user: Please show me the C implementation that matches the assembly code listed below:

```asm
<test_dct>:
  endbr64
  push   %r14
  lea    D106(%rip),%r14
  push   %r13
  push   %r12
  mov    %edi,%r12d
  push   %rbp
  mov    %esi,%ebp
  mov    %r14,%rsi
  push   %rbx
  mov    %ebp,%edi
  call   <print_category@plt>
  cmp    $0x1,%ebp
  je     L2
  lea    D59(%rip),%rdi
  lea    D16(%rip),%r13
  call   <printf@plt>
  xor    %eax,%eax
  call   <print_threads@plt>
  mov    %r13,%rdi
  call   <printf@plt>
  mov    $0x1,%ecx
  mov    %r12d,%edx
  mov    %r14,%rsi
  mov    %ebp,%edi
  call   <def_region@plt>
  mov    %r12d,%esi
  mov    $0x1,%edx
  mov    %ebp,%edi
  mov    %eax,%ebx
  call   <enter_stacks@plt>
  lea    D72(%rip),%rdi
  or     %eax,%ebx
  call   <printf@plt>
  xor    %eax,%eax
  call   <print_threads@plt>
  mov    %r13,%rdi
  call   <printf@plt>
  mov    %r12d,%esi
  mov    $0x1,%edx
  mov    %ebp,%edi
  call   <exit_stacks@plt>
  lea    D34(%rip),%rdi
  or     %ebx,%eax
  mov    %eax,%r12d
  call   <printf@plt>
  xor    %eax,%eax
  call   <print_threads@plt>
  mov    %r13,%rdi
  call   <printf@plt>
  pop    %rbx
  mov    %r12d,%eax
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  ret
  nopl   0x0(%rax,%rax,1)
L2:
  lea    D61(%rip),%r13
  lea    D16(%rip),%rbp
  mov    %r13,%rdi
  call   <printf@plt>
  lea    D59(%rip),%rdi
  call   <printf@plt>
  xor    %eax,%eax
  call   <print_threads@plt>
  mov    %rbp,%rdi
  call   <printf@plt>
  mov    $0x1,%ecx
  mov    %r12d,%edx
  mov    %r14,%rsi
  mov    $0x1,%edi
  call   <def_region@plt>
  mov    %r12d,%esi
  mov    $0x1,%edx
  mov    $0x1,%edi
  mov    %eax,%ebx
  call   <enter_stacks@plt>
  mov    %r13,%rdi
  or     %eax,%ebx
  call   <printf@plt>
  lea    D72(%rip),%rdi
  call   <printf@plt>
  xor    %eax,%eax
  call   <print_threads@plt>
  mov    %rbp,%rdi
  call   <printf@plt>
  mov    %r12d,%esi
  mov    $0x1,%edx
  mov    $0x1,%edi
  call   <exit_stacks@plt>
  mov    %r13,%rdi
  or     %ebx,%eax
  mov    %eax,%r12d
  call   <printf@plt>
  lea    D34(%rip),%rdi
  call   <printf@plt>
  xor    %eax,%eax
  call   <print_threads@plt>
  mov    %rbp,%rdi
  call   <printf@plt>
  lea    D21(%rip),%rdi
  call   <printf@plt>
  pop    %rbx
  mov    %r12d,%eax
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  ret
```

tool_calls: name: read_data
arguments: label: D106
data_type: string
name: read_data
arguments: label: D59
data_type: string
name: read_data
arguments: label: D16
data_type: string
name: read_data
arguments: label: D72
data_type: string
name: read_data
arguments: label: D34
data_type: string
name: read_data
arguments: label: D61
data_type: string
name: read_data
arguments: label: D21
data_type: string

tool: D106: dct

tool: D59: init_dct_threads_before=

tool: D16: 


tool: D72: bin_dct_threads_before=

tool: D34: bin_dct_threads_after=

tool: D61: Threads:


tool: D21: *********


assistant: ```c
int test_dct(uint64_t bid, int message) {
  char *category = "dct";
  int error = 0;
  uint32_t rid = 1;
  print_category(message, category);
  if (message == 1)
    printf("Threads:\n");
  printf("init_dct_threads_before=");
  print_threads();
  printf("\n");
  error |= def_region(message, category, bid, rid);
  error |= enter_stacks(message, bid, rid);
  if (message == 1)
    printf("Threads:\n");
  printf("bin_dct_threads_before=");
  print_threads();
  printf("\n");
  error |= exit_stacks(message, bid, rid);
  if (message == 1)
    printf("Threads:\n");
  printf("bin_dct_threads_after=");
  print_threads();
  printf("\n");
  if (message == 1)
    printf("*********\n");
  return error;
}
```