Sharp MZ-800 - Page 106

CHAIN
Format
Explanation
CHAIN ‘‘[<device name>:] <filename>”’
<device name> must be CMT or RAM.
Abbreviated Format
CH.
The CHAIN statement transfers execution from the current program to another
program in a file. The CHAIN statement can also open a file. Executing a CHAIN
statement has the same effect as executing the RUN command in a program except
that CHAIN passes variables and arrays from the current program to the called
program.
<device name> may be omitted when the default device or the device specified
in the DEFAULT statement is to be used.
10 A=1
20 B=2
30 CHAIN ‘‘CMT:PROG”’
40 END
In this sample program, control is passed on line 30 to the program, from file
“‘PROG”’ on the cassette. The values of variables A and B, 1 and 2, are passed
to the called program.
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