From abb5184ed4950e4e24f3fe4f4205cce8938f03a6 Mon Sep 17 00:00:00 2001
From: SarahW <pcem@pcem-emulator.co.uk>
Date: Tue, 30 Apr 2019 21:47:17 +0100
Subject: [PATCH] Loading SS in v86 mode (but not real mode) does reset the
 stack size. Fixes DOS programs in Windows 9x.

---
 src/x86seg.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/x86seg.c b/src/x86seg.c
index 8335897..bd7c6db 100644
--- a/src/x86seg.c
+++ b/src/x86seg.c
@@ -460,6 +460,8 @@ int loadseg(uint16_t seg, x86seg *s)
                         codegen_flat_ds = 0;
                 if (s == &cpu_state.seg_ss)
                         codegen_flat_ss = 0;
+                if (s == &cpu_state.seg_ss && (cpu_state.eflags & VM_FLAG))
+                        set_stack32(0);
         }
         
         if (s == &cpu_state.seg_ds)