I have to assume you are referring to changes in the CPS2 driver and games such as (aka Street Fighter Alpha, Megaman 2, Marvel Vs. Capcom, etc)? This happened in http://mamedev.org/releases/whatsnew_0178.txtLancerDL wrote:After running mame64 0176 for a while, I recently updated to 0180 and noticed a few ROMs that used to work were now missing files. When using "mame64 -listroms <rom>" a new entry was present relative to 0176. Namely <rom>.key, where <rom> is the name of that particular <rom>.zip file.
This addition was not present with all ROMs, so my questions are:
1) What is it? It's only about 20 bytes.
2) Where does this requirement come from? Ie: What causes it to be needed in some ROMs and not others?
3) Does a new dump need to be done for the ROMs affected?
Code: Select all
-cps2: Use keys that can be programmed onto a CPS2 motherboard [smf, Eduardo Cruz, Andreas Naive]