Write a sequence of two instructions that set both the Carry and Overflow flags at the same time.

Q: • If a string instruction is repeatedly executed because of a REP prefix, how the CPU knows when to…

A: Repeat Prefix:     The repeat prefixes cause repetition of sure directions that load, store, move,…

Q: The ADD and SUB operators affect all the status flags according to the result of the operation. Give…

A: The mov operation does not cause any change in the status flags. add and sub can affect all status…

Q: Which instruction shifts each bit in an operand to the left and copies the highest bit into boththe…

A: Instruction shifting an operand to the left The left rotate instruction shifts all bits in the…

Q: An example of a control instruction is? a. JUMP O b. LOAD O c. ADD d. MOVE

A: Control instructions manage the the flow of the program. It controls the program flow.

Q: Explain why the MUL and one-operand IMUL instructions do not cause overflow.

A: Introduction: IMUL accepts one, two, or three operands.  It supports byte, word, and word…

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

A: Answer (True)

Q: Looking at a line in a listing file: 0009 EB05 jmp test the second byte in the jmp test instruction…

A: TRUE

Q: 1. Implement the following operation using shift and arithmetic instructions. Assume that all…

A: the given equation can be written as: 9(AX)-6(BX) - (BX) /4 →(AX) Instruction Sequence: Mov BX,…

Q: Identify the type of the jump and the type of the operand in the following instructions: 1) JNC 20H…

A: Solution(1) JNC 20 H JNC -Jump if no carry. It is a near jump. This jump works when the Carry flag…

Q: instructions

A: Introduction; Wilfredo Pareto developed this rule, also known as the Pareto Principle. It's a…

Q: 3. Develop a short sequence of instructions that clears (0) the three leftmost bits of DH without…

A: DH is the 8-bit register , which is the higher bits of DX register. Similarly BH is the 8-bit…

Q: Translate with a three-address statement, the following expression: n = f((x+2), y) – 5

A: Three address code: t1= x+2 param  t1 param  y call  f return t2 n= t2-5

Q: What are the contents of AX, CL, and carry flag at each statement of the following instructions :…

A: MOV This instructions data from one location to another Syntax : MOV destination , source AX : It is…

Q: Write a sub-program to compute the result for the following equation using arithmetic instructions.…

A: Main Aim:  A sub-program to compute the result for the following equation using arithmetic…

Q: What is correct instruction if you want the control to go to the location 2000h? A MOV 2000h B MOV…

A: Question. What is correct instruction if you want the control to go to the location 2000h? A MOV…

Q: Task 1 Write a program that adds the three numbers stored in data registers at 0x20, 0x30, and 0x40…

A: Solution : The Assembly Language Program Code for the given problem statement  is as follows -…

Q: Task 1 Write a program that adds the three numbers stored in data registers at 0x20, 0x30, and Ox40…

A: ANSWER :-

Q: Write a sequence of statements that use only PUSH and POP instructions to exchange the values in the…

A: ECX: It is a register which is used in performing various arithmetic and logical operations in…

Q: create a single datapath

A: Creating a Single Datapath• Data path segments for– Fetch– Execution• Arithmetic operations (R-type…

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

A: NOTE:“Since you have asked multiple questions, we will solve the first question for you. If you want…

Q: If a read-loop is written to process an unknown number of values using the while construct, and if…

A: Answer: To receive an unknown number of values from a file and get their sum, use the algorithm…

Q: Which of the following registers holds the information before it goes to the decoder? A control…

A: Registers holds the information before it goes to the decoder

Q: A-B+C-(D-E-F) W: Write a sequence of instructions that will compute the value of X = (G+H•I) for a…

A: LOAD A SUB B ADD C STORE T LOAD D MUL E SUB F MUL T STORE T LOAD G ADD H MUL I DIV T

Q: Given the statement, R = J +O +K- E, write the instruction using I address instruction format.

A: Your question is about 1 address instructions.  Let's solution for you.

Q: Looking at a line in a listing file: 0009 EB05 jmp test the second byte in the jmp test instruction…

A: Introduction

Q: What happens to the rest of the code when the RET instruction is omitted from a procedure?

A: Instruction: Instructions for CALL and RET. The use of assembly-language operations is controlled…

Q: This instruction will jump to the address calculated by adding the given address, X, to the contents…

A: The answer is

Q: What will be the value of ECX when the following sequence of instructions has executed? push 5 push…

A: What will be the value of ECX when the following sequence of instructions has executed? push 5 push…

Q: 12- Write a program to count from 0 to 15D using LOOP instruction.

A:

Q: Write an instructions to show the equation above using 0- address and 1-address.

A: 0-address instruction: PUSH C PUSH A PUSH B MUL  MUL SUB MUL 2,A DIV 4 SUB POP X

Q: ASSEMBLY with irvine32.inc Write a procedure called add3, which takes it three parameters from the…

A: Take three parameters in the stack. Add these numbers. Return the sum. print Success in the end.

Q: .dataval1 BYTE 10hval2 WORD 8000hval3 DWORD 0FFFFhval4 WORD 7FFFh If val4 is incremented by 1 using…

A: Status flags in assembly language The flag registers are special-purpose registers that change a…

Q: 6. The directive that updates the location counter to the next even address while executing a series…

A: Actually, given question regarding directives.

Q: Q1: If DX contains 81FEH and CX contains 1986H, explain the effect of the following instructions on…

A: i)  SUB DX, CX

Q: 1- What is the different between signed and unsigned conditional jump Instructions. 2- What are…

A: Registers don't differentiate between signed or unsigned values. There aren't two separate data…

Q: What flag condition is tested for by the instruction JNS?

A: What flag condition is tested for by the instruction JNS?

Q: Q1) Describe the operation of each of the following instructions: (а) PUSH AX (b) POP ESI (c) PUSH…

A: 1)Describe each of the following  a)PUSH AX b)POP ESI c)PUSH[BX] d)PUSHFD e)POP DS f)PUSHD 4 2)…

Q: A branch instruction changes the flow of information by changing the PC.True or False with…

A: basically your question is about A branch instruction changes the flow of information by changing…

Q: 1- What Is the different between signed and unsigned conditional Jump Instructions. 2- What are…

A: Given: Difference between Signed and Unsigned Conditional Jump What are flags those effects on the…

Q: When the RET instruction is left out of a procedure, what happens to the rest of the code?

A: RET Instruction: Instructions for CALL and RET. The use of assembly-language operations is…

Q: Write a sequence of two instructions that use addition to set the Zero and Carry flags at thesame…

A: The Carry flag is set, when there is a carry out of the Most Significant Bit (MSB) of destination…

Q: Give an example of how overflow cannot occur when the MUL and one-operand IMUL instructions are…

A: When the product totally fits inside the product's lower register, IMUL sign- extends the product…

Q: Find the Status Flags after executing Add instruction of a program below Mov AX 99H

A: There are 8 status flag registers in the 8085 microprocessors. The flag is a 1-bit representation.…

Q: Which of the shift and rotate instructions do not affect the zero flag Why dose the SAR instruction…

A: rcr (rotate through carry right) does not effect the zero flag Rcr shifts the bits to right through…

Q: (True/False): The LOOPE instruction jumps to a label when (and only when) the Zero flagis clear

A: LOOPE instruction: The “LOOPE” instruction means loop if equal. It makes a jump to the specified…

Q: Q4/A- If (CL) = 03H and AX = 891AH. Determine the new contents of AX and the carry flag after…

A: Rotate and Carry Right (RCR) instruction Shifts (rotates) right the bits of the first operand…

Q: After executing the SUBLW instruction, if C = 1 then the result is positive. Select one: O True O…

A: Programs are the set of lines of code that is used to provide instructions to the computer. The…

Q: What happens to the Carry flag when the SHR AX,1 instruction is executed?

A: Given: Execution of SHR AX, 1 instruction happens To Determine: Effect of Carry Flag

Q: opcode n i b address X

A: Answer: If opcode is 000101: Line block Source statement Object code 5 0000 0 Copy  Start…

Computer Fundamentals

The computer is termed computation. For calculating or computing something the device that has been used is known as the computer. Or we can say that for performing a fast arithmetic operation the device that has been used is a computer. Storing, processing, and retrieving are the main features of a computer.