user: 请显示与下面列出的汇编代码相匹配的C语言实现：

```asm
<print_day_header>:
  endbr64
  mov    %rdi,%rcx
  mov    $0x4c8,%edx
  mov    $0x1,%esi
  lea    D1(%rip),%rdi
  jmp    1050 <fwrite@plt>
```

tool_calls: name: unpack_data
arguments: label: D1
datatype: string

tool: D1: ScaleY ScaleX Min dup scale
%----------------------------------------
% First the gray background area
newpath
0 slw
 0.5  inch  3.5 inch m
 0          7.0 inch rl
 7.5  inch  0        rl
 0         -1   inch rl
-3    inch  0        rl
 0         -6   inch rl
-0.75 inch  0        rl
 0          6   inch rl
-3    inch  0        rl
 0         -6   inch rl
closepath 0.85 setgray fill stroke
%----------------------------------------
% Next highlighting lines round title
0 setgray
1 slw newpath 0.5 inch 10.5    inch m 7.5 inch 0 rl stroke
      newpath 0.5 inch  9.5625 inch m 7.5 inch 0 rl stroke
2 slw newpath 0.5 inch  9.5    inch m 7.5 inch 0 rl stroke

/Times-Roman-ISOLatin1 findfont 14 scalefont setfont
0 slw
0 1 11 {
       /I edef
       %----------------------------------------
       % The hours
       0.5 inch 9.15 inch I 0.5 inch mul sub m
       I 10 lt { (0) show } if I nstr cvs show (:00) show
       4.25 inch 9.15 inch I 0.5 inch mul sub m
       I 12 add nstr cvs show (:00) show
       %----------------------------------------
       % The horizontal lines between hours
       1.25 inch 9 inch I 0.5 inch mul sub m 3 inch 0 rl
       5    inch 9 inch I 0.5 inch mul sub m 3 inch 0 rl
} for
stroke


assistant: ```c
void print_day_header(FILE *f) {
  const char *day_header = "ScaleY ScaleX Min dup scale\n"
                           "%----------------------------------------\n"
                           "% First the gray background area\n"
                           "newpath\n"
                           "0 slw\n"
                           " 0.5  inch  3.5 inch m\n"
                           " 0          7.0 inch rl\n"
                           " 7.5  inch  0        rl\n"
                           " 0         -1   inch rl\n"
                           "-3    inch  0        rl\n"
                           " 0         -6   inch rl\n"
                           "-0.75 inch  0        rl\n"
                           " 0          6   inch rl\n"
                           "-3    inch  0        rl\n"
                           " 0         -6   inch rl\n"
                           "closepath 0.85 setgray fill stroke\n"
                           "%----------------------------------------\n"
                           "% Next highlighting lines round title\n"
                           "0 setgray\n"
                           "1 slw newpath 0.5 inch 10.5    inch m 7.5 inch 0 rl stroke\n"
                           "      newpath 0.5 inch  9.5625 inch m 7.5 inch 0 rl stroke\n"
                           "2 slw newpath 0.5 inch  9.5    inch m 7.5 inch 0 rl stroke\n\n"
                           "/Times-Roman-ISOLatin1 findfont 14 scalefont setfont\n"
                           "0 slw\n"
                           "0 1 11 {\n"
                           "       /I edef\n"
                           "       %----------------------------------------\n"
                           "       % The hours\n"
                           "       0.5 inch 9.15 inch I 0.5 inch mul sub m\n"
                           "       I 10 lt { (0) show } if I nstr cvs show (:00) show\n"
                           "       4.25 inch 9.15 inch I 0.5 inch mul sub m\n"
                           "       I 12 add nstr cvs show (:00) show\n"
                           "       %----------------------------------------\n"
                           "       % The horizontal lines between hours\n"
                           "       1.25 inch 9 inch I 0.5 inch mul sub m 3 inch 0 rl\n"
                           "       5    inch 9 inch I 0.5 inch mul sub m 3 inch 0 rl\n"
                           "} for\n"
                           "stroke\n";
  fputs(day_header, f);
}
```