Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > comp.sys.sinclair > #2646

Re: The Dundee Effect

From Andrew Owen <aowen10@mail.bbk.ac.uk>
Newsgroups comp.sys.sinclair
Subject Re: The Dundee Effect
Date 2013-12-06 12:41 +0000
Organization Aioe.org NNTP Server
Message-ID <l7sgml$loo$1@speranza.aioe.org> (permalink)
References (1 earlier) <l739c5$jni$2@speranza.aioe.org> <bbc56cc2-9a3e-4aee-bb35-c666249a275d@googlegroups.com> <e77d067e-5e0d-447f-8f06-03d5ca335572@googlegroups.com> <Hfpmu.4146$fK3.1423@fx36.am4> <op.w7dq3pf634qdui@flay.home>

Show all headers | View raw

On 30/11/2013 20:56, Paul E Collins wrote:
> My family had "The Rainbow Book of BASIC Programs", and were baffled at
> the time as to why one of them gave an error. It was down to one of the
> bugs in the 128 BASIC interpreter, where IF B<A+5 gets silently changed
> to IF BA<+5 (which is still a valid line, but fails at runtime because
> there is no variable called BA).
>
> Relatedly, I was just messing about with it and found that you can't
> enter the line at all if the buggy shift would leave it invalid, e.g. IF
> A+1>B+1. (You could use brackets, of course.)

I have a feeling that bug was introduced in the dumbed-down ROM for the 
UK market, but I wouldn't swear to it. The original Spanish ROM had a 
few bugs of its own. In fact they didn't even tell people the WIDTH 
command existed because it didn't work as intended.

Back to comp.sys.sinclair | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

The Dundee Effect Geoff Wearmouth <gwearmouth@gmail.com> - 2013-11-25 03:39 -0800
  Re: The Dundee Effect "Brian Gaff" <Briang1@blueyonder.co.uk> - 2013-11-25 14:15 +0000
    Re: The Dundee Effect Geoff Wearmouth <gwearmouth@gmail.com> - 2013-11-26 02:08 -0800
  Re: The Dundee Effect Calum <com.gmail@nospam.scottishwildcat> - 2013-11-26 23:03 +0000
    Re: The Dundee Effect Geoff Wearmouth <gwearmouth@gmail.com> - 2013-11-26 16:14 -0800
      Re: The Dundee Effect jgh@mdfs.net - 2013-11-27 07:49 -0800
        Re: The Dundee Effect philicorda <philicorda@sorrynospam.com> - 2013-11-30 17:29 +0000
          Re: The Dundee Effect "Paul E Collins" <equi@cl4.invalid> - 2013-11-30 20:56 +0000
            Re: The Dundee Effect "Chris Young" <chris.usenet@mail-filter.com> - 2013-12-01 14:24 +0000
            Re: The Dundee Effect Andrew Owen <aowen10@mail.bbk.ac.uk> - 2013-12-06 12:41 +0000
        Re: The Dundee Effect Geoff Wearmouth <gwearmouth@gmail.com> - 2013-12-06 16:13 -0800
        Re: The Dundee Effect Geoff Wearmouth <gwearmouth@gmail.com> - 2013-12-06 16:15 -0800
          Re: The Dundee Effect John Elliott <jce@seasip.demon.co.uk> - 2013-12-07 18:23 +0000
            Re: The Dundee Effect Geoff Wearmouth <gwearmouth@gmail.com> - 2013-12-07 16:34 -0800
            Re: The Dundee Effect Andrew Owen <aowen10@mail.bbk.ac.uk> - 2013-12-09 21:44 +0000
              Re: The Dundee Effect John Elliott <jce@seasip.demon.co.uk> - 2013-12-09 23:05 +0000
                Re: The Dundee Effect John Elliott <jce@seasip.demon.co.uk> - 2013-12-09 23:19 +0000
                Re: The Dundee Effect Andrew Owen <aowen10@mail.bbk.ac.uk> - 2013-12-10 00:03 +0000
                Re: The Dundee Effect Geoff Wearmouth <gwearmouth@gmail.com> - 2013-12-10 03:44 -0800
  Re: The Dundee Effect Gerard Sweeney <gerardNO.Spamsweeney@ntlworld.com> - 2013-11-27 21:51 +0000
    Re: The Dundee Effect Geoff Wearmouth <gwearmouth@gmail.com> - 2013-11-29 15:59 -0800

csiph-web