Shift Instruction; N-Bit Shift To Right Or Left Of 16-Bit Data (Sfr(P),Sfl(P)) - Mitsubishi MELSEC Q Series Programming Manual

SFR(P),SFL(P)
7.3

Shift instruction

7.3.1

n-bit shift to right or left of 16-bit data (SFR(P),SFL(P))

SFR(P),SFL(P)
SFR, SFL
SFRP, SFLP
Setting
Data
D
n
Function
SFR
(1) Causes a shift to the right by n bits of the 16-bit data from the device designated at
The n bits from the upper bit are filled with 0s.
(2) When a bit device is designated for
specified by digit specification.
7-46
Command
Command
: Head number of the devices where shift data is stored (BIN 16 bits)
D
n : Number of shifts (0 to 15) (BIN 16 bits)
Internal Devices
R, ZR
Bit Word
b15 b14 b13 b12 b11b10 b9
D
1 1 1 0 1 1 1
When n=6:
b15 b14 b13 b12 b11b10 b9
0 0 0 0 0 0 1
D
Filled with 0s.
Y1B Y18 Y17
1 0 1 0 1
When n = 4:
Y1B Y18 Y17
0 0 0 0 1
Filled with 0s.
High
Basic
performance
indicates an instruction symbol of SFR/SFL.
J \
U \G
Bit Word
b8 b7 b6 b5 b4 b3 b2 b1
0 1 1 1 0 1 1 1
b8 b7 b6 b5 b4 b3 b2 b1
1 1 0 1 1 1 0 1
, a right shift is executed within the device range
D
Y14 Y13 Y10
0 1 0 1 0 1 0
Y14 Y13 Y10
0 1 0 1 0 1 0
Process
Redundant Universal
n
D
P
D n
Constants
Zn
K, H
––
b0
0
Carry flag
(SM700)
b0
1 1
Carry flag
(SM700)
1
LCPU
Other
––
––
.
D