Mednafen 0.9.39.1

多機種模擬器 Mednafen 發布新版，更新如下 :

-- 0.9.39.1: --

August 22, 2016:
 SS: Settings "ss.dbg_mask" and "ss.dbg_exe_cdpath", and the functionality they control, are no longer available unless Mednafen has been compiled with
 "MDFN_SS_DEV_BUILD" defined(such as with -DMDFN_SS_DEV_BUILD=1 in CPPFLAGS env var passed to configure).

 SS: Replaced some instances of case ranges with more portable constructs.

August 20, 2016:
 SS: Run VDP1 vblank erase at end of vblank, so we know how much time we have and thus how many entries in the framebuffer we'll be able
 to erase.  Currently, the available time calculations are generous, allowing for a bit more erase than what's possible on a Saturn, but we can tighten
 it up in the future once it's fairly certain there aren't any more event scheduling accuracy issues.  Fixes FMV subtitle text in "Panzer Dragoon".

 SS: Fixed a bug that caused VDP2 frames to be short by 1 to 3 CPU cycles.

 SS: Reschedule the SH-2 DMA event handler as necessary to prevent it from running when the SH-2 bus is locked.

 SS: Force the SH-2 DMA and SCU DMA event handlers to be rescheduled to SH7095_mem_timestamp time when necessary.

 SS: Check for pending events right before calling VDP1, VDP2, SMPC, and SCU regs read/write handlers, which may then call their own event update
 functions.

August 17, 2016:
 Fixed an old bug that could cause a startup crash on Windows systems without XInput DLLs installed(e.g. some Windows XP systems).

 NES: Fixed a very old bug triggered when disabling(via CTRL+1) the background layer, that would cause sprite pixels to also be visually disabled too under certain
 circumstances.

August 16, 2016:
 MD, PC-FX: Fixed several instances of left-shifting negative values.

August 15, 2016:
 SS: Fixed a compilation error when compiling with the debugger disabled("--disable-debugger" passed to configure).

 Added configure options "--with-external-mpcdec" and "--with-external-tremor", for distribution packagers.

 SS, SNES-Faust: Fixed a few issues causing compilation errors on clang.

 SS: Tweaked how seek command pause works; fixes a lockup issue in "Astal".

August 11, 2016:
 WonderSwan: Fixed a bad usage of "char" without an unsigned/signed qualifier.

 SS: Slow down SCU DMA to VDP2 VRAM under certain conditions.

August 10, 2016:
 SS: Adjusted VDP1 polygon and line draw commands to behave as if SPD=1, ECD=1 when color mode >= 6; fixes missing graphics problem in "Hi-Octane".

August 8, 2016:
 SS: Reworked SCU DMA's timekeeping and scheduling code to be more accurate; reduces the size of the flickering section of the FMV in "Lunar".

 SS: Fixed handling of CPU<->SMPC open bus.

August 7, 2016:
 Relaxed the CloneCD Q subchannel sanity checks to allow a track number of 0xAA(leadout).

August 6, 2016:
 SS: Implemented kludgy(incomplete) support for quasi-illegal window X start position values; fixes ground layer issues in the forest stage of
 Panzer Dragoon 2.

http://mednafen.fobby.net/