|3||Horizontal and Vertical Sync Widths||VVVVHHHH||128+14||HSync pulse width in characters (0 means 16 on some CRTC), should always be more than 8; VSync width in scan-lines. (0 means 16 on some CRTC. Not present on all CRTCs, fixed to 16 lines on these)
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|4||Vertical Total(-1)||x0000000||38||Height of the screen, in characters.
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|5||Vertical Total Adjust||xxx00000||0||Measured in scanlines, can be used for smooth vertical scrolling on CPC.