Virtual Hardware for Operating System Development
			  
			     Abstract

		See-Mong Tan, David Raila, Willy Liao,
			and Roy Campbell

Developing an operating system on bare hardware is difficult
due to an inhospitable development environment, long
edit-compile-run-debug times, and the need for extra target hardware.
This paper contributes general techniques for
creating virtual hardware for operating systems development.
The virtual machine is realized on top of UNIX and
is a close approximation of real hardware, including
interrupts, time slicing, virtual memory, devices, multiple processors with
separately programmable memory management units, and
the ability to run application programs natively.
Debugging and testing our operating system in such an
environment was considerably quicker and easier compared
to developing on bare hardware.