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OR
Operation:
Assembler
Syntax:
Attributes:
Inclusive Logical OR
Source
+
Destination
~
Destination
OR (ea), Dn
OR Dn, (ea)
Size
=
(Byte, Word, Long)
OR
Description:
Performs an inclusive OR operation on the source operand and the destination
operand and stores the result in the destination location. The contents of an address register may
not be used as an operand.
Condition Codes:
x
N
z
v
C
a
a
X Not affected.
N Set if the most significant bit of the result is set. Cleared otherwise.
Z Set if the result is zero. Cleared otherwise.
V Always cleared.
C Always cleared.
Instruction Format:
15
14
13
12
11
10
9
8
7
6
5
1
1
0
0
REGISTER
OPMODE
Instruction Fields:
Register field - Specifies any of the eight data registers.
Opmode field:
Byte
000
100
CPU32 REFERENCE MANUAL
Word
001
101
Long
010
110
Operation
«ea»
+
(On»
~
On
«On»
+
(ea»
~
ea
INSTRUCTION SET
4
3
2
o
EFFECTIVE ADDRESS
MODE
I
REGISTER
MOTOROLA
4-127
III
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