Consider the program below, where M andN are (secret) #define'd constants: int mat1(M][N]; int mat2[N][M]; int copy_element(int i, int j){ mat1(i]i)=mat2[j]0] Here is the compiled assembly code for the above program: copy_element: pushq %rbp movq %rsp, %rbp movl %edi, -4(%rbp) movl %esi, -8(%rbp) movl -4(%rbp),%eax movl -8(%rbp), %edx movsiq %edx, %rdx salq $3, %rdx addq %rdx, %rax movl mat2(,%rax,4), %ecx movl -8(%rbp), %eax movslq %eax, %rdx movq %rdx, %rax addq %rax, %rax addq %rdx, %rax salq $2, %rax addq %rsi, %rax movl %ecx, mat1(,%rax,4) popq %rbp ret Based on your understanding of C array representation, and the manner in which indices i and j are used, what are the values of M and N?
Consider the program below, where M andN are (secret) #define'd constants: int mat1(M][N]; int mat2[N][M]; int copy_element(int i, int j){ mat1(i]i)=mat2[j]0] Here is the compiled assembly code for the above program: copy_element: pushq %rbp movq %rsp, %rbp movl %edi, -4(%rbp) movl %esi, -8(%rbp) movl -4(%rbp),%eax movl -8(%rbp), %edx movsiq %edx, %rdx salq $3, %rdx addq %rdx, %rax movl mat2(,%rax,4), %ecx movl -8(%rbp), %eax movslq %eax, %rdx movq %rdx, %rax addq %rax, %rax addq %rdx, %rax salq $2, %rax addq %rsi, %rax movl %ecx, mat1(,%rax,4) popq %rbp ret Based on your understanding of C array representation, and the manner in which indices i and j are used, what are the values of M and N?
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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Question
![Consider the program below, where MandN are
(secret) #define'd constants:
int mat1[M][N];
int mat2[N][M];
int copy_element(int i, int j){
mat1[i]i]=mat2[GO
Here is the compiled assembly code for the above
program:
copy_element:
pushq %rbp
movq %rsp, %rbp
movl %edi, -4(%rbp)
movl %esi, -8(%rbp)
movl -4(%rbp),%eax
movl -8(%rbp), %edx
movslq %edx, %rdx
salq $3, %rdx
addq %rdx, %rax
movl mat2(,%rax,4), %ecx
movl -8(%rbp), %eax
movslq %eax, %rdx
movq %rdx, %rax
addq %rax, %rax
addq %rdx, %rax
salq $2, %rax
addq %rsi, %rax
movl %ecx, mat1(,%rax,4)
popq %rbp
ret
Based on your understanding of C array
representation, and the manner in which indices i
and j are used, what are the values of M and N?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ff677ad4c-42c4-4cbd-b8e5-1674403e60c7%2F89922dc5-96a8-4eff-9e76-25fbc11113b7%2Fr3vvnm_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Consider the program below, where MandN are
(secret) #define'd constants:
int mat1[M][N];
int mat2[N][M];
int copy_element(int i, int j){
mat1[i]i]=mat2[GO
Here is the compiled assembly code for the above
program:
copy_element:
pushq %rbp
movq %rsp, %rbp
movl %edi, -4(%rbp)
movl %esi, -8(%rbp)
movl -4(%rbp),%eax
movl -8(%rbp), %edx
movslq %edx, %rdx
salq $3, %rdx
addq %rdx, %rax
movl mat2(,%rax,4), %ecx
movl -8(%rbp), %eax
movslq %eax, %rdx
movq %rdx, %rax
addq %rax, %rax
addq %rdx, %rax
salq $2, %rax
addq %rsi, %rax
movl %ecx, mat1(,%rax,4)
popq %rbp
ret
Based on your understanding of C array
representation, and the manner in which indices i
and j are used, what are the values of M and N?
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