Omron SYSMAC CS Series, Reference Manual, Page: 429 / 1405

389
Data Shift Instructions
Section 3-9
Applicable Program Areas
Operand Specifications
Description 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).
Flags
Precautions 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.
Block program areas Step program areas Subroutines Interrupt tasks
OK OK OK OK
Area Wd
CIO Area CIO 0000 to CIO 6142
Work Area W000 to W510
Holding Bit Area H000 to H510
Auxiliary Bit Area A448 to A958
Timer Area T0000 to T4094
Counter Area C0000 to C4094
DM Area D00000 to D32766
EM Area without bank E00000 to E32766
EM Area with bank En_00000 to En_32766
(n = 0 to C)
Indirect DM/EM
addresses in binary @ D00000 to @ D32767
@ E00000 to @ E32767
@ En_00000 to @ En_32767
(n = 0 to C)
Indirect DM/EM
addresses in BCD *D00000 to *D32767
*E00000 to *E32767
*En_00000 to *En_32767
(n = 0 to C)
Constants ---
Data Registers ---
Index Registers ---
Indirect addressing
using Index Registers ,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+1 Wd
Name Label Operation
Error Flag ER OFF
Equals Flag = ON when the shift result is 0.
OFF in all other cases.
Carry Flag CY ON when 1 is shifted into the Carry Flag (CY).
OFF in all other cases.
Negative Flag N ON when the leftmost bit is 1 as a result of the shift.
OFF in all other cases.