Standard
RLL Instructions
5–59
Standard RLL Instructions
Accumulator Logic Instructions
XOR
A aaa
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
in the accumulator. The discrete status
flag indicates if the result of the XOR is
zero.
Operand Data Type DL05 Range
A aaa
V memory V All (See page 4–28)
Pointer P All (See page 4–28)
Discrete Bit Flags Description
SP63 Will be on if the result in the accumulator is zero
SP70 on when the value loaded into the accumulator by any instruction 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 (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
0010100001111010
01000010010000100000010000000000
V2000
287A
0000000000000000
0000000000000000
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 1631 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
Acc.
Acc.
00101000011110100000000000000000
Acc.
6A38
V2010
4242
DirectSOFT
01101010001110000000000000000000
STR
$
SHFT
SET
X
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
Exclusive Or
(XOR)
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