IAI America ASEL User Manual

Page 145

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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.

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