ASSEMBLY LANGUAGE PROGRAMMING
ARCHITECTURE OF 8085
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
Opcode
|
|
|
Operand
|
|
|
Opinstruction
|
|
|
Opmemory
|
Detailed explanation-1: -A set of low-level instructions has operands and opcodes. An addressing mode has no relation with the opcode part. It basically focuses on presenting the address of the operand in the instructions.
Detailed explanation-2: -The addressing mode in which the data operand is a part of the instruction itself is known as immediate addressing mode.
Detailed explanation-3: -Absolute mode: In this addressing mode, the address of location of the operand is given explicitly as a part of the instruction. This addressing mode is also known as direct addressing mode.
Detailed explanation-4: -Addressing modes are an aspect of the instruction set architecture in most central processing unit (CPU) designs. The various addressing modes that are defined in a given instruction set architecture define how the machine language instructions in that architecture identify the operand(s) of each instruction.
Detailed explanation-5: -Register Addressing. In this addressing mode, a register contains the operand. Immediate Addressing. An immediate operand has a constant value or an expression. Direct Memory Addressing. Direct-Offset Addressing. Indirect Memory Addressing. The MOV Instruction.