2. Describe the CF, OF, SF, PF, and ZF values after the following instruction is executed. You can assume each of the flags is set to 0 initially. You also need to write very brief explanations as well for the chosen values. No mark is to be given without explanation. (3 marks)
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: Show the status flags after execution of ADD instruction (initially all flags are clear): 100 MOV…
A:
Q: 51. Fill in the table for the values in the registers and memory after the retq instruction is…
A: %rip - used as an instruction pointer %rsp - stack pointer caller-owned retq instruction: pops the…
Q: Specify the relation between the old and new content of AX after executing the following…
A: Given:
Q: Looking at a line in a listing file: 0009 EB05 jmp test the second byte in the jmp test instruction…
A: TRUE
Q: The code for the figure above has a CPWA at 000C to test the value of j. Because the program…
A: The reason is that the present value of “i” will be in the ACCUMULATOR regardless whether control…
Q: instructions
A: Introduction; Wilfredo Pareto developed this rule, also known as the Pareto Principle. It's a…
Q: If a string instruction is repeatedly executed because of a REP prefix, how the CPU knows when to…
A: REP Prefix: REP is used as a prefix to other instructions. REP prefixed instruction will be…
Q: Write the MIPS I code for the following C++ statements. y = ((x - 10) – (y + z)) – (x * 256); Use…
A: Step 1:- Given:- Variables x y z Register $s0 $s1 $2
Q: What exactly do we mean when we say "loop unrolling"? How does it aid in optimising instruction…
A: Intro Loop unrolling_ , also known as loop unwinding_ , is a loop transformation technique that…
Q: The value that will be stored in AX, after executing the following instruction is
A: This is simple. The correct answer is option C which is 0E70H Explanation - AX, 0E7H means reset…
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: 1. Study this program, then answer the questions that follow : MOV AL, 64H ADD AL,27H DAA a) What…
A: The Flag register is a Special Purpose Register. Depending upon the value of result after any…
Q: What is the final result for AL and BL after executing the sequential mnemonic opcode/operand…
A: What is the final result for AL and BL after executing the sequential mnemonic opcode/operand…
Q: 1. What instructions can be used so as to manipulate CF, DF and IF?
A: According to our guidelines i am solve first one .…
Q: Compare and contrast AND and TEST instructions?
A: *As per the company norms and guidelines we are providing a first question answer only please…
Q: Assume that before the instruction is executed, the flags are CF=0, ZF=0 and SF=0 and the Registers…
A: I have given an answer in step 2.
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: Find C, and Z flags after executing the compare instruction in each of the following codes:…
A: Zero flag will be 1 ,while carry flag will be 0. LDI :It loads the instruction in the register.…
Q: Write your own understanding and additional discussion from the following Explain and Discuss in…
A: Instruction Execution: CPU is responsible for execution of the instruction that is requested by the…
Q: Q1) Write the content of register and flags after executing each instruction below. Explain your…
A: The given instructions have to be carried out and the corresponding values of R16 , R17 and flags…
Q: 4. Specify the relation between the old and new content of AX after executing the following…
A: Answer:- NOT AX Refer as – NOT is the REG memory which is used to invert the bit of the operand. NOT…
Q: What is the final result for AL and BL after executing the sequential mnemonic opcode/operand…
A:
Q: ADD [R1], R2, [R3]; Here [R1] and [R3] indicate memory locations pointed by R1 and R3 register…
A: The block diagram of the CPU is a schematic diagram that depicts the key components of the computer…
Q: Write and assemble a program to add the following data and then use the simulator to examine the C,…
A: Initially, the value 92H is stored in the accumulator of register A and when we add 23H to the…
Q: 1. Study this program , then answer the questions that follow : MOV AL, 64H ADD AL,27H DAA a) What…
A: According to the Bartelby guideline we are suppose to answer one question at a time. Kindly repost…
Q: How can I tell whether an instruction has the extended indication in it
A: In computer science, an instruction is a single processor action described by the instruction set of…
Q: What precisely do we mean by "loop unrolling?" What role does it play in optimising instruction…
A: Intro Loop unrolling_ , also known as loop unwinding_ , is a loop transformation technique that…
Q: Do the following problems: Given the contents EAX: 58AD 2453H, EBX: 37CE 3A Show the values (states)…
A: Contents EAX = 58AD 2453 H = 0101 1000 1010 1011 0010 0100 0101 0011…
Q: b) You have studied five state diagram, consider the following program and list the states in which…
A: New (Create) – In this step, the process is about to be created but not yet created, it is the…
Q: Why do we sometimes use read-modify-write instead of a simple STR instruction? Provide an example of…
A: A simple read instruction is the most frequent approach to read data from a memory address. The STR…
Q: Yes is the correct response to this inquiry, even if there isn't a uniform distribution of the…
A: Pipelining: Pipelining does not help with a single job delay, but it does help with the overall…
Q: struction starts with the _. a. going to the mailbox address specified in the instruction he…
A: Given: 15)The execution potion of the LOAD instruction starts with the _. a. going to the mailbox…
Q: Write the MIPS I code for the following C++ statements. x =-( (~ly & z)|x) & (x | 100)) >> 5); Use…
A: Given C++ expression: x value is stored in $s0 register. y value is stored in $s1 register. z…
Q: List the flags that would be affect during the use of IN instruction.
A: Below are the instructions
Q: After the ROR instruction is executed in the code sequence below, what is the final value for AL?…
A: Given that, After the ROR instruction is executed in the code sequence below, what is the final…
Q: CPU-OS Simulator has instructions like LDB (Load byte), SUB, ADD, MOV. Using these…
A: Start. Load the numbers. Perform the calculations. Print the result. Exit.
Q: Your task is to fill in the missing parts of the C code to get a program equivalent to the generated…
A: A. Which registers hold program values x, n, result, and mask? | Variable| | Register | | x…
Q: Show the status flags after execution of INC instruction (initially all flags are clear): (b E) CLA)…
A:
Q: Give an illustration of how the instruction set deals with data and operations using at least five…
A: Given: In no less than 5 words, describe how the instruction set handled data and operations.…
Q: Q1/(A) Determine the new contents of AX and the carry flag after executing the instructions : SHR AX…
A: Q1/A
Q: 3. What instruction should be executed to ensure that the carry flag is in the set state ? the reset…
A: The Flag register is a Special Purpose Register. In Intel x86 microprocessors, a status register…
Q: Find the status of the CF, PF, AF, ZF and SF flags as well as the value of register AL after the…
A: 80486 MICROPROCESSOR- The 80486 has the 8k of cache memory built inside the processor with the 32…
Q: Q3-For the two processes below, implement and adopt a special machine instruction to guarantee the…
A: Mutual Exclusion: Mutual exclusion means having only one process at a time in the critical section…
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: Fill in the following table showing the results of the indicated instructions, using the register…
A:
Q: Modify your program from Lab #10 by implementing a data validation subroutine. Your subroutine…
A: The sum of 10 numbers ( from location x3100,x3101,x3102, x3103,x3104,x3105,x3106,x3107,x3108,x3109)…
Q: 5. What instruction does "j do_fact" translate to? why does it use x0? 6. What is the cycle count…
A: We need to answer questions related to given assembly code. As per user requirements, 5 and 6 is…
Q: 5. Below shows a sequence of instructions, give the result of accumulator before and after the DA…
A: Since you are asking multiple questions, we are answering first question for you. If you want…
Q: a. MOV AL, BL where AL contains 0A1h and BL contains 25h b. ADD AL, BL where AL contains 8Fh…
A: Assembly level language is a low-level programming language, that's used to communicate directly…
Trending now
This is a popular solution!
Step by step
Solved in 3 steps with 5 images
- Write and assemble a program to add the following data and then use the simulator to examine the C, H and Z flags after the execution of each addition. $92, $23, $66, $87, $F5Discuss the importance of flags (e.g., zero flag, carry flag) in ALU instructions and how they affect program execution.For the following C statement, write the correspondingRISC-V assembly code. Assume that the variables f, g, h, i, and j are assigned toregisters x5, x6, x7, x28, and x29, respectively. Assume that the base address ofthe arrays A and B are in registers x10 and x11, respectively. B[8] = A[i−j];
- For the following C statement, write the corresponding LEGv8 assembly code. Assume that the C variables f, g, and h, have already been placed in registers X0, X1, and X2 respectively. Use a minimal number of LEGv8 assembly instructions. f = g - (h + 5)* 5;The code for the figure above has a CPWA at 000C to test the value of j. Because the program branches to that instruction from the bottom of the loop, why doesn’t the compiler generate an LDWA j, d at that point before the compare instruction?Find the status of the CF, PF, AF, ZF and SF flags as well as the value of register ALafter the execution of the following instructions?MOV CL, 0FFHADD CL, 01HMOV AL, 0B8HMOV BL, 0F4HADC AL, BL
- For the (pseudo) assembly code below, replace X, Y, P, and Q with thesmallest set of instructions to save/restore values on the stack and update the stackpointer. Assume that procA and procB were written independently by two differentprogrammers who are following the MIPS guidelines for caller-saved and callee-savedregisters. In other words, the two programmers agree on the input arguments andreturn value of procB, but they can't see the code written by the other person. procA:$s0 = ...$s1 = ...$s2 = ...$t0 = ...$t1 = ...$t2 = ...X$a0 = ...$a1 = ...jal procBY... = $s1... = $t0... = $t1... = $a0jr $raprocB:P... = $a0... = $a1$s2 = ...$t0 = ...Qjr $ra15)The execution potion of the LOAD instruction starts with the _. a. going to the mailbox address specified in the instruction he previously read b. reading the number in the mailbox with the address given by the location counter c. going to the mailbox with the address given by the location counter d. fetching the address from the location counterAssume that the instruction pointer, EIP, contains 9810 and the assembly language representation of the instruction in memory at address 9810 is JAE 131. If the flags are currently CF=1, ZF=0 and SF=0 what is the value of the EIP after the instruction executes? The answer 102 is not correct so what is the correct answer?
- 25: . Find the time delay in the following program if the crystal frequency is 1 MHz. Do not ignore the time delay due to the first and last instruction. DELAY: LDI R16, 30 AGAIN: LDI R17, 35 HERE: NOP NOP DEC R17 BRNE HERE DEC R16 BRNE AGAIN RET 26: Write a program to display 2 on 7 segment. A 7 segment is connected to PortD.Each instruction in this situation is given its own data, separate from the data used by any other instructions. To do this, we use a: A Multiple Input/Output B Data or Instruction Repeatedly C Distinct Information Difficulty Level: Single Inst, Single Inst, MultipleAssume that the state of the 8088’s registers and memory just prior to the executionof each instruction in problem 15 is as follows: * in photos*What result is produced in the destination operand by executing instructions (a)through (k)? *only h through k* (h) MUL DX(i) IMUL BYTE PTR [BX+SI](j) DIV BYTE PTR [SI]+0030H(k) IDIV BYTE PTR [BX][SI]+0030H