I need information about RTOS design

[vead]

I am not really going to design just I want learn something before design
I want to design my real time operating system , so I need features , requirement component and tool

I need to develop program For real time operating system
my effort
1)basic tool
compiler
linker
debugger

2)language
c language

3)requirement
requirement of real time os should be fast

features
kernel - micro kernel
scheduler - real time scheduler
multitasking - multitasking
scheduling - preemptive scheduling


I think I have forgotten some features

 

[Tanmay Dash]

refer
rtos.com/downloads/articles_and_white_papers-1