Does scanline (LY) keep counting with screen off? (solved)

Discussion of programming and development for the original Game Boy and Game Boy Color.
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Dwedit
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Does scanline (LY) keep counting with screen off? (solved)

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Does the scanline counter (LY) keep counting when the display is disabled? Does it freeze at whatever it was before, keep counting, or go to zero? Does the LY==LYC check still happen while the display is disabled?

EDIT:
BGB emulates it like this: Sets LY to zero when turning off the display, LY doesn't count up at all, LY == LYC check does not happen.
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