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<HTML>
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<HEAD>
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<TITLE>Source Window Help</TITLE>
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</HEAD>
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<BODY>
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<CENTER><H1>The Source Window</H1></CENTER>
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<H3>Overview</H3>
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<BR>
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The Source Window is the primary interface between the user and the
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debugger; it is automatically opened when the debugger starts.
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The Source Window displays the status of the trace experiment, controls
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navigation of the trace buffer, and allows visualization of the program
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execution.
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<P>Source Window topics:
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<UL>
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<LI><UL><A HREF="#menus">Menus</A>
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<LI><A HREF="#menus_file">File Menu</A>
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<LI><A HREF="#menus_run">Run Menu</A>
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<LI><A HREF="#menus_view">View Menu</A>
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<LI><A HREF="#menus_trace">Trace Menu</A>
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<LI><A HREF="#menus_prefs">Preferences Menu</A>
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</UL>
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<LI><UL><A HREF="#toolbar">Toolbar</A>
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<LI><A HREF="#toolbar_exec">Trace Control Buttons</A>
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<LI><A HREF="#toolbar_window">Window Buttons</A>
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<LI><A HREF="#toolbar_frame">Frame Control</A>
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</UL>
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<LI><UL><A HREF="#display">Source Window Display</A>
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<LI><A HREF="#display_balloon">Variable Balloons</A>
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<LI><A HREF="#display_popup">Source Pop-up Mens</A>
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</UL>
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<LI><UL><A HREF="#status">Source Window Status Bars</A>
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<LI><A HREF="#status_bar">Program Status Bar</A>
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<LI><A HREF="#status_mode">Source Display Status Bar</A>
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</UL>
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<LI><A HREF="#search">Search Entry</A>
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</UL></P>
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<H3><A NAME="menus">Menus</A></H3>
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<H4><A NAME="menus_file">File Menu</A></H4>
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The File menu contains the following items:
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<DL>
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<DT>Open
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<DD>Opens a file selection dialog to select the executable to debug
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<DT>Target Settings...
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<DD>Opens the <A HREF="target.html">Target Selection Dialog</A>
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to edit target settings
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<DT>Page Setup
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<DD>(Windows only) Opens the Windows Page Setup dialog to
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configure printing
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<DT>Print
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<DD>(Windows only) Print the contents of the Source Window Display
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<DT>Exit
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<DD>Exits the debugger
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</DL>
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<H4><A NAME="menus_run">Run Menu</A></H4>
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The Run menu contains the following items:
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<DL>
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<DT>Connect to target
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<DD>Establish a connection to a target. This option will open
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the <A HREF="target.html">Target Selection Dialog</A> if no
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previous connection has been established in the current
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session.
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<DT>Begin Collection
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<DD>Start collecting trace data on the target
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<DT>End Collection
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<DD>Stop collecting trace data on the target
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<DT>Disconnect
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<DD>Disconnect the debugger from the target
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</DL>
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<H4><A NAME="menus_view">View Menu</A></H4>
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The View menu contains the following items:
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<DL>
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<DT>Stack
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<DD>Open a <A HREF="stack.html">Stack Window</A>
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<DT>Registers
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<DD>Open a <A HREF="register.html">Register Window</A>
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<DT>Memory
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<DD>Open a <A HREF="memory.html">Memory Window</A>
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<DT>Watch Expressions
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<DD>Open a <A HREF="watch.html">Watch Window</A>
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<DT>Local Variables
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<DD>Open a <A HREF="locals.html">Locals Window</A>
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<DT>Tracepoints
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<DD>Open a <A HREF="tp.html">Tracepoint Window</A>
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<DT>Tdump
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<DD>Open a <A HREF="tdump.html">Tracepoint Dump Window</A>
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<DT>Console
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<DD>Open a <A HREF="console.html">Console Window</A>
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</DL>
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<H4><A NAME="menus_trace">Trace Menu</A></H4>
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The Trace Menu contains the following items:
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<DL>
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<DT>Next Hit
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<DD>Update all displays with the next tracepoint in the
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tracepoint buffer
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<DT>Previous Hit
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<DD>Go to the previous tracepoint in the buffer
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<DT>First Hit
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<DD>View the first tracepoint in the buffer
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<DT>Next Line Hit
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<DD>Go to the next tracepoint in the buffer in the same
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frame as the current tracepoint
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<DT>Next Hit Here
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<DD>Jump to the next reference of the current tracepoint
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in the buffer
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<DT>Tfind Line...
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<DD>Opens a dialog allowing the user to specify which source
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line to inpect in the tracepoint buffer
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<DT>Tfind PC...
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<DD>Opens a dialog allowing the user to specify the PC of the
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tracepoint to view
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<DT>Tfind Tracepoint...
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<DD>Opens a dialog allowing the user to specify which tracepoint
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to view (by number). This option is most commonly used in
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conjunction with the <A HREF="console.html">Console Window</A>.
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</DL>
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<H4><A NAME="menus_prefs">Preferences Menu</A></H4>
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The Preferences menu contains the following items:
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<DL>
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<DT>Global
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<DD>Opens the <A HREF="gbl_pref.html">Global Preferences Dialog</A>
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and allows editing of global settings
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<DT>Source
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<DD>Opens the <A HREF="src_pref.html">Source Preferences Dialog</A>
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and allows editing of Source Window settings
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<DT>Register
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<DD>Opens the <A HREF="reg_pref.html">Register Preferences Dialog</A>
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and allows editing of Register Window settings
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</DL>
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<H3><A NAME="toolbar">Toolbar</A></H3>
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The Source Window toolbar consists of three functional sections: trace
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control buttons, debugger window buttons, and stack frame control buttons.
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<BR>
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<H4><A NAME="toolbar_exec">Tracing Control Buttons</A></H4>
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These convenience buttons provide on-screen access to the most important
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debugger tracing control functions:
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<DL>
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<DT><A NAME="run_button"><IMG SRC="%run"> TStart</A> or
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<A NAME="stop_button"><IMG SRC="%stop"></A> TStop
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<DD>The TStart Button causes the target to start collecting trace data
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<DD>The TStop Button causes the target to stop collecting trace data
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<DT>Next Hit
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<DD>Update all displays with the next tracepoint in the
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tracepoint buffer
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<DT>Previous Hit
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<DD>Go to the previous tracepoint in the buffer
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<DT>First Hit
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<DD>View the first tracepoint in the buffer
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<DT>Next Line Hit
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<DD>Go to the next tracepoint in the buffer in the same
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frame as the current tracepoint
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<DT>Next Hit Here
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<DD>Jump to the next reference of the current tracepoint
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in the buffer
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</DL>
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<H4><A NAME="toolbar_window">Window Buttons</A></H4>
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The Debugger Window buttons give instant access to the Debugger's
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auxillary windows:
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<DL>
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<DT><A NAME="register_button"><IMG SRC="%register"></A> Registers
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<DD>Open a <A HREF="register.html">Register Window</A>
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<DT><A NAME="memory_button"><IMG SRC="%memory"></A> Memory
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<DD>Open a <A HREF="memory.html">Memory Window</A>
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<DT><A NAME="stack_button"><IMG SRC="%stack"></A> Stack
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<DD>Open a <A HREF="stack.html">Stack Window</A>
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<DT><A NAME="watch_button"><IMG SRC="%watch"></A> Watch Expressions
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<DD>Open a <A HREF="watch.html">Watch Window</A>
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<DT><A NAME="locals_button"><IMG SRC="%locals"></A> Local Variables
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<DD>Open a <A HREF="locals.html">Locals Window</A>
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<DT><A NAME="tracepoints_button">Tracepoints</A>
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<DD>Open a <A HREF="tp.html">Tracepoint Window</A>
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<DT>Tracepoint Dump Window
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<DD>Open a <A HREF="tdump.html">Tdump Window</A>
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<DT><A NAME="console_button"><IMG SRC="%console"></A> Console
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<DD>Open a <A HREF="console.html">Console Window</A>
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</DL>
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<H4><A NAME="toolbar_frame">Frame Control</A></H4>
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The Frame Control area of the toolbar displays information about the PC of
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the current frame, and the frame control buttons may be used to navigate
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through the call stack. Whenever any of these buttons are used, both the
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Source Window Display and the <A HREF="stack.html">Stack Window</A> will
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show the selected frame. In order to use the Stack Window in tracing mode,
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the stack pointer must be collected.
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<DL>
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<!-- is this a problem for windows? no file join? -->
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<DT><IMG SRC="images/frame_info.gif"> Frame Information Display
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<DD>The left half of the frame information display shows the
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value of the PC in the current frame. The right half shows
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the line number of the PC in the source file, if available.
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<DT><A NAME="up_button"><IMG SRC="%up"></A> Up
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<DD>Select and view the stack frame that called this one
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<DT><A NAME="down_button"><IMG SRC="%down"></A> Down
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<DD>Select and view the stack frame called by this one
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<DT><A NAME="bottom_button"><IMG SRC="%bottom"></A> Bottom
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<DD>Select and view the bottom-most stack frame
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</DL>
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<H3><A NAME="display">Source Display</A></H3>
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The Source Display is used for many things: browsing source code, setting,
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editing, and deleting tracepoints, and a few other special functions.
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Executable lines (those for which executable code was generated by the
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compiler) are denoted with a marker (a dash, "-") in the first column of
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the display.
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<P>The debugger highlights the PC in the current frame in either green,
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indicating that the PC is in the current tracepoint, or gold, indicating
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that the PC is contained in a frame that is not the current tracepoint, i.e.,
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as part of a stack backtrace. A blue highlight is used by the debugger to
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indicate a browsing position. All highlight colors
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are user-selectable in the <A HREF="src_pref.html">Source Preferences</A>.</P>
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<BR>
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<H4><A NAME="setting_a_tracepoint">Setting a Tracepoint</A></H4>
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Moving the mouse pointer over the "hot spot" of an executable line will change
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the mouse cursor to a large dot. Clicking the left mouse button will then allow
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tracepoint to be inserted at this line. If no tracepoint exists, the
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<A HREF="tracedlg.html">Add Tracepoint Dialog</A> will appear. If a tracepoint
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is installed, the dash in the left margin will change into a magenta breakdot.
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If a tracepoint exists, the <A HREF="tracedlg.html">Edit Tracepoint Dialog</A>
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appears, allowing either modification of the tracepoint or deletion of the
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tracepoint. If the tracepoint is deleted, the breakdot will revert to a dash.</P>
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<P>The executable line marker shows the status of each line: an empty marker
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(the dash) indicates that no tracepoint is set at the line. A colored breakdot
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indicates that a tracepoint exists at the line.</P>
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<P>The display will attempt to show the value of variables in
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<A NAME="display_balloon">variable balloons</A>. To activate a
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variable balloon, simply hold the mouse cursor over the name of
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a variable in the Source Display for a second or two: the debugger displays the
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name of the variable, its type, and its value in a pop-up balloon. If the
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variable was not collected, the Variable Balloon will show a memory-access error.</P>
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<BR>
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<H4><A NAME="display_popup">Source Pop-up Menus</A></H4>
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The Source Display has two pop-up menus. One is activated by clicking the
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right mouse button when the mouse cursor is over an executable line marker's
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hot spot. This pop-up menu provides access to:
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<DL>
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<DT>Set Tracepoint
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<DD>Opens the <A HREF="#tracedlg">Add/Edit Tracepoint Dialog</A>,
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which allows new tracepoints to be set and modification and
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deletion of existing tracepoints.
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</DL>
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<P>The other pop-up menu is activated by clicking the right mouse button
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anywhere else in the Source Display. It is only available when a variable
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or number in the display lies below the mouse cursor or is selected
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(by clicking the left mouse button and dragging the mouse to highlight
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the variable/number). The pop-up menu allows users to:
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<DL>
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<DT><A NAME="add_to_watch">Add <I>expr</I> to Watch</A>
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<DD>Adds the selected expression to the <A HREF="watch.html">Watch
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Window</A>, opening it, if necessary.
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<DT>Dump Memory at <I>expr</I>
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<DD>Opens a new <A HREF="memory.html">Memory Window</A> at the
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selected expression. If the expression is a variable, then
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the Memory Window is opened with memory addresses starting
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at the value of the variable.
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<DT>Set Tracepoint Range
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<DD>This option is only available when a range of lines is highlighted
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in the Source Display. It allows tracepoints with the same
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properties to be set at every executable line in the range. If
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any tracepoints exist in the range already, the debugger will
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ask if the properties of the existing tracepoint should be
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replaced with the properties of the range.
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</DL>
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</P>
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<H4><A NAME="status">Source Window Status Bars</A></H4>
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The Source Window has two status bars which inform the user of the
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status of the program (the "status bar") and the status of the Source
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Window.
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<P>The <A NAME="status_bar">Program Status Bar</A> (or simply "Status Bar")
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displays the status of the program. Common messages seen here include:
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<DL>
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<DT>No program loaded.
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<DD>No program has been loaded into target memory.
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<DT>Inspecting trace at <I>line/address</I>
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<DD>The debugger is inspecting the tracepoint at line
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<I>line</I> or address <I>address</I>. Use the
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<A HREF="#toolbar_exec">Tracing Control Buttons</A>
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to navigate through the trace buffer.
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</DL>
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<P>The Status Bar also displays some help information. For instance,
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the Status Bar will show the function of a button on the toolbar or
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the Source Display Status Bar as well as any keyboard shortcut for this
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button.</P>
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<BR>
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<H4><A NAME="status_mode">Source Display Status Bar</A></H4>
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current state of the Source Window: the name of the file displayed in
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| 304 |
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the Display, the name of the function in the Display which contains
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the PC for the current frame (if any), and the display mode.
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| 307 |
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<P>The <A NAME="file_selector">Source File Selector</A> is a dropdown
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menu which contains the names of all the files that were compiled into
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the program being debugged.</P>
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| 310 |
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|
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<P>Normally, the File Selector displays the name of the file currently being
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viewed, but any file from the dropdown menu may be selected for browsing.
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Simply select the file to view from the available choices (or type it directly
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into the File Selector) and the Source Window will load that file into
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| 315 |
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the Display. To return to the current tracepoint, simply press the
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<A HREF="#bottom_button">Bottom Frame Control Button</A>.</P>
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| 318 |
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<P>The <A NAME="function_selector">Source Function Selector</A> displays the
|
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name of the function containing the Source Window's PC, if one exists, but it
|
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may be used to browse any function in the current file. Simply type the name
|
| 321 |
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of the desired function into the Function Selector or select it from the
|
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dropdown menu. The Source Window's PC is updated to point at this function.
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To return to the current tracepoint, simply press the
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<A HREF="#bottom_button">Bottom Frame Control Button</A>.</P>
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|
|
| 326 |
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<P>The <A NAME="mode_selector">Source Display Mode Selector</A> displays
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the viewing mode of the current file/function shown in the Source
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Window Display.</P>
|
| 329 |
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|
|
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<P>The Display Mode Selector may be used to change the view of the current
|
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source file. The available display modes are
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<DL>
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<DT>SOURCE
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| 334 |
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<DD>The contents of the Display are shown as source code.
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If source code is not available (either because no debugging
|
| 336 |
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|
information is available or the source file is not found),
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| 337 |
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the Source Window will revert the Display Mode to "ASSEMBLY".
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| 338 |
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<DT>ASSEMBLY
|
| 339 |
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<DD>A disassembly of the target's memory is shown in the Display.
|
| 340 |
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Even assembly source files show a disassembly of target memory;
|
| 341 |
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|
to see the assembly source code, use the SOURCE mode. Note that the
|
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debugger can only display assmebly code on a function-by-function
|
| 343 |
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basis. It cannot display all the instructions generated from a single
|
| 344 |
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source file.
|
| 345 |
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<DT>MIXED
|
| 346 |
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|
<DD>The Display shows source code mixed with the assembler
|
| 347 |
|
|
instructions which were generated for those lines by the
|
| 348 |
|
|
compiler for the current funtion. Note that the addresses
|
| 349 |
|
|
of the assembly lines is not necessarily monotonically
|
| 350 |
|
|
increasing. If the source file associated with the function
|
| 351 |
|
|
cannot be found, the Source Window will revert to ASSEMBLY mode.
|
| 352 |
|
|
<DT>SRC+ASM
|
| 353 |
|
|
<DD>The Source Window Display is divided into two panes: an
|
| 354 |
|
|
assembly pane and a source pane. Tracepoints may be set/cleared
|
| 355 |
|
|
in either pane.
|
| 356 |
|
|
</DL>
|
| 357 |
|
|
<BR>
|
| 358 |
|
|
|
| 359 |
|
|
<H3><A NAME="search">Search Entry</A></H3>
|
| 360 |
|
|
The Search Entry facilitates searching for text in the Source Window Display. Simply enter the
|
| 361 |
|
|
text to be found into the Search Entry and press the Enter key on the keyboard to search
|
| 362 |
|
|
forwards in the Source Window Display (hold down ths Shift key to search backwards). If
|
| 363 |
|
|
a match is found, it is highlighted in the Source Window and the Program Status Bar
|
| 364 |
|
|
displays information about where the match was found.
|
| 365 |
|
|
|
| 366 |
|
|
<P>The Search Entry can also jump the Source Window to a specific line. Enter the line
|
| 367 |
|
|
number preceeded by an at-sign (@) into the Search Entry and press enter. If entered
|
| 368 |
|
|
line number is greater than the total number of lines in the Source Window Display,
|
| 369 |
|
|
the Display will jump to the end of the current file.</P>
|
| 370 |
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|
</BODY>
|
| 371 |
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</HTML>
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