Thinget XC3-24RT-E - Page 163

Applied Instructions
SUB D10 D12 D14
X0
S1· S2· D·
The relationship of the flag’s action and vale’s positive/negative is shown below:
Function
（D10）—（D12）→（D14）
z appoint the soft unit’s content, subtract the soft unit’s content appointed by in the
format of algebra. The result will be stored in the soft unit appointed by . (5-(-8)=13)
z The action of each flag, the appointment method of 32 bits operation’s soft units are both
the same with the preceding ADD instruction.
z The importance is: in the preceding program, if X0 is ON, SUB operation will be
executed every scan cycle
S1·
S2·
D·
UB] [S
16 bits instruction：SUB 32 bits instruction：DSUB
Suitable Models:
XC1、XC3、XC5
Zero M8020
Borrow M8021
Flag
Carry M8022
Suitable Device
Word
Device
Bit
Device
X
Y
M
S
T
C
Dn.m
D
FD
DM
DX
DY
DS
TD
CD
K/H
S1·
S2·
D·
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