> However, you can save 1 byte of RAM by using the branch instructions instead, as long as you know which flag(s), if any, are guaranteed to be on or off at the jump point.
> For example, if you know the carry flag will always be clear at the jump point, and if the jump distance is within branching range, you can replace JMP with BCC.
However if the BCC crosses a page boundary it'll take 4 cycles, one cycle longer than a JMP.
The Soviets tried to transition from an economy focused on war and heavy industry to a consumer oriented economy, and they failed massively. See the book 'Building a ruin'.
They never actually put a full effort into building a consumer oriented economy.
The authorities would say something about a new food program or a housing program but only as motivational goals. Main players always saw getting people less economically dependent on the state as a major threat.
Making people economically miserable was never a goal, but when building consumer economy would start showing promise the state would reestablish control (see for example Kosygin reforms).
Exactly; the Soviet Union famously tried to reform its political institutions before reforming its economy. The Chinese looked at that and decided never to reform their political system.
I'm not sure the Soviets ultimately ever really tried to make the transition, when confronted with the reality that the ruling dogma that they represented no longer worked, they couldn't handle the collapses in the periphery.
Also see the 'lost years' of the Japanese economy, or the Chinese as they try to make the transition now.
It is terribly hard, but the USSR had their heads well in the sand at that point.
Cool, but the method of verifying the data (playing back the movie) seems non-optimal. The movie could have had some data corruption that went unnoticed.
Ideally the test should include the number of bit errors that were corrected using on-disc ECC. This could then also be used to estimate disc lifetime (preferably using multiple samples).
If you are willing to sacrifice some storage space on the disk, then dvdisaster (https://en.wikipedia.org/wiki/Dvdisaster) can add extra ECC data to the disk that will allow recovery even if some percentage of the disk errors out upon read later.
Granted, if one no longer has the mechanical drive, or if the disk errors out beyond the threshold where the extra ECC can correct the errors, the data's still lost. But it (dvdisaster) does provide some protection from the "bit-rot" case where the disk slowly degrades.
For this purpose, I think it would be nice to access the raw data, to see any errors that would be otherwise masked. As someone in the comments suggested, one might compare number of corrected errors in 1, 2, 5 years and compare to the number of redundant bits stored to estimate the expected longevity of the medium
Also, the storing it outside isn't a very good test of how long it will last inside.
Also also, M-Disc is like Imax, a theater could have that label because it projects 70mm film into a dome or because it's a regular movie theater with a lower resolution than your phone screen that licenses the rights to the name. There are M-Disc DVDs that use a special archival technology that requires compatible drives, but the M-Disc Blu-Ray discs are made with regular Blu-Ray manufacturing technology. With both Imax and M-Disc, they require a minimum quality level to license the trademark, but exceeding that quality level is far from exclusive to that trademark.
My understanding is that the thing that makes M-Disc DVDs special is that they don't use organic dyes in the recording. Blu-ray discs, with the exception of the weird LTH ones, by default don't use organic dyes. Consequently, the main magic of DVD M-Disc is just the default with BDR.
For a long time the vast majority of DVD-R disks have been light-to-dark (ie, the laser writing to a spot makes that spot darker, not lighter.) Dark-to-light disks were rare, the cheapest, and fell out of production pretty fast.
For those confused like me: the line drawing shows both halves of the stela, including the ‘7’ (-..) just above the break. The bottom half was found 30 years before the top.
A substantial percentage of the population (10% to 15%) has IBS-like symptoms, and would be sensitive to even small amounts of polyols (another name for sugar alcohols).
Hence why they are excluded in a low-FODMAP diet (the P stands for polyols).
Wow, WP has 10-15 in the developed world and 15-45% globally. I never knew it was such a widespread thing. Crazy, yeah, that would certainly change it for them.
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