汇编学习笔记-冒泡排序(xchg指令)

.section .data
arr:
    .int 15, 13, 14, 19, 10, 18, 16, 17, 11, 12
out:
    .asciz "%dn"
endl:
    .ascii "n"
.section .text
.globl _start
_start:
    movl $arr, %edi
    movl $10, %edx
loopi:
    dec %edx
    movl $0, %edi
    jz print
    movl $0, %ebx
    movl $arr, %edi
loopj:
    cmpl %ebx, %edx
    je loopi
    movl (%edi), %eax
    cmpl 4(%edi), %eax
    jge swap
    jmp contj
swap:
    xchg %eax, 4(%edi)
    movl %eax, (%edi)
contj:
    add $4, %edi
    inc %ebx
    jmp loopj
print:
    cmpl $10, %edi
    je end
    movl arr(, %edi, 4), %eax
    pushl %eax
    pushl $out
    call printf
    addl $8, %esp
    inc %edi
    jmp print
end:
    movl $1, %eax
    movl $0, %ebx
    int $0x80