Siemens SIMATIC IM 151/CPU - Page 177

Instruction List
B-43
ET 200S Interface Module IM 151/CPU
A5E00058783-01
B.31 Shift Instructions
Shift the contents of ACCU1 or ACCU1-L by the specified number of places to the
left/right. If an address ID is not specified, shift by the number specified in
ACCU2-LL. Positions that become free are padded with zeros or a sign. The last
bit shifted is in condition code bit CC 1.
In-
struc-
tion
Address
ID
Description
Length
in
Words
Typical Execution Time in
s
SLW Shift the contents of ACCU1–L to the left 1 2.0
SLW 0 to 15 0.7
SLD Shift the contents of ACCU1 to the left 1 3.1
SLD 0 to 32 3.1
SRW Shift the contents of ACCU1–L to the right 1 2.0
SRW 0 to 15 0.7
SRD Shift the contents of ACCU1 to the right 1 3.1
SRD 0 to 32 3.1
SSI Shift the contents of ACCU1–L with sign to
th i ht
1 1.8
SSI 0 to 15
the right
0.7
SSD Shift the contents of ACCU1 with sign to
th i ht
1 3.1
SSD 0 to 32
the right
3.2
Status word for: SLW, SLD, SRW,
SRD, SSI, SSD
BR A1 A0 OV OS OR STA RLO /FC
Instruction depends on: – – – – – – – – –
Instruction controls: – Yes Yes Yes – – – – –