Subject: [stella] Question about opcode ANE ($8B) From: "Dennis Debro" <dennis@xxxxxxxxxxxxxxx> Date: Wed, 29 Jun 2005 17:46:32 -0400 |
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 Archives (includes files) at http://www.biglist.com/lists/stella/archives/ Unsub & more at http://stella.biglist.com
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