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*rubber duck thread* Using the Sega CD subcpu in mode 1 is very doable but the larger problem is: what kind of tasks can we hand off to it, and are they asynchronous?

 We can't run code directly off the cart from the subcpu. We can't simply make the faster cpu run the game. So it makes more sense that we'd have subroutines running on the subcpu to accelerate common operations that can be called from the MD main cpu.
But we run into a problem here. First is defining what "common operations" would really be. Since the subcpu is another 68k with a roughly 50% higher clock, it wouldn't make much sense to run very small or atomic operations on it. There is overhead in passing arguments...
... because it has to be done in shared memory. Overhead could kill the gains. We'd get more benefit from a larger, more complex function to really take advantage of that higher clock speed. This adds another layer to the problem, synchronicity.
If the MD cpu has to block (stop and wait for a result from the subcpu) we're losing a lot of potential throughput. The effect is similar the other way around in that we also waste resources on the subcpu waiting for a command from the MD.
(BTW this is why using the dual SH2s on the Saturn wasn't super popular, as it requires a similar semaphore setup. The game would have to be carefully crafted to utilize it at the planning stages.)
If you can set up a task that runs asynchronously, that is, both CPUs working away, then that's ideal. It's just that for a lot of games, this isn't really feasible or useful. Most game loops on this old hardware are essentially single threaded and each step is done in order...
...every time, for every frame, and if there isn't time to do it all? Slowdowns. This isn't true of every game of the era, but it's true the vast majority of the time. So ultimately, this makes the entire approach not attractive for rom hacks. Much like a Saturn game...
...you'd have to arrange the game loop as such to not waste time and resources. To do certain things asynchronously. Nearly impossible for a rom hack. But what about homebrew and new games going forward? There is a bit of promise here but still some caveats.
The best reason to use the subcpu is to get access to the cd hardware features: the disc drive, the PCM, the additional RAM, the ASIC graphics scaling features. Using it to accelerate CPU bound operations is probably not worthwhile.
What if you designed a game to use resources carefully, though? You're still a bit hampered by the fact that the two CPUs can't run the same code out of the same memory, so no clever threading tricks. Also at this point you may as well be making a a Sega CD game!
To this end I'm experimenting with creating a small library, intended for homebrew, but similar to MSU-MD, that will allow the user to play PCM, CDDA, and (hopefully!) use the scaler. I don't know if this will mature and it depends on how useful it ultimately is.

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🧵 @DianeLangberg wrote about NDAs in Christian environments, noting “An NDA is an agreement to hide something. In the cases I have encountered it has always been an agreement to exercise power over and hide sin.... [it is] unlike our Lord.”
1/

NDAs are traditionally “non-disclosure” - don’t talk about specific X. Often in church/ministry cases - they’re overly broad - don’t talk abt *anything* re: your employment

but also may include

“non-disparagement” - don’t say anything negative about us EVEN IF IT IS TRUE
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Numerous articles have described the use of NDAs in Christian environments and the conflict with principles described in the very faith supposedly being promoted. I’m linking them here then I’ll offer my 20-year lawyer and victim of silencing (gag order) take on the practice.
3/

“Silence of the sheep” (2018) from @emlybelz described how the conference of catholic bishops has now banned NDAs in abuse cases but how some churches and Christian orgs still use them without

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@shreyas
Why does Your Manager’s Manager (YMM) request a deck/doc during a meeting, says it’s urgent, and then doesn’t respond for days after you create & send it?

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Answers in this thread👇🏾

Have you set an entirely new password on a site & said to yourself: “surely, I’ll remember it becos this site is so important for me”. Have you then gone on to forget that password the very next week?

Me too.

The reason for YMM’s odd behavior & my password optimism is the same.

That reason is the Focusing Illusion, first described by Daniel Kahneman.

The Focusing Illusion:
Nothing in life is as important as you think it is while you are thinking about it.

When YMM asked you to create that doc as one of the follow up actions during the Product Review, YMM fell prey to the Focusing Illusion.

Trust me, YMM had no intention of making you do busywork.

YMM truly believed that it was very impt & urgent to create that doc & review it.

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Simon Wardley
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X : Do you think cloud will decentralise?
Me : Already has - started with regions and AZs and is now rapidly expanding into outpost, greengrass, EKS anwhere.
X : No, I mean many providers.
Me : There are two forms of decentralisation - provision and control (i.e. authorities) ...

... what is happening is decentralisation of provision (i.e. cloud everywhere, at the edge) but under centralised authorities (Amazon, Alibaba, MSFT, Google etc).
X : What about decentralisation of control?
Me : Many companies working to a common standard ...

... that was the dream of OpenStack but they blew that on day one creating a collective prisoner dilemma. They are trying to recorrect this with K8s but the cloud has moved on, higher up the stack ...

... so, the idea of a marketplace of many different companies each having authority is ... wishful thinking by past vendors and clients they've hoodwinked. Maybe in 15-20 years we will get another go ... open source is a long game ...

... more likely is many points of provision i.e. companies offering EKS anywhere on a utility basis but under centralised authority e.g. AWS.

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MALUME ZANO
MALUME ZANO
@ZanoUrban
(PART 3) Angels - Izingelosi | Izithunywa of the 1st Sphere 🕯

[A Smallanyana Thread]

On Part 1 and 2, you will notice that we covered Angels that somehow also resemble human physical/ manifested features.

Part of the classic examples of how we as humans always depict these Celestial Beings through our works of art.

As we move up to the 1st Sphere of the Christian Angelology Hierarchy we get introduced to another breed of Izithunywa.

Let's Begin 📖

THRONES:

Also known as the Elders, they are a class of Celestial Beings mentioned by Paul the Apostle in Colossians 1:16, and they are also mentioned in the Book of Revelations as the 24 Elders.

They are the living symbols of God's justice and authority, symbolised as Thrones.

They are also associated with the Ophanim from the Jewish Angelic Hierarchy (Which we will still cover in detail within this series of Threads).

The Ophanim are referenced as Wheels seen in Ezekiel's vision of the Chariot in Ezekiel 1:15 - 21.

Also refer to Elijah's ascension.
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Jill Filipovic
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@JillFilipovic
This column by @ezraklein is very good and I agree with him 100% on policy -- we need a generous child allowance now. But I'm seeing this creeping argument on the left that it's just not important for women to work outside the home, and that's concerning.

Working 60 hours a week at two or three jobs? That's obviously awful. Being paid so poorly that you have no time for your family or leisure? That's not "dignity," that's exploitation. And it is single moms who bear the brunt of this.

But while the argument that at-home work is just as valuable as paid work may be morally correct, in our capitalist reality, not working outside of the home leaves women incredibly financially and physically vulnerable. It also leaves them isolated, depressed, and anxious.

wrote a whole book about this, but paid work is good for women. Not three jobs at $7.50 an hour to stay afloat. But work for pay, which offers a purpose outside of raising one's own children, and friends and coworkers and a $$ lifeline outside the nuclear family.

When women wind up financially dependent on men, good things do not follow. Of course there are individual stories of this working out just fine. But over the whole of a society, women as carers and men as earners is not a good system.
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