Groups > comp.sys.acorn.programmer > #2732

Re: Basic ERL wrong after abort

Subject	Re: Basic ERL wrong after abort
Newsgroups	comp.sys.acorn.programmer
From	Alan Adams <alan@adamshome.org.uk>
Date	2013-05-19 18:42 +0100
Message-ID	<bf44634e53.Alan.Adams@iyonix.adamshome.org.uk> (permalink)
References	<524dd2a9c0News03@avisoft.f9.co.uk> <de924ead-531c-4100-9787-ccd2cb79f5cc@m4g2000vbc.googlegroups.com> <524dee4472News03@avisoft.f9.co.uk> <11f0a3e9-10be-4bcd-b358-b4a83f821344@j9g2000vby.googlegroups.com> <534e5dc229News03@avisoft.f9.co.uk>
Organization	Orpheus Internet Services

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In message <534e5dc229News03@avisoft.f9.co.uk>
          Martin <News03@avisoft.f9.co.uk> wrote:

> On 08 Jan, in article
> <11f0a3e9-10be-4bcd-b358-b4a83f821344@j9g2000vby.googlegroups.com>,
>    wpb <w.blatchley@yahoo.com> wrote:
>> This is very interesting. I've witnessed this bug a few times myself.
>> Martin, please do report (ha!) back about your success or otherwise
>> with rescuing the line number from the environment error handler.

> Just to give an update on this problem, I eventually managed to work out
> how to make Basic return the correct ERL, even after an abort in external
> code executed using CALL, USR, SYS, or a *command (either directly or
> using OSCLI), and that code Aborts with Data Transfer, Undefined
> Instruction or Instruction Fetch.

> This also means that a Basic program can get control back after such an
> error, rather than just ending abruptly.

> The change is in Basic v1.54, currently available only as part of RISC OS
> v5.19 dated after April 29th.

Good work there. Thanks. I see a round of updates for my computers 
will be forthcoming.

> See https://www.riscosopen.org/forum/forums/3/topics/1511 for some
> further details and any discussion.



-- 
Alan Adams, from Northamptonshire
alan@adamshome.org.uk
http://www.nckc.org.uk/

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Basic ERL wrong after abort Martin <News03@avisoft.f9.co.uk> - 2012-01-07 12:54 +0000
  Re: Basic ERL wrong after abort cferris@freeRemoveuk.com.invalid - 2012-01-07 13:49 +0000
    Re: Basic ERL wrong after abort Martin <News03@avisoft.f9.co.uk> - 2012-01-07 15:22 +0000
  Re: Basic ERL wrong after abort Gerph <gerph@gerph.org> - 2012-01-07 06:11 -0800
    Re: Basic ERL wrong after abort Martin <News03@avisoft.f9.co.uk> - 2012-01-07 17:56 +0000
      Re: Basic ERL wrong after abort wpb <w.blatchley@yahoo.com> - 2012-01-08 04:05 -0800
        Re: Basic ERL wrong after abort Martin <News03@avisoft.f9.co.uk> - 2013-05-19 17:42 +0100
          Re: Basic ERL wrong after abort Alan Adams <alan@adamshome.org.uk> - 2013-05-19 18:42 +0100

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