Bit Shift Left - Toshiba PROSEC T1-16S User Manual

FUN 069 SHL1
Expression
Input [ SHL1 A ] Output
Function
When the input is ON, the data of register A is shifted 1 bit to the left (MSB direction). 0 is stored in
the right most bit (LSB). The pushed out bit state is stored in the carry flag (CF = S050). After the
operation, if the left most bit (MSB) is ON, the output is turned ON.
Execution condition
Input
OFF No execution
ON Execution When MSB = 1
When MSB = 0
Operand
Name
X
A Operation data
Example
When X008 is changed from OFF to ON, the data of RW15 is shifted 1 bit to the left.
The figure below shows an operation example.
(MSB)
F E D
1 1 1 0 0 1 1 1 0 0 1 1 1 0 1 0
CF
1 1 1 0 0 1 1 1 0 0 1 1 1 0 1 0 0

1 bit shift left

Operation
Device
Y R S T. C. XW YW RW SW T
C B A 9 8 7 6 5
R002 is turned ON
Output
OFF
ON
OFF
Register
C
(LSB)
4 3 2 1 0
RW15
RW15 (Result)
0
Basic Hardware and Function
7. Instructions
CF
Set or reset
Set or reset
Constant Index
D I J K
6F3B0253
165