user: 下面的汇编指令对应的C源代码是什么：

```asm
<bmp_create_bw>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x50,%rsp
  mov    %rdi,-0x38(%rbp)
  mov    %esi,-0x3c(%rbp)
  mov    %edx,-0x40(%rbp)
  mov    %rcx,-0x48(%rbp)
  movl   $0x0,-0x28(%rbp)
  mov    -0x3c(%rbp),%eax
  imul   -0x40(%rbp),%eax
  mov    %eax,%edx
  mov    %edx,%eax
  add    %eax,%eax
  add    %edx,%eax
  add    $0x36,%eax
  mov    %eax,-0x1c(%rbp)
  mov    -0x1c(%rbp),%eax
  mov    %eax,%edi
  call   <malloc@plt>
  mov    %rax,-0x10(%rbp)
  mov    -0x10(%rbp),%rcx
  mov    -0x40(%rbp),%edx
  mov    -0x3c(%rbp),%esi
  mov    -0x38(%rbp),%rax
  mov    %rax,%rdi
  call   <create_header@plt>
  mov    %eax,%edx
  mov    -0x28(%rbp),%eax
  add    %edx,%eax
  mov    %eax,-0x28(%rbp)
  mov    -0x40(%rbp),%eax
  sub    $0x1,%eax
  mov    %eax,-0x24(%rbp)
  jmp    L15
L68:
  movl   $0x0,-0x20(%rbp)
  jmp    L27
L61:
  mov    -0x3c(%rbp),%eax
  lea    0x7(%rax),%edx
  test   %eax,%eax
  cmovs  %edx,%eax
  sar    $0x3,%eax
  imul   -0x24(%rbp),%eax
  mov    %eax,%ecx
  mov    -0x20(%rbp),%eax
  lea    0x7(%rax),%edx
  test   %eax,%eax
  cmovs  %edx,%eax
  sar    $0x3,%eax
  add    %ecx,%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x48(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%eax
  mov    %eax,-0x18(%rbp)
  mov    -0x20(%rbp),%eax
  and    $0x7,%eax
  mov    $0x1,%edx
  mov    %eax,%ecx
  shl    %cl,%edx
  mov    %edx,%eax
  mov    %eax,-0x14(%rbp)
  mov    -0x18(%rbp),%eax
  and    -0x14(%rbp),%eax
  test   %eax,%eax
  je     L41
  mov    -0x28(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x10(%rbp),%rax
  add    %rdx,%rax
  movl   $0x0,(%rax)
  mov    -0x28(%rbp),%eax
  cltq
  add    $0x1,%rax
  lea    0x0(,%rax,4),%rdx
  mov    -0x10(%rbp),%rax
  add    %rdx,%rax
  movl   $0x0,(%rax)
  mov    -0x28(%rbp),%eax
  cltq
  add    $0x2,%rax
  lea    0x0(,%rax,4),%rdx
  mov    -0x10(%rbp),%rax
  add    %rdx,%rax
  movl   $0x0,(%rax)
  jmp    L76
L41:
  mov    -0x28(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x10(%rbp),%rax
  add    %rdx,%rax
  movl   $0xff,(%rax)
  mov    -0x28(%rbp),%eax
  cltq
  add    $0x1,%rax
  lea    0x0(,%rax,4),%rdx
  mov    -0x10(%rbp),%rax
  add    %rdx,%rax
  movl   $0xff,(%rax)
  mov    -0x28(%rbp),%eax
  cltq
  add    $0x2,%rax
  lea    0x0(,%rax,4),%rdx
  mov    -0x10(%rbp),%rax
  add    %rdx,%rax
  movl   $0xff,(%rax)
L76:
  addl   $0x3,-0x28(%rbp)
  addl   $0x1,-0x20(%rbp)
L27:
  mov    -0x20(%rbp),%eax
  cmp    -0x3c(%rbp),%eax
  jl     L61
  mov    -0x3c(%rbp),%eax
  and    $0x3,%eax
  test   %eax,%eax
  je     L4
  mov    -0x3c(%rbp),%eax
  cltd
  shr    $0x1e,%edx
  add    %edx,%eax
  and    $0x3,%eax
  sub    %edx,%eax
  mov    %eax,%edx
  mov    $0x4,%eax
  sub    %edx,%eax
  jmp    L30
L4:
  mov    $0x0,%eax
L30:
  add    %eax,-0x28(%rbp)
  subl   $0x1,-0x24(%rbp)
L15:
  cmpl   $0x0,-0x24(%rbp)
  jns    L68
  mov    -0x38(%rbp),%rax
  lea    D1(%rip),%rdx
  mov    %rdx,%rsi
  mov    %rax,%rdi
  call   <fopen@plt>
  mov    %rax,-0x8(%rbp)
  mov    -0x8(%rbp),%rcx
  mov    -0x1c(%rbp),%edx
  mov    -0x10(%rbp),%rax
  mov    $0x1,%esi
  mov    %rax,%rdi
  call   <fwrite@plt>
  mov    -0x8(%rbp),%rax
  mov    %rax,%rdi
  call   <fclose@plt>
  mov    -0x10(%rbp),%rax
  mov    %rax,%rdi
  call   <free@plt>
  mov    $0x0,%eax
  leave
  ret
```

tool_calls: name: retrieve_data
arguments: data_tag: D1
datatype: string

tool: D1: w

assistant: ```c
int bmp_create_bw(char *filename, uint32_t w, uint32_t h, uint8_t *data) {
  FILE *f;
  int index = 0;
  uint32_t filesize = 14 + 40 + w * h * 3;
  uint8_t *filedata = (uint8_t *)malloc(filesize);
  index += create_header(filename, w, h, filedata);
  for (int i = h - 1; i >= 0; i--) {
    for (int j = 0; j < w; j++) {
      uint8_t byte = data[i * (w / 8) + (j / 8)];
      uint8_t mask = 1 << (j % 8);
      if ((byte & mask) != 0) {
        filedata[index + 0] = 0x00;
        filedata[index + 1] = 0x00;
        filedata[index + 2] = 0x00;
      } else {
        filedata[index + 0] = 0xFF;
        filedata[index + 1] = 0xFF;
        filedata[index + 2] = 0xFF;
      }
      index += 3;
    }
    index += (w % 4 != 0) ? 4 - (w % 4) : 0;
  }
  f = fopen(filename, "w");
  fwrite(filedata, 1, filesize, f);
  fclose(f);
  free(filedata);
  return 0;
}
```