8 replies to this topic

[LazySteve]

I just finished repairing my Williams Time Warp. One thing I needed was a sound EPROM so I burned one using the ROM image I downloaded from here, and it works fine.

While I was playing with the ROM burner I decided to read the "real life" game and flipper ROMs and I noticed the binaries are way different from the ones in the ROM set I downloaded from here.

So, being a bit curious about that, I burned some EPROMs from the downloaded images and tried them in the machine - they don't work !?

I understood there was only one ROM set released for TW (apart from the /10 scoring flipper 2 ROM) and I thought the PinMAME ones were supposed to be the same as the original, so does anyone know how come I seem to have different ones ?

[TheMcD]

http://ipdb.org/machine.cgi?id=2568

See how IPDB differentiates between "Game ROM" and "PinMAME ROM"? There most definitely is a difference. We only have PinMAME ROMs because why the hell would we need the other ones - this isn't a site for real pinball resources.

The McD

[007]

http://ipdb.org/machine.cgi?id=2568

See how IPDB differentiates between "Game ROM" and "PinMAME ROM"? There most definitely is a difference. We only have PinMAME ROMs because why the hell would we need the other ones - this isn't a site for real pinball resources.

The McD

Take it easy, tiger.

[TheMcD]

There is only hostility if you mean to read it into that - I did not mean to look aggressive with that post. It really just is that simple a matter - otherwise we wouldn't have bothered creating the distinction of "PinMAME ROMs" in the first place.

The McD

[destruk]

There is no difference between a pinmame romset and the real machine romset. The only thing we do is add 00 bytes to the code to pad it to the full chip size. So if the game code is 1020 bytes, and the chip to be programmed is 1024 bytes, we add four bytes of 00 to fill out the rom space.
In a real machine it will work just the same as the original chip.

If your flipper roms are different in your machine, Gerrit would like to see them to compare - perhaps the game rom /.10 set requires different flipper roms than the ones in your machine as those do have different code in them. All we would need to start is a crc32 checksum of the flipper rom files to do a search through the code to find a match.

as an aside, I wish ipdb would simply remove all 'pinmame roms' from their site as they cause issues like this - I haven't seen a case yet where our pinmame roms didn't work on a real machine.

[Osprey101]

There is no difference between a pinmame romset and the real machine romset. The only thing we do is add 00 bytes to the code to pad it to the full chip size. So if the game code is 1020 bytes, and the chip to be programmed is 1024 bytes, we add four bytes of 00 to fill out the rom space.
In a real machine it will work just the same as the original chip.

If your flipper roms are different in your machine, Gerrit would like to see them to compare - perhaps the game rom /.10 set requires different flipper roms than the ones in your machine as those do have different code in them. All we would need to start is a crc32 checksum of the flipper rom files to do a search through the code to find a match.

as an aside, I wish ipdb would simply remove all 'pinmame roms' from their site as they cause issues like this - I haven't seen a case yet where our pinmame roms didn't work on a real machine.

Interesting info Destruk. Thanks for posting this.

[TAB]

...but for example - the copyright chip on Gottlieb's boards. If this is also down you get no support.
When the hole board...
We have problems with Mario

[Cat]

I have pinmame roms in my earthshaker pinball they are PR4 version works fine never says bitchin only in test mode

[Joe]

I have pinmame roms in my earthshaker pinball they are PR4 version works fine never says bitchin only in test mode

family mode on?