DL205 User Manual, 4th Edition, Rev. D
5-80
Chapter 5: Standard RLL Instructions
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D
Exclusive Or Double (XORD)
The Exclusive Or Double is a 32-bit instruction
that performs an exclusive OR of the value in the
accumulator and the value (Kaaa), which is an
8-digit (max) constant. The result resides in the
accumulator. Discrete status flags indicate if the
result of the Exclusive Or Double is zero or a negative
number (the most significant bit is on).
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 and V2001 will be loaded
into the accumulator using the Load Double instruction. The value in the accumulator is
exclusively OR’d with 36476A38 using the Exclusive Or Double instruction. The value in the
accumulator is output to V2010 and V2011 using the Out Double instruction.
K aaa
XORD
JMP
K
SHFTSHFT
3
D
OR
Q
XORD 36476A38
Handheld Programmer Keystrokes
LDD
V2000
X1
Load the value in V2000 and
V2001 into the accumulator
XORD
K36476A38
XORD the value in the
accumulator with
the constant value
36476A38
OUTD
V2010
Copy the value in the
accumulator to V2010
and V2011
001010000111
0000010000000000
V2000
287A
0110001000111001
0101010001111110
15 14 13 12 11 10 9876543210
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.
Acc.
V2010
4242
V2001
?
547E
V2011
6239
0101010001111110001010000111
230
240
250-1
260
Operand Data Type DL230 Range DL240 Range DL250-1 Range DL260 Range
aaa aaa aaa aaa
Constant K 0-FFFFFFFF 0-FFFFFFFF 0-FFFFFFFF 0-FFFFFFFF
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
DS Used
HPP Used
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