Convert the following assembly code to C and provide line by line explanation of code:

  • The equivalent code in C

  • A line-by-line explanation of the function of the code


Assembly Code

C Code

Explanation

movl -8(%rbp), %eax

sall $3, %eax

subl $3, %eax

movl %eax, -4(%rbp)

Assembly Code

C Code

Explanation

movl -8(%rbp), %eax

sall $2, %eax

subl $1, %eax

leal 7(%rax), %edx

testl %eax, %eax

cmovs %edx, %eax

sarl $3, %eax

movl %eax, -4(%rbp)


Assembly Code

C Code

Explanation

movl -8(%rbp), %eax

leal 7(%rax), %edx

testl %eax, %eax

cmovs %edx, %eax

sarl $3, %eax

movl -8(%rbp), %edx

sall $2, %edx

addl %edx, %eax

movl %eax, -4(%rbp)