Clown: a Microprocessor Simulator for Operating System Studies

TL;DR

Clown is an easy-to-use, fast microprocessor simulator designed for educational purposes, supporting OS studies with integrated tools and devices resembling Intel 80386 architecture.

Contribution

It introduces a simplified, educational microprocessor simulator with comprehensive tools and device support, tailored for teaching operating systems.

Findings

Supports undergraduate and graduate OS courses

Provides a fast, user-interactive simulation environment

Includes integrated assembler, linker, and disk formatter

Abstract

In this paper, I present the design and implementation of Clown--a simulator of a microprocessor-based computer system specifically optimized for teaching operating system courses at undergraduate or graduate levels. The package includes the simulator itself, as well as a collection of basic I/O devices, an assembler, a linker, and a disk formatter. The simulator architecturally resembles mainstream microprocessors from the Intel 80386 family, but is much easier to learn and program. The simulator is fast enough to be used as an emulator--in the direct user interaction mode.