the original announcement is at the bottom of the thread there
or the direct download link
all the documentation is in german only at the moment, but it should be still useable - the download archive includes
vhdl files example toplevel and ucd for Digilent S3 starterkit assembler (with C sources) simulator (in java) script to use data2mem for rom initialization documentation
there is no ISE project, so new project must be made, then just add all vhdl files. on my test build the UCF caused errors on timing constraints and bram loc constrains, after removing them the build was succesful.
for succesful data2mem script merging the UCF-BMM must match or the data2mem will not be able to init the bitstream correctly so that may have to be fixed manually, otherwise is the project ready to go for S3 starterkit.
and size - just for testing I synthesized for S3-50: used slices 43% not bad for an 16 bit processor.