== Advanced testing ==
* Only horizontal timing of the CRTC is affected.In order to get a stable image , you need to program register 0 at 95 (96 characters line) and Register 2 at 61 (centering for 40 characters default)
* Pixels pitch is 66,7% of their original pitch.Theses pictures show this fact (320*240 200 mode 1 pixels with black border)
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Image:12062011055.JPG|Original CPC @16Mhz