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Kaizen
Registered: May 2009
Posts: 24 |
NTSC video sync differs on Power64 and VICE X64
Hi,
Im working on a NTSC effect that includes classical color raster barlines.
Ive tested it on both Power64 and VICE, but the sync with the same delay values works well in one and is wrong in other and vice versa if I change the values.
I cannot test on a real NTSC machine, so I would like to have a suggestion for my test choice, in order to have a perfect synth on a real NTSC machine.
Perhaps, I think, VICE is emulating with better accuracy than Power64... what do you think about it?
THX. ;-) |
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Mr. SID
Registered: Jan 2003
Posts: 424 |
I wouldn't rely on Power64 for any kind of emulation accuracy, especially not when it comes to NTSC. |
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Nafcom
Registered: Apr 2002
Posts: 588 |
Quote: I wouldn't rely on Power64 for any kind of emulation accuracy, especially not when it comes to NTSC.
Unfortunately the same is valid for VICE. I would suggest try CCS64 for NTSC. |
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tlr
Registered: Sep 2003
Posts: 1790 |
Quote: Unfortunately the same is valid for VICE. I would suggest try CCS64 for NTSC.
I think x64sc will be more accurate than CCS64 in most cases but feel free to report any bugs you find. |
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chatGPZ
Registered: Dec 2001
Posts: 11386 |
Quote:I would suggest try CCS64 for NTSC.
uww. seriously, vice hasnt been as broken as ccs64 for a while, even in ntsc =)
besides that, you cant rely on emu ever, not even on pal =P
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Moloch
Registered: Jan 2002
Posts: 2928 |
... or you could ask one of the NTSC guys here to test your part on real hardware. ;)
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Nafcom
Registered: Apr 2002
Posts: 588 |
Quote: ... or you could ask one of the NTSC guys here to test your part on real hardware. ;)
agree. actually why didn't you ask me? I have an NTSC SX64 and I have a recording equipment.
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Kaizen
Registered: May 2009
Posts: 24 |
Many thanks to all of you!
Nafcom, I will ask you soon... currently is still WIP, but I've almost finished. ;-) |
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ferris
Account closed
Registered: May 2011
Posts: 9 |
In my experience (testing on a real NTSC machine), Vice is very accurate. The only inconsistencies I ran into on the real hardware vs. Vice had (I think) to do with slightly different ROM versions, and were only things like parts of RAM were cleared to certain values in emu, but not on h/w, etc.
All timing was (from what I could tell; doing strict timing routines such as opening sideborders etc) perfectly accurate in Vice for NTSC.
EDIT: Yeah, just read Nafcom's test post; go with that :) |
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Nafcom
Registered: Apr 2002
Posts: 588 |
Quote: Many thanks to all of you!
Nafcom, I will ask you soon... currently is still WIP, but I've almost finished. ;-)
ok :) |
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chatGPZ
Registered: Dec 2001
Posts: 11386 |
and if you find differences between vice and the real thing, please report them on the bugtracker so they can be fixed :) |
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Nafcom
Registered: Apr 2002
Posts: 588 |
Quote: and if you find differences between vice and the real thing, please report them on the bugtracker so they can be fixed :)
See the latest issue of Scene World, when it was released back then the intro of that didn't work in the correct timing at all, it had flicker on NTSC. Don't know if newer versions have fixed that (I don't use emulators myself except making s screenshot maybe) so feel free to try out :) |
