From 8719e899225fdb9915a5181ed20807b019be6df2 Mon Sep 17 00:00:00 2001
From: Toni Wilen <twilen@winuae.net>
Date: Sat, 6 Jan 2018 20:34:05 +0200
Subject: [PATCH] Add extra cycles to prevent hang if all code and data in a
 loop is cached.

---
 newcpu.cpp | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/newcpu.cpp b/newcpu.cpp
index 474df49a..b2c86d6f 100644
--- a/newcpu.cpp
+++ b/newcpu.cpp
@@ -5750,6 +5750,7 @@ static void m68k_run_3ce (void)
 {
 	struct regstruct *r = &regs;
 	bool exit = false;
+	int extracycles = 0;
 
 	while (!exit) {
 		TRY(prb) {
@@ -5766,6 +5767,13 @@ static void m68k_run_3ce (void)
 					if (do_specialties (0))
 						exit = true;
 				}
+
+				// workaround for situation when all accesses are cached
+				extracycles++;
+				if (extracycles >= 8) {
+					extracycles = 0;
+					x_do_cycles(CYCLE_UNIT);
+				}
 			}
 		} CATCH(prb) {
 			bus_error();
-- 
2.47.3