Mitsubishi MELSEC-A series, Programming Manual

Page: 230 / 508

7. APPLICATION INSTRUCTIONS
7
−
28
MELSEC-A
Program Examples DROR
Program which rotates the contents of A0 and 1 three bits to the right when XC turns
on.
DRCR
Program which rotates the contents of A0 and 1 three bits to the right when XC turns
on.
P K
DMOV 1 A0
X00A
X00C
P K
DROR 3
0
8
•
Coding
0 LD X00A
1 DMOVP K1 A0
8 LD X00C
9 DRORP K3
12 END
P K
DMOV 1 A0
X00A
X00C
P K
DRCR 3
0
8
•
Coding
0 LD X00A
1 DMOVP K1 A0
8 LD X00C
9 DRCRP K3
12 END
Contents of B0
before execution
(n
=
1)
Contents of B0
when n
=
1
(n
=
2)
Contents of B0
when n
=
2
(n
=
3)
Before execution
After execution
Progress
To carry flag
To carry flag
To carry flag
* Before execution, carry flag is either 1 or 0.
Carry flag
(M9012)
Before execution
Progress
Contents of B0
before execution
(n
=
1)
Contents of B0
when n
=
1
(n
=
2)
Contents of B0
when n
=
2
(n
=
3)
To B31
To B31
To B31
Carry flag
(M9012)
After execution