List of commands
1. This is a partial list of commands that may be entered in their
full-length form (i.e., press ":", then type the command).
Many of these commands may also appear in the file "log.cnf"
which is read when LOG starts up.
2. In this list, "ON/OFF" means either the word "ON", to turn an
option on, or "OFF", to turn an option off, or no word at all,
to "toggle" the option between on and off.
3. Many commands have single-key equivalents. The bindings shown
here are the defaults, which may be changed by the MACRO command.
4. The following commands, when used in the form of single-key
commands, may be used even in the middle of drawing a wire,
selecting a rectangle, etc.:
ALTPOSN GLOW OFF SIM/ONOFF/POWER
ARROW GLOWSOLDER ON SNAP
AVOID GRID PAGE n TRACE
CLOSEFILES HELP PROBE TRACEFILE
CONFLICT HOME QUIET VERBOSE
DOTS INVISIBLE RESET ZOOMDN
DUMP INVLABEL RESPONSE ZOOMUP
Other commands will cause any other operation in progress to
abort before the new command begins.
5. Here is the complete list of LOG commands:
ABORT (Control-C) Abort the current command, mode, or screen.
ALTPOSN ("," key.) Scroll to an alternate location on the
page. LOG essentially maintains two current locations
on the page, like the "mark" in the Emacs text editor;
this command exchanges them.
ARROW Revert to the standard arrow-shaped cursor. This undoes
any previous PROBE or GRID command.
AUTOWINDOW Toggle a new window management mode. In this mode
whenever text input into the newcrt window is necessary
the newcrt window automatically rises in front of any
windows that occlude it. Once the window is no longer
needed, it returns to its previous condition.
BOX ("b" key.) Draw a dashed box.
CAT (Shift-"C" key.) Switch to the Catalog screen.
CENTER Shift the entire circuit so that it is centered in the
LOG circuit universe, i.e., so that a Home command will
home to the center of the circuit. Note that this
actually moves the circuit elements, whereas scrolling
with the knob just changes your view on the elements.
CLEAR Delete the entire circuit page. Use with caution!
Close the "dump" and "trace" files, if they are open.
These files will automatically be re-opened (for
appending) if they are again used. The dump file is
used by the "Dump" command in the Scope. The trace
file is used by various LOG debugging commands.
CLOSEH Enter "close-horizontal-space" mode, similar to OPENH
except that it deletes the contents of the box you draw
and shifts other things to the left. DANGEROUS!
CLOSEV Enter "close-vertical-space" mode, similar to OPENV.
CNFG ("c" key.) Switch gate-tapping mode to open a gate's
configuration screen when it is tapped.
COLOR screen-color red-value green-value blue-value
COLOR color-name screen-color
Customize the LOG color scheme. LOG's colors are
determined in two steps. A "palette" of up to 16
available colors is specified by the first form of
the command. "Screen-color" is either a number from
0 to 15, or one of the names listed below. Each of
the red, green, and blue values run from 0 (black)
to 255 (full intensity). The second form of the
COLOR command determines which of these 16 colors
is used for various kinds of objects. The color
names defined by LOG are listed in a later section.
0 GRAY 4 MRED 8 BLACK 12 DCYAN
1 RED 5 ORANGE 9 PINK 13 DRED
2 GREEN 6 CYAN 10 DYELLOW 14 LGRAY
3 YELLOW 7 WHITE 11 XGREEN 15 CRED
On eight-color screens, all sixteen names or numbers
may still be used; LOG combines similar colors
internally. The effect will be that changing the
red/green/blue content of one of the above colors
may affect other colors as well on an 8-color screen.
Turn conflict reporting on or off. In Digital LOG,
node conflicts are reported if one gate tries to drive
a node to "1" while another is driving it to "0".
AnaLOG does not report conflicts. Conflicts are
shown by a bright pulsating red. If conflicts are
turned off, they are not visible on the screen. If
an integer "n" is given, conflicts are turned on and
the number of time steps to wait before reporting a
given conflict is set to "n". For example, if n=0,
conflicts are reported immediately. For n=1, each
conflict must remain for at least two simulation
timesteps before it is considered interesting.
The default is conflict reporting on, with n=1.
COPY ("/" key.) Enter copy-area mode.
Turn conflict-stopping mode on or off. When this mode
is on, the simulation stops (as if you had given an
OFF command) the instant any conflict is reported.
The CONFLICT command can be used to select how long a
conflict must persist before it is reported. This
mode is off by default.
DEFINE (Shift-"D" key.) Display the simulator's definition for
a gate-kind, specified either on the command line or by
touching a representative gate. Pressing shift-"D" in
the Catalog screen also displays the definition for the
gate the cursor is over.
DEL ("d" key.) Enter delete mode.
Control dots-visible mode. When this is on (default),
red connection dots on gates are always visible. When
this is off, red dots are usually visible only on pins
that are not connected to wires.
DUMP Write out a "debugging dump" to the printer. For LOG
Close any current dump file, then select "filename.text"
as the new dump file. If this file already exists, new
text will be appended to it.
EXAMINE ("e" or "x" key.) Enter Probe mode temporarily.
The cursor returns to normal as soon as you click the
right button. This is in contrast to the PROBE command,
which turns the Probe cursor on until you explicitly
turn it off again.
EXIT Exit from LOG. Also in the Misc menu, or on the Shift-Q,
Shift-Z, and Control-D keys.
EXTRACT Delete and re-paste the entire contents of the page. If
LOG's electrical connectivity information becomes corrupt,
this will usually fix it.
FAST ("f" key.) Turn on fast mode. This happens
automatically after a certain amount of time passes with
no mouse or keyboard inputs.
GET gatename gatename gatename ...
Load the specified gates into the Catalog screen from
the gate library. The gate names may include wildcard
characters '*' and '?'.
("g" key.) Turn glow mode on or off.
Turn glowing-solder mode on or off. This controls
whether solder dots are visible while in GLOW mode.
It is on by default; turning glowing-solder off may
improve simulation performance in GLOW mode.
GRID (Shift-"G" key.) Change the cursor to a cross-hair
shape. If the cursor is already a cross-hair, change
it back to the regular arrow cursor.
GROUP n "Name"
Set the name that appears on the top of page number "n"
of the Library screen. The number "n" must be from 0
to 8. If the "Name" argument is omitted, this command
instead selects which page number the Library screen
will display next time it is entered.
HELP ("?" key.) Display this file using the Chipmunk
HOME ("h" key.) Reset the scroll and zoom amounts to the
default position on the page.
IDENTIFY Used by the LOG-to-NTK conversion tool.
("i" key.) Turn "Invisible" mode on or off. In this
mode, wires and most gates are invisible. However, labels,
boxes, and switch/indicator gates are visible. Also,
operations that edit the circuit are disallowed. Thus,
a user can switch into Invisible mode and then operate a
simulated "front panel" without confusion or fear of
changing the circuit.
(Shift-"I" key.) Turn "Invisible Labels" mode on or
off. In this mode, labels and boxes are invisible.
("l" key.) Create a new label on the page. If a
"message" argument is supplied, a label with the
specified text is created on the lower-left corner of
the screen. If no argument is supplied, LOG interactively
enters the text for the label.
LIBRARY ("l" key or LIBR item in the Catalog screen.) Switch
directly to the Gate Library screen.
(Shift-"L" key.) Load the specified circuit file onto
the current page, replacing anything that was on that
page before. If no file name is specified, LOG displays
a list of files in the current directory and asks the
user to select one, or type the name. If the file name
is '*', LOG simply asks the user to type the name. The
shift-L key is bound to "LOAD *".
LOGNTK Start the LOG-to-NTK conversion tool.
LOGNTK: parameter value
Set up a configuration parameter for the LOGNTK tool.
Commands of this form usually appear in the file
LPLOT: parameter value
Set up a configuration parameter for the PLOT tool.
Commands of this form usually appear in the file
MACRO key-name command
Associate the specified command with a key. The key-name
may be a single letter or other character (lower-case
letters represent unshifted keys; upper-case letters
represent shifted keys); or one of the words "bs", "tab",
"sp" (space bar), or "cr" (Return or Enter); or a control
key of the form "^A" or "^["; or a three-digit decimal
ASCII code. The "command" may be any of the commands
listed here, and may include arguments. If you give only
a key-name, the computer displays the command that is
currently bound to the key. MACRO with no arguments
displays a list of all current key bindings.
Bring a gate in from the catalog by name, and put it in
the drawing area. A shorthand for using the mouse in the
the CAT and LIBR screens. If the gate-name contains
wildcard characters, multiple gates may be loaded into
the Catalog but only one of them will be created on the
("m" key.) Turn printing markers on or off. The
printing markers are used mainly by the "PLOT" command;
they indicate the area of the circuit page which is to
be fitted into the printed page. The printing markers
appear on the corners of the visible screen, and you
can move them by regular editing operations to bracket
any rectangular area of the page.
Display the specified message in the "message area" of
the screen. The message area runs down the left edge
of the screen; messages are drawn in yellow overlaying
the drawing area.
MIRX Select "mirror-in-X" gate-tapping mode. When a gate is
tapped in this mode, it is flipped across its vertical
axis. This works both in the menu area and in the
drawing area, although some gates (such as switches)
have special behaviors when tapped in the drawing area.
MIRY Select "mirror-in-Y" gate-tapping mode.
MOVE ("m" key.) Move an area of the diagram. This is
similar to deleting the area with DEL, then pasting
it back in a new location with PASTE.
See and/or change the "current file name" for the
circuit page. This is the file name that will be
used by default in later "SAVE" commands.
OFF Turn simulation OFF.
ON Turn simulation ON.
OPENH Enter open-horizontal-area mode. Sweep out a rectangle;
everything to the right of the lefthand edge of the
rectangle is moved to the right by the amount of the
width of the rectangle. Wires straddling the left edge
are stretched appropriately. BEWARE: This command
may corrupt the LOG data structures if used in such a
way as to break or make electrical connections in the
circuit. Unless you really know what you are doing,
use the cut-and-paste method of moving things.
OPENV Enter open-vertical-area mode, similar to OPENH.
PAGE n Switch the display to circuit page "n", from 1 to 9.
"n" may also be "+" or "-", to switch to the next or
previous numbered page.
PASTE Enter Paste mode.
PLOT Run the circuit plotting tool.
POPUP menu position kind command message
Change one of the locations in the pop-up menus. "Menu"
is a number that selects which menu (1=Frills, 2=Editing,
3=Cursor, 4=Misc); "position" is an integer from 1 to 8
that identifies which spot in the menu: [ 1 3 5 7 ]
[ 2 4 6 8 ]
"Kind" is normally zero; "command" is the command (from
this list) that is to be executed if the menu is selected,
enclosed in "quotes" if it contains spaces; and "message"
is the wording for that menu element. If "message" begins
with '*' or '#', it will be colored red or light blue,
otherwise it will be green.
PROBE ("." key.) Change to the Probe cursor. If already
using the Probe cursor, change back to an arrow. In
Probe mode, holding the cursor near a wire or gate pin
displays the value on that electrical node, in a
simulator-dependent way. Holding the cursor near a
gate in the drawing or menu areas displays the name
of the gate on the screen. Tapping a gate or node
opens it for configuring, if it has anything to
configure. (Neither AnaLOG nor Digital LOG nodes
are configurable, but many gates are.) Tapping and
configuring a gate in the menu area sets the defaults
for newly created gates pulled out of that menu slot.
Finally, tapping out in the drawing area draws a
yardstick. See also the EXAMINE command (on the
"e" and "x" keys) which selects a temporary
QUIET ("q" key.) Turn sound prompting on or off.
Read in a circuit from a file. This is similar to the
LOAD command, but it rebuilds the circuit's connectivity
information as it loads, rather than simply reading it
from the file. As a result, READ is much slower than
LOAD, but it is far more robust in case the file is
corrupt or out of date. For example, if you run LOGED
and add more pins to a gate, then try to LOAD a circuit
diagram containing that gate, LOG may crash since the
connectivity recorded in the file is out of date. But
the READ command will read the file with no problems.
In general, use the fast LOAD command unless you have
a good reason not to.
REFRESH (Space bar.) Refresh the screen.
RESET (Shift-"R" key.) Send a Reset signal to the simulator(s).
This resets simulation time back to zero, and has other
simulator-dependent effects. For AnaLOG, it resets all
voltages to their initial values. For Digital LOG,
nothing happens except that the TO/FROM signal "Reset",
if used, gets a brief "1" pulse.
RESPONSE min max rate
Set response-time parameters. With no arguments,
displays current parameters. Initial values are
2, 50, and 35, respectively. During editing, LOG
tries to check the mouse and keyboard at least every
"min" centi-seconds. If the user stops editing,
this rate slowly increases until the maximum of
"max" centi-seconds. The rate of increase is
one unit per "rate" centi-seconds of idle time.
ROT Select "Rotate by 90 degrees" gate-tapping mode. When
a gate is tapped in this mode, it rotates 90 degrees
counter-clockwise. This works both in the menu area and
in the drawing area, although some gates (such as
switches) have special behaviors when tapped in the
Save circuit page(s). If a name is given, saves the
current page in "name.LGF". If the name is "*", prompts
the user to enter the name to save. If no name is
given, re-saves all circuit pages which have been
since last saved or loaded. Shift-"S" is bound
to "SAVE *".
SCOPE ("s" key.) Switches to the Scope screen.
SHELL shell-command ( or: !shell-command )
(Also, "!" as a single-key command.) Start a sub-Shell.
If a shell-command is provided the shell executes this
one command and returns. If no shell-command is provided,
you get an interactive sub-shell. Type quit or press
control-D to return from the sub-shell.
SIM (or ONOFF or POWER)
Turn simulation ON or OFF (toggling).
SNAP ("$" key.) Turn "snap-to-grid" mode on or off. Default
is off. In this mode, the cursor arrow always jumps
to the nearest spot on the LOG editing grid rather
than moving smoothly.
STATUS Enter the "Status" display. Use the knob or arrow
keys to switch among various pages. A page-name may
also be given with the STATUS command:
LOG General system status
MEMORY Memory usage status
MACRO Keyboard mappings
16 Digital simulator
32 Analog simulator
LPLOT Plotting tool
LOGNTK LOG-to-NTK tool
STEP n Turn simulation OFF, if necessary, then step the
simulation by one time-step. If an integer "n" is
provided, executes "n" time-steps before stopping.
TAPMODE (menu selection, or shift-"M" key.) Select the next
gate-tapping mode, in order: ROT, MIRX, MIRY, CNFG.
TOOL name Send a "select" command to the specified tool. Various
tools respond to this in various ways; the default is
to ignore the signal. (The Digital LOG simulator, tool
name "16", responds by putting up a configuration
screen of digital-LOG parameters.) If a TOOL command
is given with no "name" argument, it puts up a screen of
available tool names and "selects" whatever tool the
user chooses with the mouse. The shift-"T" key calls
up an interactive TOOL command.
TRACE Turn the debugging "wallpaper" mode on or off. Please
don't do this unless a LOG maintainer is there. Trace
output goes to the "Trace" file, which by default is an
Close any current trace file, then select "filename.text"
as the new trace file. If this file already exists, new
text will be appended to it.
VERBOSE ("v" key.) Turn informational messages on or off. These
messages are mostly of the "Glow mode is now OFF"
VMESSAGE Similar to MESSAGE, but works only if in
YARDSTICK Draw a "yardstick", useful for measuring the spacing of
objects in your diagram.
ZOOMDN Zoom down, to view more of the circuit page.
ZOOMUP Zoom up, to view part of the circuit in greater
- (510) 643 4005
- UC Berkeley / CS Division / 387 Soda Hall / Berkeley CA 94720