IAI America ASEL User Manual
Page 145
Part 2 Programs
Chapter 3 Explanation of Commands
123
Part 2 Programs
z
EXSR (Execute subroutine)
Command, declaration
Extension condition
(LD, A, O, AB, OB)
Input condition
(I/O, flag)
Command,
declaration
Operand 1
Operand 2
Output
(Output, flag)
Optional
Optional
EXSR
Subroutine
number
Prohibited
CP
[Function] Execute the subroutine specified in operand 1.
A maximum of 15 nested subroutine calls are supported.
(Note)
This command is valid only for subroutines within the same program.
[Example 1]
EXSR
1
Execute subroutine 1.
:
:
EXIT
BGSR
1
Start subroutine 1.
:
:
:
EDSR
End subroutine 1.
[Example 2]
LET
1
10
Assign 10 to variable 1.
EXSR
*1
Execute the content of variable 1 (subroutine 10).
z
BGSR (Start subroutine)
Command, declaration
Extension condition
(LD, A, O, AB, OB)
Input condition
(I/O, flag)
Command,
declaration
Operand 1
Operand 2
Output
(Output, flag)
Prohibited
Prohibited
BGSR
Subroutine
number
Prohibited
CP
[Function] Declare the start of the subroutine specified in operand 1.
[Example 1] Refer to the section on EXSR command.
(Note)
Using a GOTO command to branch out of or into a BGSR-EDSR syntax is prohibited.