List of Commands
1. A complete list of LOGED top-level commands follows. Some
commands are discussed in detail in later sections.
2. Command and gate names are case-insensitive. Commands can
usually be abbreviated to one or two letters.
3. In addition to these commands, you can execute any Shell
command by preceding it with a '!' character, or enter an
interactive sub-shell by typing '!' alone. Type QUIT to
the sub-shell to return to LOGED.
CONNECT num num num ...
Connect the specified pins together in the current
gate. When an instance of the gate is made in LOG,
these pins will be forced to the same electrical node.
For example, the CROSS gates in the standard library
emulate crossing wires by having pairs of connected
pins. The pins of a gate are divided into connectivity
classes; initially every pin is in its own class. The
CONNECT command with two or more numbers joins the
classes of the specified pins. CONNECT with one pin
number unconnects the pin, splitting it back into its
own class. CONNECT with no arguments displays the
current connectivity of the gate.
Make a copy of the current gate under the specified
name. All aspects of that gate are identical to the
current gate, except the name. The new copy becomes
the new current gate.
DEF Edit the simulator's definition for this gate. Exact
effect depends upon the current simtype of the gate.
This command only works of the relevant simulator is
available. The type 0, 1, and 7 DEF commands always
work; type 16 and 32 commands work only if DIGLOG or
ANALOG have been permed, respectively. (Note that
ANALOG actually supports both simulators.)
DELETE Delete the current gate. Given a name, deletes all
gates which match the name.
DO name command-line
For each gate that matches the specified name, make
it the current gate and execute the LOGED command
shown. This command must not delete or rename the
gate; to delete multiple gates, use DELETE directly.
DRAW Edit the current gate's picture. Defined below.
DUMP Print a "data sheet" for the current gate on the laser
printer. If a file name is given, the PostScript for
the data sheet is written to the file.
EDIT Edit the current gate's information using the text
editor, CAGED. Given a name, edits all gates which
match the name. The information is written into a
temporary text file as if by the WRITE command;
CAGED is run on the file; when the editor returns,
the file is reloaded as if by a READ command.
Turn the specified flag on or off for the current gate.
Flag names are case-insensitive and may be abbreviated.
NOFLIP This disables flipping or rotation of
the gate. Tapping on the gate always
acts as if CNFG mode were selected.
TOGGLE The gate is a toggle switch. When an
instance is tapped, it always mirrors
about its (original) y-axis. The gate
can still be rotated in the menu area.
VISIBLE The gate is visible even in Invisible
NAMED The gate has an editable signal name,
like TO or FROM. Should be used only
for simtype 1 gates.
NRIGHT The gate's name is on the right, as in
the TO gate. Used with NAMED, above.
NOSOLDER When plotted, the gate should not have
solder blobs added for T-connections
involving the pins.
USER1 A user-definable flag. A simulator, tool,
or individual gate program can interpret
this flag in any way desired. Currently,
this flag is unused.
USER2 Another user-definable flag.
With no argument, this command just displays the current
GATE Switch to a new current gate. If the specified gate does
not exist, a new "blank" gate is created. (Often it is
easier to create a new gate by copying an existing,
similar one.) The NEXT command can be used to switch to
a new gate with no danger of accidentally creating one.
GROUP n Set the current gate's group number to "n", an integer
from 0 to 8. With no argument, displays the current
group number. The group number determines which
library page the gate appears in. Group numbers for
the standard libraries are:
0 General-purpose gates
1 Generic digital gates
2 7400's series digital gates
4 Analog gates
5 Digital VLSI gates
6 Digital ACTEL gates
8 (obsolete gates)
HELP Run the Chipmunk Help System on this help file.
LABEL Edit the current gate's labels and attributes. See
LIB Display a list of all gates, or the gates which match
the specified names.
LOAD file-name gate-name gate-name ...
Load the gates in a file into memory. If gate-names are
specified, only those gates which match the names are
loaded. By default a ".gate" extension is added to the
name; to load from a textual file, specify ".text"
MEMORY Display the amount of memory free.
NEXT Switch to the next gate in alphabetical order, or to the
next gate which matches the specified name.
PREV Switch to the previous gate in alphabetical order, or to
the previous gate that matches the specified name.
QUIT (or EXIT.) Leave the LOGED program. If any gates have
been changed, you are given the option to save them first.
READ Much the same as LOAD, except the default file name
extension is ".def", typically a file written by the
"Write" option of the digital hierarchy compiler.
Change the name of the current gate to the new name.
If a gate by that name already exists in memory, you
are given the option to replace it.
SAVE file-name gate-name gate-name ...
Save all gates in memory, or only the specified gates,
into a file. With no arguments, saves all gates back
into the original file. A ".gate" extension is appended
by default. If the extension is not ".gate", the file
is written in a textual format readable by humans.
SIMTYPE n Set the simulator number of the gate to "n". This is
an integer from 0 to 255 which identifies the simulator
responsible for the gate. Currently assigned simtypes
0 General-purpose, "inert" gates. Used
labelling (e.g., ARROW) and connection
(e.g., CRUNCH) gates.
1 Signal-name gates. Pin 1 of the gate
is connected to a certain signal name,
which is either hard-wired (as in VDD
and GND) or configurable (as in TO
7 Self-sufficient Pascal gates. The
code which defines this gate is given
complete access to LOG's simulator
interface. For example, the TIME gate
is a general-purpose simulation timing
and performance monitor.
16 Digital gates. Simulation definition
is written in a simple language specific
to the digital simulator. This language
includes a CALL statement for calling
more general Pascal procedures to
simulate the gate.
32 Analog gates. Definition consists of
the name of a Pascal procedure for
simulating the gate.
33 Analog current-mode simtype. This type
is used internally by the analog simulator
to support current meters.
The gate's simtype defines which procedure is called
when you give a DEF command. This command is defined
in greater detail below.
WRITE Similar to SAVE, except the default file extension is
".text", and if no arguments are given, the current
gate is saved in a file named after the gate.
- john [dot] lazzaro [at] gmail [dot] com