From d6048dc646cd6940751ca1bdfdc53fe8a331b6cf Mon Sep 17 00:00:00 2001
From: "Unknown W. Brackets" <checkins@unknownbrackets.org>
Date: Sat, 9 Nov 2013 22:31:12 -0800
Subject: [PATCH] Don't burn the cpu while idle in multithread.

---
 Core/System.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Core/System.cpp b/Core/System.cpp
index 81de7a3db5..6c044bf5ce 100644
--- a/Core/System.cpp
+++ b/Core/System.cpp
@@ -345,6 +345,9 @@ void PSP_RunLoopUntil(u64 globalticks) {
 			// TODO: Something smarter?  Or force CPU to bail periodically?
 			while (!CPU_IsReady()) {
 				gpu->RunEventsUntil(CoreTiming::GetTicks() + msToCycles(1000));
+				if (coreState != CORE_RUNNING) {
+					CPU_WaitStatus(cpuThreadReplyCond, &CPU_IsReady);
+				}
 			}
 		} else {
 			ERROR_LOG(CPU, "Unable to execute CPU run loop, unexpected state: %d", cpuThreadState);