ok, thanks. The binarys are confusing though
Oh well, Im sure I'll figure it out.
The source files are confusing. The binaries are set to go.
Assuming MAME 0.79 is installed in C:\MAME and you know the new games and have the new ROMS, (and know command prompt usage), it's this simple:
Create new folder C:\MAME083\
Download MAME 083 binary and extract to C:\MAME083\
Put new ROMS in C:\MAME083\ROMS
At command prompt, type
cd\
cd mame083
mame -cc
Open C:\MAME083\mame.ini and edit file pointers to point to C:\MAME\ whatever, match other settings to C:\MAME\mame.ini.
Setup your frontend and play new games.