user: 这段汇编代码用C语言表示是什么样的：

```asm
<main>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x30,%rsp
  mov    %edi,-0x24(%rbp)
  mov    %rsi,-0x30(%rbp)
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
  cmpl   $0x3,-0x24(%rbp)
  je     L25
  mov    $0x0,%edi
  call   <usage@plt>
L25:
  mov    -0x30(%rbp),%rax
  add    $0x8,%rax
  mov    (%rax),%rax
  lea    -0x20(%rbp),%rdx
  lea    D39(%rip),%rcx
  mov    %rcx,%rsi
  mov    %rax,%rdi
  call   <sscanf@plt>
  test   %rax,%rax
  je     L60
  mov    -0x20(%rbp),%eax
  test   %eax,%eax
  jg     L4
L60:
  lea    D2(%rip),%rax
  mov    %rax,%rdi
  call   <usage@plt>
L4:
  mov    -0x30(%rbp),%rax
  add    $0x10,%rax
  mov    (%rax),%rax
  lea    -0x1c(%rbp),%rdx
  lea    D39(%rip),%rcx
  mov    %rcx,%rsi
  mov    %rax,%rdi
  call   <sscanf@plt>
  test   %rax,%rax
  je     L71
  mov    -0x1c(%rbp),%eax
  test   %eax,%eax
  jle    L71
  mov    -0x1c(%rbp),%eax
  cmp    $0x20,%eax
  jle    L59
L71:
  lea    D68(%rip),%rax
  mov    %rax,%rdi
  call   <usage@plt>
L59:
  mov    -0x1c(%rbp),%eax
  cmp    $0x1d,%eax
  jg     L20
  mov    -0x1c(%rbp),%eax
  mov    $0x1,%edx
  mov    %eax,%ecx
  shl    %cl,%edx
  mov    -0x20(%rbp),%eax
  cmp    %eax,%edx
  jg     L20
  lea    D12(%rip),%rax
  mov    %rax,%rdi
  call   <usage@plt>
L20:
  mov    -0x1c(%rbp),%eax
  lea    -0x20(%rbp),%rdx
  mov    %rdx,%rcx
  mov    %eax,%edx
  mov    $0x1,%esi
  mov    $0x1,%edi
  call   <jerasure_matrix_to_bitmatrix@plt>
  mov    %rax,-0x10(%rbp)
  movl   $0x0,-0x14(%rbp)
  movl   $0x0,-0x18(%rbp)
  jmp    L51
L77:
  mov    -0x18(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x10(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%eax
  add    %eax,-0x14(%rbp)
  addl   $0x1,-0x18(%rbp)
L51:
  mov    -0x1c(%rbp),%edx
  mov    -0x1c(%rbp),%eax
  imul   %edx,%eax
  cmp    %eax,-0x18(%rbp)
  jl     L77
  mov    -0x1c(%rbp),%edx
  mov    -0x20(%rbp),%eax
  mov    %edx,%esi
  mov    %eax,%edi
  call   <cauchy_n_ones@plt>
  mov    %eax,%esi
  lea    D36(%rip),%rax
  mov    %rax,%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  mov    $0xa,%edi
  call   <putchar@plt>
  mov    -0x14(%rbp),%eax
  mov    %eax,%esi
  lea    D61(%rip),%rax
  mov    %rax,%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  mov    $0xa,%edi
  call   <putchar@plt>
  mov    -0x1c(%rbp),%ecx
  mov    -0x1c(%rbp),%edx
  mov    -0x1c(%rbp),%esi
  mov    -0x10(%rbp),%rax
  mov    %rax,%rdi
  call   <jerasure_print_bitmatrix@plt>
  mov    $0x0,%eax
  mov    -0x8(%rbp),%rdx
  sub    %fs:0x28,%rdx
  je     L73
  call   <__stack_chk_fail@plt>
L73:
  leave
  ret
```

tool_calls: name: unpack_data
arguments: tag: D39
datatype: string
name: unpack_data
arguments: tag: D2
datatype: string
name: unpack_data
arguments: tag: D68
datatype: string
name: unpack_data
arguments: tag: D12
datatype: string
name: unpack_data
arguments: tag: D36
datatype: string
name: unpack_data
arguments: tag: D61
datatype: string

tool: D39: %d

tool: D2: Bad n

tool: D68: Bad w

tool: D12: n is too big

tool: D36: # Ones: %d


tool: D61: Bitmatrix has %d ones


assistant: ```c
int main(int argc, char **argv) {
  int n, i, no, w;
  int *bitmatrix;
  if (argc != 3)
    usage(NULL);
  if (sscanf(argv[1], "%d", &n) == 0 || n <= 0)
    usage("Bad n");
  if (sscanf(argv[2], "%d", &w) == 0 || w <= 0 || w > 32)
    usage("Bad w");
  if (w < 30 && n >= (1 << w))
    usage("n is too big");
  bitmatrix = jerasure_matrix_to_bitmatrix(1, 1, w, &n);
  no = 0;
  for (i = 0; i < w * w; i++)
    no += bitmatrix[i];
  printf("# Ones: %d\n", cauchy_n_ones(n, w));
  printf("\n");
  printf("Bitmatrix has %d ones\n", no);
  printf("\n");
  jerasure_print_bitmatrix(bitmatrix, w, w, w);
  return 0;
}
```