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Groups > comp.sys.acorn.programmer > #2037

Re: Assembler Help.

Message-ID <120808235501@arcade.demon.co.uk> (permalink)
From jgh@arcade.demon.co.uk (Jonathan Graham Harston)
Newsgroups comp.sys.acorn.programmer
Subject Re: Assembler Help.
References (9 earlier) <Itl*23+bu@news.chiark.greenend.org.uk> <52bb330b1aNews03@avisoft.f9.co.uk> <2ec334e3-5027-417a-9259-d56cf55a4561@m13g2000vbd.googlegroups.com> <33704729-7bec-4fc3-ad69-32a9a757a688@j11g2000vbc.googlegroups.com> <f8e3bfbb52.martin@blueyonder.co.uk>
Date 2012-08-08 23:15 +0100

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martin.bazley wrote:
> There is no difference between the OS_GetEnv SWI and the HIMEM keyword -
> they perform exactly the same function.  Just use OS_GetEnv.
 
No they don't. When BASIC starts up HIMEM is initialised to the
return value from OS_GetEnv. That is all. If you do HIMEM=HIMEM-16384
and then read HIMEM it will be different to the return value from
OS_GetEnv. OS_GetEnv returns the top of the environment's memory
area. HIMEM returns the top of BASIC's memory area.
 
-- 
J.G.Harston - jgh@mdfs.net - mdfs.net/jgh
Sheffield Parliamentary Boundary Review - http://mdfs.net/per13

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Assembler Help. Gazza <usenet@garethlock.com> - 2012-07-10 07:09 -0700
  Re: Assembler Help. Gazza <usenet@garethlock.com> - 2012-07-10 08:46 -0700
    Re: Assembler Help. Chris Johnson <chrisjohnson+news@spamcop.net> - 2012-07-10 18:06 +0100
      Re: Assembler Help. jgharston <jgh@arcade.demon.co.uk> - 2012-07-11 11:26 -0700
        Re: Assembler Help. cferris@freeRemoveuk.com.invalid - 2012-07-11 20:05 +0100
          Re: Assembler Help. jgharston <jgh@arcade.demon.co.uk> - 2012-07-11 15:16 -0700
          Re: Assembler Help. Steve Drain <steve@kappa.me.uk> - 2012-07-12 10:25 +0100
            Re: Assembler Help. cferris@freeRemoveuk.com.invalid - 2012-07-13 09:23 +0100
              Re: Assembler Help. Steve Drain <steve@kappa.me.uk> - 2012-07-13 11:16 +0100
                Re: Assembler Help. Gazza <usenet@garethlock.com> - 2012-07-24 05:17 -0700
                Re: Assembler Help. Gavin Wraith <gavin@wra1th.plus.com> - 2012-07-24 14:02 +0100
                Re: Assembler Help. Gazza <usenet@garethlock.com> - 2012-07-24 06:49 -0700
                Re: Assembler Help. Steve Drain <steve@kappa.me.uk> - 2012-07-24 15:03 +0100
                Re: Assembler Help. usenet@garethlock.com - 2012-07-24 08:21 -0700
                Re: Assembler Help. Steve Drain <steve@kappa.me.uk> - 2012-07-24 17:55 +0100
                Re: Assembler Help. Theo Markettos <theom+news@chiark.greenend.org.uk> - 2012-08-03 20:26 +0100
                Re: Assembler Help. cferris@freeRemoveuk.com.invalid - 2012-08-05 08:51 +0100
                Re: Assembler Help. Martin Bazley <martin.bazley@blueyonder.co.uk> - 2012-07-24 20:04 +0100
                Re: Assembler Help. Gazza <usenet@garethlock.com> - 2012-07-24 14:16 -0700
                Re: Assembler Help. Jeremy Nicoll - news posts <jn.nntp.scrap007@wingsandbeaks.org.uk> - 2012-07-24 22:34 +0100
                Re: Assembler Help. Chris Johnson <chrisjohnson+news@spamcop.net> - 2012-07-24 23:56 +0100
                Re: Assembler Help. Martin Bazley <martin.bazley@blueyonder.co.uk> - 2012-07-25 01:42 +0100
                Re: Assembler Help. Gazza <usenet@garethlock.com> - 2012-08-03 05:54 -0700
                Re: Assembler Help. Martin Bazley <martin.bazley@blueyonder.co.uk> - 2012-08-03 17:52 +0100
                Re: Assembler Help. "Barry Allen (news)" <evanallen@onetel.net.uk.invalid> - 2012-08-04 10:21 +0100
                Re: Assembler Help. Gazza <usenet@garethlock.com> - 2012-08-04 15:57 -0700
                Re: Assembler Help. cferris@freeRemoveuk.com.invalid - 2012-08-05 08:48 +0100
                Re: Assembler Help. Martin <News03@avisoft.f9.co.uk> - 2012-08-06 10:00 +0100
                Re: Assembler Help. Theo Markettos <theom+news@chiark.greenend.org.uk> - 2012-08-06 13:26 +0100
                Re: Assembler Help. Martin <News03@avisoft.f9.co.uk> - 2012-08-06 23:13 +0100
                Re: Assembler Help. Gazza <usenet@garethlock.com> - 2012-08-07 08:50 -0700
                Re: Assembler Help. Gazza <usenet@garethlock.com> - 2012-08-07 15:43 -0700
                Re: Assembler Help. Martin Bazley <martin.bazley@blueyonder.co.uk> - 2012-08-08 00:52 +0100
                Re: Assembler Help. usenet@garethlock.com - 2012-08-08 02:03 -0700
                Re: Assembler Help. jeffrey.a.doggett@gmail.com - 2012-08-08 02:19 -0700
                Re: Assembler Help. druck <news@druck.org.uk> - 2012-08-12 09:05 +0100
                Re: Assembler Help. Frank de Bruijn <zuiderduin@hotmail.com> - 2012-08-08 11:40 +0200
                Re: Assembler Help. Jeremy Nicoll - news posts <jn.nntp.scrap007@wingsandbeaks.org.uk> - 2012-08-08 11:34 +0100
                Re: Assembler Help. Justin Fletcher <gerph@gerph.org> - 2012-08-09 21:19 +0100
                Re: Assembler Help. druck <news@druck.org.uk> - 2012-08-12 09:08 +0100
                Re: Assembler Help. Gazza <usenet@garethlock.com> - 2012-08-14 05:17 -0700
                Re: Assembler Help. Chris Johnson <chrisjohnson+news@spamcop.net> - 2012-08-14 14:50 +0100
                Re: Assembler Help. Martin Bazley <martin.bazley@blueyonder.co.uk> - 2012-08-14 15:03 +0100
                Re: Assembler Help. Martin Bazley <martin.bazley@blueyonder.co.uk> - 2012-08-14 14:59 +0100
                Re: Assembler Help. Gazza <usenet@garethlock.com> - 2012-08-15 17:01 -0700
                Re: Assembler Help. Gazza <usenet@garethlock.com> - 2012-08-21 03:54 -0700
                Re: Assembler Help. Martin <News03@avisoft.f9.co.uk> - 2012-08-21 12:27 +0100
                Re: Assembler Help. Gazza <usenet@garethlock.com> - 2012-08-21 05:08 -0700
                Re: Assembler Help. Gazza <usenet@garethlock.com> - 2012-08-21 05:25 -0700
                Re: Assembler Help. Gazza <usenet@garethlock.com> - 2012-08-21 08:23 -0700
                Re: Assembler Help. druck <news@druck.org.uk> - 2012-08-21 18:19 +0100
                Re: Assembler Help. Gazza <usenet@garethlock.com> - 2012-08-21 14:20 -0700
                Re: Assembler Help. cferris@freeRemoveuk.com.invalid - 2012-08-22 09:07 +0100
                Re: Assembler Help. Gazza <usenet@garethlock.com> - 2012-08-22 05:28 -0700
                Re: Assembler Help. Steve Fryatt <news@stevefryatt.org.uk> - 2012-08-22 14:47 +0100
                Re: Assembler Help. druck <news@druck.org.uk> - 2012-08-22 23:11 +0100
                Re: Assembler Help. Martin Bazley <martin.bazley@blueyonder.co.uk> - 2012-08-29 18:36 +0100
                Re: Assembler Help. Jeremy Nicoll - news posts <jn.nntp.scrap007@wingsandbeaks.org.uk> - 2012-08-22 09:38 +0100
                Re: Assembler Help. jgh@arcade.demon.co.uk (Jonathan Graham Harston) - 2012-08-08 23:15 +0100
                Re: Assembler Help. Martin Bazley <martin.bazley@blueyonder.co.uk> - 2012-08-09 13:59 +0100
                Re: Assembler Help. Steve Drain <steve@kappa.me.uk> - 2012-08-10 15:50 +0100
  Re: Assembler Help. Frank de Bruijn <zuiderduin@hotmail.com> - 2012-07-11 08:30 +0200
    Re: Assembler Help. cferris@freeRemoveuk.com.invalid - 2012-07-11 09:26 +0100

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