Applied Instructions
INC D0
X0
D·
DEC D0
X1
D·
Function & Action
（D0）＋1→(D0)
（D0）－1→(D0)
z On every execution of the instruction the device specified as the destination has its
current value incremented (increased) by a value of 1.
z In 16 bits operation, when +32，767 is reached, the next increment will write -32，767 to
the destination device. In this case, there’s no additional flag to identify this change in the
counted value.
D·
z On every execution of the instruction the device specified as the destination has its
current value decremented (decreased) by a value of 1.
z When -32，768 or -2，147，483，648 is reached, the next decrement will write +32，767
or +2，147，483，647 to the destination device.
D·
1、Increment [INC]
2、Decrement [DEC]
[INC] & [DEC]
16 bits instruction：INC、DEC 32 bits instruction：DINC、DDEC
Suitable Models:
XC1、XC3、XC5
Zero M8020
Borrow M8021
Flag
Carry M8022
Word
Device
Bit
Device
X
Y
M
S
T
C
Dn.m
D
FD
DM
DX
DY
DS
TD
CD
K/H
D·
95
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