Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!utgpu!water!watmath!clyde!cbosgd!ihnp4!ptsfa!ames!amdcad!cae780!leadsv!hooper From: hooper@leadsv.UUCP Newsgroups: comp.sys.ibm.pc Subject: Re: Strange 8086 CPU clones. Message-ID: <1609@leadsv.UUCP> Date: Wed, 8-Jul-87 11:14:15 EDT Article-I.D.: leadsv.1609 Posted: Wed Jul 8 11:14:15 1987 Date-Received: Sat, 11-Jul-87 15:40:58 EDT References: <3995@vrdxhq.UUCP> <1610016@hpcvlo.HP.COM> <4022@vrdxhq.UUCP> Organization: LMSC-LEADS, Sunnyvale, Ca. Lines: 10 Summary: What does it do with a bad opcode? Excuse my intensity, but I have valiantly searched every Intel, Harris, etc. manual and data book I could find in search of this answer: WHAT DOES THE *@^&%%#% 8086 DO WITH A BAD OPCODE? I know that the 80186 and above have a dedicated trap vector for this. I also know that the 8080 family generally does something undocumented (a `feature'?). Thanks in advance, Desperate