ylfeng/ReF-Decompile-dataset huggingface dataset:
user: 提供的汇编代码用C语言表示会是什么样子:

```asm
<checktoken>:
  endbr64
  mov    %rdi,%rdx
  cmp    %rsi,%rdi
  jae    L43
  movabs $0x800030400000000,%rcx
  jmp    L58
L84:
  sub    $0x7b,%eax
  test   $0xfd,%al
  je     L22
L39:
  add    $0x1,%rdx
  cmp    %rdx,%rsi
  je     L69
L58:
  movzbl (%rdx),%eax
  cmp    $0x20,%al
  jle    L22
  cmp    $0x3b,%al
  jg     L84
  cmp    $0x21,%al
  jle    L39
  bt     %rax,%rcx
  jae    L39
L22:
  cmp    %rdi,%rdx
  sete   %al
  movzbl %al,%eax
  add    %rax,%rdx
L43:
  mov    %rdx,%rax
  ret
L69:
  mov    %rsi,%rdx
  jmp    L22
```

assistant: ```c
char *checktoken(char *s, char *s1) {
  char *s0 = s;
  if (s < s1) {
    do {
      char c = *s;
      if (c <= ' ')
        break;
      if (c == ', ')
        break;
      if (c == '(')
        break;
      if (c == ')')
        break;
      if (c == '{')
        break;
      if (c == '}')
        break;
      if (c == ';')
        break;
      if (c == '\x22')
        break;
      s++;
    } while (s < s1);
    if (s == s0)
      s++;
  }
  return s;
}
```
user: What is the c source code of the assembly code below?

```asm
<checktoken>:
  endbr64
  mov    %rdi,%r8
  cmp    %rsi,%rdi
  jae    L5
  movabs $0x800030400000000,%rdx
  jmp    L87
  nopl   0x0(%rax,%rax,1)
L55:
  cmp    $0x21,%al
  jne    L32
L58:
  add    $0x1,%r8
  cmp    %r8,%rsi
  je     L5
L87:
  movzbl (%r8),%eax
  cmp    $0x20,%al
  jle    L83
  cmp    $0x3b,%al
  jle    L55
  sub    $0x7b,%eax
  test   $0xfd,%al
  jne    L58
L83:
  xor    %eax,%eax
  cmp    %rdi,%r8
  sete   %al
  add    %rax,%r8
L5:
  mov    %r8,%rax
  ret
  nop
L32:
  bt     %rax,%rdx
  jae    L58
  xor    %eax,%eax
  cmp    %rdi,%r8
  sete   %al
  add    %rax,%r8
  jmp    L5
```

assistant: ```c
char *checktoken(char *s, char *s1) {
  char *s0 = s;
  if (s < s1) {
    do {
      char c = *s;
      if (c <= ' ')
        break;
      if (c == ', ')
        break;
      if (c == '(')
        break;
      if (c == ')')
        break;
      if (c == '{')
        break;
      if (c == '}')
        break;
      if (c == ';')
        break;
      if (c == '\x22')
        break;
      s++;
    } while (s < s1);
    if (s == s0)
      s++;
  }
  return s;
}
```
user: 下面的汇编指令对应的C源代码是什么:

```asm
<checktoken>:
  endbr64
  mov    %rdi,%r8
  cmp    %rsi,%rdi
  jae    L3
  movabs $0x800030400000000,%rdx
  jmp    L33
  nopl   0x0(%rax,%rax,1)
L66:
  cmp    $0x21,%al
  jne    L79
L49:
  add    $0x1,%r8
  cmp    %r8,%rsi
  je     L3
L33:
  movzbl (%r8),%eax
  cmp    $0x20,%al
  jle    L4
  cmp    $0x3b,%al
  jle    L66
  sub    $0x7b,%eax
  test   $0xfd,%al
  jne    L49
L4:
  xor    %eax,%eax
  cmp    %rdi,%r8
  sete   %al
  add    %rax,%r8
L3:
  mov    %r8,%rax
  ret
  nop
L79:
  bt     %rax,%rdx
  jae    L49
  xor    %eax,%eax
  cmp    %rdi,%r8
  sete   %al
  add    %rax,%r8
  jmp    L3
```

assistant: ```c
char *checktoken(char *s, char *s1) {
  char *s0 = s;
  if (s < s1) {
    do {
      char c = *s;
      if (c <= ' ')
        break;
      if (c == ', ')
        break;
      if (c == '(')
        break;
      if (c == ')')
        break;
      if (c == '{')
        break;
      if (c == '}')
        break;
      if (c == ';')
        break;
      if (c == '\x22')
        break;
      s++;
    } while (s < s1);
    if (s == s0)
      s++;
  }
  return s;
}
```
user: 请显示与下面列出的汇编代码相匹配的C语言实现:

```asm
<directiontochar>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    %edi,-0x4(%rbp)
  cmpl   $0x6,-0x4(%rbp)
  ja     L61
  mov    -0x4(%rbp),%eax
  lea    0x0(,%rax,4),%rdx
  lea    D15(%rip),%rax
  mov    (%rdx,%rax,1),%eax
  cltq
  lea    D15(%rip),%rdx
  add    %rdx,%rax
  notrack jmp *%rax
  mov    $0x6c,%eax
  jmp    L75
  mov    $0x75,%eax
  jmp    L75
  mov    $0x72,%eax
  jmp    L75
  mov    $0x64,%eax
  jmp    L75
  mov    $0x73,%eax
  jmp    L75
  mov    $0x77,%eax
  jmp    L75
  mov    $0x6e,%eax
  jmp    L75
L61:
  mov    $0x3f,%eax
L75:
  pop    %rbp
  ret
```

assistant: ```c
char directiontochar(int direction) {
  switch (direction) {
  case 0:
    return 'l';
  case 1:
    return 'u';
  case 2:
    return 'r';
  case 3:
    return 'd';
  case 5:
    return 's';
  case 6:
    return 'w';
  case 4:
    return 'n';
  default:
    return '?';
  }
}
```
user: 请将这段汇编代码片段转换成等效的C代码：

```asm
<directiontochar>:
  endbr64
  cmp    $0x6,%edi
  ja     L8
  mov    %edi,%edi
  lea    D7(%rip),%rdx
  movslq (%rdx,%rdi,4),%rax
  add    %rdx,%rax
  notrack jmp *%rax
  mov    $0x75,%eax
  ret
  mov    $0x72,%eax
  ret
  mov    $0x64,%eax
  ret
  mov    $0x73,%eax
  ret
  mov    $0x77,%eax
  ret
  mov    $0x6e,%eax
  ret
L8:
  mov    $0x3f,%eax
  ret
  mov    $0x6c,%eax
  ret
```

assistant: ```c
char directiontochar(int direction) {
  switch (direction) {
  case 0:
    return 'l';
  case 1:
    return 'u';
  case 2:
    return 'r';
  case 3:
    return 'd';
  case 5:
    return 's';
  case 6:
    return 'w';
  case 4:
    return 'n';
  default:
    return '?';
  }
}
```
user: 请将以下的汇编代码转换成C语言代码:

```asm
<directiontochar>:
  endbr64
  mov    $0x3f,%eax
  cmp    $0x6,%edi
  ja     L4
  mov    %edi,%edi
  lea    D3(%rip),%rax
  movzbl (%rax,%rdi,1),%eax
L4:
  ret
```

assistant: ```c
char directiontochar(int direction) {
  switch (direction) {
  case 0:
    return 'l';
  case 1:
    return 'u';
  case 2:
    return 'r';
  case 3:
    return 'd';
  case 5:
    return 's';
  case 6:
    return 'w';
  case 4:
    return 'n';
  default:
    return '?';
  }
}
```
user: 这段汇编代码用C语言表示是什么样的?

```asm
<directiontochar>:
  endbr64
  mov    $0x3f,%eax
  cmp    $0x6,%edi
  ja     L3
  mov    %edi,%edi
  lea    D1(%rip),%rax
  movzbl (%rax,%rdi,1),%eax
L3:
  ret
```

assistant: ```c
char directiontochar(int direction) {
  switch (direction) {
  case 0:
    return 'l';
  case 1:
    return 'u';
  case 2:
    return 'r';
  case 3:
    return 'd';
  case 5:
    return 's';
  case 6:
    return 'w';
  case 4:
    return 'n';
  default:
    return '?';
  }
}
```
user: What is the c source code of the assembly code below?

```asm
<misc_calloc>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x20,%rsp
  mov    %rdi,-0x18(%rbp)
  mov    %rsi,-0x20(%rbp)
  mov    -0x20(%rbp),%rdx
  mov    -0x18(%rbp),%rax
  mov    %rdx,%rsi
  mov    %rax,%rdi
  call   <calloc@plt>
  mov    %rax,-0x8(%rbp)
  cmpq   $0x0,-0x8(%rbp)
  jne    L6
  mov    -0x18(%rbp),%rax
  imul   -0x20(%rbp),%rax
  mov    %rax,%rsi
  lea    D7(%rip),%rax
  mov    %rax,%rdi
  call   <error_reason@plt>
L6:
  mov    -0x8(%rbp),%rax
  leave
  ret
```

tool_calls: name: parse_data
arguments: data_label: D7
data_type: string

tool: D7: Could not allocate %lld bytes of memory

assistant: ```c
void *misc_calloc(size_t n, size_t size) {
  void *result;
  result = calloc(n, size);
  if (result == NULL) {
    error_reason("Could not allocate %lld bytes of memory", (unsigned long long)n * (unsigned long long)size);
  }
  return result;
}
```
user: What would the C source look like for the assembly code provided here?

```asm
<misc_calloc>:
  endbr64
  push   %r12
  push   %rbp
  push   %rbx
  mov    %rdi,%rbp
  mov    %rsi,%r12
  call   <calloc@plt>
  mov    %rax,%rbx
  test   %rax,%rax
  je     L7
L9:
  mov    %rbx,%rax
  pop    %rbx
  pop    %rbp
  pop    %r12
  ret
L7:
  mov    %rbp,%rsi
  imul   %r12,%rsi
  lea    D7(%rip),%rdi
  call   <error_reason@plt>
  jmp    L9
```

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

tool: D7: Could not allocate %lld bytes of memory

assistant: ```c
void *misc_calloc(size_t n, size_t size) {
  void *result;
  result = calloc(n, size);
  if (result == NULL) {
    error_reason("Could not allocate %lld bytes of memory", (unsigned long long)n * (unsigned long long)size);
  }
  return result;
}
```
user: Demonstrate the C code that generates the assembly output below:

```asm
<misc_calloc>:
  endbr64
  push   %r12
  push   %rbp
  mov    %rsi,%rbp
  push   %rbx
  mov    %rdi,%rbx
  call   <calloc@plt>
  mov    %rax,%r12
  test   %rax,%rax
  je     L19
L3:
  mov    %r12,%rax
  pop    %rbx
  pop    %rbp
  pop    %r12
  ret
L19:
  imul   %rbp,%rbx
  lea    D6(%rip),%rdi
  mov    %rbx,%rsi
  call   <error_reason@plt>
  jmp    L3
```

tool_calls: name: disassemble_data
arguments: tag: D6
type_infered: string

tool: D6: Could not allocate %lld bytes of memory

assistant: ```c
void *misc_calloc(size_t n, size_t size) {
  void *result;
  result = calloc(n, size);
  if (result == NULL) {
    error_reason("Could not allocate %lld bytes of memory", (unsigned long long)n * (unsigned long long)size);
  }
  return result;
}
```
user: 请将以下的汇编代码转换成C语言代码：

```asm
<misc_calloc>:
  endbr64
  push   %r12
  push   %rbp
  mov    %rsi,%rbp
  push   %rbx
  mov    %rdi,%rbx
  call   <calloc@plt>
  mov    %rax,%r12
  test   %rax,%rax
  je     L10
L15:
  mov    %r12,%rax
  pop    %rbx
  pop    %rbp
  pop    %r12
  ret
L10:
  imul   %rbp,%rbx
  lea    D1(%rip),%rdi
  mov    %rbx,%rsi
  call   <error_reason@plt>
  jmp    L15
```

tool_calls: name: read_data
arguments: label: D1
type_guessed: string

tool: D1: Could not allocate %lld bytes of memory

assistant: ```c
void *misc_calloc(size_t n, size_t size) {
  void *result;
  result = calloc(n, size);
  if (result == NULL) {
    error_reason("Could not allocate %lld bytes of memory", (unsigned long long)n * (unsigned long long)size);
  }
  return result;
}
```
user: 下面的汇编指令对应的C源代码是什么:

```asm
<merge_sort>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x18,%rsp
  mov    %rdi,%r13
  mov    %rsi,0x8(%rsp)
  mov    %edx,%ebx
  cmp    %ecx,%edx
  je     L51
  mov    %ecx,%r12d
  lea    (%rdx,%rcx,1),%eax
  pxor   %xmm0,%xmm0
  cvtsi2ss %rax,%xmm0
  mulss  D5(%rip),%xmm0
  cvttss2si %xmm0,%rbp
  mov    %ebp,%r14d
  mov    %ebp,%ecx
  mov    0x8(%rsp),%rsi
  call   <merge_sort>
  mov    %rax,%r15
  add    $0x1,%ebp
  mov    %r12d,%ecx
  mov    %ebp,%edx
  mov    0x8(%rsp),%rsi
  mov    %r13,%rdi
  call   <merge_sort>
  mov    %rax,%rsi
  cmp    %r15,%r13
  cmove  0x8(%rsp),%r13
  cmp    %r12d,%ebx
  ja     L108
  mov    %ebx,%eax
  jmp    L40
L51:
  mov    %edx,%ebx
  mov    (%rdi,%rbx,4),%eax
  mov    %eax,(%rsi,%rbx,4)
  mov    %rsi,%r13
L108:
  mov    %r13,%rax
  add    $0x18,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L42:
  mov    %eax,%ecx
  mov    %edx,0x0(%r13,%rcx,4)
  add    $0x1,%ebp
L12:
  add    $0x1,%eax
  cmp    %eax,%r12d
  jb     L108
L40:
  cmp    %ebx,%r14d
  jb     L25
  cmp    %ebp,%r12d
  jb     L25
  mov    %ebx,%edx
  mov    (%r15,%rdx,4),%ecx
  mov    %ebp,%edx
  mov    (%rsi,%rdx,4),%edx
  cmp    %edx,%ecx
  jge    L42
  mov    %eax,%edx
  mov    %ecx,0x0(%r13,%rdx,4)
  add    $0x1,%ebx
  jmp    L12
L25:
  cmp    %ebx,%r14d
  jb     L7
  mov    %ebx,%edx
  mov    (%r15,%rdx,4),%ecx
  mov    %eax,%edx
  mov    %ecx,0x0(%r13,%rdx,4)
  add    $0x1,%ebx
  jmp    L12
L7:
  mov    %ebp,%edx
  mov    (%rsi,%rdx,4),%ecx
  mov    %eax,%edx
  mov    %ecx,0x0(%r13,%rdx,4)
  add    $0x1,%ebp
  jmp    L12
```

tool_calls: name: parse_data
arguments: label: D5
type_infered: byte[4]

tool: {"D5": [0x00,0x00,0x00,0x3f]}

assistant: ```c
int *merge_sort(int *up, int *down, unsigned int left, unsigned int right) {
  if (left == right) {
    down[left] = up[left];
    return down;
  }
  unsigned int middle = (unsigned int)((left + right) * 0.5f);
  int *l_buff = merge_sort(up, down, left, middle);
  int *r_buff = merge_sort(up, down, middle + 1, right);
  int *target = l_buff == up ? down : up;
  unsigned int l_cur = left, r_cur = middle + 1;
  for (unsigned int i = left; i <= right; i++) {
    if (l_cur <= middle && r_cur <= right) {
      if (l_buff[l_cur] < r_buff[r_cur]) {
        target[i] = l_buff[l_cur];
        l_cur++;
      } else {
        target[i] = r_buff[r_cur];
        r_cur++;
      }
    } else if (l_cur <= middle) {
      target[i] = l_buff[l_cur];
      l_cur++;
    } else {
      target[i] = r_buff[r_cur];
      r_cur++;
    }
  }
  return target;
}
```
user: 提供的汇编代码用C语言表示会是什么样子:

```asm
<merge_sort>:
  endbr64
  push   %r15
  mov    %rsi,%r8
  mov    %rdi,%r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  mov    %edx,%ebx
  sub    $0x18,%rsp
  cmp    %ecx,%ebx
  je     L54
  lea    (%rbx,%rcx,1),%eax
  pxor   %xmm0,%xmm0
  mov    %ecx,%r12d
  mov    %ebx,%edx
  cvtsi2ss %rax,%xmm0
  mulss  D6(%rip),%xmm0
  mov    %rsi,0x8(%rsp)
  cvttss2si %xmm0,%rbp
  mov    %ebp,%ecx
  mov    %ebp,%r13d
  add    $0x1,%ebp
  call   <merge_sort>
  mov    0x8(%rsp),%rsi
  mov    %r15,%rdi
  mov    %r12d,%ecx
  mov    %ebp,%edx
  mov    %rax,%r14
  call   <merge_sort>
  mov    0x8(%rsp),%r8
  cmp    %r14,%r15
  mov    %rax,%rdi
  cmovne %r15,%r8
  cmp    %r12d,%ebx
  ja     L5
  mov    %ebx,%eax
  jmp    L19
  nop
L15:
  mov    %ebx,%edx
  mov    (%r14,%rdx,4),%esi
  mov    %ebp,%edx
  mov    (%rdi,%rdx,4),%edx
  cmp    %edx,%esi
  jge    L28
  add    $0x1,%ebx
  mov    %esi,%edx
L18:
  add    $0x1,%eax
  mov    %edx,(%rcx)
  cmp    %eax,%r12d
  jb     L5
L19:
  mov    %eax,%edx
  lea    (%r8,%rdx,4),%rcx
  cmp    %ebx,%r13d
  jb     L32
  cmp    %ebp,%r12d
  jae    L15
  cmp    %ebx,%r13d
  jb     L32
  mov    %ebx,%edx
  add    $0x1,%eax
  add    $0x1,%ebx
  mov    (%r14,%rdx,4),%edx
  mov    %edx,(%rcx)
  cmp    %eax,%r12d
  jae    L19
L5:
  add    $0x18,%rsp
  mov    %r8,%rax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
  nopl   0x0(%rax,%rax,1)
L32:
  mov    %ebp,%edx
  mov    (%rdi,%rdx,4),%edx
L28:
  add    $0x1,%ebp
  jmp    L18
  nopw   0x0(%rax,%rax,1)
L54:
  mov    (%rdi,%rbx,4),%eax
  mov    %eax,(%rsi,%rbx,4)
  jmp    L5
```

tool_calls: name: extract_symbolic_data
arguments: data_label: D6
type: byte[4]

tool: {"D6": [0x00,0x00,0x00,0x3f]}

assistant: ```c
int *merge_sort(int *up, int *down, unsigned int left, unsigned int right) {
  if (left == right) {
    down[left] = up[left];
    return down;
  }
  unsigned int middle = (unsigned int)((left + right) * 0.5f);
  int *l_buff = merge_sort(up, down, left, middle);
  int *r_buff = merge_sort(up, down, middle + 1, right);
  int *target = l_buff == up ? down : up;
  unsigned int l_cur = left, r_cur = middle + 1;
  for (unsigned int i = left; i <= right; i++) {
    if (l_cur <= middle && r_cur <= right) {
      if (l_buff[l_cur] < r_buff[r_cur]) {
        target[i] = l_buff[l_cur];
        l_cur++;
      } else {
        target[i] = r_buff[r_cur];
        r_cur++;
      }
    } else if (l_cur <= middle) {
      target[i] = l_buff[l_cur];
      l_cur++;
    } else {
      target[i] = r_buff[r_cur];
      r_cur++;
    }
  }
  return target;
}
```
user: 请将这段汇编代码片段转换成等效的C代码:

```asm
<merge_sort>:
  endbr64
  push   %r15
  mov    %rsi,%r8
  mov    %rdi,%r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  mov    %edx,%ebx
  sub    $0x18,%rsp
  cmp    %ecx,%ebx
  je     L66
  lea    (%rbx,%rcx,1),%eax
  pxor   %xmm0,%xmm0
  mov    %ecx,%r12d
  mov    %ebx,%edx
  cvtsi2ss %rax,%xmm0
  mulss  D1(%rip),%xmm0
  mov    %rsi,0x8(%rsp)
  cvttss2si %xmm0,%rbp
  mov    %ebp,%ecx
  mov    %ebp,%r13d
  add    $0x1,%ebp
  call   <merge_sort>
  mov    0x8(%rsp),%rsi
  mov    %r15,%rdi
  mov    %r12d,%ecx
  mov    %ebp,%edx
  mov    %rax,%r14
  call   <merge_sort>
  mov    0x8(%rsp),%r8
  cmp    %r14,%r15
  mov    %rax,%rdi
  cmovne %r15,%r8
  cmp    %r12d,%ebx
  ja     L8
  mov    %ebx,%eax
  jmp    L38
  nop
L18:
  mov    %ebx,%edx
  mov    (%r14,%rdx,4),%esi
  mov    %ebp,%edx
  mov    (%rdi,%rdx,4),%edx
  cmp    %edx,%esi
  jge    L47
  add    $0x1,%ebx
  mov    %esi,%edx
L55:
  add    $0x1,%eax
  mov    %edx,(%rcx)
  cmp    %eax,%r12d
  jb     L8
L38:
  mov    %eax,%edx
  lea    (%r8,%rdx,4),%rcx
  cmp    %ebx,%r13d
  jb     L20
  cmp    %ebp,%r12d
  jae    L18
  cmp    %ebx,%r13d
  jb     L20
  mov    %ebx,%edx
  add    $0x1,%eax
  add    $0x1,%ebx
  mov    (%r14,%rdx,4),%edx
  mov    %edx,(%rcx)
  cmp    %eax,%r12d
  jae    L38
L8:
  add    $0x18,%rsp
  mov    %r8,%rax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
  nopl   0x0(%rax,%rax,1)
L20:
  mov    %ebp,%edx
  mov    (%rdi,%rdx,4),%edx
L47:
  add    $0x1,%ebp
  jmp    L55
  nopw   0x0(%rax,%rax,1)
L66:
  mov    (%rdi,%rbx,4),%eax
  mov    %eax,(%rsi,%rbx,4)
  jmp    L8
```

tool_calls: name: read_data
arguments: label: D1
data_type: byte[4]

tool: {"D1": [0x00,0x00,0x00,0x3f]}

assistant: ```c
int *merge_sort(int *up, int *down, unsigned int left, unsigned int right) {
  if (left == right) {
    down[left] = up[left];
    return down;
  }
  unsigned int middle = (unsigned int)((left + right) * 0.5f);
  int *l_buff = merge_sort(up, down, left, middle);
  int *r_buff = merge_sort(up, down, middle + 1, right);
  int *target = l_buff == up ? down : up;
  unsigned int l_cur = left, r_cur = middle + 1;
  for (unsigned int i = left; i <= right; i++) {
    if (l_cur <= middle && r_cur <= right) {
      if (l_buff[l_cur] < r_buff[r_cur]) {
        target[i] = l_buff[l_cur];
        l_cur++;
      } else {
        target[i] = r_buff[r_cur];
        r_cur++;
      }
    } else if (l_cur <= middle) {
      target[i] = l_buff[l_cur];
      l_cur++;
    } else {
      target[i] = r_buff[r_cur];
      r_cur++;
    }
  }
  return target;
}
```
user: 请显示与下面列出的汇编代码相匹配的C语言实现：

```asm
<strindex>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    %rdi,-0x28(%rbp)
  mov    %rsi,-0x30(%rbp)
  mov    -0x28(%rbp),%rax
  mov    %rax,-0x8(%rbp)
  jmp    L43
L56:
  mov    -0x28(%rbp),%rax
  mov    %rax,-0x18(%rbp)
  mov    -0x30(%rbp),%rax
  mov    %rax,-0x10(%rbp)
  jmp    L39
L19:
  addq   $0x1,-0x18(%rbp)
  addq   $0x1,-0x10(%rbp)
L39:
  mov    -0x10(%rbp),%rax
  movzbl (%rax),%eax
  test   %al,%al
  je     L74
  mov    -0x18(%rbp),%rax
  movzbl (%rax),%edx
  mov    -0x10(%rbp),%rax
  movzbl (%rax),%eax
  cmp    %al,%dl
  je     L19
L74:
  mov    -0x10(%rbp),%rax
  cmp    -0x30(%rbp),%rax
  jbe    L58
  mov    -0x10(%rbp),%rax
  movzbl (%rax),%eax
  test   %al,%al
  jne    L58
  mov    -0x28(%rbp),%rax
  sub    -0x8(%rbp),%rax
  jmp    L41
L58:
  addq   $0x1,-0x28(%rbp)
L43:
  mov    -0x28(%rbp),%rax
  movzbl (%rax),%eax
  test   %al,%al
  jne    L56
  mov    $0xffffffff,%eax
L41:
  pop    %rbp
  ret
```

assistant: ```c
int strindex(char *s, char *t) {
  char *b = s;
  char *p, *r;
  for (; *s != '\0'; s++) {
    for (p = s, r = t; *r != '\0' && *p == *r; p++, r++)
      ;
    if (r > t && *r == '\0')
      return s - b;
  }
  return -1;
}
```
user: 请将这段汇编代码片段转换成等效的C代码:

```asm
<strindex>:
  endbr64
  cmpb   $0x0,(%rdi)
  je     L38
  movzbl (%rsi),%r9d
  mov    %rdi,%rax
  jmp    L77
L64:
  add    $0x1,%rax
  cmpb   $0x0,(%rax)
  je     L32
L77:
  mov    %rsi,%r8
  mov    %rax,%rcx
  mov    %r9d,%edx
  test   %r9b,%r9b
  je     L64
L42:
  cmp    %dl,(%rcx)
  jne    L11
  add    $0x1,%rcx
  add    $0x1,%r8
  movzbl (%r8),%edx
  test   %dl,%dl
  jne    L42
L11:
  test   %dl,%dl
  jne    L64
  cmp    %r8,%rsi
  jae    L64
  sub    %edi,%eax
  ret
L38:
  mov    $0xffffffff,%eax
  ret
L32:
  mov    $0xffffffff,%eax
  ret
```

assistant: ```c
int strindex(char *s, char *t) {
  char *b = s;
  char *p, *r;
  for (; *s != '\0'; s++) {
    for (p = s, r = t; *r != '\0' && *p == *r; p++, r++)
      ;
    if (r > t && *r == '\0')
      return s - b;
  }
  return -1;
}
```
user: 提供的汇编代码用C语言表示会是什么样子：

```asm
<strindex>:
  endbr64
  cmpb   $0x0,(%rdi)
  je     L10
  movzbl (%rsi),%r9d
  mov    %rdi,%rax
L60:
  mov    %rsi,%r8
  mov    %rax,%rcx
  mov    %r9d,%edx
  test   %r9b,%r9b
  jne    L1
  jmp    L48
L11:
  movzbl 0x1(%r8),%edx
  add    $0x1,%r8
  add    $0x1,%rcx
  test   %dl,%dl
  je     L14
L1:
  cmp    %dl,(%rcx)
  je     L11
L48:
  add    $0x1,%rax
  cmpb   $0x0,(%rax)
  jne    L60
L10:
  mov    $0xffffffff,%eax
  ret
  nopl   0x0(%rax)
L14:
  cmp    %r8,%rsi
  jae    L48
  sub    %edi,%eax
  ret
```

assistant: ```c
int strindex(char *s, char *t) {
  char *b = s;
  char *p, *r;
  for (; *s != '\0'; s++) {
    for (p = s, r = t; *r != '\0' && *p == *r; p++, r++)
      ;
    if (r > t && *r == '\0')
      return s - b;
  }
  return -1;
}
```
user: 请显示与下面列出的汇编代码相匹配的C语言实现：

```asm
<strindex>:
  endbr64
  cmpb   $0x0,(%rdi)
  je     L57
  movzbl (%rsi),%r9d
  mov    %rdi,%rax
L64:
  mov    %rsi,%r8
  mov    %rax,%rcx
  mov    %r9d,%edx
  test   %r9b,%r9b
  jne    L1
  jmp    L31
L55:
  movzbl 0x1(%r8),%edx
  add    $0x1,%r8
  add    $0x1,%rcx
  test   %dl,%dl
  je     L62
L1:
  cmp    %dl,(%rcx)
  je     L55
L31:
  add    $0x1,%rax
  cmpb   $0x0,(%rax)
  jne    L64
L57:
  mov    $0xffffffff,%eax
  ret
  nopl   0x0(%rax)
L62:
  cmp    %r8,%rsi
  jae    L31
  sub    %edi,%eax
  ret
```

assistant: ```c
int strindex(char *s, char *t) {
  char *b = s;
  char *p, *r;
  for (; *s != '\0'; s++) {
    for (p = s, r = t; *r != '\0' && *p == *r; p++, r++)
      ;
    if (r > t && *r == '\0')
      return s - b;
  }
  return -1;
}
```
user: 下面的汇编指令对应的C源代码是什么：

```asm
<fwrite>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x30,%rsp
  mov    %rdi,-0x18(%rbp)
  mov    %rsi,-0x20(%rbp)
  mov    %rdx,-0x28(%rbp)
  mov    %rcx,-0x30(%rbp)
  mov    -0x20(%rbp),%rax
  imul   -0x28(%rbp),%rax
  mov    %rax,-0x10(%rbp)
  mov    -0x18(%rbp),%rax
  mov    %rax,-0x8(%rbp)
  jmp    L12
L3:
  mov    -0x8(%rbp),%rax
  lea    0x1(%rax),%rdx
  mov    %rdx,-0x8(%rbp)
  movzbl (%rax),%eax
  movsbl %al,%eax
  mov    -0x30(%rbp),%rdx
  mov    %rdx,%rsi
  mov    %eax,%edi
  call   <fputc@plt>
L12:
  mov    -0x10(%rbp),%rax
  lea    -0x1(%rax),%rdx
  mov    %rdx,-0x10(%rbp)
  test   %rax,%rax
  jne    L3
  mov    -0x28(%rbp),%rax
  leave
  ret
```

assistant: ```c
size_t fwrite(const void *ptr, size_t size, size_t count, FILE *file) {
  size_t left = size * count;
  const char *out = ptr;
  while (left--)
    fputc(*out++, file);
  return count;
}
```
user: 这段汇编代码用C语言表示是什么样的：

```asm
<fwrite>:
  endbr64
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x8,%rsp
  mov    %rdx,%r13
  imul   %rdx,%rsi
  test   %rsi,%rsi
  je     L13
  mov    %rdi,%rbx
  mov    %rcx,%r12
  lea    (%rdi,%rsi,1),%rbp
L3:
  add    $0x1,%rbx
  movsbl -0x1(%rbx),%edi
  mov    %r12,%rsi
  call   <fputc@plt>
  cmp    %rbx,%rbp
  jne    L3
L13:
  mov    %r13,%rax
  add    $0x8,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
```

assistant: ```c
size_t fwrite(const void *ptr, size_t size, size_t count, FILE *file) {
  size_t left = size * count;
  const char *out = ptr;
  while (left--)
    fputc(*out++, file);
  return count;
}
```
user: 请从给定的汇编指令推导出C源代码:

```asm
<fwrite>:
  endbr64
  push   %r13
  imul   %rdx,%rsi
  mov    %rdx,%r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x8,%rsp
  test   %rsi,%rsi
  je     L15
  mov    %rdi,%rbx
  mov    %rcx,%r12
  lea    (%rdi,%rsi,1),%rbp
  nopl   0x0(%rax)
L14:
  movsbl (%rbx),%edi
  add    $0x1,%rbx
  mov    %r12,%rsi
  call   <fputc@plt>
  cmp    %rbp,%rbx
  jne    L14
L15:
  add    $0x8,%rsp
  mov    %r13,%rax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
```

assistant: ```c
size_t fwrite(const void *ptr, size_t size, size_t count, FILE *file) {
  size_t left = size * count;
  const char *out = ptr;
  while (left--)
    fputc(*out++, file);
  return count;
}
```
user: Translate the below assembly code into C programming language:

```asm
<fwrite>:
  endbr64
  push   %r13
  imul   %rdx,%rsi
  mov    %rdx,%r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x8,%rsp
  test   %rsi,%rsi
  je     L9
  mov    %rdi,%rbx
  mov    %rcx,%r12
  lea    (%rdi,%rsi,1),%rbp
  nopl   0x0(%rax)
L6:
  movsbl (%rbx),%edi
  add    $0x1,%rbx
  mov    %r12,%rsi
  call   <fputc@plt>
  cmp    %rbp,%rbx
  jne    L6
L9:
  add    $0x8,%rsp
  mov    %r13,%rax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
```

assistant: ```c
size_t fwrite(const void *ptr, size_t size, size_t count, FILE *file) {
  size_t left = size * count;
  const char *out = ptr;
  while (left--)
    fputc(*out++, file);
  return count;
}
```