ylfeng/ReF-Decompile-dataset huggingface dataset:
user: 下面的汇编指令对应的C源代码是什么：

```asm
<testPassConstPointerIndirectly>:
  endbr64
  sub    $0x8,%rsp
  mov    $0x1,%edi
  call   <malloc@plt>
  mov    $0x8,%edx
  add    $0x8,%rsp
  lea    0x1(%rax),%rdi
  mov    %rdi,%rsi
  jmp    1060 <memcmp@plt>
```

assistant: ```c
void testPassConstPointerIndirectly() {
  char *p = malloc(1);
  p++;
  memcmp(p, p, sizeof(&p));
  return;
}
```
user: 下面的汇编指令对应的C源代码是什么:

```asm
<testPassConstPointerIndirectly>:
  endbr64
  sub    $0x8,%rsp
  mov    $0x1,%edi
  call   <malloc@plt>
  mov    $0x8,%edx
  add    $0x8,%rsp
  lea    0x1(%rax),%rdi
  mov    %rdi,%rsi
  jmp    1060 <memcmp@plt>
```

assistant: ```c
void testPassConstPointerIndirectly() {
  char *p = malloc(1);
  p++;
  memcmp(p, p, sizeof(&p));
  return;
}
```
user: Translate the below assembly code into C programming language:

```asm
<trace_get_nsec>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x20,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
  mov    D2(%rip),%rax
  mov    (%rax),%eax
  lea    -0x20(%rbp),%rdx
  mov    %rdx,%rsi
  mov    %eax,%edi
  call   <clock_gettime@plt>
  mov    -0x18(%rbp),%rax
  imul   $0x3b9aca00,%rax,%rdx
  mov    -0x20(%rbp),%rax
  add    %rdx,%rax
  mov    -0x8(%rbp),%rdx
  sub    %fs:0x28,%rdx
  je     L3
  call   <__stack_chk_fail@plt>
L3:
  leave
  ret
```

assistant: ```c
unsigned long long trace_get_nsec(void) {
  struct timespec tv;
  clock_gettime(CLOCK_REALTIME, &tv);
  return ((unsigned long long)tv.tv_sec * 1000000000) + tv.tv_nsec;
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<trace_get_nsec>:
  endbr64
  sub    $0x28,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x18(%rsp)
  xor    %eax,%eax
  mov    %rsp,%rsi
  mov    D5(%rip),%rax
  mov    (%rax),%edi
  call   <clock_gettime@plt>
  imul   $0x3b9aca00,0x8(%rsp),%rax
  add    (%rsp),%rax
  mov    0x18(%rsp),%rdx
  sub    %fs:0x28,%rdx
  jne    L7
  add    $0x28,%rsp
  ret
L7:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
unsigned long long trace_get_nsec(void) {
  struct timespec tv;
  clock_gettime(CLOCK_REALTIME, &tv);
  return ((unsigned long long)tv.tv_sec * 1000000000) + tv.tv_nsec;
}
```
user: Please show me the C implementation that matches the assembly code listed below:

```asm
<trace_get_nsec>:
  endbr64
  sub    $0x28,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x18(%rsp)
  xor    %eax,%eax
  mov    D0(%rip),%rax
  mov    %rsp,%rsi
  mov    (%rax),%edi
  call   <clock_gettime@plt>
  imul   $0x3b9aca00,0x8(%rsp),%rax
  add    (%rsp),%rax
  mov    0x18(%rsp),%rdx
  sub    %fs:0x28,%rdx
  jne    L2
  add    $0x28,%rsp
  ret
L2:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
unsigned long long trace_get_nsec(void) {
  struct timespec tv;
  clock_gettime(CLOCK_REALTIME, &tv);
  return ((unsigned long long)tv.tv_sec * 1000000000) + tv.tv_nsec;
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<trace_get_nsec>:
  endbr64
  sub    $0x28,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x18(%rsp)
  xor    %eax,%eax
  mov    D5(%rip),%rax
  mov    %rsp,%rsi
  mov    (%rax),%edi
  call   <clock_gettime@plt>
  imul   $0x3b9aca00,0x8(%rsp),%rax
  add    (%rsp),%rax
  mov    0x18(%rsp),%rdx
  sub    %fs:0x28,%rdx
  jne    L1
  add    $0x28,%rsp
  ret
L1:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
unsigned long long trace_get_nsec(void) {
  struct timespec tv;
  clock_gettime(CLOCK_REALTIME, &tv);
  return ((unsigned long long)tv.tv_sec * 1000000000) + tv.tv_nsec;
}
```
user: 请从给定的汇编指令推导出C源代码:

```asm
<strspn>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x60,%rsp
  mov    %rdi,-0x58(%rbp)
  mov    %rsi,-0x60(%rbp)
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
  mov    -0x58(%rbp),%rax
  mov    %rax,-0x40(%rbp)
  mov    -0x60(%rbp),%rax
  mov    %rax,-0x38(%rbp)
  movl   $0x0,-0x44(%rbp)
  jmp    L22
L79:
  mov    -0x44(%rbp),%eax
  cltq
  movb   $0x0,-0x30(%rbp,%rax,1)
  addl   $0x1,-0x44(%rbp)
L22:
  cmpl   $0x1f,-0x44(%rbp)
  jle    L79
  jmp    L65
L16:
  mov    -0x38(%rbp),%rax
  movzbl (%rax),%eax
  sar    $0x3,%al
  movsbl %al,%eax
  cltq
  movzbl -0x30(%rbp,%rax,1),%edx
  mov    -0x38(%rbp),%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  and    $0x7,%eax
  mov    $0x1,%esi
  mov    %eax,%ecx
  shl    %cl,%esi
  mov    %esi,%eax
  mov    %eax,%ecx
  mov    -0x38(%rbp),%rax
  movzbl (%rax),%eax
  sar    $0x3,%al
  movsbl %al,%eax
  or     %ecx,%edx
  cltq
  mov    %dl,-0x30(%rbp,%rax,1)
  addq   $0x1,-0x38(%rbp)
L65:
  mov    -0x38(%rbp),%rax
  movzbl (%rax),%eax
  test   %al,%al
  jne    L16
  mov    -0x40(%rbp),%rax
  movzbl (%rax),%eax
  test   %al,%al
  je     L18
  movl   $0x0,-0x44(%rbp)
  jmp    L44
L57:
  addl   $0x1,-0x44(%rbp)
  addq   $0x1,-0x40(%rbp)
L44:
  mov    -0x40(%rbp),%rax
  movzbl (%rax),%eax
  sar    $0x3,%al
  movsbl %al,%eax
  cltq
  movzbl -0x30(%rbp,%rax,1),%eax
  movsbl %al,%edx
  mov    -0x40(%rbp),%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  and    $0x7,%eax
  mov    %eax,%ecx
  sar    %cl,%edx
  mov    %edx,%eax
  and    $0x1,%eax
  test   %eax,%eax
  jne    L57
  mov    -0x44(%rbp),%eax
  cltq
  jmp    L3
L18:
  mov    $0x0,%eax
L3:
  mov    -0x8(%rbp),%rdx
  sub    %fs:0x28,%rdx
  je     L37
  call   <__stack_chk_fail@plt>
L37:
  leave
  ret
```

assistant: ```c
size_t strspn(const char *string, const char *control) {
  const char *str = string;
  const char *ctrl = control;
  char map[32];
  int n;
  for (n = 0; n < 32; n++)
    map[n] = 0;
  while (*ctrl) {
    map[*ctrl >> 3] |= (1 << (*ctrl & 7));
    ctrl++;
  }
  if (*str) {
    n = 0;
    while (map[*str >> 3] & (1 << (*str & 7))) {
      n++;
      str++;
    }
    return n;
  }
  return 0;
}
```
user: 下面的汇编指令对应的C源代码是什么：

```asm
<strspn>:
  endbr64
  sub    $0x38,%rsp
  mov    %rdi,%r8
  mov    %fs:0x28,%rax
  mov    %rax,0x28(%rsp)
  xor    %eax,%eax
  mov    %rsp,%rax
  lea    0x20(%rsp),%rdx
L75:
  movb   $0x0,(%rax)
  add    $0x1,%rax
  cmp    %rdx,%rax
  jne    L75
  movzbl (%rsi),%ecx
  test   %cl,%cl
  je     L9
  mov    $0x1,%edi
L45:
  mov    %ecx,%eax
  sar    $0x3,%al
  movsbq %al,%rax
  and    $0x7,%ecx
  mov    %edi,%edx
  shl    %cl,%edx
  or     %dl,(%rsp,%rax,1)
  add    $0x1,%rsi
  movzbl (%rsi),%ecx
  test   %cl,%cl
  jne    L45
L9:
  movzbl (%r8),%ecx
  mov    $0x0,%eax
  test   %cl,%cl
  jne    L77
L63:
  mov    0x28(%rsp),%rdx
  sub    %fs:0x28,%rdx
  jne    L38
  add    $0x38,%rsp
  ret
L77:
  mov    %ecx,%eax
  sar    $0x3,%al
  movsbq %al,%rax
  movsbl (%rsp,%rax,1),%esi
  and    $0x7,%ecx
  sar    %cl,%esi
  and    $0x1,%esi
  je     L42
  mov    %r8,%rdx
  mov    $0x1,%edi
  sub    %r8d,%edi
L27:
  lea    (%rdi,%rdx,1),%esi
  add    $0x1,%rdx
  movzbl (%rdx),%eax
  mov    %eax,%ecx
  sar    $0x3,%cl
  movsbq %cl,%rcx
  movsbl (%rsp,%rcx,1),%ecx
  and    $0x7,%eax
  bt     %eax,%ecx
  jb     L27
L42:
  movslq %esi,%rax
  jmp    L63
L38:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
size_t strspn(const char *string, const char *control) {
  const char *str = string;
  const char *ctrl = control;
  char map[32];
  int n;
  for (n = 0; n < 32; n++)
    map[n] = 0;
  while (*ctrl) {
    map[*ctrl >> 3] |= (1 << (*ctrl & 7));
    ctrl++;
  }
  if (*str) {
    n = 0;
    while (map[*str >> 3] & (1 << (*str & 7))) {
      n++;
      str++;
    }
    return n;
  }
  return 0;
}
```
user: 请从给定的汇编指令推导出C源代码：

```asm
<strspn>:
  endbr64
  sub    $0x38,%rsp
  movzbl (%rsi),%ecx
  pxor   %xmm0,%xmm0
  mov    $0x1,%r8d
  mov    %fs:0x28,%rax
  mov    %rax,0x28(%rsp)
  xor    %eax,%eax
  movaps %xmm0,(%rsp)
  movaps %xmm0,0x10(%rsp)
  test   %cl,%cl
  je     L9
  nopw   0x0(%rax,%rax,1)
L48:
  mov    %ecx,%eax
  mov    %r8d,%edx
  and    $0x7,%ecx
  add    $0x1,%rsi
  shl    %cl,%edx
  sar    $0x3,%al
  movzbl (%rsi),%ecx
  movsbq %al,%rax
  or     %dl,(%rsp,%rax,1)
  test   %cl,%cl
  jne    L48
L9:
  movzbl (%rdi),%eax
  test   %al,%al
  jne    L37
L14:
  xor    %eax,%eax
L46:
  mov    0x28(%rsp),%rdx
  sub    %fs:0x28,%rdx
  jne    L20
  add    $0x38,%rsp
  ret
  nopl   (%rax)
L37:
  mov    %eax,%edx
  and    $0x7,%eax
  sar    $0x3,%dl
  movsbq %dl,%rdx
  movsbl (%rsp,%rdx,1),%edx
  bt     %eax,%edx
  jae    L14
  mov    %rdi,%rax
  mov    $0x1,%edi
  sub    %eax,%edi
  nopw   0x0(%rax,%rax,1)
L69:
  lea    (%rdi,%rax,1),%esi
  movzbl 0x1(%rax),%edx
  add    $0x1,%rax
  mov    %edx,%ecx
  and    $0x7,%edx
  sar    $0x3,%cl
  movsbq %cl,%rcx
  movsbl (%rsp,%rcx,1),%ecx
  bt     %edx,%ecx
  jb     L69
  movslq %esi,%rax
  jmp    L46
L20:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
size_t strspn(const char *string, const char *control) {
  const char *str = string;
  const char *ctrl = control;
  char map[32];
  int n;
  for (n = 0; n < 32; n++)
    map[n] = 0;
  while (*ctrl) {
    map[*ctrl >> 3] |= (1 << (*ctrl & 7));
    ctrl++;
  }
  if (*str) {
    n = 0;
    while (map[*str >> 3] & (1 << (*str & 7))) {
      n++;
      str++;
    }
    return n;
  }
  return 0;
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<strspn>:
  endbr64
  sub    $0x38,%rsp
  movzbl (%rsi),%ecx
  pxor   %xmm0,%xmm0
  mov    $0x1,%r8d
  mov    %fs:0x28,%rax
  mov    %rax,0x28(%rsp)
  xor    %eax,%eax
  movaps %xmm0,(%rsp)
  movaps %xmm0,0x10(%rsp)
  test   %cl,%cl
  je     L66
  nopw   0x0(%rax,%rax,1)
L35:
  mov    %ecx,%eax
  mov    %r8d,%edx
  and    $0x7,%ecx
  add    $0x1,%rsi
  shl    %cl,%edx
  sar    $0x3,%al
  movzbl (%rsi),%ecx
  movsbq %al,%rax
  or     %dl,(%rsp,%rax,1)
  test   %cl,%cl
  jne    L35
L66:
  movzbl (%rdi),%eax
  test   %al,%al
  jne    L40
L3:
  xor    %eax,%eax
L20:
  mov    0x28(%rsp),%rdx
  sub    %fs:0x28,%rdx
  jne    L51
  add    $0x38,%rsp
  ret
  nopl   (%rax)
L40:
  mov    %eax,%edx
  and    $0x7,%eax
  sar    $0x3,%dl
  movsbq %dl,%rdx
  movsbl (%rsp,%rdx,1),%edx
  bt     %eax,%edx
  jae    L3
  mov    %rdi,%rax
  mov    $0x1,%edi
  sub    %eax,%edi
  nopw   0x0(%rax,%rax,1)
L69:
  lea    (%rdi,%rax,1),%esi
  movzbl 0x1(%rax),%edx
  add    $0x1,%rax
  mov    %edx,%ecx
  and    $0x7,%edx
  sar    $0x3,%cl
  movsbq %cl,%rcx
  movsbl (%rsp,%rcx,1),%ecx
  bt     %edx,%ecx
  jb     L69
  movslq %esi,%rax
  jmp    L20
L51:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
size_t strspn(const char *string, const char *control) {
  const char *str = string;
  const char *ctrl = control;
  char map[32];
  int n;
  for (n = 0; n < 32; n++)
    map[n] = 0;
  while (*ctrl) {
    map[*ctrl >> 3] |= (1 << (*ctrl & 7));
    ctrl++;
  }
  if (*str) {
    n = 0;
    while (map[*str >> 3] & (1 << (*str & 7))) {
      n++;
      str++;
    }
    return n;
  }
  return 0;
}
```
user: What would the C source look like for the assembly code provided here:

```asm
<main>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x20,%rsp
  mov    %edi,-0x14(%rbp)
  mov    %rsi,-0x20(%rbp)
  mov    $0x0,%eax
  call   <getuid@plt>
  mov    %rax,-0x10(%rbp)
  mov    -0x10(%rbp),%rax
  mov    %rax,%rdi
  call   <getpwuid@plt>
  mov    %rax,-0x8(%rbp)
  cmpq   $0x0,-0x8(%rbp)
  je     L12
  mov    -0x8(%rbp),%rax
  mov    (%rax),%rax
  mov    %rax,%rsi
  lea    D7(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
  jmp    L14
L12:
  mov    -0x10(%rbp),%rax
  mov    %rax,%rsi
  lea    D6(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
L14:
  mov    $0x0,%eax
  leave
  ret
```

tool_calls: name: extract_symbolic_data
arguments: label: D7
type: string
name: extract_symbolic_data
arguments: label: D6
type: string

tool: D7: %s


tool: D6: %ld


assistant: ```c
int main(int argc, char **argv) {
  struct passwd *pw;
  uid_t uid;
  uid = getuid();
  pw = getpwuid(uid);
  if (pw) {
    printf("%s\n", pw->pw_name);
  } else {
    printf("%ld\n", uid);
  }
  return (0);
}
```
user: What would the C source look like for the assembly code provided here?

```asm
<main>:
  endbr64
  push   %rbx
  mov    $0x0,%eax
  call   <getuid@plt>
  mov    %rax,%rbx
  mov    %rax,%rdi
  call   <getpwuid@plt>
  test   %rax,%rax
  je     L16
  mov    (%rax),%rsi
  lea    D19(%rip),%rdi
  call   <printf@plt>
L11:
  mov    $0x0,%eax
  pop    %rbx
  ret
L16:
  mov    %rbx,%rsi
  lea    D3(%rip),%rdi
  call   <printf@plt>
  jmp    L11
```

tool_calls: name: read_data
arguments: data_tag: D19
type: string
name: read_data
arguments: data_tag: D3
type: string

tool: D19: %s


tool: D3: %ld


assistant: ```c
int main(int argc, char **argv) {
  struct passwd *pw;
  uid_t uid;
  uid = getuid();
  pw = getpwuid(uid);
  if (pw) {
    printf("%s\n", pw->pw_name);
  } else {
    printf("%ld\n", uid);
  }
  return (0);
}
```
user: 这段汇编代码用C语言表示是什么样的?

```asm
<main>:
  endbr64
  push   %rbp
  xor    %eax,%eax
  call   <getuid@plt>
  mov    %rax,%rdi
  mov    %rax,%rbp
  call   <getpwuid@plt>
  test   %rax,%rax
  je     L6
  mov    (%rax),%rsi
  lea    D5(%rip),%rdi
  call   <printf@plt>
L8:
  xor    %eax,%eax
  pop    %rbp
  ret
L6:
  mov    %rbp,%rsi
  lea    D10(%rip),%rdi
  call   <printf@plt>
  jmp    L8
```

tool_calls: name: read_data
arguments: data_label: D5
type_infered: string
name: read_data
arguments: data_label: D10
type_infered: string

tool: D5: %s


tool: D10: %ld


assistant: ```c
int main(int argc, char **argv) {
  struct passwd *pw;
  uid_t uid;
  uid = getuid();
  pw = getpwuid(uid);
  if (pw) {
    printf("%s\n", pw->pw_name);
  } else {
    printf("%ld\n", uid);
  }
  return (0);
}
```
user: 请将以下的汇编代码转换成C语言代码：

```asm
<main>:
  endbr64
  push   %rbp
  xor    %eax,%eax
  call   <getuid@plt>
  mov    %rax,%rdi
  mov    %rax,%rbp
  call   <getpwuid@plt>
  test   %rax,%rax
  je     L8
  mov    (%rax),%rsi
  lea    D12(%rip),%rdi
  call   <printf@plt>
L11:
  xor    %eax,%eax
  pop    %rbp
  ret
L8:
  mov    %rbp,%rsi
  lea    D14(%rip),%rdi
  call   <printf@plt>
  jmp    L11
```

tool_calls: name: unpack_data
arguments: data_tag: D12
type: string
name: unpack_data
arguments: data_tag: D14
type: string

tool: D12: %s


tool: D14: %ld


assistant: ```c
int main(int argc, char **argv) {
  struct passwd *pw;
  uid_t uid;
  uid = getuid();
  pw = getpwuid(uid);
  if (pw) {
    printf("%s\n", pw->pw_name);
  } else {
    printf("%ld\n", uid);
  }
  return (0);
}
```
user: What is the c source code of the assembly code below?

```asm
<ASCII2bits>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    %edi,%eax
  mov    %al,-0x4(%rbp)
  cmpb   $0x2f,-0x4(%rbp)
  jle    L35
  cmpb   $0x39,-0x4(%rbp)
  jg     L35
  movzbl -0x4(%rbp),%eax
  sub    $0x30,%eax
  jmp    L40
L35:
  cmpb   $0x60,-0x4(%rbp)
  jle    L88
  cmpb   $0x7a,-0x4(%rbp)
  jg     L88
  movzbl -0x4(%rbp),%eax
  sub    $0x57,%eax
  jmp    L40
L88:
  cmpb   $0x40,-0x4(%rbp)
  jle    L37
  cmpb   $0x5a,-0x4(%rbp)
  jg     L37
  movzbl -0x4(%rbp),%eax
  sub    $0x37,%eax
  jmp    L40
L37:
  mov    $0x0,%eax
L40:
  pop    %rbp
  ret
```

assistant: ```c
char ASCII2bits(char ch) {
  if (ch >= '0' && ch <= '9') {
    return (ch - '0');
  } else if (ch >= 'a' && ch <= 'z') {
    return (ch - 'a') + 10;
  } else if (ch >= 'A' && ch <= 'Z') {
    return (ch - 'A') + 10;
  }
  return 0;
}
```
user: Demonstrate the C code that generates the assembly output below:

```asm
<ASCII2bits>:
  endbr64
  lea    -0x30(%rdi),%eax
  cmp    $0x9,%al
  jbe    L11
  lea    -0x61(%rdi),%eax
  cmp    $0x19,%al
  jbe    L2
  lea    -0x41(%rdi),%eax
  sub    $0x37,%edi
  cmp    $0x1a,%al
  mov    $0x0,%eax
  cmovb  %edi,%eax
L11:
  ret
L2:
  lea    -0x57(%rdi),%eax
  ret
```

assistant: ```c
char ASCII2bits(char ch) {
  if (ch >= '0' && ch <= '9') {
    return (ch - '0');
  } else if (ch >= 'a' && ch <= 'z') {
    return (ch - 'a') + 10;
  } else if (ch >= 'A' && ch <= 'Z') {
    return (ch - 'A') + 10;
  }
  return 0;
}
```
user: 下面的汇编指令对应的C源代码是什么：

```asm
<ASCII2bits>:
  endbr64
  lea    -0x30(%rdi),%eax
  cmp    $0x9,%al
  jbe    L8
  lea    -0x61(%rdi),%eax
  cmp    $0x19,%al
  jbe    L18
  lea    -0x41(%rdi),%eax
  sub    $0x37,%edi
  cmp    $0x1a,%al
  mov    $0x0,%eax
  cmovb  %edi,%eax
L8:
  ret
  nopl   0x0(%rax,%rax,1)
L18:
  lea    -0x57(%rdi),%eax
  ret
```

assistant: ```c
char ASCII2bits(char ch) {
  if (ch >= '0' && ch <= '9') {
    return (ch - '0');
  } else if (ch >= 'a' && ch <= 'z') {
    return (ch - 'a') + 10;
  } else if (ch >= 'A' && ch <= 'Z') {
    return (ch - 'A') + 10;
  }
  return 0;
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<ASCII2bits>:
  endbr64
  lea    -0x30(%rdi),%eax
  cmp    $0x9,%al
  jbe    L19
  lea    -0x61(%rdi),%eax
  cmp    $0x19,%al
  jbe    L13
  lea    -0x41(%rdi),%eax
  sub    $0x37,%edi
  cmp    $0x1a,%al
  mov    $0x0,%eax
  cmovb  %edi,%eax
L19:
  ret
  nopl   0x0(%rax,%rax,1)
L13:
  lea    -0x57(%rdi),%eax
  ret
```

assistant: ```c
char ASCII2bits(char ch) {
  if (ch >= '0' && ch <= '9') {
    return (ch - '0');
  } else if (ch >= 'a' && ch <= 'z') {
    return (ch - 'a') + 10;
  } else if (ch >= 'A' && ch <= 'Z') {
    return (ch - 'A') + 10;
  }
  return 0;
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<grab_fields>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    %rdi,-0x18(%rbp)
  mov    %rsi,-0x20(%rbp)
  movl   $0x0,-0xc(%rbp)
  movq   $0x0,-0x8(%rbp)
  jmp    L5
L46:
  mov    -0x18(%rbp),%rdx
  mov    -0x8(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  cmp    $0x2e,%al
  jne    L32
  addq   $0x1,-0x8(%rbp)
  cmpq   $0x0,-0x20(%rbp)
  je     L13
  mov    -0x8(%rbp),%rdx
  mov    -0x20(%rbp),%rax
  add    %rax,%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  movb   $0x0,(%rax)
L32:
  mov    -0xc(%rbp),%edx
  mov    %edx,%eax
  shl    $0x2,%eax
  add    %edx,%eax
  add    %eax,%eax
  mov    %eax,-0xc(%rbp)
  mov    -0x18(%rbp),%rdx
  mov    -0x8(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  cmp    $0x2f,%al
  jle    L49
  mov    -0x18(%rbp),%rdx
  mov    -0x8(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  cmp    $0x39,%al
  jg     L49
  mov    -0x18(%rbp),%rdx
  mov    -0x8(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  sub    $0x30,%eax
  add    %eax,-0xc(%rbp)
L49:
  addq   $0x1,-0x8(%rbp)
L5:
  mov    -0x18(%rbp),%rdx
  mov    -0x8(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  test   %al,%al
  jne    L46
  jmp    L68
L13:
  nop
L68:
  mov    -0xc(%rbp),%eax
  pop    %rbp
  ret
```

assistant: ```c
uint16_t grab_fields(char *src, uint8_t mult) {
  uint8_t i;
  uint16_t tmp = 0;
  for (i = 0; src[i] != 0; i++) {
    if (src[i] == '.') {
      i++;
      if (mult == 0)
        break;
      else
        src[i + mult] = 0;
    }
    tmp *= 10;
    if (src[i] >= '0' && src[i] <= '9')
      tmp += src[i] - '0';
  }
  return tmp;
}
```
user: 请将以下的汇编代码转换成C语言代码:

```asm
<grab_fields>:
  endbr64
  movzbl (%rdi),%edx
  test   %dl,%dl
  je     L3
  mov    $0x0,%ecx
  mov    $0x0,%eax
  jmp    L50
L8:
  add    $0x1,%rax
  test   %rsi,%rsi
  je     L25
  lea    (%rdi,%rax,1),%rdx
  movb   $0x0,(%rdx,%rsi,1)
  jmp    L54
L70:
  add    $0x1,%rax
  movzbl (%rdi,%rax,1),%edx
  test   %dl,%dl
  je     L25
L50:
  cmp    $0x2e,%dl
  je     L8
L54:
  lea    (%rcx,%rcx,4),%edx
  add    %edx,%edx
  mov    %edx,%ecx
  movzbl (%rdi,%rax,1),%r8d
  lea    -0x30(%r8),%r9d
  cmp    $0x9,%r9b
  ja     L70
  movsbl %r8b,%r8d
  lea    -0x30(%rdx,%r8,1),%ecx
  jmp    L70
L3:
  mov    $0x0,%ecx
L25:
  mov    %ecx,%eax
  ret
```

assistant: ```c
uint16_t grab_fields(char *src, uint8_t mult) {
  uint8_t i;
  uint16_t tmp = 0;
  for (i = 0; src[i] != 0; i++) {
    if (src[i] == '.') {
      i++;
      if (mult == 0)
        break;
      else
        src[i + mult] = 0;
    }
    tmp *= 10;
    if (src[i] >= '0' && src[i] <= '9')
      tmp += src[i] - '0';
  }
  return tmp;
}
```
user: 请将以下的汇编代码转换成C语言代码：

```asm
<grab_fields>:
  endbr64
  movzbl (%rdi),%ecx
  xor    %eax,%eax
  test   %cl,%cl
  je     L47
  xor    %edx,%edx
  jmp    L48
  nopl   0x0(%rax)
L49:
  lea    (%rax,%rax,4),%ecx
  movzbl (%rdi,%rdx,1),%eax
  add    %ecx,%ecx
  lea    -0x30(%rax),%r8d
  movsbl %r8b,%eax
  add    %ecx,%eax
  cmp    $0xa,%r8b
  cmovae %ecx,%eax
  add    $0x1,%rdx
  movzbl (%rdi,%rdx,1),%ecx
  test   %cl,%cl
  je     L8
L48:
  cmp    $0x2e,%cl
  jne    L49
  test   %rsi,%rsi
  je     L47
  add    $0x1,%rdx
  lea    (%rdi,%rdx,1),%rcx
  movb   $0x0,(%rcx,%rsi,1)
  jmp    L49
  cs nopw 0x0(%rax,%rax,1)
L47:
  ret
  nopl   0x0(%rax)
L8:
  ret
```

assistant: ```c
uint16_t grab_fields(char *src, uint8_t mult) {
  uint8_t i;
  uint16_t tmp = 0;
  for (i = 0; src[i] != 0; i++) {
    if (src[i] == '.') {
      i++;
      if (mult == 0)
        break;
      else
        src[i + mult] = 0;
    }
    tmp *= 10;
    if (src[i] >= '0' && src[i] <= '9')
      tmp += src[i] - '0';
  }
  return tmp;
}
```
user: Demonstrate the C code that generates the assembly output below:

```asm
<grab_fields>:
  endbr64
  movzbl (%rdi),%eax
  test   %al,%al
  je     L59
  test   %rsi,%rsi
  je     L42
  xor    %r8d,%r8d
  xor    %ecx,%ecx
  jmp    L71
  nopl   0x0(%rax,%rax,1)
L48:
  sub    $0x30,%eax
  lea    (%r8,%r8,4),%edx
  add    %edx,%edx
  movsbl %al,%r8d
  add    %edx,%r8d
  cmp    $0xa,%al
  cmovae %edx,%r8d
  add    $0x1,%rcx
  movzbl (%rdi,%rcx,1),%eax
  test   %al,%al
  je     L73
L71:
  cmp    $0x2e,%al
  jne    L48
  add    $0x1,%rcx
  lea    (%rdi,%rcx,1),%rax
  movb   $0x0,(%rax,%rsi,1)
  movzbl (%rdi,%rcx,1),%eax
  jmp    L48
L42:
  add    $0x1,%rdi
  xor    %r8d,%r8d
  jmp    L97
  nopl   0x0(%rax)
L87:
  sub    $0x30,%eax
  lea    (%r8,%r8,4),%edx
  add    %edx,%edx
  movsbl %al,%r8d
  add    %edx,%r8d
  cmp    $0xa,%al
  cmovae %edx,%r8d
  movzbl (%rdi),%eax
  add    $0x1,%rdi
  test   %al,%al
  je     L73
L97:
  cmp    $0x2e,%al
  jne    L87
L73:
  mov    %r8d,%eax
  ret
L59:
  xor    %r8d,%r8d
  jmp    L73
```

assistant: ```c
uint16_t grab_fields(char *src, uint8_t mult) {
  uint8_t i;
  uint16_t tmp = 0;
  for (i = 0; src[i] != 0; i++) {
    if (src[i] == '.') {
      i++;
      if (mult == 0)
        break;
      else
        src[i + mult] = 0;
    }
    tmp *= 10;
    if (src[i] >= '0' && src[i] <= '9')
      tmp += src[i] - '0';
  }
  return tmp;
}
```
user: What is the c source code of the assembly code below:

```asm
<reflexive_transitive_closure>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  push   %r14
  push   %r13
  push   %r12
  push   %rbx
  sub    $0x10,%rsp
  mov    %rdi,-0x28(%rbp)
  mov    %esi,-0x2c(%rbp)
  mov    -0x2c(%rbp),%edx
  mov    -0x28(%rbp),%rax
  mov    %edx,%esi
  mov    %rax,%rdi
  call   <transitive_closure@plt>
  mov    -0x2c(%rbp),%eax
  add    $0x1f,%eax
  lea    0x1f(%rax),%edx
  test   %eax,%eax
  cmovs  %edx,%eax
  sar    $0x5,%eax
  mov    %eax,%r13d
  mov    %r13d,%eax
  imul   -0x2c(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x28(%rbp),%rax
  lea    (%rdx,%rax,1),%r14
  mov    $0x1,%r12d
  mov    -0x28(%rbp),%rbx
  jmp    L10
L3:
  mov    (%rbx),%eax
  or     %r12d,%eax
  mov    %eax,(%rbx)
  add    %r12d,%r12d
  test   %r12d,%r12d
  jne    L24
  mov    $0x1,%r12d
  add    $0x4,%rbx
L24:
  movslq %r13d,%rax
  shl    $0x2,%rax
  add    %rax,%rbx
L10:
  cmp    %r14,%rbx
  jb     L3
  nop
  nop
  add    $0x10,%rsp
  pop    %rbx
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %rbp
  ret
```

assistant: ```c
void reflexive_transitive_closure(unsigned *R, int n) {
  register int rowsize;
  register unsigned mask;
  register unsigned *rp;
  register unsigned *relend;
  transitive_closure(R, n);
  rowsize = (((n) + ((32 - 1))) / 32);
  relend = R + n * rowsize;
  mask = 1;
  rp = R;
  while (rp < relend) {
    *rp |= mask;
    mask <<= 1;
    if (mask == 0) {
      mask = 1;
      rp++;
    }
    rp += rowsize;
  }
}
```