user: 请将这段汇编代码片段转换成等效的C代码:

```asm
<getDnaDictionary>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x20,%rsp
  mov    %rdi,-0x18(%rbp)
  cmpq   $0x0,-0x18(%rbp)
  jne    L13
  mov    $0x404,%edi
  call   <malloc@plt>
  mov    %rax,-0x18(%rbp)
L13:
  movl   $0x0,-0x4(%rbp)
  jmp    L20
L19:
  mov    -0x4(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  movl   $0x0,(%rax)
  addl   $0x1,-0x4(%rbp)
L20:
  cmpl   $0xff,-0x4(%rbp)
  jle    L19
  mov    -0x18(%rbp),%rax
  add    $0x184,%rax
  movl   $0x0,(%rax)
  mov    -0x18(%rbp),%rax
  add    $0x18c,%rax
  movl   $0x1,(%rax)
  mov    -0x18(%rbp),%rax
  add    $0x19c,%rax
  movl   $0x2,(%rax)
  mov    -0x18(%rbp),%rax
  add    $0x1d0,%rax
  movl   $0x3,(%rax)
  mov    -0x18(%rbp),%rax
  add    $0x104,%rax
  movl   $0x0,(%rax)
  mov    -0x18(%rbp),%rax
  add    $0x10c,%rax
  movl   $0x1,(%rax)
  mov    -0x18(%rbp),%rax
  add    $0x11c,%rax
  movl   $0x2,(%rax)
  mov    -0x18(%rbp),%rax
  add    $0x150,%rax
  movl   $0x3,(%rax)
  mov    -0x18(%rbp),%rax
  lea    0x1c8(%rax),%rdx
  mov    -0x18(%rbp),%rax
  mov    0x19c(%rax),%eax
  mov    %eax,(%rdx)
  mov    -0x18(%rbp),%rax
  lea    0x148(%rax),%rdx
  mov    -0x18(%rbp),%rax
  mov    0x19c(%rax),%eax
  mov    %eax,(%rdx)
  mov    -0x18(%rbp),%rax
  lea    0x1e4(%rax),%rdx
  mov    -0x18(%rbp),%rax
  mov    0x1d0(%rax),%eax
  mov    %eax,(%rdx)
  mov    -0x18(%rbp),%rax
  lea    0x164(%rax),%rdx
  mov    -0x18(%rbp),%rax
  mov    0x1d0(%rax),%eax
  mov    %eax,(%rdx)
  mov    -0x18(%rbp),%rax
  lea    0x1b4(%rax),%rdx
  mov    -0x18(%rbp),%rax
  mov    0x184(%rax),%eax
  mov    %eax,(%rdx)
  mov    -0x18(%rbp),%rax
  lea    0x134(%rax),%rdx
  mov    -0x18(%rbp),%rax
  mov    0x184(%rax),%eax
  mov    %eax,(%rdx)
  mov    -0x18(%rbp),%rax
  lea    0x1ac(%rax),%rdx
  mov    -0x18(%rbp),%rax
  mov    0x19c(%rax),%eax
  mov    %eax,(%rdx)
  mov    -0x18(%rbp),%rax
  lea    0x12c(%rax),%rdx
  mov    -0x18(%rbp),%rax
  mov    0x19c(%rax),%eax
  mov    %eax,(%rdx)
  mov    -0x18(%rbp),%rax
  lea    0x1cc(%rax),%rdx
  mov    -0x18(%rbp),%rax
  mov    0x19c(%rax),%eax
  mov    %eax,(%rdx)
  mov    -0x18(%rbp),%rax
  lea    0x14c(%rax),%rdx
  mov    -0x18(%rbp),%rax
  mov    0x19c(%rax),%eax
  mov    %eax,(%rdx)
  mov    -0x18(%rbp),%rax
  lea    0x1dc(%rax),%rdx
  mov    -0x18(%rbp),%rax
  mov    0x184(%rax),%eax
  mov    %eax,(%rdx)
  mov    -0x18(%rbp),%rax
  lea    0x15c(%rax),%rdx
  mov    -0x18(%rbp),%rax
  mov    0x184(%rax),%eax
  mov    %eax,(%rdx)
  mov    -0x18(%rbp),%rax
  lea    0x1a0(%rax),%rdx
  mov    -0x18(%rbp),%rax
  mov    0x184(%rax),%eax
  mov    %eax,(%rdx)
  mov    -0x18(%rbp),%rax
  lea    0x120(%rax),%rdx
  mov    -0x18(%rbp),%rax
  mov    0x184(%rax),%eax
  mov    %eax,(%rdx)
  mov    -0x18(%rbp),%rax
  lea    0x188(%rax),%rdx
  mov    -0x18(%rbp),%rax
  mov    0x19c(%rax),%eax
  mov    %eax,(%rdx)
  mov    -0x18(%rbp),%rax
  lea    0x108(%rax),%rdx
  mov    -0x18(%rbp),%rax
  mov    0x19c(%rax),%eax
  mov    %eax,(%rdx)
  mov    -0x18(%rbp),%rax
  lea    0x1d8(%rax),%rdx
  mov    -0x18(%rbp),%rax
  mov    0x19c(%rax),%eax
  mov    %eax,(%rdx)
  mov    -0x18(%rbp),%rax
  lea    0x158(%rax),%rdx
  mov    -0x18(%rbp),%rax
  mov    0x19c(%rax),%eax
  mov    %eax,(%rdx)
  mov    -0x18(%rbp),%rax
  lea    0x190(%rax),%rdx
  mov    -0x18(%rbp),%rax
  mov    0x19c(%rax),%eax
  mov    %eax,(%rdx)
  mov    -0x18(%rbp),%rax
  lea    0x110(%rax),%rdx
  mov    -0x18(%rbp),%rax
  mov    0x19c(%rax),%eax
  mov    %eax,(%rdx)
  mov    -0x18(%rbp),%rax
  lea    0x1b8(%rax),%rdx
  mov    -0x18(%rbp),%rax
  mov    0x19c(%rax),%eax
  mov    %eax,(%rdx)
  mov    -0x18(%rbp),%rax
  lea    0x138(%rax),%rdx
  mov    -0x18(%rbp),%rax
  mov    0x19c(%rax),%eax
  mov    %eax,(%rdx)
  mov    -0x18(%rbp),%rax
  lea    0x1d4(%rax),%rdx
  mov    -0x18(%rbp),%rax
  mov    0x1d0(%rax),%eax
  mov    %eax,(%rdx)
  mov    -0x18(%rbp),%rax
  lea    0x154(%rax),%rdx
  mov    -0x18(%rbp),%rax
  mov    0x1d0(%rax),%eax
  mov    %eax,(%rdx)
  mov    -0x18(%rbp),%rax
  leave
  ret
```

assistant: ```c
int *getDnaDictionary(int *dic) {
  int i;
  if (dic == NULL)
    dic = (int *)malloc((256 + 1) * sizeof(int));
  for (i = 0; i < 256; i++)
    dic[i] = 0;
  dic['a'] = 0;
  dic['c'] = 1;
  dic['g'] = 2;
  dic['t'] = 3;
  dic['A'] = 0;
  dic['C'] = 1;
  dic['G'] = 2;
  dic['T'] = 3;
  dic['r'] = dic['g'];
  dic['R'] = dic['g'];
  dic['y'] = dic['t'];
  dic['Y'] = dic['t'];
  dic['m'] = dic['a'];
  dic['M'] = dic['a'];
  dic['k'] = dic['g'];
  dic['K'] = dic['g'];
  dic['s'] = dic['g'];
  dic['S'] = dic['g'];
  dic['w'] = dic['a'];
  dic['W'] = dic['a'];
  dic['h'] = dic['a'];
  dic['H'] = dic['a'];
  dic['b'] = dic['g'];
  dic['B'] = dic['g'];
  dic['v'] = dic['g'];
  dic['V'] = dic['g'];
  dic['d'] = dic['g'];
  dic['D'] = dic['g'];
  dic['n'] = dic['g'];
  dic['N'] = dic['g'];
  dic['u'] = dic['t'];
  dic['U'] = dic['t'];
  return dic;
}
```