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- Path: nj5.injersey.com!jeremyn
- From: jeremyn@nj5.injersey.com (Jeremy )
- Newsgroups: comp.sys.amiga.programmer
- Subject: Re: What is a "Line 1011 emulator " error ?
- Date: 23 Mar 1996 19:58:10 GMT
- Organization: Asbury Park Press
- Message-ID: <4j1l4i$ddg@news.injersey.com>
- References: <4ip7j3$set@badger.wmin.ac.uk> <4ip8td$k3e@soleil.uvsq.fr> <4islck$eig@ar.ar.com.au> <4j1jrk$d8u@news.injersey.com>
- NNTP-Posting-Host: nj5.injersey.com
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-
- > Storm/Cydonia (storm@ar.ar.com.au) wrote:
- > >Nicolas Pomarede (pomarede@isty-info.uvsq.fr) wrote:
- > >:iuyec@westminster.ac.uk (Ambrose Adamson) wrote:
- > >:>Every time I run my program, after its finished I get a guru which happens
- > >:>to report that a "line 1011 emulator" error has occured. I have read the
- > >:>"Amiga ROM Kernel Reference: libraries" book and and its says " execution
- > >:>of opcode beginning with $F". could someone please explain to me what that
- > >:>means ?
-
- > >:This means that when your program exits, he may jump to a random
- > >:location in mem, where the first 2 bytes start with a $F.
- > >:Perhaps you're messing with the stack pointer or something like this ?
-
- > >Are you sure about this? I thought this guru occured when one attempted
- > >to execute an FPU or MMU instruction on a system that was not so equipped.
- > >And that for FPU instructions the opcode (NOT the PC) started with $F.
-
- > >:Usually, it means that you're no more executing your own code, but
- > >:that the CPU is trying to interpret a random location as code.
-
- > >Possibly, or possibly he compiled his program for FPU when he doesn't
- > >have one. Although if he did that I think it would crash instantly -
- > >a friend made that mistake and as soon as the program tried to call
- > >it's first OS routine it tried to put all FPU registers on the stack
- > >and crashed.
-
- > Interestingly, I got this error myself for the first time yesterday. Not
- > with my own program, mind you, but when attempting to run Megaball 4. I
- > tried it several times and got this guru each time.
-
- > This program has run perfectly on my machine (which is MMU and FPU
- > equipped) before.
-
- I just did my troubleshooting with this, and I uncovered the problem, at
- least my problem with Megaball, which might be a starting poing for you.
- Megaball crashes with this error every single time I run it, but ONLY
- when Executive is running.
-
- I tried setting Executive to noschedule/above for Megaball, then
- noschedule/leave alone, and it still crashed. Runs fine without
- Executive. first problem of any kind I've found with Exeutive, which is
- otherwise a gift from God, near as I can tell.
-
- Jeremy
- jeremyn@injersey.com
-
-