695 lines
41 KiB
Plaintext
695 lines
41 KiB
Plaintext
--------------------
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Genesis Plus History
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--------------------
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All recent changes were backported from the GX version (Gamecube/Wii port), maintained by Eke-Eke.
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Please look at http://code.google.com/p/genplus-gx/ for more infos.
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---------------------------------------------------------------------------------------------------------
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Genesis Plus GX 1.7.4 (21/06/2013) (Eke-Eke)
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[Core/SCD]
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---------------
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* fixed access to read-only registers on Main-CPU side ("Batman Returns" platform level freeze)
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* fixed & improved emulation of PRG-RAM write protection register ("Lunar Eternal Blue" japanese version freeze)
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* improved SUB & MAIN-CPU synchronization ("Dracula Unleashed" freeze when using US Model 2 BIOS)
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* improved CPU polling detection
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* improved CDD emulation & added CD drive access time for SEEK command ("Panic!/Switch" intro missing scene)
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* added missing reinitialization of MAIN-CPU PRG-RAM bank on reset
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* added .OGG audio tracks support through LIBTREMOR
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[Core/Sound]
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---------------
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* fixed YM2612 configurable DAC depth emulation
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* improved Low-Pass filter
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* added optional "MONO" output mode
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[Core/VDP]
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---------------
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* fixed FIFO access timings when using invalid write code value ("Clue" menu)
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* fixed DMA Copy with undocumented code value ("Fatal Labyrinth" end sequence)
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* minor code fixes & optimizations
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[Core/CPU]
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---------------
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* optimized 68k stack read/write functions
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* fixed broken 68k address error emulation
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* fixed 68k interrupt behavior (prevents interrupts from being executed multiple time when 68k is halted)
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* fixed Z80 registers initial state, added proper initialization when using PBC (verified on real hardware by Charles McDonald)
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[Core/MD]
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---------------
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* fixed SRAM incompatibilities between BIG ENDIAN & LITTLE ENDIAN platforms (note: this breaks old .srm files with LITTLE ENDIAN platform ports)
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* added support for a few recently dumped unlicensed games
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* added auto-detection of byte-swapped ROM files
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---------------------------------------------------------------------------------------------------------
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Genesis Plus GX 1.7.3 (26/11/2012) (Eke-Eke)
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---------------------------------------------------------------------------------------------------------
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no win32/SDL port changes
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---------------------------------------------------------------------------------------------------------
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Genesis Plus GX 1.7.2 (24/11/2012) (Eke-Eke)
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[Core/SCD]
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* added default TOC for Shadow of the Beast II (prevent hangs when audio tracks are missing)
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* fixed CD-DA fader muting
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* fixed PCM channels panning on reset
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* fixed backup RAM file management when using disc swap with Mode 1 cartridge
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* incremented CD drive read latency: fixes Space Adventure Cobra (freeze when opening coffin at 2nd morgue scene)
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* improved CDD emulation accuracy: fixes Snatcher (freeze at the end of Act 2) & various CD player bugs
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* improved MAIN-SUB memory map mirroring in SCD mode (verified on real hardware by Charles McDonald)
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* implemented cycle-accurate "stopwatch" register emulation
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[Core/Sound]
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* fixed broken PSG noise frequency
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* fixed incorrect Game Gear PSG stereo emulation
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* implemented cycle-accurate Game Gear PSG stereo
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[Core/VDP]
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* fixed broken VDP DMA from SVP ROM latency (graphic errors in Virtua Racing)
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[Core/MD]
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---------------
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* added Super Mario World 64 (unlicensed) cartridge hardware emulation
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[Core/Input]
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---------------
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* added automatic detection for CD games with Justifier/Menacer support
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* improved Justifier/Menacer emulation
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---------------------------------------------------------------------------------------------------------
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Genesis Plus GX 1.7.1 (13/10/2012) (Eke-Eke)
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---------------------------------------------------------------------------------------------------------
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[Core/SCD]
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---------------
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* added support for CUE files
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* added CD-DA tracks emulation (needs CUE+BIN or ISO+WAV images)
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* added CD fader emulation
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* added CDD "Fast FW" & "Fast RW" commands emulation
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* improved CDD TOC emulation (random freezes in Sonic CD, Switch/Panic, Final Fight CD and probably many others)
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* improved PCM chip synchronization with SUB-CPU (missing speeches in Willy Beamish)
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* fixed PCM chip emulation (random hangs in Snatcher, missing sound effects in Switch/Panic, Final Fight CD, Wonderdog...)
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* fixed Word-RAM memory mode on soft-reset (missing logo gfx effects)
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* fixed SUB-CPU access to unused areas when using PC-relative instructions (Final Fight CD first boss random crash)
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* fixed CPU idle loop detection on memory mode register access (Pugsy CD first boss slowdown)
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* fixed Mode 1 emulation (cartridge boot mode)
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[Core/Sound]
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* replaced FIR resampler by Blip Buffer for FM resampling
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* modified SN76489 core for use of Blip Buffer
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* improved PSG & FM chips synchronization using Blip Buffer
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* added Game Gear PSG stereo support
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* fixed SG-1000 specific PSG noise
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* fixed YM2612 LFO AM waveform (California Games surfing event)
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* fixed YM2612 phase precision
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* minor optimizations to YM2612 core
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[Core/Game Gear]
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* added support for CJ Elephant Fugitive (recently released by SMS Power)
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* added Game Gear extended screen option
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[Core/Genesis]
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---------------
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* added support for a few recently dumped (but unreleased) games
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[Core/General]
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---------------
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* improved ROM & CD image file loading
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* various code cleanup
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---------------------------------------------------------------------------------------------------------
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Genesis Plus GX 1.7.0 (01/07/2012) (Eke-Eke)
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---------------------------------------------------------------------------------------------------------
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[Core/SCD]
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---------------
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* added Mega CD / Sega CD hardware emulation (incl. Sub 68K, CDD, CDC, PCM, GFX rotation/scaling, etc)
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* added .ISO & .BIN CD image file support
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* added 512K backup cartridge RAM support
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* added savestate support for CD games
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NOTES:
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~~~~~~
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* to play CD games, original BIOS ROM files are required in /genplus/bios/ directory: unzip & rename them to bios_CD_U.bin, bios_CD_E.bin, bios_CD_J.bin
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* CD audio tracks (CD-DA) are not supported (yet)
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[Core/CPU]
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* modified 68k core for Mega CD / Sega CD support
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* optimized 68k core using prebuild const tables
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[Core/VDP]
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* improved DMA accuracy
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* improved accuracy of nametables register & VSRAM writes during HBLANK: fixes "The Adventures of Batman & Robin" (graphical issues during 2nd Boss fight).
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* added support for 8-bit VRAM writes with undocumented code value (verified on real hardware by Nemesis)
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[Core/Sound]
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* improved synchronization between SN76489 & YM2162 cores.
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* improved accuracy of SN76489 core timings.
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[Core/MD]
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* added support for some recently dumped unlicensed games.
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* improved emulation of 32k bankswitch hardware used by a few unlicensed games.
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* fixed behavior of Z80 banked reads from 68k RAM (verified on real hardware).
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* fixed support for 128K Pro Action Replay ROM.
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[Core/MS]
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* added support for all recent korean ROM dumps by SMS Power.
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* added emulation of korean multi-game mapper (4-Pak All Action)
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* added pseudo-random RAM pattern initialization on Mark-III and Japanese Master System (fixes "Alibaba and 40 Thieves" & "Block Hole")
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* added port $3E emulation & internal BOOTROM support (Master System & Game Gear only).
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[Core/General]
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* added an option to set VDP mode (PAL/NTSC) independently from console region.
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* added an option to select original system master clock frequency (PAL/NTSC/AUTO), emulation will run at selected frequency when VSYNC is disabled.
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* fixed 68k context loading/saving (Sol Deace).
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* fixed C89 incompatibilities for better portability.
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* removed use of "long int" type for portability on 64-bit platforms.
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* moved savestate zlib compression out of emulation core (for ports that don't use it).
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* various optimizations.
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[Gamecube/Wii]
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* removed ROM load device selection from Load Menu: default ROM device must now be configured in menu settings.
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* added specific load buttons, browsers & saved paths for each systems, this also fixes slowdowns caused by screenshot loading when browsing from slow devices.
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* added support for left/right buttons as page up/down keys in ROM browsers
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* added right analog stick as default "return to menu" key for Gamecube controllers
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* added alternate remappable menu key combo for Gamecube controllers
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* added an option to disable VSYNC (emulator is synced with audio hardware instead of video).
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* added an option to boot system from "BIOS", with or without cartridge.
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* added Master System & Game Gear "BIOS" support (files should be named bios_U.sms, bios_J.sms, bios_E.sms & bios.gg and copied to /genplus/bios directory).
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* replaced "Hard Reset" button by a Soft Reset for systems having a Reset button (Mega Drive / Genesis & Master System)
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* State & SRAM files are now only compressed when saving to Gamecube Memory Cards
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* various fixes & cleanup.
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* compiled with devkitPPC r26 & libogc 1.8.11.
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[Gamecube]
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* improved progressive mode support when component cable is detected (hold B during startup to switch menu video mode configuration)
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---------------------------------------------------------------------------------------------------------
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[07/08/2011] version 1.6.0 (Eke-Eke)
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---------------------------------------------------------------------------------------------------------
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[Core/Sound]
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* added YM2413 emulation in Master System compatibility mode.
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* fixed SN76489 noise boost initialization.
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* minor YM2612 core optimizations.
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[Core/VDP]
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* added accurate emulation of SG-1000, Master System (315-5124, 315-5246) & Game Gear VDP.
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* added support for all TMS9918 rendering modes.
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* improved Mega Drive VDP timings accuracy in Master System Compatibility mode.
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* fixed color palette initialization.
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* fixed shifted sprites rendering in Mode 4.
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* modified pixel rendering support (pixel depth is now forced at compilation time).
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[Core/CPU]
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* optimized 68k core (rewrote 68k interrupt handling, removed multiple CPU types support & unused code) for 5~8% speed improvment
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[Core/IO]
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* added accurate emulation of Master System (315-5216, 315-5237, 315-5297) & Game Gear I/O controllers.
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* added Terebi Oekaki tablet emulation.
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* improved Mouse emulation (fixes mouse support in Cannon Fodder).
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* improved Justifier emulation (fixes gun support in Lethal Enforcers 2).
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* improved 6-Buttons control pad emulation (fixes Duke Nukem 3D)
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* modified lightgun emulation to use common key inputs for all devices.
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* 2-buttons controller is now picked by default for Master System games.
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[Core/MD]
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* added copy-protection hardware emulation for some new dumped games (Tiny Toon Adventures 3, Mighty Morphin Power Rangers & The Battle of Red Cliffs).
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* added Game Toshokan in EEPROM database (verified on real cartridge).
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* fixed Micro Machines 2 - Turbo Tournament EEPROM size (verified on real cartridge).
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* modified SRAM banswitch hardware emulation to be more compatible with some hacks.
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[Core/MS]
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* added Cyborg Z to Korean mapper database.
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[Core/GG]
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* added 93C46 EEPROM emulation (Majors Pro Baseball, World Series Baseball & World Series Baseball 95).
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[Core/General]
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* added support for .mdx ROM format.
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* added Game Gear & SG-1000 ROM support.
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* added accurate emulation of SG-1000, Master System (I, II) & Game Gear hardware models for 100% compatibility.
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* updated to new Genesis Plus license (see http://cgfm2.emuviews.com/)
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* removed DOS port
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* various code cleanup.
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---------------------------------------------------------------------------------------------------------
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[31/03/2011] version 1.5.0 (Eke-Eke)
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[Core/VDP]
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* added support for Master System compatibility mode (Z80 ports access mode), incl. Mode 5 rendering.
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* added Mode 4 rendering for both Genesis & Master System modes.
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* added alternate BG planes rendering functions (should be faster on PPC architectures).
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[Core/IO]
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* added support for Master System compatibility mode (Z80 ports access mode).
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* added Master System peripherals emulation (Control Pad, Paddle, Sports Pad & Light Phaser).
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* added XE-1AP (analog controller) emulation.
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* added Activator emulation.
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[Core/Extra]
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* added support for all known Master System cartridge mappers.
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* added copy-protection hardware emulation for a few MD unlicensed games: fixes 777 Casino (crash when talking to bunny girls).
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(NB: most of those unlicensed games seem to have been already patched by ROM dumpers, main purpose is documenting them)
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* added support for Top Shooter arcade board controller. (A=Shoot, B=Bet, C/RIGHT=Coins, START=Start, hold UP on startup to enter service mode)
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* improved King of Fighters 98 mapper emulation (registers address decoding is now 100% accurate)
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* fixed Game Genie when several codes affect same ROM address.
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* fixed EEPROM types for Brian Lara Cricket & NBA Jam TE (verified on real cartridges)
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[Core/General]
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* added Master System compatibility mode emulation (automatically enabled when loading ROM file with .sms extension).
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* improved savestate stability & compatibility (support for old 1.4.x savestates is preserved)
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* various code cleanup & comments.
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---------------------------------------------------------------------------------------------------------
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[04/12/2010] version 1.4.1 (Eke-Eke)
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---------------------------------------------------------------------------------------------------------
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[Core/Sound]
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* implemented Blargg's blip buffer in SN76489 core (all channels are now lineary interpolated)
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[Core/VDP]
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* improved 2-cell vscroll emulation accuracy, as verified on real hardware (Gynoug, Cutie Suzuki no Ringside Angel, Formula One, Kawasaki Superbike Challenge)
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* improved VBLANK flag accuracy, as observed on real hardware.
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* improved DMA operations accuracy, writes are now performed on a scanline basis: fixes Gaiares (flickering title screen).
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* improved DMA Fill timing accuracy.
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* fixed DMA with bad code values: fixes Williams Arcade Classics (corrupted gfx after soft reset).
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* fixed horizontal resolution changes during HBLANK: fixes Bugs Bunny in Double Trouble (2nd stage).
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* fixed Vertical Counter in interlace mode 1, as observed on real hardware.
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* fixed horizontal border width, as observed on real hardware.
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* various code improvments & optimizations.
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[Core/CPU]
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* fixed state of Z80 registers on reset (sound issues with Defender & Defender 2 in Williams Arcade Classics)
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* implemented 68k undocumented flags behavior for DIVU/DIVS instructions (Bloodshot / Battle Frenzy)
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[Core/Extra]
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* improved emulation of copy-protection hardware found in some unlicensed cartridges (Mulan, Pocket Monsters II).
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* enabled simultaneous use of multitap & J-CART (Super Skidmarks 6-player mode)
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* improved savestate format: added DMA, SVP, cartridge mapping & internal registers state informations
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* improved unlicensed ROM mappers emulation
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* added Chinese Fighters III mapper support
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* added Top Fighter mapper support
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* fixed Barver Battle Saga mapper support
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* fixed cartridge hardware soft-reset (Game Genie, SVP, ...)
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* fixed Game Genie registers byte reads
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----------------------------------------------------------------------------------------------------------------------------------------------------
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[06/30/10] version 1.4.0 (Eke-Eke)
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----------------------------------------------------------------------------------------------------------------------------------------------------
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[Core/Sound]
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* completely rewrote sound processing/mixing: sound chips are now clocked with exact output framerate
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to ensure 100% smooth video & audio playback, with no lag or skipping, while rendering an accurate number
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of samples per frame and keeping PSG & FM chips in sync.
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* improved PSG & FM chips synchronization with CPU execution (fixed point precision).
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* improved YM2612 core general accuracy (SSG-EG, CSM mode,...) (based upon Nemesis recent tests on real hardware)
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* improved YM2612 LFO emulation accuracy: fixes "Spider-Man & Venom : Separation Anxiety" (intro)
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* fixed YM2612 bug with Timer B: fixes "Langrisser Hikari II"/"Der Langrisser II" (Sega logo)
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* fixed YM2612 context saving/loading.
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* fixed YM2612 state on reset.
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* removed outdated & less accurate Gens YM2612 core
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* added configurable YM2612 DAC resolution emulation.
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* added configurable & faster FIR resampler (thanks to Blargg & AamirM), removed libsamplerate support.
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* added configurable Low-Pass filtering
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* added configurable 3-Band Equalizer (thanks to Neil C).
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* added an option to boost SN76489 Noise Channel.
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* adjusted SN76489 cut-off frequency.
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[Core/VDP]
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* added support for CRAM writes during horizontal blanking (Striker, Zero the Kamikaze Squirrel,...)
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* added support for 2-Cell vertical scrolling in Interlaced 2 mode
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* added support for some undocumented mode register bits
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* added proper emulation of HV Counter latch: fixes Sunset Riders intro
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* added pixel-accurate emulation of mid-line display on/off (Nigel Mansell World Championship PAL, Ren & Stimpy's Invention PAL,...)
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* improved FIFO timings accuracy: fixes Sol Deace intro
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* improved sprite masking accuracy (thanks to Nemesis for his test program)
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* improved sprites processing accuracy: fixes (un)masked sprites in Mickey Mania (3D level), Sonic 2 (VS mode).
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* improved HBLANK flag timing accuracy: fixes Mega Turrican (Sky level)
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* improved horizontal blanking & HINT/VINT occurence timing accuracy, as measured on real hardware.
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* improved HCounter accuracy in 40-cell mode, as measured on real hardware.
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* improved color accuracy in VDP highlight mode to match results observed on real hardware
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[Core/CPU]
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* updated Z80 core to last version (fixes interrupt Mode 0 timing and some BIT instructions).
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* fixed some Z80 instructions timing.
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* improved Z80 interrupt accuracy
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* improved 68k accuracy (initial Reset timing + auto-vectored interrupts handling).
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* improved 68k timing accuracy for DIVU/DVIS (thanks to Jorge Cwik) & MULU/MULS instructions.
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* improved Z80 & 68k cpu execution/synchronization accuracy by using Master Clock as common reference (now run exactly 3420 M-Cycles per line).
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* modified Z80 & 68k cores to directly use external cycle count instead of intermediate counters.
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[Core/Extra]
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* added Game Genie hardware emulation (Game Genie ROM is now fully supported).
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* added Action Replay hardware emulation (Action replay ROM is now fully supported).
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* added S&K "Lock-On" hardware emulation (you can "lock" any games to Sonic & Knuckles).
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* added Cartridge "hot swap" feature.
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* added missing EEPROM support in some games.
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* added accurate TMSS emulation (VDP lock-out)
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* fixed Realtec mapper emulation: fixes missing sound in Balloon Boy / Funny World.
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* fixed lightgun auto-detection: fixes default cursor position in Lethal Enforcers II.
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* lots of code cleanup, bugfixes & optimization.
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----------------------------------------------------------------------------------------------------------------------------------------------------
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[12/14/08] version 1.3.0 (Eke-Eke)
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----------------------------------------------------------------------------------------------------------------------------------------------------
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* YM2612 bugfixes (MAME core):
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.fixed EG Decay->Substain transition when SL & DR are minimals: fix tracks #3 and #9 in "Mega Turrican"
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.fixed a bug in SSG-EG emulation code: fix Level 1 music in "Alisia Dragoon"
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.modified SSG-EG Decay End Level: fix some sound effects (ChainSaw, Zap...) in "Beavis & Butthead"
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.improved Detune overflow accuracy: fix very high frequency sounds in many games
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.fixed registers 0x20-0x26 Reset state: fix intro music in "B.O.B"
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.reverted incorrect fix with KEY ON: fix "Flamethrower" sound effect in "Alien 3" and many others
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* adjusted HCounter values: fixes line flickering in "Sonic 3D" bonus stage
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* adjusted VINT timing: fixes hang-up in "V.R Troopers"
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* improved HBLANK flag accuracy: fixes line flickering in "Gouketsuji Ichizoku"
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* fixed broken Z80 access to WRAM: fixes hang-up in "Mamono Hunter Youko"
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* modified JCART emulation: fixes corrupted tracks logo in "Micro Machines 2"
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* added Blargg's NTSC Filters support (NTSC video artifacts emulation)
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* optimized VDP rendering core, rewrote 68k interface (memory handlers, cycle execution, interrupts): greatly improved emulation speed
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----------------------------------------------------------------------------------------------------------------------------------------------------
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[08/26/08] (Eke-Eke)
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----------------------------------------------------------------------------------------------------------------------------------------------------
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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
|
|
* disabled "Address Error" emulation when UMK3 hack is loaded: fix game crashing after a round ends up
|
|
* added support for some more unlicensed games: Pocket Monster, King of Fighter 98, Soul Blade (credits to Haze)
|
|
* improved Menacer emulation: fix lightgun support in Body Count & T2: The Arcade Game
|
|
* added Konami Justifier emulation: fix lightgun support in Lethal Enforcers 1 & 2
|
|
* added Sega Mouse emulation (Populous 2, Body Count, Shangai 2, Fun'n Games, ...)
|
|
|
|
|
|
----------------------------------------------------------------------------------------------------------------------------------------------------
|
|
[07/16/08] (Eke-Eke)
|
|
----------------------------------------------------------------------------------------------------------------------------------------------------
|
|
|
|
* adjusted (again) HINT timings: fix Double Dragon 2 (game freezed), hopefully does not break anything else
|
|
* fixed broken EEPROM support for Codemaster games
|
|
* modified input update timings: fix Dungeons & Dragons * Warriors of the Eternal Sun (thanks to Notaz)
|
|
* added support for "Ultimate Mortal Kombat Trilogy" hack (max. size supported is 10MBytes)
|
|
* added (VERY) preliminar support for PICO roms (credits to Notaz for his documentation)
|
|
* improved YM2612 emulation (credits to Nemesis for his tests on real hardware):
|
|
.implemented phase overflow emulation: improved fix for special music instrument used in Comix Zone, Flashback, Ariel, Shaq Fu...
|
|
.improved SSG-EG emulation in MAME core (also based on additional code from Alone Coder)
|
|
.improved Timers emulation accuracy
|
|
.improved Enveloppe Generator accuracy
|
|
.fixed Channel 3 CSM mode emulation
|
|
.implemented sample interpolation in MAME core to emulate the chip at original frequency (HQ YM2612 mode, from gens)
|
|
|
|
|
|
----------------------------------------------------------------------------------------------------------------------------------------------------
|
|
[06/01/08] (Eke-Eke)
|
|
----------------------------------------------------------------------------------------------------------------------------------------------------
|
|
|
|
* improved HCounter accuracy: fix graphic glitches in "Striker (Europe)"
|
|
* improved HINT timing accuracy: fix flickering in "Zero The Kamikaze Squirrel (USA)"
|
|
* improved rendering accuracy when backdrop color is modified during HBLANK (Road Rash I/II/III)
|
|
* fixed broken Game Genie support
|
|
|
|
|
|
----------------------------------------------------------------------------------------------------------------------------------------------------
|
|
[04/19/08] (Eke-Eke)
|
|
----------------------------------------------------------------------------------------------------------------------------------------------------
|
|
|
|
* modified VINT timings a little bit: fix lockup during Desert Strike's intro
|
|
* corrected 68k interrupts handling: fix graphic glitches in Darius II/Sagaia
|
|
|
|
|
|
----------------------------------------------------------------------------------------------------------------------------------------------------
|
|
[04/06/08] (Eke-Eke)
|
|
----------------------------------------------------------------------------------------------------------------------------------------------------
|
|
|
|
* updated SVP core: fix some perspective issues in Virtua Racing (thanks to Notaz)
|
|
* added internal SAT update during VRAM Fill: fix unmasked sprites during Battletech's intro
|
|
* fixed m68k core issues with gcc 4.2.3: fix Xperts, Lemmings 2, M1 Abrams Battle Tank
|
|
* forced YM2612 Enveloppe update: fix intro music in Batman&Robin (thanks to Aamir)
|
|
|
|
|
|
----------------------------------------------------------------------------------------------------------------------------------------------------
|
|
[03/01/08] (Eke-Eke)
|
|
----------------------------------------------------------------------------------------------------------------------------------------------------
|
|
|
|
* added SVP emulation: Virtua Racing is now emulated (big thanks to Notaz and TascoDeluxe)
|
|
* fixed VDP registers behaviour when VDP Mode 4 is enabled: fix Bass Masters Classic Pro, Captain Planet & The Planeeters
|
|
* corrected a bug in DMA Fill operation: fix James Pond 3, Rockman World/Megaman Willy Wars (corrupted VRAM)
|
|
* corrected typo errors in CPU cycle counters update: fix optiom screen music in "College Slam" and probably others games.
|
|
* added preliminary support of undocumented YM2612 bug: fixes soundtracks of Shaq Fu, Spiderman, Comix Zone, Ariel and some others
|
|
* added support for mappers & copy protection devices used in many unlicensed/pirate cartridges (see cart_hw.c for details)
|
|
* rewrote memory handlers for better modularity and some (little) speedup
|
|
* reduced Savestate size
|
|
|
|
|
|
----------------------------------------------------------------------------------------------------------------------------------------------------
|
|
[01/07/08] (Eke-Eke)
|
|
----------------------------------------------------------------------------------------------------------------------------------------------------
|
|
|
|
* fixed interleaved rom detection: roms with .smd extension should now work fine
|
|
* fixed a recently introduced bug in VDP registers writes: fixes bad colors in Toy Story (intro)
|
|
* updated list of games using EEPROM: added Sports Talk Baseball (internal memory check fixed) and Brian Lara Cricket
|
|
* fixed VINT flag update when VINT is disabled: fixes NCAA College Football
|
|
* adjusted DMA timings in H32 mode: fixes flickering in Out of this World, Kawasaki Superbike Challenge & Formula One
|
|
* adjusted line rendering and HBLANK timings: fixes flickering in Nigel Mansell's World Championship Racing, Deadly Moves/Power Athlete
|
|
* fixed unmapped ROM reads through Z80 Bank: fixes Zombie High (Proto)
|
|
* added support for custom ROM/RAM mapping used by Game no Kanzume Otokuyou
|
|
|
|
|
|
----------------------------------------------------------------------------------------------------------------------------------------------------
|
|
[12/28/07] (Eke-Eke)
|
|
----------------------------------------------------------------------------------------------------------------------------------------------------
|
|
|
|
* many sourcecode cleanup and optimization
|
|
* completely rewrote EEPROM emulation: now support all known EEPROM types (24C01-24C65) and mappers (Sega, Acclaim, EA, Codemasters)
|
|
used in a few games (now use internal game database) as external RAM. This should at least fix save support in the following games:
|
|
. NBA Jam (alternate Acclaim mapper)
|
|
. College Slam, Frank Thomas Big Hurt Baseball (24C65 type)
|
|
. NHLPA Hockey 93, Rings of Power (EA mapper)
|
|
. Micro Machines serie, Brian Lara Cricket 96/Shane Warne Cricket (Codemasters mapper)
|
|
* external RAM is now initialized to 0xFF by default: fix Micromachines 2, Dino Dini Soccer
|
|
* fixed SRAM 16-bits memory handlers: fix some Sega Sports and EA Sports games (NFL95, NBA Action 95, NHL97, NHL98,...)
|
|
* modified WRITE_xxx & READ_xxx macros for better portability and faster memory access on BIG ENDIAN platform
|
|
* completely rewrote BIG ENDIAN support in render.c and vdp.c: rendering should be a little faster
|
|
* rewrote ROM bankswitch emulation (Super Street Fighter II): ROM access are faster, using memory pointers instead of reading ROM copy from ARAM
|
|
* fixed leftmost Window/PlaneA column render and implemented Window bug (as described by Charles Mc Donald)
|
|
* improved "Sprite Limit" and "Sprite Collision" detection accuracy
|
|
* modified RGB565 Color Palette to use the full available color range (0-31;0-63)
|
|
* implemented "cycle accurate" HV Interrupt timings: fix Sesame's Street Counting Cafe, Legend of Galahad (intro)
|
|
* improved VDP access timings accuracy (added FIFO emulation): fix Double Clutch
|
|
* improved DMA timings accuracy: fix Winter Olympics (E), Arch Rivals and probably more
|
|
* fixed HCounter again: Road Rash serie (I,II,III) don't need timing hacks anymore
|
|
* fixed VCounter in Interlaced 2 mode: fix Combat Cars "VS-Mode"
|
|
* improved Interlaced 2 mode (double resolution) rendering: Sonic 2, Combat Cars ("VS-Modes") look far better
|
|
* added TMSS BIOS support (optional)
|
|
* rewrote part of the YM2162 MAME's core: fixed internal FM timers handling, removed non-YM2612 emulation code and unused multiple cpu support
|
|
* implemented "cycle accurate" FM timers & sound samples rendering
|
|
* improved Z80 Interrupt timing accuracy: fix Sonic 3 music slowdowns
|
|
* updated Z80 & 68000 cores to last MAME versions
|
|
* improved Soft Reset emulation: X-Men 2 and Eternal Champions (random character selection) now work more like on real hardware.
|
|
* added full overscan emulation (vertical & horizontal borders) for "pixel perfect" aspect ratio (tested against a real genesis)
|
|
|
|
|
|
----------------------------------------------------------------------------------------------------------------------------------------------------
|
|
[07/20/07] (Eke-Eke)
|
|
----------------------------------------------------------------------------------------------------------------------------------------------------
|
|
|
|
* corrected TeamPlayer support: fix multiplayer in Gauntlet 4 (Sept. version), Pengo and a lot of others
|
|
* added J-Cart support: enable multiplayer in Codemasters games (Pete Sampras, Micromachines games, Super Skidmarks)
|
|
* added serial EEPROM autodetection: fix games with bad SRAM informations in header (NBA Jam TE)
|
|
* added SVP faking: display 2D graphics in Virtua Racing (the game is however still unplayable)
|
|
* added support for more internal IO registers: fixe some unlicensed games (Wisdom Tree games...)
|
|
* added preliminary support for unmapped protection device: fix some unlicensed games with special built-in hardware (Squirell King, Lion King 2...)
|
|
* 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
|
|
in some games to enable special features or even complete the game (ex: X-Men).
|
|
|
|
|
|
----------------------------------------------------------------------------------------------------------------------------------------------------
|
|
[06/21/07] (Eke-Eke)
|
|
----------------------------------------------------------------------------------------------------------------------------------------------------
|
|
|
|
* added Multitap support (EA 4-Way Play and Sega Teamplayer): allowed up to four players in games supporting those peripherals
|
|
* added partial Sega Menacer lightgun support (use Analog Stick): automatically set when detecting the 6-in-1 Menacer game
|
|
|
|
|
|
----------------------------------------------------------------------------------------------------------------------------------------------------
|
|
[05/18/07] (Eke-Eke)
|
|
----------------------------------------------------------------------------------------------------------------------------------------------------
|
|
|
|
* you can now switch between FM cores without reseting the game. FM registers value are automatically restored when switching.
|
|
* removed the previous VINT timings modification because it brokes some games (Rocket Knight, Thunderforce III,...)
|
|
* added automatic Timing configuration (VDP latency, VINT timing & alternate Line Timing) at game loading, based upon specific romname detection.
|
|
This means you can still modify some of these options afterwards but they are now automatically set/unset when loading a game which need
|
|
special timing fixes. These fixes are also automatically desactivated when the current game doesn't need them.
|
|
For information, games that are actually detected and need special timings to run properly are:
|
|
.Legend of Galahad & Road Rash series (single line not rendered properly)
|
|
.Sesame Street Counting Cafe (don't boot)
|
|
.Chaos Engine/Soldiers of Fortune (graphic glitches on scrolling)
|
|
|
|
|
|
----------------------------------------------------------------------------------------------------------------------------------------------------
|
|
[05/08/07] (Eke-Eke)
|
|
----------------------------------------------------------------------------------------------------------------------------------------------------
|
|
|
|
* VINT timings are now a little more accurate: fixes Sesame's Street Counting Cafe
|
|
* SN76496 MAX_OUTPUT back to normal
|
|
* modified FB_WNOISE value in SN76496 core according to John Kortink's last informations
|
|
* added support for Maxim's PSG core, same as used in SMSPLUS (it becomes the default PSG core)
|
|
* updated FM core to the latest MAME version
|
|
* corrected DAC output level (fixes voices and some special FX being too low)
|
|
* added support for Gens YM2612 (FM) core (MAME's one still remains default FM core)
|
|
* added configurable preamplification for each sound cores (see Emulator Options)
|
|
* added some other configurable sound options (boost overall volume, FM improvment for Gens YM2612)
|
|
|
|
|
|
----------------------------------------------------------------------------------------------------------------------------------------------------
|
|
[04/11/07] (Eke-Eke)
|
|
----------------------------------------------------------------------------------------------------------------------------------------------------
|
|
|
|
* corrected MAX_OUTPUT value in SN76496 core: fix PSG sound (SFX) volume
|
|
|
|
|
|
----------------------------------------------------------------------------------------------------------------------------------------------------
|
|
[03/17/07] (Eke-Eke)
|
|
----------------------------------------------------------------------------------------------------------------------------------------------------
|
|
|
|
* added an option to enable alternate line rendering timing (fix single line error in Road Rash series and Legend of Galahad's Intro)
|
|
* Color RAM update now always reset color 0 to border color (fix color glitches in Mortal Kombat,...) (thanks to Noop's for the idea)
|
|
|
|
|
|
----------------------------------------------------------------------------------------------------------------------------------------------------
|
|
[03/09/07] (Eke-Eke)
|
|
----------------------------------------------------------------------------------------------------------------------------------------------------
|
|
|
|
* modified HV counter tables (fix graphic glitches in Skitchin's sky, Lotus 2 Recs, Panorama Cotton, Dashin Desperados & maybe more)
|
|
* completely rewrote DMA timings emulation so that it works for all games (no more cpu freezing)
|
|
* added all DMA tranfer rates handling for each three DMA modes and added dma busy flag emulation
|
|
* modified interrupts handling on VDP register #0 and #1 writes (fix Lemmings status bar)
|
|
* added VDP RAM write latency (fix Chaos Engine/Soldier of Fortune gfx glitches)
|
|
* modified FM timers handling a bit (fix Vectorman2 music)
|
|
* corrected Sprite Limit rendering (fix Sonic 1 & Micromachines 2 title screens)
|
|
* corrected IO Registers writes (fix Decap' Attack controls, no more need for alternate input)
|
|
* corrected 6 Buttons Pad emulation (fix 6buttons detection in Mortal Kombat 3, Comix Zone and other 6-buttons compatible games)
|
|
* modified sound mixing a bit according to Generator sourcecode (FM and PSG ratios seems more correct)
|
|
|
|
|
|
----------------------------------------------------------------------------------------------------------------------------------------------------
|
|
[02/07/07] (Eke-Eke)
|
|
----------------------------------------------------------------------------------------------------------------------------------------------------
|
|
|
|
* fixed fm timers (fix missing music in Castle of Illusion, Quackshot, Undead Line, Wonderboy in Monster Lair, Cal 50, Turbo Outrun, Thundeforce 4 and maybe more)
|
|
* added complete EEPROM emulation (save support now works fine in Wonderboy5, Megaman Willy Wars, NBA Jam...) (credits to Notaz, adapted from Picodrive code)
|
|
* added preliminar dma timing emulation (fix bottom screen in Legend of Galahad) (credits to Notaz, adapted from Picodrive code)
|
|
* hack: clear Vint pending after Hint (INT level 4) acknowledge (fix Fatal Rewind)
|
|
* hack: modify read_bus16 to return a random value (fake fetch) (fix Time Killers)
|
|
* modified cpu execution timings, with more correct hblank and interrupts timing (fix ISS Deluxe, Double Dragon 2 and certainly more) (Based on Gens code)
|
|
* modified busreq mechanism: better synchro between z80 & 68k (no need to dejitter anymore) (Based on Gens code)
|
|
* added sprite collision detection (fix Strider 2)
|
|
* modified dma fill operation for big endian platform (fix Contra Hardcorps gfx garbage)
|
|
|
|
|
|
----------------------------------------------------------------------------------------------------------------------------------------------------
|
|
[05/25/03] (Charles MacDonald)
|
|
----------------------------------------------------------------------------------------------------------------------------------------------------
|
|
|
|
* Fixed a typo that made Z80 banked access to the VDP registers always fail.
|
|
|
|
|
|
----------------------------------------------------------------------------------------------------------------------------------------------------
|
|
[05/17/03] (Charles MacDonald)
|
|
----------------------------------------------------------------------------------------------------------------------------------------------------
|
|
|
|
* Modified the rendering code to handle unaligned longword access to memory.
|
|
|
|
|
|
----------------------------------------------------------------------------------------------------------------------------------------------------
|
|
[04/20/03] (Charles MacDonald)
|
|
----------------------------------------------------------------------------------------------------------------------------------------------------
|
|
|
|
* Modified 68000 emulator to prevent 'tas.b $mem' from writing data back
|
|
after a read (fixes Gargoyles).
|
|
* Fixed bug in 68000 emulator to swap order of words written for address
|
|
register indirect pre-decremented writes (fixes Jim Power graphics).
|
|
* Added support for 240-line displays (for Super Skidmarks).
|
|
* Rewrote part of the interrupt handling (fixes some raster effects).
|
|
* Removed sprite collision detection code (never really worked).
|
|
* Optimized sprite rendering inner loop.
|
|
|
|
|
|
----------------------------------------------------------------------------------------------------------------------------------------------------
|
|
[04/13/03] (Charles MacDonald)
|
|
----------------------------------------------------------------------------------------------------------------------------------------------------
|
|
* Finished up memory map for VDP DMA V-bus reads.
|
|
* Fixed handling of 68000 writes to I/O chip at even addresses.
|
|
* Fixed bit 7 handling of control register in I/O chip.
|
|
* Finished up Z80 memory map.
|
|
* Added code to handle Genesis hardware lock-ups.
|
|
* Removed some faulty code from the 68000 memory map handlers.
|
|
|
|
|
|
----------------------------------------------------------------------------------------------------------------------------------------------------
|
|
[03/22/03] (Charles MacDonald)
|
|
----------------------------------------------------------------------------------------------------------------------------------------------------
|
|
|
|
* Completed implementation of Z80 banked memory handlers.
|
|
|