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Tweaks video timing, again.

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This commit is contained in:
Thomas Harte 2021-04-06 21:04:54 -04:00
parent aa8ce5c1ac
commit 60e8273de2
1 changed files with 2 additions and 2 deletions
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4
Machines/Sinclair/ZXSpectrum/Video.hpp
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@ -88,10 +88,10 @@ template <VideoTiming timing> class Video {
.cycles_per_line = 228 * 2, .cycles_per_line = 228 * 2,
.lines_per_frame = 311, .lines_per_frame = 311,
// i.e. video fetching begins six cycles after the start of the // i.e. video fetching begins five cycles after the start of the
// contended memory pattern below; that should put a clear two // contended memory pattern below; that should put a clear two
// cycles between a Z80 access and the first video fetch. // cycles between a Z80 access and the first video fetch.
.contention_leadin = 6 * 2, .contention_leadin = 5 * 2,
.contention_duration = 129 * 2, .contention_duration = 129 * 2,
// i.e. interrupt is first signalled 14368 cycles before the first video fetch. // i.e. interrupt is first signalled 14368 cycles before the first video fetch.