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T1/T1S User’s Manual
7. Instructions
FUN 068 SHR1 1 bit shift right
Expression
Input
-
[ SHR1
A
]
-
Output
Function
When the input is ON, the data of register
A
is shifted 1 bit to the right (LSB direction). 0 is stored in the
left most bit (MSB). The pushed out bit state is stored in the carry flag (CF = S050). After the operation,
if the right most bit (LSB) is ON, the output is turned ON.
Execution condition
Input Operation Output CF
OFF No execution OFF
-
ON Execution When LSB = 1 ON Set or reset
When LSB = 0 OFF Set or reset
Operand
Name Device Re
ister Constant Index
X Y R S T. C. XW YW RW SW T C D I J K
A
Operation data
ÖÖÖÖÖÖÖÖÖ Ö
Example
When X007 is changed from OFF to ON, the data of RW15 is shifted 1 bit to the right.
The figure below shows an operation example.
(MSB) (LSB)
FEDCBA9876543210
RW15 0100001010001010
CF
RW15 0010000101000101 0
(Result)
0 R001 is turned ON
CTi Automation - Phone: 800.894.0412 - Fax: 208.368.0415 - Web: www.ctiautomation.net - Email: info@ctiautomation.net
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