| <HTML> |
| <HEAD> |
| <TITLE>Memory Window Help</TITLE> |
| </HEAD> |
| <BODY> |
| <H1>The Memory Window</H1> |
| <H2>Overview</H2> |
| <P>The Memory Window allows users to display the contents of collected |
| memory. The Memory Window Preferences controls all of the display |
| characteristics of the Memory Window.</P> |
| |
| <P>Memory Window topics: |
| <UL> |
| <LI><UL><A HREF="#menus">Address Menu</A> |
| <LI><A HREF="#menus_auto">Auto Update</A> |
| <LI><A HREF="#menus_now">Update Now</A> |
| <LI><A HREF="#menus_prefs">Preferences</A> |
| </UL> |
| <LI><UL><A HREF="#display">Memory Display</A> |
| <LI><A HREF="#display_nav">Navigating the Memory Window</A> |
| <LI><A HREF="#display_popup">Memory Pop-up Menu</A> |
| </UL> |
| <LI><UL><A HREF="#prefs">Memory Window Preferences</A> |
| <LI><A HREF="#prefs_size">Size of the Display Cell</A> |
| <LI><A HREF="#prefs_fmt">Format of the Display Cell</A> |
| <LI><A HREF="#prefs_bytes">Size of the Memory Window</A> |
| <LI><A HREF="#prefs_misc">Miscellaneous</A> |
| </UL> |
| </UL></P> |
| |
| <H3><A NAME="menus">Address Menu</A></H3> |
| <DL> |
| <DT><A NAME="menus_auto">Auto Update</A> |
| <DD>When selected, casues the Memory Window to update the Display. |
| <DT><A NAME="menus_now">Update Now</A> |
| <DD>Forces the Memory Window to update the Display. |
| <DT><A NAME="menus_prefs">Preferences</A> |
| <DD>Opens the Memory Window Preferences dialog. |
| </DL> |
| |
| <H3><A NAME="display">Memory Display</A></H3> |
| Like the <A HREF="register.html">Register Window</A>, the Memory Window |
| Display is organized into a spreadsheet. The address of any cell in the |
| Display can be determined by appeding the row and column headers for the |
| cell. Optionally, an ASCII display of the memory appears at the right. |
| Any non-ASCII-representable byte in memory will appear in the ASCII Display |
| as a control character (a dot, ".", by default). The <A HREF="#pref">Memory |
| Preferences Dialog</A> may be used to alter the appearance of the |
| Memory Window. Any uncollected memory will appear as "N/A", indicating that |
| this memory was not collected when the trace experiment was run. |
| |
| <P><A NAME="display_nav">To navigate the Memory Window</A>, use the mouse |
| and click the cell of interest. As an alternative, pressing the TAB key on |
| the keyboard will focus successive cells, from left to right, top to bottom. |
| The focus will wrap from the bottom of the Display to the top.</P> |
| <BR> |
| |
| <H4><A NAME="display_popup">Memory Pop-up Menu</A></H4> |
| Clicking the right mouse button while the mouse cursor lies within the |
| bounds of any cell will allow users to: |
| <DL> |
| <DT>Auto Update |
| <DD>When selected, the Memory Window will track changes in |
| memory shown in the Display. Cells in which changes have |
| occured will be highlighted. When not selected, the Memory |
| Window is "frozen", representing a "snapshot" of memory. |
| <DT>Update Now |
| <DD>Causes the Memory Window to update all the cells shown. |
| <DT>Go To <I>address</I> |
| <DD>The Memory Window Display is updated to show memory starting |
| at address <I>address</I>. |
| <DT>Open New Window at <I>address</I> |
| <DD>A new Memory Window is opened, displaying memory at address |
| <I>address</I> |
| <DT>Memory Preferences... |
| <DD>Opens the Memory Window Preferences for editing the appearance |
| of the Memory Window Display. |
| </DL> |
| <BR> |
| |
| <H3><A NAME="prefs">Memory Window Preferences</A></H3> |
| Memory Window Preference Dialog governs the appearance of the Memory Window: |
| the total number of bytes displayed, the size of each cell, ASCII control |
| character. |
| <BR> |
| |
| <H4><A NAME="prefs_size">Size of the Display Cells</A></H4> |
| This attribute controls how many bytes appear in each cell. Valid cell |
| sizes in the Memory Window may be: |
| <DL> |
| <DT>Byte |
| <DD>Each cell is exactly one byte |
| <DT>Half Word |
| <DD>Cells are displayed with two bytes |
| <DT>Word |
| <DD>Each cell contains four bytes |
| <DT>Double Word |
| <DD>Cells contain eight bytes |
| <DT>Float |
| <DD>Each cell contains four bytes, displayed as a floating point |
| number |
| <DT>Double Float |
| <DD>Cells are displayed as floating point, eight bytes each |
| </DL> |
| <BR> |
| |
| <H4><A NAME="prefs_fmt">Format of the Display Cells</A></H4> |
| The Format option of the Memory Preferences Dialog governs how the debugger |
| represents the memory. Possible representations include: |
| |
| <DL> |
| <DT>Binary |
| <DD>The values are shown as binary numbers |
| <DT>Signed Decimal |
| <DD>The values are shown as signed decimal numbers |
| <DT>Octal |
| <DD>Each cell is represented as an octal number |
| <DT>Unsigned Decimal |
| <DD>Values are displayed as unsigned decimals |
| <DT>Hex |
| <DD>Memory is displayed as a hexadecimal number. This is |
| the default. |
| </DL> |
| <BR> |
| |
| <H4><A NAME="prefs_bytes">Size of the Memory Window</A></H4> |
| The size of the memory window determines how much memory is actually |
| presented to the user. The total number of bytes shown can either be |
| determined by the size of the window, in which case resizing the Memory |
| Window will cause more or less memory to be displayed, or fixed at some |
| specified number of bytes. By default, the Memory Window shows 128 bytes |
| of memory. |
| <BR> |
| |
| <H4><A NAME="prefs_misc">Miscellaneous</A></H4> |
| Miscellaneous memory preferences include the option to display the ASCII |
| representation of the memory, including what character to use for non-ASCII |
| bytes (the "control" character). Additionally, users may specify the number |
| of bytes per row, either four, eight, sixteen, or thirty-two. The default is |
| sixteen bytes per row. |
| </BODY> |
| </HTML> |
