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Keyword Dictionary
DIR IS
electronic disc
D I F.: I :::
II
location:
::·::t'1Et'1
11
D I F.: I S
II •••••
> PPOGPAt'1S> DATACOt'1t'1>
HP:::OO~J:
::<t'1Et'1
11
D I
F.:
I
S
II
HP:::OOO: ::·::t'1Et'1
11
statement
Specifies the current directory. This is the only command that can change the current directory. If wild
cards are used,
D I
F.:
I S
will only match directories; it will skip over files when trying to find a match.
Once a directory is specified, subsequent use of filenames only, rather than pathnames, will cause files to
be created and opened (assigned to) as children of the specified directory.
Errors: 63, 21 2
FRAME?
high-level modem
function
F
F.: FIt'1
E
?
Checks for a framing error. Returns a 0 if the last
t'10D
I t·U had no framing error, or a 1 if there was a
framing error. Remember that
t'10D I
t'~$
returns not only the contents of the modem receive buffer, but
also any data echoed by
t'10DOUT. FF.:At'1E?
reports a framing error for data returned by
t'10D
ItU
from either source.
Errors: 150, 151, 153
HOOK?
high-level modem
function
HOOK?
IF t·WT HOOK?
THEt·~
D I SP
II
t'1odefol on-hook
II
Checks if modem is on-hook. Returns a 0 if the modem is on-hook (not on phone line), or a 1 if the
modem is off - hook (using phone line).
If the modem is pulse dialing,
HOOK?
should not be used until after dialing has been completed. Pulse
dialing works by actually putting the modem on-hook briefly during every pulse of the digit being dialed.
During pulse dialing, either adaptively or explicitly,
HOOK?
can return a 0 that does not reflect the true
status of the modem.
Errors: 1 50, 1 51, 1 53
68
I
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