user: 请显示与下面列出的汇编代码相匹配的C语言实现：

```asm
<write_mg_info>:
  endbr64
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x8,%rsp
  mov    %rdi,%rbx
  lea    -0x41(%rsi),%eax
  cmp    $0x16,%al
  ja     L46
  movzbl %al,%eax
  lea    D34(%rip),%rdx
  movslq (%rdx,%rax,4),%rax
  add    %rdx,%rax
  notrack jmp *%rax
  mov    $0x28,%r13d
  mov    $0x40,%r12d
  jmp    L2
  mov    $0x4,%r13d
  mov    $0x100,%r12d
L2:
  mov    %r12d,%edi
  call   <ilog2@plt>
  mov    %eax,%ebp
  mov    %r12d,%edx
  lea    D68(%rip),%rsi
  mov    %rbx,%rdi
  call   <fprintf@plt>
  mov    %r12d,%edx
  lea    D119(%rip),%rsi
  mov    %rbx,%rdi
  call   <fprintf@plt>
  mov    %r12d,%edx
  lea    D91(%rip),%rsi
  mov    %rbx,%rdi
  call   <fprintf@plt>
  mov    %r13d,%edx
  lea    D16(%rip),%rsi
  mov    %rbx,%rdi
  call   <fprintf@plt>
  mov    %ebp,%edx
  lea    D20(%rip),%rsi
  mov    %rbx,%rdi
  call   <fprintf@plt>
  mov    %ebp,%edx
  lea    D66(%rip),%rsi
  mov    %rbx,%rdi
  call   <fprintf@plt>
  mov    $0x0,%edx
  lea    D94(%rip),%rsi
  mov    %rbx,%rdi
  call   <fprintf@plt>
  mov    %ebp,%edx
  lea    D61(%rip),%rsi
  mov    %rbx,%rdi
  call   <fprintf@plt>
  mov    %ebp,%edx
  lea    D106(%rip),%rsi
  mov    %rbx,%rdi
  call   <fprintf@plt>
  mov    %ebp,%edx
  lea    D42(%rip),%rsi
  mov    %rbx,%rdi
  call   <fprintf@plt>
  add    $0x8,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
  mov    $0x14,%r13d
  mov    $0x100,%r12d
  jmp    L2
  mov    $0x14,%r13d
  mov    $0x200,%r12d
  jmp    L2
L46:
  movsbl %sil,%esi
  lea    D25(%rip),%rdi
  call   <printf@plt>
  mov    $0x1,%edi
  call   <exit@plt>
  jmp    L2
  mov    $0x4,%r13d
  mov    $0x20,%r12d
  jmp    L2
```

tool_calls: name: retrieve_data
arguments: data_label: D68
type: string
name: retrieve_data
arguments: data_label: D119
type: string
name: retrieve_data
arguments: data_label: D91
type: string
name: retrieve_data
arguments: data_label: D16
type: string
name: retrieve_data
arguments: data_label: D20
type: string
name: retrieve_data
arguments: data_label: D66
type: string
name: retrieve_data
arguments: data_label: D94
type: string
name: retrieve_data
arguments: data_label: D61
type: string
name: retrieve_data
arguments: data_label: D106
type: string
name: retrieve_data
arguments: data_label: D42
type: string
name: retrieve_data
arguments: data_label: D25
type: string

tool: D68: #define	NX_DEFAULT	%d


tool: D119: #define	NY_DEFAULT	%d


tool: D91: #define	NZ_DEFAULT	%d


tool: D16: #define	NIT_DEFAULT	%d


tool: D20: #define	LM	%d


tool: D66: #define	LT_DEFAULT	%d


tool: D94: #define	DEBUG_DEFAULT	%d


tool: D61: #define	NDIM1	%d


tool: D106: #define	NDIM2	%d


tool: D42: #define	NDIM3	%d


tool: D25: setparams: Internal error: invalid class type %c


assistant: ```c
void write_mg_info(FILE *fp, char class) {
  int problem_size, nit, log2_size, lt_default, lm;
  int ndim1, ndim2, ndim3;
  if (class == 'S') {
    problem_size = 32;
    nit = 4;
  } else if (class == 'W') {
    problem_size = 64;
    nit = 40;
  } else if (class == 'A') {
    problem_size = 256;
    nit = 4;
  } else if (class == 'B') {
    problem_size = 256;
    nit = 20;
  } else if (class == 'C') {
    problem_size = 512;
    nit = 20;
  } else {
    printf("setparams: Internal error: invalid class type %c\n", class);
    exit(1);
  }
  log2_size = ilog2(problem_size);
  lt_default = log2_size;
  lm = log2_size;
  ndim1 = lm;
  ndim3 = log2_size;
  ndim2 = log2_size;
  fprintf(fp, "#define\tNX_DEFAULT\t%d\n", problem_size);
  fprintf(fp, "#define\tNY_DEFAULT\t%d\n", problem_size);
  fprintf(fp, "#define\tNZ_DEFAULT\t%d\n", problem_size);
  fprintf(fp, "#define\tNIT_DEFAULT\t%d\n", nit);
  fprintf(fp, "#define\tLM\t%d\n", lm);
  fprintf(fp, "#define\tLT_DEFAULT\t%d\n", lt_default);
  fprintf(fp, "#define\tDEBUG_DEFAULT\t%d\n", 0);
  fprintf(fp, "#define\tNDIM1\t%d\n", ndim1);
  fprintf(fp, "#define\tNDIM2\t%d\n", ndim2);
  fprintf(fp, "#define\tNDIM3\t%d\n", ndim3);
}
```