From 0cbe6ae918527ceaf6875278e2bb15efba02c457 Mon Sep 17 00:00:00 2001
From: SarahW <pcem@pcem-emulator.co.uk>
Date: Thu, 19 Nov 2020 22:17:05 +0000
Subject: [PATCH] Ensure that any cycles spent when entering IRQ/NMI in
 interpreter are accounted for in the TSC, and by extension the timer system.

---
 src/386.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/src/386.c b/src/386.c
index 6ef54b6..fc9cb3b 100644
--- a/src/386.c
+++ b/src/386.c
@@ -214,10 +214,6 @@ void exec386(int cycs)
                                 }
                         }
                 }
-                ins_cycles -= cycles;
-                tsc += ins_cycles;
-                
-                cycdiff=oldcyc-cycles;
 
                 if (cpu_state.smi_pending)
                 {
@@ -291,6 +287,11 @@ void exec386(int cycs)
                 ins++;
                 insc++;
 
+                ins_cycles -= cycles;
+                tsc += ins_cycles;
+
+                cycdiff=oldcyc-cycles;
+
                 if (timetolive)
                 {
                         timetolive--;