Reboot broken for Turbo-R

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Users reported inability to restart: http://www.msx.org/forum/msx-talk/emulation/cocoamsx-13

Machine: Panasonic FS-A1ST (Turbo-R)

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To reproduce: wait until the logo animation completes, then reboot. Issue isn't isolated to Snow Leopard (reproduced on 10.8.4).

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The bug is also present in blueMSX 2.8.2 (related to emulation core)

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Until there's a proper fix for this issue, commit 03f521b adds an option to perform a hard reset, which can be done by pressing Option+Command+R (or holding down Option while the MSX menu is open).

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I'm now observing this in other systems (e.g. MSX2 Yamaha YIS), and upon emulator shutdown. Emulator hangs, because pthread_join and semaphore_wait are causing a deadlock.

Relevant threads:

  thread #1: tid = 0x41d784, 0x00007fff98aa748a libsystem_kernel.dylib`__semwait_signal + 10, queue = 'com.apple.main-thread', stop reason = signal SIGSTOP
    frame #0: 0x00007fff98aa748a libsystem_kernel.dylib`__semwait_signal + 10
    frame #1: 0x00007fff9925d01d libsystem_pthread.dylib`pthread_join + 445
    frame #2: 0x000000010019b76b CocoaMSX`-[CMThread join](self=0x00006100014b3e60, _cmd=0x00007fff918dfbab) + 43 at CMThread.m:79
    frame #3: 0x000000010019b84f CocoaMSX`archThreadJoin(thread=0x00006100014b3e60, timeout=3000) + 31 at CMThread.m:112
    frame #4: 0x000000010001ef2f CocoaMSX`emulatorStop + 127 at Emulator.c:523
    frame #5: 0x000000010018310a CocoaMSX`-[CMEmulatorController stop](self=0x0000000100d01de0, _cmd=0x00007fff8f08d1cf) + 106 at CMEmulatorController.m:628
    frame #6: 0x000000010018e7ba CocoaMSX`-[CMEmulatorController windowWillClose:](self=0x0000000100d01de0, _cmd=0x00007fff92c1e82f, notification=0x0000608000041b60) + 42 at CMEmulatorController.m:2911
    frame #7: 0x00007fff8e30845c CoreFoundation`__CFNOTIFICATIONCENTER_IS_CALLING_OUT_TO_AN_OBSERVER__ + 12
    frame #8: 0x00007fff8e1f8634 CoreFoundation`_CFXNotificationPost + 3140
    frame #9: 0x00007fff9bb0daa1 Foundation`-[NSNotificationCenter postNotificationName:object:userInfo:] + 66
    frame #10: 0x00007fff924f8b94 AppKit`__18-[NSWindow _close]_block_invoke + 182
    frame #11: 0x00007fff924f8a96 AppKit`-[NSWindow _close] + 376
    frame #12: 0x00007fff925cb106 AppKit`-[NSWindow _closeForTermination] + 96
    frame #13: 0x00007fff8e27dd80 CoreFoundation`-[NSArray makeObjectsPerformSelector:] + 496
    frame #14: 0x00007fff925caf00 AppKit`-[NSApplication _deallocHardCore:] + 331
    frame #15: 0x00007fff925c7a17 AppKit`-[NSApplication terminate:] + 1943
    frame #16: 0x00007fff926b02ff AppKit`-[NSApplication _terminateFromSender:askIfShouldTerminate:saveWindows:] + 240
    frame #17: 0x00007fff926b017e AppKit`__52-[NSApplication(NSAppleEventHandling) _handleAEQuit]_block_invoke + 46
    frame #18: 0x00007fff8e2688ec CoreFoundation`__CFRUNLOOP_IS_CALLING_OUT_TO_A_BLOCK__ + 12
    frame #19: 0x00007fff8e25a9f5 CoreFoundation`__CFRunLoopDoBlocks + 341
    frame #20: 0x00007fff8e25a1ae CoreFoundation`__CFRunLoopRun + 910
    frame #21: 0x00007fff8e259bd8 CoreFoundation`CFRunLoopRunSpecific + 296
    frame #22: 0x00007fff97bb056f HIToolbox`RunCurrentEventLoopInMode + 235
    frame #23: 0x00007fff97bb01ee HIToolbox`ReceiveNextEventCommon + 179
    frame #24: 0x00007fff97bb012b HIToolbox`_BlockUntilNextEventMatchingListInModeWithFilter + 71
    frame #25: 0x00007fff922d88ab AppKit`_DPSNextEvent + 978
    frame #26: 0x00007fff922d7e58 AppKit`-[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] + 346
    frame #27: 0x00007fff922cdaf3 AppKit`-[NSApplication run] + 594
    frame #28: 0x00007fff9224a244 AppKit`NSApplicationMain + 1832
    frame #29: 0x0000000100170f62 CocoaMSX`main(argc=3, argv=0x00007fff5fbff748) + 34 at main.m:27
    frame #30: 0x0000000100001a44 CocoaMSX`start + 52

* thread #15: tid = 0x41d7d8, 0x00007fff98aa251a libsystem_kernel.dylib`semaphore_wait_trap + 10
  * frame #0: 0x00007fff98aa251a libsystem_kernel.dylib`semaphore_wait_trap + 10
    frame #1: 0x000000010003587a CocoaMSX`archSemaphoreWait(semaphore=0x0000610000c0d610, timeout=-1) + 26 at CocoaSema.c:57
    frame #2: 0x00000001000a91f6 CocoaMSX`archEventWait(event=0x00006100002266e0, timeout=-1) + 38 at CocoaEvent.c:68
    frame #3: 0x000000010001f8c2 CocoaMSX`WaitForSync(maxSpeed=0, breakpointHit=0) + 562 at Emulator.c:795
    frame #4: 0x0000000100006107 CocoaMSX`doSync(time=275600539, breakpointHit=0) + 55 at Board.c:523
    frame #5: 0x0000000100007a2b CocoaMSX`onSync(ref=0x0000618000244bc0, time=275600539) + 27 at Board.c:570
    frame #6: 0x0000000100008470 CocoaMSX`boardTimerCheckTimeout(dummy=0x0000000000000000) + 192 at Board.c:1416
    frame #7: 0x000000010014f1ad CocoaMSX`r800Execute(r800=0x000000010207c000) + 221 at R800.c:6043
    frame #8: 0x000000010000757d CocoaMSX`boardRun(machine=0x0000000102065e00, deviceInfo=0x0000000100478080, mixer=0x000000010203a600, stateFile=0x0000000000000000, frequency=3579545, reversePeriod=50, reverseBufferCnt=300, syncCallback=0x000000010001f690) + 1213 at Board.c:803
    frame #9: 0x000000010001f642 CocoaMSX`emulatorThread + 290 at Emulator.c:392
    frame #10: 0x000000010019b71a CocoaMSX`pThreadCallback(data=0x0000610000c0d630) + 74 at CMThread.m:93
    frame #11: 0x00007fff9925c05a libsystem_pthread.dylib`_pthread_body + 131
    frame #12: 0x00007fff9925bfd7 libsystem_pthread.dylib`_pthread_start + 176
    frame #13: 0x00007fff992593ed libsystem_pthread.dylib`thread_start + 13