Google doesn't find it neither , maybe it got lost in the 5 years, would be cool to reverse engineer msx1 games.
What do you mean by 'it' ? The tileviewer of openMSX? Google can't find it probably because no any page of the online openMSX documentation mentions and explains the openMSX scripts. This documentation is uncomplete.
Nice script! didn't know it existed!!! To run it, just make sure it's copied in the scripts folder of your OpenMSX, and then when running OpenMSX, open the console, and type "tileviewer::showall" (basically the name of the "namespace" defined in the script then "::" and then the name of the function you want to call.
You must have the file _tileviewer.tcl in the folder \share\scripts
Launch a msx 1 game and in the console (F10)
In my version of the script, i must execute the command
tileviewer::view_all_tiles
you can edit the tcl file with notepad to find all procs
