HP 50g User's Reference Manual
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Brand: HP
Category: Calculator
Type: Advanced user's reference manual
Model: HP 48gII , HP 49g+ , HP 50G
Pages: 693
3-54 Full Command and Function Reference
…&9
ALRM DELALARM
Input/Output:
Level 1/Argument 1 Level 1/Item 1
n
index
→
See also: FINDALARM, RCLALARM, STOALARM
DELAY
Type: Command
Description: Delay Command: Specifies how many seconds the calculator waits between sending lines of
information to the printer.
Setting flag –34 directs printer output to the serial port. In this case, flag –33 must be clear.
If flag –34 is set and transmit pacing is enabled (nonzero) in reserved variable IOPAR, then
XON/XOFF handshaking controls data transmission and the delay setting has no effect.
x
delay
specifies the delay time in seconds. The default delay is 0 seconds. The maximum delay is 6.9
seconds. (The sign of x
delay
is ignored, so –4 DELAY is equivalent to 4 DELAY.)
The delay setting is the first parameter in the reserved variable PRTPAR.
A shorter delay setting can be useful when the calculator sends multiple lines of information to
your printer (for example, when printing a program). To optimize printing efficiency, set the delay
just longer than the time the printhead requires to print one line of information.
If you set the delay shorter than the time to print one line, you may lose information. Also, as the
batteries in the printer lose their charge, the printhead slows down, and, if you have previously
decreased the delay, you may have to increase it to avoid losing information. (Battery discharge
will not cause the printhead to slow to more than the 1.8-second default delay setting.)
Access: …µ
DELAY
Flags: I/O Device (–33), Printing Device (–34), I/O Device for Wire (–78)
Input/Output:
Level 1/Argument 1 Level 1/Item 1
x
delay
→
See also: CR, OLDPRT, PRLCD, PRST, PRSTC, PRVAR, PR1
DELKEYS
Type: Command
Description: Delete Key Assignments Command: Clears user-defined key assignments.
The argument x
key
is a real number rc.p specifying the key by its row number, its column number,
and its plane (shift). For a definition of plane, see ASN.
Specifying 0 for x
key
clears all user key assignments and restores the standard key assignments.
Specifying S as the argument for DELKEYS suppresses all standard key assignments on the user
keyboard. This makes keys without user key assignments inactive on the user keyboard. (You can
make exceptions using ASN, or restore them all using STOKEYS.) If you are stuck in User mode
— probably with a “locked” keyboard — because you have reassigned or suppressed the keys
necessary to cancel User mode, do a system halt (“warm start”): press and hold ‡ and C
simultaneously, releasing C first. This cancels User mode.
Deleted user key assignments still take up from 2.5 to 62.5 bytes of memory each. You can free
this memory by packing your user key assignments by executing RCLKEYS 0 DELKEYS
STOKEYS.
Access: !&H
KEYS DELKEYS
!°L
MODES KEYS DELKEYS
( °is the left-shift of the Nkey).
Flags: User-Mode Lock (–61) and User Mode (–62) affect the status of the user keyboard.