The-Homebrew-Cloud/Genesis-Plus-GX
2
0
Fork 0
mirror of https://github.com/ekeeke/Genesis-Plus-GX.git synced 2024-11-09 04:15:14 +01:00
Code Issues Packages Projects Releases Wiki Activity
2b78421402
Genesis-Plus-GX/source/unused
History
ekeeke31 2b78421402 [Core] 
------

* improved 68k accuracy (initial reset timing + auto-vectored interrupts handling).
* modified Z80 & 68k cores to directly use external cycle count instead of intermediate counters.
* improved Z80 & 68k cpu execution/synchronization accuracy, now use Master Clock as common clock reference.
* improved PSG & FM chips synchronization with CPU execution (fixed point precision).
* completely rewrote sound output processing & mixing: sound chips are now clocked with exact output frame rate
to ensure 100% smooth video & audio playback, with no lag or skipping, while still rendering an accurate number
of samples per frame. This will also make fast-forward implementation (video AND sound) more trivial.
* improved color accuracy in VDP highlight mode to match results observed on real hardware.
* improved sprites processing timing accuracy: fixes (un)masked sprites in Mickey Mania (3D level), Sonic 2 (VS mode).
* improved horizontal blanking & HINT/VINT occurrence timing accuracy, as measured on real hardware.
* improved H-Counter accuracy in 40-cell mode, as measured on real hardware.
* optimized Z80 bus status signals
* usual code cleanup

[GCN/WII]
---------
fixed ASNDLIB exit when returning to game
fixed audio/video startup sync
modified audio back-end engine according to new audio processing core (see above)
2010-01-24 11:41:53 +00:00
..
dos [Core] 2010-01-24 11:41:53 +00:00
win [Core] 2010-01-24 11:41:53 +00:00
CHANGELOG.txt +added proper license/copyright stuff 2009-05-13 14:26:55 +00:00
PORTING.txt modified documentation files 2009-05-13 14:33:15 +00:00
README.txt +added proper license/copyright stuff 2009-05-13 14:26:55 +00:00

README.txt 

 ----------------------------------------------------------------------------
 Genesis Plus  
 ----------------------------------------------------------------------------

 Version 1.2a
 by Charles Mac Donald
 WWW: http://cgfm2.emuviews.com

 additional code by Eke-Eke
 WWW: http://gxdev.wordpress.com/


 What's New
 ----------

 see CHANGELOG


 Features (NEW!)
 ---------

    * cycle-accurate CPUs emulation & synchronization (68000, Z80, YM2612, SN76489)
    * cycle-accurate VDP emulation (DMA, FIFO, HV interrupts, HBLANK,…)
    * original frequency YM2612 emulation (High Quality FM)
    * basic hardware latency emulation
    * full overscan area (horizontal & vertical colored borders) emulation
    * TMSS BIOS support
    * PICO hardware support (experimental) 
    * 3-buttons & 6-buttons controllers
    * Sega Team Player & EA 4-Way Play multitap adapters (up to 8players !)
    * Sega Menacer & Konami Justifier lightguns
    * Sega Mouse & Sega Mega Mouse 
    * SVP DSP (Virtua Racing)
    * J-Cart
    * backup RAM (parallel SRAM/FRAM and serial EEPROM)
    * ROM bankswitch (Super Street Fighter 2)
    * SRAM switch (Phantasy Star 4, Legend of Thor, Sonic the Hedgehog 3)
    * ROM mappers & copy protection devices used in many unlicensed/pirate cartridges



 Usage
 -----

 The Windows version runs windowed in a 16-bit desktop with NO sound or
 joystick support.

 The DOS version has most of the functionality from SMS Plus, such
 as audio, joysticks, etc.

 Windows/DOS controls:

 Arrow Keys -   Directional pad
 A,S,D,F    -   1P gamepad, buttons A, B, C, Start
 Tab        -   Hard Reset 
 Esc        -   Exit program

 F7	    -	Load Savestate (game.gpz)
 F8	    -	Save Savestate (game.gpz)
 F9	    -	Toggle CPU clock: PAL(50hz)/NTSC(60hz)
 F10	    -   Soft Reset
 F11        -   Toggle Player # (keyboard/mouse)

 DOS only:

 End        -   Exit program
 F1-F4      -   Set frameskip level (F1 = no skip ... F4 = skip 3 frames)
 F5	    -	Log 68k memory access (for debug ONLY)
 F6	    -	Log messages (for debug ONLY)

 WIndows only:

 End        -   Exit program
 F1-F4      -   Set frameskip level (F1 = no skip ... F4 = skip 3 frames)
 F5	    -	Log messages (for debug ONLY)
 F6	    -   Toggle Turbo mode


 The mouse can be used for lightgun games, PICO games and when the Sega Mouse is activated.

 A SRAM file (game.srm) is automatically saved on exit and loaded on startup.

 DOS details:

 You can only support a second player if you are using a joystick driver
 that supports more than one joystick. (e.g. Sidewinder, dual pads, etc.)

 Type 'gen -help' on the command line for a list of useful options.

    -res <x> <y>    set the display resolution.
    -vdriver <n>    specify video driver.
    -depth <n>      specify color depth. (8, 16)
    -scanlines      use scanlines effect.
    -scale          scale display to full resolution. (slow)
    -vsync          wait for vertical sync before blitting.
    -sound          enable sound. (force speed throttling)
    -sndrate <n>    specify sound rate. (8000, 11025, 22050, 44100)
    -sndcard <n>    specify sound card. (0-7)
    -swap           swap left and right stereo output.
    -joy <s>        specify joystick type.

 Here is a list of all the video drivers you can pass as a parameter
 to the '-vdriver' option:

    auto, safe, vga, modex, vesa2l, vesa3, vbeaf

 Here is a list of all the joystick drivers you can pass as a parameter
 to the '-joy' option:

    auto, none, standard, 2pads, 4button, 6button, 8button, fspro, wingex,
    sidewinder, gamepadpro, grip, grip4, sneslpt1, sneslpt2, sneslpt3,
    psxlpt1, psxlpt2, psxlpt3, n64lpt1, n64lpt2, n64lpt3, db9lpt1, db9lpt2,
    db9lpt3, tglpt1, tglpt2, tglpt3, wingwar, segaisa, segapci, segapci2

 You can put any commandline option into a plain text file which should
 be called "gen.cfg". Put one option per line, please. Command line options
 will override anything in the configuration file.

 Currently the zip loading code can manage a zipfile where the game
 image is the first thing in it. If you try to open a huge archive of
 games, only the first will be played.

 Credits and Acknowlegements
 ---------------------------

 I would like to thank Omar Cornut, Christian Schiller, and Chris MacDonald
 for their invaluable help and support with this project.

 Richard Bannister for the Macintosh port and all of the code fixes and
 suggestions that have made Genesis Plus a better program.
 (http://www.bannister.org)

 Extra features, emulation accuracy & game compatibility improvments  by Eke-Eke
 (from the Gamecube/Wii port: http://code.google.com/p/genplus-gx )

 The Genesis emulator authors: Bart Trzynadlowski, Quintesson, Steve Snake,
 James Ponder, Stef, Gerrie, Sardu, Haze, Notaz, Nemesis, AamirM

 The regular people and many lurkers at segadev.

 People from SpritesMind.net forums

 The MAME team for the CPU and sound chip emulators.

 Maxim for his SN76489 emulator

 Stef (again) for his alternate YM2612 emulator
 
 Notaz for his SVP emulator

 Tasco Deluxe for his documentation of Realtec mapper

 Erik de Castro Lopo for his "Secret Rabbit Code" library aka libsamplerate

 Jean-Loup Gailly and Mark Adler for their useful zip library


 Contact
 -------

 Charles MacDonald
 E-mail: cgfm2@hotmail.com
 WWW: http://cgfm2.emuviews.com

 Eke-Eke
 E-mail: eke_eke31@yahoo.fr
 WWW: http://gxdev.wordpress.com/

 Legal
 -----

 Copyright (C) 1999, 2000, 2001, 2002, 2003  Charles MacDonald

 The source code is distributed under the terms of the GNU General Public
 License.

 The Z80 CPU emulator, 68K CPU emulator, and the YM2612 emulation code
 are taken from the MAME project, and terms of their use are covered under
 the MAME license. (http://www.mame.net)