user: 请从给定的汇编指令推导出C源代码:

```asm
<intToRoman_t>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x40,%rsp
  mov    %edi,-0x34(%rbp)
  mov    $0x80,%edi
  call   <malloc@plt>
  mov    %rax,-0x28(%rbp)
  mov    -0x28(%rbp),%rax
  mov    $0x10,%edx
  mov    $0x0,%esi
  mov    %rax,%rdi
  call   <memset@plt>
  mov    -0x34(%rbp),%eax
  add    $0x3e7,%eax
  cmp    $0x7ce,%eax
  jbe    L21
  mov    -0x34(%rbp),%eax
  movslq %eax,%rdx
  imul   $0x10624dd3,%rdx,%rdx
  shr    $0x20,%rdx
  sar    $0x6,%edx
  sar    $0x1f,%eax
  mov    %eax,%ecx
  mov    %edx,%eax
  sub    %ecx,%eax
  mov    $0x7a,%ecx
  mov    $0x7a,%edx
  mov    $0x4d,%esi
  mov    %eax,%edi
  call   <itr@plt>
  mov    %rax,-0x20(%rbp)
  mov    -0x20(%rbp),%rdx
  mov    -0x28(%rbp),%rax
  mov    %rdx,%rsi
  mov    %rax,%rdi
  call   <strcat@plt>
  mov    -0x20(%rbp),%rax
  mov    %rax,%rdi
  call   <free@plt>
L21:
  mov    -0x34(%rbp),%eax
  movslq %eax,%rdx
  imul   $0x10624dd3,%rdx,%rdx
  shr    $0x20,%rdx
  sar    $0x6,%edx
  mov    %eax,%ecx
  sar    $0x1f,%ecx
  sub    %ecx,%edx
  imul   $0x3e8,%edx,%edx
  sub    %edx,%eax
  mov    %eax,-0x34(%rbp)
  mov    -0x34(%rbp),%eax
  add    $0x63,%eax
  cmp    $0xc6,%eax
  jbe    L12
  mov    -0x34(%rbp),%eax
  movslq %eax,%rdx
  imul   $0x51eb851f,%rdx,%rdx
  shr    $0x20,%rdx
  sar    $0x5,%edx
  sar    $0x1f,%eax
  mov    %eax,%ecx
  mov    %edx,%eax
  sub    %ecx,%eax
  mov    $0x4d,%ecx
  mov    $0x44,%edx
  mov    $0x43,%esi
  mov    %eax,%edi
  call   <itr@plt>
  mov    %rax,-0x18(%rbp)
  mov    -0x18(%rbp),%rdx
  mov    -0x28(%rbp),%rax
  mov    %rdx,%rsi
  mov    %rax,%rdi
  call   <strcat@plt>
  mov    -0x18(%rbp),%rax
  mov    %rax,%rdi
  call   <free@plt>
L12:
  mov    -0x34(%rbp),%eax
  movslq %eax,%rdx
  imul   $0x51eb851f,%rdx,%rdx
  shr    $0x20,%rdx
  sar    $0x5,%edx
  mov    %eax,%ecx
  sar    $0x1f,%ecx
  sub    %ecx,%edx
  imul   $0x64,%edx,%edx
  sub    %edx,%eax
  mov    %eax,-0x34(%rbp)
  mov    -0x34(%rbp),%eax
  add    $0x9,%eax
  cmp    $0x12,%eax
  jbe    L25
  mov    -0x34(%rbp),%eax
  movslq %eax,%rdx
  imul   $0x66666667,%rdx,%rdx
  shr    $0x20,%rdx
  sar    $0x2,%edx
  sar    $0x1f,%eax
  mov    %eax,%ecx
  mov    %edx,%eax
  sub    %ecx,%eax
  mov    $0x43,%ecx
  mov    $0x4c,%edx
  mov    $0x58,%esi
  mov    %eax,%edi
  call   <itr@plt>
  mov    %rax,-0x10(%rbp)
  mov    -0x10(%rbp),%rdx
  mov    -0x28(%rbp),%rax
  mov    %rdx,%rsi
  mov    %rax,%rdi
  call   <strcat@plt>
  mov    -0x10(%rbp),%rax
  mov    %rax,%rdi
  call   <free@plt>
L25:
  mov    -0x34(%rbp),%edx
  movslq %edx,%rax
  imul   $0x66666667,%rax,%rax
  shr    $0x20,%rax
  sar    $0x2,%eax
  mov    %edx,%esi
  sar    $0x1f,%esi
  sub    %esi,%eax
  mov    %eax,%ecx
  mov    %ecx,%eax
  shl    $0x2,%eax
  add    %ecx,%eax
  add    %eax,%eax
  sub    %eax,%edx
  mov    %edx,-0x34(%rbp)
  cmpl   $0x0,-0x34(%rbp)
  je     L29
  mov    -0x34(%rbp),%eax
  mov    $0x58,%ecx
  mov    $0x56,%edx
  mov    $0x49,%esi
  mov    %eax,%edi
  call   <itr@plt>
  mov    %rax,-0x8(%rbp)
  mov    -0x8(%rbp),%rdx
  mov    -0x28(%rbp),%rax
  mov    %rdx,%rsi
  mov    %rax,%rdi
  call   <strcat@plt>
  mov    -0x8(%rbp),%rax
  mov    %rax,%rdi
  call   <free@plt>
L29:
  mov    -0x28(%rbp),%rax
  leave
  ret
```

assistant: ```c
char *intToRoman_t(int num) {
  char *ret = (char *)malloc(sizeof(char *) * 16);
  memset(ret, 0, 16);
  if (num / 1000) {
    char *tmp = itr(num / 1000, 'M', 'z', 'z');
    strcat(ret, tmp);
    free(tmp);
  }
  num %= 1000;
  if (num / 100) {
    char *tmp = itr(num / 100, 'C', 'D', 'M');
    strcat(ret, tmp);
    free(tmp);
  }
  num %= 100;
  if (num / 10) {
    char *tmp = itr(num / 10, 'X', 'L', 'C');
    strcat(ret, tmp);
    free(tmp);
  }
  num %= 10;
  if (num) {
    char *tmp = itr(num, 'I', 'V', 'X');
    strcat(ret, tmp);
    free(tmp);
  }
  return ret;
}
```