Yabause Wii

Yabause Wii
Yabause Wii
General
Author	Yabause team
Type	Console
Version	Unofficial r2926 beta26
License	GPL-2.0
Last Updated	2012/06/07
Links
	Download
	Website

This is an unofficial port of Yabause, a Sega Saturn emulator, and is the first for Wii to emulate the complex processes of the Sega Saturn.

Note that the Wii port is in testable status, and won't be officially supported until a later date.

Note that Yabause Team does not support Wii port, please do not ask the Yabause Team about unofficial versions.

Features

ISO or CUE file, cue file needs the files listed in cue file. (not support sega original CD, because Wii cannot read CD).
Wiimote, Classic, and Game Cube controllers.
Front SD/SDHC and USB storage (only FAT).
Save/load state.
Configure buttons.
Save settings.

Installation

Copy the contents in the HBC directory to your SD (including SDHC) card or USB storage.

Copy game ROMs files (.cue with needed files or .iso) to /yabause/games directory.

When there is /yabause directory in both SD card and USB storage, the files in SD card are given to priority.

Optional BIOS:

If you want, copy the bios file of the Sega Saturn to /yabause directory as the name bios.bin.
Note that the default setting is "Without bios". So you will need to change to "With bios" in the Settings submenu.
The current version of Yabause Wii can execute games without BIOS.
Some games need the bios file to run normally. However some games freeze with BIOS (e.g. Sega Rally Champ). So "With BIOS" is not almighty.

User guide

How to use

Load this emulator by a loader such as the Homebrew Channel.

Select the "Load ISO/CUE" menu. The game files in the /yabause/games directory are displayed.

Select a game. Then, return to the main menu.

Select the "Start emulation".

Some games need to select the proper cartridge. So, you must select the proper cartridge before start.

Settings

The important settings are as follows.

Bios (With or Without):

Default: Without.
Some games work only with bios while the other some games freeze with bios.

Decline Number Timing Parameter (2-17):

Default: 15.
The yabause executes the process of displaying (BlankOUT process) one image per the decline number
The higher the number, the faster but some games are unstable (freezing) while another some games, which did not work in the previous yabauses, work only in the lower number (ex. 2-4) but slower.

SCSP Driver (SCSP1 or SCSP2):

Default: SCSP2.
SCSP1 is old scsp driver. Some games work only with SCSP2 driver.
However, the sound quality with SCSP2 seems to be lower than that with SCSP1.

Divide Number for Clock (1-9):

Default: 1.
For example, Rockman 8 (it seems to be called as Mega Man 8 in the other areas) works at the divide number for clock=7, but very very slow even if you set the Decline Number Timing = 17.

Video Driver (Software driver or Old software driver):

Default: Software driver.
New software driver is better rendering but slower while old software driver is faster but worse rendering.

Files Structure

/yabause/bios.bin (optional): bios file of saturn
  |     /yabause.xml (auto): setting file for global; load at first
  |
  |-----/carts/actionreplay.bin (optional)
  |           /bkram4M.bin (auto)
  |           /bkram8M.bin (auto)
  |           /bkram16M.bin (auto)
  |           /bkram32M.bin (auto)
  |           /[gameID]_ROM16M.bin (optional)
  |
  |-----/saves/bkram.bin (auto, one-backup mode): one internal back-up file
  |           /[gameID].bin (auto, each-backup mode): internal back-up file in each game
  |           /[gameID]_00?.yss (auto): state save file in each game
  |           /[game_nameC].xml (auto): setting file for each game; load when selecting game
  |
  |-----/games/[game_nameA].iso
  |           /[game_nameB].cue (with some files)

You can find the gameID on the label of game packages.

Cartridge List

Cartridge type	File name
None	""
Action Replay	"/yabause/carts/actionreplay.bin"
Backup 4MBits RAM	"/yabause/carts/bkram4M.bin"
Backup 8MBits RAM	"/yabause/carts/bkram8M.bin"
Backup 16MBits RAM	"/yabause/carts/bkram16M.bin"
Backup 32MBits RAM	"/yabause/carts/bkram32M.bin"
DRAM 8MBits	""
DRAM 32MBits	""
ROM 16MBits	"/yabause/carts/[gameID]_ROM16M.bin"
Japanese Modem	""

The above file names cannot be changed.
Tested cartridge types are only backup-RAMs and DRAMs.
8MBits = 1MBytes, 32MBits = 4MBytes; So, DRAM 32MBits is the extended 4MBytes RAM Cartridge.
The other types cannot be tested.
The file name of the internal backup ram is "/yabause/saves/bkram.bin" on one-backup mode or "/yabause/saves/[gameID].bin" on each-backup mode, though it is not cartridge.

Controls

GameCube Controller

Menu:

D-Pad or GameCube Control Stick - Move

A - Select menu item

In game

D-Pad or Analog - Move (Constant)

Y - A (Changeable)

B - B (Changeable)

A - C (Changeable)

X - X (Changeable)

C Control Stick (any direction) - Y (Changeable)

Z - Z (Changeable)

L - L Trigger (Changeable)

R - R Trigger (Changeable)

Start - Start (Changeable)

Start+Z - Quit (Constant)

Classic Controller

Menu:

D-Pad or Left Analog - Move

A - Select menu item

In game

D-Pad or Left Analog - Move (Constant)

Y - A (Changeable)

B - B (Changeable)

A - C (Changeable)

X - X (Changeable)

ZL - Y (Changeable)

ZR - Z (Changeable)

L - L Trigger (Changeable)

R - R Trigger (Changeable)

Plus - Start (Changeable)

Home - Quit (Constant)

Wiimote Horizontal

Menu:

D-Pad - Move

A or 2 - Select menu item

In game

D-Pad - Move (Constant)

A - A (Changeable)

1 - B (Changeable)

2 - C (Changeable)

Minus - X (Changeable)

B - Y (Changeable)

Plus - Start (Changeable)

Home - Quit (Constant)

Wiimote Vertical

In game:

Minus+1 Save state slot 1

Minus+2 - Save state slot 2

Plus+1 - Load state slot 1

Plus+2 - Load state slot 2

D-Pad Up - Toggle VDP2 NBG0 display

D-Pad Right - Toggle VDP2 NBG1 display

D-Pad Down - Toggle VDP2 NBG2 display

D-Pad Left - Toggle VDP2 NGB3 display

A - Toggle VDP2 RBG0 display

B - Toggle VDP1 display

1+2 - Toggle FPS display

You can save two states in each game.

When you cannot play normally because of display priority, try toggle buttons.

Screenshots

Media

Sega Saturn Emulation on Wii: Yabause Wii- 14 Games Demonstrated (ragread)

Known issues

Slow. However, because the auto-frameskip is active by default some games run at playable speed.
Not displaying some images (So, try to push any buttons on black screen).
Freezing.
Yabause wii was compiled by recent libogc without libogc/autdio.c. The audio.c (r4078) makes yabause wii freezed.

Changelog

Unofficial r2926 beta26 2012/06/07

Based on the original yabause r2926.
Support wiiflow mod plugin; autoloading with arguments.

Unofficial r2888 beta25 2012/05/03

Based on the original yabause r2888.
Some minor fixes and changes.

Unofficial r2858 beta24 2012/05/25

Compile with devkitPPC r25 and recent libogc (support new remote plus).
Based on the original yabause r2858 (including mainly improvements of VIDSOFT & SCSP drivers).
Branch software video driver to two drivers: old one and new one.
Some minor fixes and changes.

Unofficial r2649 beta23 2011/08/28

Adjust SDL audio driver for Wii.
Fix vdp1 clipping.
Show game filenames by outlined characters when the game has its setting.
Some minor fixes and changes.

Unofficial r2649 beta22 2011/08/13

Add timing parameters, divide number for clock and smpc other timing. ex., Rockman 8 (it seems to be called as Mega Man 8 in the other areas) works at the divide number for clock=7, but very very slow.
Add "Remove Setting File", "Reset Settings" menus.
Some minor fixes and changes.

Unofficial r2649 beta21 2011/07/30

Make SCSP1 (old one) and SCSP2 into plugins; can select SCSP1 or SCSP2.
Add saving setting mode for each game.
(Maybe) fix PAL monitor mode according to libogc.
Some minor fixes and changes.

Unofficial r2649 beta20 2011/07/24

Can adjust decline number (2-17): The higher the number, the faster but some games are unstable while another some games work only in the lower number (ex. 2-4) but slower.
Adjust for PAL monitor mode when libogc detects VI_PAL mode (but I cannot verify this forever).
Fix threading.
Some minor fixes and changes.

Unofficial r2649 beta19 2011/07/16

Change directory structure from old "/SSROMS" directory to each subdirectories under "/yabause" directory.
Add new internal backup ram saving mode: save in each game.
Activate threading scsp2 using mutex.
Avoid freezing in some vdp1 commands.
Some minor fixes and changes.

Unofficial r2649 beta18 2011/07/02

Base on the original yabause r2649 (cmake branches).
Compile with devkitPPC r23 and recent libogc except r4078 audio.c.
Use scsp2.c instead of scsp.c (some games works, but, sound quality seems to be lower).
Fix clip bug of vdp1 in vidsoft.c.
Some minor fixes and changes.

Unofficial r2604 beta17 2010/11/03

Compile with devkitPPC r22 (performance up).
Adjust smpc peripheral timing parameter (some games work), and add setting menu of the parameter.
Fix crash bug in menu.
Some minor fixes and changes.

Unofficial r2604 beta16 2010/10/16

Add special color setting menu (default on, off: a little faster, but lower compatibility).
Some minor fixes and changes.

. Unofficial r2604 beta15 2010/10/10

Revert a part of the previous optimizations because of bug.
Display FPS (default off).
Some minor fixes and changes.

Unofficial r2604 beta14 2010/10/01

Support saving settings.
Support configuring buttons.
Some optimizations (a little fast).
Scroll display of long file name.
Some minor fixes and changes.

Unofficial r2604 beta13 2010/09/24

Improve processing vdp1 (fix some imvisiblities and flickers of vdp1).
Fix path name of ROM 16M-bit cartridge (maybe affect KOF95 etc.).
Some minor fixes and changes.

Unofficial r2604 beta12 2010/09/18

Add some previous unhandled commands of vdp2.
Use optimization options of compiler (a little fast).
Use inline assemblies more in functions used in RBG0 and RBG1 (a little fast but not accurate).
Some minor fixes and changes.

Unofficial r2604 beta11 2010/09/11

Add "additive" special color calculation mode.
Fix color bug owing to endian.
Use inline assembler in the mulfixed-function (used in RBG0 and RBG1) for speed up (but a little..).
Some minor fixes and changes.

Unofficial r2604 beta10 2010/09/06

Change order of drawing vdp2 for special color calculation mode.

Unofficial r2604 beta9 2010/09/05

Add special color calculation mode (blend colors).
Thread audio and increase buffer.
Some minor fixes and changes.

Unofficial r2604 beta8 2010/08/28

Add more some previous unhandled commands of SH2 and memory accesses.
Fix color offset to avoid bluish image.
Some minor fixes and changes.

Unofficial r2604 beta7 2010/08/18

Based on the original yabause r2604.
Change mounting method of fat for stable mounting (retry three times).
Some minor fixes and changes.

Unofficial r2411 beta6 2010/08/15

Recompile for recent HBC1.0.8 and recenet libogc (I don't know using IOS58 for USB2).
Add some previous unhandled commands of SH2 (ex. Sega Rally Champ. works).
Some minor fixes and changes.

Unofficial r2411 beta5 2010/03/27

Fix user-clipping.
Add subsubmenu of selecting sound driver.
Some minor fixes and changes.

Unofficial r2411 beta4 2010/03/06

Add bios setting submenues (default is "without bios").
Fix variable type of the localX, localY taken from rr branch.
Some minor fixes and changes.

Unofficial r2411 beta3 2010/02/13

Avoid crash in scsp.
Fix clipping bug more.
Display vdp1 palette only mode.

Unofficial r2411 beta2 2010/01/23

Fix clipping bug in high-reso..
Support state save & load.
Sort game list alphabetically with case-insensitive.
Some minor fixes and changes.

Unofficial r2411 beta1 2009/12/26

Support USB storage.
Sort game list alphabetically.

Unofficial r2411 alpha10 2009/12/05

Use GX in converting resolution.
Fix pixel size of vdp1 on the games such as Virtua Fighter.

Unofficial r2411 alpha9 2009/11/06

Based on the original yabause r2411 .
Fix putting position of vdp1 in the games using high resolution modes.

Unofficial 0.9.10 alpha8 2009/11/02

Add submenu of setting cartridge.
Not compile high resolution version (highreso.dol) because of bugs.

Unofficial 0.9.10 alpha7 - Oct. 31, 2009/10/31

Can play repeatedly.
Fix displaying more.
High resolution version (highreso.dol).

Unofficial 0.9.10 alpha6 2009/10/29

Fix displaying, again (but, cannot test all TV-modes except NTSC-J).
Omit small black square in left-top corner.
Delete stopping DVD (because the latest HBC stops DVD).

Unofficial 0.9.10 alpha5 2009/10/25

Fix displaying.

Unofficial 0.9.10 alpha4 2009/10/24

Support GameCube Controller & stick of Classic Controller.
Improve displaying ..(but, maybe provisionally).

Unofficial 0.9.10 alpha3 2009/06/02

Based on the original Yabause 0.9.10.
Set DRAM32MBIT Cart.

Unofficial 0.9.9 alpha2 2009/02/04

Based on the original Yabause 0.9.9.
Can play without bios file.

Unofficial 0.9.8 alpha1 2009/01/10

Based on the original Yabause 0.9.8.
Submenu of games.
Stop the sound when you return to the main menu.
Set backup ram as "/SSROMS/bkram.bin".

Credits

Original developer of Yabause, Yabause Team.
Many developers of the libraries and systems tools such as libogc, etc.

External links

WiiBrew - https://wiibrew.org/wiki/Yabause_Wii