From 3afec122524f351fb9600fcd3c70c2bdcc8d70a9 Mon Sep 17 00:00:00 2001
From: SarahW <SarahW@localhost>
Date: Thu, 6 Apr 2017 21:51:35 +0100
Subject: [PATCH] Fix 286/386/486 interpreter timing granularity at 5us.

---
 src/386.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/386.c b/src/386.c
index d4d7bd6..998f4d1 100644
--- a/src/386.c
+++ b/src/386.c
@@ -214,6 +214,7 @@ void exec386(int cycs)
         int tempi;
         int cycdiff;
         int oldcyc;
+        int cycle_period = cycs / 2000; /*Use a 5us timing granularity*/
 
         cycles+=cycs;
 //        output=3;
@@ -223,7 +224,7 @@ void exec386(int cycs)
                 oldcyc=cycles;
                 timer_start_period(cycles << TIMER_SHIFT);
 //                pclog("%i %02X\n", ins, ram[8]);
-                while (cycdiff<100)
+                while (cycdiff < cycle_period)
                 {
             /*            testr[0]=EAX; testr[1]=EBX; testr[2]=ECX; testr[3]=EDX;
                         testr[4]=ESI; testr[5]=EDI; testr[6]=EBP; testr[7]=ESP;*/