Toshiba 6F3B0253 - Manual (Page 209)

6F3B0253
Basic Hardware and Function
207
7. Instructions
FUN 137 SUBR Subroutine entry
Expression
−
[ SUBR (n) ]
−−
Function
This instruction indicates the begging of a subroutine.
Execution condition
Input Operation Output
- Execution -
Operand
Name Device Register Constant Index
X Y R S T. C. XW YW RW SW T C D I J K
n Subroutine
number
√
(Note)
Example
The begging of the subroutine number 8 is indicated.
Main program Subroutine
| | [ CALL N.008 ] [ SUBR (008)]
[ RET ]
Note
•
The possible subroutine number is 0 to 15 (T1) or 0 to 255 (T1S).
•
Refer to the CALL instruction (FUN 128) and the RET instruction (FUN 129).
•
The SUBR instruction can be programmed only in the program type ‘Subroutine’.
•
Nesting of subroutine is not allowed. That is, the CALL instruction cannot be used in a
subroutine.
•
No other instruction cannot be placed on the rung of the SUBR instruction.