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Groups > comp.lang.forth > #59082

Re: Rosetta: Caesar cipher

From Alex <alex@rivadpm.com>
Newsgroups comp.lang.forth
Subject Re: Rosetta: Caesar cipher
Date 2017-05-11 14:39 +0100
Organization A noiseless patient Spider
Message-ID <of1pc1$ags$1@dont-email.me> (permalink)
References <oet9tb$166r$1@gioia.aioe.org> <of09pp$k46$1@dont-email.me> <27244bc8-3cf8-445d-803e-bef86c1e6122@googlegroups.com> <of0tsi$6u0$1@dont-email.me> <f1076906-0347-405f-ba3d-dadf1e9a065e@googlegroups.com>

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On 5/11/2017 13:34, Julian Fondren wrote:
>> Bounds?
> it's just OVER + SWAP ( c-addr1 u -- c-addr1+u c-addr )
> 
> BOUNDS DO ( I is the address of each character of the string ) LOOP
> 

I never understood what the Intel x86 XADD opcode was for until I came 
across BOUNDS. It enables OVER + SWAP in a single operation.

-- 
Alex

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Thread

Rosetta: Caesar cipher "Robert L." <No_spamming@noWhere_7073.org> - 2017-05-09 20:47 +0000
  Re: Rosetta: Caesar cipher Joel Rees <joel.rees@gmail.com> - 2017-05-09 20:20 -0700
    Re: Rosetta: Caesar cipher hughaguilar96@gmail.com - 2017-05-12 13:52 -0700
  Re: Rosetta: Caesar cipher rickman <gnuarm@gmail.com> - 2017-05-10 20:07 -0400
    Re: Rosetta: Caesar cipher Julian Fondren <julian.fondren@gmail.com> - 2017-05-10 21:12 -0700
      Re: Rosetta: Caesar cipher rickman <gnuarm@gmail.com> - 2017-05-11 01:50 -0400
        Re: Rosetta: Caesar cipher Julian Fondren <julian.fondren@gmail.com> - 2017-05-11 05:34 -0700
          Re: Rosetta: Caesar cipher Alex <alex@rivadpm.com> - 2017-05-11 14:39 +0100
            Re: Rosetta: Caesar cipher anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2017-05-11 16:04 +0000
              Re: Rosetta: Caesar cipher Alex <alex@rivadpm.com> - 2017-05-11 21:35 +0100
            Re: Rosetta: Caesar cipher mhx@iae.nl - 2017-05-11 10:21 -0700
          Re: Rosetta: Caesar cipher rickman <gnuarm@gmail.com> - 2017-05-12 13:41 -0400

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