Reply To: Mode 13h / 400p, 70 Hz compatibility

[Thomago]

Basic sampling settings needed for Mode 13h:

H. samplerate = 900
V. backporch = 36
H. active = 400

Settings needed for makeshift aspect ratio correction (my monitor is unable to force 4:3 for the resulting 1280×800 resolution) and centering the image:

H. backporch = 1
H. active = 893
H. synclen = 64

I wish I could increase H. active even further to get an actual 4:3 image, but values above 893 yield a black picture. Well… better than nothing.