Search Results for "design"
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Showing 117 open source projects for "design"
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Apollo-11
Original Apollo 11 Guidance Computer (AGC) source code
...It is written in AGC assembly and reflects 1960s software engineering practices, complete with comments from the original programmers. The code is both a cultural artifact and a technical reference, illustrating how limited memory and processor constraints shaped algorithms and system design. Developers can examine navigation routines, guidance logic, and task scheduling in an environment with no luxury features—everything is explicit and resource-aware. The repository’s structure and documentation make it approachable for modern readers despite the archaic environment. It’s frequently used in education, talks, and explorations of software history to show how a landmark mission depended on disciplined code and verification. -
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rav1e
The fastest and safest AV1 encoder
rav1e is an open-source implementation of an encoder for the AV1 video codec, developed in Rust (with some assembly) by the community around Xiph Foundation. Its design philosophy is to start from a correct, minimal, and fast AV1 encoder — sacrificing some encoding speed/efficiency of reference encoders in exchange for simplicity, stability, and compilability across platforms — and then gradually improve. This makes rav1e particularly attractive for scenarios where you need AV1 encoding but care about build-time, portability, and maintenance overhead, or where the full-featured reference encoder might be prohibitively slow. ... -
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ReactOS
An operating system based on the best Windows NT design principles
ReactOS is an open source effort to develop a quality operating system that is compatible with applications and drivers written for the Microsoft Windows NT family of operating systems (NT4, 2000, XP, 2003). -
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PICSimLab - Prog. IC Simulator Lab.
PICSimLab is a realtime emulator for PIC, Arduino, STM32, ESP32, ...
PICSimLab is a realtime emulator of development boards with MPLABX/avr-gdb debugger integration. PICSimLab supports microcontrollers from picsim, simavr, uCsim, qemu-stm32, qemu-esp32, and gpsim. PICSimLab has integration with MPLABX/Arduino IDE for programming the microcontroller's boards. As the purpose of PICSimLab is to emulate real hardware it does not have any source code editing support. For code editing and debugging the same tools used for a real board should be used with PICSimLab,... -
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Minimal-GPSDO
A GPSDO with superior performance using a few cheap components
...This achieved the criteria. The current design is the same with a more elaborate power supply. It is more stable than the original, and regularly delivers better than 10MHz±1mHz. -
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BerserkArch
A bleeding-edge, security-centric Arch-based Linux distribution.
BerserkArch is a security-focused, performance-tuned Linux operating system (OS) based on Arch Linux, designed for developers, hackers, and technical users. A bleeding-edge, security-centric Arch-based Linux distribution crafted for hackers, developers, and nerds alike. Following the Arch Linux philosophy, it is designed to be highly customizable, allowing users to build their environment with only the components they need, rather than having a lot of pre-installed software like some other... -
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ZAPH
Tools and Z80 engine for creating adventure games. (RUST)
This is an exercise in some advance programming topics using a text adventure as the central result. This originally began as a project to recreate an old BASIC text adventure, on the ZX Spectrum, using Z80. After developing a very simple byte code VM to handle the game interactions, I realised that there was an opportunity to use some more advance techniques, which in turn can lead to some PC based tools. -
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ProximusDA OS Kernel project provides multi-threading communication between cores. It parallel distributed and implements tasks. "ProximusDA (Proximus Design Automation) GmbH was founded in Munich on July 17, 2008. The company's main focus is to develop and sell its Proximus software development tool. Proximus allows designers to evaluate early on which elements should be implemented in hardware and which in software. This knowledge considerably reduces both system development times and risks. ...
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Active Object real-time OS
AO RTOS is small real time OS based on Active Object concurrency model
AO-RTOS is a pure object-oriented small footprint real-time operating system for embedded devices. The project is using Active Object (or Actor) concurrency model and finite state machine (FSM) design template as implementation base. -
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ELENA Programming Language
an object-oriented language with late binding
ELENA is a general-purpose, pure object-oriented language with late binding. It promotes more object-oriented program design, reusable and more standardized code. The package includes compiler, IDE, ELENA libraries and samples -
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breadcomp80v1
An 8-bit puter on a breadboard
...It is not optimized (never meant to be), the CP/M3 port working on it is very crude and the bit-banging SPI over AY's I/O ports is terribly slow when it comes to accessing the SD Card adapter (C:). There are several awkwardness in the design, e.g., the first occurence of the ~HALT signal is disconnecting ROM, leaving only the RAM to be accessible by the CPU until RESET (actually, it's this feature that made CP/M bootable on it!). Of the 128kB of available RAM, only 96kB can be used, the upper 32kB is always the same (CP/M's BDOS and BIOS are there), the lower 32kB can be banked on and off by the CP/M BIOS. ... -
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PacMan2 - The Family - Network Edition - Arcade game - opensourceware version of Pacman with NEW DESIGN and LOTS OF DEVICES (program's engine has got script executer - Squirrel(R)), in 2D version, semi-3D version and under development fully 3D It can be played by 2 players at the same PC or in multiplayer mode over the LAN-network (TCP/IP protocol, uses sockets)
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Arduino ASCOM Focuser Pro DIY
Arduino Focuser, fully ASCOM complaint
myFocuserPro is an ASCOM and Moonlite compatible stepper motor telescope focus controller (DIY) based on Arduino Nano/Uno. A popular DIY ASCOM focuser with more than 121,000+ downloads. (c) Copyright Robert Brown 2014-2024. All Rights reserved. Permission is granted for personal and Academic use only. Spreadsheet to calculate what stepper motor to use. https://sourceforge.net/projects/arduinoascomfocuserpro2diy/files/Documentation/Nema-Stepper-Motors.xlsx/download -
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HelenOS
A microkernel-based multiserver operating system written from scratch.
...HelenOS is therefore flexible, modular, extensible, fault tolerant and easy to understand. HelenOS does not aim to be a clone of any existing operating system and trades compatibility with legacy APIs for cleaner design. Most of HelenOS components have been made to order specifically for HelenOS so that its essential parts can stay free of adaptation layers, glue code, franken-components and the maintenance burden incurred by them. -
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SpectralWorks
View, manipulate, analyze (LS fit, SVD, FT), and make figs of, spectra
...Graphics features allow composing Figures and export to postscript files which can be converted to pdf, imported into photoshop for rasterization, or used in page design software like Illustrator. -
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raspberry-pi-os
Learning operating system development using Linux kernel and Raspberry
...The repository is structured so that every lesson corresponds to a snapshot of the source code at that stage, making it easier for learners to follow the progression of kernel development. The design of the lessons emphasizes gradual learning, allowing readers without prior OS development experience to understand kernel internals. The project is still under active development and encourages community contributions to expand its lessons and improve its content. -
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OsEID
AVR based smartcard/token with ECC and RSA cryptography
AVR128DA /Atmega128 microcontroller based open source EID smartcard with RSA (512-2048) and ECC (prime192v1, prime256v1, secp384r1, secp521r1 and secp256k1) support. Compatible with MyEID card from Aventra. Supported in windows and linux by opensc package. Allow about 64KiB space for keys/certificates. PKCS#15 structure supported. USB token with CCID interface based on xmega128a4u with same features as card. High speed AVR multiple precision arithmetic: squaring, multiplication, exponentiation. -
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Specialist-S
8-bit home-made computer on Z80 CPU
This is a renaissance of the "Specialist" micro-computer published in the popular "Modelist-Constructor" magazine issue #2, 1987 by A. Volkov. The original design was used the Soviet i8080A analog - KR580IK80A (KR580VM80A), but this one is based on the Z80A CPU. Postfix "S" in the project name designates a "simple" design. -
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speccy3os
Message passing microkernel-based Operating System for ZX Spectrum +3e
This project is an attempt to design an message passing microkernel-based Operating System for the ZX Spectrum +3e computer equipped with ZXMMC mass storage device. It was made mostly for PoC purpose. -
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PinPog
Ping-Pong-like game in Assembly that works without OS
...Created by Tsoding, it serves as both a nostalgic recreation of the classic arcade game and a fun educational project demonstrating game development fundamentals such as collision detection, input handling, and frame-based rendering. It’s small in scope but clear in design, making it ideal for those learning C or exploring real-time interactive programming through games. -
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NBTV Design Tools
SW Tools + HW design example for Mechanical Narrow Band TV
This project contains useful software tools to create a NBTV (Narrow Band Television) video source (+audio, and optionally with color) on a classical 2-channel PC audio output. It also includes a document on a hardware example explained in details, as well as how to use software tools. -
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WFDOS
A multiplatform, DOS-like operating system
This project was started as an implementation of DOS for homebrew computers. Its design stresses simplicity, adaptability, and flexibility. The operating system is largely written in C, allowing it to more easily be ported to other targets. The initial implementation will be for the Intel 8086; however, there are plans to port it to architectures based on the Z80, ARM, and amd64 as well. -
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patient0
An Atari-ST floppy copier via parallel port
Primary design to backup Atari ST floppies on a Linux box via a simple ECP compliant cable, patient0 is a command line utility that could be extended for other platforms. -
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PPMScope
Microcontroller based PC Oscilloscope
PPMScope is a do-it-yourself oscilloscope with an open source design. The intent is that the project can be constructed by an electronics hobbiest using the instructions included. The design is a compromise between features and cost. The bandwidth is lower than a commercial scope, so it's use is limited to signals of 500 kHz and below. It's sample buffer is also smaller than a commercial scope, however sufficient for most oscilloscope functions. -
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JNode is a Java New Operating system Design Effort. JNode is a simple to use and install Java operating system for personal use on modern devices. Any java application runs on it, fast and safe. See our homepage for additional information.
