Rotate Instructions - Siemens CPU 412-1 Instruction Manual

Rotate Instructions

Rotate the contents of ACCU1 to the left or right by the specified number of places. If no address identifier is specified, the contents of
ACCU2-LL are used as the number of places. The last bit shifted is loaded into condition code bit CC1.
Instruc- Instruc- Address Address
tion ID
RLD Rotate the contents of ACCU1 to
the left the left
RLD 0 ... 32
RRD Rotate the contents of ACCU1 to
the right the right
RRD 0 ... 32
Status word for: RLD, RRD
Instruction evaluates:
Instruction affects:
S7-400 Instruction List
A5E00267845-01
Length Length
Description Description
in in
Words
1
1
BR CC1
– –
– Yes
Execution Time in ms
CPU 412 CPU 414
0.1 0.06
0.1 0.06
CC0 OV OS
– – –
0 0 –
Rotate Instructions
CPU 416 CPU 417
0.04 0.03
0.04 0.03
OR STA RLO
– – –
– – –
/FC
–
–
77