View test results for:
CRTC character Row:r (0x0)
VSync position From:fY axis
VSync position To:tX axis

Observed bitwise conditions:
Actual test results:
all conditions met; no glitch
n
all conditions met; glitched for n/40 frames
n
conditions not met; glitched for n/40 frames
--
N/A (r=f → vsync already in progress on rewrite)

Cell under mouse cursor (hover):