ylfeng/ReF-Decompile-dataset huggingface dataset:
user: Translate the below assembly code into C programming language:

```asm
<CANErrCntrGet>:
  endbr64
  push   %r12
  mov    %rsi,%r12
  push   %rbp
  mov    %rdx,%rbp
  push   %rbx
  mov    %edi,%ebx
  add    $0x8,%ebx
  movslq %ebx,%rbx
  call   <_CANBaseValid@plt>
  mov    %eax,%edi
  call   <ASSERT@plt>
  mov    (%rbx),%eax
  pop    %rbx
  mov    %eax,%edx
  sar    $0x8,%edx
  and    $0x7f,%edx
  mov    %edx,(%r12)
  movzbl %al,%edx
  shr    $0xf,%eax
  mov    %edx,0x0(%rbp)
  and    $0x1,%eax
  pop    %rbp
  pop    %r12
  ret
```

assistant: ```c
bool CANErrCntrGet(uint32_t ui32Base, uint32_t *pui32RxCount, uint32_t *pui32TxCount) {
  uint32_t ui32CANError;
  ASSERT(_CANBaseValid(ui32Base));
  ui32CANError = (*((volatile uint32_t *)(ui32Base + 0x00000008)));
  *pui32RxCount = (ui32CANError & 0x00007F00) >> 8;
  *pui32TxCount = (ui32CANError & 0x000000FF) >> 0;
  if (ui32CANError & 0x00008000) {
    return (true);
  }
  return (false);
}
```
user: 请显示与下面列出的汇编代码相匹配的C语言实现:

```asm
<CANErrCntrGet>:
  endbr64
  push   %r12
  mov    %rsi,%r12
  push   %rbp
  mov    %rdx,%rbp
  push   %rbx
  mov    %edi,%ebx
  add    $0x8,%ebx
  movslq %ebx,%rbx
  call   <_CANBaseValid@plt>
  mov    %eax,%edi
  call   <ASSERT@plt>
  mov    (%rbx),%eax
  pop    %rbx
  mov    %eax,%edx
  sar    $0x8,%edx
  and    $0x7f,%edx
  mov    %edx,(%r12)
  movzbl %al,%edx
  shr    $0xf,%eax
  mov    %edx,0x0(%rbp)
  and    $0x1,%eax
  pop    %rbp
  pop    %r12
  ret
```

assistant: ```c
bool CANErrCntrGet(uint32_t ui32Base, uint32_t *pui32RxCount, uint32_t *pui32TxCount) {
  uint32_t ui32CANError;
  ASSERT(_CANBaseValid(ui32Base));
  ui32CANError = (*((volatile uint32_t *)(ui32Base + 0x00000008)));
  *pui32RxCount = (ui32CANError & 0x00007F00) >> 8;
  *pui32TxCount = (ui32CANError & 0x000000FF) >> 0;
  if (ui32CANError & 0x00008000) {
    return (true);
  }
  return (false);
}
```
user: 请显示与下面列出的汇编代码相匹配的C语言实现:

```asm
<_strdup>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x20,%rsp
  mov    %rdi,-0x18(%rbp)
  movq   $0x0,-0x10(%rbp)
  cmpq   $0x0,-0x18(%rbp)
  je     L15
  mov    -0x18(%rbp),%rax
  mov    %rax,%rdi
  call   <strlen@plt>
  add    $0x1,%eax
  cltq
  mov    %rax,-0x8(%rbp)
  mov    -0x8(%rbp),%rax
  mov    %rax,%rdi
  call   <malloc@plt>
  mov    %rax,-0x10(%rbp)
  cmpq   $0x0,-0x10(%rbp)
  je     L15
  mov    -0x8(%rbp),%rdx
  mov    -0x18(%rbp),%rcx
  mov    -0x10(%rbp),%rax
  mov    %rcx,%rsi
  mov    %rax,%rdi
  call   <memcpy@plt>
L15:
  mov    -0x10(%rbp),%rax
  leave
  ret
```

assistant: ```c
char *_strdup(const char *s) {
  char *str = NULL;
  if (s) {
    size_t size = strlen(s) + 1;
    str = malloc(size);
    if (str) {
      memcpy(str, s, size);
    }
  }
  return str;
}
```
user: 请将这段汇编代码片段转换成等效的C代码：

```asm
<_strdup>:
  endbr64
  push   %r12
  push   %rbp
  push   %rbx
  mov    %rdi,%rbp
  test   %rdi,%rdi
  je     L7
  mov    %rdi,%rbx
  call   <strlen@plt>
  lea    0x1(%rax),%r12d
  movslq %r12d,%r12
  mov    %r12,%rdi
  call   <malloc@plt>
  mov    %rax,%rbp
  test   %rax,%rax
  je     L7
  mov    %r12,%rdx
  mov    %rbx,%rsi
  mov    %rax,%rdi
  call   <memcpy@plt>
L7:
  mov    %rbp,%rax
  pop    %rbx
  pop    %rbp
  pop    %r12
  ret
```

assistant: ```c
char *_strdup(const char *s) {
  char *str = NULL;
  if (s) {
    size_t size = strlen(s) + 1;
    str = malloc(size);
    if (str) {
      memcpy(str, s, size);
    }
  }
  return str;
}
```
user: Please show me the C implementation that matches the assembly code listed below:

```asm
<_strdup>:
  endbr64
  push   %r13
  push   %r12
  xor    %r12d,%r12d
  push   %rbp
  test   %rdi,%rdi
  je     L13
  mov    %rdi,%rbp
  call   <strlen@plt>
  lea    0x1(%rax),%r13d
  movslq %r13d,%r13
  mov    %r13,%rdi
  call   <malloc@plt>
  mov    %rax,%r12
  test   %rax,%rax
  je     L13
  mov    %r13,%rdx
  mov    %rbp,%rsi
  mov    %rax,%rdi
  call   <memcpy@plt>
L13:
  mov    %r12,%rax
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
```

assistant: ```c
char *_strdup(const char *s) {
  char *str = NULL;
  if (s) {
    size_t size = strlen(s) + 1;
    str = malloc(size);
    if (str) {
      memcpy(str, s, size);
    }
  }
  return str;
}
```
user: 提供的汇编代码用C语言表示会是什么样子:

```asm
<_strdup>:
  endbr64
  push   %r13
  push   %r12
  xor    %r12d,%r12d
  push   %rbp
  test   %rdi,%rdi
  je     L6
  mov    %rdi,%rbp
  call   <strlen@plt>
  lea    0x1(%rax),%r13d
  movslq %r13d,%r13
  mov    %r13,%rdi
  call   <malloc@plt>
  mov    %rax,%r12
  test   %rax,%rax
  je     L6
  mov    %r13,%rdx
  mov    %rbp,%rsi
  mov    %rax,%rdi
  call   <memcpy@plt>
L6:
  mov    %r12,%rax
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
```

assistant: ```c
char *_strdup(const char *s) {
  char *str = NULL;
  if (s) {
    size_t size = strlen(s) + 1;
    str = malloc(size);
    if (str) {
      memcpy(str, s, size);
    }
  }
  return str;
}
```
user: 请将以下的汇编代码转换成C语言代码:

```asm
<main>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x410,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
  movabs $0x44796d4f4c4c4548,%rax
  movabs $0x64726f77524145,%rdx
  mov    %rax,-0x410(%rbp)
  mov    %rdx,-0x408(%rbp)
  lea    -0x400(%rbp),%rdx
  mov    $0x0,%eax
  mov    $0x7e,%ecx
  mov    %rdx,%rdi
  rep stos %rax,%es:(%rdi)
  lea    -0x410(%rbp),%rax
  mov    %rax,%rdi
  call   <separateString@plt>
  mov    $0x0,%eax
  mov    -0x8(%rbp),%rdx
  sub    %fs:0x28,%rdx
  je     L3
  call   <__stack_chk_fail@plt>
L3:
  leave
  ret
```

assistant: ```c
int main(void) {
  char arr[1024] = "HELLOmyDEARword";
  separateString(arr);
  return 0;
}
```
user: 请将这段汇编代码片段转换成等效的C代码：

```asm
<main>:
  endbr64
  sub    $0x418,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x408(%rsp)
  xor    %eax,%eax
  movabs $0x44796d4f4c4c4548,%rax
  movabs $0x64726f77524145,%rdx
  mov    %rax,(%rsp)
  mov    %rdx,0x8(%rsp)
  lea    0x10(%rsp),%rdi
  mov    $0x7e,%ecx
  mov    $0x0,%eax
  rep stos %rax,%es:(%rdi)
  mov    %rsp,%rdi
  call   <separateString@plt>
  mov    0x408(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L3
  mov    $0x0,%eax
  add    $0x418,%rsp
  ret
L3:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
int main(void) {
  char arr[1024] = "HELLOmyDEARword";
  separateString(arr);
  return 0;
}
```
user: Translate the below assembly code into C programming language:

```asm
<main>:
  endbr64
  sub    $0x418,%rsp
  mov    $0x7e,%ecx
  movdqa D4(%rip),%xmm0
  mov    %fs:0x28,%rax
  mov    %rax,0x408(%rsp)
  xor    %eax,%eax
  lea    0x10(%rsp),%rdi
  movaps %xmm0,(%rsp)
  rep stos %rax,%es:(%rdi)
  mov    %rsp,%rdi
  call   <separateString@plt>
  mov    0x408(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L8
  xor    %eax,%eax
  add    $0x418,%rsp
  ret
L8:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: parse_data
arguments: label: D4
type_guessed: byte[16]

tool: {"D4": [0x48,0x45,0x4c,0x4c,0x4f,0x6d,0x79,0x44,0x45,0x41,0x52,0x77,0x6f,0x72,0x64,0x00]}

assistant: ```c
int main(void) {
  char arr[1024] = "HELLOmyDEARword";
  separateString(arr);
  return 0;
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<main>:
  endbr64
  sub    $0x418,%rsp
  mov    $0x7e,%ecx
  movdqa D2(%rip),%xmm0
  mov    %fs:0x28,%rax
  mov    %rax,0x408(%rsp)
  xor    %eax,%eax
  lea    0x10(%rsp),%rdi
  movaps %xmm0,(%rsp)
  rep stos %rax,%es:(%rdi)
  mov    %rsp,%rdi
  call   <separateString@plt>
  mov    0x408(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L4
  xor    %eax,%eax
  add    $0x418,%rsp
  ret
L4:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: extract_symbolic_data
arguments: tag: D2
datatype: byte[16]

tool: {"D2": [0x48,0x45,0x4c,0x4c,0x4f,0x6d,0x79,0x44,0x45,0x41,0x52,0x77,0x6f,0x72,0x64,0x00]}

assistant: ```c
int main(void) {
  char arr[1024] = "HELLOmyDEARword";
  separateString(arr);
  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
<character>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    %rdi,-0x18(%rbp)
  mov    %esi,%eax
  mov    %al,-0x1c(%rbp)
  movl   $0x0,-0x4(%rbp)
  jmp    L23
L35:
  mov    -0x4(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  test   %al,%al
  je     L17
  mov    -0x4(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  cmp    %al,-0x1c(%rbp)
  jne    L17
  mov    -0x4(%rbp),%eax
  jmp    L13
L17:
  addl   $0x1,-0x4(%rbp)
L23:
  mov    -0x4(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  test   %al,%al
  jne    L35
  mov    -0x4(%rbp),%eax
L13:
  pop    %rbp
  ret
```

assistant: ```c
int character(char *str, char str2) {
  int i;
  i = 0;
  while (str[i] != '\0') {
    if (str[i] != '\0' && str[i] == str2)
      return (i);
    i++;
  }
  return (i);
}
```
user: What is the c source code of the assembly code below:

```asm
<character>:
  endbr64
  mov    %esi,%r8d
  movzbl (%rdi),%eax
  cmp    %sil,%al
  je     L36
  test   %al,%al
  je     L36
  mov    $0x1,%eax
L27:
  mov    %eax,%ecx
  movzbl (%rdi,%rax,1),%edx
  add    $0x1,%rax
  cmp    %r8b,%dl
  je     L47
  test   %dl,%dl
  jne    L27
L47:
  mov    %ecx,%eax
  ret
L36:
  mov    $0x0,%ecx
  jmp    L47
```

assistant: ```c
int character(char *str, char str2) {
  int i;
  i = 0;
  while (str[i] != '\0') {
    if (str[i] != '\0' && str[i] == str2)
      return (i);
    i++;
  }
  return (i);
}
```
user: 请从给定的汇编指令推导出C源代码:

```asm
<character>:
  endbr64
  movzbl (%rdi),%eax
  mov    %esi,%ecx
  cmp    %sil,%al
  je     L16
  test   %al,%al
  je     L16
  mov    $0x1,%eax
  jmp    L48
  nopl   0x0(%rax)
L18:
  test   %dl,%dl
  je     L41
L48:
  movzbl (%rdi,%rax,1),%edx
  mov    %eax,%r8d
  add    $0x1,%rax
  cmp    %cl,%dl
  jne    L18
L41:
  mov    %r8d,%eax
  ret
  nopw   0x0(%rax,%rax,1)
L16:
  xor    %r8d,%r8d
  mov    %r8d,%eax
  ret
```

assistant: ```c
int character(char *str, char str2) {
  int i;
  i = 0;
  while (str[i] != '\0') {
    if (str[i] != '\0' && str[i] == str2)
      return (i);
    i++;
  }
  return (i);
}
```
user: 请将这段汇编代码片段转换成等效的C代码:

```asm
<character>:
  endbr64
  movzbl (%rdi),%eax
  mov    %esi,%ecx
  cmp    %sil,%al
  je     L18
  test   %al,%al
  je     L18
  mov    $0x1,%eax
  jmp    L23
  nopl   0x0(%rax)
L20:
  test   %dl,%dl
  je     L26
L23:
  movzbl (%rdi,%rax,1),%edx
  mov    %eax,%r8d
  add    $0x1,%rax
  cmp    %cl,%dl
  jne    L20
L26:
  mov    %r8d,%eax
  ret
  nopw   0x0(%rax,%rax,1)
L18:
  xor    %r8d,%r8d
  mov    %r8d,%eax
  ret
```

assistant: ```c
int character(char *str, char str2) {
  int i;
  i = 0;
  while (str[i] != '\0') {
    if (str[i] != '\0' && str[i] == str2)
      return (i);
    i++;
  }
  return (i);
}
```
user: Demonstrate the C code that generates the assembly output below:

```asm
<xpreadv>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x30,%rsp
  mov    %edi,-0x14(%rbp)
  mov    %rsi,-0x20(%rbp)
  mov    %edx,-0x18(%rbp)
  mov    %ecx,-0x24(%rbp)
L21:
  mov    -0x24(%rbp),%ecx
  mov    -0x18(%rbp),%edx
  mov    -0x20(%rbp),%rsi
  mov    -0x14(%rbp),%eax
  mov    %eax,%edi
  call   <preadv@plt>
  mov    %rax,-0x8(%rbp)
  cmpq   $0x0,-0x8(%rbp)
  jns    L18
  mov    D38(%rip),%rax
  mov    (%rax),%rdx
  mov    D21(%rip),%rax
  mov    (%rax),%rax
  cmp    %rax,%rdx
  je     L21
  mov    D38(%rip),%rax
  mov    (%rax),%rdx
  mov    D0(%rip),%rax
  mov    (%rax),%rax
  cmp    %rax,%rdx
  jne    L18
  jmp    L21
L18:
  mov    -0x8(%rbp),%rax
  leave
  ret
```

assistant: ```c
ssize_t xpreadv(int fd, const struct iovec *iov, int iovcnt, off_t offset) {
  ssize_t nr;
restart:
  nr = preadv(fd, iov, iovcnt, offset);
  if ((nr < 0) && ((errno == EAGAIN) || (errno == EINTR)))
    goto restart;
  return nr;
}
```
user: 请显示与下面列出的汇编代码相匹配的C语言实现:

```asm
<xpreadv>:
  endbr64
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x8,%rsp
  mov    %edi,%r13d
  mov    %rsi,%r12
  mov    %edx,%ebp
  mov    %ecx,%ebx
L8:
  mov    %ebx,%ecx
  mov    %ebp,%edx
  mov    %r12,%rsi
  mov    %r13d,%edi
  call   <preadv@plt>
  test   %rax,%rax
  jns    L16
  mov    D8(%rip),%rdx
  mov    (%rdx),%rdx
  mov    D17(%rip),%rcx
  cmp    (%rcx),%rdx
  je     L8
  mov    D13(%rip),%rcx
  cmp    (%rcx),%rdx
  je     L8
L16:
  add    $0x8,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
```

assistant: ```c
ssize_t xpreadv(int fd, const struct iovec *iov, int iovcnt, off_t offset) {
  ssize_t nr;
restart:
  nr = preadv(fd, iov, iovcnt, offset);
  if ((nr < 0) && ((errno == EAGAIN) || (errno == EINTR)))
    goto restart;
  return nr;
}
```
user: 提供的汇编代码用C语言表示会是什么样子:

```asm
<xpreadv>:
  endbr64
  push   %r13
  mov    %edi,%r13d
  push   %r12
  mov    %rsi,%r12
  push   %rbp
  mov    %edx,%ebp
  push   %rbx
  mov    %ecx,%ebx
  sub    $0x8,%rsp
  nopl   0x0(%rax,%rax,1)
L17:
  mov    %ebx,%ecx
  mov    %ebp,%edx
  mov    %r12,%rsi
  mov    %r13d,%edi
  call   <preadv@plt>
  test   %rax,%rax
  jns    L29
  mov    D7(%rip),%rdx
  mov    D17(%rip),%rcx
  mov    (%rdx),%rdx
  cmp    (%rcx),%rdx
  je     L17
  mov    D1(%rip),%rcx
  cmp    (%rcx),%rdx
  je     L17
L29:
  add    $0x8,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
```

assistant: ```c
ssize_t xpreadv(int fd, const struct iovec *iov, int iovcnt, off_t offset) {
  ssize_t nr;
restart:
  nr = preadv(fd, iov, iovcnt, offset);
  if ((nr < 0) && ((errno == EAGAIN) || (errno == EINTR)))
    goto restart;
  return nr;
}
```
user: 这段汇编代码用C语言表示是什么样的：

```asm
<xpreadv>:
  endbr64
  push   %r13
  mov    %edi,%r13d
  push   %r12
  mov    %rsi,%r12
  push   %rbp
  mov    %edx,%ebp
  push   %rbx
  mov    %ecx,%ebx
  sub    $0x8,%rsp
  nopl   0x0(%rax,%rax,1)
L29:
  mov    %ebx,%ecx
  mov    %ebp,%edx
  mov    %r12,%rsi
  mov    %r13d,%edi
  call   <preadv@plt>
  test   %rax,%rax
  jns    L16
  mov    D23(%rip),%rdx
  mov    D7(%rip),%rcx
  mov    (%rdx),%rdx
  cmp    (%rcx),%rdx
  je     L29
  mov    D24(%rip),%rcx
  cmp    (%rcx),%rdx
  je     L29
L16:
  add    $0x8,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
```

assistant: ```c
ssize_t xpreadv(int fd, const struct iovec *iov, int iovcnt, off_t offset) {
  ssize_t nr;
restart:
  nr = preadv(fd, iov, iovcnt, offset);
  if ((nr < 0) && ((errno == EAGAIN) || (errno == EINTR)))
    goto restart;
  return nr;
}
```
user: 请显示与下面列出的汇编代码相匹配的C语言实现：

```asm
<trimquotes>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x20,%rsp
  mov    %rdi,-0x18(%rbp)
  jmp    L40
L9:
  addq   $0x1,-0x18(%rbp)
L40:
  mov    -0x18(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x22,%al
  je     L9
  mov    -0x18(%rbp),%rax
  movzbl (%rax),%eax
  test   %al,%al
  jne    L27
  mov    -0x18(%rbp),%rax
  jmp    L21
L27:
  mov    -0x18(%rbp),%rax
  mov    %rax,%rdi
  call   <strlen@plt>
  cltq
  lea    -0x1(%rax),%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  mov    %rax,-0x8(%rbp)
  jmp    L44
L53:
  subq   $0x1,-0x8(%rbp)
L44:
  mov    -0x8(%rbp),%rax
  cmp    -0x18(%rbp),%rax
  jbe    L43
  mov    -0x8(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x22,%al
  je     L53
L43:
  mov    -0x8(%rbp),%rax
  add    $0x1,%rax
  movb   $0x0,(%rax)
  mov    -0x18(%rbp),%rax
L21:
  leave
  ret
```

assistant: ```c
char *trimquotes(char *str) {
  while (*str == '"')
    str++;
  if (*str == 0)
    return str;
  char *end = str + strlen(str) - 1;
  while (end > str && (*end == '"'))
    end--;
  *(end + 1) = 0;
  return str;
}
```
user: What is the c source code of the assembly code below:

```asm
<trimquotes>:
  endbr64
  push   %rbx
  mov    %rdi,%rbx
  movzbl (%rdi),%eax
  cmp    $0x22,%al
  jne    L58
L5:
  add    $0x1,%rbx
  movzbl (%rbx),%eax
  cmp    $0x22,%al
  je     L5
L58:
  test   %al,%al
  jne    L22
L12:
  mov    %rbx,%rax
  pop    %rbx
  ret
L22:
  mov    %rbx,%rdi
  call   <strlen@plt>
  cltq
  lea    -0x1(%rbx,%rax,1),%rax
  cmp    %rbx,%rax
  jbe    L10
L29:
  cmpb   $0x22,(%rax)
  jne    L10
  sub    $0x1,%rax
  cmp    %rbx,%rax
  jne    L29
  mov    %rbx,%rax
L10:
  movb   $0x0,0x1(%rax)
  jmp    L12
```

assistant: ```c
char *trimquotes(char *str) {
  while (*str == '"')
    str++;
  if (*str == 0)
    return str;
  char *end = str + strlen(str) - 1;
  while (end > str && (*end == '"'))
    end--;
  *(end + 1) = 0;
  return str;
}
```
user: 请从给定的汇编指令推导出C源代码:

```asm
<trimquotes>:
  endbr64
  push   %r12
  movzbl (%rdi),%eax
  mov    %rdi,%r12
  cmp    $0x22,%al
  jne    L1
L10:
  movzbl 0x1(%r12),%eax
  add    $0x1,%r12
  cmp    $0x22,%al
  je     L10
L1:
  test   %al,%al
  jne    L9
  mov    %r12,%rax
  pop    %r12
  ret
  nopl   0x0(%rax,%rax,1)
L9:
  mov    %r12,%rdi
  call   <strlen@plt>
  cltq
  lea    -0x1(%r12,%rax,1),%rax
  cmp    %r12,%rax
  ja     L41
  jmp    L38
  cs nopw 0x0(%rax,%rax,1)
L5:
  sub    $0x1,%rax
  cmp    %r12,%rax
  je     L38
L41:
  cmpb   $0x22,(%rax)
  je     L5
L38:
  movb   $0x0,0x1(%rax)
  mov    %r12,%rax
  pop    %r12
  ret
```

assistant: ```c
char *trimquotes(char *str) {
  while (*str == '"')
    str++;
  if (*str == 0)
    return str;
  char *end = str + strlen(str) - 1;
  while (end > str && (*end == '"'))
    end--;
  *(end + 1) = 0;
  return str;
}
```
user: Please show me the C implementation that matches the assembly code listed below:

```asm
<trimquotes>:
  endbr64
  push   %r12
  movzbl (%rdi),%eax
  mov    %rdi,%r12
  cmp    $0x22,%al
  jne    L61
L39:
  movzbl 0x1(%r12),%eax
  add    $0x1,%r12
  cmp    $0x22,%al
  je     L39
L61:
  test   %al,%al
  jne    L41
  mov    %r12,%rax
  pop    %r12
  ret
  nopl   0x0(%rax,%rax,1)
L41:
  mov    %r12,%rdi
  call   <strlen@plt>
  cltq
  lea    -0x1(%r12,%rax,1),%rax
  cmp    %r12,%rax
  ja     L62
  jmp    L65
  cs nopw 0x0(%rax,%rax,1)
L32:
  sub    $0x1,%rax
  cmp    %r12,%rax
  je     L65
L62:
  cmpb   $0x22,(%rax)
  je     L32
L65:
  movb   $0x0,0x1(%rax)
  mov    %r12,%rax
  pop    %r12
  ret
```

assistant: ```c
char *trimquotes(char *str) {
  while (*str == '"')
    str++;
  if (*str == 0)
    return str;
  char *end = str + strlen(str) - 1;
  while (end > str && (*end == '"'))
    end--;
  *(end + 1) = 0;
  return str;
}
```
user: What is the c source code of the assembly code below?

```asm
<recvfrom>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x30,%rsp
  mov    %edi,-0x4(%rbp)
  mov    %rsi,-0x10(%rbp)
  mov    %rdx,-0x18(%rbp)
  mov    %ecx,-0x8(%rbp)
  mov    %r8,-0x20(%rbp)
  mov    %r9,-0x28(%rbp)
  cmpq   $0x0,-0x20(%rbp)
  jne    L5
  mov    -0x8(%rbp),%ecx
  mov    -0x18(%rbp),%rdx
  mov    -0x10(%rbp),%rsi
  mov    -0x4(%rbp),%eax
  mov    %eax,%edi
  call   <recv@plt>
  jmp    L17
L5:
  mov    -0x28(%rbp),%r8
  mov    -0x20(%rbp),%rdi
  mov    -0x8(%rbp),%ecx
  mov    -0x18(%rbp),%rdx
  mov    -0x10(%rbp),%rsi
  mov    -0x4(%rbp),%eax
  mov    %r8,%r9
  mov    %rdi,%r8
  mov    %eax,%edi
  call   <real_recvfrom@plt>
L17:
  leave
  ret
```

assistant: ```c
ssize_t recvfrom(int fd, void *buffer, size_t length, int flags, struct sockaddr *src_addr, socklen_t *addrlen) {
  if (src_addr == NULL) {
    return recv(fd, buffer, length, flags);
  } else {
    return real_recvfrom(fd, buffer, length, flags, src_addr, addrlen);
  }
}
```
user: 请显示与下面列出的汇编代码相匹配的C语言实现:

```asm
<recvfrom>:
  endbr64
  sub    $0x8,%rsp
  test   %r8,%r8
  je     L15
  call   <real_recvfrom@plt>
L3:
  add    $0x8,%rsp
  ret
L15:
  call   <recv@plt>
  jmp    L3
```

assistant: ```c
ssize_t recvfrom(int fd, void *buffer, size_t length, int flags, struct sockaddr *src_addr, socklen_t *addrlen) {
  if (src_addr == NULL) {
    return recv(fd, buffer, length, flags);
  } else {
    return real_recvfrom(fd, buffer, length, flags, src_addr, addrlen);
  }
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<recvfrom>:
  endbr64
  test   %r8,%r8
  je     L7
  jmp    1070 <real_recvfrom@plt>
  xchg   %ax,%ax
L7:
  jmp    1060 <recv@plt>
```

assistant: ```c
ssize_t recvfrom(int fd, void *buffer, size_t length, int flags, struct sockaddr *src_addr, socklen_t *addrlen) {
  if (src_addr == NULL) {
    return recv(fd, buffer, length, flags);
  } else {
    return real_recvfrom(fd, buffer, length, flags, src_addr, addrlen);
  }
}
```
user: 这段汇编代码用C语言表示是什么样的？

```asm
<recvfrom>:
  endbr64
  test   %r8,%r8
  je     L0
  jmp    1070 <real_recvfrom@plt>
  xchg   %ax,%ax
L0:
  jmp    1060 <recv@plt>
```

assistant: ```c
ssize_t recvfrom(int fd, void *buffer, size_t length, int flags, struct sockaddr *src_addr, socklen_t *addrlen) {
  if (src_addr == NULL) {
    return recv(fd, buffer, length, flags);
  } else {
    return real_recvfrom(fd, buffer, length, flags, src_addr, addrlen);
  }
}
```
user: 提供的汇编代码用C语言表示会是什么样子:

```asm
<extract_ssid>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    %rdi,-0x18(%rbp)
  movl   $0x0,-0x4(%rbp)
  mov    -0x4(%rbp),%eax
  mov    %eax,-0x8(%rbp)
  jmp    L10
L17:
  mov    -0x8(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  movzbl %al,%eax
  and    $0x80,%eax
  mov    %eax,%edx
  mov    -0x8(%rbp),%eax
  add    $0x2,%eax
  mov    %eax,%ecx
  sar    %cl,%edx
  mov    %edx,%eax
  or     %eax,-0x4(%rbp)
  mov    -0x8(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%edx
  mov    -0x8(%rbp),%eax
  movslq %eax,%rcx
  mov    -0x18(%rbp),%rax
  add    %rcx,%rax
  and    $0x7f,%edx
  mov    %dl,(%rax)
  addl   $0x1,-0x8(%rbp)
L10:
  cmpl   $0x5,-0x8(%rbp)
  jle    L17
  mov    -0x4(%rbp),%eax
  pop    %rbp
  ret
```

assistant: ```c
int extract_ssid(unsigned char *call) {
  int c, ssid;
  for (c = ssid = 0; c < 6; c++) {
    ssid |= (call[c] & 0x80) >> (c + 2);
    call[c] &= 0x7f;
  }
  return ssid;
}
```
user: 请从给定的汇编指令推导出C源代码:

```asm
<extract_ssid>:
  endbr64
  lea    0x6(%rdi),%r10
  mov    %rdi,%rax
  mov    $0x0,%r8d
  mov    $0x2,%r9d
  sub    %edi,%r9d
L0:
  movzbl (%rax),%edx
  mov    %edx,%esi
  and    $0x80,%esi
  lea    (%r9,%rax,1),%ecx
  sar    %cl,%esi
  or     %esi,%r8d
  and    $0x7f,%edx
  mov    %dl,(%rax)
  add    $0x1,%rax
  cmp    %r10,%rax
  jne    L0
  mov    %r8d,%eax
  ret
```

assistant: ```c
int extract_ssid(unsigned char *call) {
  int c, ssid;
  for (c = ssid = 0; c < 6; c++) {
    ssid |= (call[c] & 0x80) >> (c + 2);
    call[c] &= 0x7f;
  }
  return ssid;
}
```
user: 下面的汇编指令对应的C源代码是什么:

```asm
<extract_ssid>:
  endbr64
  mov    $0x2,%esi
  lea    0x6(%rdi),%r9
  xor    %r8d,%r8d
  sub    %edi,%esi
  nopw   0x0(%rax,%rax,1)
L7:
  movzbl (%rdi),%eax
  lea    (%rsi,%rdi,1),%ecx
  add    $0x1,%rdi
  mov    %eax,%edx
  and    $0x7f,%eax
  and    $0x80,%edx
  mov    %al,-0x1(%rdi)
  sar    %cl,%edx
  or     %edx,%r8d
  cmp    %r9,%rdi
  jne    L7
  mov    %r8d,%eax
  ret
```

assistant: ```c
int extract_ssid(unsigned char *call) {
  int c, ssid;
  for (c = ssid = 0; c < 6; c++) {
    ssid |= (call[c] & 0x80) >> (c + 2);
    call[c] &= 0x7f;
  }
  return ssid;
}
```
user: Demonstrate the C code that generates the assembly output below:

```asm
<extract_ssid>:
  endbr64
  movzbl 0x1(%rdi),%eax
  movzbl 0x2(%rdi),%ecx
  and    $0x80,%eax
  and    $0x80,%ecx
  sar    $0x4,%ecx
  sar    $0x3,%eax
  or     %ecx,%eax
  movzbl (%rdi),%ecx
  and    $0x80,%ecx
  sar    $0x2,%ecx
  or     %ecx,%eax
  movzbl 0x3(%rdi),%ecx
  andl   $0x7f7f7f7f,(%rdi)
  and    $0x80,%ecx
  sar    $0x5,%ecx
  or     %ecx,%eax
  movzbl 0x4(%rdi),%ecx
  and    $0x80,%ecx
  sar    $0x6,%ecx
  or     %eax,%ecx
  movzbl 0x5(%rdi),%eax
  andw   $0x7f7f,0x4(%rdi)
  and    $0x80,%eax
  sar    $0x7,%eax
  or     %ecx,%eax
  ret
```

assistant: ```c
int extract_ssid(unsigned char *call) {
  int c, ssid;
  for (c = ssid = 0; c < 6; c++) {
    ssid |= (call[c] & 0x80) >> (c + 2);
    call[c] &= 0x7f;
  }
  return ssid;
}
```