Xref: utzoo comp.sys.ibm.pc.hardware:2958 comp.sys.ibm.pc.misc:3442 Path: utzoo!attcan!uunet!know!zaphod.mps.ohio-state.edu!wuarchive!psuvax1!rutgers!rochester!pt.cs.cmu.edu!o.gp.cs.cmu.edu!andrew.cmu.edu!jc58+ From: jc58+@andrew.cmu.edu (Johnny J. Chin) Newsgroups: comp.sys.ibm.pc.hardware,comp.sys.ibm.pc.misc Subject: Fwd: Breakout switch Message-ID: <0bCMglG00UhB82EI8g@andrew.cmu.edu> Date: 8 Nov 90 16:43:29 GMT References: <9011081145.AA27682@decpa.pa.dec.com> Organization: Carnegie Mellon, Pittsburgh, PA Lines: 14 ---------- Forwarded message begins here ---------- Return-path: From: "Jacques Pierson, EIS Brussels, 856-7547" Subject: Re: Breakout switch Fairly simple, you have to ground NMI with a momentary switch. I tend to remember that NMI can be found on pin 1 of the expansion bus, but I am not sure anymore wether it is on tha A side or the B side -- I think it is on the B side, but double check that. Some debuggers support such a breakout switch, such as BXD, CodeView,... Jacques