Reference Guide
G
Keyboard Shortcuts G-1
G. Keyboard Shortcuts
Each key on the calculator performs so many different functions that only the most fundamental ones are actually
shown on the keyboard (on the keys themselves or on the space around the keys). The following is the complete list
of the “hidden” functions of the calculator’s keyboard.
Notation: In this appendix, there are two ways of showing key presses:
@` means: press Right Shift, release it, then press `.
@&` means: while holding Right Shift, press `.
On-key combinations
The table lists functions that include the $ key. These are not programmable.
Keystroke Definition
ƒ& $
Holding these two keys during the entire turn-on routine prevents all added
libraries from being attached AND prevents 'STARTUP' from being
executed. This is useful if the calculator seems to hang up during turn-on.
$& C
Warmstart. Clears the stack, PICT, LASTARG, and other temporary things
like those, and turns off USER Mode. Doesn’t clear any variables. Useful
when the calculator is taking too long to finish a complicated function and
pressing $ doesn’t seem to interrupt it. Also useful if you lock out the
keyboard with a bad USER mode set of key assignments.
$& D
Displays the current ROM’s version and build numbers, then enters Factory
Test Mode. Press
$
&
C
to exit
$& F
Like $& D but a friendlier and more complete set of tests, designed for
the end-user. Follow the instructions on the screen. Do NOT format the SD
card unless you wish to lose all of its contents!
$& A& F
Clears the calculator’s RAM, returning everything to the factory state.
Anything in port 2 (flash ROM) will remain untouched.
$& —
Print Screen. Send the current display to the current printer
$& +
Adjusts the display contrast up.
$& -
Adjusts the display contrast down.
$& R
Begins a “remote control” mode, where the calculator transmits the screen
bitmap through the USB port and accepts keypresses through the same way.
$& S
Terminates the remote control mode.
$& Ó ($&
9
)
Forces the very next system interrupt to be ignored. This is intended to allow
the user to shutdown rapidly repeating alarms, but it must be noted that
keystrokes also cause a system interrupt, so be sure NOT to press any key
between pressing $& Ó and the next repeating alarm, or the alarm
will come due and continue repeating.