 No.07227
Canim Senior Tester
Feb 18, 2011, 01:48
edited on: Feb 18, 2011, 03:35
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As far as I read it uses a duo OSC with 32MHz and 18.432MHz. 32/2=16MHz for M68000-16 and it should be 18.432/2=9.216MHz for Z80 (sound) and not 8MHz. I'm testing it now cause framerate is correct as it is exacly like Smitdogg's video and source says 16MHz confirmed. Check ID 03959. Gaiapolis uses the same OSC. It's little bit odd but 9.216MHz and a NMI_line_pulse of 505 gave me the correct sound to video sync. But it's necessary to test the other games in the driver cause they all use the same clock and NMI. It works for gaiapols too cause the gong plays now till the end. Tested the other ones and maybe it's just my feeling music fits better to the video cause scene changes fit to music changes and tempi changes in music fit to sudden actions in video. Maybe someone else finds videos for all this. |
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No.07245
user888
Feb 20, 2011, 01:31
edited on: May 31, 2012, 05:41
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I found the PCB Recording of this |
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No.07247
Canim Senior Tester
Feb 20, 2011, 17:19
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The video has a better quality than Smitdogg's and has the same timing. Other videos than mystwarr and gaiapolis would be needed like metamrph or mtlchamp or viostorm. Hence the other games of that driver. Providing a link is greatfully appreciated. cu |