ylfeng/ReF-Decompile-dataset huggingface dataset:
user: 这段汇编代码用C语言表示是什么样的?

```asm
<exclude_interval>:
  endbr64
  test   %rdi,%rdi
  je     L40
  lea    (%rcx,%rdi,8),%r9
  xor    %eax,%eax
  jmp    L35
  nopl   0x0(%rax)
L50:
  add    $0x8,%rcx
  cmp    %rcx,%r9
  je     L38
L35:
  mov    (%rcx),%rdi
  cmp    %rsi,%rdi
  jl     L28
  cmp    %rdx,%rdi
  jle    L50
L28:
  add    $0x8,%rcx
  mov    %rdi,(%r8,%rax,8)
  add    $0x1,%rax
  cmp    %rcx,%r9
  jne    L35
L38:
  ret
L40:
  xor    %eax,%eax
  ret
```

assistant: ```c
unsigned long exclude_interval(unsigned long n, long ex0, long ex1, unsigned long *hf, unsigned long *found) {
  long i, help;
  long lf = 0;
  for (i = 0; i < n; i++) {
    help = hf[i];
    if ((help < ex0) || (help > ex1))
      found[lf++] = help;
  }
  return lf;
}
```
user: 请显示与下面列出的汇编代码相匹配的C语言实现:

```asm
<exclude_interval>:
  endbr64
  test   %rdi,%rdi
  je     L28
  lea    (%rcx,%rdi,8),%r9
  xor    %eax,%eax
  jmp    L31
  nopl   0x0(%rax)
L22:
  add    $0x8,%rcx
  cmp    %rcx,%r9
  je     L49
L31:
  mov    (%rcx),%rdi
  cmp    %rsi,%rdi
  jl     L10
  cmp    %rdx,%rdi
  jle    L22
L10:
  add    $0x8,%rcx
  mov    %rdi,(%r8,%rax,8)
  add    $0x1,%rax
  cmp    %rcx,%r9
  jne    L31
L49:
  ret
L28:
  xor    %eax,%eax
  ret
```

assistant: ```c
unsigned long exclude_interval(unsigned long n, long ex0, long ex1, unsigned long *hf, unsigned long *found) {
  long i, help;
  long lf = 0;
  for (i = 0; i < n; i++) {
    help = hf[i];
    if ((help < ex0) || (help > ex1))
      found[lf++] = help;
  }
  return lf;
}
```
user: 这段汇编代码用C语言表示是什么样的:

```asm
<xstrndup>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x20,%rsp
  mov    %rdi,-0x18(%rbp)
  mov    %rsi,-0x20(%rbp)
  mov    $0x1,%edi
  call   <assert@plt>
  mov    -0x20(%rbp),%rax
  add    $0x1,%rax
  mov    %rax,%rdi
  call   <xmalloc@plt>
  mov    %rax,-0x8(%rbp)
  mov    -0x20(%rbp),%rdx
  mov    -0x18(%rbp),%rcx
  mov    -0x8(%rbp),%rax
  mov    %rcx,%rsi
  mov    %rax,%rdi
  call   <strncpy@plt>
  mov    -0x8(%rbp),%rdx
  mov    -0x20(%rbp),%rax
  add    %rdx,%rax
  movb   $0x0,(%rax)
  mov    -0x8(%rbp),%rax
  leave
  ret
```

assistant: ```c
char *xstrndup(const char *str, size_t maxl) {
  char *new;
  assert(maxl >= 0);
  new = (char *)xmalloc((maxl + 1) * sizeof(char));
  strncpy(new, str, maxl);
  new[maxl] = '\0';
  return new;
}
```
user: Translate the below assembly code into C programming language:

```asm
<xstrndup>:
  endbr64
  push   %r12
  push   %rbp
  push   %rbx
  mov    %rdi,%r12
  mov    %rsi,%rbp
  mov    $0x1,%edi
  call   <assert@plt>
  lea    0x1(%rbp),%rdi
  call   <xmalloc@plt>
  mov    %rax,%rbx
  mov    %rbp,%rdx
  mov    %r12,%rsi
  mov    %rax,%rdi
  call   <strncpy@plt>
  movb   $0x0,(%rbx,%rbp,1)
  mov    %rbx,%rax
  pop    %rbx
  pop    %rbp
  pop    %r12
  ret
```

assistant: ```c
char *xstrndup(const char *str, size_t maxl) {
  char *new;
  assert(maxl >= 0);
  new = (char *)xmalloc((maxl + 1) * sizeof(char));
  strncpy(new, str, maxl);
  new[maxl] = '\0';
  return new;
}
```
user: Translate the below assembly code into C programming language:

```asm
<xstrndup>:
  endbr64
  push   %r12
  push   %rbp
  mov    %rdi,%rbp
  mov    $0x1,%edi
  push   %rbx
  mov    %rsi,%rbx
  call   <assert@plt>
  lea    0x1(%rbx),%rdi
  call   <xmalloc@plt>
  mov    %rbx,%rdx
  mov    %rbp,%rsi
  mov    %rax,%r12
  mov    %rax,%rdi
  call   <strncpy@plt>
  movb   $0x0,(%r12,%rbx,1)
  mov    %r12,%rax
  pop    %rbx
  pop    %rbp
  pop    %r12
  ret
```

assistant: ```c
char *xstrndup(const char *str, size_t maxl) {
  char *new;
  assert(maxl >= 0);
  new = (char *)xmalloc((maxl + 1) * sizeof(char));
  strncpy(new, str, maxl);
  new[maxl] = '\0';
  return new;
}
```
user: What is the c source code of the assembly code below?

```asm
<xstrndup>:
  endbr64
  push   %r12
  push   %rbp
  mov    %rdi,%rbp
  mov    $0x1,%edi
  push   %rbx
  mov    %rsi,%rbx
  call   <assert@plt>
  lea    0x1(%rbx),%rdi
  call   <xmalloc@plt>
  mov    %rbx,%rdx
  mov    %rbp,%rsi
  mov    %rax,%r12
  mov    %rax,%rdi
  call   <strncpy@plt>
  movb   $0x0,(%r12,%rbx,1)
  mov    %r12,%rax
  pop    %rbx
  pop    %rbp
  pop    %r12
  ret
```

assistant: ```c
char *xstrndup(const char *str, size_t maxl) {
  char *new;
  assert(maxl >= 0);
  new = (char *)xmalloc((maxl + 1) * sizeof(char));
  strncpy(new, str, maxl);
  new[maxl] = '\0';
  return new;
}
```
user: 请显示与下面列出的汇编代码相匹配的C语言实现：

```asm
<main>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x20,%rsp
  mov    %edi,-0x14(%rbp)
  mov    %rsi,-0x20(%rbp)
  movl   $0x0,-0x4(%rbp)
  jmp    L2
L18:
  mov    -0x4(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x20(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%rax
  mov    %rax,%rsi
  lea    D8(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
  addl   $0x1,-0x4(%rbp)
L2:
  mov    -0x4(%rbp),%eax
  cmp    -0x14(%rbp),%eax
  jl     L18
  mov    $0x0,%eax
  leave
  ret
```

tool_calls: name: extract_symbolic_data
arguments: tag: D8
type: string

tool: D8: %s


assistant: ```c
int main(int argc, char **argv) {
  int i;
  for (i = 0; i < argc; ++i)
    printf("%s\n", argv[i]);
  return 0;
}
```
user: 请从给定的汇编指令推导出C源代码:

```asm
<main>:
  endbr64
  test   %edi,%edi
  jle    L14
  push   %r12
  push   %rbp
  push   %rbx
  mov    %rsi,%rbx
  lea    -0x1(%rdi),%eax
  lea    0x8(%rsi,%rax,8),%r12
  lea    D7(%rip),%rbp
L19:
  mov    (%rbx),%rsi
  mov    %rbp,%rdi
  call   <printf@plt>
  add    $0x8,%rbx
  cmp    %r12,%rbx
  jne    L19
  mov    $0x0,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  ret
L14:
  mov    $0x0,%eax
  ret
```

tool_calls: name: retrieve_data
arguments: data_tag: D7
type_infered: string

tool: D7: %s


assistant: ```c
int main(int argc, char **argv) {
  int i;
  for (i = 0; i < argc; ++i)
    printf("%s\n", argv[i]);
  return 0;
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<main>:
  endbr64
  test   %edi,%edi
  jle    L18
  lea    -0x1(%rdi),%eax
  push   %r12
  lea    0x8(%rsi,%rax,8),%r12
  push   %rbp
  lea    D7(%rip),%rbp
  push   %rbx
  mov    %rsi,%rbx
  xchg   %ax,%ax
L15:
  mov    (%rbx),%rsi
  mov    %rbp,%rdi
  add    $0x8,%rbx
  call   <printf@plt>
  cmp    %r12,%rbx
  jne    L15
  pop    %rbx
  xor    %eax,%eax
  pop    %rbp
  pop    %r12
  ret
L18:
  xor    %eax,%eax
  ret
```

tool_calls: name: extract_symbolic_data
arguments: label: D7
type: string

tool: D7: %s


assistant: ```c
int main(int argc, char **argv) {
  int i;
  for (i = 0; i < argc; ++i)
    printf("%s\n", argv[i]);
  return 0;
}
```
user: 请将以下的汇编代码转换成C语言代码:

```asm
<main>:
  endbr64
  test   %edi,%edi
  jle    L1
  lea    -0x1(%rdi),%eax
  push   %r12
  lea    0x8(%rsi,%rax,8),%r12
  push   %rbp
  lea    D4(%rip),%rbp
  push   %rbx
  mov    %rsi,%rbx
  xchg   %ax,%ax
L3:
  mov    (%rbx),%rsi
  mov    %rbp,%rdi
  add    $0x8,%rbx
  call   <printf@plt>
  cmp    %r12,%rbx
  jne    L3
  pop    %rbx
  xor    %eax,%eax
  pop    %rbp
  pop    %r12
  ret
L1:
  xor    %eax,%eax
  ret
```

tool_calls: name: unpack_data
arguments: tag: D4
type_infered: string

tool: D4: %s


assistant: ```c
int main(int argc, char **argv) {
  int i;
  for (i = 0; i < argc; ++i)
    printf("%s\n", argv[i]);
  return 0;
}
```
user: 请将这段汇编代码片段转换成等效的C代码：

```asm
<timer>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x30,%rsp
  mov    %edi,-0x24(%rbp)
  mov    %esi,-0x28(%rbp)
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
  lea    -0x20(%rbp),%rax
  mov    $0x0,%esi
  mov    %rax,%rdi
  call   <gettimeofday@plt>
  cmpl   $0x0,-0x28(%rbp)
  je     L23
  mov    -0x24(%rbp),%eax
  lea    D47(%rip),%rdx
  lea    D10(%rip),%rcx
  mov    %rcx,%rsi
  mov    %eax,%edi
  call   <vis5d_get_display_timer@plt>
  mov    -0x20(%rbp),%rax
  mov    D10(%rip),%rdx
  sub    %rdx,%rax
  imul   $0xf4240,%rax,%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  mov    D47(%rip),%rdx
  sub    %rdx,%rax
  mov    %rax,D49(%rip)
  mov    D49(%rip),%rcx
  movabs $0x20c49ba5e353f7cf,%rdx
  mov    %rcx,%rax
  imul   %rdx
  mov    %rdx,%rax
  sar    $0x7,%rax
  sar    $0x3f,%rcx
  mov    %rcx,%rdx
  sub    %rdx,%rax
  jmp    L17
L23:
  mov    -0x24(%rbp),%eax
  mov    %eax,%edi
  call   <vis5d_reset_display_timer@plt>
  mov    $0x0,%eax
L17:
  mov    -0x8(%rbp),%rdx
  sub    %fs:0x28,%rdx
  je     L6
  call   <__stack_chk_fail@plt>
L6:
  leave
  ret
```

assistant: ```c
int timer(int index, int flag) {
  struct timeval tp;
  static long start_usec, start_sec, lapsed_usec;
  gettimeofday(&tp, (struct timezone *)0);
  if (flag) {
    vis5d_get_display_timer(index, &start_sec, &start_usec);
    lapsed_usec = ((tp.tv_sec - start_sec) * 1000000) + tp.tv_usec - start_usec;
    return lapsed_usec / 1000;
  } else {
    vis5d_reset_display_timer(index);
    return 0;
  }
}
```
user: 请将以下的汇编代码转换成C语言代码:

```asm
<timer>:
  endbr64
  push   %rbp
  push   %rbx
  sub    $0x28,%rsp
  mov    %edi,%ebp
  mov    %esi,%ebx
  mov    %fs:0x28,%rax
  mov    %rax,0x18(%rsp)
  xor    %eax,%eax
  mov    %rsp,%rdi
  mov    $0x0,%esi
  call   <gettimeofday@plt>
  test   %ebx,%ebx
  je     L9
  lea    D9(%rip),%rdx
  lea    D35(%rip),%rsi
  mov    %ebp,%edi
  call   <vis5d_get_display_timer@plt>
  mov    (%rsp),%rcx
  sub    D35(%rip),%rcx
  imul   $0xf4240,%rcx,%rcx
  add    0x8(%rsp),%rcx
  sub    D9(%rip),%rcx
  movabs $0x20c49ba5e353f7cf,%rdx
  mov    %rcx,%rax
  imul   %rdx
  mov    %rdx,%rax
  sar    $0x7,%rax
  sar    $0x3f,%rcx
  sub    %ecx,%eax
L22:
  mov    0x18(%rsp),%rdx
  sub    %fs:0x28,%rdx
  jne    L26
  add    $0x28,%rsp
  pop    %rbx
  pop    %rbp
  ret
L9:
  mov    %ebp,%edi
  call   <vis5d_reset_display_timer@plt>
  mov    %ebx,%eax
  jmp    L22
L26:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
int timer(int index, int flag) {
  struct timeval tp;
  static long start_usec, start_sec, lapsed_usec;
  gettimeofday(&tp, (struct timezone *)0);
  if (flag) {
    vis5d_get_display_timer(index, &start_sec, &start_usec);
    lapsed_usec = ((tp.tv_sec - start_sec) * 1000000) + tp.tv_usec - start_usec;
    return lapsed_usec / 1000;
  } else {
    vis5d_reset_display_timer(index);
    return 0;
  }
}
```
user: 提供的汇编代码用C语言表示会是什么样子：

```asm
<timer>:
  endbr64
  push   %rbp
  mov    %edi,%ebp
  push   %rbx
  mov    %esi,%ebx
  xor    %esi,%esi
  sub    $0x28,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x18(%rsp)
  xor    %eax,%eax
  mov    %rsp,%rdi
  call   <gettimeofday@plt>
  test   %ebx,%ebx
  je     L18
  lea    D16(%rip),%rdx
  lea    D39(%rip),%rsi
  mov    %ebp,%edi
  call   <vis5d_get_display_timer@plt>
  mov    (%rsp),%rcx
  sub    D39(%rip),%rcx
  movabs $0x20c49ba5e353f7cf,%rdx
  imul   $0xf4240,%rcx,%rcx
  add    0x8(%rsp),%rcx
  sub    D16(%rip),%rcx
  mov    %rcx,%rax
  sar    $0x3f,%rcx
  imul   %rdx
  mov    %rdx,%rax
  sar    $0x7,%rax
  sub    %ecx,%eax
L5:
  mov    0x18(%rsp),%rdx
  sub    %fs:0x28,%rdx
  jne    L29
  add    $0x28,%rsp
  pop    %rbx
  pop    %rbp
  ret
  nopl   0x0(%rax,%rax,1)
L18:
  mov    %ebp,%edi
  call   <vis5d_reset_display_timer@plt>
  xor    %eax,%eax
  jmp    L5
L29:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
int timer(int index, int flag) {
  struct timeval tp;
  static long start_usec, start_sec, lapsed_usec;
  gettimeofday(&tp, (struct timezone *)0);
  if (flag) {
    vis5d_get_display_timer(index, &start_sec, &start_usec);
    lapsed_usec = ((tp.tv_sec - start_sec) * 1000000) + tp.tv_usec - start_usec;
    return lapsed_usec / 1000;
  } else {
    vis5d_reset_display_timer(index);
    return 0;
  }
}
```
user: Translate the below assembly code into C programming language:

```asm
<timer>:
  endbr64
  push   %rbp
  mov    %edi,%ebp
  push   %rbx
  mov    %esi,%ebx
  xor    %esi,%esi
  sub    $0x28,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x18(%rsp)
  xor    %eax,%eax
  mov    %rsp,%rdi
  call   <gettimeofday@plt>
  test   %ebx,%ebx
  je     L17
  lea    D12(%rip),%rdx
  lea    D32(%rip),%rsi
  mov    %ebp,%edi
  call   <vis5d_get_display_timer@plt>
  mov    (%rsp),%rcx
  sub    D32(%rip),%rcx
  movabs $0x20c49ba5e353f7cf,%rdx
  imul   $0xf4240,%rcx,%rcx
  add    0x8(%rsp),%rcx
  sub    D12(%rip),%rcx
  mov    %rcx,%rax
  sar    $0x3f,%rcx
  imul   %rdx
  mov    %rdx,%rax
  sar    $0x7,%rax
  sub    %ecx,%eax
L15:
  mov    0x18(%rsp),%rdx
  sub    %fs:0x28,%rdx
  jne    L10
  add    $0x28,%rsp
  pop    %rbx
  pop    %rbp
  ret
  nopl   0x0(%rax,%rax,1)
L17:
  mov    %ebp,%edi
  call   <vis5d_reset_display_timer@plt>
  xor    %eax,%eax
  jmp    L15
L10:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
int timer(int index, int flag) {
  struct timeval tp;
  static long start_usec, start_sec, lapsed_usec;
  gettimeofday(&tp, (struct timezone *)0);
  if (flag) {
    vis5d_get_display_timer(index, &start_sec, &start_usec);
    lapsed_usec = ((tp.tv_sec - start_sec) * 1000000) + tp.tv_usec - start_usec;
    return lapsed_usec / 1000;
  } else {
    vis5d_reset_display_timer(index);
    return 0;
  }
}
```
user: What would the C source look like for the assembly code provided here?

```asm
<xzalloc>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x20,%rsp
  mov    %rdi,-0x18(%rbp)
  mov    -0x18(%rbp),%rax
  mov    %rax,%rdi
  call   <xmalloc@plt>
  mov    %rax,-0x8(%rbp)
  mov    -0x18(%rbp),%rdx
  mov    -0x8(%rbp),%rax
  mov    $0x0,%esi
  mov    %rax,%rdi
  call   <memset@plt>
  mov    -0x8(%rbp),%rax
  leave
  ret
```

assistant: ```c
void *xzalloc(size_t size) {
  void *p = xmalloc(size);
  memset(p, 0, size);
  return p;
}
```
user: 请将以下的汇编代码转换成C语言代码:

```asm
<xzalloc>:
  endbr64
  push   %rbp
  push   %rbx
  sub    $0x8,%rsp
  mov    %rdi,%rbp
  call   <xmalloc@plt>
  mov    %rax,%rbx
  mov    %rbp,%rdx
  mov    $0x0,%esi
  mov    %rax,%rdi
  call   <memset@plt>
  mov    %rbx,%rax
  add    $0x8,%rsp
  pop    %rbx
  pop    %rbp
  ret
```

assistant: ```c
void *xzalloc(size_t size) {
  void *p = xmalloc(size);
  memset(p, 0, size);
  return p;
}
```
user: Translate the below assembly code into C programming language:

```asm
<xzalloc>:
  endbr64
  push   %r13
  mov    %rdi,%r13
  push   %r12
  sub    $0x8,%rsp
  call   <xmalloc@plt>
  mov    %r13,%rdx
  xor    %esi,%esi
  mov    %rax,%rdi
  mov    %rax,%r12
  call   <memset@plt>
  add    $0x8,%rsp
  mov    %r12,%rax
  pop    %r12
  pop    %r13
  ret
```

assistant: ```c
void *xzalloc(size_t size) {
  void *p = xmalloc(size);
  memset(p, 0, size);
  return p;
}
```
user: 请将以下的汇编代码转换成C语言代码:

```asm
<xzalloc>:
  endbr64
  push   %r13
  mov    %rdi,%r13
  push   %r12
  sub    $0x8,%rsp
  call   <xmalloc@plt>
  mov    %r13,%rdx
  xor    %esi,%esi
  mov    %rax,%rdi
  mov    %rax,%r12
  call   <memset@plt>
  add    $0x8,%rsp
  mov    %r12,%rax
  pop    %r12
  pop    %r13
  ret
```

assistant: ```c
void *xzalloc(size_t size) {
  void *p = xmalloc(size);
  memset(p, 0, size);
  return p;
}
```
user: Demonstrate the C code that generates the assembly output below:

```asm
<strncpy>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    %rdi,-0x18(%rbp)
  mov    %rsi,-0x20(%rbp)
  mov    %rdx,-0x28(%rbp)
  movq   $0x0,-0x8(%rbp)
  jmp    L33
L28:
  mov    -0x20(%rbp),%rdx
  mov    -0x8(%rbp),%rax
  add    %rdx,%rax
  mov    -0x18(%rbp),%rcx
  mov    -0x8(%rbp),%rdx
  add    %rcx,%rdx
  movzbl (%rax),%eax
  mov    %al,(%rdx)
  addq   $0x1,-0x8(%rbp)
L33:
  mov    -0x8(%rbp),%rax
  cmp    -0x28(%rbp),%rax
  jae    L37
  mov    -0x20(%rbp),%rdx
  mov    -0x8(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  test   %al,%al
  jne    L28
  jmp    L37
L10:
  mov    -0x18(%rbp),%rdx
  mov    -0x8(%rbp),%rax
  add    %rdx,%rax
  movb   $0x0,(%rax)
  addq   $0x1,-0x8(%rbp)
L37:
  mov    -0x8(%rbp),%rax
  cmp    -0x28(%rbp),%rax
  jb     L10
  mov    -0x18(%rbp),%rax
  pop    %rbp
  ret
```

assistant: ```c
char *strncpy(char *restrict dest, const char *restrict src, size_t n) {
  size_t i;
  for (i = 0; i < n && src[i] != '\0'; i++) {
    dest[i] = src[i];
  }
  for (; i < n; i++)
    dest[i] = '\0';
  return dest;
}
```
user: Translate the below assembly code into C programming language:

```asm
<strncpy>:
  endbr64
  mov    %rdi,%rax
  mov    $0x0,%ecx
  test   %rdx,%rdx
  je     L19
L16:
  movzbl (%rsi,%rcx,1),%r8d
  test   %r8b,%r8b
  je     L30
  mov    %r8b,(%rax,%rcx,1)
  add    $0x1,%rcx
  cmp    %rcx,%rdx
  jne    L16
  ret
L19:
  ret
L30:
  cmp    %rcx,%rdx
  jbe    L33
  add    %rax,%rcx
  add    %rax,%rdx
L44:
  movb   $0x0,(%rcx)
  add    $0x1,%rcx
  cmp    %rdx,%rcx
  jne    L44
  ret
L33:
  ret
```

assistant: ```c
char *strncpy(char *restrict dest, const char *restrict src, size_t n) {
  size_t i;
  for (i = 0; i < n && src[i] != '\0'; i++) {
    dest[i] = src[i];
  }
  for (; i < n; i++)
    dest[i] = '\0';
  return dest;
}
```
user: Translate the below assembly code into C programming language:

```asm
<strncpy>:
  endbr64
  push   %r12
  mov    %rdi,%r12
  xor    %edi,%edi
  test   %rdx,%rdx
  jne    L18
  jmp    L31
  nopw   0x0(%rax,%rax,1)
L43:
  mov    %al,(%r12,%rdi,1)
  add    $0x1,%rdi
  cmp    %rdi,%rdx
  je     L31
L18:
  movzbl (%rsi,%rdi,1),%eax
  test   %al,%al
  jne    L43
  cmp    %rdi,%rdx
  jbe    L31
  sub    %rdi,%rdx
  xor    %esi,%esi
  add    %r12,%rdi
  call   <memset@plt>
L31:
  mov    %r12,%rax
  pop    %r12
  ret
```

assistant: ```c
char *strncpy(char *restrict dest, const char *restrict src, size_t n) {
  size_t i;
  for (i = 0; i < n && src[i] != '\0'; i++) {
    dest[i] = src[i];
  }
  for (; i < n; i++)
    dest[i] = '\0';
  return dest;
}
```
user: What is the c source code of the assembly code below:

```asm
<strncpy>:
  endbr64
  push   %r12
  mov    %rdi,%r12
  xor    %edi,%edi
  test   %rdx,%rdx
  jne    L16
  jmp    L21
  nopw   0x0(%rax,%rax,1)
L32:
  mov    %al,(%r12,%rdi,1)
  add    $0x1,%rdi
  cmp    %rdi,%rdx
  je     L21
L16:
  movzbl (%rsi,%rdi,1),%eax
  test   %al,%al
  jne    L32
  cmp    %rdi,%rdx
  jbe    L21
  sub    %rdi,%rdx
  xor    %esi,%esi
  add    %r12,%rdi
  call   <memset@plt>
L21:
  mov    %r12,%rax
  pop    %r12
  ret
```

assistant: ```c
char *strncpy(char *restrict dest, const char *restrict src, size_t n) {
  size_t i;
  for (i = 0; i < n && src[i] != '\0'; i++) {
    dest[i] = src[i];
  }
  for (; i < n; i++)
    dest[i] = '\0';
  return dest;
}
```
user: 请显示与下面列出的汇编代码相匹配的C语言实现：

```asm
<lms_rand>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    D29(%rip),%rax
  imul   $0x41c64e6d,%rax,%rax
  add    $0x3039,%rax
  mov    %rax,D25(%rip)
  mov    D25(%rip),%rax
  shr    $0x10,%rax
  and    $0x7fff,%eax
  pop    %rbp
  ret
```

assistant: ```c
int lms_rand() {
  static unsigned long next = 1;
  next = next * 1103515245 + 12345;
  return (unsigned int)(next / 65536) % 32768;
}
```
user: 请显示与下面列出的汇编代码相匹配的C语言实现：

```asm
<lms_rand>:
  endbr64
  imul   $0x41c64e6d,0x2f18(%rip),%rax        # 4020 <next.0>
  add    $0x3039,%rax
  mov    %rax,D2(%rip)
  shr    $0x10,%rax
  and    $0x7fff,%eax
  ret
```

assistant: ```c
int lms_rand() {
  static unsigned long next = 1;
  next = next * 1103515245 + 12345;
  return (unsigned int)(next / 65536) % 32768;
}
```
user: 请从给定的汇编指令推导出C源代码：

```asm
<lms_rand>:
  endbr64
  imul   $0x41c64e6d,0x2f11(%rip),%rax        # 4020 <next.0>
  add    $0x3039,%rax
  mov    %rax,D8(%rip)
  shr    $0x10,%rax
  and    $0x7fff,%eax
  ret
```

assistant: ```c
int lms_rand() {
  static unsigned long next = 1;
  next = next * 1103515245 + 12345;
  return (unsigned int)(next / 65536) % 32768;
}
```
user: 请从给定的汇编指令推导出C源代码:

```asm
<lms_rand>:
  endbr64
  imul   $0x41c64e6d,0x2f11(%rip),%rax        # 4020 <next.0>
  add    $0x3039,%rax
  mov    %rax,D7(%rip)
  shr    $0x10,%rax
  and    $0x7fff,%eax
  ret
```

assistant: ```c
int lms_rand() {
  static unsigned long next = 1;
  next = next * 1103515245 + 12345;
  return (unsigned int)(next / 65536) % 32768;
}
```
user: 提供的汇编代码用C语言表示会是什么样子:

```asm
<permAlphaChar>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  push   %rbx
  sub    $0x58,%rsp
  mov    %rdi,-0x58(%rbp)
  mov    %esi,-0x5c(%rbp)
  mov    %fs:0x28,%rax
  mov    %rax,-0x18(%rbp)
  xor    %eax,%eax
  movabs $0x6867666564636261,%rax
  movabs $0x706f6e6d6c6b6a69,%rdx
  mov    %rax,-0x40(%rbp)
  mov    %rdx,-0x38(%rbp)
  movabs $0x7877767574737271,%rax
  mov    %rax,-0x30(%rbp)
  movw   $0x7a79,-0x28(%rbp)
  mov    -0x58(%rbp),%rax
  mov    %rax,%rdi
  call   <stringLength@plt>
  mov    %eax,-0x44(%rbp)
  movl   $0x0,-0x4c(%rbp)
  jmp    L40
L22:
  movl   $0x0,-0x48(%rbp)
  jmp    L70
L32:
  mov    -0x4c(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x58(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%edx
  mov    -0x48(%rbp),%eax
  cltq
  movzbl -0x40(%rbp,%rax,1),%eax
  cmp    %al,%dl
  jne    L26
  mov    -0x48(%rbp),%edx
  mov    -0x5c(%rbp),%eax
  add    %eax,%edx
  movslq %edx,%rax
  imul   $0x4ec4ec4f,%rax,%rax
  shr    $0x20,%rax
  sar    $0x3,%eax
  mov    %edx,%ecx
  sar    $0x1f,%ecx
  sub    %ecx,%eax
  imul   $0x1a,%eax,%ecx
  mov    %edx,%eax
  sub    %ecx,%eax
  mov    -0x4c(%rbp),%edx
  movslq %edx,%rcx
  mov    -0x58(%rbp),%rdx
  add    %rcx,%rdx
  cltq
  movzbl -0x40(%rbp,%rax,1),%eax
  mov    %al,(%rdx)
  jmp    L11
L26:
  mov    -0x4c(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x58(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%ebx
  mov    -0x48(%rbp),%eax
  cltq
  movzbl -0x40(%rbp,%rax,1),%eax
  movsbl %al,%eax
  mov    %eax,%edi
  call   <toupper@plt>
  cmp    %al,%bl
  jne    L20
  mov    -0x48(%rbp),%edx
  mov    -0x5c(%rbp),%eax
  add    %eax,%edx
  movslq %edx,%rax
  imul   $0x4ec4ec4f,%rax,%rax
  shr    $0x20,%rax
  sar    $0x3,%eax
  mov    %edx,%ecx
  sar    $0x1f,%ecx
  sub    %ecx,%eax
  imul   $0x1a,%eax,%ecx
  mov    %edx,%eax
  sub    %ecx,%eax
  cltq
  movzbl -0x40(%rbp,%rax,1),%eax
  movsbl %al,%eax
  mov    -0x4c(%rbp),%edx
  movslq %edx,%rcx
  mov    -0x58(%rbp),%rdx
  lea    (%rcx,%rdx,1),%rbx
  mov    %eax,%edi
  call   <toupper@plt>
  mov    %al,(%rbx)
  jmp    L11
L20:
  addl   $0x1,-0x48(%rbp)
L70:
  cmpl   $0x19,-0x48(%rbp)
  jle    L32
L11:
  addl   $0x1,-0x4c(%rbp)
L40:
  mov    -0x4c(%rbp),%eax
  cmp    -0x44(%rbp),%eax
  jl     L22
  nop
  mov    -0x18(%rbp),%rax
  sub    %fs:0x28,%rax
  je     L25
  call   <__stack_chk_fail@plt>
L25:
  mov    -0x8(%rbp),%rbx
  leave
  ret
```

assistant: ```c
void permAlphaChar(char *str, int key) {
  char alphabet[26] = "abcdefghijklmnopqrstuvwxyz";
  int str_length = stringLength(str);
  for (int i = 0; i < str_length; i++) {
    for (int j = 0; j < 26; j++) {
      if (str[i] == alphabet[j]) {
        str[i] = alphabet[(j + key) % 26];
        break;
      } else if (str[i] == toupper(alphabet[j])) {
        str[i] = toupper(alphabet[(j + key) % 26]);
        break;
      }
    }
  }
}
```