monocasa

6 ms·

31.
by monocasa 1mo ago
Optimized != optimal Optimal means there aren't any optimizations possible remaining. Are you seriously going to suggest that there aren't any potential optimizations left in the iPhone's mainboard?
32.
by monocasa 1mo ago
> Impedance matching requires you know what you are doing, and Altium will only take you so far. For the price, Altium/Protel has always been a poor deal for what you get software wise. Pretty much every high end board is designed u
33.
by monocasa 1mo ago
So, then how are today's pcb layout techs solving these Np-hard problems in your mind, armed only with Altium?
34.
by monocasa 1mo ago
Well, no, it's not. If anything, it's closer to the bin packing problem. The cost function isn't expressed in terms of lowest cost between nodes, but instead fitting all of the traces with the lowest board layer count while
35.
by monocasa 1mo ago
They're also NP-hard for the humans doing the majority of the work currently, meaning that good enough heuristics dominate as it is.
36.
by monocasa 1mo ago
It's got display port.
37.
by monocasa 1mo ago
The model works pretty well up to much larger systems than you'd expect. If a particular interrupt has a hard real time constraint, it sounds like a great candidate for a higher priority interrupt which will let it meet that requiremen
38.
by monocasa 1mo ago
Mostly tons of speculative state that needs to be unwound, combined with spectre mitigations, plus tons of committed state that the interrupt prologue needs to save, plus a huge song and dance to do that correctly (that FRED should help wit
39.
by monocasa 1mo ago
I've found that it doesn't matter except for something that you want at the absolute highest priority anyway, which then by definition doesn't need to jump through the same hoops because nothing can preempt it anyway.
40.
by monocasa 1mo ago
FWIW, just having a mask in the interrupt controller is normally enough to give you the same thing at the cost of a dozen or so cycles in the critical path. Basically you just keep a mask per priority that can be built up cheaply at init t
41.
by monocasa 1mo ago
They're real fun. I'm building a vacuum tube computer and want to use some somewhere, even though everything I've come up with is very shoehorned in. Best I've come up with is showing progress in the reset sequence. Alt
42.
by monocasa 1mo ago
This project uses the same AG1171 SLIC module; it's just not enough by itself and still requires a microcontroller (or at least non trivial logic) even before you get to processing the audio streams.
43.
by monocasa 1mo ago
If only we had that level of science funding.
44.
by monocasa 1mo ago
Edu saas is some of the worst crap I've ever had to deal with. It's one of those unfortunate cases of procurement not involving anyone who actually has to use it. I could absolutely see a combo of a super short session timeout wh
45.
by monocasa 1mo ago
Eh, I think we're going to run into the same issues we're seeing in software. That is, junior and lower status positions (so SDETs in software, paralegals in law) are rapidly being downsized, and that's going to have a big i
46.
by monocasa 1mo ago
Texas was bussing the Venezuelan migrants out of state to blue cities and pocketing a lot of the money that was to be used for integrating the migrants. That's how places like Denver ended up with 40k Venezuelan migrants and little f
47.
by monocasa 1mo ago
If anything, they've seemed to have gotten cheaper.
48.
by monocasa 1mo ago
Basically for Telum II, (I don't know what changed here from Telum III, the core under discussion with the ARM decoders) each CPU core has a giant 36MB L2 cache. Then, rather than a discrete L3 cache, the cores keep track of L2 reside
49.
by monocasa 1mo ago
And in fact it was basically a Cell PPE with a larger vector unit strapped to the side of it.
50.
by monocasa 1mo ago
> On the flipside, there is the theory (I think even Copetti brings it up in their XBox 360 Architecture breakdown [0]) that IBM using the Cell PPE for the 360's tri-cores left a sour taste in Toshiba, but more-so Sony's mouths
51.
by monocasa 1mo ago
Yeah, their cache work is undeniably really cool. That being said I think it's a natural consequence of the difference between a mainframe and commodity servers. A mainframe is going to be running pretty disparate workloads simultaneo
52.
by monocasa 1mo ago
To be fair, IBM did this in the 90s with the PowerPC 615, which had PowerPC and x86 decoders on the same core.
53.
by monocasa 2mo ago
They licensed several ARM IP blocks.
54.
by monocasa 2mo ago
They're absolutely keeping the digitized copies. They're not going to just train a single model.
55.
by monocasa 2mo ago
At the possible expense of just linking every page of their dark ages saga, The Chief Executive's handbook is somehow even more mask off 'but really, just absolutely fuck that guy'. https://about.iceland.co.uk&#x2F
56.
by monocasa 2mo ago
It came from GF3, which had full vertex and pixel shaders. Also, the GF4MX was just a GeForce256 in a trenchcoat, and didn't have vertex shaders (at least exposed to software, the T&L engine was still a vertex shader like engine, o
57.
by monocasa 2mo ago
> which was one of the rumored reasons for removing 16-bit NTVDM support They already had a 16-bit software emulator for running NTVDM on other archs. Apparently the real reason was they wanted to drop some software compatibility restric
58.
by monocasa 2mo ago
That's why I put 'worked for free' in quotes like that.
59.
by monocasa 2mo ago
HP proper. It was a PA-RISC they were targeting. https://cseweb.ucsd.edu/classes/sp00/cse231/dynamopldi.pdf
60.
by monocasa 2mo ago
> I agree that 16-bit/32-bit variable length would struggle to beat x86. But I suspect it could have gotten close, simply because x86 wastes a huge amount of its advantage on legacy cruft. I'm saying the opposite. Maybe some t

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