19 Nov
2004
19 Nov
'04
5:32 a.m.
Hello ClassicCmpers,
Does anyone know what are the real technical differences between sun4,
sun4c and sun4m subarchitectures of SPARC from the viewpoint of an OS
kernel writer? I know that SunOS treats them as different kernel
architectures while Net/OpenBSD has a unified SPARC kernel, as does
Linux if I'm not mistaken. I'm trying to evaluate the pros and cons
of the two approaches. Reason: a friend of mine is porting 4.3BSD-Quasijarus
to SPARC and I'm trying to help him with the key architectural decisions.
We have the SunOS 4.1.4 source.
MS