View Single Post
Old 31 December 2012, 18:01   #20
Toni Wilen
WinUAE developer
Join Date: Aug 2001
Location: Hämeenlinna/Finland
Age: 42
Posts: 20,484

So it is as simple as:

hsync: every other line, not synced to NTSC long or short lines.
vsync: if genlock is connected to interlaced signal: long fields only, if non-interlaced: both fields.

Emulation still needs to handle genlock forced odd/even toggle in non-interlaced modes before timing is exactly right.

Also technically timing shouldn't be exactly right because genlock source was usually VHS video cassette
Toni Wilen is offline  
Page generated in 0.04632 seconds with 9 queries