CHAPTER 6 DETAILED RULES FOR EXECUTION INSTRUCTIONS
6.62OR (OR Byte Data of Accumulator and Temporary Accumulator to Accumulator)
Carry out the logical OR on byte data of AL and TL for every bit and return the results to AL. The contents of AH are not changed.
■OR (OR Byte Data of Accumulator and Temporary Accumulator to Accumulator)
Operation
(AL) ← (AL) ∨ (TL) (byte logical OR)
Assembler format
OR A
Condition code (CCR)
N | Z | V | C |
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+ | + | R | - |
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+: Changed by executing instruction
R: Set to 0 by executing instruction
N:Set to 1 if the MSB of AL is 1 as the result of operation and set to 0 in other cases.
Z:Set to 1 if the result of operation is 00H and set to 0 in other cases.
V:Always set to 0
C:Not changed
Number of execution cycle: 1
Byte count: 1
OP code: 72
170
