MAMEWorld Forums - EmuChat - Evil Night problems

>I'm using MAME .227 How do I know if the rom set is the same as the version of MAME I'm
> using?

If the rom set is out of date, rom specific error messages will appear when trying to run the game. If no rom related error messages appear, but a user still wants to verify romset.

rom management programs like Clrmamepro would be simplest way (albeit a learning curve involved) to go if not wanting to dive into details of rom name issues or CRC issues.

https://mamedev.emulab.it/clrmamepro/

For those users that are into wanting to examine the details like a statistician, the a web site like http://adb.arcadeitalia.net/lista_mame.php

would be the way to go. Type in rom name and then do specific searches such as specific file names and CRC values and SHA1 values.

http://adb.arcadeitalia.net/dettaglio_mame.php?game_name=evilngt&search_id=2

For users that have literally spent mucho amount of time with looking throughout source code of MAME and want to tackle the rom set issue 'commando' style (pants no underwear or wearing underwear but no pants)

the user can search for source code file

src/mame/drivers/konamim2.cpp

and then do a line search within the roms section and examine name, CRC, SHA1 sections to see any specific differences.

ROM_START( evilngt )

ROM_REGION64_BE( 0x200000, "boot", 0 )
ROM_LOAD16_WORD( "636a01.8q", 0x000000, 0x200000, CRC(7b1dc738)

ROM_REGION( 0x2000, "m48t58", 0 ) /* timekeeper SRAM */
ROM_LOAD( "m48t58y.9n", 0x000000, 0x002000, CRC(e887ca1f)

DISK_REGION( "cdrom" )
DISK_IMAGE_READONLY( "810uba02",

GAME( 1998, evilngt, 0, ...."Konami", "Evil Night (ver UBA)", MACHINE_IMPERFECT_TIMING )

GAME( 1998, evilngte, evilngt, ..."Konami", "Evil Night (ver EAA)", MACHINE_NOT_WORKING | MACHINE_IMPERFECT_TIMING )
// TODO: Add CHD

GAME( 1998, hellngt, evilngt, .... "Konami", "Hell Night (ver EAA)", MACHINE_IMPERFECT_TIMING )

It depends which method user is most comfortable with.

As already mentioned, the clone rom set evilngte is missing the specific CD Rom
that is used to run the game. Several of the games have regional rom differences hence the parent rom name and the clone rom name. Besides the differences with the rom chips, the extraneous data storage hardware (CDs, Hard disks) might also have differences.

In some specific cases, contributors might only have the pcb, but no CD or some might be fortunate enough to have all of the hardware on hand (pcb, CD or hard disk etc.)