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
<divide_v>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    %edi,-0x4(%rbp)
  mov    %esi,-0x8(%rbp)
  mov    %rdx,-0x10(%rbp)
  mov    %rcx,-0x18(%rbp)
  mov    -0x4(%rbp),%eax
  cltd
  idivl  -0x8(%rbp)
  mov    %eax,%edx
  mov    -0x10(%rbp),%rax
  mov    %edx,(%rax)
  mov    -0x4(%rbp),%eax
  cltd
  idivl  -0x8(%rbp)
  mov    -0x18(%rbp),%rax
  mov    %edx,(%rax)
  nop
  pop    %rbp
  ret
```

assistant: ```c
void divide_v(int a, int b, int *quotient_p, int *remainder_p) {
  *quotient_p = a / b;
  *remainder_p = a % b;
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<divide_v>:
  endbr64
  mov    %edi,%eax
  mov    %rdx,%r8
  cltd
  idiv   %esi
  mov    %eax,(%r8)
  mov    %edx,(%rcx)
  ret
```

assistant: ```c
void divide_v(int a, int b, int *quotient_p, int *remainder_p) {
  *quotient_p = a / b;
  *remainder_p = a % b;
}
```
user: 请显示与下面列出的汇编代码相匹配的C语言实现：

```asm
<divide_v>:
  endbr64
  mov    %edi,%eax
  mov    %rdx,%r8
  cltd
  idiv   %esi
  mov    %eax,(%r8)
  mov    %edx,(%rcx)
  ret
```

assistant: ```c
void divide_v(int a, int b, int *quotient_p, int *remainder_p) {
  *quotient_p = a / b;
  *remainder_p = a % b;
}
```
user: Please show me the C implementation that matches the assembly code listed below:

```asm
<divide_v>:
  endbr64
  mov    %edi,%eax
  mov    %rdx,%r8
  cltd
  idiv   %esi
  mov    %eax,(%r8)
  mov    %edx,(%rcx)
  ret
```

assistant: ```c
void divide_v(int a, int b, int *quotient_p, int *remainder_p) {
  *quotient_p = a / b;
  *remainder_p = a % b;
}
```
user: Translate the below assembly code into C programming language:

```asm
<inb>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    %edi,%eax
  mov    %ax,-0x14(%rbp)
  movzwl -0x14(%rbp),%eax
  mov    %eax,%edx
  in     (%dx),%al
  mov    %al,-0x1(%rbp)
  movzbl -0x1(%rbp),%eax
  pop    %rbp
  ret
```

assistant: ```c
unsigned char inb(unsigned short port) {
  unsigned char _v;
  __asm__ __volatile__("inb %w1, %0" : "=a"(_v) : "Nd"(port));
  return _v;
}
```
user: 请显示与下面列出的汇编代码相匹配的C语言实现:

```asm
<inb>:
  endbr64
  mov    %edi,%edx
  in     (%dx),%al
  ret
```

assistant: ```c
unsigned char inb(unsigned short port) {
  unsigned char _v;
  __asm__ __volatile__("inb %w1, %0" : "=a"(_v) : "Nd"(port));
  return _v;
}
```
user: Please show me the C implementation that matches the assembly code listed below:

```asm
<inb>:
  endbr64
  mov    %edi,%edx
  in     (%dx),%al
  ret
```

assistant: ```c
unsigned char inb(unsigned short port) {
  unsigned char _v;
  __asm__ __volatile__("inb %w1, %0" : "=a"(_v) : "Nd"(port));
  return _v;
}
```
user: 下面的汇编指令对应的C源代码是什么：

```asm
<inb>:
  endbr64
  mov    %edi,%edx
  in     (%dx),%al
  ret
```

assistant: ```c
unsigned char inb(unsigned short port) {
  unsigned char _v;
  __asm__ __volatile__("inb %w1, %0" : "=a"(_v) : "Nd"(port));
  return _v;
}
```
user: Translate the below assembly code into C programming language:

```asm
<mi_stat>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x20,%rsp
  mov    %rdi,-0x18(%rbp)
  mov    %rsi,-0x20(%rbp)
  movl   $0x0,-0x4(%rbp)
  mov    -0x18(%rbp),%rax
  mov    %rax,%rdi
  call   <buscar_entrada@plt>
  mov    %eax,-0x4(%rbp)
  mov    -0x20(%rbp),%rdx
  mov    -0x4(%rbp),%eax
  mov    %rdx,%rsi
  mov    %eax,%edi
  call   <mi_stat_f@plt>
  nop
  leave
  ret
```

assistant: ```c
int mi_stat(char *path, struct i_stat *p_stat) {
  int b;
  int i_inode = 0;
  i_inode = buscar_entrada(path);
  mi_stat_f(i_inode, p_stat);
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<mi_stat>:
  endbr64
  push   %rbx
  mov    %rsi,%rbx
  call   <buscar_entrada@plt>
  mov    %eax,%edi
  mov    %rbx,%rsi
  call   <mi_stat_f@plt>
  pop    %rbx
  ret
```

assistant: ```c
int mi_stat(char *path, struct i_stat *p_stat) {
  int b;
  int i_inode = 0;
  i_inode = buscar_entrada(path);
  mi_stat_f(i_inode, p_stat);
}
```
user: 请将这段汇编代码片段转换成等效的C代码:

```asm
<mi_stat>:
  endbr64
  push   %rbp
  mov    %rsi,%rbp
  call   <buscar_entrada@plt>
  mov    %rbp,%rsi
  pop    %rbp
  mov    %eax,%edi
  jmp    1070 <mi_stat_f@plt>
```

assistant: ```c
int mi_stat(char *path, struct i_stat *p_stat) {
  int b;
  int i_inode = 0;
  i_inode = buscar_entrada(path);
  mi_stat_f(i_inode, p_stat);
}
```
user: Translate the below assembly code into C programming language:

```asm
<mi_stat>:
  endbr64
  push   %rbp
  mov    %rsi,%rbp
  call   <buscar_entrada@plt>
  mov    %rbp,%rsi
  pop    %rbp
  mov    %eax,%edi
  jmp    1070 <mi_stat_f@plt>
```

assistant: ```c
int mi_stat(char *path, struct i_stat *p_stat) {
  int b;
  int i_inode = 0;
  i_inode = buscar_entrada(path);
  mi_stat_f(i_inode, p_stat);
}
```
user: What is the c source code of the assembly code below:

```asm
<decode2to1>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x20,%rsp
  mov    %rdi,-0x18(%rbp)
  mov    %rsi,-0x20(%rbp)
  mov    -0x18(%rbp),%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  mov    %eax,%edi
  call   <codetovalue@plt>
  mov    %rax,-0x8(%rbp)
  cmpq   $0x0,-0x8(%rbp)
  jns    L9
  mov    -0x8(%rbp),%rax
  jmp    L22
L9:
  mov    -0x8(%rbp),%rax
  shl    $0x2,%eax
  mov    %eax,-0xc(%rbp)
  mov    -0x18(%rbp),%rax
  add    $0x1,%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  mov    %eax,%edi
  call   <codetovalue@plt>
  mov    %rax,-0x8(%rbp)
  cmpq   $0x0,-0x8(%rbp)
  jns    L38
  mov    -0x8(%rbp),%rax
  jmp    L22
L38:
  mov    -0x8(%rbp),%rax
  sar    $0x4,%eax
  or     %eax,-0xc(%rbp)
  mov    -0x20(%rbp),%rax
  mov    -0xc(%rbp),%edx
  mov    %edx,(%rax)
  mov    $0x0,%eax
L22:
  leave
  ret
```

assistant: ```c
int decode2to1(const char *src, uint8_t *dest) {
  uint32_t b32;
  int32_t bits;
  bits = codetovalue(src[0]);
  if (bits < 0) {
    return bits;
  }
  b32 = (uint32_t)bits << 2;
  bits = codetovalue(src[1]);
  if (bits < 0) {
    return bits;
  }
  b32 |= ((uint32_t)bits) >> 4;
  dest[0] = b32;
  return 0;
}
```
user: 请从给定的汇编指令推导出C源代码：

```asm
<decode2to1>:
  endbr64
  push   %r12
  push   %rbp
  push   %rbx
  mov    %rdi,%r12
  mov    %rsi,%rbp
  movsbl (%rdi),%edi
  call   <codetovalue@plt>
  mov    %rax,%rbx
  test   %rax,%rax
  js     L19
  movsbl 0x1(%r12),%edi
  call   <codetovalue@plt>
  test   %rax,%rax
  js     L19
  shl    $0x2,%ebx
  sar    $0x4,%eax
  or     %ebx,%eax
  mov    %eax,0x0(%rbp)
  mov    $0x0,%eax
L19:
  pop    %rbx
  pop    %rbp
  pop    %r12
  ret
```

assistant: ```c
int decode2to1(const char *src, uint8_t *dest) {
  uint32_t b32;
  int32_t bits;
  bits = codetovalue(src[0]);
  if (bits < 0) {
    return bits;
  }
  b32 = (uint32_t)bits << 2;
  bits = codetovalue(src[1]);
  if (bits < 0) {
    return bits;
  }
  b32 |= ((uint32_t)bits) >> 4;
  dest[0] = b32;
  return 0;
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<decode2to1>:
  endbr64
  push   %r12
  mov    %rdi,%r12
  push   %rbp
  mov    %rsi,%rbp
  push   %rbx
  movsbl (%rdi),%edi
  call   <codetovalue@plt>
  mov    %rax,%rbx
  test   %rax,%rax
  js     L19
  movsbl 0x1(%r12),%edi
  call   <codetovalue@plt>
  test   %rax,%rax
  js     L19
  shl    $0x2,%ebx
  sar    $0x4,%eax
  or     %ebx,%eax
  mov    %eax,0x0(%rbp)
  xor    %eax,%eax
L19:
  pop    %rbx
  pop    %rbp
  pop    %r12
  ret
```

assistant: ```c
int decode2to1(const char *src, uint8_t *dest) {
  uint32_t b32;
  int32_t bits;
  bits = codetovalue(src[0]);
  if (bits < 0) {
    return bits;
  }
  b32 = (uint32_t)bits << 2;
  bits = codetovalue(src[1]);
  if (bits < 0) {
    return bits;
  }
  b32 |= ((uint32_t)bits) >> 4;
  dest[0] = b32;
  return 0;
}
```
user: 请从给定的汇编指令推导出C源代码:

```asm
<decode2to1>:
  endbr64
  push   %r12
  mov    %rdi,%r12
  push   %rbp
  mov    %rsi,%rbp
  push   %rbx
  movsbl (%rdi),%edi
  call   <codetovalue@plt>
  mov    %rax,%rbx
  test   %rax,%rax
  js     L15
  movsbl 0x1(%r12),%edi
  call   <codetovalue@plt>
  test   %rax,%rax
  js     L15
  shl    $0x2,%ebx
  sar    $0x4,%eax
  or     %ebx,%eax
  mov    %eax,0x0(%rbp)
  xor    %eax,%eax
L15:
  pop    %rbx
  pop    %rbp
  pop    %r12
  ret
```

assistant: ```c
int decode2to1(const char *src, uint8_t *dest) {
  uint32_t b32;
  int32_t bits;
  bits = codetovalue(src[0]);
  if (bits < 0) {
    return bits;
  }
  b32 = (uint32_t)bits << 2;
  bits = codetovalue(src[1]);
  if (bits < 0) {
    return bits;
  }
  b32 |= ((uint32_t)bits) >> 4;
  dest[0] = b32;
  return 0;
}
```
user: 请从给定的汇编指令推导出C源代码:

```asm
<gradY32>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x40,%rsp
  mov    %rdi,-0x28(%rbp)
  mov    %rsi,-0x30(%rbp)
  mov    %edx,-0x34(%rbp)
  mov    %ecx,-0x38(%rbp)
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
  movl   $0xffffffff,-0x14(%rbp)
  movl   $0x0,-0x10(%rbp)
  movl   $0x1,-0xc(%rbp)
  lea    -0x14(%rbp),%rdi
  mov    -0x38(%rbp),%ecx
  mov    -0x34(%rbp),%edx
  mov    -0x30(%rbp),%rsi
  mov    -0x28(%rbp),%rax
  sub    $0x8,%rsp
  push   $0x1
  mov    $0x3,%r9d
  mov    %rdi,%r8
  mov    %rax,%rdi
  call   <do_y_filter32@plt>
  add    $0x10,%rsp
  mov    $0x1,%eax
  mov    -0x8(%rbp),%rdx
  sub    %fs:0x28,%rdx
  je     L0
  call   <__stack_chk_fail@plt>
L0:
  leave
  ret
```

assistant: ```c
int gradY32(int *src, int *dst, int w, int h) {
  int mask[3] = {-1, 0, 1};
  do_y_filter32(src, dst, w, h, mask, 3, 1);
  return 1;
}
```
user: 下面的汇编指令对应的C源代码是什么：

```asm
<gradY32>:
  endbr64
  sub    $0x30,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x20(%rsp)
  xor    %eax,%eax
  movl   $0xffffffff,0x14(%rsp)
  movl   $0x0,0x18(%rsp)
  movl   $0x1,0x1c(%rsp)
  push   $0x1
  mov    $0x3,%r9d
  lea    0x1c(%rsp),%r8
  call   <do_y_filter32@plt>
  add    $0x10,%rsp
  mov    0x18(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L8
  mov    $0x1,%eax
  add    $0x28,%rsp
  ret
L8:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
int gradY32(int *src, int *dst, int w, int h) {
  int mask[3] = {-1, 0, 1};
  do_y_filter32(src, dst, w, h, mask, 3, 1);
  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
<gradY32>:
  endbr64
  sub    $0x30,%rsp
  mov    $0x3,%r9d
  mov    %fs:0x28,%rax
  mov    %rax,0x20(%rsp)
  mov    $0xffffffff,%eax
  movl   $0x1,0x1c(%rsp)
  mov    %rax,0x14(%rsp)
  push   $0x1
  lea    0x1c(%rsp),%r8
  call   <do_y_filter32@plt>
  pop    %rax
  pop    %rdx
  mov    0x18(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L3
  mov    $0x1,%eax
  add    $0x28,%rsp
  ret
L3:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
int gradY32(int *src, int *dst, int w, int h) {
  int mask[3] = {-1, 0, 1};
  do_y_filter32(src, dst, w, h, mask, 3, 1);
  return 1;
}
```
user: What is the c source code of the assembly code below:

```asm
<gradY32>:
  endbr64
  sub    $0x30,%rsp
  mov    $0x3,%r9d
  mov    %fs:0x28,%rax
  mov    %rax,0x20(%rsp)
  xor    %eax,%eax
  mov    D1(%rip),%rax
  movl   $0x1,0x18(%rsp)
  mov    %rax,0x10(%rsp)
  push   $0x1
  lea    0x18(%rsp),%r8
  call   <do_y_filter32@plt>
  pop    %rax
  pop    %rdx
  mov    0x18(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L0
  mov    $0x1,%eax
  add    $0x28,%rsp
  ret
L0:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: parse_data
arguments: data_label: D1
datatype: byte[8]

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

assistant: ```c
int gradY32(int *src, int *dst, int w, int h) {
  int mask[3] = {-1, 0, 1};
  do_y_filter32(src, dst, w, h, mask, 3, 1);
  return 1;
}
```
user: 请从给定的汇编指令推导出C源代码:

```asm
<fs_rename>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x10,%rsp
  mov    %rdi,-0x8(%rbp)
  mov    %rsi,-0x10(%rbp)
  mov    -0x10(%rbp),%rdx
  mov    -0x8(%rbp),%rax
  mov    %rdx,%rsi
  mov    %rax,%rdi
  call   <rename@plt>
  test   %rax,%rax
  je     L15
  mov    $0x1,%eax
  jmp    L8
L15:
  mov    $0x0,%eax
L8:
  leave
  ret
```

assistant: ```c
int fs_rename(const char *oldname, const char *newname) {
  if (rename(oldname, newname) != 0)
    return 1;
  return 0;
}
```
user: 请将以下的汇编代码转换成C语言代码：

```asm
<fs_rename>:
  endbr64
  sub    $0x8,%rsp
  call   <rename@plt>
  test   %rax,%rax
  setne  %al
  movzbl %al,%eax
  add    $0x8,%rsp
  ret
```

assistant: ```c
int fs_rename(const char *oldname, const char *newname) {
  if (rename(oldname, newname) != 0)
    return 1;
  return 0;
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<fs_rename>:
  endbr64
  sub    $0x8,%rsp
  call   <rename@plt>
  test   %rax,%rax
  setne  %al
  add    $0x8,%rsp
  movzbl %al,%eax
  ret
```

assistant: ```c
int fs_rename(const char *oldname, const char *newname) {
  if (rename(oldname, newname) != 0)
    return 1;
  return 0;
}
```
user: 请将这段汇编代码片段转换成等效的C代码：

```asm
<fs_rename>:
  endbr64
  sub    $0x8,%rsp
  call   <rename@plt>
  test   %rax,%rax
  setne  %al
  add    $0x8,%rsp
  movzbl %al,%eax
  ret
```

assistant: ```c
int fs_rename(const char *oldname, const char *newname) {
  if (rename(oldname, newname) != 0)
    return 1;
  return 0;
}
```
user: 下面的汇编指令对应的C源代码是什么：

```asm
<getop>:
  endbr64
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x8,%rsp
  mov    %rdi,%rbp
L129:
  mov    $0x0,%eax
  call   <getch@plt>
  mov    %eax,%ebx
  mov    %al,0x0(%rbp)
  cmp    $0x9,%eax
  je     L129
  cmp    $0x20,%al
  je     L129
  movb   $0x0,0x1(%rbp)
  movsbl %al,%r12d
  mov    %r12d,%edi
  call   <isalpha@plt>
  test   %rax,%rax
  jne    L83
  mov    %r12d,%edi
  call   <isdigit@plt>
  cmp    $0x2e,%ebx
  je     L16
  test   %rax,%rax
  je     L105
L16:
  mov    %r12d,%edi
  call   <isdigit@plt>
  mov    $0x0,%r13d
  test   %rax,%rax
  je     L38
  mov    $0x1,%r12d
L78:
  mov    $0x0,%eax
  call   <getch@plt>
  mov    %eax,%ebx
  mov    %r12d,%r13d
  mov    %al,0x0(%rbp,%r12,1)
  movsbl %al,%edi
  call   <isdigit@plt>
  add    $0x1,%r12
  test   %rax,%rax
  jne    L78
L38:
  cmp    $0x2e,%ebx
  je     L2
L111:
  movslq %r13d,%r13
  movb   $0x0,0x0(%rbp,%r13,1)
  mov    D12(%rip),%rax
  cmp    %ebx,(%rax)
  jne    L36
  mov    $0x30,%ebx
L105:
  mov    %ebx,%eax
  add    $0x8,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
L83:
  add    $0x1,%rbp
L86:
  mov    $0x0,%eax
  call   <getch@plt>
  mov    %eax,%r12d
  mov    %rbp,%rbx
  mov    %al,0x0(%rbp)
  movsbl %al,%edi
  call   <isalpha@plt>
  add    $0x1,%rbp
  test   %rax,%rax
  jne    L86
  movb   $0x0,(%rbx)
  mov    $0x66,%ebx
  mov    D12(%rip),%rax
  cmp    %r12d,(%rax)
  je     L105
  mov    %r12d,%edi
  call   <ungetch@plt>
  jmp    L105
L2:
  lea    0x1(%r13),%r12d
  movslq %r12d,%r12
L89:
  mov    $0x0,%eax
  call   <getch@plt>
  mov    %eax,%ebx
  mov    %r12d,%r13d
  mov    %al,0x0(%rbp,%r12,1)
  movsbl %al,%edi
  call   <isdigit@plt>
  add    $0x1,%r12
  test   %rax,%rax
  jne    L89
  jmp    L111
L36:
  mov    %ebx,%edi
  call   <ungetch@plt>
  mov    $0x30,%ebx
  jmp    L105
```

assistant: ```c
int getop(char s[]) {
  int i, c;
  while ((s[0] = c = getch()) == ' ' || c == '\t') {
    ;
  }
  s[1] = '\0';
  i = 0;
  if (isalpha(c)) {
    while (isalpha(s[++i] = c = getch())) {
      ;
    }
    s[i] = '\0';
    if (c != EOF) {
      ungetch(c);
    }
    return 'f';
  }
  if (!isdigit(c) && c != '.') {
    return c;
  }
  i = 0;
  if (isdigit(c)) {
    while (isdigit(s[++i] = c = getch())) {
      ;
    }
  }
  if (c == '.') {
    while (isdigit(s[++i] = c = getch())) {
      ;
    }
  }
  s[i] = '\0';
  if (c != EOF) {
    ungetch(c);
  }
  return '0';
}
```
user: Translate the below assembly code into C programming language:

```asm
<getop>:
  endbr64
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  mov    %rdi,%rbx
  sub    $0x8,%rsp
  nopl   0x0(%rax)
L115:
  xor    %eax,%eax
  call   <getch@plt>
  mov    %al,(%rbx)
  mov    %eax,%r12d
  cmp    $0x20,%al
  je     L115
  cmp    $0x9,%eax
  je     L115
  movb   $0x0,0x1(%rbx)
  movsbl %al,%ebp
  mov    %ebp,%edi
  call   <isalpha@plt>
  test   %rax,%rax
  jne    L41
  mov    %ebp,%edi
  call   <isdigit@plt>
  test   %rax,%rax
  jne    L1
  cmp    $0x2e,%r12d
  jne    L15
  mov    %ebp,%edi
  xor    %r13d,%r13d
  call   <isdigit@plt>
  test   %rax,%rax
  jne    L147
L112:
  lea    0x1(%rbx,%r13,1),%rbx
  nopw   0x0(%rax,%rax,1)
L122:
  xor    %eax,%eax
  mov    %rbx,%rbp
  add    $0x1,%rbx
  call   <getch@plt>
  mov    %al,-0x1(%rbx)
  movsbl %al,%edi
  mov    %eax,%r12d
  call   <isdigit@plt>
  test   %rax,%rax
  jne    L122
  mov    D20(%rip),%rax
  movb   $0x0,0x0(%rbp)
  cmp    %r12d,(%rax)
  jne    L29
L79:
  add    $0x8,%rsp
  mov    $0x30,%r12d
  pop    %rbx
  mov    %r12d,%eax
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
  nopl   (%rax)
L1:
  mov    %ebp,%edi
  xor    %r13d,%r13d
  call   <isdigit@plt>
  test   %rax,%rax
  jne    L147
L88:
  movslq %r13d,%rbp
  add    %rbx,%rbp
  cmp    $0x2e,%r12d
  je     L112
  mov    D20(%rip),%rax
  movb   $0x0,0x0(%rbp)
  cmp    %r12d,(%rax)
  je     L79
L29:
  mov    %r12d,%edi
  mov    $0x30,%r12d
  call   <ungetch@plt>
L15:
  add    $0x8,%rsp
  mov    %r12d,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
  nopw   0x0(%rax,%rax,1)
L147:
  mov    $0x1,%ebp
  nopl   (%rax)
L45:
  xor    %eax,%eax
  movslq %ebp,%r13
  call   <getch@plt>
  mov    %al,(%rbx,%rbp,1)
  movsbl %al,%edi
  mov    %eax,%r12d
  add    $0x1,%rbp
  call   <isdigit@plt>
  test   %rax,%rax
  jne    L45
  jmp    L88
  nopl   0x0(%rax,%rax,1)
L41:
  add    $0x1,%rbx
  nopl   0x0(%rax)
L85:
  xor    %eax,%eax
  mov    %rbx,%r12
  add    $0x1,%rbx
  call   <getch@plt>
  mov    %al,-0x1(%rbx)
  movsbl %al,%edi
  mov    %eax,%ebp
  call   <isalpha@plt>
  test   %rax,%rax
  jne    L85
  mov    D20(%rip),%rax
  movb   $0x0,(%r12)
  mov    $0x66,%r12d
  cmp    %ebp,(%rax)
  je     L15
  mov    %ebp,%edi
  call   <ungetch@plt>
  add    $0x8,%rsp
  mov    %r12d,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
```

assistant: ```c
int getop(char s[]) {
  int i, c;
  while ((s[0] = c = getch()) == ' ' || c == '\t') {
    ;
  }
  s[1] = '\0';
  i = 0;
  if (isalpha(c)) {
    while (isalpha(s[++i] = c = getch())) {
      ;
    }
    s[i] = '\0';
    if (c != EOF) {
      ungetch(c);
    }
    return 'f';
  }
  if (!isdigit(c) && c != '.') {
    return c;
  }
  i = 0;
  if (isdigit(c)) {
    while (isdigit(s[++i] = c = getch())) {
      ;
    }
  }
  if (c == '.') {
    while (isdigit(s[++i] = c = getch())) {
      ;
    }
  }
  s[i] = '\0';
  if (c != EOF) {
    ungetch(c);
  }
  return '0';
}
```
user: Please show me the C implementation that matches the assembly code listed below:

```asm
<getop>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  mov    %rdi,%rbx
  sub    $0x8,%rsp
  nopl   (%rax)
L62:
  xor    %eax,%eax
  call   <getch@plt>
  mov    %al,(%rbx)
  mov    %eax,%r12d
  cmp    $0x20,%al
  je     L62
  cmp    $0x9,%eax
  je     L62
  movb   $0x0,0x1(%rbx)
  movsbl %al,%ebp
  mov    %ebp,%edi
  call   <isalpha@plt>
  test   %rax,%rax
  jne    L78
  mov    %ebp,%edi
  call   <isdigit@plt>
  test   %rax,%rax
  jne    L111
  cmp    $0x2e,%r12d
  jne    L2
  mov    %ebp,%edi
  xor    %r14d,%r14d
  call   <isdigit@plt>
  test   %rax,%rax
  jne    L48
L74:
  movslq %r14d,%r14
  lea    0x1(%rbx,%r14,1),%rbx
  nopl   0x0(%rax)
L113:
  xor    %eax,%eax
  mov    %rbx,%r13
  add    $0x1,%rbx
  call   <getch@plt>
  mov    %al,-0x1(%rbx)
  movsbl %al,%edi
  mov    %eax,%r12d
  call   <isdigit@plt>
  test   %rax,%rax
  jne    L113
  jmp    L143
  nopl   0x0(%rax,%rax,1)
L111:
  mov    %ebp,%edi
  call   <isdigit@plt>
  test   %rax,%rax
  je     L19
L48:
  mov    %ebx,%r15d
  lea    0x1(%rbx),%rbp
  neg    %r15d
  nopw   0x0(%rax,%rax,1)
L106:
  xor    %eax,%eax
  lea    (%r15,%rbp,1),%r14d
  mov    %rbp,%r13
  add    $0x1,%rbp
  call   <getch@plt>
  mov    %al,-0x1(%rbp)
  movsbl %al,%edi
  mov    %eax,%r12d
  call   <isdigit@plt>
  test   %rax,%rax
  jne    L106
L25:
  cmp    $0x2e,%r12d
  je     L74
L143:
  mov    D2(%rip),%rax
  movb   $0x0,0x0(%r13)
  cmp    %r12d,(%rax)
  je     L49
  mov    %r12d,%edi
  mov    $0x30,%r12d
  call   <ungetch@plt>
L2:
  add    $0x8,%rsp
  mov    %r12d,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L78:
  add    $0x1,%rbx
  nopl   0x0(%rax)
L94:
  xor    %eax,%eax
  mov    %rbx,%r12
  add    $0x1,%rbx
  call   <getch@plt>
  mov    %al,-0x1(%rbx)
  movsbl %al,%edi
  mov    %eax,%ebp
  call   <isalpha@plt>
  test   %rax,%rax
  jne    L94
  mov    D2(%rip),%rax
  movb   $0x0,(%r12)
  mov    $0x66,%r12d
  cmp    %ebp,(%rax)
  je     L2
  mov    %ebp,%edi
  call   <ungetch@plt>
  jmp    L2
  nopw   0x0(%rax,%rax,1)
L49:
  mov    $0x30,%r12d
  jmp    L2
L19:
  mov    %rbx,%r13
  xor    %r14d,%r14d
  jmp    L25
```

assistant: ```c
int getop(char s[]) {
  int i, c;
  while ((s[0] = c = getch()) == ' ' || c == '\t') {
    ;
  }
  s[1] = '\0';
  i = 0;
  if (isalpha(c)) {
    while (isalpha(s[++i] = c = getch())) {
      ;
    }
    s[i] = '\0';
    if (c != EOF) {
      ungetch(c);
    }
    return 'f';
  }
  if (!isdigit(c) && c != '.') {
    return c;
  }
  i = 0;
  if (isdigit(c)) {
    while (isdigit(s[++i] = c = getch())) {
      ;
    }
  }
  if (c == '.') {
    while (isdigit(s[++i] = c = getch())) {
      ;
    }
  }
  s[i] = '\0';
  if (c != EOF) {
    ungetch(c);
  }
  return '0';
}
```
user: 请将这段汇编代码片段转换成等效的C代码:

```asm
<compare_sequence>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  push   %rbx
  sub    $0x38,%rsp
  mov    %rdi,-0x28(%rbp)
  mov    %rsi,-0x30(%rbp)
  mov    %edx,-0x34(%rbp)
  movl   $0x0,-0x18(%rbp)
  movl   $0x0,-0x14(%rbp)
  movl   $0x0,-0x18(%rbp)
  jmp    L17
L3:
  mov    -0x18(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x28(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  mov    %eax,%edi
  call   <tolower@plt>
  mov    %rax,%rbx
  mov    -0x18(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x30(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  mov    %eax,%edi
  call   <tolower@plt>
  cmp    %rax,%rbx
  je     L22
  addl   $0x1,-0x14(%rbp)
L22:
  addl   $0x1,-0x18(%rbp)
L17:
  mov    -0x18(%rbp),%eax
  cmp    -0x34(%rbp),%eax
  jl     L3
  mov    -0x14(%rbp),%eax
  mov    -0x8(%rbp),%rbx
  leave
  ret
```

assistant: ```c
int compare_sequence(char *a, char *b, int l) {
  int i = 0;
  int differences = 0;
  for (i = 0; i < l; i++) {
    if (tolower(a[i]) != tolower(b[i])) {
      differences++;
    }
  }
  return differences;
}
```
user: 请从给定的汇编指令推导出C源代码：

```asm
<compare_sequence>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x8,%rsp
  test   %edx,%edx
  jle    L12
  mov    %rdi,%r14
  mov    %rsi,%r15
  mov    %edx,%r13d
  mov    $0x0,%ebx
  mov    $0x0,%r12d
L23:
  movsbl (%r14,%rbx,1),%edi
  call   <tolower@plt>
  mov    %rax,%rbp
  movsbl (%r15,%rbx,1),%edi
  call   <tolower@plt>
  cmp    %rax,%rbp
  setne  %al
  movzbl %al,%eax
  add    %eax,%r12d
  add    $0x1,%rbx
  cmp    %r13,%rbx
  jne    L23
L5:
  mov    %r12d,%eax
  add    $0x8,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L12:
  mov    $0x0,%r12d
  jmp    L5
```

assistant: ```c
int compare_sequence(char *a, char *b, int l) {
  int i = 0;
  int differences = 0;
  for (i = 0; i < l; i++) {
    if (tolower(a[i]) != tolower(b[i])) {
      differences++;
    }
  }
  return differences;
}
```
user: 请将以下的汇编代码转换成C语言代码:

```asm
<compare_sequence>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x8,%rsp
  test   %edx,%edx
  jle    L28
  mov    %rdi,%r14
  mov    %rsi,%r15
  movslq %edx,%r13
  xor    %ebx,%ebx
  xor    %r12d,%r12d
  nopl   0x0(%rax)
L15:
  movsbl (%r14,%rbx,1),%edi
  call   <tolower@plt>
  movsbl (%r15,%rbx,1),%edi
  mov    %rax,%rbp
  call   <tolower@plt>
  cmp    %rax,%rbp
  setne  %al
  add    $0x1,%rbx
  movzbl %al,%eax
  add    %eax,%r12d
  cmp    %r13,%rbx
  jne    L15
L0:
  add    $0x8,%rsp
  mov    %r12d,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
  cs nopw 0x0(%rax,%rax,1)
L28:
  xor    %r12d,%r12d
  jmp    L0
```

assistant: ```c
int compare_sequence(char *a, char *b, int l) {
  int i = 0;
  int differences = 0;
  for (i = 0; i < l; i++) {
    if (tolower(a[i]) != tolower(b[i])) {
      differences++;
    }
  }
  return differences;
}
```