
From: OBattler <oubattler@gmail.com>
Date: Thu, 29 Feb 2024 06:52:45 +0100
Subject: [PATCH] No longer raise TS# when (CS & 0xFFF8) is zero and (CS &
 0x0004) is not, fixes #4214.

---
 src/cpu/x86seg.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/cpu/x86seg.c b/src/cpu/x86seg.c
index c50c97a39..d912a755b 100644
--- a/src/cpu/x86seg.c
+++ b/src/cpu/x86seg.c
@@ -2401,7 +2401,7 @@ taskswitch286(uint16_t seg, uint16_t *segdat, int is32)
             ldt.base |= (readmemb(0, templ + 7) << 24);
         }
 
-        if (!(new_cs & 0xfff8)) {
+        if (!(new_cs & 0xfff8) && !(new_cs & 0x0004)) {
             x86ts(NULL, 0);
             return;
         }