Anybody know any large embedded real-time programs in C or C++?

[webster.henr801c at XEROX.COM]

Does anybody know any large embedded real-time programs in C or C++?  (>100K
lines of code).  I know of lots of stuff written in C that isn't embedded
real-time like XWindows, Unix, etc, and I know of small systems (musical
equipments, etc), but I'm looking for large embedded real-time.  Anybody have
any pointers?

thanks,

marc webster