user: 这段汇编代码用C语言表示是什么样的?

```asm
<sort>:
  endbr64
  push   %r13
  lea    0x18(%rdi),%r13
  push   %r12
  lea    0x8(%rdi),%r12
  push   %rbp
  lea    0x10(%rdi),%rbp
  push   %rbx
  mov    %rdi,%rbx
  sub    $0x8,%rsp
  mov    (%rdi),%rax
  mov    0x8(%rdi),%rdx
  test   %rax,%rax
  jne    L151
  test   %rdx,%rdx
  jne    L421
  mov    0x10(%rdi),%rax
L374:
  test   %rax,%rax
  jne    L272
  mov    0x18(%rbx),%rdx
L18:
  test   %rdx,%rdx
  je     L393
  mov    %r13,%rsi
  mov    %rbp,%rdi
  xor    %eax,%eax
  call   <swap@plt>
L393:
  mov    (%rbx),%rdx
  mov    0x8(%rbx),%rax
  test   %rdx,%rdx
  jne    L352
L148:
  test   %rax,%rax
  jne    L245
  mov    0x10(%rbx),%rdx
L488:
  test   %rdx,%rdx
  jne    L586
  mov    0x18(%rbx),%rax
L409:
  test   %rax,%rax
  jne    L566
L334:
  mov    (%rbx),%rdx
  mov    0x8(%rbx),%rax
  test   %rdx,%rdx
  jne    L244
L130:
  test   %rax,%rax
  jne    L28
  mov    0x10(%rbx),%rdx
L490:
  test   %rdx,%rdx
  jne    L307
  mov    0x18(%rbx),%rax
L335:
  test   %rax,%rax
  jne    L51
L526:
  mov    (%rbx),%rax
  mov    0x8(%rbx),%rdx
  test   %rax,%rax
  je     L189
L229:
  cmp    %rdx,%rax
  jle    L94
  test   %rdx,%rdx
  jne    L166
L94:
  mov    0x10(%rbx),%rax
  test   %rdx,%rdx
  je     L127
  test   %rax,%rax
  je     L10
  cmp    %rax,%rdx
  jg     L332
L10:
  mov    0x18(%rbx),%rdx
  test   %rax,%rax
  je     L514
  cmp    %rdx,%rax
  jle    L248
L514:
  test   %rdx,%rdx
  jne    L19
L248:
  add    $0x8,%rsp
  xor    %eax,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
  nopl   0x0(%rax)
L151:
  cmp    %rax,%rdx
  jge    L132
  test   %rdx,%rdx
  jne    L77
L132:
  mov    0x10(%rbx),%rax
  test   %rdx,%rdx
  je     L374
  test   %rax,%rax
  je     L311
  cmp    %rax,%rdx
  jg     L272
L311:
  mov    0x18(%rbx),%rdx
  test   %rax,%rax
  je     L18
  cmp    %rax,%rdx
  jl     L18
  mov    (%rbx),%rdx
  mov    0x8(%rbx),%rax
  test   %rdx,%rdx
  je     L148
  nop
L352:
  cmp    %rax,%rdx
  jle    L171
  test   %rax,%rax
  jne    L245
L171:
  mov    0x10(%rbx),%rdx
  test   %rax,%rax
  je     L488
  test   %rdx,%rdx
  je     L96
  cmp    %rdx,%rax
  jg     L586
L96:
  mov    0x18(%rbx),%rax
  test   %rdx,%rdx
  je     L409
  test   %rax,%rax
  je     L334
  cmp    %rax,%rdx
  jle    L334
L566:
  mov    %r13,%rsi
  mov    %rbp,%rdi
  xor    %eax,%eax
  call   <swap@plt>
  mov    (%rbx),%rdx
  mov    0x8(%rbx),%rax
  test   %rdx,%rdx
  je     L130
L244:
  test   %rax,%rax
  je     L143
  cmp    %rax,%rdx
  jg     L28
L143:
  mov    0x10(%rbx),%rdx
  test   %rax,%rax
  je     L490
  test   %rdx,%rdx
  je     L115
  cmp    %rdx,%rax
  jg     L307
L115:
  mov    0x18(%rbx),%rax
  test   %rdx,%rdx
  je     L335
  test   %rax,%rax
  je     L526
  cmp    %rax,%rdx
  jle    L526
L51:
  mov    %r13,%rsi
  mov    %rbp,%rdi
  xor    %eax,%eax
  call   <swap@plt>
  mov    (%rbx),%rax
  mov    0x8(%rbx),%rdx
  test   %rax,%rax
  jne    L229
L189:
  test   %rdx,%rdx
  jne    L166
  mov    0x10(%rbx),%rax
L127:
  test   %rax,%rax
  jne    L332
  mov    0x18(%rbx),%rdx
  test   %rdx,%rdx
  je     L248
L19:
  add    $0x8,%rsp
  mov    %r13,%rsi
  mov    %rbp,%rdi
  xor    %eax,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  jmp    1050 <swap@plt>
  nopl   0x0(%rax)
L28:
  mov    %r12,%rsi
  mov    %rbx,%rdi
  xor    %eax,%eax
  call   <swap@plt>
  mov    0x8(%rbx),%rax
  jmp    L143
  xchg   %ax,%ax
L272:
  mov    %rbp,%rsi
  mov    %r12,%rdi
  xor    %eax,%eax
  call   <swap@plt>
  mov    0x10(%rbx),%rax
  jmp    L311
  cs nopw 0x0(%rax,%rax,1)
L245:
  mov    %r12,%rsi
  mov    %rbx,%rdi
  xor    %eax,%eax
  call   <swap@plt>
  mov    0x8(%rbx),%rax
  jmp    L171
  cs nopw 0x0(%rax,%rax,1)
L166:
  mov    %r12,%rsi
  mov    %rbx,%rdi
  xor    %eax,%eax
  call   <swap@plt>
  mov    0x8(%rbx),%rdx
  jmp    L94
  cs nopw 0x0(%rax,%rax,1)
L332:
  mov    %rbp,%rsi
  mov    %r12,%rdi
  xor    %eax,%eax
  call   <swap@plt>
  mov    0x10(%rbx),%rax
  jmp    L10
  cs nopw 0x0(%rax,%rax,1)
L586:
  mov    %rbp,%rsi
  mov    %r12,%rdi
  xor    %eax,%eax
  call   <swap@plt>
  mov    0x10(%rbx),%rdx
  jmp    L96
  cs nopw 0x0(%rax,%rax,1)
L307:
  mov    %rbp,%rsi
  mov    %r12,%rdi
  xor    %eax,%eax
  call   <swap@plt>
  mov    0x10(%rbx),%rdx
  jmp    L115
  cs nopw 0x0(%rax,%rax,1)
L421:
  mov    %r12,%rsi
  call   <swap@plt>
  mov    0x8(%rbx),%rdx
  jmp    L132
L77:
  mov    %r12,%rsi
  xor    %eax,%eax
  call   <swap@plt>
  mov    0x8(%rbx),%rdx
  jmp    L132
```

assistant: ```c
sort(val) register long *val;
{
  register int i, j;
  for (i = 0; i < 4; i++)
    for (j = 0; j < 3; j++)
      if ((val[j] == 0) && (val[j + 1] != 0))
        swap(&val[j], &val[j + 1]);
      else if (val[j] > val[j + 1] && val[j + 1] != 0)
        swap(&val[j], &val[j + 1]);
}
```