[stella] Question about opcode ANE ($8B)

["Dennis Debro" <dennis@xxxxxxxxxxxxxxx>]

Hi there,

I was reading up on opcode ANE (also known as XAA). From what I read it's
the same as...
TXA
AND #<imm value>

It seems to work in Z26. Then I tried the value #$15 and I don't get my
desired results.

Here are my results if x is #$ff
<imm value>.....<result>
   #$40           #$40 ......... PASS
   #$AA           #$AA ......... PASS
   #$15           #$04 ......... FAIL :-(

Does anyone know of any limitations on this opcode? Is this what I would
see on the real hardware and the 6502/7?

Take care,
Dennis

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