Mitsubishi MELSEC-A Series Programming Manual page 232

7. APPLICATION INSTRUCTIONS
Program Examples DROL
Program which rotates the contents of A0 and 1 three bits to the left when XC turns
on.
X00A
P H
DMOV 80000000
0
X00C
8
Before
To B0
execution
Carry flag
(M9012)
(n = 1)
To B0
(n = 2)
To B0
After
(n = 3)
execution
DRCL
Program which rotates the contents of A0 and 1 three bits to the left when XC turns
on.
X00A
P H
0 DMOV 80000000
X00C
8
Before execution
To carry flag
(n = 1)
To carry flag
(n = 2)
To carry flag
After
(n = 3)
execution
• Coding
0
A0
1
P K
8
DROL 3
9
12
• Coding
0
A0
1
P K
8
DRCL 3
9
12
* Before execution, carry flag is either 1 or 0.
7 − 30
MELSEC-A
LD X00A
DMOVP H80000000
LD X00C
DROLP K3
END
Contents of
B31 before
execution
Contents of
B31 when
n = 1
Contents of
B31 when
n = 2
LD X00A
DMOVP H80000000
LD X00C
DRCLP K3
END
Carry flag
(M9012)
A0
A0