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CD-i Fan #108264 12/26/16 01:15 PM
Joined: May 2009
Posts: 2,049
Likes: 85
J
Very Senior Member
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J
Joined: May 2009
Posts: 2,049
Likes: 85
That's just it though, they aren't well-emulated, at least not in MAME. The black-boxing in MAME has multiple notable issues, from Zelda's Adventure hanging when you try to walk to another screen, to certain games lacking sound effects and/or music. It's probably down to me not understanding the code you sent me at the time, but unfortunately I've long since lost access to the e-mail address which you sent the code to, so I can't even check anymore. smile

As I see it, since we have dumps of SLAVE and SERVO, it's preferable that MAME emulate them rather than going the black-box route. MAME is ostensibly meant to be a documentation project first, with playability being second. With that in mind, I'm perfectly fine taking my time with the CD-i driver in MAME (which I'm currently taking a break from to work on some discrete games) and directing people to use CD-i Emulator in the meantime. Though, admittedly, it's a tough sell since a lot of games on the CD-i were absolute shovelware, and I would wager most people just want to fire up the games long enough to do a playthrough for YouTube, and don't necessarily want to buy a commercial emulator. Still, CD-i Emulator is cheaper than buying a real CD-i console, and it has rather solid compatibility, and quality comes at a cost.

Just Desserts #108265 12/26/16 06:47 PM
Joined: Sep 2009
Posts: 223
C
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C
Joined: Sep 2009
Posts: 223
I agree that there are emulation issues, but I think these are mostly due to timing problems with the CDIC chip emulation, not so much SLAVE and/or SERVO. That being said, it's certainly worthwhile to have a better emulation of these two microcontrollers, if only because it brings us closer to the documented board parts.

If you need the source access again, I can resend the NDA version, just PM me. And thanks for the endorsement!

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