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
<random_str>:
  endbr64
  test   %rdi,%rdi
  je     L13
  push   %r13
  mov    %esi,%r13d
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x8,%rsp
  test   %esi,%esi
  je     L2
  xor    %eax,%eax
  mov    %rdi,%r12
  call   <_time_counter@plt>
  mov    %eax,%edi
  call   <srand@plt>
  movslq %r13d,%rax
  test   %r13d,%r13d
  js     L36
  movslq %r13d,%rbp
  mov    %r13d,%esi
  add    %r12,%rbp
  lea    -0x1(%rbp),%rbx
  mov    %rbx,%r13
  sub    %rsi,%r13
  jmp    L52
  nopl   0x0(%rax)
L25:
  call   <rand@plt>
  movslq %eax,%rdx
  mov    %eax,%ecx
  imul   $0x51eb851f,%rdx,%rdx
  sar    $0x1f,%ecx
  sar    $0x23,%rdx
  sub    %ecx,%edx
  lea    (%rdx,%rdx,4),%edx
  lea    (%rdx,%rdx,4),%edx
  sub    %edx,%eax
  add    $0x61,%eax
  mov    %al,0x0(%rbp)
  mov    %rbx,%rbp
  cmp    %r13,%rbx
  je     L44
L67:
  sub    $0x1,%rbx
L52:
  xor    %eax,%eax
  call   <rand@plt>
  test   $0x1,%al
  mov    $0x0,%eax
  jne    L25
  call   <rand@plt>
  movslq %eax,%rdx
  mov    %eax,%ecx
  imul   $0x66666667,%rdx,%rdx
  sar    $0x1f,%ecx
  sar    $0x22,%rdx
  sub    %ecx,%edx
  lea    (%rdx,%rdx,4),%edx
  add    %edx,%edx
  sub    %edx,%eax
  add    $0x30,%eax
  mov    %al,0x0(%rbp)
  mov    %rbx,%rbp
  cmp    %r13,%rbx
  jne    L67
L44:
  mov    $0xffffffffffffffff,%rax
L36:
  movb   $0x0,(%r12,%rax,1)
L2:
  add    $0x8,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
  nopw   0x0(%rax,%rax,1)
L13:
  ret
```

assistant: ```c
void random_str(char *str, unsigned len) {
  if (!str || len <= 0)
    return;
  srand(_time_counter());
  register int i;
  for (i = len; i >= 0; --i) {
    if (rand() % 2)
      str[i] = (rand() % 25) + 97;
    else
      str[i] = (rand() % 10) + 48;
  }
  str[i] = '\0';
}
```
user: 请从给定的汇编指令推导出C源代码：

```asm
<random_str>:
  endbr64
  test   %rdi,%rdi
  je     L61
  push   %r13
  mov    %esi,%r13d
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x8,%rsp
  test   %esi,%esi
  je     L21
  xor    %eax,%eax
  mov    %rdi,%r12
  call   <_time_counter@plt>
  mov    %eax,%edi
  call   <srand@plt>
  movslq %r13d,%rax
  test   %r13d,%r13d
  js     L36
  movslq %r13d,%rbp
  mov    %r13d,%esi
  add    %r12,%rbp
  lea    -0x1(%rbp),%rbx
  mov    %rbx,%r13
  sub    %rsi,%r13
  jmp    L17
  nopl   0x0(%rax)
L25:
  call   <rand@plt>
  movslq %eax,%rdx
  mov    %eax,%ecx
  imul   $0x51eb851f,%rdx,%rdx
  sar    $0x1f,%ecx
  sar    $0x23,%rdx
  sub    %ecx,%edx
  lea    (%rdx,%rdx,4),%edx
  lea    (%rdx,%rdx,4),%edx
  sub    %edx,%eax
  add    $0x61,%eax
  mov    %al,0x0(%rbp)
  mov    %rbx,%rbp
  cmp    %rbx,%r13
  je     L14
L62:
  sub    $0x1,%rbx
L17:
  xor    %eax,%eax
  call   <rand@plt>
  test   $0x1,%al
  mov    $0x0,%eax
  jne    L25
  call   <rand@plt>
  movslq %eax,%rdx
  mov    %eax,%ecx
  imul   $0x66666667,%rdx,%rdx
  sar    $0x1f,%ecx
  sar    $0x22,%rdx
  sub    %ecx,%edx
  lea    (%rdx,%rdx,4),%edx
  add    %edx,%edx
  sub    %edx,%eax
  add    $0x30,%eax
  mov    %al,0x0(%rbp)
  mov    %rbx,%rbp
  cmp    %r13,%rbx
  jne    L62
L14:
  mov    $0xffffffffffffffff,%rax
L36:
  movb   $0x0,(%r12,%rax,1)
L21:
  add    $0x8,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
  nopw   0x0(%rax,%rax,1)
L61:
  ret
```

assistant: ```c
void random_str(char *str, unsigned len) {
  if (!str || len <= 0)
    return;
  srand(_time_counter());
  register int i;
  for (i = len; i >= 0; --i) {
    if (rand() % 2)
      str[i] = (rand() % 25) + 97;
    else
      str[i] = (rand() % 10) + 48;
  }
  str[i] = '\0';
}
```
user: 请将以下的汇编代码转换成C语言代码：

```asm
<piece_colour>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x10,%rsp
  mov    %edi,-0x4(%rbp)
  mov    -0x4(%rbp),%eax
  mov    %eax,%edi
  call   <piece_is_ok@plt>
  test   %eax,%eax
  jne    L5
  mov    $0x4f,%edx
  lea    D4(%rip),%rax
  mov    %rax,%rsi
  lea    D17(%rip),%rax
  mov    %rax,%rdi
  call   <my_fatal@plt>
L5:
  mov    -0x4(%rbp),%eax
  and    $0x3,%eax
  leave
  ret
```

tool_calls: name: retrieve_data
arguments: data_tag: D4
datatype: string
name: retrieve_data
arguments: data_tag: D17
datatype: string

tool: D4: /scratch/repos/new/home/jordi_armengol_estape/c-scraper/outputs/2022-01-22/02-19-57/repos/ddugovic/polyglot/refs/heads/master/piece.c

tool: D17: file "%s", line %d, assertion "piece_is_ok(piece)" failed


assistant: ```c
int piece_colour(int piece) {
  {
    if (!(piece_is_ok(piece)))
      my_fatal("file \"%s\", line %d, assertion \""
               "piece_is_ok(piece)"
               "\" failed\n",
               "/scratch/repos/new/home/jordi_armengol_estape/c-scraper/outputs/2022-01-22/02-19-57/repos/ddugovic/polyglot/refs/heads/master/piece.c", 79);
  };
  return piece & 3;
}
```
user: What is the c source code of the assembly code below?

```asm
<piece_colour>:
  endbr64
  push   %rbx
  mov    %edi,%ebx
  call   <piece_is_ok@plt>
  test   %eax,%eax
  je     L15
L18:
  mov    %ebx,%eax
  and    $0x3,%eax
  pop    %rbx
  ret
L15:
  mov    $0x4f,%edx
  lea    D9(%rip),%rsi
  lea    D18(%rip),%rdi
  call   <my_fatal@plt>
  jmp    L18
```

tool_calls: name: retrieve_data
arguments: label: D9
type_guessed: string
name: retrieve_data
arguments: label: D18
type_guessed: string

tool: D9: /scratch/repos/new/home/jordi_armengol_estape/c-scraper/outputs/2022-01-22/02-19-57/repos/ddugovic/polyglot/refs/heads/master/piece.c

tool: D18: file "%s", line %d, assertion "piece_is_ok(piece)" failed


assistant: ```c
int piece_colour(int piece) {
  {
    if (!(piece_is_ok(piece)))
      my_fatal("file \"%s\", line %d, assertion \""
               "piece_is_ok(piece)"
               "\" failed\n",
               "/scratch/repos/new/home/jordi_armengol_estape/c-scraper/outputs/2022-01-22/02-19-57/repos/ddugovic/polyglot/refs/heads/master/piece.c", 79);
  };
  return piece & 3;
}
```
user: Please show me the C implementation that matches the assembly code listed below:

```asm
<piece_colour>:
  endbr64
  push   %rbx
  mov    %edi,%ebx
  call   <piece_is_ok@plt>
  test   %eax,%eax
  je     L8
  mov    %ebx,%eax
  pop    %rbx
  and    $0x3,%eax
  ret
  nopw   0x0(%rax,%rax,1)
L8:
  mov    $0x4f,%edx
  lea    D13(%rip),%rsi
  lea    D6(%rip),%rdi
  call   <my_fatal@plt>
  mov    %ebx,%eax
  pop    %rbx
  and    $0x3,%eax
  ret
```

tool_calls: name: retrieve_data
arguments: label: D13
type_guessed: string
name: retrieve_data
arguments: label: D6
type_guessed: string

tool: D13: /scratch/repos/new/home/jordi_armengol_estape/c-scraper/outputs/2022-01-22/02-19-57/repos/ddugovic/polyglot/refs/heads/master/piece.c

tool: D6: file "%s", line %d, assertion "piece_is_ok(piece)" failed


assistant: ```c
int piece_colour(int piece) {
  {
    if (!(piece_is_ok(piece)))
      my_fatal("file \"%s\", line %d, assertion \""
               "piece_is_ok(piece)"
               "\" failed\n",
               "/scratch/repos/new/home/jordi_armengol_estape/c-scraper/outputs/2022-01-22/02-19-57/repos/ddugovic/polyglot/refs/heads/master/piece.c", 79);
  };
  return piece & 3;
}
```
user: What would the C source look like for the assembly code provided here:

```asm
<piece_colour>:
  endbr64
  push   %rbx
  mov    %edi,%ebx
  call   <piece_is_ok@plt>
  test   %eax,%eax
  je     L0
  mov    %ebx,%eax
  pop    %rbx
  and    $0x3,%eax
  ret
  nopw   0x0(%rax,%rax,1)
L0:
  mov    $0x4f,%edx
  lea    D11(%rip),%rsi
  lea    D2(%rip),%rdi
  call   <my_fatal@plt>
  mov    %ebx,%eax
  pop    %rbx
  and    $0x3,%eax
  ret
```

tool_calls: name: disassemble_data
arguments: data_tag: D11
data_type: string
name: disassemble_data
arguments: data_tag: D2
data_type: string

tool: D11: /scratch/repos/new/home/jordi_armengol_estape/c-scraper/outputs/2022-01-22/02-19-57/repos/ddugovic/polyglot/refs/heads/master/piece.c

tool: D2: file "%s", line %d, assertion "piece_is_ok(piece)" failed


assistant: ```c
int piece_colour(int piece) {
  {
    if (!(piece_is_ok(piece)))
      my_fatal("file \"%s\", line %d, assertion \""
               "piece_is_ok(piece)"
               "\" failed\n",
               "/scratch/repos/new/home/jordi_armengol_estape/c-scraper/outputs/2022-01-22/02-19-57/repos/ddugovic/polyglot/refs/heads/master/piece.c", 79);
  };
  return piece & 3;
}
```
user: 这段汇编代码用C语言表示是什么样的?

```asm
<write_in_full>:
  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,-0x18(%rbp)
  movq   $0x0,-0x10(%rbp)
  jmp    L42
L57:
  mov    -0x38(%rbp),%rdx
  mov    -0x18(%rbp),%rcx
  mov    -0x24(%rbp),%eax
  mov    %rcx,%rsi
  mov    %eax,%edi
  call   <xwrite@plt>
  mov    %rax,-0x8(%rbp)
  cmpq   $0x0,-0x8(%rbp)
  jns    L48
  mov    $0xffffffffffffffff,%rax
  jmp    L41
L48:
  cmpq   $0x0,-0x8(%rbp)
  jne    L13
  mov    D8(%rip),%rax
  mov    (%rax),%edx
  mov    D2(%rip),%rax
  mov    %edx,(%rax)
  mov    $0xffffffffffffffff,%rax
  jmp    L41
L13:
  mov    -0x8(%rbp),%rax
  sub    %rax,-0x38(%rbp)
  mov    -0x8(%rbp),%rax
  add    %rax,-0x18(%rbp)
  mov    -0x8(%rbp),%rax
  add    %rax,-0x10(%rbp)
L42:
  cmpq   $0x0,-0x38(%rbp)
  jne    L57
  mov    -0x10(%rbp),%rax
L41:
  leave
  ret
```

assistant: ```c
ssize_t write_in_full(int fd, const void *buf, size_t count) {
  const char *p = buf;
  ssize_t total = 0;
  while (count > 0) {
    ssize_t written = xwrite(fd, p, count);
    if (written < 0)
      return -1;
    if (!written) {
      errno = ENOSPC;
      return -1;
    }
    count -= written;
    p += written;
    total += written;
  }
  return total;
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<write_in_full>:
  endbr64
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x8,%rsp
  test   %rdx,%rdx
  je     L40
  mov    %edi,%r12d
  mov    %rsi,%rbp
  mov    %rdx,%rbx
  mov    $0x0,%r13d
L9:
  mov    %rbx,%rdx
  mov    %rbp,%rsi
  mov    %r12d,%edi
  call   <xwrite@plt>
  test   %rax,%rax
  js     L23
  je     L45
  add    %rax,%rbp
  add    %rax,%r13
  sub    %rax,%rbx
  jne    L9
  jmp    L0
L45:
  mov    D15(%rip),%rax
  mov    (%rax),%edx
  mov    D5(%rip),%rax
  mov    %edx,(%rax)
  mov    $0xffffffffffffffff,%r13
  jmp    L0
L40:
  mov    $0x0,%r13d
  jmp    L0
L23:
  mov    $0xffffffffffffffff,%r13
L0:
  mov    %r13,%rax
  add    $0x8,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
```

assistant: ```c
ssize_t write_in_full(int fd, const void *buf, size_t count) {
  const char *p = buf;
  ssize_t total = 0;
  while (count > 0) {
    ssize_t written = xwrite(fd, p, count);
    if (written < 0)
      return -1;
    if (!written) {
      errno = ENOSPC;
      return -1;
    }
    count -= written;
    p += written;
    total += written;
  }
  return total;
}
```
user: 请将以下的汇编代码转换成C语言代码:

```asm
<write_in_full>:
  endbr64
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x8,%rsp
  test   %rdx,%rdx
  je     L2
  mov    %edi,%r12d
  mov    %rsi,%rbp
  mov    %rdx,%rbx
  xor    %r13d,%r13d
  jmp    L58
  nopl   0x0(%rax)
L29:
  je     L44
  add    %rax,%rbp
  add    %rax,%r13
  sub    %rax,%rbx
  je     L9
L58:
  mov    %rbx,%rdx
  mov    %rbp,%rsi
  mov    %r12d,%edi
  call   <xwrite@plt>
  test   %rax,%rax
  jns    L29
  mov    $0xffffffffffffffff,%r13
L9:
  add    $0x8,%rsp
  mov    %r13,%rax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
  nopl   (%rax)
L44:
  mov    D7(%rip),%rax
  mov    $0xffffffffffffffff,%r13
  mov    (%rax),%edx
  mov    D2(%rip),%rax
  mov    %edx,(%rax)
  add    $0x8,%rsp
  mov    %r13,%rax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
L2:
  xor    %r13d,%r13d
  jmp    L9
```

assistant: ```c
ssize_t write_in_full(int fd, const void *buf, size_t count) {
  const char *p = buf;
  ssize_t total = 0;
  while (count > 0) {
    ssize_t written = xwrite(fd, p, count);
    if (written < 0)
      return -1;
    if (!written) {
      errno = ENOSPC;
      return -1;
    }
    count -= written;
    p += written;
    total += written;
  }
  return total;
}
```
user: 请显示与下面列出的汇编代码相匹配的C语言实现：

```asm
<write_in_full>:
  endbr64
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x8,%rsp
  test   %rdx,%rdx
  je     L29
  mov    %edi,%r12d
  mov    %rsi,%rbp
  mov    %rdx,%rbx
  xor    %r13d,%r13d
  jmp    L28
  nopl   0x0(%rax)
L43:
  je     L24
  add    %rax,%rbp
  add    %rax,%r13
  sub    %rax,%rbx
  je     L59
L28:
  mov    %rbx,%rdx
  mov    %rbp,%rsi
  mov    %r12d,%edi
  call   <xwrite@plt>
  test   %rax,%rax
  jns    L43
  mov    $0xffffffffffffffff,%r13
L59:
  add    $0x8,%rsp
  mov    %r13,%rax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
  nopl   (%rax)
L24:
  mov    D5(%rip),%rax
  mov    $0xffffffffffffffff,%r13
  mov    (%rax),%edx
  mov    D1(%rip),%rax
  mov    %edx,(%rax)
  add    $0x8,%rsp
  mov    %r13,%rax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
L29:
  xor    %r13d,%r13d
  jmp    L59
```

assistant: ```c
ssize_t write_in_full(int fd, const void *buf, size_t count) {
  const char *p = buf;
  ssize_t total = 0;
  while (count > 0) {
    ssize_t written = xwrite(fd, p, count);
    if (written < 0)
      return -1;
    if (!written) {
      errno = ENOSPC;
      return -1;
    }
    count -= written;
    p += written;
    total += written;
  }
  return total;
}
```
user: What is the c source code of the assembly code below:

```asm
<timespec_to_nsec>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  push   %rbx
  sub    $0x18,%rsp
  mov    %rdi,%rax
  mov    %rsi,%rcx
  mov    %rcx,%rdx
  mov    %rax,-0x20(%rbp)
  mov    %rdx,-0x18(%rbp)
  mov    -0x20(%rbp),%rax
  cmp    $0xffffffffffffffff,%rax
  jne    L15
  mov    -0x18(%rbp),%rax
  cmp    $0xffffffffffffffff,%rax
  jne    L15
  mov    D3(%rip),%rax
  mov    (%rax),%eax
  jmp    L20
L15:
  mov    -0x20(%rbp),%rax
  mov    %eax,%ebx
  mov    $0x3b9aca00,%edi
  call   <UINT64_C@plt>
  mov    %ebx,%edx
  imul   %eax,%edx
  mov    -0x18(%rbp),%rax
  add    %edx,%eax
L20:
  mov    -0x8(%rbp),%rbx
  leave
  ret
```

assistant: ```c
uint64_t timespec_to_nsec(struct timespec t) {
  if (t.tv_sec == (time_t)-1 && t.tv_nsec == (long)-1)
    return UINT64_MAX;
  return (uint64_t)t.tv_sec * UINT64_C(1000000000) + (uint64_t)t.tv_nsec;
}
```
user: 提供的汇编代码用C语言表示会是什么样子：

```asm
<timespec_to_nsec>:
  endbr64
  mov    %rdi,%rax
  and    %rsi,%rax
  cmp    $0xffffffffffffffff,%rax
  je     L9
  push   %rbp
  push   %rbx
  sub    $0x8,%rsp
  mov    %rdi,%rbp
  mov    %rsi,%rbx
  mov    $0x3b9aca00,%edi
  call   <UINT64_C@plt>
  imul   %ebp,%eax
  add    %ebx,%eax
  add    $0x8,%rsp
  pop    %rbx
  pop    %rbp
  ret
L9:
  mov    D7(%rip),%rax
  mov    (%rax),%eax
  ret
```

assistant: ```c
uint64_t timespec_to_nsec(struct timespec t) {
  if (t.tv_sec == (time_t)-1 && t.tv_nsec == (long)-1)
    return UINT64_MAX;
  return (uint64_t)t.tv_sec * UINT64_C(1000000000) + (uint64_t)t.tv_nsec;
}
```
user: 请将以下的汇编代码转换成C语言代码：

```asm
<timespec_to_nsec>:
  endbr64
  mov    %rdi,%rax
  and    %rsi,%rax
  cmp    $0xffffffffffffffff,%rax
  je     L7
  push   %rbp
  mov    %rdi,%rbp
  mov    $0x3b9aca00,%edi
  push   %rbx
  mov    %rsi,%rbx
  sub    $0x8,%rsp
  call   <UINT64_C@plt>
  add    $0x8,%rsp
  imul   %ebp,%eax
  add    %ebx,%eax
  pop    %rbx
  pop    %rbp
  ret
  nopw   0x0(%rax,%rax,1)
L7:
  mov    D0(%rip),%rax
  mov    (%rax),%eax
  ret
```

assistant: ```c
uint64_t timespec_to_nsec(struct timespec t) {
  if (t.tv_sec == (time_t)-1 && t.tv_nsec == (long)-1)
    return UINT64_MAX;
  return (uint64_t)t.tv_sec * UINT64_C(1000000000) + (uint64_t)t.tv_nsec;
}
```
user: 请将以下的汇编代码转换成C语言代码：

```asm
<timespec_to_nsec>:
  endbr64
  mov    %rdi,%rax
  and    %rsi,%rax
  cmp    $0xffffffffffffffff,%rax
  je     L5
  push   %rbp
  mov    %rdi,%rbp
  mov    $0x3b9aca00,%edi
  push   %rbx
  mov    %rsi,%rbx
  sub    $0x8,%rsp
  call   <UINT64_C@plt>
  add    $0x8,%rsp
  imul   %ebp,%eax
  add    %ebx,%eax
  pop    %rbx
  pop    %rbp
  ret
  nopw   0x0(%rax,%rax,1)
L5:
  mov    D3(%rip),%rax
  mov    (%rax),%eax
  ret
```

assistant: ```c
uint64_t timespec_to_nsec(struct timespec t) {
  if (t.tv_sec == (time_t)-1 && t.tv_nsec == (long)-1)
    return UINT64_MAX;
  return (uint64_t)t.tv_sec * UINT64_C(1000000000) + (uint64_t)t.tv_nsec;
}
```
user: 这段汇编代码用C语言表示是什么样的:

```asm
<alock_shade_pixmap>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    %rdi,-0x8(%rbp)
  mov    %rsi,-0x10(%rbp)
  mov    %edx,-0x14(%rbp)
  mov    %ecx,-0x18(%rbp)
  mov    %r8d,%eax
  mov    %r9d,-0x20(%rbp)
  mov    %al,-0x1c(%rbp)
  mov    $0x0,%eax
  pop    %rbp
  ret
```

assistant: ```c
int alock_shade_pixmap(Display *display, Visual *visual, const Pixmap src_pm, Pixmap dst_pm, unsigned char shade, int src_x, int src_y, int dst_x, int dst_y, unsigned int width, unsigned int height) {
  (void)display;
  (void)visual;
  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
<alock_shade_pixmap>:
  endbr64
  mov    $0x0,%eax
  ret
```

assistant: ```c
int alock_shade_pixmap(Display *display, Visual *visual, const Pixmap src_pm, Pixmap dst_pm, unsigned char shade, int src_x, int src_y, int dst_x, int dst_y, unsigned int width, unsigned int height) {
  (void)display;
  (void)visual;
  return 0;
}
```
user: What would the C source look like for the assembly code provided here?

```asm
<alock_shade_pixmap>:
  endbr64
  xor    %eax,%eax
  ret
```

assistant: ```c
int alock_shade_pixmap(Display *display, Visual *visual, const Pixmap src_pm, Pixmap dst_pm, unsigned char shade, int src_x, int src_y, int dst_x, int dst_y, unsigned int width, unsigned int height) {
  (void)display;
  (void)visual;
  return 0;
}
```
user: Demonstrate the C code that generates the assembly output below:

```asm
<alock_shade_pixmap>:
  endbr64
  xor    %eax,%eax
  ret
```

assistant: ```c
int alock_shade_pixmap(Display *display, Visual *visual, const Pixmap src_pm, Pixmap dst_pm, unsigned char shade, int src_x, int src_y, int dst_x, int dst_y, unsigned int width, unsigned int height) {
  (void)display;
  (void)visual;
  return 0;
}
```
user: 请将这段汇编代码片段转换成等效的C代码:

```asm
<glmNormalizeVector4d>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x20,%rsp
  mov    %rdi,-0x18(%rbp)
  mov    -0x18(%rbp),%rax
  movsd  (%rax),%xmm1
  mov    -0x18(%rbp),%rax
  movsd  (%rax),%xmm0
  mulsd  %xmm0,%xmm1
  mov    -0x18(%rbp),%rax
  add    $0x8,%rax
  movsd  (%rax),%xmm2
  mov    -0x18(%rbp),%rax
  add    $0x8,%rax
  movsd  (%rax),%xmm0
  mulsd  %xmm2,%xmm0
  addsd  %xmm0,%xmm1
  mov    -0x18(%rbp),%rax
  add    $0x10,%rax
  movsd  (%rax),%xmm2
  mov    -0x18(%rbp),%rax
  add    $0x10,%rax
  movsd  (%rax),%xmm0
  mulsd  %xmm2,%xmm0
  addsd  %xmm0,%xmm1
  mov    -0x18(%rbp),%rax
  add    $0x18,%rax
  movsd  (%rax),%xmm2
  mov    -0x18(%rbp),%rax
  add    $0x18,%rax
  movsd  (%rax),%xmm0
  mulsd  %xmm2,%xmm0
  addsd  %xmm0,%xmm1
  movq   %xmm1,%rax
  movq   %rax,%xmm0
  call   <sqrt@plt>
  movq   %xmm0,%rax
  mov    %rax,-0x8(%rbp)
  movsd  -0x8(%rbp),%xmm0
  pxor   %xmm1,%xmm1
  comisd %xmm1,%xmm0
  jbe    L5
  mov    -0x18(%rbp),%rax
  movsd  (%rax),%xmm0
  divsd  -0x8(%rbp),%xmm0
  mov    -0x18(%rbp),%rax
  movsd  %xmm0,(%rax)
  mov    -0x18(%rbp),%rax
  add    $0x8,%rax
  movsd  (%rax),%xmm0
  mov    -0x18(%rbp),%rax
  add    $0x8,%rax
  divsd  -0x8(%rbp),%xmm0
  movsd  %xmm0,(%rax)
  mov    -0x18(%rbp),%rax
  add    $0x10,%rax
  movsd  (%rax),%xmm0
  mov    -0x18(%rbp),%rax
  add    $0x10,%rax
  divsd  -0x8(%rbp),%xmm0
  movsd  %xmm0,(%rax)
  mov    -0x18(%rbp),%rax
  add    $0x18,%rax
  movsd  (%rax),%xmm0
  mov    -0x18(%rbp),%rax
  add    $0x18,%rax
  divsd  -0x8(%rbp),%xmm0
  movsd  %xmm0,(%rax)
L5:
  movsd  -0x8(%rbp),%xmm0
  movq   %xmm0,%rax
  movq   %rax,%xmm0
  leave
  ret
```

assistant: ```c
double glmNormalizeVector4d(double v[4]) {
  double length;
  length = sqrt(v[0] * v[0] + v[1] * v[1] + v[2] * v[2] + v[3] * v[3]);
  if (length > 0) {
    v[0] /= length;
    v[1] /= length;
    v[2] /= length;
    v[3] /= length;
  }
  return length;
}
```
user: Demonstrate the C code that generates the assembly output below:

```asm
<glmNormalizeVector4d>:
  endbr64
  sub    $0x38,%rsp
  movsd  (%rdi),%xmm4
  movsd  0x8(%rdi),%xmm3
  movsd  0x10(%rdi),%xmm2
  movsd  0x18(%rdi),%xmm1
  movapd %xmm4,%xmm0
  movapd %xmm3,%xmm5
  mulsd  %xmm3,%xmm5
  mulsd  %xmm4,%xmm0
  addsd  %xmm5,%xmm0
  movapd %xmm2,%xmm5
  mulsd  %xmm2,%xmm5
  addsd  %xmm5,%xmm0
  movapd %xmm1,%xmm5
  mulsd  %xmm1,%xmm5
  addsd  %xmm5,%xmm0
  pxor   %xmm5,%xmm5
  ucomisd %xmm0,%xmm5
  ja     L21
  sqrtsd %xmm0,%xmm0
L25:
  comisd %xmm5,%xmm0
  jbe    L8
  divsd  %xmm0,%xmm4
  divsd  %xmm0,%xmm3
  movsd  %xmm4,(%rdi)
  divsd  %xmm0,%xmm2
  movsd  %xmm3,0x8(%rdi)
  divsd  %xmm0,%xmm1
  movsd  %xmm2,0x10(%rdi)
  movsd  %xmm1,0x18(%rdi)
L8:
  add    $0x38,%rsp
  ret
L21:
  mov    %rdi,0x28(%rsp)
  movsd  %xmm1,0x20(%rsp)
  movsd  %xmm2,0x18(%rsp)
  movsd  %xmm3,0x10(%rsp)
  movsd  %xmm4,0x8(%rsp)
  call   <sqrt@plt>
  mov    0x28(%rsp),%rdi
  pxor   %xmm5,%xmm5
  movsd  0x20(%rsp),%xmm1
  movsd  0x18(%rsp),%xmm2
  movsd  0x10(%rsp),%xmm3
  movsd  0x8(%rsp),%xmm4
  jmp    L25
```

assistant: ```c
double glmNormalizeVector4d(double v[4]) {
  double length;
  length = sqrt(v[0] * v[0] + v[1] * v[1] + v[2] * v[2] + v[3] * v[3]);
  if (length > 0) {
    v[0] /= length;
    v[1] /= length;
    v[2] /= length;
    v[3] /= length;
  }
  return length;
}
```
user: Please show me the C implementation that matches the assembly code listed below:

```asm
<glmNormalizeVector4d>:
  endbr64
  movsd  (%rdi),%xmm0
  movsd  0x8(%rdi),%xmm3
  movupd 0x10(%rdi),%xmm4
  movsd  0x10(%rdi),%xmm2
  mulsd  %xmm0,%xmm0
  movupd (%rdi),%xmm5
  mulsd  %xmm3,%xmm3
  movapd %xmm4,%xmm6
  mulsd  %xmm2,%xmm2
  unpckhpd %xmm6,%xmm6
  movapd %xmm6,%xmm1
  mulsd  %xmm6,%xmm1
  addsd  %xmm3,%xmm0
  addsd  %xmm2,%xmm0
  addsd  %xmm1,%xmm0
  pxor   %xmm1,%xmm1
  ucomisd %xmm0,%xmm1
  ja     L3
  sqrtsd %xmm0,%xmm0
  comisd %xmm1,%xmm0
  movapd %xmm0,%xmm2
  unpcklpd %xmm2,%xmm2
  jbe    L0
  divpd  %xmm2,%xmm5
  divpd  %xmm2,%xmm4
  movups %xmm5,(%rdi)
  movups %xmm4,0x10(%rdi)
  ret
  nop
L0:
  ret
L3:
  sub    $0x38,%rsp
  mov    %rdi,0x28(%rsp)
  movaps %xmm4,0x10(%rsp)
  movaps %xmm5,(%rsp)
  call   <sqrt@plt>
  pxor   %xmm1,%xmm1
  mov    0x28(%rsp),%rdi
  movapd 0x10(%rsp),%xmm4
  comisd %xmm1,%xmm0
  movapd %xmm0,%xmm2
  movapd (%rsp),%xmm5
  unpcklpd %xmm2,%xmm2
  jbe    L15
  divpd  %xmm2,%xmm5
  divpd  %xmm2,%xmm4
  movups %xmm5,(%rdi)
  movups %xmm4,0x10(%rdi)
L15:
  add    $0x38,%rsp
  ret
```

assistant: ```c
double glmNormalizeVector4d(double v[4]) {
  double length;
  length = sqrt(v[0] * v[0] + v[1] * v[1] + v[2] * v[2] + v[3] * v[3]);
  if (length > 0) {
    v[0] /= length;
    v[1] /= length;
    v[2] /= length;
    v[3] /= length;
  }
  return length;
}
```
user: Translate the below assembly code into C programming language:

```asm
<expr>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x20,%rsp
  mov    %rdi,-0x18(%rbp)
  mov    -0x18(%rbp),%rax
  mov    %rax,%rdi
  call   <assignment_expr@plt>
  mov    %rax,-0x8(%rbp)
  jmp    L17
L7:
  mov    -0x18(%rbp),%rax
  mov    $0x5,%esi
  mov    %rax,%rdi
  call   <eat@plt>
  mov    -0x18(%rbp),%rax
  mov    %rax,%rdi
  call   <assignment_expr@plt>
  mov    %rax,%rdx
  mov    -0x8(%rbp),%rsi
  mov    -0x18(%rbp),%rax
  mov    $0x0,%ecx
  mov    %rax,%rdi
  call   <mkprog@plt>
  mov    %rax,-0x8(%rbp)
L17:
  mov    -0x18(%rbp),%rax
  mov    %rax,%rdi
  call   <peek@plt>
  cmp    $0x5,%eax
  je     L7
  mov    -0x8(%rbp),%rax
  leave
  ret
```

assistant: ```c
struct triple *expr(struct compile_state *state) {
  struct triple *def;
  def = assignment_expr(state);
  while (peek(state) == 5) {
    eat(state, 5);
    def = mkprog(state, def, assignment_expr(state), 0UL);
  }
  return def;
}
```