user: 下面的汇编指令对应的C源代码是什么：

```asm
<main>:
  endbr64
  sub    $0x8,%rsp
  cmp    $0x2,%edi
  jne    L30
  mov    0x8(%rsi),%rdx
  movzbl (%rdx),%esi
  test   %sil,%sil
  je     L99
  mov    $0x0,%eax
  movabs $0x8000000020006001,%r8
  jmp    L44
L30:
  mov    %edi,%esi
  lea    D53(%rip),%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  lea    D56(%rip),%rdi
  call   <puts@plt>
  mov    $0xffffffff,%eax
  jmp    L58
L127:
  lea    0x1(%rax),%rcx
  movzbl 0x1(%rdx,%rax,1),%esi
  test   %sil,%sil
  je     L47
  mov    %rcx,%rax
L44:
  lea    -0x20(%rsi),%ecx
  cmp    $0x3f,%cl
  ja     L101
  bt     %rcx,%r8
  jb     L127
L101:
  movsbl %sil,%esi
  lea    D47(%rip),%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  lea    D22(%rip),%rdi
  call   <puts@plt>
  mov    $0xffffffff,%eax
  jmp    L58
L47:
  test   %eax,%eax
  js     L18
  movslq %eax,%rdi
  add    %rdi,%rdx
  mov    %eax,%eax
  mov    %rdx,%rcx
  sub    %rax,%rcx
  mov    $0x0,%esi
  jmp    L117
L18:
  mov    $0x0,%esi
  jmp    L20
L90:
  lea    D35(%rip),%rdi
  call   <puts@plt>
  mov    $0xfffffffe,%eax
  jmp    L58
L116:
  lea    0x1(%rsi,%rsi,1),%esi
L0:
  cmp    %rcx,%rdx
  je     L20
  sub    $0x1,%rdx
  add    %esi,%esi
  js     L90
L117:
  movzbl (%rdx),%eax
  cmp    $0x2e,%al
  je     L116
  cmp    $0x2d,%al
  je     L26
  cmp    $0x20,%al
  je     L0
  cmp    $0x5f,%al
  je     L75
  mov    %esi,%edi
  shl    $0x5,%edi
  xor    $0x1f,%edi
  cmp    $0x3d,%al
  cmove  %edi,%esi
  jmp    L0
L26:
  lea    0x3(,%rsi,4),%esi
  jmp    L0
L75:
  shl    $0x4,%esi
  xor    $0xf,%esi
  jmp    L0
L99:
  mov    $0x0,%esi
L20:
  lea    D18(%rip),%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  mov    $0x0,%eax
L58:
  add    $0x8,%rsp
  ret
```

tool_calls: name: read_data
arguments: tag: D53
datatype: string
name: read_data
arguments: tag: D56
datatype: string
name: read_data
arguments: tag: D47
datatype: string
name: read_data
arguments: tag: D22
datatype: string
name: read_data
arguments: tag: D35
datatype: string
name: read_data
arguments: tag: D18
datatype: string

tool: D53: argc = %d


tool: D56: Invalid arg. Enter a dot-dash pattern

tool: D47: found character '%c'


tool: D22: Pattern must only include . - _ = or ' '.

tool: D35: Pattern too long for a single int to hold.

tool: D18: %u


assistant: ```c
int main(int argc, char **argv) {
  if (argc != 2) {
    printf("argc = %d\n", argc);
    printf("Invalid arg. Enter a dot-dash pattern\n");
    return -1;
  }
  int i = 0;
  char *pattern = argv[1];
  while (pattern[i] != '\0') {
    if (pattern[i] != '.' && pattern[i] != '-' && pattern[i] != ' ' && pattern[i] != '_' && pattern[i] != '=') {
      printf("found character '%c'\n", pattern[i]);
      printf("Pattern must only include . - _ = or ' '.\n");
      return -1;
    }
    i++;
  }
  unsigned int num = 0;
  for (--i; i >= 0; i--) {
    if (num & 0x80000000) {
      printf("Pattern too long for a single int to hold.\n");
      return -2;
    }
    if (pattern[i] == '.') {
      num <<= 1;
      num ^= 0b1;
    } else if (pattern[i] == '-') {
      num <<= 1;
      num ^= 0b1;
      num <<= 1;
      num ^= 0b1;
    } else if (pattern[i] == ' ') {
    } else if (pattern[i] == '_') {
      num <<= 1;
      num ^= 0b1;
      num <<= 1;
      num ^= 0b1;
      num <<= 1;
      num ^= 0b1;
      num <<= 1;
      num ^= 0b1;
    } else if (pattern[i] == '=') {
      num <<= 1;
      num ^= 0b1;
      num <<= 1;
      num ^= 0b1;
      num <<= 1;
      num ^= 0b1;
      num <<= 1;
      num ^= 0b1;
      num <<= 1;
      num ^= 0b1;
    }
    if (i != 0) {
      num <<= 1;
    }
  }
  printf("%u\n", num);
  return 0;
}
```