Question: Consider the assembly code below. Can I get what the line by line are meaning and doing? .globl _main _main: pushq %rbp movq %rsp, %rbp

Consider the assembly code below. Can I get what the line by line are meaning and doing?

.globl _main

_main:

pushq %rbp

movq %rsp, %rbp

subq $16, %rsp

movl $0, -4(%rbp)

LBB0_1:

callq _getchar

movl %eax, -8(%rbp)

cmpl $-1, %eax

je LBB0_3

movl -8(%rbp), %edi

callq _putchar

movl %eax, -12(%rbp)

jmp LBB0_1

LBB0_3:

xorl %eax, %eax

addq $16, %rsp

popq %rbp

retq

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