Hi all,
I was trying to override the artwork so I didn't have to compile every time I made a change, but -override_artwork didn't seem to be working.
So I analyzed the code and what it's looking for is:
artwork/<name>/<name>.lay
So for example:
-override_artwork lchicken
will look in artwork/lchicken/lchicken.lay
(or even a zipfile at artwork/lchicken.zip with lchicken.lay inside.)
The command line options page doesn't give much info on the subject.
-override_artwork
Specifies override artwork for external artwork and internal driver layout.
Example:
mame galaga -override_artwork puckman
Now I can make changes and see them immediately on launching mame. Much faster than compiling.