ylfeng/ReF-Decompile-dataset huggingface dataset:
user: What is the c source code of the assembly code below:

```asm
<main>:
  endbr64
  push   %r12
  mov    $0x1400,%edi
  push   %rbp
  sub    $0x8,%rsp
  call   <netmalloc@plt>
  lea    D16(%rip),%rsi
  mov    %rax,%rbp
  mov    %rax,%rdi
  call   <sprintf@plt>
  lea    0xffe(%rbp),%r12
  lea    D34(%rip),%rsi
  mov    %r12,%rdi
  call   <sprintf@plt>
  mov    %rbp,%rsi
  lea    D0(%rip),%rdi
  call   <printf@plt>
  mov    %r12,%rsi
  lea    D32(%rip),%rdi
  call   <printf@plt>
  mov    %rbp,%rdi
  call   <netfree@plt>
  add    $0x8,%rsp
  xor    %eax,%eax
  pop    %rbp
  pop    %r12
  ret
```

tool_calls: name: unpack_data
arguments: data_label: D16
type_guessed: string
name: unpack_data
arguments: data_label: D34
type_guessed: string
name: unpack_data
arguments: data_label: D0
type_guessed: string
name: unpack_data
arguments: data_label: D32
type_guessed: string

tool: D16: toto

tool: D34: foobar

tool: D0: toto = %s


tool: D32: foobar = %s


assistant: ```c
int main(void) {
  char *buffer = netmalloc(5120);
  sprintf(buffer, "toto");
  sprintf(buffer + 4094, "foobar");
  printf("toto = %s\n", buffer);
  printf("foobar = %s\n", buffer + 4094);
  netfree(buffer);
  return 0;
}
```
user: 下面的汇编指令对应的C源代码是什么:

```asm
<nvmed_check_buffer>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x30,%rsp
  mov    %rdi,-0x28(%rbp)
  movl   $0x0,-0x14(%rbp)
  cmpq   $0x0,-0x28(%rbp)
  jne    L72
  mov    $0x0,%eax
  jmp    L63
L72:
  mov    -0x28(%rbp),%rax
  mov    %rax,%rdi
  call   <malloc_usable_size@plt>
  mov    %rax,-0x10(%rbp)
  mov    D2(%rip),%rax
  mov    (%rax),%eax
  mov    %eax,%edi
  call   <sysconf@plt>
  mov    %eax,%eax
  cmp    %rax,-0x10(%rbp)
  jae    L49
  mov    $0x0,%eax
  jmp    L63
L49:
  mov    D2(%rip),%rax
  mov    (%rax),%eax
  mov    %eax,%edi
  call   <sysconf@plt>
  mov    %eax,%ecx
  mov    -0x10(%rbp),%rax
  mov    $0x0,%edx
  div    %rcx
  mov    %eax,-0x18(%rbp)
  cmpl   $0x1ff,-0x18(%rbp)
  jbe    L41
  mov    -0x18(%rbp),%eax
  shr    $0x9,%eax
  sub    %eax,-0x18(%rbp)
L41:
  mov    D2(%rip),%rax
  mov    (%rax),%eax
  mov    %eax,%edi
  call   <sysconf@plt>
  imul   -0x18(%rbp),%eax
  mov    %eax,%edx
  mov    -0x28(%rbp),%rax
  add    %rdx,%rax
  mov    %rax,-0x8(%rbp)
  mov    -0x8(%rbp),%rax
  mov    (%rax),%eax
  cmp    $0x4e564ded,%eax
  jne    L22
  addq   $0x4,-0x8(%rbp)
  mov    -0x8(%rbp),%rax
  mov    (%rax),%eax
  mov    %eax,-0x14(%rbp)
  jmp    L6
L22:
  subl   $0x1,-0x18(%rbp)
  mov    D2(%rip),%rax
  mov    (%rax),%eax
  mov    %eax,%edi
  call   <sysconf@plt>
  imul   -0x18(%rbp),%eax
  mov    %eax,%edx
  mov    -0x28(%rbp),%rax
  add    %rdx,%rax
  mov    %rax,-0x8(%rbp)
  mov    -0x8(%rbp),%rax
  mov    (%rax),%eax
  cmp    $0x4e564ded,%eax
  jne    L6
  addq   $0x4,-0x8(%rbp)
  mov    -0x8(%rbp),%rax
  mov    (%rax),%eax
  mov    %eax,-0x14(%rbp)
L6:
  mov    -0x14(%rbp),%eax
L63:
  leave
  ret
```

assistant: ```c
unsigned int nvmed_check_buffer(void *nvmed_buf) {
  size_t buf_size;
  unsigned int predict_size, actual_size = 0;
  unsigned int *magic;
  if (nvmed_buf == NULL)
    return 0;
  buf_size = malloc_usable_size(nvmed_buf);
  if (buf_size < sysconf(_SC_PAGESIZE))
    return 0;
  predict_size = buf_size / sysconf(_SC_PAGESIZE);
  if (predict_size >= 512)
    predict_size -= predict_size >> 9;
  magic = nvmed_buf + (sysconf(_SC_PAGESIZE) * predict_size);
  if (*magic == 0x4E564DED) {
    actual_size = *(++magic);
  } else {
    predict_size--;
    magic = nvmed_buf + (sysconf(_SC_PAGESIZE) * predict_size);
    if (*magic == 0x4E564DED) {
      actual_size = *(++magic);
    }
  }
  return actual_size;
}
```
user: What is the c source code of the assembly code below:

```asm
<nvmed_check_buffer>:
  endbr64
  mov    $0x0,%eax
  test   %rdi,%rdi
  je     L49
  push   %rbp
  push   %rbx
  sub    $0x8,%rsp
  mov    %rdi,%rbp
  call   <malloc_usable_size@plt>
  mov    %rax,%rbx
  mov    D31(%rip),%rax
  mov    (%rax),%edi
  call   <sysconf@plt>
  mov    %eax,%edx
  mov    $0x0,%eax
  cmp    %rbx,%rdx
  jbe    L21
L7:
  add    $0x8,%rsp
  pop    %rbx
  pop    %rbp
  ret
L21:
  mov    D31(%rip),%rax
  mov    (%rax),%edi
  call   <sysconf@plt>
  mov    %eax,%ecx
  mov    %rbx,%rax
  mov    $0x0,%edx
  div    %rcx
  mov    %rax,%rbx
  mov    %eax,%ecx
  shr    $0x9,%ecx
  mov    %eax,%edx
  sub    %ecx,%edx
  cmp    $0x1ff,%eax
  cmova  %edx,%ebx
  mov    D31(%rip),%rax
  mov    (%rax),%edi
  call   <sysconf@plt>
  imul   %ebx,%eax
  add    %rbp,%rax
  cmpl   $0x4e564ded,(%rax)
  jne    L6
  mov    0x4(%rax),%eax
  jmp    L7
L6:
  mov    D31(%rip),%rax
  mov    (%rax),%edi
  call   <sysconf@plt>
  sub    $0x1,%ebx
  imul   %eax,%ebx
  add    %rbx,%rbp
  mov    $0x0,%eax
  cmpl   $0x4e564ded,0x0(%rbp)
  jne    L7
  mov    0x4(%rbp),%eax
  jmp    L7
L49:
  ret
```

assistant: ```c
unsigned int nvmed_check_buffer(void *nvmed_buf) {
  size_t buf_size;
  unsigned int predict_size, actual_size = 0;
  unsigned int *magic;
  if (nvmed_buf == NULL)
    return 0;
  buf_size = malloc_usable_size(nvmed_buf);
  if (buf_size < sysconf(_SC_PAGESIZE))
    return 0;
  predict_size = buf_size / sysconf(_SC_PAGESIZE);
  if (predict_size >= 512)
    predict_size -= predict_size >> 9;
  magic = nvmed_buf + (sysconf(_SC_PAGESIZE) * predict_size);
  if (*magic == 0x4E564DED) {
    actual_size = *(++magic);
  } else {
    predict_size--;
    magic = nvmed_buf + (sysconf(_SC_PAGESIZE) * predict_size);
    if (*magic == 0x4E564DED) {
      actual_size = *(++magic);
    }
  }
  return actual_size;
}
```
user: Demonstrate the C code that generates the assembly output below:

```asm
<nvmed_check_buffer>:
  endbr64
  test   %rdi,%rdi
  je     L28
  push   %r12
  push   %rbp
  mov    %rdi,%rbp
  push   %rbx
  call   <malloc_usable_size@plt>
  mov    D6(%rip),%r12
  mov    %rax,%rbx
  mov    (%r12),%edi
  call   <sysconf@plt>
  mov    %eax,%eax
  cmp    %rbx,%rax
  jbe    L31
L23:
  xor    %eax,%eax
L24:
  pop    %rbx
  pop    %rbp
  pop    %r12
  ret
  nopw   0x0(%rax,%rax,1)
L31:
  mov    (%r12),%edi
  call   <sysconf@plt>
  xor    %edx,%edx
  mov    (%r12),%edi
  mov    %eax,%ecx
  mov    %rbx,%rax
  div    %rcx
  mov    %eax,%ecx
  mov    %eax,%edx
  mov    %rax,%rbx
  shr    $0x9,%ecx
  sub    %ecx,%edx
  cmp    $0x1ff,%eax
  cmova  %edx,%ebx
  call   <sysconf@plt>
  imul   %ebx,%eax
  add    %rbp,%rax
  cmpl   $0x4e564ded,(%rax)
  jne    L34
  pop    %rbx
  mov    0x4(%rax),%eax
  pop    %rbp
  pop    %r12
  ret
  cs nopw 0x0(%rax,%rax,1)
L28:
  xor    %eax,%eax
  ret
  nopl   0x0(%rax,%rax,1)
L34:
  mov    (%r12),%edi
  sub    $0x1,%ebx
  call   <sysconf@plt>
  imul   %eax,%ebx
  add    %rbx,%rbp
  cmpl   $0x4e564ded,0x0(%rbp)
  jne    L23
  mov    0x4(%rbp),%eax
  jmp    L24
```

assistant: ```c
unsigned int nvmed_check_buffer(void *nvmed_buf) {
  size_t buf_size;
  unsigned int predict_size, actual_size = 0;
  unsigned int *magic;
  if (nvmed_buf == NULL)
    return 0;
  buf_size = malloc_usable_size(nvmed_buf);
  if (buf_size < sysconf(_SC_PAGESIZE))
    return 0;
  predict_size = buf_size / sysconf(_SC_PAGESIZE);
  if (predict_size >= 512)
    predict_size -= predict_size >> 9;
  magic = nvmed_buf + (sysconf(_SC_PAGESIZE) * predict_size);
  if (*magic == 0x4E564DED) {
    actual_size = *(++magic);
  } else {
    predict_size--;
    magic = nvmed_buf + (sysconf(_SC_PAGESIZE) * predict_size);
    if (*magic == 0x4E564DED) {
      actual_size = *(++magic);
    }
  }
  return actual_size;
}
```
user: 这段汇编代码用C语言表示是什么样的：

```asm
<nvmed_check_buffer>:
  endbr64
  test   %rdi,%rdi
  je     L22
  push   %r12
  push   %rbp
  mov    %rdi,%rbp
  push   %rbx
  call   <malloc_usable_size@plt>
  mov    D5(%rip),%r12
  mov    %rax,%rbx
  mov    (%r12),%edi
  call   <sysconf@plt>
  mov    %eax,%eax
  cmp    %rbx,%rax
  jbe    L4
L12:
  xor    %eax,%eax
L9:
  pop    %rbx
  pop    %rbp
  pop    %r12
  ret
  nopw   0x0(%rax,%rax,1)
L4:
  mov    (%r12),%edi
  call   <sysconf@plt>
  xor    %edx,%edx
  mov    (%r12),%edi
  mov    %eax,%ecx
  mov    %rbx,%rax
  div    %rcx
  mov    %eax,%ecx
  mov    %eax,%edx
  mov    %rax,%rbx
  shr    $0x9,%ecx
  sub    %ecx,%edx
  cmp    $0x1ff,%eax
  cmova  %edx,%ebx
  call   <sysconf@plt>
  imul   %ebx,%eax
  add    %rbp,%rax
  cmpl   $0x4e564ded,(%rax)
  jne    L0
  pop    %rbx
  mov    0x4(%rax),%eax
  pop    %rbp
  pop    %r12
  ret
  cs nopw 0x0(%rax,%rax,1)
L22:
  xor    %eax,%eax
  ret
  nopl   0x0(%rax,%rax,1)
L0:
  mov    (%r12),%edi
  sub    $0x1,%ebx
  call   <sysconf@plt>
  imul   %eax,%ebx
  add    %rbx,%rbp
  cmpl   $0x4e564ded,0x0(%rbp)
  jne    L12
  mov    0x4(%rbp),%eax
  jmp    L9
```

assistant: ```c
unsigned int nvmed_check_buffer(void *nvmed_buf) {
  size_t buf_size;
  unsigned int predict_size, actual_size = 0;
  unsigned int *magic;
  if (nvmed_buf == NULL)
    return 0;
  buf_size = malloc_usable_size(nvmed_buf);
  if (buf_size < sysconf(_SC_PAGESIZE))
    return 0;
  predict_size = buf_size / sysconf(_SC_PAGESIZE);
  if (predict_size >= 512)
    predict_size -= predict_size >> 9;
  magic = nvmed_buf + (sysconf(_SC_PAGESIZE) * predict_size);
  if (*magic == 0x4E564DED) {
    actual_size = *(++magic);
  } else {
    predict_size--;
    magic = nvmed_buf + (sysconf(_SC_PAGESIZE) * predict_size);
    if (*magic == 0x4E564DED) {
      actual_size = *(++magic);
    }
  }
  return actual_size;
}
```
user: Please show me the C implementation that matches the assembly code listed below:

```asm
<main>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x10,%rsp
  mov    $0xbb9ac9ff,%eax
  mov    %rax,-0x10(%rbp)
  mov    %rax,-0x8(%rbp)
  mov    -0x10(%rbp),%rax
  mov    %rax,%rsi
  lea    D3(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
  mov    -0x8(%rbp),%rax
  mov    %rax,%rsi
  lea    D11(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
  mov    $0x0,%eax
  leave
  ret
```

tool_calls: name: retrieve_data
arguments: tag: D3
data_type: string
name: retrieve_data
arguments: tag: D11
data_type: string

tool: D3: signed long: %d


tool: D11: unsigned long: %u


assistant: ```c
int main(void) {
  long int x = 3147483647;
  unsigned long int y = 3147483647;
  printf("signed long: %d\n", x);
  printf("unsigned long: %u\n", y);
  return 0;
}
```
user: 这段汇编代码用C语言表示是什么样的?

```asm
<main>:
  endbr64
  push   %rbx
  mov    $0xbb9ac9ff,%ebx
  mov    %rbx,%rsi
  lea    D7(%rip),%rdi
  call   <printf@plt>
  mov    %rbx,%rsi
  lea    D15(%rip),%rdi
  call   <printf@plt>
  mov    $0x0,%eax
  pop    %rbx
  ret
```

tool_calls: name: read_data
arguments: label: D7
data_type: string
name: read_data
arguments: label: D15
data_type: string

tool: D7: signed long: %d


tool: D15: unsigned long: %u


assistant: ```c
int main(void) {
  long int x = 3147483647;
  unsigned long int y = 3147483647;
  printf("signed long: %d\n", x);
  printf("unsigned long: %u\n", y);
  return 0;
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<main>:
  endbr64
  push   %rbp
  mov    $0xbb9ac9ff,%ebp
  lea    D1(%rip),%rdi
  mov    %rbp,%rsi
  call   <printf@plt>
  mov    %rbp,%rsi
  lea    D4(%rip),%rdi
  call   <printf@plt>
  xor    %eax,%eax
  pop    %rbp
  ret
```

tool_calls: name: unpack_data
arguments: data_label: D1
type_guessed: string
name: unpack_data
arguments: data_label: D4
type_guessed: string

tool: D1: signed long: %d


tool: D4: unsigned long: %u


assistant: ```c
int main(void) {
  long int x = 3147483647;
  unsigned long int y = 3147483647;
  printf("signed long: %d\n", x);
  printf("unsigned long: %u\n", y);
  return 0;
}
```
user: 提供的汇编代码用C语言表示会是什么样子：

```asm
<main>:
  endbr64
  push   %rbp
  mov    $0xbb9ac9ff,%ebp
  lea    D5(%rip),%rdi
  mov    %rbp,%rsi
  call   <printf@plt>
  mov    %rbp,%rsi
  lea    D1(%rip),%rdi
  call   <printf@plt>
  xor    %eax,%eax
  pop    %rbp
  ret
```

tool_calls: name: read_data
arguments: tag: D5
type_infered: string
name: read_data
arguments: tag: D1
type_infered: string

tool: D5: signed long: %d


tool: D1: unsigned long: %u


assistant: ```c
int main(void) {
  long int x = 3147483647;
  unsigned long int y = 3147483647;
  printf("signed long: %d\n", x);
  printf("unsigned long: %u\n", y);
  return 0;
}
```
user: What is the c source code of the assembly code below:

```asm
<exponent>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  movsd  %xmm0,-0x18(%rbp)
  movsd  %xmm1,-0x20(%rbp)
  movsd  -0x18(%rbp),%xmm0
  movsd  %xmm0,-0x8(%rbp)
  movl   $0x1,-0xc(%rbp)
  jmp    L17
L0:
  movsd  -0x8(%rbp),%xmm0
  mulsd  -0x18(%rbp),%xmm0
  movsd  %xmm0,-0x8(%rbp)
  addl   $0x1,-0xc(%rbp)
L17:
  pxor   %xmm1,%xmm1
  cvtsi2sdl -0xc(%rbp),%xmm1
  movsd  -0x20(%rbp),%xmm0
  comisd %xmm1,%xmm0
  ja     L0
  movsd  -0x8(%rbp),%xmm0
  movq   %xmm0,%rax
  movq   %rax,%xmm0
  pop    %rbp
  ret
```

assistant: ```c
double exponent(double a, double ex) {
  double result = a;
  for (int i = 1; i < ex; ++i)
    result = result * a;
  return result;
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<readn>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x40,%rsp
  mov    %edi,-0x24(%rbp)
  mov    %rsi,-0x30(%rbp)
  mov    %rdx,-0x38(%rbp)
  mov    -0x30(%rbp),%rax
  mov    %rax,-0x8(%rbp)
  mov    -0x38(%rbp),%rax
  mov    %rax,-0x10(%rbp)
  jmp    L65
L51:
  mov    -0x10(%rbp),%rdx
  mov    -0x8(%rbp),%rcx
  mov    -0x24(%rbp),%eax
  mov    %rcx,%rsi
  mov    %eax,%edi
  call   <read@plt>
  mov    %eax,-0x14(%rbp)
  cmpl   $0x0,-0x14(%rbp)
  jns    L66
  mov    D15(%rip),%rax
  mov    (%rax),%rdx
  mov    D14(%rip),%rax
  mov    (%rax),%rax
  cmp    %rax,%rdx
  jne    L21
  movl   $0x0,-0x14(%rbp)
  jmp    L36
L21:
  mov    $0xffffffff,%eax
  jmp    L74
L66:
  cmpl   $0x0,-0x14(%rbp)
  je     L78
L36:
  mov    -0x14(%rbp),%eax
  cltq
  sub    %rax,-0x10(%rbp)
  mov    -0x14(%rbp),%eax
  cltq
  add    %rax,-0x8(%rbp)
L65:
  cmpq   $0x0,-0x10(%rbp)
  jne    L51
  jmp    L7
L78:
  nop
L7:
  mov    -0x38(%rbp),%rax
  mov    %eax,%edx
  mov    -0x10(%rbp),%rax
  mov    %eax,%ecx
  mov    %edx,%eax
  sub    %ecx,%eax
L74:
  leave
  ret
```

assistant: ```c
ssize_t readn(int sock, void *buf, size_t n) {
  size_t nleft;
  ssize_t nread;
  char *ptr;
  ptr = buf;
  nleft = n;
  while (nleft > 0) {
    if ((nread = read(sock, ptr, nleft)) < 0) {
      if (errno == EINTR)
        nread = 0;
      else
        return -1;
    } else if (nread == 0) {
      break;
    }
    nleft -= nread;
    ptr += nread;
  }
  return (n - nleft);
}
```
user: 请显示与下面列出的汇编代码相匹配的C语言实现：

```asm
<readn>:
  endbr64
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  mov    %rdx,%r13
  test   %rdx,%rdx
  je     L27
  mov    %edi,%r12d
  mov    %rsi,%rbp
  mov    %rdx,%rbx
  mov    $0x0,%r14d
  jmp    L21
L11:
  mov    D10(%rip),%rdx
  mov    D13(%rip),%rax
  mov    (%rax),%rax
  cmp    %rax,(%rdx)
  jne    L79
  mov    %r14d,%eax
L48:
  cltq
  add    %rax,%rbp
  sub    %rax,%rbx
  je     L44
L21:
  mov    %rbx,%rdx
  mov    %rbp,%rsi
  mov    %r12d,%edi
  call   <read@plt>
  test   %eax,%eax
  js     L11
  jne    L48
L44:
  mov    %r13d,%eax
  sub    %ebx,%eax
L1:
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  ret
L79:
  mov    $0xffffffff,%eax
  jmp    L1
L27:
  mov    %rdx,%rbx
  jmp    L44
```

assistant: ```c
ssize_t readn(int sock, void *buf, size_t n) {
  size_t nleft;
  ssize_t nread;
  char *ptr;
  ptr = buf;
  nleft = n;
  while (nleft > 0) {
    if ((nread = read(sock, ptr, nleft)) < 0) {
      if (errno == EINTR)
        nread = 0;
      else
        return -1;
    } else if (nread == 0) {
      break;
    }
    nleft -= nread;
    ptr += nread;
  }
  return (n - nleft);
}
```
user: Demonstrate the C code that generates the assembly output below:

```asm
<readn>:
  endbr64
  push   %r13
  mov    %rsi,%r13
  push   %r12
  mov    %edi,%r12d
  push   %rbp
  mov    %rdx,%rbp
  push   %rbx
  mov    %rdx,%rbx
  sub    $0x8,%rsp
  test   %rdx,%rdx
  je     L15
  nop
L46:
  mov    %rbx,%rdx
  mov    %r13,%rsi
  mov    %r12d,%edi
  call   <read@plt>
  test   %eax,%eax
  js     L39
  je     L43
  cltq
  add    %rax,%r13
  sub    %rax,%rbx
  jne    L46
L15:
  xor    %ebx,%ebx
L43:
  add    $0x8,%rsp
  mov    %ebp,%eax
  sub    %ebx,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
  nop
L39:
  mov    D14(%rip),%rax
  mov    D9(%rip),%rdx
  mov    (%rax),%rax
  cmp    %rax,(%rdx)
  je     L46
  add    $0x8,%rsp
  mov    $0xffffffff,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
```

assistant: ```c
ssize_t readn(int sock, void *buf, size_t n) {
  size_t nleft;
  ssize_t nread;
  char *ptr;
  ptr = buf;
  nleft = n;
  while (nleft > 0) {
    if ((nread = read(sock, ptr, nleft)) < 0) {
      if (errno == EINTR)
        nread = 0;
      else
        return -1;
    } else if (nread == 0) {
      break;
    }
    nleft -= nread;
    ptr += nread;
  }
  return (n - nleft);
}
```
user: What is the c source code of the assembly code below?

```asm
<readn>:
  endbr64
  push   %r13
  mov    %rsi,%r13
  push   %r12
  mov    %edi,%r12d
  push   %rbp
  mov    %rdx,%rbp
  push   %rbx
  mov    %rdx,%rbx
  sub    $0x8,%rsp
  test   %rdx,%rdx
  je     L24
  nop
L34:
  mov    %rbx,%rdx
  mov    %r13,%rsi
  mov    %r12d,%edi
  call   <read@plt>
  test   %eax,%eax
  js     L35
  je     L43
  cltq
  add    %rax,%r13
  sub    %rax,%rbx
  jne    L34
L24:
  xor    %ebx,%ebx
L43:
  add    $0x8,%rsp
  mov    %ebp,%eax
  sub    %ebx,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
  nop
L35:
  mov    D16(%rip),%rax
  mov    D10(%rip),%rdx
  mov    (%rax),%rax
  cmp    %rax,(%rdx)
  je     L34
  add    $0x8,%rsp
  mov    $0xffffffff,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
```

assistant: ```c
ssize_t readn(int sock, void *buf, size_t n) {
  size_t nleft;
  ssize_t nread;
  char *ptr;
  ptr = buf;
  nleft = n;
  while (nleft > 0) {
    if ((nread = read(sock, ptr, nleft)) < 0) {
      if (errno == EINTR)
        nread = 0;
      else
        return -1;
    } else if (nread == 0) {
      break;
    }
    nleft -= nread;
    ptr += nread;
  }
  return (n - nleft);
}
```
user: 请从给定的汇编指令推导出C源代码：

```asm
<BN_X931_generate_Xpq>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  push   %rbx
  sub    $0x38,%rsp
  mov    %rdi,-0x28(%rbp)
  mov    %rsi,-0x30(%rbp)
  mov    %edx,-0x34(%rbp)
  mov    %rcx,-0x40(%rbp)
  cmpl   $0x3ff,-0x34(%rbp)
  jle    L6
  mov    -0x34(%rbp),%eax
  movzbl %al,%eax
  test   %eax,%eax
  je     L37
L6:
  mov    $0x0,%eax
  jmp    L75
L37:
  sarl   -0x34(%rbp)
  mov    -0x34(%rbp),%esi
  mov    -0x28(%rbp),%rax
  mov    $0x0,%ecx
  mov    $0x1,%edx
  mov    %rax,%rdi
  call   <BN_rand@plt>
  test   %eax,%eax
  je     L18
  mov    -0x40(%rbp),%rax
  mov    %rax,%rdi
  call   <BN_CTX_start@plt>
  mov    -0x40(%rbp),%rax
  mov    %rax,%rdi
  call   <BN_CTX_get@plt>
  mov    %rax,-0x18(%rbp)
  movl   $0x0,-0x1c(%rbp)
  jmp    L48
L69:
  mov    -0x34(%rbp),%esi
  mov    -0x30(%rbp),%rax
  mov    $0x0,%ecx
  mov    $0x1,%edx
  mov    %rax,%rdi
  call   <BN_rand@plt>
  test   %eax,%eax
  je     L72
  mov    -0x30(%rbp),%rdx
  mov    -0x28(%rbp),%rcx
  mov    -0x18(%rbp),%rax
  mov    %rcx,%rsi
  mov    %rax,%rdi
  call   <BN_sub@plt>
  mov    -0x34(%rbp),%eax
  lea    -0x63(%rax),%ebx
  mov    -0x18(%rbp),%rax
  mov    %rax,%rdi
  call   <BN_num_bits@plt>
  cmp    %eax,%ebx
  jle    L1
  addl   $0x1,-0x1c(%rbp)
L48:
  cmpl   $0x3e7,-0x1c(%rbp)
  jle    L69
  jmp    L67
L1:
  nop
L67:
  mov    -0x40(%rbp),%rax
  mov    %rax,%rdi
  call   <BN_CTX_end@plt>
  cmpl   $0x3e7,-0x1c(%rbp)
  jg     L124
  mov    $0x1,%eax
  jmp    L75
L124:
  mov    $0x0,%eax
  jmp    L75
L18:
  nop
  jmp    L90
L72:
  nop
L90:
  mov    -0x40(%rbp),%rax
  mov    %rax,%rdi
  call   <BN_CTX_end@plt>
  mov    $0x0,%eax
L75:
  mov    -0x8(%rbp),%rbx
  leave
  ret
```

assistant: ```c
int BN_X931_generate_Xpq(BIGNUM *Xp, BIGNUM *Xq, int nbits, BN_CTX *ctx) {
  BIGNUM *t;
  int i;
  if ((nbits < 1024) || (nbits & 0xff))
    return 0;
  nbits >>= 1;
  if (!BN_rand(Xp, nbits, 1, 0))
    goto err;
  BN_CTX_start(ctx);
  t = BN_CTX_get(ctx);
  for (i = 0; i < 1000; i++) {
    if (!BN_rand(Xq, nbits, 1, 0))
      goto err;
    BN_sub(t, Xp, Xq);
    if (BN_num_bits(t) > (nbits - 100))
      break;
  }
  BN_CTX_end(ctx);
  if (i < 1000)
    return 1;
  return 0;
err:
  BN_CTX_end(ctx);
  return 0;
}
```
user: 请将以下的汇编代码转换成C语言代码:

```asm
<BN_X931_generate_Xpq>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x18,%rsp
  mov    %rdi,(%rsp)
  mov    %rcx,0x8(%rsp)
  mov    $0x0,%r14d
  cmp    $0x3ff,%edx
  jle    L58
  mov    %rsi,%rbp
  mov    %edx,%ebx
  mov    %rcx,%r15
  mov    %edx,%r14d
  and    $0xff,%r14d
  je     L55
  mov    $0x0,%r14d
L58:
  mov    %r14d,%eax
  add    $0x18,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L55:
  sar    %ebx
  mov    $0x0,%ecx
  mov    $0x1,%edx
  mov    %ebx,%esi
  call   <BN_rand@plt>
  test   %eax,%eax
  jne    L40
L17:
  mov    0x8(%rsp),%rdi
  call   <BN_CTX_end@plt>
  jmp    L58
L40:
  mov    %r15,%rdi
  call   <BN_CTX_start@plt>
  mov    %r15,%rdi
  call   <BN_CTX_get@plt>
  mov    %rax,%r13
  mov    %r14d,%r12d
  lea    -0x63(%rbx),%r15d
L44:
  mov    $0x0,%ecx
  mov    $0x1,%edx
  mov    %ebx,%esi
  mov    %rbp,%rdi
  call   <BN_rand@plt>
  test   %eax,%eax
  je     L17
  mov    %rbp,%rdx
  mov    (%rsp),%rsi
  mov    %r13,%rdi
  call   <BN_sub@plt>
  mov    %r13,%rdi
  call   <BN_num_bits@plt>
  cmp    %eax,%r15d
  jle    L61
  add    $0x1,%r12d
  cmp    $0x3e8,%r12d
  jne    L44
L61:
  mov    0x8(%rsp),%rdi
  call   <BN_CTX_end@plt>
  cmp    $0x3e7,%r12d
  setle  %r14b
  movzbl %r14b,%r14d
  jmp    L58
```

assistant: ```c
int BN_X931_generate_Xpq(BIGNUM *Xp, BIGNUM *Xq, int nbits, BN_CTX *ctx) {
  BIGNUM *t;
  int i;
  if ((nbits < 1024) || (nbits & 0xff))
    return 0;
  nbits >>= 1;
  if (!BN_rand(Xp, nbits, 1, 0))
    goto err;
  BN_CTX_start(ctx);
  t = BN_CTX_get(ctx);
  for (i = 0; i < 1000; i++) {
    if (!BN_rand(Xq, nbits, 1, 0))
      goto err;
    BN_sub(t, Xp, Xq);
    if (BN_num_bits(t) > (nbits - 100))
      break;
  }
  BN_CTX_end(ctx);
  if (i < 1000)
    return 1;
  return 0;
err:
  BN_CTX_end(ctx);
  return 0;
}
```
user: 下面的汇编指令对应的C源代码是什么：

```asm
<BN_X931_generate_Xpq>:
  endbr64
  push   %r15
  xor    %r15d,%r15d
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x18,%rsp
  mov    %rcx,0x8(%rsp)
  cmp    $0x3ff,%edx
  jle    L18
  mov    %edx,%r15d
  mov    %edx,%ebx
  and    $0xff,%r15d
  je     L4
  xor    %r15d,%r15d
L18:
  add    $0x18,%rsp
  mov    %r15d,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
  nopl   (%rax)
L4:
  sar    %ebx
  mov    %rsi,%rbp
  mov    %rcx,%r14
  mov    $0x1,%edx
  xor    %ecx,%ecx
  mov    %ebx,%esi
  mov    %rdi,%r13
  call   <BN_rand@plt>
  test   %eax,%eax
  jne    L20
L78:
  mov    0x8(%rsp),%rdi
  call   <BN_CTX_end@plt>
  jmp    L18
  nopl   0x0(%rax)
L20:
  mov    %r14,%rdi
  mov    $0x3e8,%r12d
  call   <BN_CTX_start@plt>
  mov    %r14,%rdi
  call   <BN_CTX_get@plt>
  mov    %rax,%r14
  lea    -0x63(%rbx),%eax
  mov    %eax,0x4(%rsp)
  jmp    L93
  nopw   0x0(%rax,%rax,1)
L32:
  mov    %r14,%rdi
  mov    %rbp,%rdx
  mov    %r13,%rsi
  call   <BN_sub@plt>
  mov    %r14,%rdi
  call   <BN_num_bits@plt>
  cmp    %eax,0x4(%rsp)
  jle    L99
  sub    $0x1,%r12d
  je     L78
L93:
  xor    %ecx,%ecx
  mov    $0x1,%edx
  mov    %ebx,%esi
  mov    %rbp,%rdi
  call   <BN_rand@plt>
  test   %eax,%eax
  jne    L32
  jmp    L78
  nopl   0x0(%rax)
L99:
  mov    0x8(%rsp),%rdi
  mov    $0x1,%r15d
  call   <BN_CTX_end@plt>
  jmp    L18
```

assistant: ```c
int BN_X931_generate_Xpq(BIGNUM *Xp, BIGNUM *Xq, int nbits, BN_CTX *ctx) {
  BIGNUM *t;
  int i;
  if ((nbits < 1024) || (nbits & 0xff))
    return 0;
  nbits >>= 1;
  if (!BN_rand(Xp, nbits, 1, 0))
    goto err;
  BN_CTX_start(ctx);
  t = BN_CTX_get(ctx);
  for (i = 0; i < 1000; i++) {
    if (!BN_rand(Xq, nbits, 1, 0))
      goto err;
    BN_sub(t, Xp, Xq);
    if (BN_num_bits(t) > (nbits - 100))
      break;
  }
  BN_CTX_end(ctx);
  if (i < 1000)
    return 1;
  return 0;
err:
  BN_CTX_end(ctx);
  return 0;
}
```