From 60a373a7862a85b8b030ea1b18d01d364ddf8a8b Mon Sep 17 00:00:00 2001 From: Subv Date: Wed, 7 Jan 2015 10:10:58 -0500 Subject: Threads: Use a dummy idle thread when no other are ready. This thread will not actually execute instructions, it will only advance the timing/events and try to yield immediately to the next ready thread, if there aren't any ready threads then it will be rescheduled and start its job again. --- src/core/core.cpp | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) (limited to 'src/core/core.cpp') diff --git a/src/core/core.cpp b/src/core/core.cpp index 8ac4481c..98f8a7df 100644 --- a/src/core/core.cpp +++ b/src/core/core.cpp @@ -5,6 +5,7 @@ #include "common/common_types.h" #include "core/core.h" +#include "core/core_timing.h" #include "core/settings.h" #include "core/arm/disassembler/arm_disasm.h" @@ -23,7 +24,17 @@ ARM_Interface* g_sys_core = nullptr; ///< ARM11 system (OS) core /// Run the core CPU loop void RunLoop(int tight_loop) { - g_app_core->Run(tight_loop); + // If the current thread is an idle thread, then don't execute instructions, + // instead advance to the next event and try to yield to the next thread + if (Kernel::IsIdleThread(Kernel::GetCurrentThreadHandle())) { + LOG_TRACE(Core_ARM11, "Idling"); + CoreTiming::Idle(); + CoreTiming::Advance(); + HLE::Reschedule(__func__); + } else { + g_app_core->Run(tight_loop); + } + HW::Update(); if (HLE::g_reschedule) { Kernel::Reschedule(); -- cgit v1.2.3