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7-115

RET

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.6 Structure cre

ation instructions

7

.6.4 Retur

n from subr

outin

e progr

ams (

RET)

Return from subroutine programs (RET)

RET

Function

(1) Indicates end of subroutine program

(2) When the RET instruction is executed, returns to the step following the CALL (P), FCALL 

(P), ECALL (P), EFCALL (P) or XCALL instruction which called the subroutine program.

Operation Error

(1) In any of the following cases, an operation error occurs, the error flag (SM0) turns ON, and 

an error code is stored into SD0.
 • Following the execution of the CALL(P), FCALL (P), ECALL (P), EFCALL (P) or XCALL 

instruction, an END, FEND, GOEND, or STOP instruction is executed before the 
execution of the RET instruction.

(Error code: 4211)

 • An RET instruction is executed prior to the execution of the CALL (P), FCALL (P), ECALL 

(P), EFCALL (P) or XCALL instruction.

(Error code: 4212)

Setting 

Data

Internal Devices 

R, ZR

J

\

U

\G

Zn

Constants

Other

Bit

Word

Bit

Word

––

––

RET

RET

Main routine  

program

CALL    Pn

END

Subroutine  

program

RET

Pn