Reported against the pre-registration, failure first.
HELD, and by a cleaner argument than the regression: the clock is NOT
frame-counted. The same animation takes 21 frame labels in one capture and
33 in another, and splash A's logo steps +136,+34 in one and
+17,+51,+34,+34,+17,+17 in the other. A fixed per-frame increment cannot do
that. Steps are always integer multiples of 17 (255/15 = one unit), so the
clock advances in whole units at a rate set by how long the frame took.
That retires '2 units per submitted frame' as a MECHANISM -- including my own
page from two hours ago. The measurement stands; 2 was that run's frame
pacing. units = 2 x frames computes an emulator artefact. Recorded as a
proposal against the register, not enacted, and noted at the head of the H3
page rather than by editing it.
FAILED: predicted 60 units per guest second, accept 55-65. Measured median
29.9 over six elapsed-ratio estimates (25.2-36.6). Prediction 3 said 30 was
excluded and 30 is what came out.
Why the rate is not a number yet: units/s = (d_alpha/dt) * T/255, and T is
the load-bearing term. d_alpha/dt is measured cleanly six ways. T=15 for
these elements comes from a corpus row whose usual derivation is circular
with the thing just retired -- a step of 34/frame implies T=15 only GIVEN 2
units/frame. T=30 would give ~60. No amount of re-measuring alpha settles it.
Settles with ptbtn00, whose T=22 is attested by two independent readers with
no clock anywhere in the chain. That capture did not reach the title in 531 s
of attract loop against 243 s in the previous run -- the variable attract
loop capture-harness-status.md already documents at up to 604 s. Instrument
built and control-passed; one run is missing.
Instrument: guest timebase, 50 MHz per emulator.cc:225, scalar 1.0 per
clock.cc:37, so no host wall clock enters any number. Control: 123.24 guest
seconds across a capture running ~118 wall seconds.
Told the port to change NOTHING today: ~30 rests on an unverified T, and
retiring 2 x frames does not by itself supply a replacement.
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