Opus Challenger 3-in-1

MAME: 0.276 - Released: 2025-03-30T02:02:50 - Machines: 48041 - rom: 359407 - disk: 1371 - Lists: 719 - Software: 139167 - rom: 235587 - disk: 11327

machine AO ? name sourcefile sampleof isbios isdevice ismechanical runnable description year manufacturer romof cloneof MachineGenreId bbc_opus3 devices/bus/bbc/1mhzbus/opus3.cpp   no yes no no Opus Challenger 3-in-1         System / Device

rom name size crc sha1 region offset status optional merge bios chal100.rom 16384 740a8335 f3c75c21bcd7d4a4dfff922fd287230dcdb91d0e exp_rom 0 good no   ch100 chal101.rom 16384 2f64503d 37ee3f20bed50555720703b279f62aab0ed28922 exp_rom 0 good no   ch101 chal103.rom 16384 98367cf4 eca3631aa420691f96b72bfdf2e9c2b613e1bf33 exp_rom 0 good no   ch103

biosset name description default ch100 Challenger 1.00 no ch101 Challenger 1.01 no ch103 Challenger 1.03 yes

device_ref name wd1770 floppy_connector floppy_connector ram

slot name :wd1770:0 :wd1770:1

Try MAME-AO. Easiest way to use MAME. Automatically download and place all required files on the fly.