Reference Guide
Full Command and Function Reference 3-37
CLEAR
Type: Command
Description: Clear Command: Removes all objects from the stack or history.
To recover a cleared stack or history, press …¯ (the right-shift of the Mkey) before
executing any other operation. There is no programmable command to recover the stack or
history.
Access: …· (·is the right-shift of the ƒkey).
Input/Output:
Level
n
/Argument 1 ... Level 1/Argument
n
Level
n
/Item 1 ... Level 1/Item
n
obj
n
...obj
1
→
See also: CLVAR, PURGE
CLKADJ
Type: Command
Description: Adjust System Clock Command: Adjusts the system time by x clock ticks, where 8192 clock ticks
equal 1 second. If x is positive, x clock ticks are added to the system time. If x is negative, x clock
ticks are subtracted from the system time. If X>10^12, it will be changed to 10^12 ticks (which is
approximately 3.87 years).
Access: …Ó
TOOLS
LL
CLKADJ
( Ó is the right-shift of the 9 key).
Input/Output:
Level 1/Argument 1 Level 1/Item 1
x
→
See also: →TIME
CLLCD
Type: Command
Description: Clear LCD Command: Clears (blanks) the stack display.
The menu labels continue to be displayed after execution of CLLCD.
When executed from a program, the blank display persists only until the keyboard is ready for
input. To cause the blank display to persist until a key is pressed, execute FREEZE after
executing CLLCD. (When executed from the keyboard, CLLCD automatically freezes the display.)
Access: !°L
OUT CLLCD
( °is the left-shift of the Nkey).
Input/Output: None
Example: Evaluating
« CLLCD 7 FREEZE »
blanks the display (except the menu labels), then
freezes the entire display.
See also: DISP, FREEZE
CLOSEIO
Type: Command
Description: Close I/O Port Command: Closes the serial port, and clears the input buffer and any error
messages for KERRM.
When the calculator turns off, it automatically closes the serial port, but does not clear KERRM.
Therefore, CLOSEIO is not needed to close the port, but can conserve power without turning
off the calculator.
Executing Kermit protocol commands automatically clears the input buffer; however, executing
non-Kermit commands (such as SRECV and XMIT) does not.
CLOSEIO also clears error messages from KERRM. This can be useful when debugging.