Samsung KS57C2308 Manual page 145

KS57C2308/P2308/C2316/P2316
OR
— Logical OR
OR dst,src
Operation: Operand
A, #im
A, @HL
EA,RR
RRb,EA
Description: The source operand is logically ORed with the destination operand. The result is stored in the
destination. The contents of the source are unaffected.
Operand
A, #im
A, @HL
EA,RR
RRb,EA
Example: If the accumulator contains the value 0C3H (11000011B) and register pair HL the value 55H
(01010101B), the instruction
OR
leaves the value 0D7H (11010111B) in the accumulator .
Operation Summary
Logical-OR immediate data to A
Logical-OR indirect data memory contents to A
Logical-OR double register to EA
Logical-OR EA to double register
Binary Code
1 1 0
0 0 1
0 0 1
1 1 0
0 0 1
1 1 0
0 0 1
EA,@HL
1 1 1 0 1
0 d3 d2 d1 d0
1 1 0 1 0
1 1 1 0 0
0 1 r2 r1 0
1 1 1 0 0
0 0 r2 r1 0
SAM47 INSTRUCTION SET
Bytes
2
1
2
2
Operation Notation
A A OR im
A A OR (HL)
EA EA OR RR
RRb RRb OR EA
Cycles
2
1
2
2
5-71