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Re: Ultima & Mockingboards on each of the Apples



"sicklittlemonkey" <Nick.Westgate@gmail.com> wrote in 
1135827672.905464.162750@o13g2000cwo.googlegroups.com:">news:1135827672.905464.162750@o13g2000cwo.googlegroups.com:

> This is definitely both bad and weird. How did both
> apps end up with the same bad ROM.
> 
> MESS ROMs are supposed to be obtained only from dumping a known good
> original ROM. I will log this as a bug in MESS.

Well, they're supposed to be, but a lot of the ROMs in MESS (especially 
the ones that have been in there for years like the Apple II variants) 
are just the usual versions floating around the Internet for other 
emulators, perhaps divided up differently. In this case MESS most likely 
just took the ROMs from AppleWin.

For a lot of computer systems, even common ones like  the Apple II, real 
proper dumps from original chips just plain don't exist online, and 
MESSDEV doesn't have the same kind of "dumping project" infrastructure 
that MAMEDEV does to get ahold of physical hardware for dumping. For 
example, much of what's in MESS has been read from running machines using 
BASIC rather than using an EPROM reader because most people don't have 
that kind of equipment. Depending on the system, the two processes may 
not result in identical dumps.

Since this is probably as good a place to ask as any, if any folks here 
can make or have access to proper dumps that are more correct than what's 
in MESS, the MESS maintainer Nathan Woods would be very interested to 
hear about it (his contact information is at 
http://www.mess.org/contacts.html, or you can file a bug at 
http://bugzilla.mess.org/). Alternate revisions MESS doesn't currently 
support are always welcome too. The issue raised in this particular 
thread has already been addressed thanks to slicklittlemonkey, but I'm 
sure there are other problems out there.

-Justin

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