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Merge pull request #909 from TomHarte/BackToFive
Tweaks video timing, again.
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commit
8a6985c2e8
@ -88,10 +88,10 @@ template <VideoTiming timing> class Video {
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.cycles_per_line = 228 * 2,
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.cycles_per_line = 228 * 2,
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.lines_per_frame = 311,
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.lines_per_frame = 311,
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// i.e. video fetching begins six cycles after the start of the
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// i.e. video fetching begins five cycles after the start of the
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// contended memory pattern below; that should put a clear two
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// contended memory pattern below; that should put a clear two
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// cycles between a Z80 access and the first video fetch.
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// cycles between a Z80 access and the first video fetch.
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.contention_leadin = 6 * 2,
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.contention_leadin = 5 * 2,
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.contention_duration = 129 * 2,
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.contention_duration = 129 * 2,
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// i.e. interrupt is first signalled 14368 cycles before the first video fetch.
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// i.e. interrupt is first signalled 14368 cycles before the first video fetch.
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