RealXV6 vs MicroController Learning Lab

【 Bring Lions' Commentary to Life 】 If you are studying operating systems, you know the legend: Lions' Commentary on UNIX 6th Edition. It is the "Red Book" that taught a generation of hackers how an OS kernel truly works. Now, you can bring that bible to life on your iOS device. 【 From Reading to Experiencing 】 The biggest challenge in understanding Unix v6 is that reading code is static, but an operating system is dynamic. We have solved this problem. We ported the classic Unix v6 to the Intel 8086 architecture (Real Mode) and built a powerful virtual machine around it. This isn't just an emulator—it is an interactive learning environment designed to help you verify the logic described in the book. 【 Key Features 】 The Ultimate Study Companion: Designed specifically to accompany your reading of the Lions' source code. Don't just imagine how the code runs—watch it happen. Source-Level Debugging: Say goodbye to raw assembly guesswork. Set breakpoints directly in the C source code to pause execution at critical moments. Precise Execution Control: Master the kernel's logic with full stepping capabilities. Step In: Dive into function calls to see how the kernel handles sub-routines. Step Over: Execute lines quickly to grasp the high-level flow. Step Out: Quickly return to the caller function to understand the call stack hierarchy. Deep Dive into the Kernel: Struggle to understand the complex flow of context switching or interrupts? Place a breakpoint on swtch() or trap() and trace the execution path line-by-line. Simplified 8086 Architecture: By running on 8086 Real Mode, the underlying hardware logic is easier to understand than the original PDP-11. Portable Lab: No complex setups, no QEMU configuration. Your pocket OS laboratory is ready whenever you are. 【 Why This App? 】 Don't just read the history of computing—trace it. Whether you are a CS student grappling with OS concepts or a veteran developer revisiting the classics, this app bridges the gap between theory and practice by letting you walk through the code live.

MicroController Learning Lab is the ultimate interactive learning tool for anyone who wants to understand microcontrollers — from complete beginners to experienced engineers looking to sharpen their skills. Whether you are exploring electronics for the first time or building your next embedded systems project, this app gives you everything you need in one place. What's Inside: Curriculum — Structured lessons covering microcontroller fundamentals, digital I/O, analog sensors, PWM, serial communication, interrupts, and more. Learn at your own pace with clear, focused explanations. Interactive Simulators — Five animated simulators let you visualize how circuits and signals behave in real time. Watch LED blink patterns, PWM duty cycles, ADC conversions, and serial data come to life on screen. Breadboard Lab — Wire up real project circuits on a virtual breadboard. Auto-Wire builds the connections instantly. Then launch the Live Simulation to see your circuit running with animated signals and pin states. Illustrated Diagrams — 30 hand-crafted technical illustrations cover everything from pinout diagrams and circuit schematics to communication protocol timing charts. Real-World Projects — Eight guided projects show how microcontrollers are used in actual applications: soil moisture monitors, weather stations, smart relays, motor controllers, and more. Reference Library — Quick-access tables for GPIO pinouts, register maps, timing values, and common code patterns — everything you need without leaving the app. Microcontrollers Covered: ATmega328P (Arduino Uno), ATtiny85, ESP32, RP2040 (Raspberry Pi Pico), STM32 Who Is This App For: Students in electronics, computer engineering, and robotics courses. Hobbyists building their first embedded project. Engineers who want a fast visual reference on the go. No prior electronics experience required. Start from the basics and build up to real working projects.