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From: cmcmanis@sun.uucp (Chuck McManis)
Newsgroups: comp.sys.amiga
Subject: Re: Wanted: Good Debugger (hopefully PD)
Message-ID: <11007@sun.uucp>
Date: Tue, 6-Jan-87 13:30:31 EST
Article-I.D.: sun.11007
Posted: Tue Jan  6 13:30:31 1987
Date-Received: Tue, 6-Jan-87 23:23:26 EST
References: <2846@gitpyr.gatech.EDU>
Organization: Sun Microsystems, Inc.
Lines: 28
Keywords: Broke Desperate Frustrated

In article <2846@gitpyr.gatech.EDU>, Mark Wutka writes:
> Anybody know of a good debugger that is inexpensive (VERY inexpensive) ?
> 
> I have been toying around with the Macro Assembler and I can't even open
> the Intuition Library. It bombs when I jump to OpenLibrary and I can't
> figure out why. I can't even tell if it is the jump that does it or if
> it bombs within OpenLibrary since I can't tell where my program is
> loaded into memory so I can't track it very well. Anybody know of a debugger
> that would help ?
> -- 
> ...!{akgua,allegra,amd,hplabs,ihnp4,masscomp,ut-ngp}!gatech!gitpyr!wutka

I don't know of a good debugger but I may know your problem. I have 
found the only way to reliably start assembly programs is to use
the startup code in the back of the Rom Kernel Manual, specifically
you must first initialize a variable called "SysBase" to the contents
of location AbsExecBase ($4), then you must open the dos library
with MOVE.L	#dosname,A1
     MOVE.l	#0,D0
     CallSys	OpenLibrary

And then you can do whatever else you want. But without these two, and
in that order you can't do anything.

-- 
--Chuck McManis
uucp: {anywhere}!sun!cmcmanis   BIX: cmcmanis  ARPAnet: cmcmanis@sun.com
These opinions are my own and no one elses, but you knew that didn't you.