4 ms·
The CRTC latches the display start address at the beginning (IIRC) of vblank, so you can just write a new value to that register at any time without affecting t
by rep_lodsb 2y ago
The CRTC latches the display start address at the beginning (IIRC) of vblank, so you can just write a new value to that register at any time without affecting the current frame.