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https://github.com/ekeeke/Genesis-Plus-GX.git
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369 lines
22 KiB
Plaintext
369 lines
22 KiB
Plaintext
Genesis Plus for Gamecube
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------------------------------
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CURRENT:
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---------
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[Genesis]
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- YM2612(MAME): improved Enveloppe Generator accuracy, fix tracks #3 and #9 in Mega Turrican
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- YM2612(MAME): fixed a bug in SSG-EG emulation code, fix Level 1 music in Alisia Dragoon
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- YM2612(MAME): improved Detune overflow accuracy, fix high-frequency sound effects & musics in many games
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- YM2612(MAME): fixed registers 0x20-0x26 Reset state, fix intro music in B.O.B
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- adjusted HCounter values, fix Sonic 3D bonus stage
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[NGC/Wii]
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- improved menu scrolling using Wiimote D-PAD
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- fixed config file incompatibility between GC and Wii versions
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26/08/2008:
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-----------
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[Genesis]
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- YM2612(MAME): fixed LFO phase update for CH3 special mode: fix sound effects in Warlock & Aladdin (thanks to AamirM)
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- YM2612(MAME): fixed EG attenuation level on "KEY ON": fix Ecco 2's splash sound
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- YM2612(MAME): fixed SSG-EG emulation: fix Bubba'n Stix (Track 5) and many others
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- YM2612(MAME): replaced sample interpolation with libsamplerate support, High Quality mode is now more accurate
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- implemented cycle-accurate HINT timings: every timing sensitive games/demos are now *finally* working fine
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- fixed a bug affecting CRAM/VSRAM DMA timings
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- fixed Sprite Attribute Table address mask for VRAM writes
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- improved accuracy of 68k access to Z80: fix music in Pacman 2 when entering PAUSE menu
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- disabled "Address Error" emulation when UMK3 hack is loaded: fix game crashing after a round ends up
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- added support for some more unlicensed games: Pocket Monster, King of Fighter 98, Soul Blade (credits to Haze)
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- improved Menacer emulation: fix lightgun support in Body Count & T2: The Arcade Game
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- added Konami Justifier emulation: fix lightgun support in Lethal Enforcers 1 & 2
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- added Sega Mouse emulation (Populous 2, Body Count, Shangai 2, Fun'n Games, ...)
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[NGC/Wii]
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- added Wiimote support for Menacer/Justifier/Mouse
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- added DVD support in Wii mode (no modchip required)
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- added "Gun cursor" option to enable/disable gun position display
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- added "Invert Mouse" option to invert Sega Mouse vertical axe (required by some games)
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- improved Controller options: Wiimote/Nunchuk and Classical Controllers can now be affected separately to ANY player
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16/07/2008:
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-----------
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[Genesis]
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- adjusted (again) HINT timings: fix Double Dragon 2 (game freezed), hopefully does not break anything else
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- fixed broken EEPROM support for Codemaster games
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- modified input update timings: fix Dungeons & Dragons - Warriors of the Eternal Sun (thanks to Notaz)
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- added support for "Ultimate Mortal Kombat Trilogy" hack (max. size supported is 10MBytes)
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- added (VERY) preliminar support for PICO roms (credits to Notaz for his documentation)
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- improved YM2612 emulation (credits to Nemesis for his tests on real hardware):
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.implemented phase overflow emulation: improved fix for special music instrument used in Comix Zone, Flashback, Ariel, Shaq Fu...
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.improved SSG-EG emulation in MAME core (also based on additional code from Alone Coder)
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.improved Timers emulation accuracy
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.improved Enveloppe Generator accuracy
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.fixed Channel 3 CSM mode emulation
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.implemented sample interpolation in MAME core to emulate the chip at original frequency (HQ YM2612 mode, from gens)
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[NGC/Wii]
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- added automatic alphabetical filesorting (Marty Disibio)
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- added ROM History for faster ROM access (Marty Disibio)
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- fixed a silly input bug in "ROM Infos" & "Game Genie" menus
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- modified "Hard Reset" option
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- improved display sharpness in original rendering mode (H40 cell mode only), filtering is now completely disabled
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- enabled overscan emulation in "STRETCH" aspect mode also
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- added support for horizontal wiimote handling in Menu (automatically used when the wiimote is not pointed towards the screen)
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- improved Controller options
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.prevented keys reconfiguration if device is not detected
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.added support for up to 8 players (ISS Pro Deluxe, ...)
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.each player can be affected to a custom device (GAMECUBE Pad, WIIMOTE/NUNCHUK or CLASSIC)
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.added the ability to use classic controller & wiimote pad from the same port separately
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.modified "soft-reset" key on the Wiimote to avoid "accidental" resets (now press Buttons + & - simultaneously)
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.added MODE button mapping: use "START+Z" on gamepad or "Button Minus" on wiimote/classic (not reconfigurable)
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.added automatic configuration save for controller options
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01/06/2008:
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-----------
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[Genesis]
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- improved HCounter accuracy: fix graphic glitches in "Striker (Europe)"
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- improved HINT timing accuracy: fix flickering in "Zero The Kamikaze Squirrel (USA)"
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- improved rendering accuracy when backdrop color is modified during HBLANK (Road Rash I/II/III)
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- fixed broken Game Genie support
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[NGC/Wii]
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- added full horizontal scaling (up to 720 pixels) when using "stretch" aspect mode (use Xscale to increase width)
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- added progressive mode support (480p) in menu also
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- added automatic SRAM/FreezeState support (OFF by default, check "system options")
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- added automatic configuration file support
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- /genplus/saves is now automatically created if it does not exist
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- use libfat automatic SDCARD detection: default slot is now always used when accessing SDCARD
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- assigned Reset Button to Genesis Soft-Reset
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[Wii only]
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- added automatic TV mode detection (from SYSCONF), no more PAL60 version needed
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- added option to return to Wii System Menu
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- fixed "TP reload" option: now compatible with HB channel
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- removed SD-Gekko support (Wii slot becomes default slot)
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- added Wii SD slot support for SRAM & FreezeState files
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- added Wiimote, Nunchuk & Classic controllers support through libwiiuse (see User Manual for default keys)
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- added customizable key mapping (for each configurations: wiimote only, wiimote+nunchuk or classic)
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19/04/2008:
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[Genesis]
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- modified VINT timings a little bit: fix lockup during Desert Strike's intro
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- corrected 68k interrupts handling: fix graphic glitches in Darius II/Sagaia
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[NGC/Wii]
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- fixed 60Hz "Bilinear" rendering mode (was broken in last release)
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- fixed issue with the 1st file when browsing SDCARD through SD-Gekko
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- fixed GX initialization: fix "freeze" issue that occured sometime when starting a game
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- added "Wii Reboot" option
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- added PAL 50hz support in menu (black borders)
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- added progressive rendering mode support (480p) in Wii mode (not supported by the PAL60 version, use the other one !)
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- compiled with a modified libogc: should definitely fix the PAL "red screen" issue for RGB-cable users (still use the PAL60 version !)
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06/04/2008:
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-----------
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[Genesis]
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- updated SVP core: fix some perspective issues in Virtua Racing (thanks to Notaz)
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- added internal SAT update during VRAM Fill: fix unmasked sprites during Battletech's intro
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- fixed m68k core issues with gcc 4.2.3: fix Xperts, Lemmings 2, M1 Abrams Battle Tank
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- forced YM2612 Enveloppe update: fix intro music in Batman&Robin (thanks to Aamir)
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[NGC/Wii]
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- removed not working DVD features (Wii mode only)
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- fixed Timers with PAL roms
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- added EURGB60 TV mode support: fix "red screen" issue with PAL Wii when using RGB cable
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- added PAL50 TV mode support (PAL and NTSC roms), see video options
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- added "TP reload" option, use "System Reboot" (Wii mode only)
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- added Front SD rom loading support with LFN & subdirectory browsing (Wii mode only)
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01/03/2008:
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-----------
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[Genesis]
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- added SVP emulation: Virtua Racing is now emulated (big thanks to Notaz and TascoDeluxe)
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- fixed VDP registers behaviour when VDP Mode 4 is enabled: fix Bass Masters Classic Pro, Captain Planet & The Planeeters
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- corrected a bug in DMA Fill operation: fix James Pond 3, Rockman World/Megaman Willy Wars (corrupted VRAM)
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- corrected typo errors in CPU cycle counters update: fix optiom screen music in "College Slam" and probably others games.
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- added preliminary support of undocumented YM2612 bug: fixes soundtracks of Shaq Fu, Spiderman, Comix Zone, Ariel and some others
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- added support for mappers & copy protection devices used in many unlicensed/pirate cartridges (see cart_hw.c for details)
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- rewrote memory handlers for better modularity and some (little) speedup
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- reduced Savestate size
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[NGC]
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- compiled with last LibOGC (20080228): fix issues when unplugging controller, support for Wii mode (see release.txt)
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- added "hard-coded" IPL font (no more direct access to BOOTROM): fix font problem for Qoob users
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- added SDCARD Slot B support for loading Roms
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- removed unused MAME PSG Core
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- added 'Force DTACK' option for prototype games usually hanging on real hardware (example: Sonic Crackers)
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- added an option to underclock SVP core (with default cycle count, Virtua Racing actually does not run fullspeed in GC mode)
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- fixed frame timing in PAL mode
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- fixed analog stick sensitivity
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07/01/2008:
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-----------
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[Genesis]
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- fixed interleaved rom detection: roms with .smd extension should now work fine
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- fixed a recently introduced bug in VDP registers writes: fixes bad colors in Toy Story (intro)
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- updated list of games using EEPROM: added Sports Talk Baseball (internal memory check fixed) and Brian Lara Cricket
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- fixed VINT flag update when VINT is disabled: fixes NCAA College Football
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- adjusted DMA timings in H32 mode: fixes flickering in Out of this World, Kawasaki Superbike Challenge & Formula One
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- adjusted line rendering and HBLANK timings: fixes flickering in Nigel Mansell's World Championship Racing, Deadly Moves/Power Athlete
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- fixed unmapped ROM reads through Z80 Bank: fixes Zombie High (Proto)
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- added support for custom ROM/RAM mapping used by Game no Kanzume Otokuyou
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[NGC]
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- fixed broken SDCARD support for SRAM and Savestate files
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30/12/2007:
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-----------
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- fixed ROM injector base address (DATA section 1)
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28/12/2007:
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[Genesis]
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- many sourcecode cleanup and optimization
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- completely rewrote EEPROM emulation: now support all known EEPROM types (24C01-24C65) and mappers (Sega, Acclaim, EA, Codemasters)
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used in a few games (now use internal game database) as external RAM. This should at least fix save support in the following games:
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. NBA Jam (alternate Acclaim mapper)
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. College Slam, Frank Thomas Big Hurt Baseball (24C65 type)
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. NHLPA Hockey 93, Rings of Power (EA mapper)
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. Micro Machines serie, Brian Lara Cricket 96/Shane Warne Cricket (Codemasters mapper)
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- external RAM is now initialized to 0xFF by default: fix Micromachines 2, Dino Dini Soccer
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- fixed SRAM 16-bits memory handlers: fix some Sega Sports and EA Sports games (NFL95, NBA Action 95, NHL97, NHL98,...)
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- modified WRITE_xxx & READ_xxx macros for better portability and faster memory access on BIG ENDIAN platform
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- completely rewrote BIG ENDIAN support in render.c and vdp.c: rendering should be a little faster
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- rewrote ROM bankswitch emulation (Super Street Fighter II): ROM access are faster, using memory pointers instead of reading ROM copy from ARAM
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- fixed leftmost Window/PlaneA column render and implemented Window bug (as described by Charles Mc Donald)
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- improved "Sprite Limit" and "Sprite Collision" detection accuracy
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- modified RGB565 Color Palette to use the full available color range (0-31;0-63)
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- implemented "cycle accurate" HV Interrupt timings: fix Sesame's Street Counting Cafe, Legend of Galahad (intro)
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- improved VDP access timings accuracy (added FIFO emulation): fix Double Clutch
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- improved DMA timings accuracy: fix Winter Olympics (E), Arch Rivals and probably more
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- fixed HCounter again: Road Rash serie (I,II,III) don't need timing hacks anymore
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- fixed VCounter in Interlaced 2 mode: fix Combat Cars "VS-Mode"
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- improved Interlaced 2 mode (double resolution) rendering: Sonic 2, Combat Cars ("VS-Modes") look far better
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- added TMSS BIOS support (optional)
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- rewrote part of the YM2162 MAME's core: fixed internal FM timers handling, removed non-YM2612 emulation code and unused multiple cpu support
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- implemented "cycle accurate" FM timers & sound samples rendering
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- improved Z80 Interrupt timing accuracy: fix Sonic 3 music slowdowns
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- updated Z80 & 68000 cores to last MAME versions
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- improved Soft Reset emulation: X-Men 2 and Eternal Champions (random character selection) now work more like on real hardware.
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- added full overscan emulation (vertical & horizontal borders) for "pixel perfect" aspect ratio (tested against a real genesis)
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[NGC]
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- fixed rom checksum calculation (only used for rom information)
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- some modifications in GX rendering code.
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- added support for original Genesis/Megadrive NTSC & PAL video modes: this makes games looking exactly as on original hardware (progressive rendering with reduced resolution)
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- added "Aspect" option to switch between ORIGINAL (aspect ratio is fixed and borders are emulated) and MANUAL SET (horizontal and vertical scaling can be manually configured, borders are not emulated)
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- added "Overscan" option to disable the original borders color and always use black borders (only used when ORIGINAL Aspect mode is enabled)
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- added support for up to 720 pixels horizontal resolution (needed for proper aspect ratio emulation)
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- added "TV Mode" option to enable automatic switching to PAL(50Hz) TV mode when the Genesis runs in PAL mode
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- added "Xshift" & "Yshift" settings to let you adjust display area position while keeping the original aspect ratio
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- added option to disable/enable SSG-EG support in FM cores: this special mode is indeed not properly emulated and some games might sound wrong when enabled
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- removed "CPU Type" option, you can also now force Region (JAP/EUR/USA) without reseting the game, choose USA or JAP for 60hz, EUR for 50hz, this can be useful to bypass game region protection at startup.
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20/07/2007:
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-----------
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[Genesis]
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- corrected TeamPlayer support: fix multiplayer in Gauntlet 4 (Sept. version), Pengo and a lot of others
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- added J-Cart support: enable multiplayer in Codemasters games (Pete Sampras, Micromachines games, Super Skidmarks)
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- added serial EEPROM autodetection: fix games with bad SRAM informations in header (NBA Jam TE)
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- added SVP faking: display 2D graphics in Virtua Racing (the game is however still unplayable)
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- added support for more internal IO registers: fixe some unlicensed games (Wisdom Tree games...)
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- added preliminary support for unmapped protection device: fix some unlicensed games with special built-in hardware (Squirell King, Lion King 2...)
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- added "Soft Reset" combo (in game, use L+Z triggers): this should be like pressing the RESET button on a real Genesis and this is required
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in some games to enable special features or even complete the game (ex: X-Men).
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[NGC]
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- added separate configuration for PortA/PortB inputs (GAMEPAD, MULTITAP or NONE, see Joypad Config): this let you setting
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PORTB as unplugged, which is needed in some games to access special modes or enable cheat codes (Alien Storm, X-Men...)
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- Freezestate & SRAM files are now compressed (using zlib)
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- FreezeState & SRAM files can now be saved/loaded to/from SDCARD: located in /genplus/saves/ from the root of your SDCARD
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- changed initial ROMS directory for SDCARD user: now looking for /genplus/roms/ from the root of your SDCARD
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- added user-transparent SRAM autoload (detection order is MCARD then SDCARD, SLOTA then SLOTB)
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- "System reboot" is now used for console reboot and SD/PSO reload (if detected)
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- added new font: now use original IPL font, extracted from Bootrom
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- modified controls when going into the rom selection menu (DVD or SDCARD):
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. use B button to go up one directory
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. use Z button to quit the file selection menu
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. use L/R triggers to go down/up one full page
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. use Left/Right buttons or Analog stick to scroll the selected entry's filename when it can't be full displayed
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- various menu rearrangment, minor bugfixes & sourcecode cleanup
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21/06/2007:
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-----------
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- added 4.7GB DVD support for WII drives (the maximal allowed size for Gamecube DVD is still 1.35GB)
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- removed MPAL video timings, always use 60Hz NTSC: fix display problems for PAL wii users (no more PAL50 version needed)
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- added Console Reboot option in main menu (IPL Reboot)
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- added Multitap support (EA 4-Way Play and Sega Teamplayer): allowed up to four players in games supporting those peripherals
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- added partial Sega Menacer lightgun support (use Analog Stick): automatically set when detecting the 6-in-1 Menacer game
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18/05/2007:
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-----------
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- you can now switch between FM cores without reseting the game. FM registers value are automatically restored when switching.
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- modified PAL framesync a little bit: the 20ms period is now applied between the start of 2 consecutive frames,
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no more between the end of the previous and the start of the next one, which seems more correct to me
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- removed the previous VINT timings modification because it brokes some games (Rocket Knight, Thunderforce III,...)
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- added automatic Timing configuration (VDP latency, VINT timing & alternate Line Timing) at game loading, based upon specific romname detection.
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This means you can still modify some of these options afterwards but they are now automatically set/unset when loading a game which need
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special timing fixes. These fixes are also automatically desactivated when the current game doesn't need them.
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For information, games that are actually detected and need special timings to run properly are:
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.Legend of Galahad & Road Rash series (single line not rendered properly)
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.Sesame Street Counting Cafe (don't boot)
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.Chaos Engine/Soldiers of Fortune (graphic glitches on scrolling)
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08/05/2007:
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-----------
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- corrected L & R buttons assignment: fixes Genesis X & Z buttons being inverted
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- VINT timings are now a little more accurate: fixes Sesame's Street Counting Cafe
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- SN76496 MAX_OUTPUT back to normal
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- modified FB_WNOISE value in SN76496 core according to John Kortink's last informations
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- added support for Maxim's PSG core, same as used in SMSPLUS (it becomes the default PSG core)
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- updated FM core to the latest MAME version
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- corrected DAC output level (fixes voices and some special FX being too low)
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- added support for Gens YM2612 (FM) core (MAME's one still remains default FM core)
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- added configurable preamplification for each sound cores (see Emulator Options)
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- added some other configurable sound options (boost overall volume, FM improvment for Gens YM2612)
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11/04/2007:
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-----------
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- corrected MAX_OUTPUT value in SN76496 core: fix PSG sound (SFX) volume
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- removed unused sound buffer allocation
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26/03/2007:
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-----------
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- added DVD automount: automatically call libogc DVD_Mount function if ISO PVD reading failed (idea taken from softdev's last neocdredux release). This may be useful for loading roms from a DVD after booting from SDLOAD or after stopping DVD motor.
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- added "DVD motor off" feature, like in others emulators
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- corrected Memory Card mounting function: EXI_ProbeReset() function was never called if the first mounting attempt failed. Should fix some of the "Unable to mount memory card" errors.
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22/03/2007:
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-----------
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- added SDCARD subdirectory browsing and LFN (255 char. max) support
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17/03/2007:
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-----------
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- remove some rendering unused code (only used by DOS version of genesis plus) for little speedup
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- added an option to enable alternate line rendering timing (fix single line error in Road Rash series and Legend of Galahad's Intro)
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- Color RAM update now always reset color 0 to border color (fix color glitches in Mortal Kombat,...) (thanks to Noop's for the idea)
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- added last Softdev's modifications (normalised memory access and ASM GU functions used intead of 'C' ones) for some speedup
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- updated gcaram.c to be compatible with last libogc version
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09/03/2007:
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-----------
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- little rendering code speedups
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- modified HV counter tables (fix graphic glitches in Skitchin's sky, Lotus 2 Recs, Panorama Cotton, Dashin Desperados & maybe more)
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- completely rewrote DMA timings emulation so that it works for all games (no more cpu freezing)
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- added all DMA tranfer rates handling for each three DMA modes and added dma busy flag emulation
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- modified interrupts handling on VDP register #0 and #1 writes (fix Lemmings status bar)
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- added VDP RAM write latency (fix Chaos Engine/Soldier of Fortune gfx glitches)
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- modified FM timers handling a bit (fix Vectorman2 music)
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- corrected Sprite Limit rendering (fix Sonic 1 & Micromachines 2 title screens)
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- corrected IO Registers writes (fix Decap' Attack controls, no more need for alternate input)
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- corrected 6 Buttons Pad emulation (fix 6buttons detection in Mortal Kombat 3, Comix Zone and other 6-buttons compatible games)
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- modified sound mixing a bit according to Generator sourcecode (FM and PSG ratios seems more correct)
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- added separate CPU Region (USA, Europe, Japan,...) & Speed (PAL or NTSC) choice in menu options
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- modified main frame synchro in PAL mode (fix sound glitch in this mode), thanks to Softdev for the solution
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- added savestates support (go to SRAM menu, memory card supports only)
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07/02/2007: (Eke-Eke)
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---------------------
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- fm timers fixed (fix missing music in Castle of Illusion, Quackshot, Undead Line, Wonderboy in Monster Lair, Cal 50, Turbo Outrun, Thundeforce 4 and maybe more)
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- added complete EEPROM emulation (save support now works fine in Wonderboy5, Megaman Willy Wars, NBA Jam...) (credits to Notaz, adapted from Picodrive code)
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- added preliminar dma timing emulation (fix bottom screen in Legend of Galahad) (credits to Notaz, adapted from Picodrive code)
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- hack: clear Vint pending after Hint (INT level 4) acknowledge (fix Fatal Rewind)
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- hack: modify read_bus16 to return a random value (fake fetch) (fix Time Killers)
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- modified cpu execution timings, with more correct hblank and interrupts timing (fix ISS Deluxe, Double Dragon 2 and certainly more) (Based on Gens code)
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- modified busreq mechanism: better synchro between z80 & 68k (no need to dejitter anymore) (Based on Gens code)
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- added sprite collision detection (fix Strider 2)
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- modified dma fill operation for big endian platform (fix Contra Hardcorps gfx garbage)
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Based on Softdev's initial releases
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WIP1.2 unzip.c
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Added partial zip support
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WIP1.1 sio.c added
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Added six button pad support from x86 Gens
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Additional changes based on Charles MacDonald's gen-hw.txt
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WIP1 07 March 2006
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Updated SN76496 driver
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Added GX Hardware Scaling |