What is an Operand?

What is an Operand?
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1 Answer

Answer :

The data on which the operation is to be performed is called as an Operand.
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In immediate addressing the operand is placed a. in the CPU register b. after OP code in the instruction c. in memory d. in stack

Description : In immediate addressing the operand is placed a. in the CPU register b. after OP code in the instruction c. in memory d. in stack

Last Answer : b. after OP code in the instruction

Pipeline implement a. fetch instruction b. decode instruction c. fetch operand d. calculate operand e. execute instruction f. all of abve

Description : Pipeline implement a. fetch instruction b. decode instruction c. fetch operand d. calculate operand e. execute instruction f. all of abve

Last Answer : f. all of abve

Instruction in computer languages consists of a. OPCODE b. OPERAND c. Both of above d. None of above

Description : Instruction in computer languages consists of a. OPCODE b. OPERAND c. Both of above d. None of above

Last Answer : c. Both of above

Single address computer instruction has two parts: a. The operation code b. The operand c. A and B d. None of these

Description : Single address computer instruction has two parts: a. The operation code b. The operand c. A and B d. None of these

Last Answer : c. A and B

What are the four parts of label , opcode , operand and comment ?

Description : What are the four parts of label , opcode , operand and comment ?

Last Answer : Labels , opcodes , operands and comments are the four parts of a mechanical language.

What is an operand ?

Description : What is an operand ?

Last Answer : An operation in mathematics is an object of mathematical activity , that is, an object or quantity that is managed.

Instruction in computer languages consists of A) OPCODE B) OPERAND C) Both of above D) None of above

Description : Instruction in computer languages consists of A) OPCODE B) OPERAND C) Both of above D) None of above

Last Answer : Answer : C

In which addressing mode the operand is given explicitly in the instruction? A. Absolute B. Immediate C. Indirect D. Direct

Description : In which addressing mode the operand is given explicitly in the instruction? A. Absolute B. Immediate C. Indirect D. Direct

Last Answer : B. Immediate

A basic instruction that can be interpreted by computer generally has ________ A. An operand and an address B. decoder and an accumulator C. Sequence register and decoder D. None of the Above

Description : A basic instruction that can be interpreted by computer generally has ________ A. An operand and an address B. decoder and an accumulator C. Sequence register and decoder D. None of the Above

Last Answer : A. An operand and an address

Two important fields of an instruction are. a. Opcode b. Operand c. Only a d. Botha&b

Description : Two important fields of an instruction are. a. Opcode b. Operand c. Only a d. Botha&b

Last Answer : d. Botha&b

specify where to get the source and destination operands for the operation specified by the a. Operand fields and opcode b. Opcode and operand c. Source and destination d. Cpu and memory

Description : specify where to get the source and destination operands for the operation specified by the a. Operand fields and opcode b. Opcode and operand c. Source and destination d. Cpu and memory

Last Answer : a. Operand fields and opcode

Micro-orders generate the_ __ address of operand and execute instruction and prepare for fetching next instruction from the main memory: a. Physical b. Effective c. Logical d. all of above

Description : Micro-orders generate the_ __ address of operand and execute instruction and prepare for fetching next instruction from the main memory: a. Physical b. Effective c. Logical d. all of above

Last Answer : b. Effective

The operation is specified by a binary code known as the a. Operand code b. Opcode c. Source code d. — Allof these

Description : The operation is specified by a binary code known as the a. Operand code b. Opcode c. Source code d. — Allof these

Last Answer : b. Opcode

Which operation use one operand or unary operations: a. Arithmetic b. Logical c. Both d. None

Description : Which operation use one operand or unary operations: a. Arithmetic b. Logical c. Both d. None

Last Answer : c. Both

In which addressing the operand is actually present in instruction: a. Immediate addressing b. Direct addressing 9 Register addressing a None of these

Description : In which addressing the operand is actually present in instruction: a. Immediate addressing b. Direct addressing 9 Register addressing a None of these

Last Answer : a. Immediate addressing

In which addressing the simplest addressing mode where an operand is fetched from memory is a. Immediate addressing b. Direct addressing c. Register addressing d. None of these

Description : In which addressing the simplest addressing mode where an operand is fetched from memory is a. Immediate addressing b. Direct addressing c. Register addressing d. None of these

Last Answer : b. Direct addressing

In which mode the main memory location holds the EA of the operand: a. Immediate addressing b. Direct addressing c. Register addressing d. Indirect addressing

Description : In which mode the main memory location holds the EA of the operand: a. Immediate addressing b. Direct addressing c. Register addressing d. Indirect addressing

Last Answer : d. Indirect addressing

An instruction code must specify the address of the__. a. Opecode b. Operand c. Both d. None

Description : An instruction code must specify the address of the__. a. Opecode b. Operand c. Both d. None

Last Answer : b. Operand

Which operation is used to shift the content of an operand to one or more bits to provide necessary variation: a. Logical and bit manipulation b. Shift manipulation c. Circular manipulation d. None of these

Description : Which operation is used to shift the content of an operand to one or more bits to provide necessary variation: a. Logical and bit manipulation b. Shift manipulation c. Circular manipulation d. None of these

Last Answer : b. Shift manipulation

Given a source code with 10 operators includes 6 unique operators, and 6 operand including 2 unique operands. The program volume is ? 48 120 720 insufficient data

Description : Given a source code with 10 operators includes 6 unique operators, and 6 operand including 2 unique operands. The program volume is ? 48 120 720 insufficient data

Last Answer : 48

Instruction in computer languages consists of a. OPCODE b. OPERAND c. Both of above d. None of above

Description : Instruction in computer languages consists of a. OPCODE b. OPERAND c. Both of above d. None of above

Last Answer : Both of above

Write an example for immediate operand.

Description : Write an example for immediate operand.

Last Answer : The quick add instruction with one constant operand is called add immediate or addi.To add 4 to register $s3, we just writeaddi $s3,$s3,4 # $s3 = $s3 + 4.

What will be the output of the following Python code? >>> a={4,5,6}>>> b={2,8,6}>>> a+b a) {4,5,6,2,8} b) {4,5,6,2,8,6} c) Error as unsupported operand type for sets d) Error as the duplicate item 6 is present in both sets

Description : What will be the output of the following Python code? >>> a={4,5,6}>>> b={2,8,6}>>> a+b a) {4,5,6,2,8} b) {4,5,6,2,8,6} c) Error as unsupported operand type for sets d) Error as the duplicate item 6 is present in both sets

Last Answer : Answer: c Explanation: Execute in python shell to verify.

Which one of the following is not an addressing mode? (A) Register indirect (B) Auto increment (C) Relative indexed (D) Immediate operand

Description : Which one of the following is not an addressing mode? (A) Register indirect (B) Auto increment (C) Relative indexed (D) Immediate operand

Last Answer : (C) Relative indexed

Refer the points as listed below: (a) What are the operator precedence rules ? (b) What are the operator associativity rules ? (c) What is the order of operand evaluation ? (d) Are there restrictions on operand evaluation side effects ? Which of the above must be considered as primary design issues for arithmetic expressions ? (A) (a), (b) and (c) (B) (a), (c) and (d) (C) (a), (b) and (d) (D) (a), (b), (c) and (d)

Description : Refer the points as listed below: (a) What are the operator precedence rules ? (b) What are the operator associativity rules ? (c) What is the order of operand evaluation ? (d) Are there restrictions on operand evaluation side effects ? ... (d) (C) (a), (b) and (d) (D) (a), (b), (c) and (d)

Last Answer : (D) (a), (b), (c) and (d)

The compiler converts all operands upto the type of the largest operand is called (A) Type Promotion (B) Type Evaluation (C) Type Conversion (D) Type Declaration

Description : The compiler converts all operands upto the type of the largest operand is called (A) Type Promotion (B) Type Evaluation (C) Type Conversion (D) Type Declaration

Last Answer : (A) Type Promotion 

Explain ALIGN & ASSUME

Description : Explain ALIGN & ASSUME

Last Answer : The ALIGN directive forces the assembler to align the nextsegment at an address divisible by specified divisor. The format is ALIGN number where number can be 2, 4, 8 or 16. Example ALIGN 8. The ASSUME ... the segment registers at execution time. Example ASSUME CS: code, DS: data, SS: stack

What is linker

Description : What is linker

Last Answer : A linker is a program used to join together several object files into one large object file. For large programs it is more efficient to divide the large program modules into ... & debugged. When all the modules work they are linked together to form a large functioning program.

What is loader

Description : What is loader

Last Answer : The loader copies the program into the computer’s main memory at load time and begins the program execution at execution time.

What is assembler

Description : What is assembler

Last Answer : The assembler translates the assembly language program text which is given as input to the assembler to their binary equivalents known as object code. The time required to translate the assembly code ... time. The assembler checks for syntax errors & displays them before giving the object code.

How does the microprocessor differentiate between data and instruction

Description : How does the microprocessor differentiate between data and instruction

Last Answer : When the first m/c code of an instruction is fetched and decoded in the instruction register, the microprocessor recognizes the number of bytes required to fetch the entire ... will be considered as data & the byte after the data will be treated as the next instruction.

What is Microcontroller and Microcomputer

Description : What is Microcontroller and Microcomputer

Last Answer : Microcontroller is a device that includes microprocessor; memory and I/O signal lines on a single chip, fabricated using VLSI technology. Microcomputer is a computer that is designed using microprocessor as its CPU. It includes microprocessor, memory and I/O.

Why do we use XRA A instruction

Description : Why do we use XRA A instruction

Last Answer : The XRA A instruction is used to clear the contents of the Accumulator and store the value 00H.

Define stack and explain stack related instructions

Description : Define stack and explain stack related instructions

Last Answer : The stack is a group of memory locations in the R/W memory thatis used for the temporary storage of binary information during the execution of the program. The stack related instructions are PUSH & POP

What is the use of bi-directional buffers?

Description : What is the use of bi-directional buffers?

Last Answer : It is used to increase the driving capacity of the data bus. The data bus of a microcomputer system is bi-directional, so it requires a buffer that allows the data to flow in both directions.

What is the use of addressing modes, mention the different types

Description : What is the use of addressing modes, mention the different types

Last Answer : The various formats of specifying the operands are called addressing modes, it is used to access the operands or data. The different types are as follows • Immediate addressing • Register addressing • Direct addressing • Indirect addressing • Implicit addressing

Explain the different instruction formats with examples

Description : Explain the different instruction formats with examples

Last Answer : The instruction set is grouped into the following formats • One byte instruction MOV C,A • Two byte instruction MVI A,39H • Three byte instruction JMP 2345H

Explain LDA, STA and DAA instructions

Description : Explain LDA, STA and DAA instructions

Last Answer : LDA copies the data byte into accumulator from the memory location specified by the 16-bit address. STA copies the data byte from theaccumulator in the memory location specified by 16-bit address. DAA changes the contents of the accumulator from binary to 4-bit BCD digits.

Mention the categories of instruction and give two examples for each category

Description : Mention the categories of instruction and give two examples for each category

Last Answer : The instructions of 8085 can be categorized into the following five • Data transfer MOV Rd,Rs STA 16-bit • Arithmetic ADD R DCR M • Logical XRI 8-bit RAR • Branching JNZ CALL 16-bit • Machine control HLT NOP

Explain the signals HOLD, READY and SID

Description : Explain the signals HOLD, READY and SID

Last Answer : HOLD indicates that a peripheral such as DMA controller is requesting the use of address bus, data bus and control bus. READY is used to delay the microprocessor ... slow responding peripheral is ready to send or accept data. SID is used to accept serial data bit by bit

How many machine cycles does 8085 have, mention them

Description : How many machine cycles does 8085 have, mention them

Last Answer : The 8085 have seven machine cycles. They are • Opcode fetch • Memory read • Memory write • I/O read • I/O write • Interrupt acknowledge • Bus idle

What is the use of ALE

Description : What is the use of ALE

Last Answer : The ALE is used to latch the lower order address so that it can be available in T2 and T3 and used for identifying the memory address. During T1 the ALE goes high, the latch is transparent ... is the lower order address. When ALE goes low the lower order address is latched until the next ALE.

What is an instruction?

Description : What is an instruction?

Last Answer : An instruction is a binary pattern entered through an input device to command the microprocessor to perform that specific function

Define instruction cycle, machine cycle and T-state

Description : Define instruction cycle, machine cycle and T-state

Last Answer : Instruction cycle is defined, as the time required completing theexecution of an instruction. Machine cycle is defined as the time required completing one operation of accessing memory, I/O or ... request. Tcycle is defined as one subdivision of the operation performed in one clock period

Basic concepts in memory interfacing

Description : Basic concepts in memory interfacing

Last Answer : The primary function of memory interfacing is that the microprocessor should be able to read from and write into a given register of a memory chip. To perform these operations the microprocessor ... Be able to select the chip Identify the register Enable the appropriate buffer

How many interrupts does 8085 have, mention them

Description : How many interrupts does 8085 have, mention them

Last Answer : The 8085 has 5 interrupt signals; they are INTR, RST7.5, RST6.5, RST5.5 and TRAP

Steps involved to fetch a byte in 8085

Description : Steps involved to fetch a byte in 8085

Last Answer : i. The PC places the 16-bit memory address on the address bus ii. The control unit sends the control signal RD to enable the memory chip iii. The byte from ... byte is placed in the instruction decoder of the microprocessor and the task is carried out according to the instruction

What are operations performed on data in 8085

Description : What are operations performed on data in 8085

Last Answer : The various operations performed are • Store 8-bit data • Perform arithmetic and logical operations • Test for conditions • Sequence the execution of instructions • Store data temporarily during execution in the defined R/W memory locations called the stack

What is the signal classification of 8085

Description : What is the signal classification of 8085

Last Answer : All the signals of 8085 can be classified into 6 groups • Address bus • Data bus • Control and status signals • Power supply and frequency signals • Externally initiated signals • Serial I/O ports

What is a microcomputer?

Description : What is a microcomputer?

Last Answer : A computer that is designed using a microprocessor as its CPU is called microcomputer.