--- /dev/null
+1.91 (2013-10-)
+ + Added OpenDingux support (Paul Cercueil).
+ + Revived GP2X/Caanoo/Wiz support.
+ + Switched to cleaner CD controller code from Eke-Eke's Genesis Plus GX.
+ * Fixed overflow issue where cd emulation would break after
+ ~10 minutes of gameplay.
+ * Fixed synchronization issue where model1 CD BIOS would randomly hang.
+
+1.90 (2013-09-24)
+ + 32X+CD emulation has been implemented.
+ + CD graphics processor code has been replaced with much cleaner Eke-Eke's
+ implementation from Genesis Plus GX.
+ + CD PCM code has been completely rewritten.
+ * Various CD compatibility issues have been solved. Hopefully no more
+ regressions this time.
+ * pandora: fixed tv-out (again), added automatic layer switching
+ * libretro: fixed crackling sound for some games, added some core options
+ * sdl: multiple joystick support has been fixed (Victor Luchits)
+
+1.85 (2013-08-31)
+ * Lots of 32X compatibility and accuracy improvements. All commercial games
+ are booting now, but some still have issues.
+ * Fixed some regressions in MegaCD code, like hang in jap BIOS.
+ * Implemented pause for SMS.
+ * Updated UI with improvements from PCSX ReARMed.
+ * Frontend timing has been rewritten, should no longer slowly desync from
+ LCD on pandora.
+ * Added libretro and SDL 32/64bit ports, fixed compatibility issues with
+ Android, iOS.
+ * Various other things I forgot (it has been a while since last release..)
+
+1.80 (2010-09-19)
+ + Added Caanoo support. Now the GP2X binary supports GP2X F100/F200, Wiz
+ and Caanoo. Lots of internal refactoring to support this.
+ + Enabled 32X and SMS code. It's still unfinished but better release something
+ now than wait even more (it has been in development for more then a year now
+ due to various other projects or simply lack of time).
+ + Pandora: added hardware scaler support, including ability to resize the
+ layer and control filtering.
+ + GP2X: Added basic line-doubling vertical scaling option.
+ * Changed the way keys are bound, no need to unbind old one any more.
+ * Handle MP3s with ID3 tags better (some MP3s with ID3 did not play).
+ * Improved shadow/hilight color levels.
+ * Fixed broken cheat support.
+
+1.80beta2
+ * Pandora: updated documentation.
+
+1.80beta1 (2010-06-02)
+ + Added pandora port.
+ * Internal refactoring for 32x/SMS support.
+ * Move mapper database to external file.
+ + Added preliminary SMS emulation.
+ + Added emulation of 32x peripherals including VDP. More work is needed here.
+ + ARM: Added new SH2 recompiler for 32x. Some unification with SVP one.
+ - Disabled most of the above bacause I'm not yet happy with the results.
+
+1.56 (2009-09-19)
+ * Changed sync in Sega CD emulation again. Should fix games that
+ broke after changes in 1.51a.
+ * Fixed default keys rebinding when they shouldn't.
+ * Fixed sram being loaded from wrong game.
+ * Emu should no longer hang shortly after using fast-forward.
+ * Fixed save states sometimes no longer showing up in save state menu.
+ * ARM: some asm code refactoring for slight speed improvement.
+
+1.55
+ + Added Wiz support. Now the same GP2X binary supports F100/F200 and Wiz.
+ * Changed shadow/hilight handling a bit, fixes some effects in Pirates! Gold.
+ * Complete input code rewrite. This fixes some limitations like not allowing
+ to control both players using single input device. It also allows to use
+ more devices (like keyboards) on Linux based devices.
+ * Options menu has been reordered, "restore defaults" option added.
+
+1.51b
+ * Fixed a crash when uncompressed savestate is loaded.
+ * Fixed an idle loop detection related hanging problem.
+ * PSP: fixed another palette related regression.
+ * UIQ3: updated frontend for the latest emu core.
+
+1.51a
+ * Fixed a sync problem between main and sub 68k. Should fix the hanging
+ problem for some games.
+ * ARM: fixed a crash when CD savestate is loaded just after loading ROM.
+
+1.51
+ * Improved bin_to_cso_mp3 tool, it should no longer complain about
+ missing lame.exe even if it's in working dir.
+ * Fixed a regression from 1.50, which caused slowdowns in Final Fight.
+ * Fixed some regressions from 1.50 related to sprite limit and palette
+ handling (caused graphical glitches in some games).
+ + Added ABC turbo actions to key config.
+ * Some other minor adjustments.
+
+1.50
+ + Added some basic support for Sega Pico, a MegaDrive-based toy.
+ + Added proper support for cue/bin images, including cdda playback.
+ .cue sheets with iso/cso/mp3/wav files listed in them are now
+ supported too (but 44kHz restriction still applies).
+ + Added bin_to_cso_mp3 tool, based on Exophase's bin_to_iso_ogg.
+ The tool can convert .cue/.bin Sega CD images to .cso/.mp3.
+ * Greatly improved Sega CD load times.
+ * Changed how scheduling between 68k and z80 is handled. Improves
+ performance for some games. Credits to Lordus for the idea.
+ * YM2612 state was not 100% saved, this should be better now.
+ * Improved renderer performance for shadow/hilight mode.
+ * Added a hack for YM2612 frequency overflow issue (bleep noises
+ in Shaq Fu, Spider-Man - The Animated Series (intro music), etc.)
+ Credits to Nemesis @ spritesmind forum. Works only if sound rate
+ is set to 44kHz.
+ + Implemented some sprite rendering improvements, as suggested by
+ Exophase. Games with lots of sprites now perform better.
+ + Added better idle loop detection, based on Lordus' idea again.
+ - "accurate timing" option removed, as disabling it no longer
+ improves performance.
+ - "accurate sprites" was removed too, the new sprite code can
+ properly handle sprite priorities in all cases.
+ * Timers adjusted again.
+ * Improved .smd detection code.
+ * ARM: fixed a bug in DrZ80 core, which could cause problems in
+ some rare cases.
+ * ARM: fixed a problem of occasional clicks on MP3 music start.
+ * Minor general optimizations and menu improvements.
+ * Fixed a bug in Sega CD savestate loader, where the game would
+ sometimes crash after load.
+ * Fixed a crash of games using eeprom (introduced in 1.40b).
+ * PSP: fixed suspend/resume (hopefully for real).
+
+1.40c
+ * Fixed a problem with sound in Marble Madness.
+ * GP2X: Fixed minor problem with key config.
+
+1.40b
+ * Fixed sprite masking code. Thanks to Lordus for explaining how it works.
+ + Added "disable sprite limit" option.
+ + PSP: added black level adjustment to display options.
+ * Changed reset to act as 'soft' reset.
+ + Added detection for Puggsy (it doesn't really have sram).
+ * Some small timing adjustments.
+
+1.40a
+ * GP2X: Fixed a binding problem with up and down keys.
+ * Default game config no longer overrides global user config.
+
+1.40
+ + Added support for SVP (Sega Virtua Processor) to emulate Virtua Racing,
+ wrote ARM recompiler and some HLE code for VR. Credits to Exophase and
+ Rokas for various ideas.
+ * Changed config file format, files are now human-readable. Game specific
+ configs are now held in single file (but old game config files are still
+ read when new one is missing).
+ * Fixed a bug where some key combos didn't work as expected.
+ * Fixed a regression in renderer (ARM ports only, some graphic glitches in
+ rare cases).
+ * Adjusted fast renderer to work with more games, including VR.
+ * Fixed a problem where SegaCD RAM cart data was getting lost on reset.
+ * GP2X: Greatly reduced SegaCD FMV game slowdowns by disabling read-ahead
+ in the Linux kernel and C library (thanks to Rokas and Exophase for ideas
+ again). Be sure to keep "ReadAhead buffer" OFF to avoid slowdowns.
+ + PicoDrive now comes with a game config file for some games which need
+ special settings, so they should now work out-of-the-box. More games will
+ be added with later updates.
+ + GP2X: Files now can be deleted by pressing A+SELECT in the file browser.
+
+1.35b
+ * PSP: mp3 code should no longer fail on 1.5 firmware.
+ + PSP: added gamma adjustment option.
+ + Added .cso ISO format support. Useful for non-FMV games.
+ * It is now possile to force a region after the ROM is loaded.
+ * Fixed a sram bug in memhandlers (fixes Shining in the Darkness saves).
+ * PSP: fixed another bug in memhanlers, which crashed the emu for some games
+ (like NBA Jam and NHL 9x).
+ + PSP: added suspend/resume handling for Sega CD games.
+ + GP2X: added additional low volume levels for my late-night gaming sessions
+ (in stereo mode only).
+ + GP2X: added "fast forward" action in key config. Not recommended to use for
+ Sega CD, may case problems there.
+ * Some other small tweaks I forgot about.
+
+1.35a
+ * PSP: fixed a bug which prevented to load any ROMs after testing the BIOS.
+ * PSP: fixed incorrect CZ80 memory map setup, which caused Z80 crashes and
+ graphics corruption in EU Mega CD model1 BIOS menus.
+ + PSP: added additional "set to 4:3 scaled" display option for convenience.
+ + PSP: Added an option to disable frame limitter (works only with non-auto frameskip).
+
+1.35
+ + PSP port added. Lots of new code for it. Integrated modified FAME/C, CZ80 cores.
+ + Some minor generic optimizations.
+ * Patched some code which was crashing under PSP, but was working in GP2X/Giz
+ (although it should have crashed there too).
+ * Readme updated.
+
+1.34
+ + Gizmondo port added.
+ + Some new optimizations in memory handlers, and for shadow/hilight mode.
+ + Added some hacks to make more games work without enabling "accurate timing".
+ * Adjusted timing for "accurate timing" mode and added preliminary VDP FIFO
+ emulation. Fixes Double Dragon 2, tearing in Chaos Engine and some other games.
+ * Fixed a few games not having sound at startup.
+ * Updated serial EEPROM code to support more games. Thanks to EkeEke for
+ providing info about additional EEPROM types and game mappers.
+ * The above change fixed hang of NBA Jam.
+ * Minor adjustments to control configurator.
+
+1.33
+ * Updated Cyclone core to 0.0088.
+ + Added A r k's usbjoy fix.
+ + Added "perfect vsync" option, which adjusts GP2X LCD refresh rate and syncs
+ emulation to it to eliminate tearing and ensure smoothest scrolling possible.
+ + Added an option to use A_SN's gamma curve for gamma correction (improves dark
+ and bright color display for mk2s).
+ * Sometimes stray sounds were played after loading a savestate. Fixed.
+ * Fixed a problem where >6MB mp3s were corrupted in memory (sound glitches in
+ Snatcher).
+ * PD no longer overwrites video player code in memory, video player now can be
+ used after exiting PicoDrive.
+ * Fixed a bug which was causing Sonic 3 code to deadlock in some rare conditions
+ if "accurate timing" was not enabled.
+ * Fixed support for large hacked ROMs like "Ultimate Mortal Kombat Trilogy".
+ Upto 10MB hacked ROMs are supported now.
+ + Config profiles added (press left/right when saving config).
+ * Changed key configuration behavior to the one from gpfce (should be more
+ intuitive).
+ + Added some skinning capabilities to the menu system with default skin by
+ ketchupgun. Delete skin directory if you want old behaviour.
+ * Some other little tweaks I forgot about.
+
+1.32
+ + Added some new scaling options.
+ + Added ability to reload CD images while game is running (needed for games
+ with multiple CDs, like Night Trap).
+ + Added RAM cart emulation.
+ * Fixed DMA timing emulation (caused lock-ups for some genesis games).
+ * Idle loop detection was picking up wrong code and causing glitches, fixed.
+ * The ym2612 code on 940 now can handle multiple updates per frame
+ (fixes Thunger Force III "seiren" level drums for example).
+ * Memory handlers were ignoring some writes to PSG chip, fixed (missing sounds in
+ Popful Mail, Silpheed).
+ * Improved z80 timing, should fix some sound problems.
+ * Fixed a bug with sram register (fixes Phantasy Star 4).
+ * ROM loader was incorrectly identifying some ROMs as invalid. Fixed.
+ * Added code for PRG ram write protection register (Dungeon Explorer).
+ * The memory mode register change in 1.31 was unsafe and caused some glitches in
+ AH-3 Thunderstrike. Fixed.
+ * Fixed a file descriptor leak.
+ * Updated documentation, added Gmenu2x manual.
+
+1.31
+ * Changed the way memory mode register is read (fixes Lunar 2, broken in 1.30).
+ * Fixed TAS opcode on sub-68k side (fixes Batman games).
+ * File browser now filters out mp3s, saves and some other files, which are not ROMS.
+
+1.30
+ + ISO files now can be zipped. Note that this causes VERY long loading times.
+ + Added data pre-buffering support, this allows to reduce frequency of short pauses
+ in FMV games (caused by SD access), but makes those pauses longer.
+ * Fixed PCM DMA transfers (intro FMV in Popful Mail).
+ + Properly implemented "decode" data transformation (Jaguar XJ220).
+ * Integrated "better sync" code into cyclone code, what made this mode much faster.
+ * Fixed a bug related to game specific config saving.
+ * Frameskipper was skipping sound processing, what caused some audio desyncs. Fixed.
+ * Fixed reset not working for some games.
+ + New assembly optimized memory handlers for CD (gives at least a few fps).
+ Also re-enabled all optimizations from 0.964 release.
+ + New idle-loop detection code for sub-68k. Speeds up at least a few games.
+
+1.201
+ + Added basic cheat support (GameGenie and Genecyst patches).
+
+1.20
+ * Fixed a long-standing problem in audio mixing code which caused slight distortions
+ at lower sample rates.
+ * Changed the way 920 and 940 communicates (again), should be more reliable and give
+ slight performance increase.
+ * Some optimizations in audio mixing code.
+ * Some menu changes (background added, smaller font in ROM browser, savestate loader
+ now can select slots).
+ + 1M mode DMA transfers implemented (used by FMV games like Night Trap and Sewer Shark).
+ + Games now can run code from WORD RAM in 1M mode (fixes Adventures of Willy Beamish).
+ + "Cell arrange" address mapping is now emulated (Heart of the alien).
+ + "Color numeric operation" is now emulated (text in Lunar 2, Silpheed intro graphics).
+ + "Better sync" option added (prevents some games from hanging).
+
+1.14
+ + Region autodetection now can be customized.
+ * When CDDA music tracks changed, old buffer contents were incorrectly played. Fixed.
+ * BRAM is now automatically formatted (no need to enter BIOS menu and format any more).
+ * Games now can be reset, CDDA music no longer breaks after loading another ISO.
+ * Fixed a race condition between 920 and 940 which sometimes caused CDDA music not to play.
+ + Savestates implemented for Sega/Mega CD.
+ + PCM sound added.
+ * Some mixer code rewritten in asm. 22kHz and 11kHz sound rates are now supported in
+ Mega CD mode (but mp3s must still be 44kHz stereo).
+ + Timer emulation added.
+ * CDC DMA tansfers fixed. Snatcher and probably some more games now boot.
+ * 2M word RAM -> VDP transfers fixed, no more corruption in Ecco and some other games.
+
+1.10
+ + GP2X: Added experimental Sega CD support.
+ + GP2X: Added partial gmv movie playback support.
+
+0.964 (2006-12-03)
+ * GP2X: Fixed a sound buffer underflow issue on lower sample rate modes, which was
+ happening for NTSC games and causing sound clicks.
+ * GP2X: Redone key config to better support USB joysticks (now multiple joysticks
+ should be useable and configurable).
+ + GP2X: Added save confirmation option.
+ + GP2X: Added 940 CPU crash detection.
+ + ALL: UIQ3 port added.
+
+0.963
+ * GP2X: Gamma-reset-on-entering-menu bug fixed.
+ * GP2X: Recompiled PicoDrive with gcc profiling option set as described here:
+ http://www.gp32x.com/board/index.php?showtopic=28490
+
+0.962
+ * GP2X: Fixed an issue with incorrect sounds in some games when dualcore operation
+ was enabled (for example punch sound in SOR).
+ * GP2X: Limited max volume to 90, because higher values often cause distortions.
+ * GP2X: Fixed a bug with lower res scaling.
+ * GP2X: Gamma is now reset on exit.
+
+0.96
+ * ALL: Severely optimized MAME's YM2612 core, part of it is now rewritten in asm.
+ + GP2X: The YM2612's code now can be run in GP2X's ARM940T CPU, what causes large
+ performance increase.
+ * ALL: Accurate renderers are slightly faster now.
+ + GP2X: Using quadruple buffering instead of doublebuffer now, also updated
+ framelimitter, this should eliminate some scrolling and tearing problems.
+ * GP2X: Fixed some flickering issues of 8bit accurate renderer.
+ + GP2X: craigix's RAM timings now can be enabled in the menu (see advanced options).
+ + GP2X: Added ability to save config for specific games only.
+ + GP2X: Gamma control added (using GP2X's hardware capabilities for this).
+ * GP2X: Volume keys are now configurable.
+ + GP2X: GnoStiC added USB joystick support, I made it possible to use it for
+ player 2 control (currently untested).
+ * GP2X: squidgehack is now applied through kernel module (cleaner way).
+
+0.95
+ * ALL: Fixed a bug in sprite renderer which was causing slowdowns for some games.
+ + GP2X: Added command line support
+ + GP2X: Added optional hardware scaling for lower-res games like Shining Force.
+ * ALL: Sound chips are now sampled 2 times per frame. This fixed some games which
+ had missing sounds (Vectorman 2 1st level, Thunder Force 3 water level,
+ etc.).
+ + ALL: Added another accurate 8-bit renderer which is slightly faster and made it
+ default.
+
+0.945
+ + GP2X: Added frame limiter for frameskipped modes.
+ * GP2X: Increased brightness a bit (unused pixel bits now also contain data).
+ * GP2X: Suidgehack was not applied correctly (was applied before allocating some
+ high memory and had no effect).
+
+0.94
+ + Added GP2X port.
+ * Improved interrupt timing, Mazin Saga and Burning Force now works.
+ * Rewritten renderer code to better suit GP2X, should be faster on other
+ ports too.
+ + Added support for banking used by 12-in-1 and 4-in-1 ROMs (thanks Haze).
+ + Added some protection device faking, used by some unlicensed games like
+ Super Bubble Bobble, King of Fighters, Elf Wor, ... (thanks to Haze again)
+ + Added primitive Virtua Racing SVP faking, so menus can be seen now.
+
+0.93
+ * Fixed a problem with P900/P910 key configuration in FC mode.
+ * Improved shadow/hilight mode emulation. Still not perfect, but should be
+ enough for most games.
+ + Save state slots added.
+ + Region selector added.
+
+0.92
+ VDP changes:
+ * VDP emulation is now more accurate (fixes flickering in Chase HQ II,
+ Super Hang-On and some other problems in other games).
+ * HV counter emulation is now much more accurate. Fixes the Asterix games,
+ line in Road Rash 3, etc.
+ * Minor sprite and layer scroll masking bugs fixed.
+ + Added partial interlace mode renderer (Sonic 2 vs mode)
+ * Fixed a crash in both renderers when certain size window layers were used.
+ + Added emulation of shadow/hilight operator sprites. Other shadow/hilight
+ effects are still unemulated.
+ + Sprite emulation is more accurate, sprite limit is emulated.
+ + Added "accurate sprites" option, which always draws sprites in correct
+ order and emulates sprite collision bit, but is significantly slower.
+
+ Emulation changes:
+ * Improved interrupt handling, added deferred interrupt emulation
+ (Lemmings, etc).
+ + Added serial EEPROM SRAM support (Wonder Boy in Monster World,
+ Megaman - The Wily Wars and many EA sports games like NBA Jam).
+ + Implemented ROM banking for Super Street Fighter II - The New Challengers
+ * Updated to the latest version of DrZ80 core, integrated memory handlers
+ in it for better performance. A noticeable performance increase, but save
+ states may not work from the previous version (you can only use them with
+ sound disabled in that case).
+ + SRAM word read handler was using incorrect byte order, fixed.
+
+ Changes in Cyclone 0.0086:
+ + Added missing CHK opcode handler (used by SeaQuest DSV).
+ + Added missing TAS opcode handler (Gargoyles,Bubba N Stix,...). As in real genesis,
+ memory write-back phase is ignored (but can be enabled in config.h if needed).
+ + Added missing NBCD and TRAPV opcode handlers.
+ + Added missing addressing mode for CMP/EOR.
+ + Added some minor optimizations.
+ - Removed 216 handlers for 2927 opcodes which were generated for invalid addressing modes.
+ + Fixed flags for ASL, NEG, NEGX, DIVU, ADDX, SUBX, ROXR.
+ + Bugs fixed in MOVEP, LINK, ADDQ, DIVS handlers.
+ * Undocumented flags for CHK, ABCD, SBCD and NBCD are now emulated the same way as in Musashi.
+ + Added Uninitialized Interrupt emulation.
+ + Altered timing for about half of opcodes to match Musashi's.
+
+0.80
+ * Nearly all VDP code was rewritten in ARM asm. Gives ~10-25% performance
+ increase (depends on game).
+ * Optimized 32-column renderer not to render tiles offscreen, games which
+ use 32-column display (like Shining Force) run ~50% faster.
+ + Added new "Alternative renderer", which gives another ~30-45% performance
+ increase (in addition to mentioned above), but works only with some games,
+ because it is missing some features (it uses tile-based rendering
+ instead of default line-based and disables H-ints).
+ + Added "fit2" display mode for all FC gamers. It always uses 208x146 for
+ P800 and 208x208 for all other phones.
+ + Added volume control for Motorolas (experimental).
+
+ VDP changes:
+ + Added support for vertical window (used by Vapor Trail, Mercs, GRIND
+ Stormer and others).
+ + Added sprite masking (hiding), adds some speed.
+ + Added preliminary H counter emulation. Comix Zone and Sonic 3D Blast
+ special stage are now playable.
+ + Added column based vertical scrolling (Gunstar Heroes battleship level,
+ Sonic and Knuckles lava boss, etc).
+
+ Emulation changes:
+ + Re-added and improved Z80 faking when Z80 is disabled. Many games now can
+ be played without enabling Z80 (Lost Vikings, Syndicate, etc), but some
+ still need it (International Superstar Soccer Deluxe).
+ * Improved ym2612 timers, Outrun music plays at correct speed, voices in
+ Earthworm Jim play better, more games play sound.
+ * I/O registers now remember their values (needed for Pirates! Gold)
+ + Added support for 6 button pad.
+
+ Changes in Cyclone 0.0083wip:
+ + Added missing CHK opcode (used by SeaQuest DSV).
+ + Added missing TAS opcode (Gargoyles). As in real genesis, write-back phase
+ is ignored (but is enabled for other systems).
+
+ Backported stuff from Snes9x:
+ * Fixed Pxxx jog up/down which were not working in game.
+ + Added an option to gzip save states to save space.
+ + The emulator now pauses whenever it is loosing focus, so it will now pause
+ when alarm/ponecall/battery low/... windows come up.
+ - Removed 'pause on phonecall' feature, as it is no longer needed.
+ + Video fix for asian A1000s.
+
+0.70
+ * Started using tools from "Symbian GCC Improvement Project", which give
+ considerable speed increase (~4fps in "center 90" mode).
+ * Rewrote some drawing routines in ARM assembly (gives ~6 more fps in
+ "center 90" mode).
+ * Minor improvement to 0 and 180 "fit" modes. Now they look slightly better
+ and are faster.
+ * Minor stability improvements (emulator is less likely to crash).
+ + Added some background for OSD text for better readability.
+ + Added Pal/NTSC detection. This is needed for proper sound speed.
+ + Implemented Reesy's DrZ80 Z80 emu. Made some changes to it with hope to make
+ it faster.
+ + Implemented ym2612 emu from the MAME project. Runs well but sometimes sounds
+ a bit weird. Could be a little faster, so made some changes too.
+ + Implemented SN76489 emu from the MAME project.
+ + Added two separate sound output methods (mediaserver and cmaudiofb) with
+ autodetection (needs testing).
+ * Fixed VDP DMA fill emulation (as described in Charles MacDonald's docs),
+ fixes Contra and some other games.
+
+0.301
+ Launcher:
+ * Launcher now starts emulation process from current directory,
+ not from hardcoded paths.
+ * Improved 'pause on call' feature, should hopefully work with Motorola phones.
+
+0.30 (2006-01-07)
+ Initial release based on fDave's code.
notaz.gp2x.de / picodrive.git / blobdiff