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View topic - Sega 8-bit autumn of dumps Part 3: Proto party!

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Sega 8-bit autumn of dumps Part 3: Proto party!
Post Posted: Sat Nov 26, 2011 4:16 pm
Last edited by Bock on Wed Nov 30, 2011 1:35 am; edited 2 times in total
We've got 6 very rare prototypes today!





First we've got here a lovely early Master System prototype and its associated Prototype v1.0 Sega Master System BIOS. The final retail version bear a v1.3 version number and include an instruction screen and the secret snail maze game, which this prototype version haven't. A few more information about this unit on the dedicated forum thread.

A few games came with this console and as it happens all of them were prototype builds. Here's four new dumps.






Choplifter [Proto] for the Master System.
Hang On / Safari Hunt [Proto] for the Master System.
TransBot [Proto] for the Master System.
World Grand Prix [Proto] for the Master System.
(NB- The Ghost House card pictured is also a prototype build but we've already released this dump a few years back.)

*EDIT* Paul has done an analysis and writeup about the TransBot prototype.

Last but not least,





A unique test cartridge from 1984. SG1000 M2 Check Program / Test Cartridge (テスト カートリッジ) for the SG-1000. The story behind this is totally unknown. Huge thanks to Masato for providing us with this little rarity :)

Have a great month of December leading to Christmas!
sms_prototype_v10.jpg (54.96 KB)
sms_prototype_v10.jpg

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Temporary Transitional Attachment Fairy
Post Posted: Sat Nov 26, 2011 4:25 pm
This message will auto destruct itself someday.

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Post Posted: Wed Nov 30, 2011 12:26 am
Very, very jealous.... $600 though! Ouch.... :)

Quick comment re: SG1000 M2 Check Program Test Cartridge

Firstly, should this not be in the SG section rather than SMS/MKIII? Also, should it really be tagged proto/beta? It could just as likely be a 'final' test cart too.... just a thought.

It's interesting to see the display of the name too... Don't know if you ran in Meka, but Kega Fusion is missing the 'M' in 'PROGRAM' too. But if you look for the string in the image, it's definitely stored correctly.....
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Post Posted: Wed Nov 30, 2011 1:04 am
Cassiel wrote
Firstly, should this not be in the SG section rather than SMS/MKIII?

Yes correct, the platform parameter was incorrectly set, i fixed it now.

Quote
Also, should it really be tagged proto/beta? It could just as likely be a 'final' test cart too.... just a thought.

The label of this label is debatable, maybe the word "proto" isn't the most appropriate in all cases but I am using it for non-retail software in general.

Quote
It's interesting to see the display of the name too... Don't know if you ran in Meka, but Kega Fusion is missing the 'M' in 'PROGRAM' too. But if you look for the string in the image, it's definitely stored correctly.....

Yes, i confirmed the bug from the cartridge I dumped. The string in the file is correct but the number of bytes copied to VRAM does not account for the 'M'.
Japanese developers in those days weren't really fussy with english and I think its likely that this was just as left as-is by the people who made the soft.
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TransBot prototype
Post Posted: Wed Nov 30, 2011 1:35 am
Paul has done an analysis and writeup about the TransBot prototype.
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Post Posted: Fri Mar 20, 2015 9:09 am
segmtfault has now reverse engineered the 1.0 BIOS http://www.smspower.org/forums/15379-BIOS10FullyCommentedDisassembly
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