IAI America XSEL-KE - Manual (Page 311)

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Appendix
14. How to Use Subroutines
Description
If the same processing is performed multiple times in one program, the applicable steps are grouped and
called together. This group of steps is called a subroutine. Subroutines are used to shorten program steps
and make programs easier to read. Up to 99 subroutines can be used in one program. Subroutine calls
can be nested by up to 15 times.
How to Use
Use the following commands to declare/call subroutines:
EXSR Call
subroutine
BGSR Declare start of subroutine (declare start of group of steps)
EDSR Declare end of subroutine (declare end of group of steps)
Example of Use
Note
Jumping out of a subroutine to a TAG outside the subroutine using a GOTO command is prohibited.
Consolidate the same tasks into
one location.
Subroutine