Re: R6502AP

On Saturday 29 November 2014, 19:48:07 Segher Boessenkool 
<segher@kernel.crashing.org> wrote:
> On Sun, Nov 30, 2014 at 01:54:30AM +0100, silverdr@wfmh.org.pl wrote:
> > I ran the tests. Tried earlier but they take much longer than I thought
> > so I finished only tonight. And.. the MOS 6502AD passes all the tests
> > from that suite. The R6502AP fails repeatedly on one called "pc64-aneb".
> > Since the mnemonics are different from what I once learned I don't know
> > what command this is. Probably something from the AND family. But the
> > difference is there every time I run the tests (why - BTW - does it have
> > to spin the motor all the time?)
> 
> That seems (from the name) to be testing ANE, a.k.a. XAA, op $8b.
> 
> It is the most unstable unsupported op, giving different results
> _per run_ on some MOS/CSG devices as well.  It is heavily temperature,
> process, batch, phase-of-the-moon, you-name-it dependent :-)

yup its that one - and the test in the lorenz suite uses a hardcoded "magic 
value" for it, so the test will fail randomly... (i updated the c64 version of 
the testsuite a while ago to first check the "magic value", which makes it 
fail less often... it still may do it occasionally)

tl;dr: the ANE and LAXIMM tests may fail, dont bother :)

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