Справочник Пользователя для Mitsubishi Electronics FXCPU
27 Applied Instructions (Data Operation 3)
27.4 SFR / Bit Shift Right with Carry
664
FXCPU Structured Programming Manual
[Basic & Applied Instruction]
27.4
SFR / Bit Shift Right with Carry
Outline
This instruction shifts 16 bits stored in a word device rightward by "n" bits.
1. Format and operation, execution form
2. Set data
3. Applicable devices
Function and operation explanation
1. 16-bit operation (SFR/SFRP)
1) 16 bits stored in a word device specified by
are shifted rightward by "n" bits.
Specify a value in the range from "0" to "15" as "n".
If "16" or larger value is specified as "n", 16 bits are shifted rightward by the remainder of "(n) divided by
(16)".
For example, when "n" is set to "18", 16 bits are shifted rightward by 2 bits as "2" remains when "18" is
divided by "16".
If "16" or larger value is specified as "n", 16 bits are shifted rightward by the remainder of "(n) divided by
(16)".
For example, when "n" is set to "18", 16 bits are shifted rightward by 2 bits as "2" remains when "18" is
divided by "16".
2) The ON (1) or OFF (0) status of the "n"th bit (bit "n-1") in the word device specified by
is transferred
to the carry flag M8022.
FX
3U(C)
FX
3G(C)
FX
3S
FX
2N(C)
FX
1N(C)
FX
1S
FX
U
/FX
2C
FX
0N
FX
0(S)
Instruction
name
Operation
Execution
form
Expression in each language
Structured ladder/FBD
ST
SFR
16 bits
Continuous
SFR(EN,n,d);
SFRP
16 bits
Pulse
SFRP(EN,n,d);
Variable
Description
Data type
Input
variable
variable
EN
Execution condition
Bit
Number of times of shift (0
≤ n ≤ 15)
ANY16
Output
variable
variable
ENO
Execution state
Bit
Device storing data to be shifted.
ANY16
Operand
type
Bit Devices
Word Devices
Others
System user
Digit specification
System
user
Special
unit
Index
Cons
tant
Real
Number
Character
String
Pointer
X Y M T C S D
.b KnX KnY KnM KnS T C D R U
\G
V Z Modifier K H
E
"
"
P
z
z
z
z z z z z
z
z z
z z
z
z
z z z z z
z
z z
z
SFR
EN
n
n
ENO
d
SFRP
EN
n
n
ENO
d
SFR
EN
n
ENO
d
Number of times
of shift
of shift
Command
input
input
Device storing data to be shifted.