The goat emoji's byte sequence, F0 9F 90 90, turns out to be valid Intel 8086 machine code. GloriousCow noticed 90h is the 'nop' instruction, while F0 9F form 'lock lahf', which essentially does nothing on an 8088 or 8086. Many emojis share the F0 9F prefix followed by two more bytes that can also be valid instructions. GloriousCow built a Hello World program entirely from emoji characters: save the string as a .com file and run it in DOSBox with CPU type set to 8086 to print HELLO at the bottom-right of the screen. A more elaborate VGA demo made from emojis is also available.
Source: https://hackaday.com/2026/11/06/the-goat-emoji-is-100-valid-machine-code-and-it-doesnt-stop-there. 8 Sync News only summarizes and links out; content copyright belongs to the authors and original sources.
Read the news here, practice coding, follow structured courses and train for IELTS on our sibling products — all connected through one 8 Sync account.
The ecosystem home: product overviews, blog and full pricing.
ExploreLearn along a clear roadmap: videos, auto-graded quizzes, certificates and mentors who ship for a living.
View the roadmap1,000 DSA problems in Vietnamese, auto-graded across 7 languages — many FREE, right in your browser.
Practice for freeAI grading for all four IELTS skills with detailed rubric feedback.
Try it freeA 22 MB AI IDE for Vietnamese devs.
Download freeOrganizational memory for AI agents.
ExploreAI that staffs your Fanpage and qualifies leads for you.
Try itMeatloaf là thiết bị ESP32 cho phép máy tính Commodore truy xuất file qua cổng serial IEC, được tạo bởi [jaime]. Thiết bị này kết nối với dịch vụ chỉ đến file bất kể vị trí lưu trữ, bao gồm cả bộ nhớ cục bộ hay URL đang hoạt động. Không cần cấu hình trên Meatloaf, mọi thao tác đều thực hiện từ máy Commodore nếu người dùng biết URL. Đáng chú ý, Meatloaf có thể phân tích file archive lồng nhau và cung cấp chúng tựa như ổ mềm thời kỳ đó. Dự án có sẵn trên GitHub cho người muốn tìm hiểu sâu hơn về giao diện serial.
Thiết bị Meatloaf giúp Commodore máy tính cũ truy cập tập tin hiện đại qua cổng serial, giải quyết vấn đề kết nối giữa công nghệ cũ và mới.
A Qt6 application for wrangling CP/M disk images. Contribute to drdpj/CPMDiskWrangler development by creating an account on GitHub.
A custom RISC-V CPU was built on an FPGA and used to run a retro gaming console. The system runs on a Terasic DE0-Nano board with 32 MB of RAM and boots into a launcher with 32 games. A 64×32 display limitation keeps the same aspect ratio as the original DOOM while sustaining 45 FPS. The project writeup covers bare metal design, the CPU itself, video signal timing, and a Wolfenstein-style raycaster implementation.
Hackaday announced the winners of its 2026 Retrocomputing Challenge, with a $150 DigiKey gift certificate awarded as the prize for the top three. First place went to a vacuum tube computer built from 460 Russian 6N3P dual-triodes and 1840 1N33 diodes, running an 8-bit NOR-gate design with 16 instructions. Second was the Microtronic Phoenix, an Atmel-based emulator of the Busch Microtronic that runs the original firmware, retrieved using a logic analyser. Third was the Tiny Sieve, a Lehmer number sieve using 30 ATtiny412 chips and an RP2040 controller. Honorable mentions spanned categories like Retro-Modern, Modern Retro, Old Iron, and Coding Like It's 1999.
A fun experiment where I back-port all the improvements we've made to chess engines over the last 30 years and run it on a 1996 Pentium Pro to see what we could have done if only we knew more at the time.
The Commodore 1600 VICModem was perhaps the first phone modem to sell for under $100. Commodore outsourced the design to Anchor Automation, which built it around a Motorola MC14412 modem chip plus six other chips. The chip could technically handle 600 baud, but the modem was rated for 300, while rival 300 baud modems cost at least twice as much and 1200 baud units ran $600 or more. To save money it connected directly to the phone line but couldn't dial for you, so users had to dial manually and plug the handset cord into the modem. Commodore also bundled a Y cable called the VIC-1605 to work around handsets without modular jacks.
Enlyth đã khám phá xem một file thực thi GUI Windows từ năm nào vẫn có thể chạy được trên Windows 11. Phiên bản Freecell từ năm 1993 sử dụng Win32s vẫn hoạt động, nhưng file lâu nhất chính thức chạy được là ứng dụng CD player từ Windows NT 3.1 tháng 11 năm 1992, hoạt động nhờ việc gọi một DLL vẫn tồn tại. Nhiều file nhị phân NT 3.1 khác gặp lỗi do API không tương thích. Với WINE VDM, ứng dụng Reversi từ Windows 1.01 (tháng 11 năm 1985) vẫn có thể chạy trên Windows 11.
Bài viết này cho thấy khả năng tương thích ngược ấn tượng của Windows 11 với các ứng dụng từ thời sơ khai của hệ điều hành.
A developer named TheRasteri ported a Flash game to run on CGA graphics on the IBM 5150. CGA text mode wasn't built for the detail of a 2000s Flash game, so he hacked the MC6845 CRT controller chip, the same chip that lives on a CGA card. By swapping character height on the fly with custom assembler, he created the equivalent of a 160 x 86 pixel window in CGA text mode. The project uses Open Watcom V2, is coded as a large state machine, and is tested across a wide range of DOS machines to catch bugs.
Loading comments…