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booker
Account closed
Registered: Jul 2003
Posts: 333 |
8580 overdrive not emulated
Hello
Not sure if anyone is still working on SID emulation, however I think there's one bit missing from both Dag Lem's (which I love) and resid-fp
http://ehion.com/~booker/booker.c64scene.pl/8580overdrive.html
Tune (with source .sng) is here Intro 57
Time: 6th second. |
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Jammer
Registered: Nov 2002
Posts: 1289 |
I agree it's the right time to update emulation with this little feat ;) |
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Krill
Registered: Apr 2002
Posts: 2825 |
Is there technical info on that phenomenon? |
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booker
Account closed
Registered: Jul 2003
Posts: 333 |
Quoting KrillIs there technical info on that phenomenon?
Hi Krill. Not much that I would know. But when checking back in 2011 on couple of C64s, Hardsid Quattro and HardSid Uno all these would reproduce it. |
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Jammer
Registered: Nov 2002
Posts: 1289 |
Quoting KrillIs there technical info on that phenomenon?
I haven't come across any technical sheet on this :( Just figured it out empirically. 8580 starts to distort at low coarse cutoff (like $01), together with highest filter resonance and 'strong' pulses. Simply speaking - cannot handle lowest subs very well :D |
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chatGPZ
Registered: Dec 2001
Posts: 11101 |
As usual, the best way is to open a ticket, and try to describe the problem as precise as possible, and provide a simple way to reproduce it (a tune usually is not). |
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Jammer
Registered: Nov 2002
Posts: 1289 |
Quoting GroepazAs usual, the best way is to open a ticket, and try to describe the problem as precise as possible, and provide a simple way to reproduce it (a tune usually is not).
It's not a problem, it's potential feature! :D |
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chatGPZ
Registered: Dec 2001
Posts: 11101 |
As soon as someone opens a thread on csdb it turns into a problem quickly =P |
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booker
Account closed
Registered: Jul 2003
Posts: 333 |
Quoting GroepazAs usual, the best way is to open a ticket, and try to describe the problem as precise as possible, and provide a simple way to reproduce it (a tune usually is not).
Thx. What is the place to put the ticket on? |
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chatGPZ
Registered: Dec 2001
Posts: 11101 |
https://sourceforge.net/projects/sidplay-residfp/ .. thats what leandro reads, changes will then usually drip into VICE too |
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booker
Account closed
Registered: Jul 2003
Posts: 333 |
Thanks Greopaz. Any idea if Dag Lem is reachable? |
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chatGPZ
Registered: Dec 2001
Posts: 11101 |
He is, but he hasnt worked on ReSID for a long time. |
