Omron CS1G/H-CPUxxH Instructions Manual page 343

Data Shift Instructions
Description
Flags
Precautions
Examples
3-9-8 DOUBLE SHIFT RIGHT: ASRL(571)
Purpose
Ladder Symbol
Variations
Applicable Program Areas
322
ASR(026) shifts the contents of Wd one bit to the right (from leftmost bit to
rightmost bit). "0" will be placed in the leftmost bit and the contents of the
rightmost bit will be shifted into the Carry Flag (CY).
Name Label
Error Flag ER
Equals Flag =
Carry Flag CY
Negative Flag N
When ASR(026) is executed, the Error Flag and the Negative Flag will turn
OFF.
If as a result of the shift the contents of Wd is zero, the Equals Flag will turn
ON.
When CIO 000000 is ON, word CIO 0100 will shift one bit to the right. "0" will
be placed in CIO 010015 and the contents of CIO 010000 will be shifted to the
Carry Flag (CY).
Shifts the contents of Wd and Wd +1 one bit to the right.
Variations Executed Each Cycle for ON Condition
Executed Once for Upward Differentiation
Executed Once for Downward Differentiation Not supported
Immediate Refreshing Specification
Block program areas
OK OK
Operation
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.
OFF
Wd
ASRL(571)
Wd Wd: Word
Step program areas Subroutines
OK
Section 3-9
ASRL(571)
@ASRL(571)
Not supported
Interrupt tasks
OK