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@@ -7,8 +7,8 @@ author: "Wouter van Oortmerssen"
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handle: wvo
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post_id: "1651282559287042048"
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date: 2023-04-26
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archived: 2026-08-23
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draft: true
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archived: 2026-08-24
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draft: false
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tags:
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- archive
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- twitter
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+2
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@@ -7,8 +7,8 @@ author: "NOTimothyLottes"
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handle: NOTimothyLottes
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post_id: "1651268028795961344"
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date: 2023-04-26
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archived: 2026-08-23
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draft: false
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archived: 2026-08-24
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draft: true
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tags:
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- archive
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- twitter
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@@ -1,30 +1,66 @@
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---
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title: "For anyone tuning in now, SPC is kind of like a Pico8, but instead of being a portable fantasy console, SPC turns the Steam Deck into an actual console for exclusive GPU assembly projects."
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title: "SPC: Left off with KEY and GAMEPAD input GPU-accessable."
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type: archive
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source: twitter
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source_url: "https://x.com/NOTimothyLottes/status/1687257354490818561"
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source_url: "https://x.com/NOTimothyLottes/status/1687250591813079041"
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author: "NOTimothyLottes"
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handle: NOTimothyLottes
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post_id: "1687257354490818561"
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date: 2023-08-04
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archived: 2026-08-23
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draft: true
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post_id: "1687250591813079041"
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date: 2023-08-03
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archived: 2026-08-24
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draft: false
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tags:
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- archive
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- twitter
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- NOTimothyLottes
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description: "For anyone tuning in now, SPC is kind of like a Pico8, but instead of being a portable fantasy console, SPC turns the Steam Deck into an actual console for exclusive GPU assembly projects."
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description: "SPC: Left off with KEY and GAMEPAD input GPU-accessable."
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in_reply_to: ""
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---
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## Source
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- URL: https://x.com/NOTimothyLottes/status/1687257354490818561
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- URL: https://x.com/NOTimothyLottes/status/1687250591813079041
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- Author: NOTimothyLottes (@NOTimothyLottes)
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- Posted: 2023-08-04 00:21:15
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- Posted: 2023-08-03 23:54:23
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## Thread
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**1/**
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SPC: Left off with KEY and GAMEPAD input GPU-accessable. NOP design, no functions, no API, just a fixed VA address and data format to read, dead easy.
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**2/**
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Wrote some console data dumping to aid in bringing up HID parsers for Deck and three generations of PlayStation controllers. Apparently XBox controllers aren't HIDs so not sure how one is supposed to access those.
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**3/**
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Supporting hot plug was a bit of a mess, just trying to open devices every second. Adding open devices to an epoll. {Product, vendor} isn't enough to ID a device, too much aliasing, so I use packet size as well.
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**4/**
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Open devices with matching packet size get set in a bit array, and I collect up to 4 of those device outputs to sent to the GPU. Special logic to always place Steam Deck controls last to make docking work well.
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**5/**
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I'll have to tackle audio at some point, but I'm skipping networking for version 1. But otherwise SPC is good to move on to the next step, which is to build out the GPU side assembler & data editor. Which will be written in binary at first.
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**6/**
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Project is roughly 2000 lines of C at this point. With no includes. Anyone have any suggestions for hosting let me know. Source will be released.
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**7/**
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For anyone tuning in now, SPC is kind of like a Pico8, but instead of being a portable fantasy console, SPC turns the Steam Deck into an actual console for exclusive GPU assembly projects. The way consoles had been done before silly portability became the only focus.
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@@ -9,82 +9,4 @@ tags:
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- NOTimothyLottes
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---
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- [[archive/threads/NOTimothyLottes/2022-11-04-vulkan-1500-lines-of-overhead-including-header]]
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- [[archive/threads/NOTimothyLottes/2022-11-05-19-GPU-Programming-Tip-Line-Thread]]
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- [[archive/threads/NOTimothyLottes/2022-11-08-example-of-bind-everything-once-layout-aliasing]]
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- [[archive/threads/NOTimothyLottes/2022-11-09-if-only-pc-vendors-with-open-isas-amd-intel-would]]
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- [[archive/threads/NOTimothyLottes/2022-11-13-my-prefered-method-of-managing-application-data]]
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- [[archive/threads/NOTimothyLottes/2022-11-30-explicit-packed-16-bit-code-fsr1-example-https]]
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- [[archive/threads/NOTimothyLottes/2023-04-26-can-make-a-custom-forth-to-binary-in-a-few-k]]
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- [[archive/threads/NOTimothyLottes/2023-06-30-nothing-oriented-programming-nop-where-the-goal]]
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- [[archive/threads/NOTimothyLottes/2023-08-03-spc-using-8-deep-swap-all-aliasing-same-bo-image]]
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- [[archive/threads/NOTimothyLottes/2023-08-04-for-anyone-tuning-in-now-spc-is-kind-of-like-a]]
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- [[archive/threads/NOTimothyLottes/2023-08-06-the-next-challenge-is-overscan-safety-since-real]]
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- [[archive/threads/NOTimothyLottes/2023-08-06-yeah-perhaps-wildly-alien-but-for-those-who-grew]]
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- [[archive/threads/NOTimothyLottes/2023-08-07-crt-emulation-on-lcds-can-be-hard-for-example-its]]
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- [[archive/threads/NOTimothyLottes/2023-08-18-spc-last-crt-shader-was-broken-corrected-it-its]]
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- [[archive/threads/NOTimothyLottes/2023-08-18-the-subpix-version-is-definitely-better-because]]
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- [[archive/threads/NOTimothyLottes/2023-12-15-long-thread]]
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- [[archive/threads/NOTimothyLottes/2023-12-16-if-there-is-anything-to-learn-for-programming-it]]
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- [[archive/threads/NOTimothyLottes/2023-12-19-multi-session-is-nice-since-the-binary-auto]]
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- [[archive/threads/NOTimothyLottes/2024-02-13-once-upon-a-time-not-up-any-more-lots-of-color]]
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- [[archive/threads/NOTimothyLottes/2024-04-06-on-https-mastodon-gamedev-place-notimothylottes]]
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- [[archive/threads/NOTimothyLottes/2024-05-04-it-was-only-later-when-systems-forced-c-abi]]
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- [[archive/threads/NOTimothyLottes/2024-11-16-that-line-of-thinking-is-universal-solution-to]]
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- [[archive/threads/NOTimothyLottes/2024-11-19-after-vk-device-is-open-i-signal-a-background]]
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- [[archive/threads/NOTimothyLottes/2024-11-21-32-oh-damn-32-should-probably-stop-now-until-next]]
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- [[archive/threads/NOTimothyLottes/2024-12-15-texel-buffer-is-needed-for-whatever-formats-one]]
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- [[archive/threads/NOTimothyLottes/2024-12-16-also-i-wouldnt-just-modify-an-existing-compiler]]
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- [[archive/threads/NOTimothyLottes/2024-12-16-then-there-are-rough-edges-to-texel-buffer]]
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- [[archive/threads/NOTimothyLottes/2024-12-21-not-sure-if-this-is-the-end-of-this-story-yet-but]]
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- [[archive/threads/NOTimothyLottes/2025-04-30-3-i-got-side-tracked-by-building-a-language-that]]
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- [[archive/threads/NOTimothyLottes/2025-04-30-i-laugh-when-people-say-c-is-like-assembly-they]]
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- [[archive/threads/NOTimothyLottes/2025-06-29-many-of-my-forth-like-languages-worked-via-nested]]
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- [[archive/threads/NOTimothyLottes/2025-07-23-i-dont-use-standard-c-libs-or-anything-like-that]]
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- [[archive/threads/NOTimothyLottes/2025-07-31-people-claim-assembly-is-hard-a-good-counter-to]]
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- [[archive/threads/NOTimothyLottes/2025-08-01-also-run-from-gpu-side-editing-tools-for-shader]]
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- [[archive/threads/NOTimothyLottes/2025-08-02-so-far-the-plan-is-to-have-the-data-read-write]]
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- [[archive/threads/NOTimothyLottes/2025-11-17-i-wish-everyone-would-just-adopt-reversed-with]]
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- [[archive/threads/NOTimothyLottes/2026-01-14-can-do-that-but-at-least-these-kinds-of-systems]]
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- [[archive/threads/NOTimothyLottes/2026-03-08-ill-add-one-conspiracy-theory-for-everyone]]
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- [[archive/threads/NOTimothyLottes/2026-05-23-most-crap-o-grammers-today-in-the-user-space-c]]
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- [[archive/threads/NOTimothyLottes/2026-05-29-https-trickybitsblog-github-io-2024-02-25]]
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- [[archive/threads/NOTimothyLottes/2026-05-30-renovating-cpu-clock-code-im-assuming-x86-64-tsc]]
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- [[archive/threads/NOTimothyLottes/2026-05-31-hits-the-easy-to-debug-cpu-or-gpu-stuff-in-the]]
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- [[archive/threads/NOTimothyLottes/2026-05-31-no-debugger-debug-console-printf-style-prior]]
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- [[archive/threads/NOTimothyLottes/2026-06-01-that-plus-an-oscilloscope-this-is-the-way]]
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- [[archive/threads/NOTimothyLottes/2026-06-01-windows-thread-priority]]
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- [[archive/threads/NOTimothyLottes/2026-06-02-for-windows-trying-to-standardize-on-highest]]
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- [[archive/threads/NOTimothyLottes/2026-06-02-its-unfortunate-there-isnt-an-easy-way-to-map-the]]
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- [[archive/threads/NOTimothyLottes/2026-06-03-back-running-640x480-on-my-vga-crts-to-prep-for]]
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- [[archive/threads/NOTimothyLottes/2026-06-10-steamos-init]]
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- [[archive/threads/NOTimothyLottes/2026-06-13-cross-compilation-is-up-just-like-on-windows-with]]
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- [[archive/threads/NOTimothyLottes/2026-06-13-nanorc-done-and-back-to-actual-programming-with]]
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- [[archive/threads/NOTimothyLottes/2026-06-13-the-glibc-implementation-would-do-that-i-bypass]]
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- [[archive/threads/NOTimothyLottes/2026-06-14-on-linux-i-do-speculative-pinning-of-cpu-memory]]
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- [[archive/threads/NOTimothyLottes/2026-06-26-quick-summary-of-why-not-pselect-ppoll-epoll]]
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- [[archive/threads/NOTimothyLottes/2026-06-27-deterrent-to-alsa-is-just-parsing-through-snd-pcm]]
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- [[archive/threads/NOTimothyLottes/2026-06-29-alsa-hell-month-continues-remember-it-might-be]]
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- [[archive/threads/NOTimothyLottes/2026-06-29-eventually-figure-out-enough-to-get-aplay-to]]
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- [[archive/threads/NOTimothyLottes/2026-06-30-working-on-the-linux-thread-priority-code-linux]]
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- [[archive/threads/NOTimothyLottes/2026-07-01-did-manage-to-get-alsa-to-function-without-sndrv]]
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- [[archive/threads/NOTimothyLottes/2026-07-01-haha-damn-i-thought-i-had-a-great-idea-for-wine]]
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- [[archive/threads/NOTimothyLottes/2026-07-01-linux-by-default-doesnt-allow-any-increase-in]]
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- [[archive/threads/NOTimothyLottes/2026-07-02-settings-im-using-for-snd-pcm-sw-params-for-alsa]]
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- [[archive/threads/NOTimothyLottes/2026-07-02-yuck-starting-on-wdm-ks-audio-interface-for-win32]]
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- [[archive/threads/NOTimothyLottes/2026-07-03-following-the-succession-thanks-of-re-trying]]
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- [[archive/threads/NOTimothyLottes/2026-07-03-so-instead-of-the-massive-mmdeviceapi-h-mess-ware]]
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- [[archive/threads/NOTimothyLottes/2026-07-04-wines-iaudioclient-getdeviceperiod-returns-53333]]
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- [[archive/threads/NOTimothyLottes/2026-07-06-vulkan-starts-with-the-ping-pong-between-getting]]
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- [[archive/threads/NOTimothyLottes/2026-07-08-next-pre-device-opening-activity-is-choosing]]
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- [[archive/threads/NOTimothyLottes/2026-07-10-oh-i-probably-have-a-lot-to-learn-here-building]]
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- [[archive/threads/NOTimothyLottes/2026-07-11-rethinking-vulkan-queue-choice-traditional-double]]
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- [[archive/threads/NOTimothyLottes/2026-07-13-another-quality-of-life-change-exit-with-error]]
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- [[archive/threads/NOTimothyLottes/2026-07-14-example-usage-after-clean-up]]
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- [[archive/threads/NOTimothyLottes/2026-07-14-so-i-can-liter-error-checks-around-stuff-with]]
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- [[archive/threads/NOTimothyLottes/2026-07-15-sar-on-a-control-word-can-in-theory-grab-3-values]]
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- [[archive/threads/NOTimothyLottes/2026-07-17-oh-f-it-the-urge-to-drop-the-c-baggage-was-too]]
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- [[archive/threads/NOTimothyLottes/2026-07-18-i-realized-at-some-point-i-can-have-most]]
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- [[archive/threads/NOTimothyLottes/2026-07-19-the-aim-of-course-keep-the-stuff-that-doesnt-need]]
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- [[archive/threads/NOTimothyLottes/2026-07-22-a-language-that-you-author-in-a-compressed-space]]
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- [[archive/threads/NOTimothyLottes/2026-08-02-re-fpga-land-alus-im-firmly-distracted-by-an]]
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@@ -14,6 +14,3 @@ How to read a folder: [[notes/How threads are organized]].
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Example of the note shape (single spine, no branches): [[archive/threads/How to archive a thread]]
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- [[archive/threads/NOTimothyLottes]]
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- [[archive/threads/VPCOMPRESSB]]
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- [[archive/threads/VictorTaelin]]
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- [[archive/threads/winning_tactic]]
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