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I think i have some NEW dumps (I own the PCBs)
#337114 - 02/22/15 03:26 PM
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Hi there, I was advised to register and post here about some PCBSS I own
One is PENGO Boot by SEGA
One is Star Force Boot
Now this is what I have found upon dumping them
SEGA Pengo, runs in debug mode in the PENTA folder of MAME but is not 100% penta it is defo different.
It has PENTO in the text screen but it has the SEGA LOGO. it Defo different from any Dumped PENGO games within MAME 158. The ROMS themselves verify as a weird mashup of 2 sets
As for Star Force. that one im currently trying to repair and it plays fine on screen but has some missing sprites. so I decided to dump the roms to see if I has corrupt GFX roms and tried to verify in MAME 158 and many came up unknown.
My next task was to run the roms in MAME debug to see fi I get the same issues to confirm its the ROMS are corrupt, but instead I found the roms run perfect in MAME and it seems that this is also a un-dumped ROM Set I have
have you guys got any thoughts or would like me to submit these for your own testing
(btw the PROMs for both games are global to the parent set)
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Re: I think i have some NEW dumps (I own the PCBs)
[Re: Silverfox0786]
#337116 - 02/22/15 06:46 PM
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You can either upload them to sendspace and send me a private message with the link or you can use the submission form/button/whatever it currently is at mamedev.org.
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Re: I think i have some NEW dumps (I own the PCBs)
[Re: Smitdogg]
#337117 - 02/22/15 07:41 PM
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let me get it uploaded and I will send you a pm
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Re: I think i have some NEW dumps (I own the PCBs)
[Re: Smitdogg]
#337118 - 02/22/15 07:57 PM
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> You can either upload them to sendspace and send me a private message with the link
> or you can use the submission form/button/whatever it currently is at mamedev.org.
i have sent you pm with teh dumps
you obviously know this but i will still add
Starfoce i ran as starforc.zip
Pengo i ran as Penta.zip
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| gregf |
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Ramtek's Trivia promoter
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Reged: 09/21/03
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Posts: 8603
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Loc: southern CA, US
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Send PM
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>One is PENGO Boot by SEGA
>One is Star Force Boot
>Now this is what I have found upon dumping them
>SEGA Pengo, runs in debug mode in the PENTA folder of MAME but is not 100% penta it is
>defo different.
>It has PENTO in the text screen but it has the SEGA LOGO. it Defo different from any
>Dumped PENGO games within MAME 158. The ROMS themselves verify as a weird mashup of 2 sets
>As for Star Force. that one im currently trying to repair and it plays fine on screen
>but has some missing sprites. so I decided to dump the roms to see if I has corrupt GFX
>roms and tried to verify in MAME 158 and many came up unknown.
>My next task was to run the roms in MAME debug to see fi I get the same issues to
>confirm its the ROMS are corrupt, but instead I found the roms run perfect in MAME and
>it seems that this is also a un-dumped ROM Set I have
>have you guys got any thoughts or would like me to submit these
Anything sent in (if believed to be different or not supported in MAME) is always welcomed. Thanks for what has been sent in because the sets might be useful in case there are others that have same pcbs and need to replace roms in case roms go sour/bad.
>(btw the PROMs for both games are global to the parent set)
You might be asked by a MAMEdev member later if the proms can also be dumped. In the past, some of the proms might have been overlooked when roms from various games were dumped earlier. Then what might happen is some emulation bug issue which left users guessing if the romset had bad dumps or an emulation issue in MAME not yet resolved.
On a couple past occasions, it was because a prom might have been overlooked when roms were dumped and once the missing prom was added, then there would be no more emulation/bug issues.
Granted what you already tested seems to be same and okay, but it helps just to be sure nothing gets overlooked when new sets of roms and proms are dumped.
Anyway, thanks for sending in what has already been sent.
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| B2K24 |
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MAME @ 15 kHz Sony Trinitron CRT user
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Reged: 10/25/10
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Posts: 2663
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Send PM
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Re: I think i have some NEW dumps (I own the PCBs)
[Re: Silverfox0786]
#337121 - 02/22/15 09:32 PM
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Yes, as gregf has said Thank You for the submissions. 
Perhaps consider taking Hi-Res pics of those PCBs and others that you have access to as well
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Re: I think i have some NEW dumps (I own the PCBs)
[Re: B2K24]
#337125 - 02/22/15 09:47 PM
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> Yes, as gregf has said Thank You for the submissions.
>
> Perhaps consider taking Hi-Res pics of those PCBs and others that you have access to
> as well
i own both PCBs and have gone through teh washer so are crystal clean
i will get my best camera and get tehm photographed
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Re: I think i have some NEW dumps (I own the PCBs)
[Re: Silverfox0786]
#337126 - 02/22/15 09:48 PM
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For Starforce Haze says 1.3hj has fixed bits so it didn't read out correctly but that it would match a set in mame if read right, but the other roms you had in the set that are different from mame dumps are only 1 bit off so they are bitrotted and you need to erase them and reburn with the images from mame, or you might have to replace them with different chips if they don't verify as matching mame 100% after the reburn.
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Re: NEW dumps
[Re: gregf]
#337127 - 02/22/15 09:59 PM
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> > One is PENGO Boot by SEGA
> > One is Star Force Boot
>
> > Now this is what I have found upon dumping them
>
> > SEGA Pengo, runs in debug mode in the PENTA folder of MAME but is not 100% penta it
> is
> > defo different.
> > It has PENTO in the text screen but it has the SEGA LOGO. it Defo different from any
> > Dumped PENGO games within MAME 158. The ROMS themselves verify as a weird mashup of
> 2 sets
>
>
> > As for Star Force. that one im currently trying to repair and it plays fine on
> screen
> > but has some missing sprites. so I decided to dump the roms to see if I has corrupt
> GFX
> > roms and tried to verify in MAME 158 and many came up unknown.
> > My next task was to run the roms in MAME debug to see fi I get the same issues to
> > confirm its the ROMS are corrupt, but instead I found the roms run perfect in MAME
> and
> > it seems that this is also a un-dumped ROM Set I have
>
>
> > have you guys got any thoughts or would like me to submit these
>
> Anything sent in (if believed to be different or not supported in MAME) is always
> welcomed. Thanks for what has been sent in because the sets might be useful in case
> there are others that have same pcbs and need to replace roms in case roms go
> sour/bad.
>
>
> >(btw the PROMs for both games are global to the parent set)
>
> You might be asked by a MAMEdev member later if the proms can also be dumped. In the
> past, some of the proms might have been overlooked when roms from various games were
> dumped earlier. Then what might happen is some emulation bug issue which left users
> guessing if the romset had bad dumps or an emulation issue in MAME not yet resolved.
>
> On a couple past occasions, it was because a prom might have been overlooked when
> roms were dumped and once the missing prom was added, then there would be no more
> emulation/bug issues.
>
> Granted what you already tested seems to be same and okay, but it helps just to be
> sure nothing gets overlooked when new sets of roms and proms are dumped.
>
> Anyway, thanks for sending in what has already been sent.
at the monet i dont have a PROM reader but if they are absolutluy nessasary i can have teh PCBs sent to a friend who can dump them
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Re: I think i have some NEW dumps (I own the PCBs)
[Re: Smitdogg]
#337128 - 02/22/15 10:04 PM
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> For Starforce Haze says 1.3hj has fixed bits so it didn't read out correctly but that
> it would match a set in mame if read right, but the other roms you had in the set
> that are different from mame dumps are only 1 bit off so they are bitrotted and you
> need to erase them and reburn with the images from mame, or you might have to replace
> them with different chips if they don't verify as matching mame 100% after the
> reburn.
cheers for that info
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Re: I think i have some NEW dumps (I own the PCBs)
[Re: Smitdogg]
#337130 - 02/22/15 11:24 PM
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> For Starforce Haze says 1.3hj has fixed bits so it didn't read out correctly but that
> it would match a set in mame if read right, but the other roms you had in the set
> that are different from mame dumps are only 1 bit off so they are bitrotted and you
> need to erase them and reburn with the images from mame, or you might have to replace
> them with different chips if they don't verify as matching mame 100% after the
> reburn.
Haze thinks they're bitrotted. That doesn't necessarily mean they are.
Can you try redumping those 'unique' roms to be sure they read the same each time?
LN
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"When life gives you zombies... *CHA-CHIK!* ...you make zombie-ade!"
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Re: I think i have some NEW dumps (I own the PCBs)
[Re: Lord Nightmare]
#337162 - 02/24/15 03:00 AM
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Could someone explain what exactly bitrot is and what actually causes it.
It would be appreciated ;-)
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Only here to annoy...
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Re: I think i have some NEW dumps (I own the PCBs)
[Re: Renegade]
#337163 - 02/24/15 05:40 AM
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> Could someone explain what exactly bitrot is and what actually causes it.
>
> It would be appreciated ;-)
Data stored in ROM is eventually lost. The causes vary depending on the technology, but they include mask layer oxidation, and trapped electrical charges leaking.
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https://www.google.com/?gws_rd=ssl#q=bit +rot
[Re: Renegade]
#337215 - 02/25/15 11:40 PM
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In other words, bad, like it sounds.
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Scifi frauds. SF illuminates.
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