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25 Applied Instructions (Block Data Operation)
25.3 BKCMP=, >, <, < >, <=, >= / Block Data Compare
613
FXCPU Structured Programming Manual
[Basic & Applied Instruction]
21
Applied Instructions
(Real Time
Clock Control)
22
Applied Instructions
(External Device)
23
Applied Instructions
(Extension
Function)
24
Applied Instructions
(Others)
25
Applied Instructions
(Block Data
Operation)
26
Applied Instructions
(Character
String Control)
27
Applied Instructions
(Data Operation 3)
28
Applied Instructions
(Data Comparison)
29
Applied Instructions
(Data Table
Operation)
30
Applied Instructions
(External Device
Communication)
2. 32-bit operation
(DBKCMP=, DBKCMP>, DBKCMP<, DBKCMP<>, DBKCMP<=, DBKCMP>=, DBKCMP=P, DBKCMP>P,
DBKCMP<P, DBKCMP<>P, DBKCMP<=P, DBKCMP>=P)
1) "2n" 32-bit binary data starting from the device specified by are compared with "2n" 32-bit binary
data starting from the device specified by , and the comparison result is stored in "2n" points starting
from the device specified by .
2) A constant can be directly specified in the device specified by .
3) The table below shows the comparison result for each instruction.
4) When the comparison result is ON (1) in all of "n" points starting from the device specified by , the
M8090 (block comparison signal) turns ON.
Instruction Comparison result ON (1) condition Comparison result OFF (0) condition
DBKCMP=
[ +1, ] = [ +1, ]
[ +1, ] ≠ [ +1, ]
DBKCMP>
[ +1, ] > [ +1, ] [ +1, ] ≤ [ +1, ]
DBKCMP<
[ +1, ] < [ +1, ]
[ +1, ] ≥ [ +1, ]
DBKCMP<>
+1, ] ≠ [ +1, ]
[ +1, ] = [ +1, ]
DBKCMP<=
[ +1, ] ≤ [ +1, ] [ +1, ] > [ +1, ]
DBKCMP>=
[ +1, ] ≥ [ +1, ]
[ +1, ] < [ +1, ]
EN ENO
d
s1
s2
n
Command
input
Head device storing comparison source data
Comparison value or device storing comparison value
Number of pieces of comparison data
Head device storing comparison result
DBKCMP=
*1
"n"
points
K1234
K5678
K40000
K5000
K4321
"n"
points
K5321
K3399
K6543
K5678
K1200
s1
]+1,[
s1
s1
]+3,[
s1
s1
]+2n-3,[
s1
+2
s1
]+5,[
s1
+4
+2n-4
s1
]+2n-1,[
s1
+2n-2
s2
]+1,[
s2
s2
]+3,[
s2
s2
]+2n-3,[
s2
+2
s2
]+5,[
s2
+4
+2n-4
s2
]+2n-1,[
s2
+2n-2
+0
Comparison result
+1
+2
+n-2
+n-1
"n"
points
OFF(0)
ON(1)
ON(1)
OFF(0)
ON(1)
d
>
*2
*2 An example of DBKCMP>.
K32000
"n"
points
K32000
K4321
K1234
K32000
K5678
+3,
+0
Comparison result
"n"
points
ON(1)
OFF(0)
OFF(0)
ON(1)
OFF(0)
=
*3
*3 An operation example of DBKCMP=
instruction is shown here.
+1
+2
+n-2
s1
[
+1,
]
s1
+2]
s2s2
[
s2
[
+1,
]
s2
+2n-3,
+4]
s2s2
[
+2n-4]
s2s2
[
+5,
+2n-1, +2n-2]
s2s2
[
d