ylfeng/ReF-Decompile-dataset huggingface dataset:
user: 请显示与下面列出的汇编代码相匹配的C语言实现:

```asm
<fixenv>:
  endbr64
  push   %r13
  push   %r12
  mov    %rdi,%r12
  push   %rbp
  call   <getenv@plt>
  test   %rax,%rax
  je     L16
  cmpb   $0x0,(%rax)
  mov    %rax,%rbp
  jne    L2
L16:
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
  nopl   0x0(%rax)
L2:
  mov    %rax,%rdi
  call   <cygwin32_posix_to_win32_path_list_buf_size@plt>
  mov    %eax,%edi
  call   <malloc@plt>
  mov    %rbp,%rdi
  mov    %rax,%r13
  mov    %rax,%rsi
  call   <cygwin32_conv_to_win32_path@plt>
  mov    %r12,%rdi
  mov    %r13,%rsi
  mov    $0x1,%edx
  call   <setenv@plt>
  pop    %rbp
  mov    %r13,%rdi
  pop    %r12
  pop    %r13
  jmp    10b0 <free@plt>
```

assistant: ```c
void fixenv(const char *envname) {
  char *winval;
  int newlen;
  char *env;
  env = getenv(envname);
  if (env && env[0] != '\0') {
    int len = cygwin32_posix_to_win32_path_list_buf_size(env);
    winval = malloc(len);
    cygwin32_conv_to_win32_path(env, winval);
    setenv(envname, winval, 1);
    free(winval);
  }
}
```
user: What is the c source code of the assembly code below?

```asm
<fixenv>:
  endbr64
  push   %r13
  push   %r12
  mov    %rdi,%r12
  push   %rbp
  call   <getenv@plt>
  test   %rax,%rax
  je     L3
  cmpb   $0x0,(%rax)
  mov    %rax,%rbp
  jne    L18
L3:
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
  nopl   0x0(%rax)
L18:
  mov    %rax,%rdi
  call   <cygwin32_posix_to_win32_path_list_buf_size@plt>
  mov    %eax,%edi
  call   <malloc@plt>
  mov    %rbp,%rdi
  mov    %rax,%r13
  mov    %rax,%rsi
  call   <cygwin32_conv_to_win32_path@plt>
  mov    %r12,%rdi
  mov    %r13,%rsi
  mov    $0x1,%edx
  call   <setenv@plt>
  pop    %rbp
  mov    %r13,%rdi
  pop    %r12
  pop    %r13
  jmp    10b0 <free@plt>
```

assistant: ```c
void fixenv(const char *envname) {
  char *winval;
  int newlen;
  char *env;
  env = getenv(envname);
  if (env && env[0] != '\0') {
    int len = cygwin32_posix_to_win32_path_list_buf_size(env);
    winval = malloc(len);
    cygwin32_conv_to_win32_path(env, winval);
    setenv(envname, winval, 1);
    free(winval);
  }
}
```
user: Translate the below assembly code into C programming language:

```asm
<cm_read_packed_date>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x20,%rsp
  mov    %rdi,-0x18(%rbp)
  mov    -0x18(%rbp),%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  sub    $0x49,%eax
  imul   $0x64,%eax,%eax
  add    $0x708,%eax
  mov    %eax,-0x4(%rbp)
  mov    -0x18(%rbp),%rax
  add    $0x1,%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  lea    -0x30(%rax),%edx
  mov    %edx,%eax
  shl    $0x2,%eax
  add    %edx,%eax
  add    %eax,%eax
  add    %eax,-0x4(%rbp)
  mov    -0x18(%rbp),%rax
  add    $0x2,%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  sub    $0x30,%eax
  add    %eax,-0x4(%rbp)
  movl   $0xffffffff,-0xc(%rbp)
  mov    -0x18(%rbp),%rax
  add    $0x3,%rax
  movzbl (%rax),%eax
  cmp    $0x2f,%al
  jle    L44
  mov    -0x18(%rbp),%rax
  add    $0x3,%rax
  movzbl (%rax),%eax
  cmp    $0x39,%al
  jg     L44
  mov    -0x18(%rbp),%rax
  add    $0x3,%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  sub    $0x30,%eax
  mov    %eax,-0xc(%rbp)
  jmp    L15
L44:
  mov    -0x18(%rbp),%rax
  add    $0x3,%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  sub    $0x37,%eax
  mov    %eax,-0xc(%rbp)
L15:
  movl   $0xffffffff,-0x8(%rbp)
  mov    -0x18(%rbp),%rax
  add    $0x4,%rax
  movzbl (%rax),%eax
  cmp    $0x2f,%al
  jle    L33
  mov    -0x18(%rbp),%rax
  add    $0x4,%rax
  movzbl (%rax),%eax
  cmp    $0x39,%al
  jg     L33
  mov    -0x18(%rbp),%rax
  add    $0x4,%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  sub    $0x30,%eax
  mov    %eax,-0x8(%rbp)
  jmp    L57
L33:
  mov    -0x18(%rbp),%rax
  add    $0x4,%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  sub    $0x37,%eax
  mov    %eax,-0x8(%rbp)
L57:
  mov    -0x8(%rbp),%esi
  mov    -0xc(%rbp),%ecx
  mov    -0x4(%rbp),%edx
  mov    -0x18(%rbp),%rax
  mov    %esi,%r8d
  mov    %rax,%rsi
  lea    D7(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
  nop
  leave
  ret
```

tool_calls: name: disassemble_data
arguments: label: D7
data_type: string

tool: D7: %s = %04d-%02d-%02d


assistant: ```c
void cm_read_packed_date(const char *date) {
  int year = (date[0] - 'I') * 100 + 1800;
  year += 10 * (date[1] - '0');
  year += date[2] - '0';
  int month = -1;
  if ('0' <= date[3] && date[3] <= '9') {
    month = date[3] - '0';
  } else {
    month = date[3] - 'A' + 10;
  }
  int day = -1;
  if ('0' <= date[4] && date[4] <= '9') {
    day = date[4] - '0';
  } else {
    day = date[4] - 'A' + 10;
  }
  printf("%s = %04d-%02d-%02d\n", date, year, month, day);
}
```
user: 这段汇编代码用C语言表示是什么样的？

```asm
<cm_read_packed_date>:
  endbr64
  sub    $0x8,%rsp
  mov    %rdi,%rsi
  movsbl (%rdi),%eax
  sub    $0x49,%eax
  imul   $0x64,%eax,%eax
  movsbl 0x1(%rdi),%edx
  lea    -0xf0(%rdx,%rdx,4),%edx
  lea    0x708(%rax,%rdx,2),%edx
  movsbl 0x2(%rdi),%eax
  lea    -0x30(%rdx,%rax,1),%edx
  movzbl 0x3(%rdi),%ecx
  lea    -0x30(%rcx),%eax
  cmp    $0x9,%al
  ja     L15
  movsbl %cl,%ecx
  sub    $0x30,%ecx
L19:
  movzbl 0x4(%rsi),%r8d
  lea    -0x30(%r8),%eax
  cmp    $0x9,%al
  ja     L8
  movsbl %r8b,%r8d
  sub    $0x30,%r8d
L31:
  lea    D1(%rip),%rdi
  call   <printf@plt>
  add    $0x8,%rsp
  ret
L15:
  movsbl %cl,%ecx
  sub    $0x37,%ecx
  jmp    L19
L8:
  movsbl %r8b,%r8d
  sub    $0x37,%r8d
  jmp    L31
```

tool_calls: name: disassemble_data
arguments: data_tag: D1
type_infered: string

tool: D1: %s = %04d-%02d-%02d


assistant: ```c
void cm_read_packed_date(const char *date) {
  int year = (date[0] - 'I') * 100 + 1800;
  year += 10 * (date[1] - '0');
  year += date[2] - '0';
  int month = -1;
  if ('0' <= date[3] && date[3] <= '9') {
    month = date[3] - '0';
  } else {
    month = date[3] - 'A' + 10;
  }
  int day = -1;
  if ('0' <= date[4] && date[4] <= '9') {
    day = date[4] - '0';
  } else {
    day = date[4] - 'A' + 10;
  }
  printf("%s = %04d-%02d-%02d\n", date, year, month, day);
}
```
user: 提供的汇编代码用C语言表示会是什么样子:

```asm
<cm_read_packed_date>:
  endbr64
  movsbl (%rdi),%eax
  movsbl 0x1(%rdi),%edx
  mov    %rdi,%rsi
  movsbl 0x3(%rdi),%ecx
  sub    $0x49,%eax
  lea    -0xf0(%rdx,%rdx,4),%edx
  imul   $0x64,%eax,%eax
  lea    0x708(%rax,%rdx,2),%edx
  movsbl 0x2(%rdi),%eax
  lea    -0x30(%rdx,%rax,1),%r9d
  lea    -0x30(%rcx),%eax
  sub    $0x37,%ecx
  movsbl %al,%edx
  cmp    $0x9,%al
  movsbl 0x4(%rdi),%eax
  lea    D0(%rip),%rdi
  cmovbe %edx,%ecx
  lea    -0x30(%rax),%edx
  sub    $0x37,%eax
  movsbl %dl,%r8d
  cmp    $0x9,%dl
  mov    %r9d,%edx
  cmova  %eax,%r8d
  jmp    1050 <printf@plt>
```

tool_calls: name: unpack_data
arguments: tag: D0
type: string

tool: D0: %s = %04d-%02d-%02d


assistant: ```c
void cm_read_packed_date(const char *date) {
  int year = (date[0] - 'I') * 100 + 1800;
  year += 10 * (date[1] - '0');
  year += date[2] - '0';
  int month = -1;
  if ('0' <= date[3] && date[3] <= '9') {
    month = date[3] - '0';
  } else {
    month = date[3] - 'A' + 10;
  }
  int day = -1;
  if ('0' <= date[4] && date[4] <= '9') {
    day = date[4] - '0';
  } else {
    day = date[4] - 'A' + 10;
  }
  printf("%s = %04d-%02d-%02d\n", date, year, month, day);
}
```
user: 提供的汇编代码用C语言表示会是什么样子:

```asm
<cm_read_packed_date>:
  endbr64
  movsbl (%rdi),%eax
  movsbl 0x1(%rdi),%edx
  mov    %rdi,%rsi
  movsbl 0x3(%rdi),%ecx
  sub    $0x49,%eax
  lea    -0xf0(%rdx,%rdx,4),%edx
  imul   $0x64,%eax,%eax
  lea    0x708(%rax,%rdx,2),%edx
  movsbl 0x2(%rdi),%eax
  lea    -0x30(%rdx,%rax,1),%r9d
  lea    -0x30(%rcx),%eax
  sub    $0x37,%ecx
  movsbl %al,%edx
  cmp    $0x9,%al
  movsbl 0x4(%rdi),%eax
  lea    D2(%rip),%rdi
  cmovbe %edx,%ecx
  lea    -0x30(%rax),%edx
  sub    $0x37,%eax
  movsbl %dl,%r8d
  cmp    $0x9,%dl
  mov    %r9d,%edx
  cmova  %eax,%r8d
  jmp    1050 <printf@plt>
```

tool_calls: name: extract_symbolic_data
arguments: tag: D2
type: string

tool: D2: %s = %04d-%02d-%02d


assistant: ```c
void cm_read_packed_date(const char *date) {
  int year = (date[0] - 'I') * 100 + 1800;
  year += 10 * (date[1] - '0');
  year += date[2] - '0';
  int month = -1;
  if ('0' <= date[3] && date[3] <= '9') {
    month = date[3] - '0';
  } else {
    month = date[3] - 'A' + 10;
  }
  int day = -1;
  if ('0' <= date[4] && date[4] <= '9') {
    day = date[4] - '0';
  } else {
    day = date[4] - 'A' + 10;
  }
  printf("%s = %04d-%02d-%02d\n", date, year, month, day);
}
```
user: 请从给定的汇编指令推导出C源代码:

```asm
<main>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x70,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
  lea    D80(%rip),%rax
  mov    %rax,-0x60(%rbp)
  lea    D97(%rip),%rax
  mov    %rax,-0x58(%rbp)
  lea    D104(%rip),%rax
  mov    %rax,-0x50(%rbp)
  lea    D85(%rip),%rax
  mov    %rax,-0x48(%rbp)
  lea    D103(%rip),%rax
  mov    %rax,-0x40(%rbp)
  lea    D86(%rip),%rax
  mov    %rax,-0x38(%rbp)
  lea    D6(%rip),%rax
  mov    %rax,-0x30(%rbp)
  lea    D56(%rip),%rax
  mov    %rax,-0x28(%rbp)
  lea    D18(%rip),%rax
  mov    %rax,-0x20(%rbp)
  lea    D34(%rip),%rax
  mov    %rax,-0x18(%rbp)
  lea    D12(%rip),%rax
  mov    %rax,-0x10(%rbp)
  mov    -0x30(%rbp),%rax
  mov    %rax,%rdi
  call   <puts@plt>
  mov    -0x28(%rbp),%rax
  mov    %rax,%rdi
  call   <print_reverse@plt>
  mov    -0x50(%rbp),%rax
  mov    %rax,-0x68(%rbp)
  mov    -0x20(%rbp),%rax
  mov    %rax,-0x50(%rbp)
  mov    -0x68(%rbp),%rax
  mov    %rax,-0x20(%rbp)
  mov    -0x20(%rbp),%rax
  mov    %rax,%rdi
  call   <puts@plt>
  mov    -0x38(%rbp),%rax
  mov    %rax,%rdi
  call   <print_reverse@plt>
  mov    -0x50(%rbp),%rax
  mov    %rax,%rdi
  call   <puts@plt>
  mov    -0x18(%rbp),%rax
  mov    %rax,%rdi
  call   <print_reverse@plt>
  mov    -0x48(%rbp),%rax
  mov    %rax,-0x58(%rbp)
  mov    -0x10(%rbp),%rax
  mov    %rax,%rdi
  call   <puts@plt>
  mov    -0x58(%rbp),%rax
  mov    %rax,%rdi
  call   <print_reverse@plt>
  mov    $0x0,%eax
  mov    -0x8(%rbp),%rdx
  sub    %fs:0x28,%rdx
  je     L6
  call   <__stack_chk_fail@plt>
L6:
  leave
  ret
```

tool_calls: name: parse_data
arguments: data_label: D80
data_type: string
name: parse_data
arguments: data_label: D97
data_type: string
name: parse_data
arguments: data_label: D104
data_type: string
name: parse_data
arguments: data_label: D85
data_type: string
name: parse_data
arguments: data_label: D103
data_type: string
name: parse_data
arguments: data_label: D86
data_type: string
name: parse_data
arguments: data_label: D6
data_type: string
name: parse_data
arguments: data_label: D56
data_type: string
name: parse_data
arguments: data_label: D18
data_type: string
name: parse_data
arguments: data_label: D34
data_type: string
name: parse_data
arguments: data_label: D12
data_type: string

tool: D80: dragofruit

tool: D97: waterberry

tool: D104: sharonfruit

tool: D85: uglifruit

tool: D103: rumberry

tool: D86: kiwifruit

tool: D6: mulberry

tool: D56: strawberry

tool: D18: blueberry

tool: D34: blackberry

tool: D12: starfruit

assistant: ```c
int main() {
  char *juices[] = {"dragofruit", "waterberry", "sharonfruit", "uglifruit", "rumberry", "kiwifruit", "mulberry", "strawberry", "blueberry", "blackberry", "starfruit"};
  char *a;
  puts(juices[6]);
  print_reverse(juices[7]);
  a = juices[2];
  juices[2] = juices[8];
  juices[8] = a;
  puts(juices[8]);
  print_reverse(juices[(18 + 7) / 5]);
  puts(juices[2]);
  print_reverse(juices[9]);
  juices[1] = juices[3];
  puts(juices[10]);
  print_reverse(juices[1]);
  return 0;
}
```
user: 请从给定的汇编指令推导出C源代码：

```asm
<main>:
  endbr64
  sub    $0x8,%rsp
  lea    D72(%rip),%rdi
  call   <puts@plt>
  lea    D3(%rip),%rdi
  call   <print_reverse@plt>
  lea    D47(%rip),%rdi
  call   <puts@plt>
  lea    D73(%rip),%rdi
  call   <print_reverse@plt>
  lea    D69(%rip),%rdi
  call   <puts@plt>
  lea    D12(%rip),%rdi
  call   <print_reverse@plt>
  lea    D33(%rip),%rdi
  call   <puts@plt>
  lea    D58(%rip),%rdi
  call   <print_reverse@plt>
  mov    $0x0,%eax
  add    $0x8,%rsp
  ret
```

tool_calls: name: extract_symbolic_data
arguments: tag: D72
type: string
name: extract_symbolic_data
arguments: tag: D3
type: string
name: extract_symbolic_data
arguments: tag: D47
type: string
name: extract_symbolic_data
arguments: tag: D73
type: string
name: extract_symbolic_data
arguments: tag: D69
type: string
name: extract_symbolic_data
arguments: tag: D12
type: string
name: extract_symbolic_data
arguments: tag: D33
type: string
name: extract_symbolic_data
arguments: tag: D58
type: string

tool: D72: mulberry

tool: D3: strawberry

tool: D47: sharonfruit

tool: D73: kiwifruit

tool: D69: blueberry

tool: D12: blackberry

tool: D33: starfruit

tool: D58: uglifruit

assistant: ```c
int main() {
  char *juices[] = {"dragofruit", "waterberry", "sharonfruit", "uglifruit", "rumberry", "kiwifruit", "mulberry", "strawberry", "blueberry", "blackberry", "starfruit"};
  char *a;
  puts(juices[6]);
  print_reverse(juices[7]);
  a = juices[2];
  juices[2] = juices[8];
  juices[8] = a;
  puts(juices[8]);
  print_reverse(juices[(18 + 7) / 5]);
  puts(juices[2]);
  print_reverse(juices[9]);
  juices[1] = juices[3];
  puts(juices[10]);
  print_reverse(juices[1]);
  return 0;
}
```
user: 这段汇编代码用C语言表示是什么样的?

```asm
<main>:
  endbr64
  sub    $0x8,%rsp
  lea    D14(%rip),%rdi
  call   <puts@plt>
  lea    D11(%rip),%rdi
  call   <print_reverse@plt>
  lea    D73(%rip),%rdi
  call   <puts@plt>
  lea    D2(%rip),%rdi
  call   <print_reverse@plt>
  lea    D31(%rip),%rdi
  call   <puts@plt>
  lea    D68(%rip),%rdi
  call   <print_reverse@plt>
  lea    D77(%rip),%rdi
  call   <puts@plt>
  lea    D13(%rip),%rdi
  call   <print_reverse@plt>
  xor    %eax,%eax
  add    $0x8,%rsp
  ret
```

tool_calls: name: unpack_data
arguments: tag: D14
type: string
name: unpack_data
arguments: tag: D11
type: string
name: unpack_data
arguments: tag: D73
type: string
name: unpack_data
arguments: tag: D2
type: string
name: unpack_data
arguments: tag: D31
type: string
name: unpack_data
arguments: tag: D68
type: string
name: unpack_data
arguments: tag: D77
type: string
name: unpack_data
arguments: tag: D13
type: string

tool: D14: mulberry

tool: D11: strawberry

tool: D73: sharonfruit

tool: D2: kiwifruit

tool: D31: blueberry

tool: D68: blackberry

tool: D77: starfruit

tool: D13: uglifruit

assistant: ```c
int main() {
  char *juices[] = {"dragofruit", "waterberry", "sharonfruit", "uglifruit", "rumberry", "kiwifruit", "mulberry", "strawberry", "blueberry", "blackberry", "starfruit"};
  char *a;
  puts(juices[6]);
  print_reverse(juices[7]);
  a = juices[2];
  juices[2] = juices[8];
  juices[8] = a;
  puts(juices[8]);
  print_reverse(juices[(18 + 7) / 5]);
  puts(juices[2]);
  print_reverse(juices[9]);
  juices[1] = juices[3];
  puts(juices[10]);
  print_reverse(juices[1]);
  return 0;
}
```
user: 下面的汇编指令对应的C源代码是什么:

```asm
<main>:
  endbr64
  sub    $0x8,%rsp
  lea    D3(%rip),%rdi
  call   <puts@plt>
  lea    D48(%rip),%rdi
  call   <print_reverse@plt>
  lea    D76(%rip),%rdi
  call   <puts@plt>
  lea    D33(%rip),%rdi
  call   <print_reverse@plt>
  lea    D32(%rip),%rdi
  call   <puts@plt>
  lea    D53(%rip),%rdi
  call   <print_reverse@plt>
  lea    D59(%rip),%rdi
  call   <puts@plt>
  lea    D51(%rip),%rdi
  call   <print_reverse@plt>
  xor    %eax,%eax
  add    $0x8,%rsp
  ret
```

tool_calls: name: read_data
arguments: label: D3
datatype: string
name: read_data
arguments: label: D48
datatype: string
name: read_data
arguments: label: D76
datatype: string
name: read_data
arguments: label: D33
datatype: string
name: read_data
arguments: label: D32
datatype: string
name: read_data
arguments: label: D53
datatype: string
name: read_data
arguments: label: D59
datatype: string
name: read_data
arguments: label: D51
datatype: string

tool: D3: mulberry

tool: D48: strawberry

tool: D76: sharonfruit

tool: D33: kiwifruit

tool: D32: blueberry

tool: D53: blackberry

tool: D59: starfruit

tool: D51: uglifruit

assistant: ```c
int main() {
  char *juices[] = {"dragofruit", "waterberry", "sharonfruit", "uglifruit", "rumberry", "kiwifruit", "mulberry", "strawberry", "blueberry", "blackberry", "starfruit"};
  char *a;
  puts(juices[6]);
  print_reverse(juices[7]);
  a = juices[2];
  juices[2] = juices[8];
  juices[8] = a;
  puts(juices[8]);
  print_reverse(juices[(18 + 7) / 5]);
  puts(juices[2]);
  print_reverse(juices[9]);
  juices[1] = juices[3];
  puts(juices[10]);
  print_reverse(juices[1]);
  return 0;
}
```
user: 请显示与下面列出的汇编代码相匹配的C语言实现:

```asm
<vg_protect_decode_privkey>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x100,%rsp
  mov    %rdi,-0xe8(%rbp)
  mov    %rsi,-0xf0(%rbp)
  mov    %rdx,-0xf8(%rbp)
  mov    %rcx,-0x100(%rbp)
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
  lea    -0x90(%rbp),%rcx
  mov    -0xf8(%rbp),%rax
  mov    $0x80,%edx
  mov    %rcx,%rsi
  mov    %rax,%rdi
  call   <vg_b58_decode_check@plt>
  mov    %eax,-0xdc(%rbp)
  cmpl   $0x1,-0xdc(%rbp)
  jle    L75
  mov    -0xdc(%rbp),%eax
  cmp    $0x80,%eax
  jbe    L18
L75:
  mov    $0x0,%eax
  jmp    L69
L18:
  movzbl -0x90(%rbp),%eax
  movzbl %al,%eax
  cmp    $0x20,%eax
  je     L53
  cmp    $0x4f,%eax
  je     L71
  jmp    L85
L53:
  movl   $0x80,-0xe0(%rbp)
  jmp    L137
L71:
  movl   $0xef,-0xe0(%rbp)
  jmp    L137
L85:
  mov    $0x0,%eax
  jmp    L69
L137:
  cmpq   $0x0,-0xe8(%rbp)
  je     L120
  lea    -0xd0(%rbp),%rdx
  jmp    L39
L120:
  mov    $0x0,%edx
L39:
  mov    -0xdc(%rbp),%eax
  lea    -0x1(%rax),%esi
  lea    -0x90(%rbp),%rax
  add    $0x1,%rax
  mov    -0x100(%rbp),%rcx
  mov    $0x0,%r9d
  mov    %rcx,%r8
  mov    %rdx,%rcx
  mov    %esi,%edx
  mov    %rax,%rsi
  mov    $0xffffffff,%edi
  call   <vg_protect_crypt@plt>
  test   %eax,%eax
  jne    L44
  mov    $0x0,%eax
  jmp    L69
L44:
  movl   $0x1,-0xdc(%rbp)
  cmpq   $0x0,-0xe8(%rbp)
  je     L143
  mov    $0x0,%eax
  call   <BN_new@plt>
  mov    %rax,-0xd8(%rbp)
  mov    -0xd8(%rbp),%rdx
  lea    -0xd0(%rbp),%rax
  mov    $0x20,%esi
  mov    %rax,%rdi
  call   <BN_bin2bn@plt>
  mov    -0xe8(%rbp),%rdx
  mov    -0xd8(%rbp),%rax
  mov    %rdx,%rsi
  mov    %rax,%rdi
  call   <vg_set_privkey@plt>
  mov    %eax,-0xdc(%rbp)
  mov    -0xd8(%rbp),%rax
  mov    %rax,%rdi
  call   <BN_clear_free@plt>
  lea    -0xd0(%rbp),%rax
  mov    $0x40,%esi
  mov    %rax,%rdi
  call   <OPENSSL_cleanse@plt>
L143:
  mov    -0xf0(%rbp),%rax
  mov    -0xe0(%rbp),%edx
  mov    %edx,(%rax)
  mov    -0xdc(%rbp),%eax
L69:
  mov    -0x8(%rbp),%rdx
  sub    %fs:0x28,%rdx
  je     L22
  call   <__stack_chk_fail@plt>
L22:
  leave
  ret
```

assistant: ```c
int vg_protect_decode_privkey(EC_KEY *pkey, int *keytype, const char *encoded, const char *pass) {
  unsigned char ecpriv[64];
  unsigned char ecenc[128];
  BIGNUM *bn;
  int restype;
  int res;
  res = vg_b58_decode_check(encoded, ecenc, sizeof(ecenc));
  if ((res < 2) || (res > sizeof(ecenc)))
    return 0;
  switch (ecenc[0]) {
  case 32:
    restype = 128;
    break;
  case 79:
    restype = 239;
    break;
  default:
    return 0;
  }
  if (!vg_protect_crypt(-1, ecenc + 1, res - 1, pkey ? ecpriv : NULL, pass, 0))
    return 0;
  res = 1;
  if (pkey) {
    bn = BN_new();
    BN_bin2bn(ecpriv, 32, bn);
    res = vg_set_privkey(bn, pkey);
    BN_clear_free(bn);
    OPENSSL_cleanse(ecpriv, sizeof(ecpriv));
  }
  *keytype = restype;
  return res;
}
```
user: Demonstrate the C code that generates the assembly output below:

```asm
<vg_protect_decode_privkey>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0xd8,%rsp
  mov    %rdi,%rbx
  mov    %rsi,%r12
  mov    %rdx,%rdi
  mov    %rcx,%rbp
  mov    %fs:0x28,%rax
  mov    %rax,0xc8(%rsp)
  xor    %eax,%eax
  lea    0x40(%rsp),%rsi
  mov    $0x80,%edx
  call   <vg_b58_decode_check@plt>
  lea    -0x2(%rax),%edx
  mov    $0x0,%r14d
  cmp    $0x7e,%edx
  ja     L89
  movzbl 0x40(%rsp),%edx
  cmp    $0x20,%dl
  je     L73
  mov    $0xef,%r13d
  cmp    $0x4f,%dl
  je     L28
L89:
  mov    0xc8(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L59
  mov    %r14d,%eax
  add    $0xd8,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L73:
  mov    $0x80,%r13d
L28:
  test   %rbx,%rbx
  je     L16
  mov    %rsp,%rcx
  lea    -0x1(%rax),%edx
  lea    0x41(%rsp),%rsi
  mov    $0x0,%r9d
  mov    %rbp,%r8
  mov    $0xffffffff,%edi
  call   <vg_protect_crypt@plt>
  mov    %eax,%r14d
  test   %eax,%eax
  je     L89
  mov    $0x0,%eax
  call   <BN_new@plt>
  mov    %rax,%rbp
  mov    %rsp,%r15
  mov    %rax,%rdx
  mov    $0x20,%esi
  mov    %r15,%rdi
  call   <BN_bin2bn@plt>
  mov    %rbx,%rsi
  mov    %rbp,%rdi
  call   <vg_set_privkey@plt>
  mov    %eax,%r14d
  mov    %rbp,%rdi
  call   <BN_clear_free@plt>
  mov    $0x40,%esi
  mov    %r15,%rdi
  call   <OPENSSL_cleanse@plt>
L76:
  mov    %r13d,(%r12)
  jmp    L89
L16:
  lea    -0x1(%rax),%edx
  lea    0x41(%rsp),%rsi
  mov    $0x0,%r9d
  mov    %rbp,%r8
  mov    $0x0,%ecx
  mov    $0xffffffff,%edi
  call   <vg_protect_crypt@plt>
  mov    %eax,%r14d
  test   %eax,%eax
  je     L89
  mov    $0x1,%r14d
  jmp    L76
L59:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
int vg_protect_decode_privkey(EC_KEY *pkey, int *keytype, const char *encoded, const char *pass) {
  unsigned char ecpriv[64];
  unsigned char ecenc[128];
  BIGNUM *bn;
  int restype;
  int res;
  res = vg_b58_decode_check(encoded, ecenc, sizeof(ecenc));
  if ((res < 2) || (res > sizeof(ecenc)))
    return 0;
  switch (ecenc[0]) {
  case 32:
    restype = 128;
    break;
  case 79:
    restype = 239;
    break;
  default:
    return 0;
  }
  if (!vg_protect_crypt(-1, ecenc + 1, res - 1, pkey ? ecpriv : NULL, pass, 0))
    return 0;
  res = 1;
  if (pkey) {
    bn = BN_new();
    BN_bin2bn(ecpriv, 32, bn);
    res = vg_set_privkey(bn, pkey);
    BN_clear_free(bn);
    OPENSSL_cleanse(ecpriv, sizeof(ecpriv));
  }
  *keytype = restype;
  return res;
}
```