Automationdirect.com DirectLOGIC DL205 Series, User Manual

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DL205 User Manual, 4th Edition, Rev. B
5–79
Chapter 5: Standard RLL Instructions - Logical
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A
B
C
D
Exclusive Or (XOR)
The Exclusive Or instruction is a 16-bit instruction that
performs an exclusive OR of the value in the lower 16 bits of the
accumulator and a specified V-memory location (Aaaa). The
result resides in the accumulator. The discrete status flag
indicates if the result of the XOR is zero.
NOTE: The status flags are only valid until another instruction that uses the same flags is executed.
In the following example, when X1 is on, the value in V2000 will be loaded into the
accumulator using the Load instruction. The value in the accumulator is exclusive ORed with
V2006 using the Exclusive Or instruction. The value in the lower 16 bits of the accumulator
are output to V2010 using the Out instruction.
XOR
A aaa
XOR (V2006)
Handheld Programmer Keystrokes
LD
V2000
X1
Load the value in V2000 into
the lower 16 bits of the
accumulator
XOR
V2006
XOR the value in the
accumulator with
the value in V2006
OUT
V2010
Copy the lower 16 bits of the
accumulator to V2010
0 0 1 0 1 0 0 0 0 1 1 1 1 0 1 0
0 1 0 0 1 1 1 0 0 1 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0
V2000
2 8 7 A
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
The upper 16 bits of the accumulator
will be set to 0
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
Acc.
Acc.
0 0 1 0 0 1 0 0 0 1 1 1 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Acc.
6A38
V2010
4 E 4 2
Direct SOFT
0 1 1 0 1 0 1 0 0 0 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
STR
$
1
B
ENT
SHFT
ANDST
L
3
D
SHFT
AND
V
2
C
0
A
0
A
0
A
ENT
SHFT
AND
V
2
C
0
A
0
A
ENT
6
G
OUT
GX
SHFT
AND
V
2
C
0
A
1
B
0
A
ENT
OR
Q
SHFT SHFT
SET
X
þ
þ
þ
þ
230
240
250-1
260
Discrete Bit Flags Description
SP63 Will be on if the result in the accumulator is zero
SP70 Will be on if the result in the accumulator is negative
Operand Data Type DL230 Range DL240 Range DL250-1 Range DL260 Range
A aaa aaa aaa aaa
V-memory V
All
See memory map
All
See memory map
All
See memory map
All
See memory map
Pointer P -
All V-memory.
See memory map
All V-memory.
See memory map
All V-memory.
See memory map
DS Used
HPP Used