MCQ IN COMPUTER SCIENCE & ENGINEERING

Detailed explanation-1: -An absolute address is represented by the contents of a register. An absolute address is represented by the contents of a register. This addressing mode is absolute in the sense that it is not specified relative to the current instruction address.

Detailed explanation-2: -In the direct address mode, the address part of the instruction is equal to the effective address. The operand would reside in memory, and the address here is given directly by the instruction’s address field. The address field would specify the actual branch address in a branch-type instruction.

Detailed explanation-3: -An 8085 microprocessor uses five addressing modes: Immediate addressing mode, Register addressing mode, Register indirect addressing mode, Direct addressing mode, and Implicit addressing mode.

Detailed explanation-4: -In this mode, the data is directly copied from the given address to the register. This absolute addressing mode is also called a direct addressing mode. For example LDA 3000H: means the data at address 3000H is copied to register A.