Using Data Handling Instructions
9–19
Or (OR)
The value at source A is ORed bit by bit with the value at source B and then stored
in the destination.
Truth Table
Dest = A OR B
A
B
Dest
0
0
0
1
0
1
0
1
1
1
1
1
Source A and B can either be a word address or a constant; however, both sources
cannot be a constant. The destination must be a word address.
Updates to Arithmetic Status Bits
With this Bit:
The Controller:
S:0/0
Carry (C)
always resets.
S:0/1
Overflow (V)
always resets.
S:0/2
Zero (Z)
sets if result is zero; otherwise resets.
S:0/3
Sign (S)
sets if result is negative (most significant bit is set) otherwise
resets.
Programming
Execution Times
(
µ
sec) when:
True
False
33.68
6.78
OR
BITWISE INCLUS OR
Source A
Source B
Dest
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