Saturday, June 19, 2010

Yet another bug in IRQ emulation

Trying to find out why NetBSD versions 1.6-3.1 do not boot, I found a bug in IRQ processing. After fixing it these versions still don't boot, :) but fail more gracefully.
Looks like there is another couple of bugs to go...

Saturday, June 12, 2010

Solaris 2.2 / sparc

Still in 1993. Moved from November to May: Using the cg14 implementation from Bob I was able to boot Solaris 2.2 on emulated SPARCstation-20. It was not possible before cause Solaris 2.2 is not compatible with SS-5. I wonder what are the oldest Solaris/SunOS versions which can be booted on SS-20? Solaris 2.0 is not: it supported only sun4c. SunOS 4.1.2 can not boot either: according to the Wikipedia it supports sun4m, but none of the SPARCstations.

So the versions left untested are Solaris 2.1 and SunOS 4.1.{0-1}. Have no idea about SunOS 4.0.

Will post some screenshots later.