mirror of
https://github.com/ekeeke/Genesis-Plus-GX.git
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187 lines
6.4 KiB
Plaintext
187 lines
6.4 KiB
Plaintext
----------------------------------------------------------------------------
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Genesis Plus
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----------------------------------------------------------------------------
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based on the original version 1.2a
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by Charles Mac Donald
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WWW: http://cgfm2.emuviews.com
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version 1.4
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by Eke-Eke
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WWW: http://code.google.com/p/genplus-gx
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What's New
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----------
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see CHANGELOG
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Features
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---------
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* NTSC (60Hz) & PAL (50Hz) hardware emulation
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* highly accurate 68000 & Z80 CPU emulation
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* highly accurate VDP emulation (HBLANK, DMA, FIFO, HV interrupts, undocumented registers, display mid-line changes…)
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* cycle-accurate YM2612 emulation (FM synthesis is done at the original frequency, using FIR resampling)
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* cycle-accurate chip synchronization (68000/Z80/YM2612/SN76489)
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* basic hardware latency emulation (VDP/68k, Z80/68k)
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* full overscan area (horizontal & vertical colored borders) emulation (optional)
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* accurate TMSS model emulation incl. internal BIOS support (optional)
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* Blargg's software NTSC filters support (optional)
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* PICO emulation (partial)
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* 3-buttons & 6-buttons controllers support
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* Sega Team Player & EA 4-Way Play multitap adapters support
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* Sega Menacer & Konami Justifier lightguns support
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* Sega Mouse support
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* J-Cart adapter support(Micro Machines & Pete Sampras series, Super Skidmarks)
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* SVP DSP emulation (Virtua Racing)
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* SRAM support (up to 64kB)
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* serial EEPROM emulation (all known chips)
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* ROM bankswitch hardware support (Super Street Fighter 2)
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* ROM/SRAM bankswitch hardware support (Phantasy Star 4, Legend of Thor, Sonic the Hedgehog 3)
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* emulates most banking & copy protection devices used in unlicensed/pirate cartridges
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* native Game Genie & Action Replay hardware emulation
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* Lock-On hardware emulation
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* support for ROM image up to 10MB (Ultimate MK3 hack)
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Usage
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-----
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The Windows version runs windowed in a 16-bit desktop with 48Hz sound using SDL but
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without joystick support.
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The DOS version has most of the functionality from SMS Plus, such
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as audio, joysticks, etc.
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Windows/DOS controls:
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Arrow Keys - Directional pad
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A,S,D,F - 1P gamepad, buttons A, B, C, StartTab - Hard Reset
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Esc - Exit program
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F7 - Load Savestate (game.gpz)
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F8 - Save Savestate (game.gpz)
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F9 - Toggle CPU clock: PAL(50hz)/NTSC(60hz)
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F10 - Soft Reset
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F11 - Toggle Border emulation (vertical only)
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F12 - Toggle Player # (keyboard/mouse)
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DOS only:
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F1-F4 - Set frameskip level (F1 = no skip ... F4 = skip 3 frames)
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Windows only:
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F4 - Toggle Audio (ONLY when Turbo mode is OFF)
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F6 - Toggle Turbo mode (ONLY when Audio is OFF)
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The mouse can be used for lightgun games, PICO games and when the Sega Mouse is activated.
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A SRAM file (game.srm) is automatically saved on exit and loaded on startup.
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DOS details:
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You can only support a second player if you are using a joystick driver
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that supports more than one joystick. (e.g. Sidewinder, dual pads, etc.)
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Type 'gen -help' on the command line for a list of useful options.
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-res <x> <y> set the display resolution.
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-vdriver <n> specify video driver.
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-depth <n> specify color depth. (8, 16)
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-scanlines use scanlines effect.
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-scale scale display to full resolution. (slow)
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-vsync wait for vertical sync before blitting.
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-sound enable sound. (force speed throttling)
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-sndrate <n> specify sound rate. (8000, 11025, 22050, 44100)
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-sndcard <n> specify sound card. (0-7)
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-swap swap left and right stereo output.
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-joy <s> specify joystick type.
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Here is a list of all the video drivers you can pass as a parameter
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to the '-vdriver' option:
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auto, safe, vga, modex, vesa2l, vesa3, vbeaf
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Here is a list of all the joystick drivers you can pass as a parameter
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to the '-joy' option:
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auto, none, standard, 2pads, 4button, 6button, 8button, fspro, wingex,
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sidewinder, gamepadpro, grip, grip4, sneslpt1, sneslpt2, sneslpt3,
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psxlpt1, psxlpt2, psxlpt3, n64lpt1, n64lpt2, n64lpt3, db9lpt1, db9lpt2,
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db9lpt3, tglpt1, tglpt2, tglpt3, wingwar, segaisa, segapci, segapci2
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You can put any commandline option into a plain text file which should
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be called "gen.cfg". Put one option per line, please. Command line options
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will override anything in the configuration file.
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Currently the zip loading code can manage a zipfile where the game
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image is the first thing in it. If you try to open a huge archive of
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games, only the first will be played.
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Credits and Acknowlegements
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---------------------------
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I would like to thank Omar Cornut, Christian Schiller, and Chris MacDonald
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for their invaluable help and support with this project.
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Richard Bannister for the Macintosh port and all of the code fixes and
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suggestions that have made Genesis Plus a better program.
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(http://www.bannister.org)
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Extra features, emulation accuracy & game compatibility improvments by Eke-Eke
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(from the Gamecube/Wii port: http://code.google.com/p/genplus-gx )
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The Genesis emulator authors: Bart Trzynadlowski, Quintesson, Steve Snake,
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James Ponder, Stef, Gerrie, Sardu, AamirM
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The regular people and many lurkers at segadev and spritesmind.net.
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The MAME team for the CPU and sound chip emulators.
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Maxim for his SN76489 emulator.
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Nemesis for his researches about the YM2612 and VDP.
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Notaz for his SVP emulator.
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Tasco Deluxe for his documentation of Realtec mapper.
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Haze for his reverse-engineering of most unlicensed games protection.
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Shay Green (Blargg) for his FIR Resampler & NTSC Video Filter.
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Neil C for his 3-Band EQ implementation.
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Jean-Loup Gailly and Mark Adler for their useful zip library.
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Contact
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-------
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Charles MacDonald
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E-mail: cgfm2@hotmail.com
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WWW: http://cgfm2.emuviews.com
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Eke-Eke
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E-mail: eke_eke31@yahoo.fr
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WWW: http://code.google.com/p/genplus-gx
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Legal
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-----
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Copyright (C) 1999, 2000, 2001, 2002, 2003 Charles MacDonald
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Copyright (C) 2006-2010 Eke-Eke
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The source code is distributed under the terms of the GNU General Public
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License.
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The Z80 CPU emulator, 68K CPU emulator, and the YM2612 emulation code
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are taken from the MAME project, and terms of their use are covered under
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the MAME license. (http://www.mame.net)
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