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6F3B0250
Basic Hardware and Function
225
7. Instructions
FUN 137 SUBR Subroutine entry
Expression
÷-
[ SUBR (
n
) ]
--ê
Function
This instruction indicates the begging of a subroutine.
Execution condition
Input Operation Output
-
Execution
-
Operand
Name Device Re
g
ister Constant Index
X Y R S T. C. XW YW RW SW T C D I J K
n
Subroutine
number
Ö
(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.
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