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多机种模拟器Mednafen发布新版
支持机种
Atari Lynx [lynx]
GameBoy (Color) [gb]
GameBoy Advance [gba]
Neo Geo Pocket (Color) [ngp]
Nintendo Entertainment System/Famicom [nes]
PC Engine (CD)/TurboGrafx 16 (CD)/SuperGrafx [pce]
PC Engine (CD)/TurboGrafx 16 (CD)/SuperGrafx [pce_fast]
PC-FX [pcfx]
Sega Game Gear [gg]
Sega Genesis/MegaDrive [md]
Sega Master System [sms]
Sony PlayStation [psx]
Super Nintendo Entertainment System/Super Famicom [snes]
Virtual Boy [vb]
WonderSwan [wswan]
更新如下：
-- 0.9.34.1: --
May 11, 2014:
Fixed a bug in the sound format conversion code that caused garbled audio when using the new shared-mode WASAPI driver with a sound device configured with more than 2 speakers.
-- 0.9.34: --
May 10, 2014:
CDPLAY: Optimized the visualization code.
Added a new shared-mode WASAPI sound driver named "wasapish".
For consistency, the "wasapi" and "sdl" sound drivers no longer subtract the overhead latency from the desired buffer size when calculating the size of the buffer to use.
Changed the default value of setting "sound.buffer_time" to "0", to enable usage of partially-new code that calculates a buffer size automatically based on emulated system characteristics and the sound driver in use.
May 8, 2014:
GB: Fixed tilt sensor emulation that was broken in the May 6 IDIT_BUTTON_ANALOG packing change.
Updated the embedded copy of libmpcdec to the latest SVN copy; fixes problems with playback of older SV7 format files(with the CD emulation code).
Wrote threading code to target Win32 APIs directly, rather than rely on SDL's threading support, for the Windows build.
May 7, 2014:
GBA, NES: Resolved some compiler warnings.
No longer compile with -mstackrealign for the Windows build, instead using "__attribute__((force_align_arg_pointer))" where appropriate(e.g. Win32 and SDL callbacks).
Updated the cheat console-interface code to use a condition variable instead of sleep-waiting.
Remove an erroneous extra mutex unlock around a driver-side message queue.
May 6, 2014:
Pack "IDIT_BUTTON_ANALOG" and "IDIT_RUMBLE" type input device data more tightly(only aligning to a byte-boundary now, and packing as 16-bits rather than 32-bits).
Calculate and send a device type number for each emulated port with the netplay login data(the data is not used currently by mednafen-server, but will be in the future).
May 5, 2014:
Reworked the multithreaded CD reading code to use condition variables, rather than repeatedly unlocking, sleeping, and locking mutexes. This should help with performance a bit, and will prevent a lot of unnecessary CPU/CPU core wakeups, especially after loading multiple disc images with M3U files(since a read thread is created for each disc image, at least when CD image memcaching is disabled, the default).
Moved common parts of the MDFNI_Load and MDFNI_LoadCD functions into a separate function to reduce code duplication.
Emulation modules' LoadCD functions all now throw exceptions on error, so changed the function pointer prototype to remove the return type(void all the way!).
May 4, 2014:
PCE, PCE_FAST, PC-FX, MD: Make better use of exceptions(and handle some that were not handled properly before) in the game loading and initialization code paths.
Emulation modules' Load and LoadCD functions may now throw exceptions upwards instead of calling MDFN_PrintError() and returning 0.
Reworked IPS parsing and applying code to use exceptions, and Stream instead of stdio file access.
Reworked MDFNFILE to use exceptions to signal errors on file loading(the memory-stream functions provided primarily for the NES module's use still don't throw exceptions, however).
Lynx: Removed undocumented(and largely pointless) support for loading a gzip or ZIP-compressed "lynxboot.img" firmware file.
GB: Made game loading code more resilient to avoid leaking memory if an error occurs during game load.
Added a gcc format string check attribute to an MDFN_Error constructor, and fixed a few minor format string problems this checking exposed.
May 3, 2014:
GBA: Reworked save file type parsing code to use FileStream instead of stdio.
GBA: Sanitize a few variables in the flash memory save state loading code to prevent malicious save states blah blah blah.
GBA: Added masks to array access in the EEPROM emulation code to prevent malicious save states from corrupting the heap.
GBA: EEPROM file loading code now errors out if there's an error opening or reading the file(but not if the error is that it simply does not exist), or the file is of an unexpected/incorrect size.
May 2, 2014:
NES: The filename scanning to select region/video standard(NTSC or PAL), controlled via the "nes.fnscan" setting, now uses the filename and path stored in the ZIP file(when loading a NES game from a ZIP file) rather than the name of the ZIP file itself. Additionally, the filename scanning feature no longer is affected by strings in the file extension(though I doubt this will affect anyone, as you'd have to be pretty deranged to name a NES game file like that).
May 1, 2014:
PSX: Made CD-DA playback position report code more correct and resilient in regards to Q subchannel checksum errors.
April 30, 2014:
PSX: Added settings to allow for scaling the analog stick axis values, to work around the issue of different logical ranges of motion for PS1 DualShock and Dual Analog controllers versus more modern PC-compatible gamepads.
April 29, 2014:
Added logic to gracefully fall back to other fullscreen stretch modes if the current fullscreen resolution is too low to support the stretch mode selected.
April 28, 2014:
Added support for mapping joystick axes to lightgun screen coordinates; however, the configuration must be done manually by editing the configuration file. (Additionally, the translation will not function properly if the software-rotation feature(via ALT+O) is used.) Example:
psx.input.port2.guncon.x_axis joystick 630f0eab74165481 00008000
psx.input.port2.guncon.y_axis joystick 630f0eab74165481 00008001
Alternate coordinate translation for fullscreen mode, intended for physical modern lightgun and pointer devices:
psx.input.port2.guncon.x_axis joystick 630f0eab74165481 00048000
psx.input.port2.guncon.y_axis joystick 630f0eab74165481 00048001
April 27, 2014:
GB: Cleaned up the memory-mapper code, fixing a few bugs that allowed some games(like "Best of the Best Championship Karate") to cause Mednafen itself to crash.
GB: Fixed MBC7 support(it's been broken in Mednafen for a loooong time).
GB: Disabled the broken simulation of HDMA overhead that seemed to be doing more harm than good; fixes problems with unstable framerates and inaccurate slowdown on some GBC games(such as "Shantae").
MD, NGP, WonderSwan: Fixed potential memory leaks(memory was not really leaked due to how Mednafen is currently structured, but they could have become problematic leaks in the future).
Merge clamp.h into math_ops.h.
More #include statement changes in emulation module sources to use #include <mednafen/BLAH> style instead of #include "../BLAH".
April 26, 2014:
Fixed a bug that was causing the output image to be distorted when rotation(via ALT+O) was used in conjunction with a *.videoip setting value of "x" or "y".
Added a test/demo module to help work out bugs in the video processing code paths.
April 25, 2014:
Reworked the build system and numerous source code and header files to allow for less sloppiness with -I include paths.
GB: Statically-allocate a 320-byte graphics buffer instead of malloc()'ing it.
April 24, 2014:
Fixed a problem with the configure script so it will (hopefully) no longer error out when cross-compiling.
MD: memset() line buffer padding areas to prevent sprite rendering from reading from uninitialized memory.
MD: Fixed violations of strict aliasing in the 68K CPU core.
PC-FX, VB: Replaced SoftFloat, used in FPU emulation, with newly-written-while-sleep-deprived code. It's possible this may cause regressions, since floating-point stuff is rather hairy...
Fixed an ancient bug that made iterative multibyte-value cheat searches extremely unreliable.
Fixed a bug that broke the output image when displaying a source image with multiple horizontal resolutions at a specific rotation angle(selected via ALT+O).
Added support for negative <system>.scanlines setting values, which will change scanline behavior and size to overlay/obscure the previous field's line data if "video.deinterlacer" is set to "weave".
Added setting "video.deinterlacer", default value of "weave".
NES: Align a temporary line buffer array to prevent the possibility of a CPU fault and/or poor performance on non-x86 platforms.
Simplified handling of muli-horizontal-resolution frames by changing "LineWidths"'s type from MDFN_Rect(representing x offset and width) to a simple int32(representing just width).
April 23, 2014:
GB: Added support for custom palettes that specify BGP, OBP0, and OBP1 colors independently.
April 18, 2014:
PC-FX, VB: Corrected the debugger's disassembly of the 5-bit sign-extended immediate form of "mov" (the disassembler was failing to sign-extend).
http://mednafen.sourceforge.net/
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