[LMH] nevermore diags

[Daniel Seagraves]

On Tue, 18 Oct 2005, Brad Parker wrote:

> Now, if I could just figure out why the WCS parity is broken.  Nevermore
> doesn't calculate it but Meroko does and it fails there also.

My ALU implementation is broken, and may be affecting this.
I've been trying to figure out how it's supposed to work.

The ALU broken-ness seems to be affecting the T-memory test (at least) -
That's why I am seeing references to Condition 17. I don't understand how
it's broken yet.

I commited a few attempts at fixing it to svn (Other bad stuff was going
on, like subtraction wouldn't roll negative and such) but it hasn't
changed any of the test results yet. I was able to make the VMA test error
count change by messing with the ALU, so I think my wierd VMA fault stuff
is an ALU fault as well.