user: 请从给定的汇编指令推导出C源代码：

```asm
<print_board>:
  endbr64
  push   %r15
  push   %r14
  lea    D91(%rip),%r14
  push   %r13
  lea    D98(%rip),%r13
  push   %r12
  lea    D28(%rip),%r12
  push   %rbp
  xor    %ebp,%ebp
  push   %rbx
  mov    %rdi,%rbx
  mov    $0xa,%edi
  add    $0x20,%rbx
  sub    $0x8,%rsp
  call   <putchar@plt>
  lea    D38(%rip),%rdi
  call   <puts@plt>
  lea    D61(%rip),%rdi
  call   <puts@plt>
  lea    D38(%rip),%rdi
  call   <puts@plt>
  xchg   %ax,%ax
L1:
  lea    D47(%rip),%rdi
  add    $0x1,%ebp
  lea    -0x20(%rbx),%r15
  call   <puts@plt>
  mov    %ebp,%esi
  lea    D69(%rip),%rdi
  xor    %eax,%eax
  call   <printf@plt>
  jmp    L68
  nopl   (%rax)
L49:
  je     L10
  call   <piece_name@plt>
  mov    %r13,%rdi
  mov    %rax,%rsi
  xor    %eax,%eax
  call   <printf@plt>
L52:
  add    $0x4,%r15
  cmp    %rbx,%r15
  je     L15
L68:
  mov    (%r15),%edi
  test   %edi,%edi
  jle    L49
  call   <piece_name@plt>
  add    $0x4,%r15
  mov    %r12,%rdi
  mov    %rax,%rsi
  xor    %eax,%eax
  call   <printf@plt>
  cmp    %rbx,%r15
  jne    L68
L15:
  mov    %ebp,%esi
  lea    D43(%rip),%rdi
  lea    0x20(%r15),%rbx
  xor    %eax,%eax
  call   <printf@plt>
  lea    D47(%rip),%rdi
  call   <puts@plt>
  cmp    $0x8,%ebp
  jne    L1
  lea    D38(%rip),%rdi
  call   <puts@plt>
  lea    D61(%rip),%rdi
  call   <puts@plt>
  add    $0x8,%rsp
  lea    D38(%rip),%rdi
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  jmp    1090 <puts@plt>
  cs nopw 0x0(%rax,%rax,1)
L10:
  mov    %r14,%rdi
  xor    %eax,%eax
  call   <printf@plt>
  jmp    L52
```

tool_calls: name: unpack_data
arguments: tag: D91
datatype: string
name: unpack_data
arguments: tag: D98
datatype: string
name: unpack_data
arguments: tag: D28
datatype: string
name: unpack_data
arguments: tag: D38
datatype: string
name: unpack_data
arguments: tag: D61
datatype: string
name: unpack_data
arguments: tag: D47
datatype: string
name: unpack_data
arguments: tag: D69
datatype: string
name: unpack_data
arguments: tag: D43
datatype: string

tool: D91: 0	

tool: D98: b%s	

tool: D28: w%s	

tool: D38: ## ## ***************************************************************** ## ##

tool: D61:   *   |   A   |   B   |   C   |   D   |   E   |   F   |   G   |   H   |   *  

tool: D47: *****                                                                   *****

tool: D69: | %d |	

tool: D43: | %d |


assistant: ```c
void print_board(int boardcopy[8][8]) {
  int a, b;
  printf("\n");
  printf("## ## ***************************************************************** ## ##\n");
  printf("  *   |   A   |   B   |   C   |   D   |   E   |   F   |   G   |   H   |   *  \n");
  printf("## ## ***************************************************************** ## ##\n");
  for (a = 0; a < 8; a++) {
    printf("*****                                                                   *****\n");
    printf("| %d |\t", a + 1);
    for (b = 0; b < 8; b++) {
      if (boardcopy[a][b] > 0)
        printf("w%s\t", piece_name(boardcopy[a][b]));
      else if (boardcopy[a][b] < 0)
        printf("b%s\t", piece_name(boardcopy[a][b]));
      else
        printf("0\t");
    }
    printf("| %d |\n", a + 1);
    printf("*****                                                                   *****\n");
  }
  printf("## ## ***************************************************************** ## ##\n");
  printf("  *   |   A   |   B   |   C   |   D   |   E   |   F   |   G   |   H   |   *  \n");
  printf("## ## ***************************************************************** ## ##\n");
}
```