Mastodawn

Полезные утилиты RTT Viewer и System Viewer

Хорошие инструменты для отладки встраиваемого ПО микроконтроллеров давно стали делом привычным. Возможности таких инструментов определяются как архитектурой ядра, так и выбором отладчика. Рассмотрим три понятия: DAP (Debug access port), ITM (Instrumentation Trace Macrocell) и RTT (Real-Time Transfer). Всё это «механизмы» позволяющие выводить отладочную информацию в том или ином виде. DAP – это аппаратный блок, который дает доступ к шинам и ядру микроконтроллера. ITM – это специальный блок внутри Cortex-M (начиная с M3 и выше), предназначенный для сообщений с минимальными потерями времени. RTT – технология компании SEGGER, построенная на использовании кольцевого буфера внутри RAM. Именно о ней и пойдет речь в публикации.

https://habr.com/ru/articles/1011650/

#RTT_Viewer #System_Viewer #rtos #программирование_микроконтроллеров #printf

Полезные утилиты RTT Viewer и System Viewer

Хабр

GripNews Mar 12

🌗 GitHub - carlini/printf-tac-toe：僅靠單次 printf 呼叫實現的井字遊戲
➤ 當格式化輸出成為一種圖靈完備的程式語言
✤ https://github.com/carlini/printf-tac-toe
本項目展示了一個極致的 C 語言程式設計技巧：如何僅通過單一的 `printf` 函式呼叫來實現完整的井字遊戲邏輯。作者利用 `printf` 格式化字串中不為人知的特性（特別是 `%n` 與位置參數指定符），將記憶體操作與邏輯運算轉化為字串處理，不僅實現了圖靈完備的計算模型，還編寫了一個可互動的遊戲。這項作品曾入選 IOCCC（國際 C 語言混淆程式碼大賽），是研究底層記憶體操作與編譯器行為的經典案例。
+ 這簡直是瘋狂的藝術！我從未想過 `%n` 可以被這樣濫用，這已經超越了代碼，簡直是字串上的數位邏輯電路。
+ 這是計算機科學領域的奇蹟。雖然實用性為零，但作者對 `printf` 參數處理與記憶體位址存取的洞察力令人嘆為觀止，這確實是駭客精神的巔峯。
#C 語言 #IOCCC #代碼混淆 #printf 導向編程

GitHub - carlini/printf-tac-toe: tic-tac-toe in a single call to printf

tic-tac-toe in a single call to printf. Contribute to carlini/printf-tac-toe development by creating an account on GitHub.

GitHub

N-gated Hacker News Mar 12

GitHub's latest masterpiece: a Tic-Tac-Toe #game powered by the sheer #complexity of a single `printf` call. 🤖💻 Because who wouldn't want to pit their wits against a glorified string formatter in the most convoluted way possible? 😅🎉
https://github.com/carlini/printf-tac-toe #GitHub #TicTacToe #printf #programming #fun #HackerNews #ngated

GitHub - carlini/printf-tac-toe: tic-tac-toe in a single call to printf

tic-tac-toe in a single call to printf. Contribute to carlini/printf-tac-toe development by creating an account on GitHub.

GitHub

Hacker News Mar 12

Printf-Tac-Toe

https://github.com/carlini/printf-tac-toe

#HackerNews #PrintfTacToe #Printf #GameDev #Coding #FunTech

GitHub - carlini/printf-tac-toe: tic-tac-toe in a single call to printf

tic-tac-toe in a single call to printf. Contribute to carlini/printf-tac-toe development by creating an account on GitHub.

GitHub

エミリーSEレクト Mar 7

Ｃ言語基礎講座　第1回ハロープログラム　全31回

https://www.emilyselect.com/%ef%bd%83%e8%a8%80%e8%aa%9e%e5%9f%ba%e7%a4%8e%e8%ac%9b%e5%ba%a7%e3%80%80%e7%ac%ac1%e5%9b%9e-%e3%83%8f%e3%83%ad%e3%83%bc%e3%83%97%e3%83%ad%e3%82%b0%e3%83%a9%e3%83%a0%e3%80%80%e5%85%a831%e5%9b%9e/?feed_id=4813&_unique_id=69ac294c0c308&Mastodon

#main #printf #C言語基礎・入門 #C言語基礎・入門 #main #printf

13 Feb 23

Running in Printf https://hackaday.com/2026/02/22/running-in-printf/
#SoftwareDevelopment #SoftwareHacks #Printf #Turingcomplete

Running In Printf

You may or may not know, but printf is a Turing-complete language, once you exploit all the strange and wonderful format characters in it (especially %n). But who has time to write code as printf m…

Hackaday

Hackaday Feb 23

Running in Printf

https://fed.brid.gy/r/https://hackaday.com/2026/02/22/running-in-printf/

Hacker News Jan 13

Implementing a web server in a single printf() call (2014)

https://tinyhack.com/2014/03/12/implementing-a-web-server-in-a-single-printf-call/

#HackerNews #Implementing #a #web #server #in #a #single #printf() #call #2014 #webdevelopment #programming #hackernews #tinyhack

Implementing a web server in a single printf() call

A guy just forwarded a joke that most of us will already know Jeff Dean Facts (also here and here). Everytime I read that list, this part stands out: Jeff Dean once implemented a web server in a single printf() call. Other engineers added thousands of lines of explanatory comments but still don't u

Tinyhack.com

N-gated Hacker News Jan 11

✨🎨 Breaking news: yet another tech genius spends holiday break inventing a #printf #hack for #HLSL because, clearly, what the world needs now is more ways to debug shaders. 🙄 Meanwhile, in a shocking turn of events, we discover people might actually want useful tools. Who would've guessed?! 💡🔍
https://www.abolishcrlf.org//2025/12/31/Printf.html #technews #shaderdebugging #innovation #HackerNews #ngated

An Experimental Approach to printf in HLSL

Bringing the best form of debugging to shaders!

Abolish \r\n

Hacker News Jan 11

An Experimental Approach to Printf in HLSL

https://www.abolishcrlf.org//2025/12/31/Printf.html

#HackerNews #Experimental #HLSL #Printf #Graphics #Programming #Shader #Techniques

An Experimental Approach to printf in HLSL

Bringing the best form of debugging to shaders!

Abolish \r\n