user: 这段汇编代码用C语言表示是什么样的：

```asm
<refined_soundex>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbx
  sub    $0x88,%rsp
  mov    %rdi,-0x88(%rbp)
  mov    %fs:0x28,%rax
  mov    %rax,-0x38(%rbp)
  xor    %eax,%eax
  mov    %rsp,%rax
  mov    %rax,%rbx
  cmpq   $0x0,-0x88(%rbp)
  setne  %al
  movzbl %al,%eax
  mov    %eax,%edi
  call   <assert@plt>
  mov    -0x88(%rbp),%rax
  mov    %rax,%rdi
  call   <strlen@plt>
  mov    %rax,-0x68(%rbp)
  mov    -0x68(%rbp),%rax
  add    $0x1,%rax
  mov    %rax,%rdx
  sub    $0x1,%rdx
  mov    %rdx,-0x60(%rbp)
  mov    %rax,-0xa0(%rbp)
  movq   $0x0,-0x98(%rbp)
  mov    %rax,-0xb0(%rbp)
  movq   $0x0,-0xa8(%rbp)
  mov    $0x10,%edx
  sub    $0x1,%rdx
  add    %rdx,%rax
  mov    $0x10,%esi
  mov    $0x0,%edx
  div    %rsi
  imul   $0x10,%rax,%rax
  mov    %rax,%rcx
  and    $0xfffffffffffff000,%rcx
  mov    %rsp,%rdx
  sub    %rcx,%rdx
L20:
  cmp    %rdx,%rsp
  je     L81
  sub    $0x1000,%rsp
  orq    $0x0,0xff8(%rsp)
  jmp    L20
L81:
  mov    %rax,%rdx
  and    $0xfff,%edx
  sub    %rdx,%rsp
  mov    %rax,%rdx
  and    $0xfff,%edx
  test   %rdx,%rdx
  je     L94
  and    $0xfff,%eax
  sub    $0x8,%rax
  add    %rsp,%rax
  orq    $0x0,(%rax)
L94:
  mov    %rsp,%rax
  add    $0x0,%rax
  mov    %rax,-0x58(%rbp)
  mov    -0x68(%rbp),%rax
  mov    %rax,%rdx
  sub    $0x1,%rdx
  mov    %rdx,-0x50(%rbp)
  mov    %rax,%r14
  mov    $0x0,%r15d
  mov    %rax,%r12
  mov    $0x0,%r13d
  mov    $0x10,%edx
  sub    $0x1,%rdx
  add    %rdx,%rax
  mov    $0x10,%esi
  mov    $0x0,%edx
  div    %rsi
  imul   $0x10,%rax,%rax
  mov    %rax,%rcx
  and    $0xfffffffffffff000,%rcx
  mov    %rsp,%rdx
  sub    %rcx,%rdx
L97:
  cmp    %rdx,%rsp
  je     L10
  sub    $0x1000,%rsp
  orq    $0x0,0xff8(%rsp)
  jmp    L97
L10:
  mov    %rax,%rdx
  and    $0xfff,%edx
  sub    %rdx,%rsp
  mov    %rax,%rdx
  and    $0xfff,%edx
  test   %rdx,%rdx
  je     L53
  and    $0xfff,%eax
  sub    $0x8,%rax
  add    %rsp,%rax
  orq    $0x0,(%rax)
L53:
  mov    %rsp,%rax
  add    $0x0,%rax
  mov    %rax,-0x48(%rbp)
  mov    -0x88(%rbp),%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  mov    %eax,%edi
  call   <toupper@plt>
  mov    -0x58(%rbp),%rdx
  mov    %al,(%rdx)
  movl   $0x1,-0x78(%rbp)
  movl   $0x0,-0x74(%rbp)
  jmp    L18
L5:
  mov    -0x74(%rbp),%edx
  mov    -0x88(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  mov    %eax,%edi
  call   <encode_char@plt>
  mov    -0x48(%rbp),%rcx
  mov    -0x74(%rbp),%edx
  mov    %al,(%rcx,%rdx,1)
  addl   $0x1,-0x74(%rbp)
L18:
  mov    -0x74(%rbp),%eax
  cmp    %rax,-0x68(%rbp)
  ja     L5
  movb   $0x0,-0x79(%rbp)
  movl   $0x0,-0x70(%rbp)
  jmp    L39
L87:
  mov    -0x48(%rbp),%rdx
  mov    -0x70(%rbp),%eax
  movzbl (%rdx,%rax,1),%eax
  cmp    %al,-0x79(%rbp)
  je     L13
  mov    -0x48(%rbp),%rdx
  mov    -0x70(%rbp),%eax
  movzbl (%rdx,%rax,1),%ecx
  mov    -0x58(%rbp),%rdx
  mov    -0x78(%rbp),%eax
  mov    %cl,(%rdx,%rax,1)
  addl   $0x1,-0x78(%rbp)
  mov    -0x48(%rbp),%rdx
  mov    -0x70(%rbp),%eax
  movzbl (%rdx,%rax,1),%eax
  mov    %al,-0x79(%rbp)
L13:
  addl   $0x1,-0x70(%rbp)
L39:
  mov    -0x70(%rbp),%eax
  cmp    %rax,-0x68(%rbp)
  ja     L87
  mov    -0x78(%rbp),%eax
  mov    %eax,%edi
  call   <malloc@plt>
  mov    %rax,-0x40(%rbp)
  movl   $0x0,-0x6c(%rbp)
  jmp    L27
L86:
  mov    -0x6c(%rbp),%edx
  mov    -0x40(%rbp),%rax
  lea    (%rdx,%rax,1),%rcx
  mov    -0x58(%rbp),%rdx
  mov    -0x6c(%rbp),%eax
  movzbl (%rdx,%rax,1),%eax
  mov    %al,(%rcx)
  addl   $0x1,-0x6c(%rbp)
L27:
  mov    -0x6c(%rbp),%eax
  cmp    -0x78(%rbp),%eax
  jb     L86
  mov    -0x78(%rbp),%edx
  mov    -0x40(%rbp),%rax
  add    %rdx,%rax
  movb   $0x0,(%rax)
  mov    -0x40(%rbp),%rax
  mov    %rbx,%rsp
  mov    -0x38(%rbp),%rdx
  sub    %fs:0x28,%rdx
  je     L58
  call   <__stack_chk_fail@plt>
L58:
  lea    -0x28(%rbp),%rsp
  pop    %rbx
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  pop    %rbp
  ret
```

assistant: ```c
char *refined_soundex(const char *str) {
  assert(str != NULL);
  size_t str_len = strlen(str);
  char code[str_len + 1];
  char buf[str_len];
  code[0] = toupper(str[0]);
  unsigned d = 1;
  for (unsigned i = 0; i < str_len; i++)
    buf[i] = encode_char(str[i]);
  char prev = '\0';
  for (unsigned i = 0; i < str_len; i++) {
    if (!((buf[i]) == (prev))) {
      code[d] = buf[i];
      d++;
      prev = buf[i];
    }
  }
  char *result = malloc(d * sizeof(char));
  for (unsigned i = 0; i < d; i++) {
    result[i] = code[i];
  }
  result[d] = '\0';
  return result;
}
```