Omron SYSMAC CJ - REFERENCE MANUAL 08-2008 Reference Manual page 429

Data Shift Instructions
Applicable Program Areas
Operand Specifications
Description
Flags
Precautions
Block program areas
OK OK
Area
CIO Area
Work Area
Holding Bit Area
Auxiliary Bit Area
Timer Area
Counter Area
DM Area
EM Area without bank
EM Area with bank
Indirect DM/EM
addresses in binary
Indirect DM/EM
addresses in BCD
Constants
Data Registers
Index Registers
Indirect addressing
using Index Registers
RRNL(577) shifts all bits of Wd and Wd +1 to the right (from leftmost bit to
rightmost bit) not including the Carry Flag (CY).
Wd+1
Name Label
Error Flag ER
Equals Flag =
Carry Flag CY
Negative Flag N
When RRNL(577) is executed, the Error Flag will turn OFF.
If as a result of the shift the contents of Wd and Wd +1 are zero, the Equals
Flag will turn ON.
Step program areas Subroutines
OK
CIO 0000 to CIO 6142
W000 to W510
H000 to H510
A448 to A958
T0000 to T4094
C0000 to C4094
D00000 to D32766
E00000 to E32766
En_00000 to En_32766
(n = 0 to C)
@ D00000 to @ D32767
@ E00000 to @ E32767
@ En_00000 to @ En_32767
(n = 0 to C)
*D00000 to *D32767
*E00000 to *E32767
*En_00000 to *En_32767
(n = 0 to C)
---
---
---
,IR0 to ,IR15
–2048 to +2047 ,IR0 to –2048 to +2047 ,IR15
DR0 to DR15, IR0 to IR15
,IR0+(++) to ,IR15+(++)
,–(– –)IR0 to, –(– –)IR15
Wd
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.
ON when the leftmost bit is 1 as a result of the shift.
OFF in all other cases.
Section 3-9
Interrupt tasks
OK
Wd
389