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Groups > comp.sys.acorn.programmer > #1890

Re: Assembler Help. (AKA UMoria Video refresh loop.)

From Martin Bazley <martin.bazley@blueyonder.co.uk>
Newsgroups comp.sys.acorn.programmer
Subject Re: Assembler Help. (AKA UMoria Video refresh loop.)
Message-ID <f89820ab52.martin@blueyonder.co.uk> (permalink)
References (1 earlier) <56630091-6bfd-4e00-bc90-5787c4637779@f30g2000vbz.googlegroups.com> <62b4d0ac-f4dd-496f-9196-730c740b6513@googlegroups.com> <mpro.m6nfj400dzsbf02ts@wingsandbeaks.org.uk.invalid> <JBk*1rx-t@news.chiark.greenend.org.uk> <4dc35184-4321-4614-9483-e4b6dddd6fbe@q2g2000vbv.googlegroups.com>
Organization virginmedia.com
Date 2012-07-06 18:13 +0100

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The following bytes were arranged on 6 Jul 2012 by Gazza :

> 1.  Still trying to position the stack allocation beyond the end of
> the initialized data at the end of the image. I've calculated the
> correct address at stackptr, but all I seem to be able to to is load
> R13 with the pointer's memory address, rather than the contents of
> that address. This is frustrating.

Without looking...

Is:

LDR R13,[pointer%]
LDR R13,[R13]

not enough for you?

-- 
  __<^>__
 / _   _ \           It is written that Geeks shall inherit the Earth.
( ( |_| ) )
 \_>   <_/  ======================= Martin Bazley ==========================

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Assembler Help. (AKA UMoria Video refresh loop.) Gazza <usenet@garethlock.com> - 2012-06-29 06:44 -0700
  Re: Assembler Help. (AKA UMoria Video refresh loop.) Gazza <usenet@garethlock.com> - 2012-06-29 13:52 -0700
    Re: Assembler Help. (AKA UMoria Video refresh loop.) chrisbazley@bigfoot.com - 2012-06-30 03:01 -0700
      Re: Assembler Help. (AKA UMoria Video refresh loop.) druck <news@druck.org.uk> - 2012-06-30 21:31 +0100
        Re: Assembler Help. (AKA UMoria Video refresh loop.) Gazza <usenet@garethlock.com> - 2012-07-01 04:02 -0700
        Re: Assembler Help. (AKA UMoria Video refresh loop.) Gazza <usenet@garethlock.com> - 2012-07-01 04:01 -0700
        Re: Assembler Help. (AKA UMoria Video refresh loop.) Gazza <usenet@garethlock.com> - 2012-07-01 04:15 -0700
          Re: Assembler Help. (AKA UMoria Video refresh loop.) druck <news@druck.org.uk> - 2012-07-01 19:59 +0100
            Re: Assembler Help. (AKA UMoria Video refresh loop.) Gazza <usenet@garethlock.com> - 2012-07-01 14:43 -0700
              Re: Assembler Help. (AKA UMoria Video refresh loop.) druck <news@druck.org.uk> - 2012-07-03 20:57 +0100
                Re: Assembler Help. (AKA UMoria Video refresh loop.) Gazza <usenet@garethlock.com> - 2012-07-03 16:20 -0700
                Re: Assembler Help. (AKA UMoria Video refresh loop.) Gazza <usenet@garethlock.com> - 2012-07-04 05:36 -0700
                Re: Assembler Help. (AKA UMoria Video refresh loop.) Martin Bazley <martin.bazley@blueyonder.co.uk> - 2012-07-04 13:49 +0100
                Re: Assembler Help. (AKA UMoria Video refresh loop.) Gazza <usenet@garethlock.com> - 2012-07-04 09:10 -0700
                Re: Assembler Help. (AKA UMoria Video refresh loop.) Chris Johnson <chrisjohnson+news@spamcop.net> - 2012-07-04 17:28 +0100
                Re: Assembler Help. (AKA UMoria Video refresh loop.) Gazza <usenet@garethlock.com> - 2012-07-04 11:18 -0700
                Re: Assembler Help. (AKA UMoria Video refresh loop.) druck <news@druck.org.uk> - 2012-07-04 20:03 +0100
      Re: Assembler Help. (AKA UMoria Video refresh loop.) Jeremy Nicoll - news posts <jn.nntp.scrap007@wingsandbeaks.org.uk> - 2012-07-04 19:33 +0100
        Re: Assembler Help. (AKA UMoria Video refresh loop.) Theo Markettos <theom+news@chiark.greenend.org.uk> - 2012-07-05 18:41 +0100
          Re: Assembler Help. (AKA UMoria Video refresh loop.) Gazza <usenet@garethlock.com> - 2012-07-06 09:40 -0700
            Re: Assembler Help. (AKA UMoria Video refresh loop.) Martin Bazley <martin.bazley@blueyonder.co.uk> - 2012-07-06 18:13 +0100
              Re: Assembler Help. (AKA UMoria Video refresh loop.) Gazza <usenet@garethlock.com> - 2012-07-06 10:49 -0700
                Re: Assembler Help. (AKA UMoria Video refresh loop.) Martin Bazley <martin.bazley@blueyonder.co.uk> - 2012-07-06 23:29 +0100
                Re: Assembler Help. (AKA UMoria Video refresh loop.) Gazza <usenet@garethlock.com> - 2012-07-06 15:46 -0700
            Re: Assembler Help. (AKA UMoria Video refresh loop.) Fred Graute <fjgraute@casema.nl> - 2012-07-07 03:07 +0300
    Re: Assembler Help. (AKA UMoria Video refresh loop.) chrisbazley@bigfoot.com - 2012-06-30 04:21 -0700

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