Hacker News: bsorbo

New comment by bsorbo in "1500 Archers on a 28.8: Network Programming in Age of Empires and Beyond (2001)"

bsorbo — Mon, 16 Jan 2023 14:50:59 +0000

Age of Empires 2: Definitive Edition consistently de-syncs when playing across a M1 Mac (using Windows 11 Arm or Crossover) and an x86 machine, and I suspect the difference in floating point behavior described here is the culprit: https://developer.apple.com/documentation/apple-silicon/addr...

New comment by bsorbo in "It’s possible to pay $150 in taxes on an income of $150K"

bsorbo — Sun, 13 Jun 2021 21:20:12 +0000

Adding onto this, this article compares various approaches to getting money “early” out of a 401k/tIRA (Roth conversion ladder as said here, 72t SEPP’s, early withdrawal penalty), and has the surprising conclusion that even the “just pay the 10% penalty” comes out ahead of regular taxable contributions, at least in some situations.

https://www.madfientist.com/how-to-access-retirement-funds-e...

New comment by bsorbo in "The six-year-old iPhone 6S will get iOS 15"

bsorbo — Sun, 13 Jun 2021 15:47:27 +0000

Also worth calling out that the even older (2014) iPad Air 2 will be supported by iPadOS 15. It is the lone A8-series device with 2 GB of Ram.

New comment by bsorbo in "Apple’s Mac Chip Switch Is Double Trouble for Intel"

bsorbo — Fri, 12 Jun 2020 22:38:06 +0000

Some analysts (including Gurman) have pretty consistently called out 2020 as “the” year for a couple years now: https://www.bloomberg.com/news/articles/2018-04-02/apple-is-...

Show HN: iPhone 6s Battery Replacement before/after [video]

bsorbo — Mon, 05 Mar 2018 06:15:09 +0000

Article URL: https://www.youtube.com/watch?v=qCD_psdhCuU

Comments URL: https://news.ycombinator.com/item?id=16519130

Points: 4

# Comments: 0

New comment by bsorbo in "Use OpenGL to get more RAM"

bsorbo — Sun, 24 Apr 2016 13:39:47 +0000

While the readme does state this (could be) a joke, this unfortunately isn't possible with PCI-e today:

Motherboards only support directly accessing a (up to) 256 MB segment of VRAM directly from the CPU. This is the BAR1 space/aperture space.

So attempts to create allocations larger than that that are resident in VRAM but also accessible from the CPU will land in system memory, in order to ensure they are accessible from the CPU. Graphics drivers will either have the GPU read the data from system memory, or will do hidden copies to the GPU when they detect the resource is bound, etc.

The author sort of suspects this could be happening:

"There is no guarantee that the persistently mapped buffer technique actually references video memory. The worst case it's shadow memory and this actually wastes memory."

New comment by bsorbo in "A9 Is TSMC 16nm FinFET and Samsung Fabbed"

bsorbo — Mon, 28 Sep 2015 20:38:10 +0000

I'm guessing the frequencies (performance) are the same, but it's possible the Samsung process is able to run the same frequencies at lower voltages.

New comment by bsorbo in "The Modern C++ Library for a Modern Windows"

bsorbo — Sat, 19 Jul 2014 23:34:17 +0000

This seems really promising, can't say I would miss all of the ^ (hat) usage for Modern Windows APIs.

I wonder how he intends to wrap/change the DirectX APIs. AFAIK Direct2D, WIC, DirectComposition are already native COM-based APIs, much like Direct3D.

New comment by bsorbo in "How Apple hides new functionality in iOS: isYoMamaWearsCombatBootsActive"

bsorbo — Fri, 13 Sep 2013 05:37:52 +0000

"Purple" was one of the code names for the first iPhone - http://allthingsd.com/20120803/apples-scott-forstall-on-how-...

I've seen PurpleEventCallback show up in different stacks.