user: What would the C source look like for the assembly code provided here:

```asm
<reverseWord>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbx
  sub    $0x48,%rsp
  mov    %rdi,-0x68(%rbp)
  mov    %fs:0x28,%rax
  mov    %rax,-0x38(%rbp)
  xor    %eax,%eax
  mov    %rsp,%rax
  mov    %rax,%rbx
  mov    -0x68(%rbp),%rax
  mov    %rax,-0x50(%rbp)
  mov    -0x68(%rbp),%rax
  mov    %rax,%rdi
  call   <strlen@plt>
  mov    %eax,-0x54(%rbp)
  movl   $0x0,-0x58(%rbp)
  mov    -0x54(%rbp),%eax
  movslq %eax,%rdx
  sub    $0x1,%rdx
  mov    %rdx,-0x48(%rbp)
  movslq %eax,%rdx
  mov    %rdx,%r14
  mov    $0x0,%r15d
  movslq %eax,%rdx
  mov    %rdx,%r12
  mov    $0x0,%r13d
  cltq
  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
L43:
  cmp    %rdx,%rsp
  je     L132
  sub    $0x1000,%rsp
  orq    $0x0,0xff8(%rsp)
  jmp    L43
L132:
  mov    %rax,%rdx
  and    $0xfff,%edx
  sub    %rdx,%rsp
  mov    %rax,%rdx
  and    $0xfff,%edx
  test   %rdx,%rdx
  je     L98
  and    $0xfff,%eax
  sub    $0x8,%rax
  add    %rsp,%rax
  orq    $0x0,(%rax)
L98:
  mov    %rsp,%rax
  add    $0x0,%rax
  mov    %rax,-0x40(%rbp)
  mov    -0x54(%rbp),%eax
  sub    $0x1,%eax
  mov    %eax,-0x60(%rbp)
  jmp    L3
L42:
  mov    -0x60(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x50(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  cmp    $0x20,%al
  jne    L73
  mov    -0x60(%rbp),%eax
  add    $0x1,%eax
  mov    %eax,-0x5c(%rbp)
  jmp    L40
L61:
  mov    -0x5c(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x50(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%ecx
  mov    -0x40(%rbp),%rdx
  mov    -0x58(%rbp),%eax
  cltq
  mov    %cl,(%rdx,%rax,1)
  addl   $0x1,-0x5c(%rbp)
  addl   $0x1,-0x58(%rbp)
L40:
  mov    -0x5c(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x50(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  cmp    $0x20,%al
  je     L151
  mov    -0x5c(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x50(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  test   %al,%al
  jne    L61
L151:
  mov    -0x58(%rbp),%eax
  lea    0x1(%rax),%edx
  mov    %edx,-0x58(%rbp)
  mov    -0x40(%rbp),%rdx
  cltq
  movb   $0x20,(%rdx,%rax,1)
  jmp    L97
L73:
  cmpl   $0x0,-0x60(%rbp)
  jne    L97
  mov    -0x60(%rbp),%eax
  mov    %eax,-0x5c(%rbp)
  jmp    L54
L144:
  mov    -0x5c(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x50(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%ecx
  mov    -0x40(%rbp),%rdx
  mov    -0x58(%rbp),%eax
  cltq
  mov    %cl,(%rdx,%rax,1)
  addl   $0x1,-0x5c(%rbp)
  addl   $0x1,-0x58(%rbp)
L54:
  mov    -0x5c(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x50(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  cmp    $0x20,%al
  jne    L144
  mov    -0x40(%rbp),%rdx
  mov    -0x58(%rbp),%eax
  cltq
  movb   $0x0,(%rdx,%rax,1)
L97:
  subl   $0x1,-0x60(%rbp)
L3:
  cmpl   $0x0,-0x60(%rbp)
  jns    L42
  movl   $0x0,-0x60(%rbp)
  jmp    L147
L128:
  mov    -0x60(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x68(%rbp),%rax
  lea    (%rdx,%rax,1),%rcx
  mov    -0x40(%rbp),%rdx
  mov    -0x60(%rbp),%eax
  cltq
  movzbl (%rdx,%rax,1),%eax
  mov    %al,(%rcx)
  addl   $0x1,-0x60(%rbp)
L147:
  mov    -0x60(%rbp),%eax
  cmp    -0x54(%rbp),%eax
  jl     L128
  mov    -0x60(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x68(%rbp),%rax
  add    %rdx,%rax
  movb   $0x0,(%rax)
  mov    %rbx,%rsp
  nop
  mov    -0x38(%rbp),%rax
  sub    %fs:0x28,%rax
  je     L75
  call   <__stack_chk_fail@plt>
L75:
  lea    -0x28(%rbp),%rsp
  pop    %rbx
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  pop    %rbp
  ret
```

assistant: ```c
void reverseWord(char *str) {
  char *p = str;
  int length = (int)strlen(str);
  int i, j, k = 0;
  char q[length];
  for (i = length - 1; i >= 0; i--) {
    if (' ' == p[i]) {
      j = i + 1;
      while (p[j] != ' ' && p[j] != '\0') {
        q[k] = p[j];
        j++;
        k++;
      }
      q[k++] = ' ';
    } else if (i == 0) {
      j = i;
      while (p[j] != ' ') {
        q[k] = p[j];
        j++;
        k++;
      }
      q[k] = '\0';
    }
  }
  for (i = 0; i < length; i++) {
    str[i] = q[i];
  }
  str[i] = '\0';
}
```