This page describes Grrl, Ideamagnate
's hack of the Gens emulator to provide support for rerecording and RAM search capabilities in Linux without the need for a win32 API emulation layer such as Wine.
As it stands, Grrl is a minimal effort project to make Gens on Linux usable for TASing by providing some basic features
. It is lacking in some of the features found in Upthorn's win32 build. The main reason for this is that Jyzero's original TAS additions made the Gens source win32-specific[1
] and nobody has taken the time to make the code cross-platform again.
The most striking difference is the absence of a GUI. This results in much faster navigation and simplified source, but makes the program more difficult to use until a user learns the commands he needs.
Source Code and Binaries
Grrl continues to be available under the terms of the GPL. Version 1 is available here
. To build it you'll need to install the libreadline, libsdl and x11 header files. In Debian, the packages are libsdl1.2-dev, libreadline5-dev and libx11-dev. Other required packages include nasm.
The Subversion repository has the most recent version of the code and is generally updated whenever a significant change is made. Anonymous checkout can be done by running the following command
svn co svn://email@example.com/repos/gens_grrl/trunk/gens_linux
A binary-only tarball of svn build 61 (the latest as of 11/9/2007) is available here
Future versions may require libconfig
, although it will be statically linked in any distributed binaries. If you wish to compile Grrl once libconfig is a requirement, do the following to install, in addition to the typical ./configure && make && make install
. Make sure that the directory where libconfig.so is installed (/usr/local/lib by default) is in /etc/ld.so.conf or a file included by ld.so.conf. Run ldconfig
so the dynamic linker can find libconfig and you should be able to build Grrl.
svn (revision 61)
- can toggle layers (default cs-[0-5])
- can adjust volume from within Gens (default [/] and [*]), thanks to plusminus
- robot support with IPC synchronization (requires programming robot code in C/C++)
- most of the important (re)recording features ported from Nitsuja and Jyzero's code
- can restore/save while playing movies
- bulletproof rerecording
- read-only mode (enabled by default)
- configurable automatic backups when recording over a movie
- frame counter and input display
- up+down and left+right
- slow mode (down to 3%, less isn't meaningful)
- fast-forward with tab (mutes sound so the game actually runs faster instead of just choppier)
- can choose states with next/prev or select/load/save w/ 0-9
- ram search and onscreen display (won't work with 32x or SegaCD for now, see grrl_info for details)
- can record a movie with another gmv as a template
- can record from a state
- can play from a state from the cli
- window automatically raises/lowers when Gens expects command-line input (really handy for ram searches)
- all buttons configurable via human-editable config file (see grrl_info)
- config file not overwritten on exit (can be saved with c-s)
- 32x support continues to work (not a new feature, but I didn't break it)
Having a win32-only TAS-friendly version of Gens is far better than having none at all. Having a cross-platform version would be even better.
Grrl last edited by sp00ky
on 2009-06-23 20:26:42Page info and history | Latest diff | List referrers | View Source