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!RemoveDA/!Help

This website contains an archive of files for the Acorn Electron, BBC Micro, Acorn Archimedes, Commodore 16 and Commodore 64 computers, which Dominic Ford has rescued from his private collection of floppy disks and cassettes.

Some of these files were originally commercial releases in the 1980s and 1990s, but they are now widely available online. I assume that copyright over them is no longer being asserted. If you own the copyright and would like files to be removed, please contact me.

Tape/disk: Home » Archimedes archive » Archimedes World » archimedes_world_volume_15_issue_1_scp.adf » !OpenFiles_OpenFiles
Filename: !RemoveDA/!Help
Read OK:
File size: 117E bytes
Load address: 0000
Exec address: 0000
Duplicates

There is 1 duplicate copy of this file in the archive:

File contents
____________________________________________________________________________

                             � R e m o v e D A �

               Dynamic area Remover for RISC OS 3.50 or later

                          by David Thomas, � 1995-7
                         version 1.05 (11 Feb 1997)
____________________________________________________________________________


 Purpose ___________________________________________________________________

  RemoveDA is a utility for removing Dynamic areas which are left unremoved
when an application crashes.  Dynamic areas are a RISC OS 3.50 feature, and
so this application needs at least that version of the OS.

  This potentially a very dangerous program - it can crash the whole system
with a single click.  Use it with caution and don�t let it get into the
wrong hands.


 Usage _____________________________________________________________________

  To load RemoveDA double-click on its icon in the filer window where it
resides.  When it loads it will not show itself on the desktop, instead it
will sit in the background waiting for you to press Ctrl-D, upon which it
will open its main window (in most cases, it will only open when no other
window or icon has the input focus).  This window will list all of the
�application� dynamic areas, so it won�t include the Wimp Sprite Pool or any
of the System areas.  For example, say the main window shows the following
areas:

                256 - Zap bitmaps - 24K of 5120K at &5600000
                257 - Zap files - 880K of 5120K at &5B00000
                259 - SparkFS - 68K of 5120K at &6500000
                260 - Zap bitmaps - 24K of 5120K at &6A00000
                261 - Zap files - 12K of 5120K at &6F00000

The first two of these areas are �dead� areas left by an earlier incarnation
of Zap which had crashed.  By clicking on the �Remove� button next to each
of them, the dynamic areas will be removed and the memory freed.

  Although you can remove Dynamic areas which belong to running programs,
*don�t*, you�ll only crash the application it belongs to or even the whole
system.

  The list *will not* be automatically updated when Dynamic areas are
created or removed by an application; to update the list press Ctrl-S again. 
It will always be updated when you use the �Remove� button to remove an area
though.

  For safety�s sake, the �ROM patches� area is never shown, you should never
need to remove it anyway.


 Versions __________________________________________________________________

1.00 (16 Sep 1995)
    - First release version.
    - It�s not my fault, you can only blame yourself.

1.01 (19 Jan 1996)
    - Increased width of Remove button and reduced WimpSlot to 16K in
      response to e-mail from Dave Ward.

1.02 (05 Feb 1996)
    - �ROM patches� is never shown now, for safety.
    - Window thinned.

1.03 (20 Aug 1996)
    - Doesn�t icon bar-install now, opens with Ctrl-D.
    - Windows re-styled to coordinate with OpenFiles�.
    - The main window�s width is now 50% of the screen width.
    - Now uses a 12K wimpslot.

1.04 (14 Oct 1996)
    - Fixes, to ensure it will work in conjunction with Justin Fletcher�s
      DummyDynamicAreas, i.e. on RISC OS 3.1.
    - More space allocated for the text buffers.
    - WimpSlot increased to 16K.

1.05 (11 Feb 1997)
    - Shared OpenFiles/RemoveDA/SocketMgr updates (routine tweaking and
      unneccessary routines removed).
    - The display now shows more information - including the maximum area
      size and base of DA.


 Copyright and Contact Addresses ___________________________________________

  This software is copyrighted work of David Thomas, it is supplied �as is�;
using it is entirely at your own risk.  I make no warranty as to the fitness
of this software for any purpose.  You are free to distribute this
application to anyone you please, as long as you are not supplying it for
personal gain and it is delivered with all the supplied files unaltered.

  If you have any comments, bug reports, suggestions for future versions or
anything else don�t hesitate to contact me at -

  Mail:  Mr D.P. Thomas
         20 Rosebery Avenue
         Waterloo
         Liverpool
         L22 2BH

  Email: CMSDTHOM@livjm.ac.uk

  WWW:   http://java.cms.livjm.ac.uk/cmsdthom/

  The latest versions of my applications will be available from my World
Wide Web pages, where term dates allow.
____________________________________________________________________________

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*
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00000050  20 20 20 20 20 20 20 20  20 20 20 20 20 20 20 20  |                |
00000060  20 20 20 20 20 20 20 20  20 20 20 94 20 52 20 65  |           . R e|
00000070  20 6d 20 6f 20 76 20 65  20 44 20 41 20 95 0a 0a  | m o v e D A ...|
00000080  20 20 20 20 20 20 20 20  20 20 20 20 20 20 20 44  |               D|
00000090  79 6e 61 6d 69 63 20 61  72 65 61 20 52 65 6d 6f  |ynamic area Remo|
000000a0  76 65 72 20 66 6f 72 20  52 49 53 43 20 4f 53 20  |ver for RISC OS |
000000b0  33 2e 35 30 20 6f 72 20  6c 61 74 65 72 0a 0a 20  |3.50 or later.. |
000000c0  20 20 20 20 20 20 20 20  20 20 20 20 20 20 20 20  |                |
000000d0  20 20 20 20 20 20 20 20  20 62 79 20 44 61 76 69  |         by Davi|
000000e0  64 20 54 68 6f 6d 61 73  2c 20 a9 20 31 39 39 35  |d Thomas, . 1995|
000000f0  2d 37 0a 20 20 20 20 20  20 20 20 20 20 20 20 20  |-7.             |
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*
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00000180  5f 5f 5f 5f 5f 5f 5f 5f  5f 5f 5f 5f 5f 5f 5f 5f  |________________|
*
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*
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000009a0  5f 5f 5f 5f 5f 5f 5f 5f  5f 5f 5f 5f 5f 5f 5f 5f  |________________|
*
000009d0  5f 5f 5f 5f 5f 5f 5f 5f  5f 5f 0a 0a 31 2e 30 30  |__________..1.00|
000009e0  20 28 31 36 20 53 65 70  20 31 39 39 35 29 0a 20  | (16 Sep 1995). |
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00000a30  79 20 62 6c 61 6d 65 20  79 6f 75 72 73 65 6c 66  |y blame yourself|
00000a40  2e 0a 0a 31 2e 30 31 20  28 31 39 20 4a 61 6e 20  |...1.01 (19 Jan |
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00000a80  20 72 65 64 75 63 65 64  20 57 69 6d 70 53 6c 6f  | reduced WimpSlo|
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00000aa0  20 20 72 65 73 70 6f 6e  73 65 20 74 6f 20 65 2d  |  response to e-|
00000ab0  6d 61 69 6c 20 66 72 6f  6d 20 44 61 76 65 20 57  |mail from Dave W|
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00000b20  64 2e 0a 0a 31 2e 30 33  20 28 32 30 20 41 75 67  |d...1.03 (20 Aug|
00000b30  20 31 39 39 36 29 0a 20  20 20 20 2d 20 44 6f 65  | 1996).    - Doe|
00000b40  73 6e 91 74 20 69 63 6f  6e 20 62 61 72 2d 69 6e  |sn.t icon bar-in|
00000b50  73 74 61 6c 6c 20 6e 6f  77 2c 20 6f 70 65 6e 73  |stall now, opens|
00000b60  20 77 69 74 68 20 43 74  72 6c 2d 44 2e 0a 20 20  | with Ctrl-D..  |
00000b70  20 20 2d 20 57 69 6e 64  6f 77 73 20 72 65 2d 73  |  - Windows re-s|
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00000be0  68 2e 0a 20 20 20 20 2d  20 4e 6f 77 20 75 73 65  |h..    - Now use|
00000bf0  73 20 61 20 31 32 4b 20  77 69 6d 70 73 6c 6f 74  |s a 12K wimpslot|
00000c00  2e 0a 0a 31 2e 30 34 20  28 31 34 20 4f 63 74 20  |...1.04 (14 Oct |
00000c10  31 39 39 36 29 0a 20 20  20 20 2d 20 46 69 78 65  |1996).    - Fixe|
00000c20  73 2c 20 74 6f 20 65 6e  73 75 72 65 20 69 74 20  |s, to ensure it |
00000c30  77 69 6c 6c 20 77 6f 72  6b 20 69 6e 20 63 6f 6e  |will work in con|
00000c40  6a 75 6e 63 74 69 6f 6e  20 77 69 74 68 20 4a 75  |junction with Ju|
00000c50  73 74 69 6e 20 46 6c 65  74 63 68 65 72 91 73 0a  |stin Fletcher.s.|
00000c60  20 20 20 20 20 20 44 75  6d 6d 79 44 79 6e 61 6d  |      DummyDynam|
00000c70  69 63 41 72 65 61 73 2c  20 69 2e 65 2e 20 6f 6e  |icAreas, i.e. on|
00000c80  20 52 49 53 43 20 4f 53  20 33 2e 31 2e 0a 20 20  | RISC OS 3.1..  |
00000c90  20 20 2d 20 4d 6f 72 65  20 73 70 61 63 65 20 61  |  - More space a|
00000ca0  6c 6c 6f 63 61 74 65 64  20 66 6f 72 20 74 68 65  |llocated for the|
00000cb0  20 74 65 78 74 20 62 75  66 66 65 72 73 2e 0a 20  | text buffers.. |
00000cc0  20 20 20 2d 20 57 69 6d  70 53 6c 6f 74 20 69 6e  |   - WimpSlot in|
00000cd0  63 72 65 61 73 65 64 20  74 6f 20 31 36 4b 2e 0a  |creased to 16K..|
00000ce0  0a 31 2e 30 35 20 28 31  31 20 46 65 62 20 31 39  |.1.05 (11 Feb 19|
00000cf0  39 37 29 0a 20 20 20 20  2d 20 53 68 61 72 65 64  |97).    - Shared|
00000d00  20 4f 70 65 6e 46 69 6c  65 73 2f 52 65 6d 6f 76  | OpenFiles/Remov|
00000d10  65 44 41 2f 53 6f 63 6b  65 74 4d 67 72 20 75 70  |eDA/SocketMgr up|
00000d20  64 61 74 65 73 20 28 72  6f 75 74 69 6e 65 20 74  |dates (routine t|
00000d30  77 65 61 6b 69 6e 67 20  61 6e 64 0a 20 20 20 20  |weaking and.    |
00000d40  20 20 75 6e 6e 65 63 63  65 73 73 61 72 79 20 72  |  unneccessary r|
00000d50  6f 75 74 69 6e 65 73 20  72 65 6d 6f 76 65 64 29  |outines removed)|
00000d60  2e 0a 20 20 20 20 2d 20  54 68 65 20 64 69 73 70  |..    - The disp|
00000d70  6c 61 79 20 6e 6f 77 20  73 68 6f 77 73 20 6d 6f  |lay now shows mo|
00000d80  72 65 20 69 6e 66 6f 72  6d 61 74 69 6f 6e 20 2d  |re information -|
00000d90  20 69 6e 63 6c 75 64 69  6e 67 20 74 68 65 20 6d  | including the m|
00000da0  61 78 69 6d 75 6d 20 61  72 65 61 0a 20 20 20 20  |aximum area.    |
00000db0  20 20 73 69 7a 65 20 61  6e 64 20 62 61 73 65 20  |  size and base |
00000dc0  6f 66 20 44 41 2e 0a 0a  0a 20 43 6f 70 79 72 69  |of DA.... Copyri|
00000dd0  67 68 74 20 61 6e 64 20  43 6f 6e 74 61 63 74 20  |ght and Contact |
00000de0  41 64 64 72 65 73 73 65  73 20 5f 5f 5f 5f 5f 5f  |Addresses ______|
00000df0  5f 5f 5f 5f 5f 5f 5f 5f  5f 5f 5f 5f 5f 5f 5f 5f  |________________|
*
00000e10  5f 5f 5f 5f 5f 0a 0a 20  20 54 68 69 73 20 73 6f  |_____..  This so|
00000e20  66 74 77 61 72 65 20 69  73 20 63 6f 70 79 72 69  |ftware is copyri|
00000e30  67 68 74 65 64 20 77 6f  72 6b 20 6f 66 20 44 61  |ghted work of Da|
00000e40  76 69 64 20 54 68 6f 6d  61 73 2c 20 69 74 20 69  |vid Thomas, it i|
00000e50  73 20 73 75 70 70 6c 69  65 64 20 94 61 73 20 69  |s supplied .as i|
00000e60  73 95 3b 0a 75 73 69 6e  67 20 69 74 20 69 73 20  |s.;.using it is |
00000e70  65 6e 74 69 72 65 6c 79  20 61 74 20 79 6f 75 72  |entirely at your|
00000e80  20 6f 77 6e 20 72 69 73  6b 2e 20 20 49 20 6d 61  | own risk.  I ma|
00000e90  6b 65 20 6e 6f 20 77 61  72 72 61 6e 74 79 20 61  |ke no warranty a|
00000ea0  73 20 74 6f 20 74 68 65  20 66 69 74 6e 65 73 73  |s to the fitness|
00000eb0  0a 6f 66 20 74 68 69 73  20 73 6f 66 74 77 61 72  |.of this softwar|
00000ec0  65 20 66 6f 72 20 61 6e  79 20 70 75 72 70 6f 73  |e for any purpos|
00000ed0  65 2e 20 20 59 6f 75 20  61 72 65 20 66 72 65 65  |e.  You are free|
00000ee0  20 74 6f 20 64 69 73 74  72 69 62 75 74 65 20 74  | to distribute t|
00000ef0  68 69 73 0a 61 70 70 6c  69 63 61 74 69 6f 6e 20  |his.application |
00000f00  74 6f 20 61 6e 79 6f 6e  65 20 79 6f 75 20 70 6c  |to anyone you pl|
00000f10  65 61 73 65 2c 20 61 73  20 6c 6f 6e 67 20 61 73  |ease, as long as|
00000f20  20 79 6f 75 20 61 72 65  20 6e 6f 74 20 73 75 70  | you are not sup|
00000f30  70 6c 79 69 6e 67 20 69  74 20 66 6f 72 0a 70 65  |plying it for.pe|
00000f40  72 73 6f 6e 61 6c 20 67  61 69 6e 20 61 6e 64 20  |rsonal gain and |
00000f50  69 74 20 69 73 20 64 65  6c 69 76 65 72 65 64 20  |it is delivered |
00000f60  77 69 74 68 20 61 6c 6c  20 74 68 65 20 73 75 70  |with all the sup|
00000f70  70 6c 69 65 64 20 66 69  6c 65 73 20 75 6e 61 6c  |plied files unal|
00000f80  74 65 72 65 64 2e 0a 0a  20 20 49 66 20 79 6f 75  |tered...  If you|
00000f90  20 68 61 76 65 20 61 6e  79 20 63 6f 6d 6d 65 6e  | have any commen|
00000fa0  74 73 2c 20 62 75 67 20  72 65 70 6f 72 74 73 2c  |ts, bug reports,|
00000fb0  20 73 75 67 67 65 73 74  69 6f 6e 73 20 66 6f 72  | suggestions for|
00000fc0  20 66 75 74 75 72 65 20  76 65 72 73 69 6f 6e 73  | future versions|
00000fd0  20 6f 72 0a 61 6e 79 74  68 69 6e 67 20 65 6c 73  | or.anything els|
00000fe0  65 20 64 6f 6e 91 74 20  68 65 73 69 74 61 74 65  |e don.t hesitate|
00000ff0  20 74 6f 20 63 6f 6e 74  61 63 74 20 6d 65 20 61  | to contact me a|
00001000  74 20 2d 0a 0a 20 20 4d  61 69 6c 3a 20 20 4d 72  |t -..  Mail:  Mr|
00001010  20 44 2e 50 2e 20 54 68  6f 6d 61 73 0a 20 20 20  | D.P. Thomas.   |
00001020  20 20 20 20 20 20 32 30  20 52 6f 73 65 62 65 72  |      20 Roseber|
00001030  79 20 41 76 65 6e 75 65  0a 20 20 20 20 20 20 20  |y Avenue.       |
00001040  20 20 57 61 74 65 72 6c  6f 6f 0a 20 20 20 20 20  |  Waterloo.     |
00001050  20 20 20 20 4c 69 76 65  72 70 6f 6f 6c 0a 20 20  |    Liverpool.  |
00001060  20 20 20 20 20 20 20 4c  32 32 20 32 42 48 0a 0a  |       L22 2BH..|
00001070  20 20 45 6d 61 69 6c 3a  20 43 4d 53 44 54 48 4f  |  Email: CMSDTHO|
00001080  4d 40 6c 69 76 6a 6d 2e  61 63 2e 75 6b 0a 0a 20  |M@livjm.ac.uk.. |
00001090  20 57 57 57 3a 20 20 20  68 74 74 70 3a 2f 2f 6a  | WWW:   http://j|
000010a0  61 76 61 2e 63 6d 73 2e  6c 69 76 6a 6d 2e 61 63  |ava.cms.livjm.ac|
000010b0  2e 75 6b 2f 63 6d 73 64  74 68 6f 6d 2f 0a 0a 20  |.uk/cmsdthom/.. |
000010c0  20 54 68 65 20 6c 61 74  65 73 74 20 76 65 72 73  | The latest vers|
000010d0  69 6f 6e 73 20 6f 66 20  6d 79 20 61 70 70 6c 69  |ions of my appli|
000010e0  63 61 74 69 6f 6e 73 20  77 69 6c 6c 20 62 65 20  |cations will be |
000010f0  61 76 61 69 6c 61 62 6c  65 20 66 72 6f 6d 20 6d  |available from m|
00001100  79 20 57 6f 72 6c 64 0a  57 69 64 65 20 57 65 62  |y World.Wide Web|
00001110  20 70 61 67 65 73 2c 20  77 68 65 72 65 20 74 65  | pages, where te|
00001120  72 6d 20 64 61 74 65 73  20 61 6c 6c 6f 77 2e 0a  |rm dates allow..|
00001130  5f 5f 5f 5f 5f 5f 5f 5f  5f 5f 5f 5f 5f 5f 5f 5f  |________________|
*
00001170  5f 5f 5f 5f 5f 5f 5f 5f  5f 5f 5f 5f 0a 0a        |____________..|
0000117e