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

```asm
<get_best_register_a_value_for_crazy>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x38,%rsp
  mov    %edi,0x28(%rsp)
  mov    %esi,0x2c(%rsp)
  mov    %edx,%ebp
  mov    %rcx,0x20(%rsp)
  mov    %r8,%r13
  mov    D2(%rip),%rax
  mov    (%rax),%eax
  mov    %eax,0xc(%rsp)
  call   <get_register_a_value_for_crazy@plt>
  mov    %eax,0x1c(%rsp)
  cmp    $0xffff,%eax
  je     L87
  test   %eax,%eax
  je     L113
  cmp    $0x7354,%eax
  je     L113
  sub    $0xe6a6,%eax
  mov    $0x7353,%r15d
  mov    $0x0,%r14d
  cmp    $0x2,%eax
  jbe    L113
  mov    %r13,0x10(%rsp)
  mov    %r14d,%r13d
  jmp    L166
L113:
  mov    0x20(%rsp),%rax
  test   %rax,%rax
  je     L160
  movl   $0xa,(%rax)
L160:
  test   %r13,%r13
  je     L87
  movl   $0x0,0x0(%r13)
L87:
  mov    0x1c(%rsp),%eax
  add    $0x38,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L170:
  cmp    %esi,0xc(%rsp)
  jle    L133
  cmpq   $0x0,0x10(%rsp)
  je     L133
  mov    0x20(%rsp),%rbx
  test   %rbx,%rbx
  je     L173
  mov    %eax,(%rbx)
L173:
  mov    0x10(%rsp),%rax
  movl   $0x1,(%rax)
  mov    %esi,0xc(%rsp)
  mov    %r12d,0x1c(%rsp)
L133:
  mov    %ebp,%edi
  call   <rotate_right@plt>
  mov    %eax,%ebp
  test   %r15d,%r15d
  jg     L154
L25:
  add    $0x1,%r13d
  cmp    $0xa,%r13d
  je     L87
L166:
  mov    %ebp,%edx
  mov    0x2c(%rsp),%esi
  mov    0x28(%rsp),%edi
  call   <get_register_a_value_for_crazy@plt>
  mov    %eax,%r12d
  mov    $0x7354,%edx
  mov    %ebp,%esi
  mov    %eax,%edi
  call   <count_different_trits@plt>
  mov    %eax,%r14d
  mov    %ebp,%esi
  mov    $0xe6a8,%edi
  call   <crazy@plt>
  mov    %eax,%esi
  mov    $0x7354,%edx
  mov    %r12d,%edi
  call   <count_different_trits@plt>
  mov    %eax,0x18(%rsp)
  mov    %r15d,%edx
  mov    %ebp,%esi
  mov    %r12d,%edi
  call   <count_different_trits@plt>
  mov    %eax,%ebx
  mov    %ebp,%esi
  mov    $0xe6a8,%edi
  call   <crazy@plt>
  mov    %eax,%esi
  mov    %r15d,%edx
  mov    %r12d,%edi
  call   <count_different_trits@plt>
  test   %ebx,%ebx
  mov    $0xa,%edi
  cmovne %edi,%ebx
  add    %r13d,%ebx
  lea    (%r14,%r14,8),%edx
  lea    (%rbx,%rbx,2),%ecx
  test   %eax,%eax
  cmovne %edi,%eax
  add    %r13d,%eax
  mov    0x18(%rsp),%esi
  lea    (%rsi,%rsi,8),%edi
  lea    (%rax,%rax,2),%esi
  lea    0x2(%rdi,%rsi,1),%esi
  add    %ecx,%edx
  mov    $0x6,%ecx
  cmove  %ecx,%edx
  cmp    0xc(%rsp),%edx
  jge    L170
  mov    0x20(%rsp),%rcx
  test   %rcx,%rcx
  je     L117
  mov    %ebx,(%rcx)
L117:
  mov    0x10(%rsp),%rbx
  test   %rbx,%rbx
  je     L130
  movl   $0x0,(%rbx)
  mov    %edx,0xc(%rsp)
  mov    %r12d,0x1c(%rsp)
  jmp    L170
L130:
  mov    %edx,0xc(%rsp)
  mov    %r12d,0x1c(%rsp)
  jmp    L133
L154:
  mov    %r15d,%edi
  call   <rotate_right@plt>
  lea    -0x1(%rax),%r15d
  jmp    L25
```

assistant: ```c
unsigned int get_best_register_a_value_for_crazy(unsigned int source, unsigned int destination, unsigned int current_register_a_value, int *rotations, int *crazy_C2_first) {
  unsigned int value;
  int i;
  int not_modifiable_mask = 29524 - 1;
  int min_costs = INT_MAX;
  if ((value = get_register_a_value_for_crazy(source, destination, current_register_a_value)) == 0xFFFF) {
    return 0xFFFF;
  }
  if (value == 0 || value == 29524 || value == 59048 || value == 59048 - 1 || value == 59048 - 2) {
    if (rotations != 0)
      *rotations = 10;
    if (crazy_C2_first != 0)
      *crazy_C2_first = 0;
    return value;
  }
  for (i = 0; i < 10; i++) {
    unsigned int constant = get_register_a_value_for_crazy(source, destination, current_register_a_value);
    int diff = count_different_trits(constant, current_register_a_value, 29524);
    int diff2 = count_different_trits(constant, crazy(59048, current_register_a_value), 29524);
    int diff_needs_wrap = count_different_trits(constant, current_register_a_value, not_modifiable_mask);
    int diff2_needs_wrap = count_different_trits(constant, crazy(59048, current_register_a_value), not_modifiable_mask);
    int rots_diff = i + (diff_needs_wrap == 0 ? 0 : 10);
    int costs_diff = diff * 9 + rots_diff * 3;
    int rots_diff2 = i + (diff2_needs_wrap == 0 ? 0 : 10);
    int costs_diff2 = diff2 * 9 + rots_diff2 * 3 + 2;
    if (costs_diff == 0) {
      costs_diff = 6;
    }
    if (costs_diff < min_costs) {
      min_costs = costs_diff;
      if (rotations != 0)
        *rotations = rots_diff;
      value = constant;
      if (crazy_C2_first != 0)
        *crazy_C2_first = 0;
    }
    if (costs_diff2 < min_costs && crazy_C2_first != 0) {
      min_costs = costs_diff2;
      if (rotations != 0)
        *rotations = rots_diff2;
      value = constant;
      *crazy_C2_first = 1;
    }
    current_register_a_value = rotate_right(current_register_a_value);
    if (not_modifiable_mask > 0)
      not_modifiable_mask = rotate_right(not_modifiable_mask) - 1;
  }
  return value;
}
```