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7-120

ECALL(P)

Subroutine calls between program files (ECALL(P))

ECALL(P)

Function

(1) Executes the subroutine program of the pointer designated by Pn in the designated program 

file name when the ECALL (P) instruction is executed.  The ECALL(P) instruction can be 
used to call a subroutine program that uses a local pointer from a different program file.

File name : Name of the program file to be called (character string)

Pn

: Head pointer number of a subroutine program (Device name)

 to 

: Number of the device to be passed as an argument to a subroutine program (bits, BIN 16 bits, BIN 32 bits)

Setting 

Data

Internal Devices 

R, ZR

J

\

U

\G

Zn

Constants

Other

P

Bit

Word

Bit

Word

K, H

$

File name

––

––

––

Pn

––

––

––

––

 to 

 (Other 

than F)

––

––

Basic

 to 

 to 

S1

S5

S1

S5

Command

Command

Command

Command

ECALLP

Pn

Pn

ECALL

File name

ECALL

Pn

File name

File name

Pn

ECALLP

File name

ECALL

ECALLP

ECALL

ECALLP

S1

S5

S1

S5

Main routine  

program

ECALLABCPn

END

Subroutine  
program

RET

Pn

[File name: MAIN]

[File name: ABC]