Re: R6502AP

On 2014-11-30 02:48, Segher Boessenkool 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 :-)

Mayby I should retest it during full moon :-)

But since we only passed new moon phase - currently all runs are
consistent: all three MOS chips I have left pass, while all Rockwells
fail right away. It may be of little practical meaning but it seems to
show that there is some difference in both chip's implementations.

-- 
SD!

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