withlogic
2.1K posts

withlogic
@withlogic
information security, homebrew development, emulator enthusiast, sysadmin of sorts.
เข้าร่วม Haziran 2009
892 กำลังติดตาม160 ผู้ติดตาม

I ported Mac OS X to run natively on the Nintendo Wii - an idea I had over 10 years ago that I finally pursued last year.
Here’s how I pulled it off:
bryankeller.github.io/2026/04/08/por…

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@RandalLinden @madlittlepixel Are you going to be at QuakeCon this year?
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@madlittlepixel Yes, it's shipping out and I hope you enjoy the final product!
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2026 has 15 long weekends if you use your PTO right:
Jan 1-4 (4 days) - 1 PTO
Jan 17-20 (4 days) - 1 PTO
Feb 13-16 (4 days) - 1 PTO
Apr 3-6 (4 days) - 1 PTO
May 22-25 (4 days) - 1 PTO
Jun 19-22 (4 days) - 1 PTO
Jul 3-6 (4 days) - 1 PTO
Sep 4-7 (4 days) - 1 PTO
Oct 9-12 (4 days) - 1 PTO
Nov 7-11 (5 days) - 2 PTO
Nov 11-15 (5 days) - 2 PTO
Nov 26-29 (4 days) - 1 PTO
Dec 23-27 (5 days) - 2 PTO
Dec 25-28 (4 days) - 1 PTO
Dec 30-Jan 3 (5 days) - 2 PTO
Never let a job make you feel bad for using PTO
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@ID_AA_Carmack @blisstweeting This is an absolutely amazing thing to discover. Thanks!
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@blisstweeting There is a setting to have it run in the background — that’s where I noticed it.
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Who's up for some old school slot car racing?
#retro #nostalgia #slotcar #slotcarracing #fastcars #heman
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Is piracy a prerequisite for a striving homebrew scene? (Opinion, 2016)
wololo.net/2016/01/08/is-…
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I can't imagine anything bad that might come from this
Scott Hanselman 🌮@shanselman
Amazing! Free Code Signing for Open Source software signpath.org
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Hand Cannon: Janky Reality is now available on Steam and Itch #screenshotsaturday #gamedev #megaman #platformer #pixelart #monogame #indiegames
allmylinks.com/suicidal-robot…


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@gabsmashh I love finding things like this in the wild. But we all know you did it.
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@theSiliconSiren Planning on having them make an appearance at a future VCF? It was fun seeing them!
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Some people chase love. I chase 68040s!
Finally scored my NeXT dream duo: the Cube & Color Turbo 🖤
#NeXT #retrocomputing #vintagecomputing #retro #SteveJobs #Apple #techhistory #pcmr #hardware #VCF
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Been optimizing my ASS OFF now that jnmartin has pushed all of his progress on his Star Fox 64 Sega Dreamcast port to a private GitHub repo to collaborate with a bunch of us DC devs before release.
MAN this thing is HIGHLY optimized already... We're essentially running a high-level emulator for the N64's RSP coprocessor, doing graphics transforms, matrix math, and display list conversions not only on the main SH4 CPU, but also sitting atop a high-level OpenGL driver, in real-time.
Not only that, but once again, we're doing all audio synthesis and mixing also on the main SH4 CPU, so this thing is doing a literal asston on the main CPU with what might seem like a relatively straightforward port.
99% of the time, everything runs flawlessly, but when you drop a bomb on a shitfest of enemies in a densely populated area, as with the N64 original, the FPS can dip momentarily.
Here's a direct hardware capture of me testing a new SH4 optimized routine out for gainz on my Sega Dreamcast... this mofo is meant be used for one-off 3D vector transforms by a single matrix which has not been preloaded into the XMTRX FP register matrix back-bank.
Rather than doing a full 4x4 load on the matrix just to do a single 4D transform via the FTRV instruction, we're simply peforming 3 3D dot products against a single 3D vector, allowing us to pipeline the loads, dot products, and store operations better than doing a load all at once followed by a transform, and we aren't wasting a lane on the FPU for a 0.0f W component!
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Wow, @DonToliver seems to enjoy my hacks and GTA San Andreas port (github.com/TheOfficialFlo…) on the PS Vita 🤯

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