Discussion
In an 8085 microprocessor, the instruction LDA 2600 H represents ______.
Answer: B
In the 8085, the instruction LDA 2600H loads the accumulator with the contents of the memory location whose 16 bit address, 2600H, is given in the instruction itself. An instruction that carries the address of the operand in this way uses direct addressing.
In immediate addressing the operand itself is in the instruction (as in MVI A, 26H), in register addressing the operand is in a register (MOV A, B), and in register indirect addressing a register pair points to the memory location (as in MOV A, M, where HL holds the address). The answer is direct addressing, option B.
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