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Chapter 12: Programming
251
7312ENG.DOC CH 12 Programming, English Julie Hewlett Revised: 07/29/98 12:17 PM Printed: 05/19/99 9:02
AM Page 251 of 32
8"" (from the
Program editor only)
When
prgm
name is encountered during execution, the next
command that the program executes is the first command in
the subroutine. It returns to the subsequent command in the
first program when it encounters either
Return
or the implied
Return
at the end of the second program.
Notes about Calling Programs
• Variables are global.
• label used with
Goto
and
Lbl
is local to the program where
it is located. label in one program is not recognized by
another program. You cannot use
Goto
to branch to a
label in another program.
•
Return
exits a subroutine and returns to the calling
program, even if it is encountered within nested loops.
Executing a Program
The 8
EXEC
(execute) menu lists in alphabetical order all
created programs. From this list, select the program that you
want to execute. The program name is pasted to the cursor
location on the Home screen. Pressing b begins executing
the program. Pressing b after a program is completed
returns you to the Home screen.
The 8
EXEC
menu labels the first 10 items using
1
though
9
,
then
0
. All other programs are still included in the list, but are
not labeled with a number. To select a menu item, press the
number associated with it or highlight the item with the cursor
keys, and then press b.