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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：
-- 0.9.33.3: --
April 16, 2014:
Reworked the FPS calculation algorithm to produce more accurate FPS values.
Added a manifest file that's embedded into the Windows executable, to ensure that noxious DPI virtualization and scaling available on Windows Vista and newer will not be used with Mednafen.
Added code to disable DWM composition when running on pre-Windows 8 systems, to ensure better performance and less video juddering. (Sadly, it's not possible to disable desktop composition in this manner on Windows 8 and later)
PCE, PCE_FAST: Added a missing ADPCM playback variable to save states; fixes the problem of severe ADPCM sound distortion when loading save states that are saved during ADPCM playback(especially noticeable with the state rewinding feature).
April 15, 2014:
Modified MDFN_RemoveControlChars() to not kill non-7-bit-ASCII text.
April 12, 2014:
Misc minor code cleanups and fixes for some compiler warnings.
April 11, 2014:
NES: Fixed broken emulation of board "UNL-Sachen-8259B"(used in the game "Silver Eagle").
April 10, 2014:
Fixed the with-drop-shadow internal text drawing routine to not draw horizontally one pixel beyond the specified maximum width in some circumstances.
April 9, 2014:
SNES: Altered a code construct to hopefully resolve a reported compiler error with clang.
Error out of save state loading when the version specified in the save state is invalid.
Call SDL_WM_SetIcon() before SDL_SetVideoMode(), to fix the problem of the missing Mednafen icon on some platforms/window managers.
Fixed a minor integer overflow issue in the core PSF loading code.
NES: Fixed some problems in the ROM image file loading code, including a potential heap overflow vulnerability.
-- 0.9.33.2: --
March 24, 2014:
PSX: Fixed a small MDEC emulation bug; fixes the hang during startup in "SimCity 2000".
March 17, 2014:
The order of evaluation of the frame advance and run normal command keys/hotkeys is now based on whether or not we're currently in frame advance mode, to allow for the derivation of a single-press pause/unpause key(effected by the user mapping both functions to a single key).
March 15, 2014:
Renamed the log2 LUT array in the mpcdec code to avoid shadowing the math library function log2().
NES: Fixed the problem of the VS Unisystem DIP switch position display(accessed via the "F6" key) being invisible.
PCE: Fixed broken MCGenjin support.
March 13, 2014:
CDPLAY: Tweaked visualization code to reduce memory and CPU usage.
March 11, 2014:
Lynx: Minor code cleanups.
-- 0.9.33.1: --
March 8, 2014:
Fixed compiler errors when compiling without the debugger.
Fixed a couple of memory leaks.
PSX: Made better use of exceptions in the loading and initialization code paths(and avoid leaking memory if a part of the process fails).
PSX: Protect against sound buffer overflow without causing a call to abort() so that using save states(when they're added) or power toggling/resetting in the debugger while in step mode is safer.
PSX: Output of debug messages to stdout and stderr is now controlled via the "psx.dbg_level" setting, whose default value of "0" disables almost all debug messages. Set the setting to "3" to obtain roughly the same output as previous versions of Mednafen.
March 1, 2014:
Modified the simple interpolation pixel shader code to avoid using the GLSL 1.3 function "round()", for better compatibility with some OpenGL implementations.
-- 0.9.33: --
February 25, 2014:
PSX: Reworked CD-XA ADPCM playback buffering and sector buffering per tests on a PS1; fixes the problem of cut-off voices in some games("Breath of Fire 4" for example), and *should* increase the playability of some games like "Um Jammer Lammy". Also, these changes seem to have somehow fixed the corrupted boss graphics in the first boss fight in "Captain Commando".
PSX: Refactored sector reading code, and added support for reading from the leadout area(the data is synthesized, though).
February 15, 2014:
Implemented simple dithering in the 16-bit->8-bit sound sample conversion code.
Added checks for legacy DOS device filenames to the untrusted file include path checking code used for Win32 and DOS.
February 11, 2014:
Added support for "FOUR_CHANNEL_AUDIO", "TWO_CHANNEL_AUDIO", "COPY", "NO COPY", "PRE_EMPHASIS", and "NO PRE_EMPHASIS" directives in the cdrdao TOC-format file parsing and Q subchannel synthesis code.
PC-FX, VB: Fixed V810 "mul" instruction overflow flag calculation per tests on a PC-FX.
February 2, 2014:
PSX: Added settings "psx.slstart", "psx.slstartp", "psx.slend", and "psx.slendp" to control the vertical positioning and viewable area(more useful with PAL).
NES: If the value of the nes.slstart? setting is larger than the value of the nes.slend? setting, swap the values when calculating the surface rectangle.
Rewrote the simple interpolation pixel shader code(for "ipsharper", "ipxnoty", "autoipsharper", etc.) to fix problems with the autoip* shaders sometimes causing diagonal distortion lines in some scenarios.
February 1, 2014:
Fixed a bug that caused major graphics corruption when rotation(ALT+O) is used with a multiple-horizontal-resolution source image(emulation modules that can produce such an image include pce, pce_fast, pcfx, psx, and snes).
Fixed a bug in the SDL soft stretching with rotation code path that effectively caused the source surface rectangle Y offset to be ignored(with varying effects from emulation module to emulation module).
GBA: Implemented support for 16bpp video output format.
GBA: Implemented usage of MDFN_MidLineUpdate().
January 29, 2014:
GB, NES, PCE_FAST, SNES: Implemented usage of MDFN_MidLineUpdate() call to allow for 0 video frame latency in some environments in the future(though this is not going to be possible for the VB module due to how it renders); and, we still need to figure out the semantics of handling interlaced video this way.
January 24, 2014:
Replaced some usage of snprintf() with trio_snprintf().
Replaced some usage of round(...) with floor(0.5 + ...) where appropriate, to work with the non-C99-compliant libc distributed with the last stable DJGPP release; however, we didn't have too many uses of round(), but it may make sense in the future to just insert our own custom round() function instead to preserve code clarity. (Note that floor(0.5 + ...) does not always give the same result as round(), as it rounds negative midway points(-0.5,-1.5, etc.) differently).
January 23, 2014:
Made some changes to the build system to support a DOS port.
January 18, 2014:
VB: Moved initialization of some variables from the VSU emulation class destructor to the constructor(must have been asleep or something when that code first went in); fixes audio "pop" that could sometimes be heard on VB emulation startup.
January 17, 2014:
Use XInputGetStateEx() instead of XInputGetState(), if available, to allow for usage of the XBox 360 controller guide button within Mednafen on MS Windows.
January 13, 2014:
In the TOC file reading code, set disc type based on CD_DA/CD_ROM/CD_ROM_XA string.
In the CUE sheet reading code, if any tracks are MODE2, assume the disc type is 0x20(CD-XA).
January 5, 2014:
PSX: Moved CD-XA ADPCM resampling code from spu.cpp to cdc.cpp.
PSX: CD-XA ADPCM audio is now resampled using the proper(ish) impulse responses, as observed from running CD-R-eating-nom-nom-nom tests on a PS1(this improves CD-XA ADPCM quality a bit compared to what it was in previous versions of Mednafen).
PSX: Don't play CD-XA ADPCM sectors if the "realtime" bit in the subheader isn't set to 1(per an unintentional test on a PS1).
January 1, 2014:
Synchronize raw input mapping structures to setting strings when an emulated input device configuration is finished/interrupted, instead of unconditionally on exit or emulated device change, to prevent pollution of the primary settings file when using per-module settings override files(though in that context it doesn't make much sense to override the emulated input device mappings that way, but we're going to add per-game settings override support eventually).
Allow for overriding the "video.glvsync" setting and command key input mappings via the per-module settings override files.
December 31, 2013:
Added support for per-module settings overrides(specified via placing settings in files named such as "nes.cfg", "pce.cfg", "pce_fast.cfg", etc.). The settings override files will be considered read-only, and should not alter the contents of the primary settings file unless an in-emulator configuration process occurs that builds on the current effective setting value.
PCE, PCE_FAST: Don't generate a command error if a track number too high is specified via CD commands 0xD8 and/or 0xD9; instead, treat it as if the leadout track was specified. I'm not certain if this is correct behavior as per the actual system, but that'll have to wait until I'm able to run some tests. Fixes a startup lockup in "Star Mobile".
December 22, 2013:
PC-FX: CD-DA impulse volume is now adjusted based on the current CD-DA playback rate.
PCE, PC-FX: Recalculated the CD-DA impulse phase adjustment convolution table to fix a tiny quality issue.
December 18, 2013:
PC-FX: Implemented ADPCM phase-correction filtering(related to the Dec. 1 resampling changes), and modified the ADPCM volume handling code to not throw away so much ADPCM output sample precision.
December 1, 2013:
PCE: Changed default value of "pce.psgrevision" from "huc6280a" to "match"; this causes revision "huc6280" to be used for non-SuperGrafx games, and "huc6280a" to be used for SuperGrafx games and HES playback(since SuperGrafx emulation is forcibly enabled during HES playback).
PCE, PC-FX: Implemented new sound resampling and filtering code(actually we did this in November, but it's been a definite work-in-progress since then, and still is to a degree); benefits include better frequency response(especially for CD-DA),
and more flexible filtering options(code-wise, for the future). Downsides include increased CPU utilization, and the output sound rate has a degree of error.
Minimum CPU usage(and quality) with the new resampling code can be achieved with the following setting values:
pce.resamp_quality 0
pce.resamp_rate_error 0.0000350
pcfx.resamp_quality 0
pcfx.resamp_rate_error 0.0000350
Maximum CPU usage(and quality, though arguably overkill) can be achieved with:
pce.resamp_quality 5
pce.resamp_rate_error 0.0000001
pcfx.resamp_quality 5
pcfx.resamp_rate_error 0.0000001
PCE: Removed support for the "enhanced" PSG revision(previously selectable by pce.psgrevision setting), as it had negligible benefits, caused problems with at least one game, and made the PSG emulation code slightly more complex.
PCE: Added setting "pce.adpcmextraprec", default value of 0, that when enabled will do the same thing that the PCE_FAST module is now hardcoded to do with ADPCM predictor precision.
PCE_FAST: Reduced Blip_Buffer attenuation of upper frequencies with CD-DA playback, and also to a lesser degree PSG sound.
PCE_FAST: Removed stubish Tsushin Booster code; the regular "PCE" module's better for emulating Tsushin Tool anyway, as it includes keyboard emulation.
PCE_FAST: Output full 12-bit ADPCM predictor instead of truncating it to 10-bits, for less whining in ADPCM sounds; since we're targetting PCE_FAST more for compatibility and subjective quality than outright accuracy per-se.
PCE_FAST: Utilizing some macro-magic, only use computed goto on compilers known to support it.
PCE_FAST: PSG revision changed to HuC6280A instead of "Enhanced".
November 24, 2013:
Reduced the maximum supported sound output rate from 1048576Hz to a much more reasonable 192000Hz(significantly eases proper sound processing algorithm design and testing).
November 16, 2013:
PCE_FAST: Fixed a potential crash after a garbage/corrupted ROM image is loaded.
November 12, 2013:
Reworked the debugger UI code to fix various thread safety issues by running it(drawing, and input processing) in the game/emulation thread instead of the main/video blit thread.
November 9, 2013:
PCE: During HES playback initialization, the second emulated VDC's registers are now initialized properly so that the emulation event system isn't overtaxed(which drove up CPU usage considerably during HES playback). It may be prudent to look into implementing an optimization(based on VDC CR and DCR IRQ enable bits) in the HuC6270 emulation code so that a similar issue doesn't occur when the user has set "pce.forcesgx" to "1" and is emulating a non-SuperGrafx game; however, this could have a performance PENALTY for SuperGrafx games due to the required need to recalculate events on every VDC write(unless we're smart and only recalculate when the IRQ enable bits change?).
November 7, 2013:
Reworked settings string->floating-point conversion code to not use ancient(and apparently buggy) code from glibc, and instead rely on the system's libc(which is ostensibly less buggy!); also changed some of the NES setting structure entries so that the default values and minimum/maximum values have the same number of places after the decimal point to forestall any future similar problems with libc strtod().
November 3, 2013:
PSX: Implemented forced synchronization before calling debugger interface core hook.
Changed debugger CPU core hook semantics so that the core emulation code will only call the driver-side debugger interface code when absolutely necessary(which will allow for proper emulator core forced synchronization when in step mode without killing performance, which is a prerequisite for the register view, save states, and reset/power to work properly in step mode; actually implementing said forced synchronization will have to be done carefully on a core-by-core basis, though, in addition to other changes to make major machine state changes work reliably when in step mode).
November 1, 2013:
PCE_FAST: Changed CD-DA Blip_Synth treble parameter so that the upper parts of the CD-DA frequency spectrum aren't attenuated so much.
PCE_FAST: Removed PC-FX-specific code from the CD drive emulation code.
PCE_FAST: Forked PSG, CD interface unit, and CD drive emulation code so that it's no longer shared with the regular PCE and PC-FX(for CD drive) modules.
October 25, 2013:
SNES: Added support for Game Genie codes.
SNES: Simplified(and hackified gloriously!) and reduced memory usage of SuperFX memory mapping code.
October 22, 2013:
A name(used in the window title bar) for loaded CD games will now be extracted from the filepath, as was already done for cart-based games.
October 21, 2013:
Reworked cheat loading and saving code to use FileStream.
Renamed Stream::printf to Stream::print_format to avoid head-desking.
GBA, PCE, PCE_FAST: Rewrote custom palette loading code to use FileStream, and removed the undocumented gzip'd custom palette support in the process.
October 20, 2013:
PSX: Added limited support for entering "GameShark" cheats in the cheat interface(not every code type is supported), and some cheats may not work properly anyway due to differences in the timing of RAM patching in Mednafen vs on a actual GameShark.
Cheat support:
The cheat interface's cheat list now displays less information overall, but is better structured.
Fixed broken cheat conditions when condition unit size is greater than 4 bytes(due to a missing typecast).
The interface for adding and modifying a cheat now exposes more of the core cheat engine functionality.
Added support for RAM copy and RAM repeat/fill type cheats to the cheat engine.
October 18, 2013:
NES: Added support for entering "Pro Action Rocky" cheats in the cheat interface.
GB: Added support for entering "GameShark" cheats in the cheat interface.
Refactored NES and GameBoy Game Genie decoding code from the Mednafen core into the NES and GameBoy cores respectively.
Made some changes to the cheat interface:
Cheat text size is now larger with higher resolutions(though the size increase is a bit too granular).
When asking to add a new cheat, the default will now be 'Y' instead of 'N'.
System-specific cheat format adding support(e.g. Game Genie) has been moved to the main menu.
When adding a system-specific cheat(e.g. Game Genie), the code is now asked for before the name, and the default for the name is set to the code text.
October 10, 2013:
Lynx: Added emulation of Lynx 2 stereo audio registers, based on patches submitted by "sage".
October 8, 2013:
Added a very simple double-precision floating-point range test to tests.cpp.
October 1, 2013:
PC-FX: Changed the default value of setting "pcfx.rainbow.chromaip" from "1" to "0".
When reading the TOC from a physical CD with the READ TOC command, now use response format 0010b instead of response format 0000b so that we can get the disc type field stored in the TOC.
September 29, 2013:
Fixed a bug that was causing the CD reading code to get confused about whether a disc(or drive dray) was inserted or ejected when the insert/eject MMC command failed, and updated the documentation in regards to physical discs and multiple CD games.
Added more verbose error messages when errors with libcdio occur in regards to reading a physical CD.
September 27, 2013:
PSX: Improved DualShock emulation accuracy per tests on a DualShock; rumble now works in "Final Fantasy 8", and possibly other games where rumble was previously non-working.
Reworked how joystick/gamepad rumble is handled on Linux, to perform better and hopefully not cause kernel panics anymore(or at least not so often as the old code did).
September 25, 2013:
CDPLAY: More Q subchannel information is now displayed.
PSX: Removed an unnecessary and borked memset() statement from mdec.cpp.
Compile with "-fno-aggressive-loop-optimizations", if the option is detected to be supported by the compiler. I don't particularly trust that new optimization in gcc 4.8.x.
September 22, 2013:
SNES: Eliminated bsnes' internal framebuffer, and added a scanline render callback into the Mednafen interface code.
SNES: Reduced size of sound resampling buffer.
http://mednafen.sourceforge.net/
http://forum.fobby.net/index.php?t=thread&frm_id=4&
Mednafen 0.8.D之后就没再介绍过这个模拟器, 主要是之前作者发布的都是wip版, 这次的0.9.33好像是正式版, 相对于0.8来说是质的飞跃, 加入了对PS、SNES、VB、MD、GG、SMS的支持
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发表于 2014-3-1 17:57:34
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发表于 2014-3-1 20:42:42
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