The instruction used to copy two bytes from the stack to the Flags Register is: SAHF CMC PUSHF LAHF POPF STC

Q: The instruction that pushes the contents of the specified register/memory location on to the stack…

A: Required: 8086 MCQ

Q: ASSEMBLY The XOR instruction inverts each bit in a destination operand. True False

A: 1) The XOR instruction performs a bit wise Exclusive OR operation between corresponding bits in the…

Q: The instruction that pushes the contents of the specified register/memory location on to the stack…

A: Q1.  Stack is a data structure where the element removal and insertion can be done only at one end.…

Q: In a SRL instruction, if we perform shift on a number by two positions, the number is divided by 4.…

A: SRL instruction shifts a register value right by the shift amount  and places the value in the…

Q: In a SRL instruction, if we perform shift on a number by two positions, the number is divided by 2.…

A: SRL instruction stands for Shift Right Logical.

Q: The instruction that initializes a register with an offset address is(a) MOV offset (b) .5 LEA (c)…

A: The instruction that initializes a register with an offset address is  ans- (b) LEA-It is used to…

Q: In the instruction R1 <-- [R1] + [[R2]], which register is the destination operand? A. register Y B.…

A: According to the given instruction R1&lt;--[R1]+[[R2]] operand in R1 add with the operand of R2

Q: It is a data transfer instruction that transfers a word data pointed to by SP to the destination…

A: 1.) What is the content of the destination operand and the condition of the status flags after…

Q: (True/False): A JMP instruction can only jump to a label inside the current procedure.

A: Explanation:   JMP instruction root an unconditional transfer to a destination, which can be…

Q: T / F If the Omron addition instruction shown below is executed, its carry bit will be set. ADD(30)…

A: Instructions that are used in PLC controllers are used in CP1H omron.  Mathematical instructions :…

Q: True/False): In 32-bit mode, the LOOPNZ instruction jumps to a label when ECX isgreater than zero…

A: If the Zero flag is clear and ECX is greater than zero in 32-bit mode then LOOPNZ instruction jumps…

Q: The control inputs in a datapath is often derived from the instruction itself True False

A: Answer (True)

Q: ASSEMBLY The JBE instruction is used when comparing unsigned integers. True False

A: Given: ASSEMBLY The JBE instruction is used when comparing unsigned integers. True False

Q: (True/False): The destination operand of a MOV instruction cannot be a segment register.

A: MOV instruction: In assembly language, the MOV instruction is used to copying data from the source…

Q: JP label instruction belongs to _____. a. Register addressing b. Direct addressing c. Relative…

A: Answer : JP label instructions belongs to the  Register indirect mode of addressing.

Q: ASSEMBLY With unsigned operands, the CMP instruction sets the Carry flag when the destination…

A: Given: ASSEMBLY With unsigned operands, the CMP instruction sets the Carry flag when the…

Q: Write an instruction that moves all four bytes in myBytes to the EAX register

A: Instruction moving four bytes EAX stands for general purpose register and is a 32 bit general…

Q: ASSEMBLY The ROR instruction is only suitable for signed integers. True False

A: Given: ASSEMBLY The ROR instruction is only suitable for signed integers. True False

Q: The destination operand of a MOV instruction cannot be the EIP register.(True/False)

A: To be determine: True or False

Q: A MOV instruction's destination operand can't be an EIP register. (True/False)

A: EXPLANATION: The Extension Instruction Pointer register is stored in the EIP register. It tells the…

Q: Assume that the contents of the register r16 and carry flag are 0xA5 and 1, respectively. What will…

A: The following images the answer. Each has 2 parts- the content of each bit of the register, and the…

Q: The --is a 16-bit register sometimes referred to as the status .register Address register O Stack…

A: The answer is...

Q: In the instruction R1 <-- [R1] + [R2], which register holds the sum? A. register Y B. register Z C.…

A: Given instruction is R1&lt;-[R1]+[R2]

Q: Which instruction pushes the 32-bit EFLAGS register on the stack?

A: Instruction pushing the EFLAGS register The pushf instruction is used when the operand size…

Q: alled TAD that works as follows: Instruction TAD (AC=M[EA1]+M[EA2]) Hint: EA1 and EA2 are two…

A: It is defined as the operations executed on values that are stored in registers are called as…

Q: In the instruction cycle, the operation during time T1 is: O A. AR PC O B. IR -M[AR], PC PC + 1 O c.…

A: initially, the program counter PC is loaded with the address of the first instruction in the…

Q: ASSEMBLY The JAE instruction jumps if the (unsigned) first operand is greater than or equal to the…

A: Given data is shown below: The JAE instruction jumps if the (unsigned) first operand is greater than…

Q: (True/False): In a MOV instruction, the second operand is known as the destination operand.

A: The “MOV” instruction is a data transfer instruction that is used to copy data from source operand…

Q: When the current values of the SS register =B000H and SP register = FFAAH, The data currently held…

A: When the current values of the SS register =B000H and SP register = FFAAH, The data currently held…

Q: The CMP instruction is used to compare 2 operands. You can use a jump instruction afterwards. True…

A: CMP instruction is used to compare 2 operands. we can use jump instruction afterwards. Syntax :- CMP…

Q: In the instruction cycle, the operation during time T1 is: O A. DR - M [ AR]

A: In the instruction cycle, the operation during time T1 is : A. DR &lt;- M [AR] B. IR  &lt;- M…

Q: (True/False): The PUSH instruction doesn't allow for an immediate operand.

A: Given that: (True/False): The PUSH instruction doesn't allow for an immediate operand.

Q: (True/False): The PUSH instruction doesn't allow for an immediate operand.

A: The PUSH instruction basically allows an immediate operand, which helps in the subsequent…

Q: (True/False): The PUSH instruction doesn't allow for an immediate operand.

A: Yes, because it can from the 80186 processor onward.

Q: In the instruction R1 <-- [[R1]] + [R2], which register holds the memory location? A. register Y B.…

A: Given instruction, R1 &lt;-- [[R1]]+[R2] It contains two registers R1 and R2. [R1] indicates the…

Q: Another name for step 2 of the instruction cycle is ? Fetch search operate decode

A: Fetch, decode , read and execute are the 4 steps of instruction cycle.

Q: Instruction CLD belongs to Implied addressing and it sets the Carry Flag to one. Select one: True…

A: The given statement is false.   CLD is an example of implied addressing mode It reset the DF flag to…

Q: The Register indirect addressing mode is:       Immediate Operand Addressing Mode   mcq question…

A: The addressing mode is the method to specify the operand of an instruction.

Q: (True/False): JMP is a conditional transfer instruction.

A: JMP instruction: JMP stands for Jump which is used to transfer execution control to a different…

Q: trol inputs in a datapath is often derived from the instruction in

A: TRUE   Example: bne $s3,$s4,Else # go to Else if i not = jadd $s0,$s1,$s2 #f=g+hj Exit # jump out of…

Q: What kind of operands may be used with the FADD instruction?

A: FADD instruction kind of operands may be used with the FADD instruction are listed below.

Q: What kind of operands may be used with the FADD instruction?

A: operands that may be used with the FADD instruction are listed below.

Q: The INPUT instruction is defined as op-code ____ a. 8 b. 7 c. 9 d. 6

A: The problem is to tell the opcode of input operation.Opcode is the code which actually specifies…

Q: In microprogrammed control, calculate the total control memory size (in KB) if the control address…

A: Given: We are given a problem in which a microprogrammed control unit is given. Control address…

Q: ose of the flags register, and then name three (3) other flag registers that you are acquainted with…

A: Flag register are special registers , the flags tell about the status of the process. They contain…

Q: In real-address mode, which register is used as the counter by the LOOPD instruction?

A: The LOOPD instruction executes on CX, ECX, or RCX registers as the counters based on the…

Q: In real-address mode, which register is used as the counter by the LOOP instruction?

A: LOOP Instruction: According to ECX counter, the LOOP instruction is used to repeat a block of…

Q: Q2/ identify the addressing modes used for the source and the destination operands in the…

A: 1. Immediate Addressing mode 2. Register Addressing mode 3. Indirect Addressing mode

Q: How is the FSTP instruction different from FST?

A: The FST command transfers the value to a target codeword in the ST(0) variable which can be a…

Q: ASSEMBLY The destination operand of  the OR instruction can be a memory operand True False

A: Actually Instruction requires two operands, the first operand is destination, which contains data in…