user: 请从给定的汇编指令推导出C源代码：

```asm
<print_diff>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x30,%rsp
  mov    %edi,-0x14(%rbp)
  mov    %esi,-0x18(%rbp)
  mov    %rdx,-0x20(%rbp)
  mov    %rcx,-0x28(%rbp)
  mov    -0x18(%rbp),%eax
  mov    %eax,-0x4(%rbp)
  cmpl   $0x10,-0x4(%rbp)
  jle    L128
  movl   $0x10,-0x4(%rbp)
L128:
  lea    D85(%rip),%rax
  mov    %rax,%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  movl   $0x0,-0x8(%rbp)
  jmp    L114
L13:
  mov    -0x14(%rbp),%edx
  mov    -0x8(%rbp),%eax
  add    %edx,%eax
  movslq %eax,%rdx
  mov    -0x20(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  movzbl %al,%eax
  mov    %eax,%esi
  lea    D3(%rip),%rax
  mov    %rax,%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  addl   $0x1,-0x8(%rbp)
L114:
  mov    -0x8(%rbp),%eax
  cmp    -0x4(%rbp),%eax
  jl     L13
  mov    -0x18(%rbp),%eax
  cmp    -0x4(%rbp),%eax
  je     L150
  lea    D12(%rip),%rax
  jmp    L162
L150:
  lea    D69(%rip),%rax
L162:
  mov    %rax,%rsi
  lea    D45(%rip),%rax
  mov    %rax,%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  movl   $0x0,-0x8(%rbp)
  jmp    L57
L94:
  mov    -0x14(%rbp),%edx
  mov    -0x8(%rbp),%eax
  add    %edx,%eax
  movslq %eax,%rdx
  mov    -0x20(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  cmp    $0x20,%al
  jbe    L12
  mov    -0x14(%rbp),%edx
  mov    -0x8(%rbp),%eax
  add    %edx,%eax
  movslq %eax,%rdx
  mov    -0x20(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  movzbl %al,%eax
  jmp    L49
L12:
  mov    $0x2e,%eax
L49:
  mov    %eax,%esi
  lea    D42(%rip),%rax
  mov    %rax,%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  addl   $0x1,-0x8(%rbp)
L57:
  mov    -0x8(%rbp),%eax
  cmp    -0x4(%rbp),%eax
  jl     L94
  lea    D36(%rip),%rax
  mov    %rax,%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  movl   $0x0,-0x8(%rbp)
  jmp    L115
L61:
  mov    -0x14(%rbp),%edx
  mov    -0x8(%rbp),%eax
  add    %edx,%eax
  movslq %eax,%rdx
  mov    -0x28(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  movzbl %al,%eax
  mov    %eax,%esi
  lea    D3(%rip),%rax
  mov    %rax,%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  addl   $0x1,-0x8(%rbp)
L115:
  mov    -0x8(%rbp),%eax
  cmp    -0x4(%rbp),%eax
  jl     L61
  mov    -0x18(%rbp),%eax
  cmp    -0x4(%rbp),%eax
  je     L157
  lea    D12(%rip),%rax
  jmp    L156
L157:
  lea    D69(%rip),%rax
L156:
  mov    %rax,%rsi
  lea    D45(%rip),%rax
  mov    %rax,%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  movl   $0x0,-0x8(%rbp)
  jmp    L59
L126:
  mov    -0x14(%rbp),%edx
  mov    -0x8(%rbp),%eax
  add    %edx,%eax
  movslq %eax,%rdx
  mov    -0x28(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  cmp    $0x20,%al
  jbe    L124
  mov    -0x14(%rbp),%edx
  mov    -0x8(%rbp),%eax
  add    %edx,%eax
  movslq %eax,%rdx
  mov    -0x28(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  movzbl %al,%eax
  jmp    L104
L124:
  mov    $0x2e,%eax
L104:
  mov    %eax,%esi
  lea    D42(%rip),%rax
  mov    %rax,%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  addl   $0x1,-0x8(%rbp)
L59:
  mov    -0x8(%rbp),%eax
  cmp    -0x4(%rbp),%eax
  jl     L126
  mov    $0xa,%edi
  call   <putchar@plt>
  nop
  leave
  ret
```

tool_calls: name: retrieve_data
arguments: tag: D85
type: string
name: retrieve_data
arguments: tag: D3
type: string
name: retrieve_data
arguments: tag: D12
type: string
name: retrieve_data
arguments: tag: D69
type: string
name: retrieve_data
arguments: tag: D45
type: string
name: retrieve_data
arguments: tag: D42
type: string
name: retrieve_data
arguments: tag: D36
type: string

tool: D85: OLD:

tool: D3:  %02x

tool: D12:  ...

tool: 

tool: D45: %s
    

tool: D42:  %2c

tool: D36: 
NEW:

assistant: ```c
void print_diff(off_t from, int max, const unsigned char *o, const unsigned char *n) {
  int i, len = max;
  if (len > 16)
    len = 16;
  printf("OLD:");
  for (i = 0; i < len; i++)
    printf(" %02x", o[from + i]);
  printf("%s\n    ", max != len ? " ..." : "");
  for (i = 0; i < len; i++)
    printf(" %2c", o[from + i] > ' ' ? o[from + i] : '.');
  printf("\nNEW:");
  for (i = 0; i < len; i++)
    printf(" %02x", n[from + i]);
  printf("%s\n    ", max != len ? " ..." : "");
  for (i = 0; i < len; i++)
    printf(" %2c", n[from + i] > ' ' ? n[from + i] : '.');
  printf("\n");
}
```