user: 请从给定的汇编指令推导出C源代码:

```asm
<morse_encode>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  mov    %rdi,%r12
  push   %rbp
  lea    0x1(%rdx),%ebp
  push   %rbx
  mov    %edx,%ebx
  mov    %ebp,%edi
  lea    0x1(%rbx,%rbx,2),%r15d
  sub    $0x38,%rsp
  mov    %rsi,0x10(%rsp)
  mov    %edx,0x8(%rsp)
  mov    %ecx,0x1c(%rsp)
  call   <malloc@plt>
  mov    %r15d,%edi
  mov    %rax,%r13
  call   <malloc@plt>
  mov    %ebp,%edi
  mov    %rax,%r14
  call   <malloc@plt>
  mov    %r15d,%edi
  mov    %rax,%rbp
  call   <malloc@plt>
  lea    0x0(,%rbx,8),%edi
  sub    %ebx,%edi
  mov    %rax,%r15
  mov    %rax,0x28(%rsp)
  add    $0x1,%edi
  call   <malloc@plt>
  movb   $0x0,(%r12)
  mov    %rax,0x20(%rsp)
  movb   $0x0,0x0(%r13)
  movb   $0x0,(%r14)
  movb   $0x0,0x0(%rbp)
  movb   $0x0,(%r15)
  movb   $0x0,(%rax)
  test   %ebx,%ebx
  jle    L65
  xor    %r15d,%r15d
  lea    D21(%rip),%rbx
  nopl   0x0(%rax)
L35:
  mov    %rbx,%rsi
  mov    %r13,%rdi
  call   <strcat@plt>
  mov    %r15d,%ecx
  lea    0x1(%r15),%r15d
  cmp    %r15d,0x8(%rsp)
  jne    L35
  mov    %r13,%rsi
  mov    %r14,%rdi
  mov    %ecx,0x8(%rsp)
  xor    %r15d,%r15d
  call   <strcat@plt>
  mov    %r13,%rsi
  mov    %r14,%rdi
  lea    D8(%rip),%rbx
  call   <strcat@plt>
  mov    %r13,%rsi
  mov    %r14,%rdi
  call   <strcat@plt>
  mov    0x8(%rsp),%ecx
  nopl   0x0(%rax)
L98:
  mov    %rbx,%rsi
  mov    %rbp,%rdi
  mov    %ecx,0x8(%rsp)
  call   <strcat@plt>
  mov    0x8(%rsp),%ecx
  mov    %r15d,%eax
  add    $0x1,%r15d
  cmp    %eax,%ecx
  jne    L98
L41:
  mov    0x28(%rsp),%rbx
  mov    %rbp,%rsi
  mov    %rbx,%rdi
  call   <strcat@plt>
  mov    %rbx,%rdi
  mov    %rbp,%rsi
  call   <strcat@plt>
  mov    %rbx,%rdi
  mov    %rbp,%rsi
  mov    $0x7,%ebx
  call   <strcat@plt>
  nopl   0x0(%rax)
L5:
  mov    0x20(%rsp),%rdi
  mov    %rbp,%rsi
  call   <strcat@plt>
  sub    $0x1,%ebx
  jne    L5
  mov    0x1c(%rsp),%edx
  xor    %r15d,%r15d
  lea    D8(%rip),%rbx
  test   %edx,%edx
  jle    L18
  nopl   0x0(%rax)
L20:
  mov    %rbx,%rsi
  mov    %r12,%rdi
  add    $0x1,%r15d
  call   <strcat@plt>
  cmp    %r15d,0x1c(%rsp)
  jne    L20
L18:
  movq   $0x0,0x8(%rsp)
  nopw   0x0(%rax,%rax,1)
L79:
  mov    0x10(%rsp),%rdi
  call   <strlen@plt>
  cltq
  cmp    0x8(%rsp),%rax
  jbe    L44
  mov    0x8(%rsp),%rax
  mov    0x10(%rsp),%rdx
  movsbl (%rdx,%rax,1),%edi
  add    $0x1,%rax
  mov    %rax,0x8(%rsp)
  cmp    $0x20,%dil
  je     L37
  call   <morse_str@plt>
  xor    %r15d,%r15d
  mov    %rax,%rbx
  jmp    L43
  nopl   (%rax)
L99:
  movsbl (%rbx,%r15,1),%esi
  mov    %r14,%rcx
  mov    %r13,%rdx
  mov    %r12,%rdi
  add    $0x1,%r15
  call   <morse_put@plt>
  mov    %rbp,%rsi
  mov    %r12,%rdi
  call   <strcat@plt>
L43:
  mov    %rbx,%rdi
  call   <strlen@plt>
  lea    (%rbx,%r15,1),%rdx
  sub    $0x1,%eax
  cltq
  cmp    %r15,%rax
  ja     L99
  movsbl (%rdx),%esi
  mov    %r14,%rcx
  mov    %r13,%rdx
  mov    %r12,%rdi
  call   <morse_put@plt>
  mov    0x10(%rsp),%rax
  mov    0x8(%rsp),%rcx
  testb  $0xdf,(%rax,%rcx,1)
  je     L79
  mov    0x28(%rsp),%rsi
  mov    %r12,%rdi
  call   <strcat@plt>
  jmp    L79
  nopw   0x0(%rax,%rax,1)
L37:
  mov    0x20(%rsp),%rsi
  mov    %r12,%rdi
  call   <strcat@plt>
  jmp    L79
  nopw   0x0(%rax,%rax,1)
L44:
  mov    0x1c(%rsp),%eax
  xor    %r15d,%r15d
  lea    D8(%rip),%rbx
  test   %eax,%eax
  jle    L27
  nopw   0x0(%rax,%rax,1)
L9:
  mov    %rbx,%rsi
  mov    %r12,%rdi
  add    $0x1,%r15d
  call   <strcat@plt>
  cmp    %r15d,0x1c(%rsp)
  jne    L9
L27:
  mov    %r13,%rdi
  call   <free@plt>
  mov    %r14,%rdi
  call   <free@plt>
  mov    %rbp,%rdi
  call   <free@plt>
  mov    0x28(%rsp),%rdi
  call   <free@plt>
  mov    0x20(%rsp),%rdi
  call   <free@plt>
  add    $0x38,%rsp
  mov    %r12,%rax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L65:
  mov    %r13,%rsi
  mov    %r14,%rdi
  call   <strcat@plt>
  mov    %r13,%rsi
  mov    %r14,%rdi
  call   <strcat@plt>
  mov    %r13,%rsi
  mov    %r14,%rdi
  call   <strcat@plt>
  jmp    L41
```

tool_calls: name: unpack_data
arguments: data_label: D21
data_type: string
name: unpack_data
arguments: data_label: D8
data_type: string

tool: D21: 1

tool: D8: 0

assistant: ```c
char *morse_encode(char *_signal, const char *message, int unit_len, int pad_len) {
  char *signal = _signal;
  char *dot, *tier, *dt_separ, *sym_separ, *word_separ;
  dot = malloc(unit_len + 1);
  tier = malloc(unit_len * 3 + 1);
  dt_separ = malloc(unit_len + 1);
  sym_separ = malloc(unit_len * 3 + 1);
  word_separ = malloc(unit_len * 7 + 1);
  signal[0] = '\0';
  dot[0] = '\0';
  tier[0] = '\0';
  dt_separ[0] = '\0';
  sym_separ[0] = '\0';
  word_separ[0] = '\0';
  for (int i = 0; i < unit_len; i++)
    strcat(dot, "1");
  for (int i = 0; i < 3; i++)
    strcat(tier, dot);
  for (int i = 0; i < unit_len; i++)
    strcat(dt_separ, "0");
  for (int i = 0; i < 3; i++)
    strcat(sym_separ, dt_separ);
  for (int i = 0; i < 7; i++)
    strcat(word_separ, dt_separ);
  for (int i = 0; i < pad_len; i++)
    strcat(signal, "0");
  for (size_t i = 0; i < strlen(message); i++) {
    if (message[i] == ' ') {
      strcat(signal, word_separ);
      continue;
    }
    const char *mr = morse_str(message[i]);
    size_t j;
    for (j = 0; j < strlen(mr) - 1; j++) {
      morse_put(signal, mr[j], dot, tier);
      strcat(signal, dt_separ);
    }
    morse_put(signal, mr[j], dot, tier);
    if (message[i + 1] != ' ' && message[i + 1] != '\0')
      strcat(signal, sym_separ);
  }
  for (int i = 0; i < pad_len; i++)
    strcat(signal, "0");
  free(dot);
  free(tier);
  free(dt_separ);
  free(sym_separ);
  free(word_separ);
  return signal;
}
```