| drewcifer |
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One bad Mutha-(shut yo' mouth!)
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Reged: 07/01/04
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Posts: 428
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Closing the book on Brian Schmidt's Mouse Trap.
#244144 - 01/22/11 12:56 AM
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Re: Closing the book on Brian Schmidt's Mouse Trap.
[Re: drewcifer]
#244148 - 01/22/11 03:40 AM
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> The Doc's decapped another sound chip as well! Stay tuned for more news soon.
Andrew, can we close the book on DSP16A? 
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| drewcifer |
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One bad Mutha-(shut yo' mouth!)
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Reged: 07/01/04
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Posts: 428
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Re: Closing the book on Brian Schmidt's Mouse Trap.
[Re: Shoegazr]
#244150 - 01/22/11 03:59 AM
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> Andrew, can we close the book on DSP16A?
While it's true that particular book has been opened, it's pretty far from being closed.
In addition to the usual bit-typing and decoding, a new CPU core will need to be written before a satisfactory closing...
Andrew
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Re: Closing the book on Brian Schmidt's Mouse Trap.
[Re: drewcifer]
#244155 - 01/22/11 04:42 AM
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Does the current (0.141) BSMT2000 emulation have any known bugs? I can only compare to my Battletoads PCB and MAME sounds already perfect... i guess other games might use unemulated functions of course.
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| drewcifer |
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One bad Mutha-(shut yo' mouth!)
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Reged: 07/01/04
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Posts: 428
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Re: Closing the book on Brian Schmidt's Mouse Trap.
[Re: Stefan Lindberg]
#244161 - 01/22/11 05:23 AM
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> Does the current (0.141) BSMT2000 emulation have any known bugs? I can only compare
> to my Battletoads PCB and MAME sounds already perfect... i guess other games might
> use unemulated functions of course.
I'm not an expert, but this is R. Belmont's response to a question about the BSMT2000 and another sound chip on the MAMEworld boards awhile back:
"Both of these chips run internal programs that do the actual sound mixing, so emulating them will give the correct original PCB sound... BSMT2000 has a number of corner cases that may not be right." - R. Belmont
Andrew
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Re: Closing the book on Brian Schmidt's Mouse Trap.
[Re: drewcifer]
#244165 - 01/22/11 05:49 AM
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> > Does the current (0.141) BSMT2000 emulation have any known bugs? I can only compare
> > to my Battletoads PCB and MAME sounds already perfect... i guess other games might
> > use unemulated functions of course.
>
> I'm not an expert, but this is R. Belmont's response to a question about the BSMT2000
> and another sound chip on the MAMEworld boards awhile back:
>
> "Both of these chips run internal programs that do the actual sound mixing, so
> emulating them will give the correct original PCB sound... BSMT2000 has a number of
> corner cases that may not be right." - R. Belmont
Even more importantly, the ADPCM decoding has never been right on the BSMT2000. Now it will be perfect. I don't think any of the arcade games used it, but the pinball games certainly did.
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| R. Belmont |
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Cuckoo for IGAvania
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Reged: 09/21/03
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Re: Closing the book on Brian Schmidt's Mouse Trap.
[Re: AaronGiles]
#244222 - 01/22/11 06:20 PM
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> Even more importantly, the ADPCM decoding has never been right on the BSMT2000. Now
> it will be perfect. I don't think any of the arcade games used it, but the pinball
> games certainly did.
Yup, the pinballs always sounded not-quite-right in M1 and PinMAME. This will help a lot (well, maybe not PinMAME since they're stuck on 0.84 or whatever).
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Re: Closing the book on Brian Schmidt's Mouse Trap.
[Re: drewcifer]
#244233 - 01/22/11 07:40 PM
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> You mameworld peeps rule!
> http://www.mameworld.info/ajg
>
> The Doc's decapped another sound chip as well! Stay tuned for more news soon.
>
>
> Andrew
I see the number 17 'green' on guru's status page ?!?
This would be awesome ....
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