09:13:19 <sech1> tevador from design.md: "The approximate range of possible group E register values is 1.7E-77 to infinity."
09:13:50 <sech1> But according to my calculations, group E registers can go as low as 2^-511 ~ 1.49E-154
09:13:55 <sech1> after an iteration
09:14:23 <sech1> Start with 2^-255, then 256 FDIV_M where each FDIV_M divides by 1.11111...11b*2^0
09:15:04 <sech1> thankfully, there's never an underflow, so no need to specify the case of underflow
09:15:21 <sech1> I noticed that JIT used flush-to-zero mode, but interpreted VM uses whatever is by default
09:30:15 <sech1> on the other hand, a program consisting of 256 FDIV_M instruction is probably impossible because the probability of that is (6/256)^256 ~ 4.98e-418 and we have only ~1.34e154 possible inputs
09:30:57 <sech1> no, (4/256)^256 ~ 4.14e-463
09:32:53 <sech1> actually, even (1/256)^256 ~ 3.09e-617 because it has to be the same register every time
18:13:11 <tevador> sech1: the value in the docs is not the theoretical minimum; IIRC I ran 100k programs and took the lowest value
18:14:19 <sech1> yeah, but we need to know theoretical minimum, because flush-to-zero is never mentioned in docs
18:26:43 <tevador> you are right, it was in one of the previous versions, I'm not sure why it got removed
18:26:55 <tevador> FTZ and DAZ should be mandatory
18:27:51 <tevador> but 1e-154 is still not low enough to trigger FTZ
21:15:26 <tevador> https://github.com/xmrig/xmrig/issues/1522
21:15:34 <tevador> what a waste of hardware