Instructions fun 080 rtr n bit rotate right – Toshiba 6F3B0253 User Manual
Page 176
6F3B0253
174
T1-16S User’s Manual
7. Instructions
FUN 080
RTR
n bit rotate right
Expression
Input
−
[ A RTR n
→
B ]
−
Output
Function
When the input is ON, the data of register A is rotated n bits to the right (LSB direction), and stored
in B. 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
Register
Constant Index
X
Y
R
S
T.
C. XW YW RW SW T
C
D
I
J
K
A Source
√
√
√
√
√
√
√
√
√
√
√
√
n Shift bits
1 - 16
B Destination
√
√
√
√
√
√
√
√
√
√
Example
When X007 is changed from OFF to ON, the data of RW18 is rotated 5 bits to the right and the
result is stored in RW20.
The figure below shows an operation example.
(MSB)
(LSB)
F
E
D
C
B
A
9
8
7
6
5
4
3
2
1
0
RW18
0 1 0 0 0 0 1 0 1 0 0 1 1 0 1 0
CF
RW20
1 1 0 1 0 0 1 0 0 0 0 1 0 1 0 0
1
(Result)
R001 is turned OFF
∗
∗