ylfeng/ReF-Decompile-dataset huggingface dataset:
user: Please show me the C implementation that matches the assembly code listed below:

```asm
<substring>:
  endbr64
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x8,%rsp
  mov    %rdi,%r12
  mov    %esi,%ebx
  sub    %esi,%edx
  lea    0x1(%rdx),%r13d
  lea    0x2(%rdx),%edi
  call   <malloc@plt>
  mov    %rax,%rbp
  movslq %ebx,%rbx
  lea    (%r12,%rbx,1),%rsi
  mov    %r13d,%edx
  mov    %rax,%rdi
  call   <strncpy@plt>
  movslq %r13d,%r13
  movb   $0x0,0x0(%rbp,%r13,1)
  mov    %rbp,%rax
  add    $0x8,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
```

assistant: ```c
char *substring(char *pattern, int start, int end) {
  int length = end - start + 1;
  char *new = malloc(sizeof(char) * length + 1);
  strncpy(new, pattern + start, length);
  new[length] = '\0';
  return new;
}
```
user: Translate the below assembly code into C programming language:

```asm
<substring>:
  endbr64
  push   %r13
  push   %r12
  push   %rbp
  mov    %rdi,%rbp
  push   %rbx
  movslq %esi,%rbx
  sub    %ebx,%edx
  lea    0x2(%rdx),%edi
  lea    0x1(%rdx),%r12d
  sub    $0x8,%rsp
  call   <malloc@plt>
  lea    0x0(%rbp,%rbx,1),%rsi
  mov    %r12d,%edx
  movslq %r12d,%r12
  mov    %rax,%r13
  mov    %rax,%rdi
  call   <strncpy@plt>
  movb   $0x0,0x0(%r13,%r12,1)
  add    $0x8,%rsp
  mov    %r13,%rax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
```

assistant: ```c
char *substring(char *pattern, int start, int end) {
  int length = end - start + 1;
  char *new = malloc(sizeof(char) * length + 1);
  strncpy(new, pattern + start, length);
  new[length] = '\0';
  return new;
}
```
user: Please show me the C implementation that matches the assembly code listed below:

```asm
<substring>:
  endbr64
  push   %r13
  push   %r12
  push   %rbp
  mov    %rdi,%rbp
  push   %rbx
  movslq %esi,%rbx
  sub    %ebx,%edx
  lea    0x2(%rdx),%edi
  lea    0x1(%rdx),%r12d
  sub    $0x8,%rsp
  call   <malloc@plt>
  lea    0x0(%rbp,%rbx,1),%rsi
  mov    %r12d,%edx
  movslq %r12d,%r12
  mov    %rax,%r13
  mov    %rax,%rdi
  call   <strncpy@plt>
  movb   $0x0,0x0(%r13,%r12,1)
  add    $0x8,%rsp
  mov    %r13,%rax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
```

assistant: ```c
char *substring(char *pattern, int start, int end) {
  int length = end - start + 1;
  char *new = malloc(sizeof(char) * length + 1);
  strncpy(new, pattern + start, length);
  new[length] = '\0';
  return new;
}
```
user: 请将这段汇编代码片段转换成等效的C代码:

```asm
<add_in_similarity_matrix>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    %rdi,-0x18(%rbp)
  mov    %rsi,-0x20(%rbp)
  mov    %edx,-0x24(%rbp)
  movl   $0x0,-0x8(%rbp)
  jmp    L6
L20:
  movl   $0x0,-0x4(%rbp)
  jmp    L22
L13:
  mov    -0x8(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%rdx
  mov    -0x4(%rbp),%eax
  cltq
  shl    $0x2,%rax
  add    %rdx,%rax
  movss  (%rax),%xmm1
  mov    -0x8(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x20(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%rdx
  mov    -0x4(%rbp),%eax
  cltq
  shl    $0x2,%rax
  add    %rdx,%rax
  movss  (%rax),%xmm0
  mov    -0x8(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%rdx
  mov    -0x4(%rbp),%eax
  cltq
  shl    $0x2,%rax
  add    %rdx,%rax
  addss  %xmm1,%xmm0
  movss  %xmm0,(%rax)
  addl   $0x1,-0x4(%rbp)
L22:
  mov    -0x4(%rbp),%eax
  cmp    -0x24(%rbp),%eax
  jl     L13
  addl   $0x1,-0x8(%rbp)
L6:
  mov    -0x8(%rbp),%eax
  cmp    -0x24(%rbp),%eax
  jl     L20
  nop
  pop    %rbp
  ret
```

assistant: ```c
void add_in_similarity_matrix(float **full_matrix, float **matrix, int num_dims) {
  int i, j;
  for (i = 0; i < num_dims; i++) {
    for (j = 0; j < num_dims; j++) {
      full_matrix[i][j] += matrix[i][j];
    }
  }
  return;
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<add_in_similarity_matrix>:
  endbr64
  test   %edx,%edx
  jle    L4
  mov    %rdi,%r8
  lea    -0x1(%rdx),%eax
  lea    0x8(%rdi,%rax,8),%r9
  mov    %edx,%edx
  lea    0x0(,%rdx,4),%rdi
L7:
  mov    $0x0,%eax
L14:
  mov    %rax,%rdx
  add    (%r8),%rdx
  mov    (%rsi),%rcx
  movss  (%rdx),%xmm0
  addss  (%rcx,%rax,1),%xmm0
  movss  %xmm0,(%rdx)
  add    $0x4,%rax
  cmp    %rax,%rdi
  jne    L14
  add    $0x8,%r8
  add    $0x8,%rsi
  cmp    %r9,%r8
  jne    L7
L4:
  ret
```

assistant: ```c
void add_in_similarity_matrix(float **full_matrix, float **matrix, int num_dims) {
  int i, j;
  for (i = 0; i < num_dims; i++) {
    for (j = 0; j < num_dims; j++) {
      full_matrix[i][j] += matrix[i][j];
    }
  }
  return;
}
```
user: Please show me the C implementation that matches the assembly code listed below:

```asm
<add_in_similarity_matrix>:
  endbr64
  test   %edx,%edx
  jle    L1
  movslq %edx,%rcx
  xor    %r9d,%r9d
  xchg   %ax,%ax
L4:
  mov    (%rdi,%r9,8),%rdx
  mov    (%rsi,%r9,8),%r8
  xor    %eax,%eax
  nopw   0x0(%rax,%rax,1)
L20:
  movss  (%rdx,%rax,4),%xmm0
  addss  (%r8,%rax,4),%xmm0
  movss  %xmm0,(%rdx,%rax,4)
  add    $0x1,%rax
  cmp    %rax,%rcx
  jne    L20
  add    $0x1,%r9
  cmp    %r9,%rcx
  jne    L4
L1:
  ret
```

assistant: ```c
void add_in_similarity_matrix(float **full_matrix, float **matrix, int num_dims) {
  int i, j;
  for (i = 0; i < num_dims; i++) {
    for (j = 0; j < num_dims; j++) {
      full_matrix[i][j] += matrix[i][j];
    }
  }
  return;
}
```
user: Translate the below assembly code into C programming language:

```asm
<add_in_similarity_matrix>:
  endbr64
  test   %edx,%edx
  jle    L21
  mov    %edx,%eax
  mov    %rsi,%r11
  push   %r15
  mov    %edx,%r9d
  shr    $0x2,%eax
  push   %r14
  mov    %rdi,%r10
  mov    %edx,%r8d
  lea    -0x1(%rax),%esi
  push   %r13
  mov    %edx,%edi
  and    $0xfffffffc,%r9d
  push   %r12
  add    $0x1,%rsi
  xor    %ecx,%ecx
  push   %rbp
  shl    $0x4,%rsi
  lea    -0x1(%rdx),%ebp
  push   %rbx
  mov    %edx,%ebx
  and    $0x3,%ebx
  nopw   0x0(%rax,%rax,1)
L0:
  mov    (%r10,%rcx,8),%rdx
  mov    (%r11,%rcx,8),%r12
  mov    %rdx,%rax
  lea    0x4(%r12),%r13
  sub    %r13,%rax
  cmp    $0x8,%rax
  jbe    L6
  cmp    $0x1,%r8d
  je     L6
  cmp    $0x2,%ebp
  jbe    L128
  xor    %eax,%eax
  nopw   0x0(%rax,%rax,1)
L51:
  movups (%rdx,%rax,1),%xmm0
  movups (%r12,%rax,1),%xmm2
  addps  %xmm2,%xmm0
  movups %xmm0,(%rdx,%rax,1)
  add    $0x10,%rax
  cmp    %rsi,%rax
  jne    L51
  cmp    %r8d,%r9d
  je     L81
  mov    %ebx,%r14d
  cmp    $0x1,%ebx
  je     L4
  mov    %r9d,%r13d
  mov    %r9d,%eax
L10:
  lea    (%rdx,%r13,4),%r15
  movq   (%r12,%r13,4),%xmm0
  mov    %r14d,%r13d
  movq   (%r15),%xmm1
  and    $0xfffffffe,%r13d
  add    %r13d,%eax
  addps  %xmm1,%xmm0
  movlps %xmm0,(%r15)
  cmp    %r13d,%r14d
  je     L81
L124:
  cltq
  lea    (%rdx,%rax,4),%rdx
  movss  (%rdx),%xmm0
  addss  (%r12,%rax,4),%xmm0
  movss  %xmm0,(%rdx)
L81:
  add    $0x1,%rcx
  cmp    %rdi,%rcx
  jne    L0
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
  nopl   0x0(%rax)
L6:
  xor    %eax,%eax
  nopw   0x0(%rax,%rax,1)
L63:
  movss  (%rdx,%rax,4),%xmm0
  addss  (%r12,%rax,4),%xmm0
  movss  %xmm0,(%rdx,%rax,4)
  add    $0x1,%rax
  cmp    %rdi,%rax
  jne    L63
  jmp    L81
L128:
  mov    %r8d,%r14d
  xor    %r13d,%r13d
  xor    %eax,%eax
  jmp    L10
L4:
  mov    %r9d,%eax
  jmp    L124
L21:
  ret
```

assistant: ```c
void add_in_similarity_matrix(float **full_matrix, float **matrix, int num_dims) {
  int i, j;
  for (i = 0; i < num_dims; i++) {
    for (j = 0; j < num_dims; j++) {
      full_matrix[i][j] += matrix[i][j];
    }
  }
  return;
}
```
user: 下面的汇编指令对应的C源代码是什么:

```asm
<print_error_and_die>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    D28(%rip),%rax
  mov    (%rax),%rax
  test   %rax,%rax
  jne    L0
  mov    D5(%rip),%rax
  mov    (%rax),%rdx
  mov    D28(%rip),%rax
  mov    %rdx,(%rax)
L0:
  mov    $0x0,%edi
  call   <perror@plt>
  mov    D28(%rip),%rax
  mov    (%rax),%rax
  mov    %rax,%rdi
  call   <exit@plt>
  nop
  pop    %rbp
  ret
```

assistant: ```c
void print_error_and_die(void) {
  if (!errno)
    errno = ENOMEM;
  perror(NULL);
  exit(errno);
}
```
user: What is the c source code of the assembly code below:

```asm
<print_error_and_die>:
  endbr64
  sub    $0x8,%rsp
  mov    D18(%rip),%rax
  cmpq   $0x0,(%rax)
  jne    L2
  mov    D17(%rip),%rax
  mov    (%rax),%rdx
  mov    D18(%rip),%rax
  mov    %rdx,(%rax)
L2:
  mov    $0x0,%edi
  call   <perror@plt>
  mov    D18(%rip),%rax
  mov    (%rax),%rdi
  call   <exit@plt>
  add    $0x8,%rsp
  ret
```

assistant: ```c
void print_error_and_die(void) {
  if (!errno)
    errno = ENOMEM;
  perror(NULL);
  exit(errno);
}
```
user: 请从给定的汇编指令推导出C源代码：

```asm
<print_error_and_die>:
  endbr64
  push   %rbx
  mov    D11(%rip),%rbx
  cmpq   $0x0,(%rbx)
  jne    L3
  mov    D13(%rip),%rax
  mov    (%rax),%rax
  mov    %rax,(%rbx)
L3:
  xor    %edi,%edi
  call   <perror@plt>
  mov    (%rbx),%rdi
  pop    %rbx
  jmp    1070 <exit@plt>
```

assistant: ```c
void print_error_and_die(void) {
  if (!errno)
    errno = ENOMEM;
  perror(NULL);
  exit(errno);
}
```
user: 请将以下的汇编代码转换成C语言代码：

```asm
<print_error_and_die>:
  endbr64
  push   %rbx
  mov    D16(%rip),%rbx
  cmpq   $0x0,(%rbx)
  jne    L4
  mov    D12(%rip),%rax
  mov    (%rax),%rax
  mov    %rax,(%rbx)
L4:
  xor    %edi,%edi
  call   <perror@plt>
  mov    (%rbx),%rdi
  pop    %rbx
  jmp    1070 <exit@plt>
```

assistant: ```c
void print_error_and_die(void) {
  if (!errno)
    errno = ENOMEM;
  perror(NULL);
  exit(errno);
}
```
user: 提供的汇编代码用C语言表示会是什么样子：

```asm
<is_character>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x20,%rsp
  mov    %rdi,-0x18(%rbp)
  mov    -0x18(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x27,%al
  jne    L209
  addq   $0x1,-0x18(%rbp)
  mov    -0x18(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x5c,%al
  jne    L41
  jmp    L30
L209:
  mov    $0x0,%eax
  jmp    L98
L30:
  addq   $0x1,-0x18(%rbp)
  mov    -0x18(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x5c,%al
  je     L12
  mov    -0x18(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x27,%al
  je     L12
  mov    -0x18(%rbp),%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  sub    $0x30,%eax
  cmp    $0x9,%eax
  jbe    L2
L12:
  mov    -0x18(%rbp),%rax
  add    $0x1,%rax
  movzbl (%rax),%eax
  cmp    $0x27,%al
  jne    L2
  mov    -0x18(%rbp),%rax
  add    $0x2,%rax
  movzbl (%rax),%eax
  test   %al,%al
  jne    L2
  mov    $0x1,%eax
  jmp    L98
L2:
  mov    -0x18(%rbp),%rax
  mov    %rax,-0x8(%rbp)
  jmp    L233
L112:
  nop
  addq   $0x1,-0x18(%rbp)
L233:
  mov    -0x18(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x2f,%al
  jle    L107
  mov    -0x18(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x37,%al
  jle    L112
L107:
  mov    -0x8(%rbp),%rax
  cmp    -0x18(%rbp),%rax
  jae    L139
  mov    -0x8(%rbp),%rax
  add    $0x4,%rax
  cmp    %rax,-0x18(%rbp)
  jae    L139
  mov    -0x18(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x27,%al
  jne    L139
  mov    -0x18(%rbp),%rax
  add    $0x1,%rax
  movzbl (%rax),%eax
  test   %al,%al
  jne    L139
  mov    $0x1,%eax
  jmp    L98
L139:
  mov    $0x0,%eax
  jmp    L98
L41:
  mov    -0x18(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x5e,%al
  jne    L143
  addq   $0x1,-0x18(%rbp)
L143:
  mov    -0x18(%rbp),%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  mov    %eax,%edi
  call   <isprint@plt>
  test   %eax,%eax
  je     L92
  mov    -0x18(%rbp),%rax
  add    $0x1,%rax
  movzbl (%rax),%eax
  cmp    $0x27,%al
  jne    L92
  mov    -0x18(%rbp),%rax
  add    $0x2,%rax
  movzbl (%rax),%eax
  test   %al,%al
  jne    L92
  mov    $0x1,%eax
  jmp    L98
L92:
  mov    $0x0,%eax
L98:
  leave
  ret
```

assistant: ```c
int is_character(s)
char *s;
{
  char *x;
  if ((*s == '\''))
    s++;
  else
    return (0);
  if ((*s == '\\')) {
    s++;
    if (((s[0] == '\\') || (s[0] == '\'') || !isdigit(s[0])) && (s[1] == '\'') && !s[2])
      return (1);
    for (x = s; ('0' <= *s && *s <= '7'); s++)
      continue;
    return (x < s && s < (x + 4) && (s[0] == '\'') && !s[1]);
  } else if ((*s == '^'))
    s++;
  return (isprint(s[0]) && (s[1] == '\'') && !s[2]);
}
```
user: 请从给定的汇编指令推导出C源代码：

```asm
<is_character>:
  endbr64
  mov    $0x0,%eax
  cmpb   $0x27,(%rdi)
  jne    L65
  movzbl 0x1(%rdi),%eax
  cmp    $0x5c,%al
  je     L90
  push   %rbx
  cmp    $0x5e,%al
  sete   %bl
  movzbl %bl,%ebx
  lea    0x1(%rbx,%rdi,1),%rbx
  movsbl (%rbx),%edi
  call   <isprint@plt>
  test   %eax,%eax
  je     L66
  mov    $0x0,%eax
  cmpb   $0x27,0x1(%rbx)
  je     L49
L66:
  pop    %rbx
  ret
L90:
  movzbl 0x2(%rdi),%eax
  sub    $0x30,%eax
  cmp    $0x9,%al
  jbe    L19
  mov    $0x0,%eax
  cmpb   $0x27,0x3(%rdi)
  jne    L65
  cmpb   $0x0,0x4(%rdi)
  sete   %al
  movzbl %al,%eax
  ret
L19:
  cmp    $0x7,%al
  ja     L6
  lea    0x2(%rdi),%rcx
  mov    %rcx,%rax
L99:
  add    $0x1,%rax
  movzbl (%rax),%edx
  lea    -0x30(%rdx),%esi
  cmp    $0x7,%sil
  jbe    L99
  cmp    %rax,%rcx
  jae    L77
  cmp    $0x27,%dl
  jne    L108
  add    $0x6,%rdi
  cmp    %rdi,%rax
  jb     L102
L108:
  mov    $0x0,%eax
  ret
L102:
  cmpb   $0x0,0x1(%rax)
  sete   %al
  movzbl %al,%eax
  ret
L49:
  cmpb   $0x0,0x2(%rbx)
  sete   %al
  movzbl %al,%eax
  jmp    L66
L6:
  mov    $0x0,%eax
  ret
L77:
  mov    $0x0,%eax
  ret
L65:
  ret
```

assistant: ```c
int is_character(s)
char *s;
{
  char *x;
  if ((*s == '\''))
    s++;
  else
    return (0);
  if ((*s == '\\')) {
    s++;
    if (((s[0] == '\\') || (s[0] == '\'') || !isdigit(s[0])) && (s[1] == '\'') && !s[2])
      return (1);
    for (x = s; ('0' <= *s && *s <= '7'); s++)
      continue;
    return (x < s && s < (x + 4) && (s[0] == '\'') && !s[1]);
  } else if ((*s == '^'))
    s++;
  return (isprint(s[0]) && (s[1] == '\'') && !s[2]);
}
```
user: 请将这段汇编代码片段转换成等效的C代码:

```asm
<is_character>:
  endbr64
  xor    %eax,%eax
  cmpb   $0x27,(%rdi)
  je     L115
  ret
  nopl   0x0(%rax)
L115:
  movzbl 0x1(%rdi),%edx
  cmp    $0x5c,%dl
  je     L38
  push   %rbx
  lea    0x1(%rdi),%rbx
  cmp    $0x5e,%dl
  jne    L8
  movzbl 0x2(%rdi),%edx
  lea    0x2(%rdi),%rbx
L8:
  movsbl %dl,%edi
  call   <isprint@plt>
  test   %eax,%eax
  je     L75
  xor    %eax,%eax
  cmpb   $0x27,0x1(%rbx)
  jne    L75
  xor    %eax,%eax
  cmpb   $0x0,0x2(%rbx)
  sete   %al
L75:
  pop    %rbx
  ret
  nopw   0x0(%rax,%rax,1)
L38:
  movzbl 0x2(%rdi),%esi
  lea    -0x30(%rsi),%edx
  cmp    $0x9,%dl
  ja     L4
  cmp    $0x7,%dl
  ja     L17
  lea    0x2(%rdi),%rcx
  mov    %rcx,%rax
L90:
  movzbl 0x1(%rax),%edx
  add    $0x1,%rax
  lea    -0x30(%rdx),%esi
  cmp    $0x7,%sil
  jbe    L90
  cmp    %rax,%rcx
  jae    L96
  add    $0x6,%rdi
  cmp    %rdi,%rax
  jae    L96
  cmp    $0x27,%dl
  je     L29
L96:
  xor    %eax,%eax
  ret
  nop
L4:
  cmpb   $0x27,0x3(%rdi)
  je     L100
  ret
  nopw   0x0(%rax,%rax,1)
L100:
  xor    %eax,%eax
  cmpb   $0x0,0x4(%rdi)
  sete   %al
  ret
  nopw   0x0(%rax,%rax,1)
L29:
  cmpb   $0x0,0x1(%rax)
  sete   %al
  movzbl %al,%eax
  ret
L17:
  ret
```

assistant: ```c
int is_character(s)
char *s;
{
  char *x;
  if ((*s == '\''))
    s++;
  else
    return (0);
  if ((*s == '\\')) {
    s++;
    if (((s[0] == '\\') || (s[0] == '\'') || !isdigit(s[0])) && (s[1] == '\'') && !s[2])
      return (1);
    for (x = s; ('0' <= *s && *s <= '7'); s++)
      continue;
    return (x < s && s < (x + 4) && (s[0] == '\'') && !s[1]);
  } else if ((*s == '^'))
    s++;
  return (isprint(s[0]) && (s[1] == '\'') && !s[2]);
}
```
user: 请将以下的汇编代码转换成C语言代码：

```asm
<is_character>:
  endbr64
  xor    %eax,%eax
  cmpb   $0x27,(%rdi)
  je     L5
  ret
  nopl   0x0(%rax)
L5:
  movzbl 0x1(%rdi),%edx
  cmp    $0x5c,%dl
  je     L37
  push   %rbx
  lea    0x1(%rdi),%rbx
  cmp    $0x5e,%dl
  jne    L102
  movzbl 0x2(%rdi),%edx
  lea    0x2(%rdi),%rbx
L102:
  movsbl %dl,%edi
  call   <isprint@plt>
  test   %eax,%eax
  je     L49
  xor    %eax,%eax
  cmpb   $0x27,0x1(%rbx)
  jne    L49
  xor    %eax,%eax
  cmpb   $0x0,0x2(%rbx)
  sete   %al
L49:
  pop    %rbx
  ret
  nopw   0x0(%rax,%rax,1)
L37:
  movzbl 0x2(%rdi),%esi
  lea    -0x30(%rsi),%edx
  cmp    $0x9,%dl
  ja     L43
  cmp    $0x7,%dl
  ja     L62
  lea    0x2(%rdi),%rcx
  mov    %rcx,%rax
L92:
  movzbl 0x1(%rax),%edx
  add    $0x1,%rax
  lea    -0x30(%rdx),%esi
  cmp    $0x7,%sil
  jbe    L92
  cmp    %rax,%rcx
  jae    L61
  add    $0x6,%rdi
  cmp    %rdi,%rax
  jae    L61
  cmp    $0x27,%dl
  je     L71
L61:
  xor    %eax,%eax
  ret
  nop
L43:
  cmpb   $0x27,0x3(%rdi)
  je     L112
  ret
  nopw   0x0(%rax,%rax,1)
L112:
  xor    %eax,%eax
  cmpb   $0x0,0x4(%rdi)
  sete   %al
  ret
  nopw   0x0(%rax,%rax,1)
L71:
  cmpb   $0x0,0x1(%rax)
  sete   %al
  movzbl %al,%eax
  ret
L62:
  ret
```

assistant: ```c
int is_character(s)
char *s;
{
  char *x;
  if ((*s == '\''))
    s++;
  else
    return (0);
  if ((*s == '\\')) {
    s++;
    if (((s[0] == '\\') || (s[0] == '\'') || !isdigit(s[0])) && (s[1] == '\'') && !s[2])
      return (1);
    for (x = s; ('0' <= *s && *s <= '7'); s++)
      continue;
    return (x < s && s < (x + 4) && (s[0] == '\'') && !s[1]);
  } else if ((*s == '^'))
    s++;
  return (isprint(s[0]) && (s[1] == '\'') && !s[2]);
}
```
user: What would the C source look like for the assembly code provided here?

```asm
<serial_open>:
  endbr64
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x20,%rsp
  mov    %esi,%r12d
  mov    %fs:0x28,%rax
  mov    %rax,0x18(%rsp)
  xor    %eax,%eax
  mov    D33(%rip),%rax
  mov    (%rax),%esi
  call   <open@plt>
  mov    %eax,%ebx
  cmp    $0xffffffff,%eax
  je     L13
  mov    %rsp,%rbp
  mov    %rbp,%rsi
  mov    %eax,%edi
  call   <tcgetattr@plt>
  mov    %r12d,%esi
  mov    %rbp,%rdi
  call   <cfsetispeed@plt>
  mov    %r12d,%esi
  mov    %rbp,%rdi
  call   <cfsetospeed@plt>
  mov    D147(%rip),%rax
  mov    (%rax),%eax
  mov    D35(%rip),%rdx
  or     (%rdx),%eax
  mov    D31(%rip),%rdx
  or     (%rdx),%eax
  not    %eax
  and    (%rsp),%eax
  mov    D51(%rip),%rdx
  mov    (%rdx),%edx
  mov    D257(%rip),%rcx
  or     (%rcx),%edx
  mov    D139(%rip),%rcx
  or     (%rcx),%edx
  or     %edx,%eax
  mov    %eax,(%rsp)
  mov    D138(%rip),%rax
  mov    (%rax),%eax
  mov    D248(%rip),%rdx
  or     (%rdx),%eax
  mov    D174(%rip),%rdx
  or     (%rdx),%eax
  mov    D197(%rip),%rdx
  or     (%rdx),%eax
  mov    D226(%rip),%rdx
  or     (%rdx),%eax
  mov    D243(%rip),%rdx
  or     (%rdx),%eax
  mov    D180(%rip),%rdx
  or     (%rdx),%eax
  mov    D145(%rip),%rdx
  or     (%rdx),%eax
  mov    D114(%rip),%rdx
  or     (%rdx),%eax
  mov    D115(%rip),%rdx
  or     (%rdx),%eax
  mov    D155(%rip),%rdx
  or     (%rdx),%eax
  not    %eax
  and    %eax,0x4(%rsp)
  mov    D104(%rip),%rax
  mov    (%rax),%eax
  mov    D178(%rip),%rdx
  or     (%rdx),%eax
  mov    D240(%rip),%rdx
  or     (%rdx),%eax
  not    %eax
  and    %eax,0x8(%rsp)
  mov    D84(%rip),%rax
  mov    (%rax),%eax
  mov    D262(%rip),%rdx
  or     (%rdx),%eax
  mov    D130(%rip),%rdx
  or     (%rdx),%eax
  mov    D46(%rip),%rdx
  or     (%rdx),%eax
  mov    D79(%rip),%rdx
  or     (%rdx),%eax
  not    %eax
  and    %eax,0xc(%rsp)
  mov    %rbp,%rdx
  mov    D132(%rip),%rax
  mov    (%rax),%esi
  mov    %ebx,%edi
  call   <tcsetattr@plt>
L13:
  mov    0x18(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L7
  mov    %ebx,%eax
  add    $0x20,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  ret
L7:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
int serial_open(char *port, int baud) {
  struct termios options;
  int fd;
  fd = open(port, O_RDWR);
  if (fd == -1) {
    return fd;
  }
  tcgetattr(fd, &options);
  cfsetispeed(&options, baud);
  cfsetospeed(&options, baud);
  options.c_cflag &= ~(PARENB | CSIZE | CSTOPB | CSIZE);
  options.c_cflag |= (CLOCAL | CREAD | CS8);
  options.c_iflag &= ~(ICRNL | INLCR | INPCK | IXON | IXOFF | IXANY | IGNBRK | BRKINT | PARMRK | ISTRIP | IGNCR);
  options.c_oflag &= ~(ONLCR | OCRNL | OPOST);
  options.c_lflag &= ~(ECHO | ECHONL | ICANON | ISIG | IEXTEN);
  tcsetattr(fd, TCSANOW, &options);
  return fd;
}
```
user: 提供的汇编代码用C语言表示会是什么样子：

```asm
<serial_open>:
  endbr64
  push   %r13
  push   %r12
  push   %rbp
  mov    %esi,%ebp
  sub    $0x20,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x18(%rsp)
  mov    D177(%rip),%rax
  mov    (%rax),%esi
  call   <open@plt>
  mov    %eax,%r12d
  cmp    $0xffffffff,%eax
  je     L9
  mov    %rsp,%r13
  mov    %eax,%edi
  mov    %r13,%rsi
  call   <tcgetattr@plt>
  mov    %ebp,%esi
  mov    %r13,%rdi
  call   <cfsetispeed@plt>
  mov    %ebp,%esi
  mov    %r13,%rdi
  call   <cfsetospeed@plt>
  mov    D25(%rip),%rdx
  mov    D28(%rip),%rax
  mov    %r12d,%edi
  mov    D139(%rip),%rcx
  mov    (%rax),%eax
  or     (%rdx),%eax
  mov    D202(%rip),%rdx
  or     (%rdx),%eax
  mov    D243(%rip),%rdx
  not    %eax
  and    (%rsp),%eax
  mov    (%rdx),%edx
  or     (%rcx),%edx
  mov    D157(%rip),%rcx
  or     (%rcx),%edx
  or     %edx,%eax
  mov    D20(%rip),%rdx
  mov    %eax,(%rsp)
  mov    D133(%rip),%rax
  mov    (%rax),%eax
  or     (%rdx),%eax
  mov    D164(%rip),%rdx
  or     (%rdx),%eax
  mov    D111(%rip),%rdx
  or     (%rdx),%eax
  mov    D135(%rip),%rdx
  or     (%rdx),%eax
  mov    D216(%rip),%rdx
  or     (%rdx),%eax
  mov    D181(%rip),%rdx
  or     (%rdx),%eax
  mov    D7(%rip),%rdx
  or     (%rdx),%eax
  mov    D52(%rip),%rdx
  or     (%rdx),%eax
  mov    D132(%rip),%rdx
  or     (%rdx),%eax
  mov    D136(%rip),%rdx
  or     (%rdx),%eax
  mov    D43(%rip),%rdx
  not    %eax
  and    %eax,0x4(%rsp)
  mov    D65(%rip),%rax
  mov    (%rax),%eax
  or     (%rdx),%eax
  mov    D122(%rip),%rdx
  or     (%rdx),%eax
  mov    D99(%rip),%rdx
  not    %eax
  and    %eax,0x8(%rsp)
  mov    D219(%rip),%rax
  mov    (%rax),%eax
  or     (%rdx),%eax
  mov    D186(%rip),%rdx
  or     (%rdx),%eax
  mov    D128(%rip),%rdx
  or     (%rdx),%eax
  mov    D190(%rip),%rdx
  or     (%rdx),%eax
  mov    %r13,%rdx
  not    %eax
  and    %eax,0xc(%rsp)
  mov    D191(%rip),%rax
  mov    (%rax),%esi
  call   <tcsetattr@plt>
L9:
  mov    0x18(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L6
  add    $0x20,%rsp
  mov    %r12d,%eax
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
L6:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
int serial_open(char *port, int baud) {
  struct termios options;
  int fd;
  fd = open(port, O_RDWR);
  if (fd == -1) {
    return fd;
  }
  tcgetattr(fd, &options);
  cfsetispeed(&options, baud);
  cfsetospeed(&options, baud);
  options.c_cflag &= ~(PARENB | CSIZE | CSTOPB | CSIZE);
  options.c_cflag |= (CLOCAL | CREAD | CS8);
  options.c_iflag &= ~(ICRNL | INLCR | INPCK | IXON | IXOFF | IXANY | IGNBRK | BRKINT | PARMRK | ISTRIP | IGNCR);
  options.c_oflag &= ~(ONLCR | OCRNL | OPOST);
  options.c_lflag &= ~(ECHO | ECHONL | ICANON | ISIG | IEXTEN);
  tcsetattr(fd, TCSANOW, &options);
  return fd;
}
```