User's Manual

MSM80C154S/83C154S/85C154HVS
344
85. ORL data address, A (Logical OR accumulator to memory)
01000010
70
Instruction code
Data address
Operation
Number of bytes
Number of cycles
Flags
(PSW)
Description
Example ORL 50H, A
Instruction code
: Byte 1
(data address)←(data address) OR (A):
C AC F0 RS1 RS0 OV F1 P
:
:
:
The logical OR between the accumulator and the specified data
address contents is determined. The result is placed in the
specified data address.
:
01000010
70
Byte 1
Accumulator
10001111
70
2
1
01010000
70
Byte 2
Before execution
Accumulator
10001111
70
After execution
:
a7 a6 a5 a4 a3 a2 a1 a0
70
Byte 2
50H
00100101
70
50H
10101111
70