ylfeng/ReF-Decompile-dataset huggingface dataset:
user: 请将这段汇编代码片段转换成等效的C代码:

```asm
<conversor>:
  endbr64
  sub    $0x41,%edi
  cmp    $0x5,%dil
  ja     L1
  movzbl %dil,%edi
  lea    D2(%rip),%rdx
  movslq (%rdx,%rdi,4),%rax
  add    %rdx,%rax
  notrack jmp *%rax
  mov    $0x2,%eax
  ret
  mov    $0x3,%eax
  ret
  mov    $0x4,%eax
  ret
  mov    $0x5,%eax
  ret
  mov    $0x6,%eax
  ret
L1:
  mov    $0x0,%eax
  ret
  mov    $0x1,%eax
  ret
```

assistant: ```c
int conversor(char letra) {
  int l;
  switch (letra) {
  case 'A':
    l = 1;
    break;
  case 'B':
    l = 2;
    break;
  case 'C':
    l = 3;
    break;
  case 'D':
    l = 4;
    break;
  case 'E':
    l = 5;
    break;
  case 'F':
    l = 6;
    break;
  default:
    l = 0;
    break;
  }
  return (l);
}
```
user: 下面的汇编指令对应的C源代码是什么：

```asm
<conversor>:
  endbr64
  lea    -0x41(%rdi),%edx
  movsbl %dil,%eax
  sub    $0x40,%eax
  cmp    $0x6,%dl
  mov    $0x0,%edx
  cmovae %edx,%eax
  ret
```

assistant: ```c
int conversor(char letra) {
  int l;
  switch (letra) {
  case 'A':
    l = 1;
    break;
  case 'B':
    l = 2;
    break;
  case 'C':
    l = 3;
    break;
  case 'D':
    l = 4;
    break;
  case 'E':
    l = 5;
    break;
  case 'F':
    l = 6;
    break;
  default:
    l = 0;
    break;
  }
  return (l);
}
```
user: 请将这段汇编代码片段转换成等效的C代码:

```asm
<conversor>:
  endbr64
  lea    -0x41(%rdi),%edx
  movsbl %dil,%eax
  sub    $0x40,%eax
  cmp    $0x6,%dl
  mov    $0x0,%edx
  cmovae %edx,%eax
  ret
```

assistant: ```c
int conversor(char letra) {
  int l;
  switch (letra) {
  case 'A':
    l = 1;
    break;
  case 'B':
    l = 2;
    break;
  case 'C':
    l = 3;
    break;
  case 'D':
    l = 4;
    break;
  case 'E':
    l = 5;
    break;
  case 'F':
    l = 6;
    break;
  default:
    l = 0;
    break;
  }
  return (l);
}
```
user: 提供的汇编代码用C语言表示会是什么样子：

```asm
<new_string_from>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x20,%rsp
  mov    %rdi,-0x18(%rbp)
  mov    %esi,-0x1c(%rbp)
  mov    %edx,-0x20(%rbp)
  mov    -0x20(%rbp),%eax
  add    $0x1,%eax
  mov    %eax,%edi
  call   <malloc@plt>
  mov    %rax,-0x8(%rbp)
  mov    -0x20(%rbp),%eax
  lea    0x1(%rax),%edx
  mov    -0x8(%rbp),%rax
  mov    $0x0,%esi
  mov    %rax,%rdi
  call   <memset@plt>
  mov    -0x1c(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x18(%rbp),%rax
  lea    (%rdx,%rax,1),%rcx
  mov    -0x20(%rbp),%edx
  mov    -0x8(%rbp),%rax
  mov    %rcx,%rsi
  mov    %rax,%rdi
  call   <strncpy@plt>
  mov    -0x8(%rbp),%rax
  leave
  ret
```

assistant: ```c
char *new_string_from(char *src, int index, int count) {
  char *str;
  str = (char *)malloc(count + 1);
  memset(str, 0, count + 1);
  strncpy(str, src + index, count);
  return str;
}
```
user: Translate the below assembly code into C programming language:

```asm
<new_string_from>:
  endbr64
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  mov    %rdi,%rbp
  mov    %esi,%r12d
  mov    %edx,%r13d
  lea    0x1(%rdx),%r14d
  mov    %r14d,%edi
  call   <malloc@plt>
  mov    %rax,%rbx
  mov    %r14d,%edx
  mov    $0x0,%esi
  mov    %rax,%rdi
  call   <memset@plt>
  movslq %r12d,%r12
  lea    0x0(%rbp,%r12,1),%rsi
  mov    %r13d,%edx
  mov    %rbx,%rdi
  call   <strncpy@plt>
  mov    %rbx,%rax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  ret
```

assistant: ```c
char *new_string_from(char *src, int index, int count) {
  char *str;
  str = (char *)malloc(count + 1);
  memset(str, 0, count + 1);
  strncpy(str, src + index, count);
  return str;
}
```
user: 请从给定的汇编指令推导出C源代码：

```asm
<new_string_from>:
  endbr64
  push   %r14
  lea    0x1(%rdx),%r14d
  push   %r13
  mov    %edx,%r13d
  push   %r12
  push   %rbp
  movslq %esi,%rbp
  push   %rbx
  mov    %rdi,%rbx
  mov    %r14d,%edi
  call   <malloc@plt>
  mov    %r14d,%edx
  xor    %esi,%esi
  mov    %rax,%r12
  mov    %rax,%rdi
  call   <memset@plt>
  lea    (%rbx,%rbp,1),%rsi
  mov    %r13d,%edx
  mov    %r12,%rdi
  call   <strncpy@plt>
  pop    %rbx
  mov    %r12,%rax
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  ret
```

assistant: ```c
char *new_string_from(char *src, int index, int count) {
  char *str;
  str = (char *)malloc(count + 1);
  memset(str, 0, count + 1);
  strncpy(str, src + index, count);
  return str;
}
```
user: Translate the below assembly code into C programming language:

```asm
<new_string_from>:
  endbr64
  push   %r14
  lea    0x1(%rdx),%r14d
  push   %r13
  mov    %edx,%r13d
  push   %r12
  push   %rbp
  movslq %esi,%rbp
  push   %rbx
  mov    %rdi,%rbx
  mov    %r14d,%edi
  call   <malloc@plt>
  mov    %r14d,%edx
  xor    %esi,%esi
  mov    %rax,%r12
  mov    %rax,%rdi
  call   <memset@plt>
  lea    (%rbx,%rbp,1),%rsi
  mov    %r13d,%edx
  mov    %r12,%rdi
  call   <strncpy@plt>
  pop    %rbx
  mov    %r12,%rax
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  ret
```

assistant: ```c
char *new_string_from(char *src, int index, int count) {
  char *str;
  str = (char *)malloc(count + 1);
  memset(str, 0, count + 1);
  strncpy(str, src + index, count);
  return str;
}
```
user: 请将这段汇编代码片段转换成等效的C代码:

```asm
<initDataFolder>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x40,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
  mov    $0x0,%eax
  call   <getpid@plt>
  mov    %eax,%edx
  lea    -0x30(%rbp),%rax
  mov    %edx,%ecx
  lea    D3(%rip),%rdx
  lea    D34(%rip),%rsi
  mov    %rax,%rdi
  call   <sprintf@plt>
  lea    -0x30(%rbp),%rax
  lea    D22(%rip),%rdx
  mov    %rdx,%rsi
  mov    %rax,%rdi
  call   <popen@plt>
  mov    %rax,-0x38(%rbp)
  cmpq   $0x0,-0x38(%rbp)
  jne    L6
  lea    D35(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
  mov    $0x1,%edi
  call   <exit@plt>
L6:
  mov    $0x0,%eax
  mov    -0x8(%rbp),%rdx
  sub    %fs:0x28,%rdx
  je     L3
  call   <__stack_chk_fail@plt>
L3:
  leave
  ret
```

tool_calls: name: retrieve_data
arguments: label: D3
data_type: string
name: retrieve_data
arguments: label: D34
data_type: string
name: retrieve_data
arguments: label: D22
data_type: string
name: retrieve_data
arguments: label: D35
data_type: string

tool: D3: mkdir -p ../commandexe/data/

tool: D34: %s%i

tool: D22: r

tool: D35: [Error] - Error initialing process folder


assistant: ```c
int initDataFolder() {
  char cmd[30];
  FILE *fp;
  sprintf(cmd, "%s%i", "mkdir -p ../commandexe/data/", getpid());
  fp = popen(cmd, "r");
  if (fp == NULL) {
    printf("[Error] - Error initialing process folder\n");
    exit(1);
  }
  return 0;
}
```
user: Demonstrate the C code that generates the assembly output below:

```asm
<initDataFolder>:
  endbr64
  push   %rbx
  sub    $0x30,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x28(%rsp)
  xor    %eax,%eax
  call   <getpid@plt>
  mov    %eax,%ecx
  mov    %rsp,%rbx
  lea    D39(%rip),%rdx
  lea    D11(%rip),%rsi
  mov    %rbx,%rdi
  call   <sprintf@plt>
  lea    D3(%rip),%rsi
  mov    %rbx,%rdi
  call   <popen@plt>
  test   %rax,%rax
  je     L14
L26:
  mov    0x28(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L13
  mov    $0x0,%eax
  add    $0x30,%rsp
  pop    %rbx
  ret
L14:
  lea    D17(%rip),%rdi
  call   <printf@plt>
  mov    $0x1,%edi
  call   <exit@plt>
  jmp    L26
L13:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: unpack_data
arguments: data_tag: D39
datatype: string
name: unpack_data
arguments: data_tag: D11
datatype: string
name: unpack_data
arguments: data_tag: D3
datatype: string
name: unpack_data
arguments: data_tag: D17
datatype: string

tool: D39: mkdir -p ../commandexe/data/

tool: D11: %s%i

tool: D3: r

tool: D17: [Error] - Error initialing process folder


assistant: ```c
int initDataFolder() {
  char cmd[30];
  FILE *fp;
  sprintf(cmd, "%s%i", "mkdir -p ../commandexe/data/", getpid());
  fp = popen(cmd, "r");
  if (fp == NULL) {
    printf("[Error] - Error initialing process folder\n");
    exit(1);
  }
  return 0;
}
```
user: Demonstrate the C code that generates the assembly output below:

```asm
<initDataFolder>:
  endbr64
  push   %rbp
  sub    $0x30,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x28(%rsp)
  xor    %eax,%eax
  mov    %rsp,%rbp
  call   <getpid@plt>
  lea    D14(%rip),%rsi
  mov    %rbp,%rdi
  lea    D16(%rip),%rdx
  mov    %eax,%ecx
  call   <sprintf@plt>
  lea    D15(%rip),%rsi
  mov    %rbp,%rdi
  call   <popen@plt>
  test   %rax,%rax
  je     L21
L8:
  mov    0x28(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L29
  add    $0x30,%rsp
  xor    %eax,%eax
  pop    %rbp
  ret
  nopl   (%rax)
L21:
  lea    D0(%rip),%rdi
  call   <printf@plt>
  mov    $0x1,%edi
  call   <exit@plt>
  jmp    L8
L29:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: retrieve_data
arguments: data_tag: D14
type: string
name: retrieve_data
arguments: data_tag: D16
type: string
name: retrieve_data
arguments: data_tag: D15
type: string
name: retrieve_data
arguments: data_tag: D0
type: string

tool: D14: %s%i

tool: D16: mkdir -p ../commandexe/data/

tool: D15: r

tool: D0: [Error] - Error initialing process folder


assistant: ```c
int initDataFolder() {
  char cmd[30];
  FILE *fp;
  sprintf(cmd, "%s%i", "mkdir -p ../commandexe/data/", getpid());
  fp = popen(cmd, "r");
  if (fp == NULL) {
    printf("[Error] - Error initialing process folder\n");
    exit(1);
  }
  return 0;
}
```
user: 下面的汇编指令对应的C源代码是什么：

```asm
<initDataFolder>:
  endbr64
  push   %rbp
  sub    $0x30,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x28(%rsp)
  xor    %eax,%eax
  mov    %rsp,%rbp
  call   <getpid@plt>
  lea    D13(%rip),%rsi
  mov    %rbp,%rdi
  lea    D24(%rip),%rdx
  mov    %eax,%ecx
  call   <sprintf@plt>
  lea    D38(%rip),%rsi
  mov    %rbp,%rdi
  call   <popen@plt>
  test   %rax,%rax
  je     L11
L5:
  mov    0x28(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L29
  add    $0x30,%rsp
  xor    %eax,%eax
  pop    %rbp
  ret
  nopl   (%rax)
L11:
  lea    D9(%rip),%rdi
  call   <printf@plt>
  mov    $0x1,%edi
  call   <exit@plt>
  jmp    L5
L29:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: unpack_data
arguments: label: D13
type: string
name: unpack_data
arguments: label: D24
type: string
name: unpack_data
arguments: label: D38
type: string
name: unpack_data
arguments: label: D9
type: string

tool: D13: %s%i

tool: D24: mkdir -p ../commandexe/data/

tool: D38: r

tool: D9: [Error] - Error initialing process folder


assistant: ```c
int initDataFolder() {
  char cmd[30];
  FILE *fp;
  sprintf(cmd, "%s%i", "mkdir -p ../commandexe/data/", getpid());
  fp = popen(cmd, "r");
  if (fp == NULL) {
    printf("[Error] - Error initialing process folder\n");
    exit(1);
  }
  return 0;
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<check_board>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x70,%rsp
  mov    %rdi,-0x68(%rbp)
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
  movl   $0x1,-0x50(%rbp)
  movl   $0x2,-0x4c(%rbp)
  movl   $0x3,-0x48(%rbp)
  movl   $0x4,-0x44(%rbp)
  movl   $0x5,-0x40(%rbp)
  movl   $0x6,-0x3c(%rbp)
  movl   $0x7,-0x38(%rbp)
  movl   $0x8,-0x34(%rbp)
  movl   $0x9,-0x30(%rbp)
  movl   $0xa,-0x2c(%rbp)
  movl   $0xb,-0x28(%rbp)
  movl   $0xc,-0x24(%rbp)
  movl   $0xd,-0x20(%rbp)
  movl   $0xe,-0x1c(%rbp)
  movl   $0xf,-0x18(%rbp)
  movl   $0x0,-0x14(%rbp)
  movl   $0x0,-0x58(%rbp)
  jmp    L20
L50:
  movl   $0x0,-0x54(%rbp)
  jmp    L29
L34:
  mov    -0x58(%rbp),%eax
  cltq
  shl    $0x4,%rax
  mov    %rax,%rdx
  mov    -0x68(%rbp),%rax
  add    %rax,%rdx
  mov    -0x54(%rbp),%eax
  cltq
  mov    (%rdx,%rax,4),%edx
  mov    -0x54(%rbp),%eax
  movslq %eax,%rcx
  mov    -0x58(%rbp),%eax
  cltq
  shl    $0x2,%rax
  add    %rcx,%rax
  mov    -0x50(%rbp,%rax,4),%eax
  cmp    %eax,%edx
  je     L30
  mov    $0x0,%eax
  jmp    L12
L30:
  addl   $0x1,-0x54(%rbp)
L29:
  cmpl   $0x3,-0x54(%rbp)
  jle    L34
  addl   $0x1,-0x58(%rbp)
L20:
  cmpl   $0x3,-0x58(%rbp)
  jle    L50
  mov    $0x1,%eax
L12:
  mov    -0x8(%rbp),%rdx
  sub    %fs:0x28,%rdx
  je     L51
  call   <__stack_chk_fail@plt>
L51:
  leave
  ret
```

assistant: ```c
int check_board(int arr[][4]) {
  int won[4][4] = {{1, 2, 3, 4}, {5, 6, 7, 8}, {9, 10, 11, 12}, {13, 14, 15, 0}};
  for (int i = 0; i < 4; i++) {
    for (int j = 0; j < 4; j++) {
      if (arr[i][j] != won[i][j])
        return 0;
    }
  }
  return 1;
}
```
user: 提供的汇编代码用C语言表示会是什么样子：

```asm
<check_board>:
  endbr64
  sub    $0x58,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x48(%rsp)
  xor    %eax,%eax
  movl   $0x1,(%rsp)
  movl   $0x2,0x4(%rsp)
  movl   $0x3,0x8(%rsp)
  movl   $0x4,0xc(%rsp)
  movl   $0x5,0x10(%rsp)
  movl   $0x6,0x14(%rsp)
  movl   $0x7,0x18(%rsp)
  movl   $0x8,0x1c(%rsp)
  movl   $0x9,0x20(%rsp)
  movl   $0xa,0x24(%rsp)
  movl   $0xb,0x28(%rsp)
  movl   $0xc,0x2c(%rsp)
  movl   $0xd,0x30(%rsp)
  movl   $0xe,0x34(%rsp)
  movl   $0xf,0x38(%rsp)
  movl   $0x0,0x3c(%rsp)
  mov    %rsp,%rdx
  lea    0x40(%rsp),%rsi
  jmp    L54
L20:
  add    $0x10,%rdi
  add    $0x10,%rdx
  cmp    %rsi,%rdx
  je     L28
L54:
  mov    %rdi,%rcx
  mov    $0x0,%eax
L57:
  mov    (%rdx,%rax,1),%r8d
  cmp    %r8d,(%rcx,%rax,1)
  jne    L58
  add    $0x4,%rax
  cmp    $0x10,%rax
  jne    L57
  jmp    L20
L58:
  mov    $0x0,%eax
L39:
  mov    0x48(%rsp),%rdx
  sub    %fs:0x28,%rdx
  jne    L0
  add    $0x58,%rsp
  ret
L28:
  mov    $0x1,%eax
  jmp    L39
L0:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
int check_board(int arr[][4]) {
  int won[4][4] = {{1, 2, 3, 4}, {5, 6, 7, 8}, {9, 10, 11, 12}, {13, 14, 15, 0}};
  for (int i = 0; i < 4; i++) {
    for (int j = 0; j < 4; j++) {
      if (arr[i][j] != won[i][j])
        return 0;
    }
  }
  return 1;
}
```
user: What is the c source code of the assembly code below:

```asm
<check_board>:
  endbr64
  sub    $0x58,%rsp
  mov    $0x1,%edx
  mov    %fs:0x28,%rax
  mov    %rax,0x48(%rsp)
  xor    %eax,%eax
  movl   $0x2,0x4(%rsp)
  mov    %rsp,%rcx
  lea    0x40(%rsp),%rsi
  movabs $0x400000003,%rax
  movq   $0xf,0x38(%rsp)
  mov    %rax,0x8(%rsp)
  movabs $0x600000005,%rax
  mov    %rax,0x10(%rsp)
  movabs $0x800000007,%rax
  mov    %rax,0x18(%rsp)
  movabs $0xa00000009,%rax
  mov    %rax,0x20(%rsp)
  movabs $0xc0000000b,%rax
  mov    %rax,0x28(%rsp)
  movabs $0xe0000000d,%rax
  mov    %rax,0x30(%rsp)
L60:
  xor    %eax,%eax
  cmp    %edx,(%rdi,%rax,1)
  jne    L39
L5:
  add    $0x4,%rax
  cmp    $0x10,%rax
  je     L64
  mov    (%rcx,%rax,1),%edx
  cmp    %edx,(%rdi,%rax,1)
  je     L5
L39:
  xor    %eax,%eax
  jmp    L51
  nopl   (%rax)
L64:
  add    $0x10,%rcx
  add    $0x10,%rdi
  cmp    %rsi,%rcx
  je     L9
  mov    (%rcx),%edx
  jmp    L60
  nopl   0x0(%rax)
L9:
  mov    $0x1,%eax
L51:
  mov    0x48(%rsp),%rdx
  sub    %fs:0x28,%rdx
  jne    L6
  add    $0x58,%rsp
  ret
L6:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
int check_board(int arr[][4]) {
  int won[4][4] = {{1, 2, 3, 4}, {5, 6, 7, 8}, {9, 10, 11, 12}, {13, 14, 15, 0}};
  for (int i = 0; i < 4; i++) {
    for (int j = 0; j < 4; j++) {
      if (arr[i][j] != won[i][j])
        return 0;
    }
  }
  return 1;
}
```
user: Please show me the C implementation that matches the assembly code listed below:

```asm
<check_board>:
  endbr64
  cmpl   $0x1,(%rdi)
  jne    L25
  cmpl   $0x2,0x4(%rdi)
  jne    L25
  cmpl   $0x3,0x8(%rdi)
  jne    L25
  cmpl   $0x4,0xc(%rdi)
  jne    L25
  cmpl   $0x5,0x10(%rdi)
  jne    L25
  cmpl   $0x6,0x14(%rdi)
  jne    L25
  cmpl   $0x7,0x18(%rdi)
  jne    L25
  cmpl   $0x8,0x1c(%rdi)
  jne    L25
  cmpl   $0x9,0x20(%rdi)
  jne    L25
  cmpl   $0xa,0x24(%rdi)
  jne    L25
  cmpl   $0xb,0x28(%rdi)
  jne    L25
  cmpl   $0xc,0x2c(%rdi)
  jne    L25
  cmpl   $0xd,0x30(%rdi)
  jne    L25
  cmpl   $0xe,0x34(%rdi)
  jne    L25
  cmpl   $0xf,0x38(%rdi)
  jne    L25
  mov    0x3c(%rdi),%edx
  xor    %eax,%eax
  test   %edx,%edx
  sete   %al
  ret
  nopl   0x0(%rax,%rax,1)
L25:
  xor    %eax,%eax
  ret
```

assistant: ```c
int check_board(int arr[][4]) {
  int won[4][4] = {{1, 2, 3, 4}, {5, 6, 7, 8}, {9, 10, 11, 12}, {13, 14, 15, 0}};
  for (int i = 0; i < 4; i++) {
    for (int j = 0; j < 4; j++) {
      if (arr[i][j] != won[i][j])
        return 0;
    }
  }
  return 1;
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<main>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    $0x9,%edi
  call   <exit@plt>
  mov    $0x0,%eax
  pop    %rbp
  ret
```

assistant: ```c
int main(void) {
  if (1) {
    exit(9);
  } else {
    exit(4);
  }
}
```
user: 请将以下的汇编代码转换成C语言代码：

```asm
<main>:
  endbr64
  sub    $0x8,%rsp
  mov    $0x9,%edi
  call   <exit@plt>
  mov    $0x0,%eax
  add    $0x8,%rsp
  ret
```

assistant: ```c
int main(void) {
  if (1) {
    exit(9);
  } else {
    exit(4);
  }
}
```
user: 请将这段汇编代码片段转换成等效的C代码:

```asm
<main>:
  endbr64
  sub    $0x8,%rsp
  mov    $0x9,%edi
  call   <exit@plt>
  xor    %eax,%eax
  add    $0x8,%rsp
  ret
```

assistant: ```c
int main(void) {
  if (1) {
    exit(9);
  } else {
    exit(4);
  }
}
```
user: 请显示与下面列出的汇编代码相匹配的C语言实现:

```asm
<main>:
  endbr64
  sub    $0x8,%rsp
  mov    $0x9,%edi
  call   <exit@plt>
  xor    %eax,%eax
  add    $0x8,%rsp
  ret
```

assistant: ```c
int main(void) {
  if (1) {
    exit(9);
  } else {
    exit(4);
  }
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<pipe_read>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x30,%rsp
  mov    %rdi,-0x28(%rbp)
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
  lea    -0x10(%rbp),%rax
  mov    %rax,%rdi
  call   <pipe@plt>
  cmp    $0xffffffff,%eax
  jne    L39
  mov    $0x0,%eax
  jmp    L18
L39:
  call   <fork@plt>
  cmp    $0xffffffff,%eax
  je     L67
  test   %eax,%eax
  je     L19
  jmp    L71
L67:
  mov    $0x0,%eax
  jmp    L18
L19:
  mov    -0x10(%rbp),%eax
  mov    %eax,%edi
  call   <close@plt>
  mov    D18(%rip),%rax
  mov    (%rax),%edx
  mov    -0xc(%rbp),%eax
  mov    %edx,%esi
  mov    %eax,%edi
  call   <dup2@plt>
  cmp    $0xffffffff,%eax
  jne    L72
  mov    $0xffffffff,%edi
  call   <exit@plt>
L72:
  mov    D22(%rip),%rax
  mov    (%rax),%edx
  mov    D18(%rip),%rax
  mov    (%rax),%eax
  mov    %edx,%esi
  mov    %eax,%edi
  call   <dup2@plt>
  mov    -0x28(%rbp),%rax
  mov    %rax,%rdi
  call   <system@plt>
  mov    %eax,%edi
  call   <exit@plt>
L71:
  mov    -0xc(%rbp),%eax
  mov    %eax,%edi
  call   <close@plt>
  mov    -0x10(%rbp),%eax
  mov    $0x0,%esi
  mov    %eax,%edi
  call   <list_from_fd@plt>
  mov    %rax,-0x18(%rbp)
  mov    D43(%rip),%rax
  mov    (%rax),%eax
  mov    %eax,-0x1c(%rbp)
  mov    $0x0,%edi
  call   <wait@plt>
  mov    D43(%rip),%rax
  mov    -0x1c(%rbp),%edx
  mov    %edx,(%rax)
  mov    -0x18(%rbp),%rax
L18:
  mov    -0x8(%rbp),%rdx
  sub    %fs:0x28,%rdx
  je     L21
  call   <__stack_chk_fail@plt>
L21:
  leave
  ret
```

assistant: ```c
struct list *pipe_read(const char *cmd) {
  int fds[2];
  if (pipe(fds) == -1)
    return NULL;
  switch (fork()) {
  case -1:
    return NULL;
  case 0:
    close(fds[0]);
    if (dup2(fds[1], STDOUT_FILENO) == -1)
      exit(-1);
    dup2(STDOUT_FILENO, STDERR_FILENO);
    exit(system(cmd));
  default: {
    struct list *l;
    int saveerrno;
    close(fds[1]);
    l = list_from_fd(fds[0], NULL);
    saveerrno = errno;
    wait(NULL);
    errno = saveerrno;
    return l;
  }
  }
}
```
user: 请从给定的汇编指令推导出C源代码：

```asm
<pipe_read>:
  endbr64
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x10,%rsp
  mov    %rdi,%rbp
  mov    %fs:0x28,%rax
  mov    %rax,0x8(%rsp)
  xor    %eax,%eax
  mov    %rsp,%rdi
  call   <pipe@plt>
  cmp    $0xffffffff,%eax
  je     L9
  call   <fork@plt>
  mov    $0x0,%ebx
  cmp    $0xffffffff,%eax
  je     L11
  test   %eax,%eax
  jne    L17
  mov    (%rsp),%edi
  call   <close@plt>
  mov    D34(%rip),%rax
  mov    (%rax),%esi
  mov    0x4(%rsp),%edi
  call   <dup2@plt>
  cmp    $0xffffffff,%eax
  je     L57
L42:
  mov    D36(%rip),%rax
  mov    (%rax),%esi
  mov    D34(%rip),%rax
  mov    (%rax),%edi
  call   <dup2@plt>
  mov    %rbp,%rdi
  call   <system@plt>
  mov    %eax,%edi
  call   <exit@plt>
L17:
  mov    0x4(%rsp),%edi
  call   <close@plt>
  mov    $0x0,%esi
  mov    (%rsp),%edi
  call   <list_from_fd@plt>
  mov    %rax,%rbx
  mov    D26(%rip),%rbp
  mov    0x0(%rbp),%r12d
  mov    $0x0,%edi
  call   <wait@plt>
  mov    %r12d,0x0(%rbp)
L11:
  mov    0x8(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L37
  mov    %rbx,%rax
  add    $0x10,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  ret
L57:
  mov    $0xffffffff,%edi
  call   <exit@plt>
  jmp    L42
L9:
  mov    $0x0,%ebx
  jmp    L11
L37:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
struct list *pipe_read(const char *cmd) {
  int fds[2];
  if (pipe(fds) == -1)
    return NULL;
  switch (fork()) {
  case -1:
    return NULL;
  case 0:
    close(fds[0]);
    if (dup2(fds[1], STDOUT_FILENO) == -1)
      exit(-1);
    dup2(STDOUT_FILENO, STDERR_FILENO);
    exit(system(cmd));
  default: {
    struct list *l;
    int saveerrno;
    close(fds[1]);
    l = list_from_fd(fds[0], NULL);
    saveerrno = errno;
    wait(NULL);
    errno = saveerrno;
    return l;
  }
  }
}
```
user: 请将这段汇编代码片段转换成等效的C代码：

```asm
<pipe_read>:
  endbr64
  push   %r12
  push   %rbp
  mov    %rdi,%rbp
  push   %rbx
  sub    $0x10,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x8(%rsp)
  xor    %eax,%eax
  mov    %rsp,%rdi
  call   <pipe@plt>
  cmp    $0xffffffff,%eax
  je     L49
  call   <fork@plt>
  xor    %r12d,%r12d
  cmp    $0xffffffff,%eax
  je     L14
  test   %eax,%eax
  je     L36
L29:
  mov    0x4(%rsp),%edi
  call   <close@plt>
  mov    (%rsp),%edi
  xor    %esi,%esi
  call   <list_from_fd@plt>
  mov    D0(%rip),%rbp
  xor    %edi,%edi
  mov    %rax,%r12
  mov    0x0(%rbp),%ebx
  call   <wait@plt>
  mov    %ebx,0x0(%rbp)
L14:
  mov    0x8(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L17
  add    $0x10,%rsp
  mov    %r12,%rax
  pop    %rbx
  pop    %rbp
  pop    %r12
  ret
  nopw   0x0(%rax,%rax,1)
L36:
  mov    (%rsp),%edi
  call   <close@plt>
  mov    D6(%rip),%rbx
  mov    0x4(%rsp),%edi
  mov    (%rbx),%esi
  call   <dup2@plt>
  cmp    $0xffffffff,%eax
  je     L26
L27:
  mov    D11(%rip),%rax
  mov    (%rbx),%edi
  mov    (%rax),%esi
  call   <dup2@plt>
  mov    %rbp,%rdi
  call   <system@plt>
  mov    %eax,%edi
  call   <exit@plt>
  jmp    L29
  nopl   0x0(%rax,%rax,1)
L49:
  xor    %r12d,%r12d
  jmp    L14
  nopl   (%rax)
L26:
  mov    $0xffffffff,%edi
  call   <exit@plt>
  jmp    L27
L17:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
struct list *pipe_read(const char *cmd) {
  int fds[2];
  if (pipe(fds) == -1)
    return NULL;
  switch (fork()) {
  case -1:
    return NULL;
  case 0:
    close(fds[0]);
    if (dup2(fds[1], STDOUT_FILENO) == -1)
      exit(-1);
    dup2(STDOUT_FILENO, STDERR_FILENO);
    exit(system(cmd));
  default: {
    struct list *l;
    int saveerrno;
    close(fds[1]);
    l = list_from_fd(fds[0], NULL);
    saveerrno = errno;
    wait(NULL);
    errno = saveerrno;
    return l;
  }
  }
}
```