Ror (Right Rotation Of Data) - Panasonic FP7 Series Command Reference Manual

8.11 ROR (Right Rotation of Data)

8.11 ROR (Right Rotation of Data)

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Ladder diagram
■
Available operation units (●: Available)
Operatio
bit
n unit
i
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List of operands
Operand Description
D The device address where the data to be rotated is stored
The device address where the number of rotation bits is stored, or the constant (Available data
n
range: 0 to 255)
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Available devices (●: Available)
Operan
d
W W
X Y
D ● ●
n ● ●
(Note 1) Cannot be specified when the operation unit is 16-bit integer (US).
(Note 2) Only 16-bit devices, 32-bit devices, and integer constants can be modified. (Real number constants,
and character constants cannot be specified.)
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Outline of operation
● This instruction rotates the data specified by [D] to the right (to the low bit position), by the
number of bits specified by [n] (decimal specification).
● Only the lower 8 bits in data are available for [n]. The rotation amount is specified between 0
and 255 bits.
● (Rotation amount - 1) bits are output to SR9 (CY).
● When the operation unit is 16 bits (US), if [n] is either 0 or a multiple of 16, the rotation
amount is regarded as 0, and this instruction is not executed.
● When the operation unit is 32 bits (UL), if [n] is either 0 or a multiple of 32, the rotation
amount is regarded as 0, and this instruction is not executed.
8-22
US
●
16-Bit device:
W W W S D L
R L S D T D
● ● ● ●
● ● ● ●
SS UL
●
32-Bit
device:
(Note 1)
TS TE
U W
WI
C C
M O
S E
● ● ● ●
● ● ● ● ●
SL SF
Real
Integer numbe
r
D
IX K H SF
Ｕ
F
●
● ● ●
WUME-FP7CPUPGR-12
DF
St
rin
Index
g
modifie
r
(Note 2)
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