Dega (rerecording)

This is an extended version of the Sega Master System emulator Dega designed to provide rerecording and other features useful for creating tool assisted speedruns. This version will build on *NIX as well as Windows thanks to the work of Ulrich Hecht.

Important note

Some Windows XP SP2 users have reported crashes when playing back multiple movie files. This is a known Windows bug which is documented in KB article 909486. The hotfix is not available to download from their website, but I have made it available here.

Version 1.16pre1 (source | Windows binary [Doze core] | Windows binary [MAME core])

New features:

Movie file format altered to record whether this is a Game Gear game
Now uses ROM file header rather than file extension to determine game type
Added optional new portable Z80 core from Final Burn Alpha (originally MAME)
Fixed flickering issue with SDL version affecting games which change the palette during the frame
degavi ported to Windows using VfW

Bug fixes:

Fixed a number of emulation bugs affecting a variety of games
Windows: act more friendly to the CPU by not busy looping

Version 1.15 (source | Windows binary)

New features:

Saving/loading of memory watch list (courtesy Alden Sliter)

Bug fixes:

Fixed emulation bugs affecting Rygar and Golden Axe Warrior

Version 1.14a (source | Windows binary)

Bug fixes:

Overlays now work on Windows Vista

Version 1.14 (source | Windows binary)

New features:

User interface improvements
Python scripting interface
Memory viewer/trainer
Support for player 2 input
Fixed size scaling options: 1x/2x/3x/4x

Version 1.13a (source | Windows binary)

Bug fixes:

Fixed emulation bug for certain games which would incorrectly determine the region

Version 1.13 (source | Windows binary)

New features:

Bulletproof rerecording with read-only mode
AVI encoding from a movie file (*NIX only)
Hotkey configuration (Windows only)
Information display (frame counter and button input)
Slow motion/fast forward
Save state slots (Windows only)
Auto-fire/auto-hold (Windows only)

Bug fixes:

Frame advance now advances 1 frame rather than 2

Work in progress

Work in progress releases are made available occasionally here. You may also retrieve the current Git repository by issuing the following command:

git clone git://git.pcc.me.uk/~peter/dega.git

You can also browse the Git repository.

Note that the current version of Dega uses two libraries -- libvfw and libmencoder -- to support the movie encoder. To build Dega the source code for these libraries must be found in the libvfw and libmencoder directories under the dega directory. The source code for these libraries is maintained using git and therefore the code may be fetched by issuing the following commands from within the dega directory:

git clone git://git.pcc.me.uk/~peter/libvfw.git
git clone git://git.pcc.me.uk/~peter/libmencoder.git

You can also browse the Git repository for libvfw and libmencoder.

Donations

If you appreciate the work being done on this project please consider donating.

Donate via Paypal

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Contact

Any issues please email me at