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2600 Rom Comparisions and Dumps


Omegamatrix

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Alright, so I looked at the files Buzbard sent me. My first impressions were how odd it was that all the files seemed to be named without any commonality. People are creatures of habit. It's strange to see one file INALLCAPS.BIN, and then have the next Mostlylowercase.bin, or only_use_an_underscore_on_this_rom.bin, and then hvewrdchoppd.bin.

 

 

It seemed like that the roms were named by different people simply because there was no rhyme or reason from one rom to the next. Or maybe the roms were from multiple sources? I started to wonder if Atari had just grabbed these roms off of the internet instead of using their own. So, I checked a very old source on AtariAge for roms:

 

http://www.atariage.com/system_items.html?SystemID=2600&ItemTypeID=ROM

 

At the top of the page are 5 zip files containing the AA archive. Using Clonespy I was able to find the roms off of AA that were 100% matches to the Atari Anthology. I was pleasantly surprised to see most of the roms (49 to be exact) had the exact same weird spellings identical to the roms off of AA.

 

So what I am saying here is that not only does the rom 100% match bit for bit, but the exact spelling on these roms also matched. Here are all the roms that matched by both Clonespy and spelling (note Basic.bin is Basic Programming):

 

3d_tic.bin

ADVNTURE.BIN

ASTEROID.BIN

Basic.bin

Basmath.bin

Batlzone.bin

Black_j.bin

Bowling.bin

Breakout.bin

Canyonb.bin

Casino.bin

Circatri.bin

Codebrk.bin

Concentr.bin

Cryscast.bin

Demondim.bin

Dodge_em.bin

Doubdunk.bin

Dsrtfalc.bin

Flagcap.bin

Football.bin

Golf.bin

Gravitar.bin

Haunthse.bin

Homerun.bin

Human_cb.bin

MATH_GPX.BIN

MAZECRZ.BIN

MILLIPED.BIN

MIN_GOLF.BIN

MISSCOMM.BIN

NIGHTDRV.BIN

Ofthwall.bin

Outlaw.bin

Quadrun.bin

Radarlok.bin

Rstennis.bin

Rs_baseb.bin

Rs_footb.bin

Rs_volly.bin

Slotrace.bin

SPACEWAR.BIN

SQ_EARTH.BIN

SQ_FIRE.BIN

SQ_WATER.BIN

STEPLCHS.BIN

Vidpin.bin

Vid_olym.bin

Yar_rev.bin

 

 

The odds that all of these roms (together) could have been named exactly this was by both Atari and AA are not like winning the lottery. It's more like winning the lottery every day of the week for 30 years. Time for a new post though, as this one is getting kind of long!

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Now I'm not saying the roms come directly from AA. Once roms appear on the internet they get copied to a few hundred different websites. It's also possible the AA got most of there roms off of the internet too. Al would probably remember... The real question I'm trying to answer here is did Atari get these roms off the internet for the Atari Anthology?

 

 

Fortunately, the date info was still attached to the rom in the AA zip files. Here is that list once again by date:

 

08/26/1997  10:13 AM     ADVNTURE.BIN
08/26/1997  10:13 AM     ASTEROID.BIN
08/26/1997  10:14 AM     Basic.bin
08/26/1997  10:14 AM     Basmath.bin
08/26/1997  10:14 AM     Batlzone.bin
08/26/1997  10:14 AM     Black_j.bin
08/26/1997  10:14 AM     Bowling.bin
08/26/1997  10:14 AM     Breakout.bin
08/26/1997  10:14 AM     Canyonb.bin
08/26/1997  10:14 AM     Casino.bin
08/26/1997  10:14 AM     Circatri.bin
08/26/1997  10:14 AM     Codebrk.bin
08/26/1997  10:14 AM     Concentr.bin
08/26/1997  10:14 AM     Cryscast.bin
08/26/1997  10:14 AM     Demondim.bin
08/26/1997  10:14 AM     Dodge_em.bin
08/26/1997  10:14 AM     Doubdunk.bin
08/26/1997  10:14 AM     Dsrtfalc.bin
08/26/1997  10:15 AM     Flagcap.bin
08/26/1997  10:15 AM     Football.bin
08/26/1997  10:15 AM     Golf.bin
08/26/1997  10:15 AM     Gravitar.bin
08/26/1997  10:15 AM     Haunthse.bin
08/26/1997  10:15 AM     Homerun.bin
08/26/1997  10:15 AM     Human_cb.bin
08/26/1997  10:16 AM     MATH_GPX.BIN
08/26/1997  10:16 AM     MAZECRZ.BIN
08/26/1997  10:16 AM     MILLIPED.BIN
08/26/1997  10:16 AM     MIN_GOLF.BIN
08/26/1997  10:16 AM     MISSCOMM.BIN
08/26/1997  10:16 AM     NIGHTDRV.BIN
08/26/1997  10:17 AM     Ofthwall.bin
08/26/1997  10:17 AM     Outlaw.bin
08/26/1997  10:18 AM     Radarlok.bin
08/26/1997  10:18 AM     Rstennis.bin
08/26/1997  10:18 AM     Rs_baseb.bin
08/26/1997  10:18 AM     Rs_footb.bin
08/26/1997  10:18 AM     Rs_volly.bin
08/26/1997  10:19 AM     3d_tic.bin
08/26/1997  10:19 AM     Slotrace.bin
08/26/1997  10:19 AM     SPACEWAR.BIN
08/26/1997  10:19 AM     SQ_EARTH.BIN
08/26/1997  10:19 AM     SQ_FIRE.BIN
08/26/1997  10:19 AM     SQ_WATER.BIN
08/26/1997  10:19 AM     STEPLCHS.BIN
08/26/1997  10:19 AM     Vidpin.bin
08/26/1997  10:19 AM     Vid_olym.bin
08/26/1997  10:19 AM     Yar_rev.bin
02/18/1999  10:05 PM     Quadrun.bin

 

These dumps must be at least as old as 1997 (excluding Quadrun). This is much older than the Atari Anthology which was 2003 or 2004 according to Wikipedia. I know of no other Atari release before this. Since the AA roms also have the exact spelling as the Atari Anthology, I feel this is very strong evidence that Atari got these games somewhere off of the internet. I can't say for sure if it was AA they got them from, but I can say most of these rom dumps are at least as old as 1997 (excluding Quadrun).

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I just had another random thought in my head. I checked Eckhard's tool section, and looked at the .pdf for the 7800 dumper (the first release). In the section about modifying the 7800 for an eprom, there is one particular sentence "Otherwise you should follow the directions published by Bruce Tomlin in May of 1996". So these cart dumpers have been around for a while, and the 1997 rom dumps could have been done by one (instead of using an eprom reader). Now the question is what operating system would you use in 1997? Well if you are a windows guy it wouldn't be Windows 98, as that was "released to manufacturing on May 15, 1998 and to retail on June 25, 1998" according to Wikipedia. I feel kind of dirty quoting Wikipedia as factual information, but it does seem like a reasonable date.

 

 

The entire reason I brought this up was I was wondering if an OS defaults to a certain date after an install. Specifically, would Windows 98 default to 08/26/1997 or earlier? Probably not as that date is about a year earlier than Windows 98 release. However, if I took a Windows 95 disc and installed it today what year would it default to? I would probably just be using that computer to dump roms on (as it had the necessary 25 pin parallel port), and I might be lazy and not bother to reset the date. So... you could get roms that were dated much earlier then when they were actually dumped.

 

 

That being said, lets look at the time between dumps. From Basic Programming to Double Dunk there are 16 roms done at 10:14 AM. Now that works out to dumping a rom every 3.75 seconds. I know Al is a fast guy but there is no way he could have been haulin' ass that quick!! If you've ever dumped a game you would know it takes ~ 2 seconds or so just to read a 4K rom. That leaves you 1.75 seconds to plug the cartridge in, power on the 7800, hit the reset button, type the command line, turn the power off, and remove the cartridge. It's physically impossible.

 

 

So the dates stuck to the file must have been from when they were copied over to a computer somehow. For example, all the roms I got from Buzbard had the current date (from 2010) and not the 2005 date. In this case it seems more likely that these roms were genuinely done a long time ago. We just can never be 100% of when, even by dates.

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Enough of the conspiracy theories, I don't want to sound as nutty as Homer. :P Let's look at some roms!!

 

 

I'll start with the one marked SOUND.BIN. Here is the complete disassembly and bin:

 

SOUND.zip

 

This is an incredibly small game. In fact it's not a game at all, but rather a test rom. If you play the bin you will here a beep, followed by a pause, followed by a sound (that changes), followed by a pause, and then it repeats. Its clear its function is to test audio. Why it's on the Atari Anthology I have no idea. I've never heard of this rom from anywhere else. I have no way on knowing if it's old or new. Perhaps though it was written by the Anthology guys to test some real hardware? Ideally I'm thinking they wanted to see how well the emulation of the 2600 worked on the Xbox, etc... and this rom was used to compare the sound quality to a 2600. There was also a "colours" rom which I will talk about later.

 

 

The interesting points of this rom are that it doesn't bother with clearing or setting any graphics. It also never syncs up the TV. It never cleans any of the ram or TIA registers. It purely only cares about audio, which leads me to believe it is a test rom. The length of it looks like it took about 10 mins to write. It's nothing elaborate.

 

 

It has a real oddity in that it checks the P1 difficulty switch (that's the one on the right side, as I go P0 and then P1). So if that switch is in the novice/amateur position at startup the program will wait for you to press it before it starts making sounds. Moving the switch after the sounds begins has no effect.

 

 

It's be interseting to see what this rom does on real hardware as all of the TIA registers are in unknown states. :lol:

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Next up is the bin marked "COLOURS.BIN". Odd that it is spelled "Colours" and not "Colors". Very non-American!! Well, truth be told I usually spell the word as "color", myself, and I'm a Canuck. :lol: But I sure the Hell don't spell "axe" as "ax". That's just wrong. :x

 

 

COLOURS.zip

 

Now just like the sounds rom, this is incredibly short. It also never clears any ram or TIA registers. In fact it's only purpose is to display some changing shapes and colors. It has a rock solid 262 lines... Seems to be for testing color on NTSC TV's.

 

 

Again I wonder what would happen on a real 2600 when the TIA registers are all random. You might turn this program on and experience some full blown annoying sound, for example. It would completely depend on what state the registers are in upon powerup. It is also possible you would get garbage on the screen, as the GRPx registers are not cleared, and the missiles and ball could be enabled, all sorts of stuff! In this regard I wish Stella would put all the registers into a random state at power up... but maybe some things are actually set into known state on an Atari at power-up that I just don't know about.

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Again I wonder what would happen on a real 2600 when the TIA registers are all random. You might turn this program on and experience some full blown annoying sound, for example. It would completely depend on what state the registers are in upon powerup. It is also possible you would get garbage on the screen, as the GRPx registers are not cleared, and the missiles and ball could be enabled, all sorts of stuff! In this regard I wish Stella would put all the registers into a random state at power up... but maybe some things are actually set into known state on an Atari at power-up that I just don't know about.

It's very easy to add this to Stella; I just need to be sure that this is the actual behaviour of a real system. Randomization is already being done for RAM. but not for the CPU or TIA (it seems to always initialize to 0 in those latter cases). In fact, even the 'frying' feature only modifies ZP-RAM. Perhaps it should be extended to randomize the CPU and TIA as well. In any event, it all comes down to testing on real hardware to confirm what really happens.

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Next up is the bin marked "COLOURS.BIN". Odd that it is spelled "Colours" and not "Colors". Very non-American!! Well, truth be told I usually spell the word as "color", myself, and I'm a Canuck. :lol: But I sure the Hell don't spell "axe" as "ax". That's just wrong. :x

 

 

COLOURS.zip

 

Now just like the sounds rom, this is incredibly short. It also never clears any ram or TIA registers. In fact it's only purpose is to display some changing shapes and colors. It has a rock solid 262 lines... Seems to be for testing color on NTSC TV's.

 

 

Again I wonder what would happen on a real 2600 when the TIA registers are all random. You might turn this program on and experience some full blown annoying sound, for example. It would completely depend on what state the registers are in upon powerup. It is also possible you would get garbage on the screen, as the GRPx registers are not cleared, and the missiles and ball could be enabled, all sorts of stuff! In this regard I wish Stella would put all the registers into a random state at power up... but maybe some things are actually set into known state on an Atari at power-up that I just don't know about.

Is that bin from my Colors prototype? http://www.atariprotos.com/2600/software/colors/colors.htm

 

Oddly the proto says PAL on it, but IIRC it was an NTSC 'game'.

 

Tempest

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Next up is the bin marked "COLOURS.BIN". Odd that it is spelled "Colours" and not "Colors". Very non-American!! Well, truth be told I usually spell the word as "color", myself, and I'm a Canuck. :lol: But I sure the Hell don't spell "axe" as "ax". That's just wrong. :x

I suppose the colours and sound binaries were done by the emulator author to help sample the VCS palette and all the different sounds a VCS can do. IIRC Atari's VCS emulator was done by Jeff Vavasour who is from Canada. That would explain the spelling of "colours". Jeff is a member here, so it's possible the ROMs are from AtariAge.

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That "first" collection of 2600 dumps existed and was traded around at least as early as 1995. I created a basic cart dumper using a the parallel port and a simple counter/latch under DOS and started dumping my collection around that time to play them in the first "Action Pack for Windows 95". I found you could make them 16k and save them over the files it was looking for.

 

Soon after that, someone sent me a zip file with all of those early dumps with that naming. I didn't know anything about bank switching at the time, so I never did extend my tools or dumper (or SRAM cart) to handle that.

 

This brings me way back to the early days of emulation. Dave Spicer and that first arcade emulators. Fun times- I even wrote a Centipede/Millipede emulator back before MAME existed. :)

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Hey Pete!

 

 

Good to see you around. I haven't talked to you since we had that topic on NTSC games that didn't have the right amount of scanlines. That was a long time ago now!

 

 

It's good that you remember this. It adds a lot of credence to Atari grabbing their roms off of the net.

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That "first" collection of 2600 dumps existed and was traded around at least as early as 1995. I created a basic cart dumper using a the parallel port and a simple counter/latch under DOS and started dumping my collection around that time to play them in the first "Action Pack for Windows 95". I found you could make them 16k and save them over the files it was looking for.

 

Soon after that, someone sent me a zip file with all of those early dumps with that naming. I didn't know anything about bank switching at the time, so I never did extend my tools or dumper (or SRAM cart) to handle that.

 

This brings me way back to the early days of emulation. Dave Spicer and that first arcade emulators. Fun times- I even wrote a Centipede/Millipede emulator back before MAME existed. :)

 

I think I may have seen that Centipede/Millipede emulator, I do remember a Gauntlet emulator long before MAME was around.

The early days of emulation were definitely kool, you could impress your friends by actually playing arcade games on your PC.

 

However, if I took a Windows 95 disc and installed it today what year would it default to?

 

I just installed Win'95 using "Virtual PC", and the majority of files are dated 8/24/96.

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I took a look at Combat on the Atari Anthology. There are 2 versions on the disc, both are hacks.

 

Combat.zip

 

The first one is essentially the same Combat. It is 2K rom. The differences are mostly caused by the origin being switched from $F000 to $F000. The TIA read baseline has also been switched from $30 to $00. To make these changes you need to disassemble the rom... Not completely disassemble, just using distella with a simple .cfg file would be enough.

 

The oddity is one SWCHB has been changed to a mirror. SWHCB is called in 5 places, but only 1 place uses this mirror. It still takes the same amount of cycles, so changing it seems redundant. Other then that the reset vector still retains its original origin of $F000, and not $1000. I have seen this in lots of hacks from different pirate companies.

 

 

 

 

The second rom sees Combat expanded to 16K. The last bank is not used except to switch back to Bank 0 (if you start up in Bank 3). This rom will work if split into 4K chunks (that is the first 4k chunk will work...), but it does not do everything the 16K rom does, and it really is meant to be a 16K rom.

 

 

The 16K rom is a hack that lets the second tank follow you, and shoot when it sees you. Pretty cool. Combat was a 2 player only game, but now you can play against the computer. It doesn't seem like a complete hack as the digits are screwed up at the top of the screen. The playfield has a new configuration, and there is no screen with the airplane warfare.

 

 

I seem to remember somebody making a hack like this. I can't remember who or when though. Maybe one of youse people do? It is probably a preliminary version (i.e. the name ends with 01). Or maybe that is for the year 2001? Anyhow at first I thought "tai01.bin" was a Oriental name attached to the rom. I thought who the heck is Tai? Then I thought about it more, and given the nature of the hack it is likely the "ai" stands for Artificial Intelligence. The complete abbreviation might be something like Trackmode Artificial Intelligence. Anyhow pretty cool hack even though it's not done. I'm 99.9% sure this is not old era as I do remember someone doing something like this at some point. I just don't remember exactly when, where, or who.

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I just installed Win'95 using "Virtual PC", and the majority of files are dated 8/24/96.

 

 

Good to know! The year seems a bit strange, as looking at Wiki again it says the release date for Windows 95 is Aug 24, 1995. The day an month are bang on though. What's also strange is that the majority of in the rom list I posted are 8/26/97. They are different by 1 year, but the day is pretty close. I'm not thinking to deeply into this... I just found it strange that the days were really close in all 3 cases.

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I seem to remember somebody making a hack like this. I can't remember who or when though. Maybe one of youse people do? It is probably a preliminary version (i.e. the name ends with 01). Or maybe that is for the year 2001? Anyhow at first I thought "tai01.bin" was a Oriental name attached to the rom. I thought who the heck is Tai? Then I thought about it more, and given the nature of the hack it is likely the "ai" stands for Artificial Intelligence. The complete abbreviation might be something like Trackmode Artificial Intelligence. Anyhow pretty cool hack even though it's not done. I'm 99.9% sure this is not old era as I do remember someone doing something like this at some point. I just don't remember exactly when, where, or who.

 

tai probably means Tank AI. This must be an earlier version of Zach Matley's hack:

 

Combat - Tank AI (Combat Hack) (2003) (Zach Matley) (4K).bin

 

Interestingly, I also found a 16K version on my HD.

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SUPERBRK.BIN (Super Breakout) matches:

 

Super Breakout (Paddle) (1982 - 1981) (Atari, Carol Shaw, Nick 'Sandy Maiwald' Turner - Sears) (CX2608 - 49-75165) [a].bin

 

From Rom's V5 collection. It is a valid rom. More was done on it by Nukey here. I should point out that [a] version Nukey is talking about is now the ~ version in Rom's current collection.

 

And a few more notes:

- Asteroids: The rom used is the no-copyright version

- Dodge 'em: The version used was the fixed version

- Swordquest Earthworld: the rom on the Atari Anthology only has differences in the hotspots ($00 vs $FF). Nothing too special.

 

Just 3 more roms to go. Gravitar, Quadrun, and Tempest.

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tai probably means Tank AI. This must be an earlier version of Zach Matley's hack:

 

Combat - Tank AI (Combat Hack) (2003) (Zach Matley) (4K).bin

 

Interestingly, I also found a 16K version on my HD.

You found it, Wickey!! This one is now put to rest. :) Also, I wonder if Zach knows a version of his game is on there? :ponder:

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The strange thing is, the four roms:

 

COLOURS.BIN

SOUND.BIN

tai01.bin

temp2600.BIN

 

are not accessible within the game itself, you have to start those in an external emulator like Stella or Z26 (that is, if you happen to find them).

The average user wouldn't even know they're there.

Edited by Buzbard
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I just installed Win'95 using "Virtual PC", and the majority of files are dated 8/24/96.

 

 

Good to know! The year seems a bit strange, as looking at Wiki again it says the release date for Windows 95 is Aug 24, 1995. The day an month are bang on though. What's also strange is that the majority of in the rom list I posted are 8/26/97. They are different by 1 year, but the day is pretty close. I'm not thinking to deeply into this... I just found it strange that the days were really close in all 3 cases.

 

The first version of Windows 95 was definately released Aug/95, with over a year of beta versions available for testing before that. The "95B" release was in 1996 that supported FAT32. Before that you could only have 2G drives/partitions. :)

 

The original Activision Action pack may have been for Windows 3.1 (I'm almost sure of it) and it also worked on Windows 95.

 

Activision's Atari 2600 Action Pack for Windows 95 (PC)

Release Region: United States

Release Date: June 1, 1995

 

Strange that it was released "before" Windows 95, so this must be an error, or they just changed the name later.

Edited by R.Cade
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However, if I took a Windows 95 disc and installed it today what year would it default to?

I just installed Win'95 using "Virtual PC", and the majority of files are dated 8/24/96.

I don't think Omega was referring to dates of the files on the install disc, but rather if one took a brand new machine of that vintage and turned it on and set it up for the first time, doing a clean install of Win95, what dates would be assigned to any newly-created files on that system, assuming the user did not bother to set the system date and time properly? I'm thinking this would likely not be a property of Windows, but rather the motherboard BIOS. If you happen to have a machine of that vintage on hand, simply removing the the lithium CMOS backup battery for a minute while powered off should reset the system time and date to its default. Running one with a dead or missing battery would have the same effect every time you turn it on.

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The Quadrun that is on the Atari Anthology is the dump that has been on the net for years. It is also the the prototype rom that was sold by Best Electronics in its lab loaners. One of the features of this prototype rom is it displays "Woita Wave" (programmed by Steve Woita) instead of "Crazed Wave".

 

More information on this rom can be found here:

 

http://www.atariage.com/forums/topic/113994-possible-two-different-quadrun-cartridges/

 

 

;         X    X   XXXX   XXXXXXX  XXXXXXX    XX
;         X    X  X    X     X        X      X  X
;         X    X  X    X     X        X     X    X
;         X    X  X    X     X        X     XXXXXX
;         X XX X  X    X     X        X     X    X
;         XX  XX  X    X     X        X     X    X
;         X    X   XXXX   XXXXXXX     X     X    X
;
;             X    X    XX    X     X  XXXXXX
;             X    X   X  X   X     X  X
;             X    X  X    X  X     X  X
;             X    X  XXXXXX  X     X  XXXXXX
;             X XX X  X    X   X   X   X
;             XX  XX  X    X    X X    X
;             X    X  X    X     X     XXXXXX

 

;           XXXX  XXXXX     XX   XXXXXXX  XXXXXX  XXXX
;          X      X    X   X  X       X   X       X   X
;         X       X    X  X    X     X    X       X    X
;         X       XXXXX   XXXXXX    X     XXXXX   X    X
;         X       X    X  X    X   X      X       X    X
;          X      X     X X    X  X       X       X   X
;           XXXX  X     X X    X XXXXXXX  XXXXXX  XXXX
;
;                X    X    XX    X     X  XXXXXX
;                X    X   X  X   X     X  X
;                X    X  X    X  X     X  X
;                X    X  XXXXXX  X     X  XXXXXX
;                X XX X  X    X   X   X   X
;                XX  XX  X    X    X X    X
;                X    X  X    X     X     XXXXXX

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SUPERBRK.BIN (Super Breakout) matches:

 

Super Breakout (Paddle) (1982 - 1981) (Atari, Carol Shaw, Nick 'Sandy Maiwald' Turner - Sears) (CX2608 - 49-75165) [a].bin

 

From Rom's V5 collection.

It's still in the V6 collection as well.

 

Should I remove it?

 

8)

It's legit. My only question is what to label it? I'm going to see if I have a Super Breakout to dump next week. I'm really trying to figure out if both versions were released, or just one.

 

 

You see the [a] version in your V5 collection matches the 1\4\81 prototype in Matt's proto collection. At the time it was labled the final version. The "final" and "[a]" versions got switched here, and Matt's version is now known as the [a] version:

 

http://www.atariage.com/forums/topic/103737-2600-rom-comparisions-and-dumps/page__st__275__p__1601173#entry1601173

 

 

So I'm know wondering if the [a] version was never a final version, and just a proto all the time? Does anyone else have a released version of Super Breakout that they want to dump? The more dumps we get, the better!! We need to figure out if both versions of Super Breakout were released, or just one of them. The only way to do that is with many rom dump samples to compare.

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So I'm know wondering if the [a] version was never a final version, and just a proto all the time? Does anyone else have a released version of Super Breakout that they want to dump? The more dumps we get, the better!! We need to figure out if both versions of Super Breakout were released, or just one of them. The only way to do that is with many rom dump samples to compare.

I see.

 

So the [a] version in V6 could be a prototype version after all.

 

BTW: what's there to say about that temp2600.BIN

 

8)

Edited by Rom Hunter
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