Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!swrinde!zaphod.mps.ohio-state.edu!sdd.hp.com!ucsd!pacbell.com!pacbell!rtech!ingres!llama!dalekim From: dalekim@llama.Ingres.COM (Dale Kim) Newsgroups: comp.sys.atari.8bit Subject: Re: 6502 error conditions Message-ID: <1990Sep19.171649.20159@ingres.Ingres.COM> Date: 19 Sep 90 17:16:49 GMT References: Reply-To: dalekim@llama.Ingres.COM (Dale Kim) Distribution: comp Organization: Ingres Corporation, Alameda, CA Lines: 13 In article lennox@minilove.diag.stratus.com (Craig Scott Lennox) writes: >What does the 6502 do when it encounters an illegal >opcode? Does it just halt, as in a BRK, or can you have >it branch to a trap address? On the topic of illegal 6502 opcodes, I once heard that there was a 'Crash and Burn' instruction on the Apple II's 6502 chip (which supposedly melts down the chip). Have any of you 8-bit enthusiasts heard of anything like this for the 6502 in an Atari computer? I have an expendable Atari 800 at my disposal. :-) -Dale