Load Command - IBM 5100 Basic Reference Manual

(
(
(
LOAD
file-num[l~;~!
lJ
r,dev-addressl
BASIC
SOURCE
LOAD COMMAND
The LOAD command causes a previously saved file to be loaded into the work area
from tape for modification and/or execution. LOAD can also be used to prepare
the work area for the entry from the keyboard of a new BASIC program, data, or
key group. The syntax of the LOAD command is as shown:
LOAD
file_num[l~;~!
lJ
r,dev-addressl
BASIC
SOURCE
where:
file-num
is an integer value. An entry of
a
indicates that a new file will be
entered from the keyboard. An entry greater than
a
indicates the file number of
the file (saved on tape) to be loaded.
KEYx, KEYS, DATA, BASIC, or SOURCE specifies the type of data to be loaded
into the work area. BASIC is the default when loading from the keyboard.
BASIC or SOURCE is the default when loading from tape.
dev-address is the address code of the device containing a saved file to be
loaded. The default is the built-in tape unit (address E80). Auxiliary tape unit
device address is E40.
Entering a LOAD command of LOADO clears the entire work area, including all key
groups. A LOAD command specifying BASIC or DATA as the second parameter will
only clear the specified program from the work area, without altering existing key
groups. If the new file type is a KEYx file, the new key file is added to the work
area without altering the existing work area. If the KEYx files already exist
in storage, the loaded KEYx files will replace the old ones. The work area
is assigned the file type specified in the LOAD command. Line
a
will display READY
when in a BASIC program file type, DATA for a data file type, and KEYx for key
file type. You can begin entering the specified type of lines into the work area. The
line type entered (BASIC, DATA, or KEYx) must be the same type of file definition
as the work area or the line will not be accepted and an error message will appear
on line O. KEYS and SOURCE are not valid options when loading from the key-
board (KEYx is valid). Note that the LOADx, DATA command uses a 324-
character buffer.
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