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Call – Delta Electronics Extension Digital I/O Module DOP-EXIO14RAE User Manual

Page 86

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Appendix D Use of Application Instructions|DOP-EXIO Series

Revision March, 2008, Doc. Name: 2007PDD23000014

D-5

Mnemonic

Operands Function

CALL

S

Call Subroutine

Bit Devices

Word Devices

X Y M S K H

KnX

KnY

KnM KnS

T

C

D

E

F

y

Note:

1. Operand S can designate P.

2. P can be modified by index register E, F.

16-bit instruction (3 Steps)

CALL

Continuous
execution

32-bit instruction

- -

- -

y

Flags: None

Operands:

S

: The pointer of call subroutine.

Explanations:
1. Edit the subroutine designated by the pointer after FEND instruction.
2. The number of pointer P, when used by CALL, cannot be the same as the number designated by

CJ instruction.

3. If only CALL instruction is in use, it can call subroutines of the same pointer number with no limit

on times.

4. Subroutine can be nested for 5 levels including the initial CALL instruction. (If entering the sixth

level, the subroutine won’t be executed.)