After the instruction Idr ro, [r1] is executed, what is the content of ro?O A. The 8-bit value located at the memory address stored in r1B. The memory address where r1 is storedO C. The 32-bit value located at the memory address stored in r1O D. A copy of r1

content of r0 after the instruction executed

Answered: After the instruction Idr ro, [r1] is…

Computer Networking: A Top-Down Approach (7th Edition)

7th Edition

ISBN:9780133594140

Author:James Kurose, Keith Ross

Publisher:James Kurose, Keith Ross

Chapter1: Computer Networks And The Internet

Section: Chapter Questions

Problem R1RQ: What is the difference between a host and an end system? List several different types of end...

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2. Write a simple encryption/decryption program. Function encrypt takes a character pointer as a parameter and uses pointer-subscript notation to change the value in the address pointed to by adding 1 to it. Function decrypt takes a character pointer as a parameter and uses pointer notation to change the value in the address pointed to by subtracting 1 from it. Function main calls functions encrypt and decrypt and prints the encrypted string. // A simple encryption/decryption program #include "stdafx.h" #include using namespace std; // write the prototype for function encrypt // write the prototype function decrypt int main() { // create a string to encrypt char string[] = "this is a secret!"; cout « "Original string is : " « string « endl; encrypt(string); cout « "Encrypted string is : « string <« endl; decrypt(string); cout <« "Decrypted string is : «string<< endl;
The address operator O is a variable that holds an address all of these O returns the memory address of a variable dereferences a pointer and allows access to the value of the variable the pointer points to
3. Draw the memory map for 8 bytes starting at 0x2000_0030 as shown in the form given above.
Weight 2. A BMI (body mass index) is roughly weight over height square (BMI : Height2 Write Assembly code to calculate average BMI of N students. Relevant data is stored in memory as shown in the example below. Address 10 has the total number of students (N) followed by N weights and heights. Store the computed average BMI at the address 70. For example, if N = 2, the memory contents will be as follows: 0 1 2 |3 | 4 |5 6 10 02 96 05 5A | 06 There are 2 records. Weight and height of the 1s person is 96 and 05 respectively. Similarly, 5A and 06 are the weight and height of the second person. Assume decimal points are ignored and the average will be a rounded integer value. All divisions are integer divisions as well. Please use the Instruction Set of the simulator discussed in class. (http://www.softwareforeducation.com/sms32v50/sms32v50_manual/245-IsetSummary.htm)
The memory location at address 00002001 contains the memory variable in binary form. What is the data memory variable in hexadecimal form? MEMORY 1110 1011 00002001 1110 1010 00002000 1110 1001 00001999 1110 1000 00001998 1110 0111 00001997 1110 0110 00001996 DATA ADDRESS The data memory variable in hexadecimal form is E7. a. b. The data memory variable in hexadecimal form is EA. The data memory variable in hexadecimal form is EB. C. The data memory variable in hexadecimal form is E9. Od.
Please your code should be in mips assembly language
1). a) What is a pointer in C/C++? Please describe the process of referencing and dereferencing a pointer. b) Write a short assembly code to set up a pointer of 0x20000000 using RO and then load the 32-bit data stored at Ox20000000 into RO.
Q10. State the difference between Assembly language and Machine Language. Q11. Write a program to exchange BC & DE register pair using Intel 8085 CPU stack. Q12. Say what the following program does: Start: LDA 4000H LOOP: ADD A, A CPI EFH JC LOOP STOP: STA 4000H HLT Q13. What this program does: Start: LXI SP, 5000H PUSH PUSH D POP B POP D HLT Q14. When pushing a register pair to the stack: a- SP register gets decremented by 2. b- SP register gets incremented by 2. c- SP register gets decremented by 1. d- SP register gets incremented by 1. e- None of the above. Q15. To exchange contents of DE & BC register pair using the stack, we should: a- Push D followed by Push B then pop B followed by pop D. b- Push D followed by Push E then pop B followed by pop D. Push B followed by Push D then pop B followed by pop D. d- Push C followed by Push B then pop B followed by pop E. C- e- None of the above. Q16. WR & RD pins are active low output from the CPU: a- When RD pin is 0, it means data bus is…
Using 80x86 Assembly language 4. Write a definition of a macro toUpper with one parameter, the address of a byte in memory. The code generated by the macro will examine the byte, and if it is the ASCII code for a lowercase letter, replace it by the ASCII code for the corresponding uppercase letter.
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Complete the following sequence of three MIPS instructions: mul28: $t0, 28 mul $to ir by dragging four items from the below list into the correct spaces. Your code should implement a procedure, using the standard conventions covered in class for passing parameters and returning results, that returns the product of its argument and 28. $ra li sb $a0 $v0 Ib move lui Give a sequence of two MIPS instructions that branches to the target address represented by the name "loop" if and only if the contents of $$0 are less than or equal to the contents of $s1. Do this by dragging two items from the below list into the correct spaces. slt $at, $s1, $s0 bne $at, $zero, loop bltz $at, loop slt $at, $s0, $s1 beq $at, $zero, loop

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After the instruction Idr ro, [r1] is executed, what is the content of ro? A. The 8-bit value located at the memory address stored in r1 B. The memory address where r1 is stored O C. The 32-bit value located at the memory address stored in r1 O D. A copy ofr1