irsim-analyzer(3) IRSIM USER'S MANUAL irsim-analyzer(3)NAMEirsim-analyzerSYNOPSIS
analyzer node...
DESCRIPTION
The analyzer provides a graphical interface to irsim; displaying the
state of the nodes (or vectors) node...
Every invocation of the analyzer command adds a new set of signals to
the display list.
The view is split into 3 regions: a trace window, a text window, and a
banner. The banner displays the name of the simulation (from the sim
file), and the pull-down menu headers. The text window is a 1-line
window used to request and display certain information.
The trace window displays the following information:
left side: names of the signals (nodes/vectors) displayed.
top side: On the left and right sides, the time corresponding to the
left and right edges of the trace window. In the center,
the time of the current cursor position.
right side: Values of the signals under the cursor.
MENU FUNCTIONS
zoom:
in Zooms in by a factor of 2 (magnify).
out Zooms out by a factor of 2 (reduce).
base: Changes the numerical base used to display the value of the
selected vector (see below how to select a trace) to one of the
following:
bin (base 2)
oct (base 8)
hex (base 16)
window:1
delta T Allows to determine the difference (in time) between
any two edges. First click the mouse (any button)
to the right of the first edge, then to the left of
the second edge. The time of the two edges as well
as their difference will be shown in the text
window. As long as the button remains depressed, a
line is shown between the two edges. Times are all
shown in ns.
move to Moves the left edge of the trace window to the
specified time. The time is requested in the text
window.
set width Sets the number of ns. that will be displayed. The
time is requested in the text window.
name length Since the most important differentiating information
in a long signal name is usually at the end, the
analyzer will display the last 15 characters of a
signal name. This option allows changing the
maximum number of characters that will be displayed,
which must be in the range [8-256].
scroll Usually the analyzer displays simulation activity by
scrolling the traces to the left, so the last
changes are shown. The scroll feature
enables/disables this scrolling, effectively
freezing the traces. When scrolling is enabled, a
check mark is shown on this menu entry.
print: These options control the generation of a PostScript file
suitable for obtaining a hardcopy of the trace window.
file Requests the filename to hold the PostScript output.
Hitting <return> will use the default name (shown in
parens). Hitting <ctrl-C> will abort generation of the
file. The following menu entries control the aspect of
the PostScript file; a check mark in the corresponding
menu entry implies that the feature will be included in
the output.
banner Generate a banner, showing the simulation name and
current date.
legend Generate (in a separate page) a description of the
signals displayed: the complete names of nodes (since
the first characters may be stripped), and for vectors
the names of the nodes of wich it is composed.
times Generate a time ruler at the bottom of the traces.
outline Draw an outline around the trace window.
MOUSE FUNCTIONS
The analyzer provides various functions depending on where in the
window a mouse button is depressed. All buttons have the same meaning,
except inside the scrollbar. Pressing a mouse button in the following
regions will provide:
Signal names:
The signal name where the button was depressed will be
highlighted and will be moved to the position where the button
is released, scrolling the other traces if necessary. If the
button is released under the same signal on which it was
pressed, that signal will become selected. The selected signal
is always underlined, and some information regarding that signal
is printed in the text window.
If the button is released outside the traces area (above or
below) the signal will be removed from the display. It can only
be added again by invoking the analyzer command.
Left Arrow:
The traces are scrolled left by half a page (move back in time).
Right Arrow:
The traces are scrolled right by half a page (move forward in
time).
Double Left Arrow:
Scrolls traces left by a full page.
Double Right Arrow:
Scrolls traces right by a full page.
Scrollbar:
The left button allows to stretch the left side of the window,
thereby zooming in/out by an arbitrary amount. The right side
of the window remains the same.
The right button allows to stretch the right side of the window,
thereby zooming in/out by an arbitrary amount. The left side of
the window remains the same.
The middle button moves the whole view back and forth in time.
The magnification factor remains the same.
Traces
The cursor is moved to the time-step where the mouse is clicked.
Some lack of accuracy in selecting the time may become apparent
due to screen resolution round off.
Holding down the shift key simultaneously with the mouse button
will not move the cursor, but rather show the value of the
signal at the time-step where the mouse is clicked. The value
is printed in the text window using the following format:
name @ time:value=value,input=status
The value is always shown in binary, regardless of the base
selected for that signal. The status is a string showing which
nodes where inputs at that time. Nodes that were inputs have an
i in their respective position, otherwise an -.
Cursor Values:
The selected signal value is highlighted and, when the button is
released, the value of the signal is expanded in the text
window. This is useful for displaying each of the bits that
make up a vector. The information printed has the following
format:
name:value=value input=status
where value and status have the same meaning as above.
Banner:
Clicking on the banner brings the window to the foreground.
Box on Banner:
Clicking in the little box on the left side of the banner
iconizes the analyzer window. To de-iconize the window, simply
click any button within the icon.
Banner Menus:
Pressing a mouse button in one of the banner menus (on the right
side) will pull down the corresponding menu.
X DEFAULTS
The analyzer application uses the appropriate resource specification at
startup time to customize the appearance of its window. The format for
a resource specification in the .Xdefaults file is:
[name.]resource: value
For the analyzer, the available names are irsim and analyzer. The
available resources are:
background Specifies the traces window background color. The
default is black.
foreground Specifies the text color, or the background of
everything else besides the traces window. The default
is white.
geometry Specifies the default geometry (window size and screen
location) of the graphic window. The default Xgeometry
is "=1000x300+0+0".
reverseVideo Specifies whether the foreground and background colors
are to be reversed (on monochrome displays only). The
default is off.
font Specifies the fixed-width font displayed. The default
is 6x13.
borderWidth Specifies the width of the border (in pixels). The
default is 2.
borderColor Specifies the border color when the window is selected.
The default is black.
highlight Specifies the color used for highlighting. The default
is red (color displays only).
traceColor Specifies the color in which the traces are drawn. The
default is white.
bannerBg Specifies the background color for the banner. The
default is white.
bannerFg Specifies the foreground (text) color for the banner.
The default is black.
SEE ALSOirsim(1)irsim-analyzer(3)
