user: 下面的汇编指令对应的C源代码是什么：

```asm
<hexdump>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x60,%rsp
  mov    %rdi,-0x58(%rbp)
  mov    %rsi,-0x60(%rbp)
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
  mov    -0x58(%rbp),%rax
  mov    %rax,-0x38(%rbp)
  mov    -0x60(%rbp),%rax
  shr    $0x2,%rax
  mov    %rax,-0x30(%rbp)
  movb   $0x0,-0x20(%rbp)
  movq   $0x0,-0x48(%rbp)
  jmp    L0
L123:
  mov    -0x48(%rbp),%rax
  lea    0x0(,%rax,8),%rdx
  mov    -0x38(%rbp),%rax
  add    %rdx,%rax
  mov    %rax,-0x28(%rbp)
  movq   $0x0,-0x40(%rbp)
  jmp    L70
L119:
  mov    -0x28(%rbp),%rdx
  mov    -0x40(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  cmp    $0x2f,%al
  jle    L104
  mov    -0x28(%rbp),%rdx
  mov    -0x40(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  cmp    $0x7a,%al
  jg     L104
  mov    -0x28(%rbp),%rdx
  mov    -0x40(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  mov    %al,-0x49(%rbp)
  jmp    L109
L104:
  movb   $0x2e,-0x49(%rbp)
L109:
  mov    -0x48(%rbp),%rax
  shl    $0x2,%rax
  and    $0xf,%eax
  mov    %rax,%rdx
  mov    -0x40(%rbp),%rax
  add    %rax,%rdx
  movzbl -0x49(%rbp),%eax
  mov    %al,-0x20(%rbp,%rdx,1)
  addq   $0x1,-0x40(%rbp)
L70:
  cmpq   $0x3,-0x40(%rbp)
  jbe    L119
  mov    -0x48(%rbp),%rax
  and    $0x3,%eax
  test   %rax,%rax
  jne    L29
  mov    -0x48(%rbp),%rax
  lea    0x0(,%rax,8),%rdx
  mov    -0x38(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%rax
  mov    -0x48(%rbp),%rdx
  lea    0x0(,%rdx,8),%rcx
  mov    -0x38(%rbp),%rdx
  add    %rdx,%rcx
  mov    %rax,%rdx
  mov    %rcx,%rsi
  lea    D11(%rip),%rax
  mov    %rax,%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  jmp    L107
L29:
  mov    -0x48(%rbp),%rax
  lea    0x0(,%rax,8),%rdx
  mov    -0x38(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%rax
  mov    %rax,%rsi
  lea    D22(%rip),%rax
  mov    %rax,%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  mov    -0x48(%rbp),%rax
  and    $0x3,%eax
  cmp    $0x3,%rax
  jne    L107
  lea    -0x20(%rbp),%rax
  mov    %rax,%rsi
  lea    D19(%rip),%rax
  mov    %rax,%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  movb   $0x0,-0x20(%rbp)
L107:
  addq   $0x1,-0x48(%rbp)
L0:
  mov    -0x48(%rbp),%rax
  cmp    -0x30(%rbp),%rax
  jb     L123
  subq   $0x1,-0x48(%rbp)
  mov    -0x48(%rbp),%rax
  and    $0x3,%eax
  cmp    $0x3,%rax
  je     L114
  jmp    L92
L124:
  lea    D5(%rip),%rax
  mov    %rax,%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  addq   $0x1,-0x48(%rbp)
L92:
  mov    -0x48(%rbp),%rax
  and    $0x3,%eax
  cmp    $0x3,%rax
  jne    L124
  lea    -0x20(%rbp),%rax
  mov    %rax,%rsi
  lea    D19(%rip),%rax
  mov    %rax,%rdi
  mov    $0x0,%eax
  call   <printf@plt>
L114:
  nop
  mov    -0x8(%rbp),%rax
  sub    %fs:0x28,%rax
  je     L56
  call   <__stack_chk_fail@plt>
L56:
  leave
  ret
```

tool_calls: name: retrieve_data
arguments: label: D11
type: string
name: retrieve_data
arguments: label: D22
type: string
name: retrieve_data
arguments: label: D19
type: string
name: retrieve_data
arguments: label: D5
type: string

tool: D11: 0x%p: %08x 

tool: D22: %08x 

tool: D19:  %s


tool: D5:          

assistant: ```c
void hexdump(const char *buf, size_t len) {
  uint32_t *data, end, i, j;
  char *ascii, ch, text[17];
  data = (uint32_t *)buf;
  end = len / 4;
  text[0] = '\0';
  for (i = 0; i < end; i++) {
    ascii = (char *)(data + i);
    for (j = 0; j < 4; j++) {
      if (('0' <= ascii[j]) && (ascii[j] <= 'z')) {
        ch = ascii[j];
      } else {
        ch = '.';
      }
      text[((i << 2) & 0xf) + j] = ch;
    }
    if ((i & 0x3) == 0) {
      printf("0x%p: %08x ", data + i, data[i]);
    } else {
      printf("%08x ", data[i]);
      if ((i & 0x3) == 0x3) {
        printf(" %s\n", text);
        text[0] = '\0';
      }
    }
  }
  if ((--i & 0x3) != 0x3) {
    while ((i & 0x3) != 0x3) {
      printf("         ");
      i++;
    }
    printf(" %s\n", text);
  }
}
```