From e3b9ed13fcf8100ba5bafef4edfe5d1f58a8e3c7 Mon Sep 17 00:00:00 2001
From: SarahW <pcem@pcem-emulator.co.uk>
Date: Thu, 5 Mar 2020 17:22:34 +0000
Subject: [PATCH] Pre-386 CPUs don't clear integer registers on soft reset.
 Patch from Greatpsycho.

---
 src/808x.c | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/src/808x.c b/src/808x.c
index 12566f9..f3f8d0f 100644
--- a/src/808x.c
+++ b/src/808x.c
@@ -677,8 +677,15 @@ void softresetx86()
         //rammask=0xFFFFFFFF;
         cpu_state.flags=2;
         idt.base = 0;
-        idt.limit = is386 ? 0x03FF : 0xFFFF;
-        EAX = EBX = ECX = EDX = ESI = EDI = EBP = ESP = 0;
+        if (is386)
+        {
+                idt.limit = 0x03FF;
+                EAX = EBX = ECX = EDX = ESI = EDI = EBP = ESP = 0;
+        }
+        else
+        {
+                idt.limit = 0xFFFF;
+        }
         x86seg_reset();
         flushmmucache();
         x86_was_reset = 1;