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CRTC

47 bytes added, 8 July
/* Interlace sync and video mode (IVM) */
It is necessary to reprogram the CRTC as if we were building a frame of 624 lines.
CRTC 2 is the exception . R4, R5, R6, R7 do not need to be reprogrammed as it considers each character line to be a double character line.
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Phi2x
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