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Groups > comp.sys.acorn.programmer > #1188

Re: Running BASIC text files

From Martin Wuerthner <spamtrap@mw-software.com>
Newsgroups comp.sys.acorn.programmer
Subject Re: Running BASIC text files
Date 2011-12-13 15:42 +0100
Organization MW Software
Message-ID <8095fc4052.martin@bach.planiverse.com> (permalink)
References (4 earlier) <0cfce7daaa9914kfltckhif2la72qp19ne@4ax.com> <4ee6e33b$0$2537$ba4acef3@reader.news.orange.fr> <7252de4052.martin@bach.planiverse.com> <c2c6ba4d-ea34-4825-a76e-8a41888c4b24@r6g2000yqr.googlegroups.com> <jvmee713orb99gmrvk3ake9itcu42ugfot@4ax.com>

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In message <jvmee713orb99gmrvk3ake9itcu42ugfot@4ax.com>
          John Kortink <kortink@inter.nl.net> wrote:


> On Tue, 13 Dec 2011 02:36:20 -0800 (PST), trevj <trevj@cwazy.co.uk>
> wrote:

>>For anyone wondering about version control systems/reasoning etc.
>>check out this ROOL thread... Rob Sprowson has now kindly amended the
>>renumbering step in RO5:
>>http://www.riscosopen.org/forum/forums/2/topics/71#posts-9666

> I'm not sure I will ever use one of those cheerfully and
> colourfully patched up BASICs, but while they're at it,
> they should also fix another annoying quirk (which I've
> patched myself years ago), which is faulting zero shifts
> in assembly as 'Bad shift', unless it's LSL. All other
> zero shifts (LSR#0, ASR#0, ASL#0) can be silently turned
> into LSL#0 without generating an error.

Ah yes, good point. I have run into that problem in the past. 
Obviously, it is not a problem to avoid a literal ASR#0 in the code, 
but when assembling parameterized code there are often shift 
statements like ASR#(BitsPerComponent - 2).

-- 
Martin
---------------------------------------------------------------------
Martin Wuerthner         MW Software      http://www.mw-software.com/
        RISC OS Software for Design, Printing and Publishing
---------------------------------------------------------------------

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Thread

Running BASIC text files cferris@freeRemoveuk.com.invalid - 2011-12-10 10:32 +0000
  Re: Running BASIC text files John Kortink <kortink@inter.nl.net> - 2011-12-10 12:27 +0100
    Re: Running BASIC text files cferris@freeRemoveuk.com.invalid - 2011-12-11 11:11 +0000
      Re: Running BASIC text files Steve Drain <steve@kappa.me.uk> - 2011-12-12 13:32 +0000
        Re: Running BASIC text files Martin <News03@avisoft.f9.co.uk> - 2011-12-12 17:01 +0000
          Re: Running BASIC text files Steve Drain <steve@kappa.me.uk> - 2011-12-12 17:50 +0000
            Re: Running BASIC text files Martin <News03@avisoft.f9.co.uk> - 2011-12-12 22:00 +0000
              Re: Running BASIC text files Alan Adams <alan@adamshome.org.uk> - 2011-12-18 12:37 +0000
                Re: Running BASIC text files Steve Drain <steve@kappa.me.uk> - 2011-12-18 13:21 +0000
                Re: Running BASIC text files Alan Adams <alan@adamshome.org.uk> - 2011-12-18 14:20 +0000
                Re: Running BASIC text files Steve Drain <steve@kappa.me.uk> - 2011-12-18 17:17 +0000
                Re: Running BASIC text files Rick Murray <heyrickmail-usenet@yahoo.co.uk> - 2011-12-20 05:58 +0100
                Re: Running BASIC text files Steve Drain <steve@kappa.me.uk> - 2011-12-20 15:30 +0000
                Re: Running BASIC text files Rick Murray <heyrickmail-usenet@yahoo.co.uk> - 2011-12-21 08:34 +0100
                Re: Running BASIC text files "Ste (news)" <steve@revi11.plus.com> - 2011-12-20 13:36 +0000
                Re: Running BASIC text files Steve Drain <steve@kappa.me.uk> - 2011-12-20 15:31 +0000
                Re: Running BASIC text files "John Williams (News)" <UCEbin@tiscali.co.uk> - 2011-12-20 16:39 +0100
                Re: Running BASIC text files Rick Murray <heyrickmail-usenet@yahoo.co.uk> - 2011-12-21 08:39 +0100
      Re: Running BASIC text files Rick Murray <heyrickmail-usenet@yahoo.co.uk> - 2011-12-12 16:35 +0100
        Re: Running BASIC text files John Kortink <kortink@inter.nl.net> - 2011-12-12 18:51 +0100
          Re: Running BASIC text files Rick Murray <heyrickmail-usenet@yahoo.co.uk> - 2011-12-13 06:31 +0100
            Re: Running BASIC text files Martin Wuerthner <spamtrap@mw-software.com> - 2011-12-13 10:11 +0100
              Re: Running BASIC text files trevj <trevj@cwazy.co.uk> - 2011-12-13 02:36 -0800
                Re: Running BASIC text files John Kortink <kortink@inter.nl.net> - 2011-12-13 15:20 +0100
                Re: Running BASIC text files Martin Wuerthner <spamtrap@mw-software.com> - 2011-12-13 15:42 +0100
              Re: Running BASIC text files cferris@freeRemoveuk.com.invalid - 2011-12-13 12:37 +0000
            Re: Running BASIC text files John Kortink <kortink@inter.nl.net> - 2011-12-13 15:38 +0100
  Re: Running BASIC text files  <news@iank.org.uk> - 2011-12-13 16:37 +0000

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