Double Rotate Right: Rorl(573) - Omron SYSMAC CJ - REFERENCE MANUAL 08-2008 Reference Manual

Data Shift Instructions
Flags
Precautions
Examples

3-9-12 DOUBLE ROTATE RIGHT: RORL(573)

Purpose
Ladder Symbol
Variations
Name
Error Flag ER
Equals Flag =
Carry Flag CY
Negative Flag N
When ROR(028) is executed, the Error Flag will turn OFF.
If as a result of the shift the contents of Wd is zero, the Equals Flag will turn
ON.
If as a result of the shift the contents of the leftmost bit of Wd is 1, the Nega-
tive Flag will turn ON.
Note It is possible to set the Carry Flag contents to 1 or 0 immediately before exe-
cuting this instruction, by using the Set Carry (STC(040)) or Clear Carry
(CLC(041)) instructions.
When CIO 000000 is ON, word CIO 0100 and the Carry Flag (CY) will shift
one bit to the right. The contents of CIO 010000 will be shifted to the Carry
Flag (CY) and the Carry Flag contents will be shifted to CIO 010015.
Shifts all Wd and Wd +1 bits one bit to the right including the Carry Flag (CY).
RORL(573)
Wd
Variations Executed Each Cycle for ON Condition
Executed Once for Upward Differentiation
Executed Once for Downward Differentiation Not supported
Immediate Refreshing Specification
Wd
Label
OFF
ON when the shift result is 0.
OFF in all other cases.
ON when 1 is shifted into the Carry Flag (CY).
OFF in all other cases.
ON when the leftmost bit is 1 as a result of the shift.
OFF in all other cases.
Wd
Wd: CIO 0100
Instruction executed once
Wd: Word
Section 3-9
Operation
RORL(573)
@RORL(573)
Not supported
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