- Added GZ / ZIP / JMA archive support [Nach, NSRT team]
- Fixed bug in APU ADDW/SUBW opcode flags, thanks to DMV27, anomymous for info
- Mosaic support is now (mostly) hardware accurate, thanks to TRAC for info
- Fixed a bug in SC tilemap clipping, fixes Seiken Densetsu 3
- Emulated pseudo-hires mode, uses a fairly poor color filter to simulate TV effect, the same one that SNES9x and Super Sleuth use
- Rewrote the ROM loading code to be more port-friendly, and improved header detection
- Added C4 emulation -- mostly correct. Only minor bugs remain, possibly not C4 related [Nach, byuu], also uses code from zsKnight, Overload, and anomie
- Fixed noise channel generation for DSP, fixes Dual Orb 2 opening. Thanks to DMV27 for info
- Fixed bug with DSP VxSRCN registers, fixes horrible sound corruption in Mortal Kombat 2/3
- Modified DSP KON register reading to act according to anomie's research, while still allowing Der Langrisser, etc. to play sounds correctly
- Fixed a bug in CPU BCD math, fixes numbers in SimEarth, thanks to DMV27 for info
- Rewrote the windows port from scratch
- -- Added triple buffering support (buggy)
- -- Added DirectInput (joypad) support, allows both keyboard and joypad to be mapped to the same SNES controller button. Only one controller supported for this release, will be improved shortly
- -- Added pause key (mapped to Pause/Break)
- -- bsnes no longer consumes CPU time when paused or when no ROM is loaded
- -- Updated DirectDraw to 7, and added video mode configuration options to configuration file
- -- Video modes can specify screen width+height, refresh rate, and render width+height
- -- Added CTRL+[1-0] hotkeys for swapping video modes
- -- Added +/- hotkeys for adjusting frameskipping rate
- -- Added adjustable speed regulation. There are five modes, all can be adjusted inside the configuration file. CTRL+[+/-] will adjust the speed mode.
- -- Added PPU options to toggle any BG / OAM layers with any priority, HDMA effects, and offset per tile effects
- -- Added option to accept invalid button combinations (up+down, left+right) to joypad config menu
- -- bsnes now properly clears the main window when unloading games
- [code] Made destructors for base classes virtual, so the correct destructors will be called now
This version adds speed regulation, greatly improves PPU rendering, and increases speed by ~30% over the previous version.
Changelog:
- Rewrote offset-per-tile mode emulation, should be correct now. Fixes Chrono Trigger, Contra III, Tetris Attack, etc.
- Fixed a bug with HDMA occuring during interrupts. Fixes Tales of Phantasia souond test screen
- Updated compiler to Visual Studio 2005, and enabled profile guided optimizations
- Added conditional compilation of debugging functions (faster without them)
- Added conditional compilation of core classes as pointers (allowing polymorphism) or objects (allowing inlining). The latter results in a speed increase
- Small fixes to BG and OAM rendering routines
- Corrected sprite tile bounds wrapping
- Corrected sprite rendering in hires video modes
- Rewrote color add/sub routines, should be correct now. Fixes Illusion of Gaia menu, etc.
- Optimized video blitting routines, will temporarilly break mixed video mode screenshots
- Prevented selecting menu options via return key from being recognized as keypresses by the emulator
- Added system speed regulation (60hz/NTSC or 50hz/PAL)! Many thanks to kode54, GIGO, and Richard Bannister for their assistance
I disabled the debugger and polymorphism, and enabled profile guided optimizations for this build, to maximize speed. The debugger and polymorphism can be re-enabled via uncommenting the respective #defines in src/base.h and recompiling, or bsnes v0.013 can be used. I may start releasing two separate builds in the future... not sure yet.
- Greatly improved HDMA timing and accuracy with help from anomie and DMV27 -- fixes bugs in Energy Breaker and Street Fighter Alpha 2
- Fixed a problem with color add/sub code -- fixes opening battle in Tales of Phantasia and clouds in Energy Breaker
- Temporarily added DMV27's bugfix for the DSP KON register -- fixes sound in Der Langrisser, but this is not a hardware-accurate fix
- Disabled VRAM writes outside of vblank -- fixes Hook, but breaks many PD ROMs and fan translations (Roto's BS Zelda hack, Gideon Zhi's Ys 4 translation, etc). I might add an option in the future to toggle this behavior, but for now these games will no longer work. Please keep in mind these games will not run properly on real SNES hardware, either.
- Improved frameskipping code thanks to a suggestion from Richard Bannister
- Misc. other code cleanups and improvements (notably in the color table generation code)
- bsnes is now endian-safe and runs on Mac OS X
- Added caching support for window clipping tables resulting in a slight speedup. Please let me know if you spot any errors as a result of this change.
Changelog:
- Added S-DSP emulation
- Added sound output support via DirectSound -- no sound buffering though, so sound is muted by default
- Added option to record raw sound output to WAV files
- Added multiple color adjustment filters to the video output
- Added mode3/4 direct color support
- Added mode7 direct color and mosaic support
- Greatly improved mode7 rendering algorithm thanks to anomie
- Fixed mode7 screen repitition and EXTBG effects
- Greatly increased accuracy of NMI and IRQ timing, and emulated many newly discovered hardware quirks involving the two
- A few speed improvements courtesy of Nach for profiling the code for me
I'm now looking for assistance with sound buffering. Specifically, I need help modifying the DirectSound code to allow the emulator to be ran between 50%-400% normal speed, while keeping the sound output relatively good. If you have experience with this and can help, please get in touch with me (setsunakun0 at hotmail dot com).
bsnes now supports SPC700 emulation (no DSP or sound support, however), and has greatly improved compatibility. It also now contains a keyboard-only joypad configuration tool.
- Fixed non-interlaced display modes from not drawing every other frame
- Changed OAM halve to skip every other scanline in 224-height modes
- Updated renderer to properly support games that switch resolutions mid-frame
- Fixed VRAM address remapping modes, fixes DQ3R, FF: MQ
- Fixed a bug in main color window clipping affecting BGs
- Added video color curve option, thanks to Overload for the idea + color table
- Added vblank, FPS counter, and DDraw surface memory options to settings menu
- Added fullscreen modes 640x480 and 1024x768 to video modes
- Added option to toggle the menubar on and off by pressing the escape key
- Mode3 was not rendering sprites
- Priorities were wrong for modes 2-4, thanks to anomie for info
- Fixed a serious bug in IRQ interrupts. May not be perfect, but helps many games
moving the window + main color window clipping into the bg/oam/mode7 rendering routines themselves, I was able to greatly simplify the most complicated part of rendering: the final pass where color add/sub effects are applied. As a result, the new PPU core is not only ~35% faster (on graphics intensive screens, even faster on simpler screens), but more accurate as well. Awesome.
In celebration, I´m releasing bsnes v0.008. I can actually run all games I have at >60fps on my Athlon 1.67ghz PC. Probably not something to brag about, though ...
Oh, and I also updated the keyboard polling code to only capture keypresses if the main window has focus. I´ve been meaning to do this for the better part of a year now, but never got around to it.
If, for some reason, you still want to use the old renderer, you can uncomment the first line in src/ppu/bppu/bppu.h and recompile the emulator yourself. Or you can use v0.007a, I´ll leave it up for a bit.
I have done quite a bit, so I´ll try my best to recap most of the fixes since the last release...
- HDMA was not running during DMA transfers
- Emulator did not recognize any filetype other than .smc
- Added configuration file support and imported my vector/string/config libraries into bsnes
- Added option to use system RAM instead of video RAM for display, this can greatly increase speed on certain video cards
- Increased speed by ~15% by adding 256x224 renderer (still very buggy when the SNES mixes video modes mid-frame)
- mvn/mvp opcodes were not setting the DB register
- Fixed joypad input in many games (Super Mario: All Stars, Dragon Quest III, etc.)
- Major speedup with frakeskip option
- Fixed default aspect ratio when emulator is first started
There´s probably a lot more, but that´s all I remember offhand... this release should be a lot closer to the quality of v0.005a, but still needs a bit more polishing.
