Type of
instruction
CALL
FCALL
SR
Differential
instruction
Operates in the same way as differential
instructions used between MC and MCE.
Refer to "Operation of differential instructions
between MC and MCE".
Same as on the left.
Other
instructions
Not executed. Same as on the left.
(Note 1) The following items are included in differential instructions.
1) DF (leading edge differential) instruction
2) Count input for CT (counter) instruction
3) Count input for UDC (up-down counter) instruction
4) Shift input for SR (shift register) instruction
5) Shift input for LRSR (left and right shift register) instruction
6) Differential execution type high-level instruction (instruction specified by p and instruction name)
■
Precautions for programming
● The CALL/FCALL instruction can be written in another subroutine program or step ladder, in
addition to the main program. The CALL/FCALL instruction with the same number can be
written repeatedly.
● Note that if a subroutine is executed repeatedly, it will take more time for operations to be
processed.
■
Flag operations
Name Description
SR7
SR8
(ER)
Turns ON when the 16th subroutine executes the CALL/FCALL instruction while subroutines
are nested in 16 levels.
3.36 CALL (Local Subroutine Call), FCALL (Output OFF Type Local
Subroutine Call)
3-112 WUME-FP7CPUPGR-12
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