ylfeng/ReF-Decompile-dataset huggingface dataset:
user: What is the c source code of the assembly code below:

```asm
<main>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x10,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
L76:
  lea    D125(%rip),%rax
  mov    %rax,%rdi
  call   <system@plt>
  lea    D106(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
  lea    D54(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
  lea    D78(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
  lea    D120(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
  lea    D24(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
  lea    -0xc(%rbp),%rax
  mov    %rax,%rsi
  lea    D0(%rip),%rax
  mov    %rax,%rdi
  call   <scanf@plt>
  mov    -0xc(%rbp),%eax
  cmp    $0x3,%eax
  je     L20
  cmp    $0x3,%eax
  jg     L74
  cmp    $0x2,%eax
  je     L57
  cmp    $0x2,%eax
  jg     L74
  test   %eax,%eax
  je     L108
  cmp    $0x1,%eax
  je     L70
  jmp    L74
L108:
  lea    D14(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
  mov    $0x0,%edi
  call   <exit@plt>
  jmp    L74
L70:
  lea    D17(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
  jmp    L74
L57:
  lea    D63(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
  jmp    L74
L20:
  lea    D1(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
  nop
L74:
  lea    D33(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
  lea    D62(%rip),%rax
  mov    %rax,%rdi
  call   <system@plt>
  mov    -0xc(%rbp),%eax
  test   %eax,%eax
  jne    L76
  mov    $0x0,%eax
  mov    -0x8(%rbp),%rdx
  sub    %fs:0x28,%rdx
  je     L19
  call   <__stack_chk_fail@plt>
L19:
  leave
  ret
```

tool_calls: name: disassemble_data
arguments: tag: D125
type: string
name: disassemble_data
arguments: tag: D106
type: string
name: disassemble_data
arguments: tag: D54
type: string
name: disassemble_data
arguments: tag: D78
type: string
name: disassemble_data
arguments: tag: D120
type: string
name: disassemble_data
arguments: tag: D24
type: string
name: disassemble_data
arguments: tag: D0
type: string
name: disassemble_data
arguments: tag: D14
type: string
name: disassemble_data
arguments: tag: D17
type: string
name: disassemble_data
arguments: tag: D63
type: string
name: disassemble_data
arguments: tag: D1
type: string
name: disassemble_data
arguments: tag: D33
type: string
name: disassemble_data
arguments: tag: D62
type: string

tool: D125: cls

tool: D106: 0-exit


tool: D54: 1-area


tool: D78: 2-gold price


tool: D120: 3-help


tool: D24: please choose one 

tool: D0: %d

tool: D14: exiting....

tool: D17: area


tool: D63: gold price


tool: D1: help


tool: D33: 


tool: D62: pause

assistant: ```c
int main() {
  int ans;
  do {
    system("cls");
    printf("0-exit\n");
    printf("1-area\n");
    printf("2-gold price\n");
    printf("3-help\n");
    printf("please choose one ");
    scanf("%d", &ans);
    switch (ans) {
    case 0:
      printf("exiting....");
      exit(0);
      break;
    case 1:
      printf("area\n");
      break;
    case 2:
      printf("gold price\n");
      break;
    case 3:
      printf("help\n");
      break;
    }
    printf("\n");
    system("pause");
  } while (ans != 0);
  return 0;
}
```
user: Translate the below assembly code into C programming language:

```asm
<main>:
  endbr64
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x18,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x8(%rsp)
  xor    %eax,%eax
  lea    D37(%rip),%r13
  lea    D98(%rip),%r12
  lea    D49(%rip),%rbp
  lea    D9(%rip),%rbx
  jmp    L60
L50:
  cmp    $0x3,%eax
  jne    L10
  lea    D128(%rip),%rdi
  call   <printf@plt>
  jmp    L10
L97:
  lea    D35(%rip),%rdi
  call   <printf@plt>
  mov    $0x0,%edi
  call   <exit@plt>
L10:
  lea    D39(%rip),%rdi
  call   <printf@plt>
  lea    D107(%rip),%rdi
  call   <system@plt>
  cmpl   $0x0,0x4(%rsp)
  je     L96
L60:
  mov    %r13,%rdi
  call   <system@plt>
  mov    %r12,%rdi
  call   <printf@plt>
  mov    %rbp,%rdi
  call   <printf@plt>
  mov    %rbx,%rdi
  call   <printf@plt>
  lea    D16(%rip),%rdi
  call   <printf@plt>
  lea    D47(%rip),%rdi
  call   <printf@plt>
  lea    0x4(%rsp),%rsi
  lea    D126(%rip),%rdi
  call   <scanf@plt>
  mov    0x4(%rsp),%eax
  cmp    $0x2,%eax
  je     L106
  jg     L50
  test   %eax,%eax
  je     L97
  cmp    $0x1,%eax
  jne    L10
  lea    D102(%rip),%rdi
  call   <printf@plt>
  jmp    L10
L106:
  lea    D114(%rip),%rdi
  call   <printf@plt>
  jmp    L10
L96:
  mov    0x8(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L34
  mov    $0x0,%eax
  add    $0x18,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
L34:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: read_data
arguments: data_tag: D37
type_infered: string
name: read_data
arguments: data_tag: D98
type_infered: string
name: read_data
arguments: data_tag: D49
type_infered: string
name: read_data
arguments: data_tag: D9
type_infered: string
name: read_data
arguments: data_tag: D128
type_infered: string
name: read_data
arguments: data_tag: D35
type_infered: string
name: read_data
arguments: data_tag: D39
type_infered: string
name: read_data
arguments: data_tag: D107
type_infered: string
name: read_data
arguments: data_tag: D16
type_infered: string
name: read_data
arguments: data_tag: D47
type_infered: string
name: read_data
arguments: data_tag: D126
type_infered: string
name: read_data
arguments: data_tag: D102
type_infered: string
name: read_data
arguments: data_tag: D114
type_infered: string

tool: D37: cls

tool: D98: 0-exit


tool: D49: 1-area


tool: D9: 2-gold price


tool: D128: help


tool: D35: exiting....

tool: D39: 


tool: D107: pause

tool: D16: 3-help


tool: D47: please choose one 

tool: D126: %d

tool: D102: area


tool: D114: gold price


assistant: ```c
int main() {
  int ans;
  do {
    system("cls");
    printf("0-exit\n");
    printf("1-area\n");
    printf("2-gold price\n");
    printf("3-help\n");
    printf("please choose one ");
    scanf("%d", &ans);
    switch (ans) {
    case 0:
      printf("exiting....");
      exit(0);
      break;
    case 1:
      printf("area\n");
      break;
    case 2:
      printf("gold price\n");
      break;
    case 3:
      printf("help\n");
      break;
    }
    printf("\n");
    system("pause");
  } while (ans != 0);
  return 0;
}
```
user: 请从给定的汇编指令推导出C源代码:

```asm
<read_file_header>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x70,%rsp
  mov    %rdi,-0x58(%rbp)
  mov    %rsi,-0x60(%rbp)
  mov    %rdx,-0x68(%rbp)
  mov    %rcx,-0x70(%rbp)
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
  lea    -0x40(%rbp),%rcx
  mov    -0x58(%rbp),%rax
  mov    $0x36,%edx
  mov    %rcx,%rsi
  mov    %rax,%rdi
  call   <OS_file_read@plt>
  mov    %eax,-0x4c(%rbp)
  cmpl   $0x0,-0x4c(%rbp)
  je     L50
  mov    -0x4c(%rbp),%eax
  jmp    L24
L50:
  mov    -0x2e(%rbp),%rdx
  mov    -0x60(%rbp),%rax
  mov    %rdx,(%rax)
  mov    -0x2a(%rbp),%rdx
  mov    -0x68(%rbp),%rax
  mov    %rdx,(%rax)
  mov    -0x36(%rbp),%rdx
  mov    -0x70(%rbp),%rax
  mov    %rdx,(%rax)
  mov    -0x60(%rbp),%rax
  mov    (%rax),%rax
  lea    0x1(%rax),%rdx
  mov    %rdx,%rax
  add    %rax,%rax
  add    %rdx,%rax
  and    $0xfffffffffffffffc,%rax
  mov    %rax,%rdx
  mov    -0x68(%rbp),%rax
  mov    (%rax),%rax
  imul   %rdx,%rax
  mov    %rax,-0x48(%rbp)
  lea    -0x40(%rbp),%rax
  add    $0x22,%rax
  mov    (%rax),%rax
  cmp    %rax,-0x48(%rbp)
  je     L105
  mov    $0x1,%eax
  jmp    L24
L105:
  lea    -0x40(%rbp),%rax
  movzwl (%rax),%eax
  cmp    $0x4d42,%ax
  jne    L99
  lea    -0x40(%rbp),%rax
  add    $0xe,%rax
  mov    (%rax),%rax
  cmp    $0x28,%rax
  je     L83
L99:
  mov    $0x1,%eax
  jmp    L24
L83:
  lea    -0x40(%rbp),%rax
  add    $0x1c,%rax
  movzwl (%rax),%eax
  cmp    $0x18,%ax
  jne    L104
  lea    -0x40(%rbp),%rax
  add    $0x1e,%rax
  mov    (%rax),%rax
  test   %rax,%rax
  je     L82
L104:
  mov    $0x1,%eax
  jmp    L24
L82:
  mov    $0x0,%eax
L24:
  mov    -0x8(%rbp),%rdx
  sub    %fs:0x28,%rdx
  je     L15
  call   <__stack_chk_fail@plt>
L15:
  leave
  ret
```

assistant: ```c
int read_file_header(unsigned long file_handle, unsigned long *p_width, unsigned long *p_height, unsigned long *p_header_size) {
  int err;
  unsigned char buf[(14 + 40)];
  unsigned long size_image;
  err = OS_file_read(file_handle, buf, (14 + 40));
  if (err)
    return err;
  *p_width = *(unsigned long *)(buf + 18);
  *p_height = *(unsigned long *)(buf + 22);
  *p_header_size = *(unsigned long *)(buf + 10);
  size_image = ((((*p_width) * 3) + 3) & ~3) * (*p_height);
  if (size_image != *(unsigned long *)(buf + 34))
    return 1;
  if ((0x4D42 != *(unsigned short *)(buf)) || (40 != *(unsigned long *)(buf + 14)))
    return 1;
  if ((24 != *(unsigned short *)(buf + 28)) || (0 != *(unsigned long *)(buf + 30)))
    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
<read_file_header>:
  endbr64
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x40,%rsp
  mov    %rsi,%rbp
  mov    %rdx,%rbx
  mov    %rcx,%r12
  mov    %fs:0x28,%rax
  mov    %rax,0x38(%rsp)
  xor    %eax,%eax
  mov    %rsp,%rsi
  mov    $0x36,%edx
  call   <OS_file_read@plt>
  test   %eax,%eax
  jne    L8
  mov    0x12(%rsp),%rax
  mov    %rax,0x0(%rbp)
  mov    0x16(%rsp),%rax
  mov    %rax,(%rbx)
  mov    0xa(%rsp),%rax
  mov    %rax,(%r12)
  mov    0x0(%rbp),%rax
  lea    0x3(%rax,%rax,2),%rdx
  and    $0xfffffffffffffffc,%rdx
  imul   (%rbx),%rdx
  mov    $0x1,%eax
  cmp    %rdx,0x22(%rsp)
  jne    L8
  cmpw   $0x4d42,(%rsp)
  jne    L8
  cmpq   $0x28,0xe(%rsp)
  jne    L8
  cmpw   $0x18,0x1c(%rsp)
  jne    L8
  cmpq   $0x0,0x1e(%rsp)
  setne  %al
  movzbl %al,%eax
L8:
  mov    0x38(%rsp),%rdx
  sub    %fs:0x28,%rdx
  jne    L39
  add    $0x40,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  ret
L39:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
int read_file_header(unsigned long file_handle, unsigned long *p_width, unsigned long *p_height, unsigned long *p_header_size) {
  int err;
  unsigned char buf[(14 + 40)];
  unsigned long size_image;
  err = OS_file_read(file_handle, buf, (14 + 40));
  if (err)
    return err;
  *p_width = *(unsigned long *)(buf + 18);
  *p_height = *(unsigned long *)(buf + 22);
  *p_header_size = *(unsigned long *)(buf + 10);
  size_image = ((((*p_width) * 3) + 3) & ~3) * (*p_height);
  if (size_image != *(unsigned long *)(buf + 34))
    return 1;
  if ((0x4D42 != *(unsigned short *)(buf)) || (40 != *(unsigned long *)(buf + 14)))
    return 1;
  if ((24 != *(unsigned short *)(buf + 28)) || (0 != *(unsigned long *)(buf + 30)))
    return 1;
  return 0;
}
```
user: 提供的汇编代码用C语言表示会是什么样子:

```asm
<read_file_header>:
  endbr64
  push   %r12
  mov    %rcx,%r12
  push   %rbp
  mov    %rsi,%rbp
  push   %rbx
  mov    %rdx,%rbx
  mov    $0x36,%edx
  sub    $0x40,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x38(%rsp)
  xor    %eax,%eax
  mov    %rsp,%rsi
  call   <OS_file_read@plt>
  test   %eax,%eax
  jne    L16
  mov    0x12(%rsp),%rax
  mov    %rax,0x0(%rbp)
  mov    0x16(%rsp),%rax
  mov    %rax,(%rbx)
  mov    0xa(%rsp),%rax
  mov    %rax,(%r12)
  mov    0x0(%rbp),%rax
  lea    0x3(%rax,%rax,2),%rdx
  mov    $0x1,%eax
  and    $0xfffffffffffffffc,%rdx
  imul   (%rbx),%rdx
  cmp    %rdx,0x22(%rsp)
  je     L37
L16:
  mov    0x38(%rsp),%rdx
  sub    %fs:0x28,%rdx
  jne    L54
  add    $0x40,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  ret
  cs nopw 0x0(%rax,%rax,1)
L37:
  cmpw   $0x4d42,(%rsp)
  jne    L16
  cmpq   $0x28,0xe(%rsp)
  jne    L16
  cmpw   $0x18,0x1c(%rsp)
  jne    L16
  xor    %eax,%eax
  cmpq   $0x0,0x1e(%rsp)
  setne  %al
  jmp    L16
L54:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
int read_file_header(unsigned long file_handle, unsigned long *p_width, unsigned long *p_height, unsigned long *p_header_size) {
  int err;
  unsigned char buf[(14 + 40)];
  unsigned long size_image;
  err = OS_file_read(file_handle, buf, (14 + 40));
  if (err)
    return err;
  *p_width = *(unsigned long *)(buf + 18);
  *p_height = *(unsigned long *)(buf + 22);
  *p_header_size = *(unsigned long *)(buf + 10);
  size_image = ((((*p_width) * 3) + 3) & ~3) * (*p_height);
  if (size_image != *(unsigned long *)(buf + 34))
    return 1;
  if ((0x4D42 != *(unsigned short *)(buf)) || (40 != *(unsigned long *)(buf + 14)))
    return 1;
  if ((24 != *(unsigned short *)(buf + 28)) || (0 != *(unsigned long *)(buf + 30)))
    return 1;
  return 0;
}
```
user: 提供的汇编代码用C语言表示会是什么样子:

```asm
<read_file_header>:
  endbr64
  push   %r12
  mov    %rcx,%r12
  push   %rbp
  mov    %rsi,%rbp
  push   %rbx
  mov    %rdx,%rbx
  mov    $0x36,%edx
  sub    $0x40,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x38(%rsp)
  xor    %eax,%eax
  mov    %rsp,%rsi
  call   <OS_file_read@plt>
  test   %eax,%eax
  jne    L68
  mov    0x12(%rsp),%rax
  mov    %rax,0x0(%rbp)
  mov    0x16(%rsp),%rax
  mov    %rax,(%rbx)
  mov    0xa(%rsp),%rax
  mov    %rax,(%r12)
  mov    0x0(%rbp),%rax
  lea    0x3(%rax,%rax,2),%rdx
  mov    $0x1,%eax
  and    $0xfffffffffffffffc,%rdx
  imul   (%rbx),%rdx
  cmp    %rdx,0x22(%rsp)
  je     L16
L68:
  mov    0x38(%rsp),%rdx
  sub    %fs:0x28,%rdx
  jne    L8
  add    $0x40,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  ret
  cs nopw 0x0(%rax,%rax,1)
L16:
  cmpw   $0x4d42,(%rsp)
  jne    L68
  cmpq   $0x28,0xe(%rsp)
  jne    L68
  cmpw   $0x18,0x1c(%rsp)
  jne    L68
  xor    %eax,%eax
  cmpq   $0x0,0x1e(%rsp)
  setne  %al
  jmp    L68
L8:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
int read_file_header(unsigned long file_handle, unsigned long *p_width, unsigned long *p_height, unsigned long *p_header_size) {
  int err;
  unsigned char buf[(14 + 40)];
  unsigned long size_image;
  err = OS_file_read(file_handle, buf, (14 + 40));
  if (err)
    return err;
  *p_width = *(unsigned long *)(buf + 18);
  *p_height = *(unsigned long *)(buf + 22);
  *p_header_size = *(unsigned long *)(buf + 10);
  size_image = ((((*p_width) * 3) + 3) & ~3) * (*p_height);
  if (size_image != *(unsigned long *)(buf + 34))
    return 1;
  if ((0x4D42 != *(unsigned short *)(buf)) || (40 != *(unsigned long *)(buf + 14)))
    return 1;
  if ((24 != *(unsigned short *)(buf + 28)) || (0 != *(unsigned long *)(buf + 30)))
    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
<opt_get_double>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x30,%rsp
  mov    %rdi,-0x18(%rbp)
  mov    %rsi,-0x20(%rbp)
  movsd  %xmm0,-0x28(%rbp)
  mov    -0x20(%rbp),%rcx
  mov    -0x18(%rbp),%rax
  mov    $0x0,%edx
  mov    %rcx,%rsi
  mov    %rax,%rdi
  call   <opt_get_string@plt>
  mov    %rax,-0x8(%rbp)
  cmpq   $0x0,-0x8(%rbp)
  je     L7
  mov    -0x8(%rbp),%rax
  mov    %rax,%rdi
  call   <atof@plt>
  movq   %xmm0,%rax
  jmp    L16
L7:
  mov    -0x28(%rbp),%rax
L16:
  movq   %rax,%xmm0
  leave
  ret
```

assistant: ```c
double opt_get_double(const char *section, const char *key, double defvalue) {
  const char *value;
  value = opt_get_string(section, key, NULL);
  if (value != NULL)
    return atof(value);
  else
    return defvalue;
}
```
user: Translate the below assembly code into C programming language:

```asm
<opt_get_double>:
  endbr64
  push   %rbx
  movq   %xmm0,%rbx
  mov    $0x0,%edx
  call   <opt_get_string@plt>
  movq   %rbx,%xmm0
  test   %rax,%rax
  je     L8
  mov    %rax,%rdi
  call   <atof@plt>
L8:
  pop    %rbx
  ret
```

assistant: ```c
double opt_get_double(const char *section, const char *key, double defvalue) {
  const char *value;
  value = opt_get_string(section, key, NULL);
  if (value != NULL)
    return atof(value);
  else
    return defvalue;
}
```
user: 请将以下的汇编代码转换成C语言代码:

```asm
<opt_get_double>:
  endbr64
  sub    $0x18,%rsp
  xor    %edx,%edx
  movsd  %xmm0,0x8(%rsp)
  call   <opt_get_string@plt>
  movsd  0x8(%rsp),%xmm0
  test   %rax,%rax
  je     L7
  mov    %rax,%rdi
  add    $0x18,%rsp
  jmp    1060 <atof@plt>
  nopl   0x0(%rax)
L7:
  add    $0x18,%rsp
  ret
```

assistant: ```c
double opt_get_double(const char *section, const char *key, double defvalue) {
  const char *value;
  value = opt_get_string(section, key, NULL);
  if (value != NULL)
    return atof(value);
  else
    return defvalue;
}
```
user: 这段汇编代码用C语言表示是什么样的？

```asm
<opt_get_double>:
  endbr64
  sub    $0x18,%rsp
  xor    %edx,%edx
  movsd  %xmm0,0x8(%rsp)
  call   <opt_get_string@plt>
  movsd  0x8(%rsp),%xmm0
  test   %rax,%rax
  je     L2
  mov    %rax,%rdi
  add    $0x18,%rsp
  jmp    1060 <atof@plt>
  nopl   0x0(%rax)
L2:
  add    $0x18,%rsp
  ret
```

assistant: ```c
double opt_get_double(const char *section, const char *key, double defvalue) {
  const char *value;
  value = opt_get_string(section, key, NULL);
  if (value != NULL)
    return atof(value);
  else
    return defvalue;
}
```
user: Please show me the C implementation that matches the assembly code listed below:

```asm
<memzero>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    %rdi,-0x18(%rbp)
  mov    %esi,-0x1c(%rbp)
  mov    -0x18(%rbp),%rax
  mov    %rax,-0x8(%rbp)
  mov    -0x1c(%rbp),%eax
  shr    $0x2,%eax
  mov    %eax,-0xc(%rbp)
  jmp    L10
L15:
  mov    -0x8(%rbp),%rax
  lea    0x4(%rax),%rdx
  mov    %rdx,-0x8(%rbp)
  movl   $0x0,(%rax)
L10:
  mov    -0xc(%rbp),%eax
  lea    -0x1(%rax),%edx
  mov    %edx,-0xc(%rbp)
  test   %eax,%eax
  jne    L15
  nop
  nop
  pop    %rbp
  ret
```

assistant: ```c
void memzero(void *data, unsigned nbytes) {
  unsigned *wordp = (unsigned *)data;
  unsigned nwords = nbytes / sizeof(int);
  while (nwords-- > 0)
    *wordp++ = 0;
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<memzero>:
  endbr64
  mov    %esi,%eax
  shr    $0x2,%eax
  sub    $0x1,%eax
  cmp    $0x3,%esi
  jbe    L18
  mov    %eax,%eax
  lea    0x4(%rdi,%rax,4),%rax
L16:
  add    $0x4,%rdi
  movl   $0x0,-0x4(%rdi)
  cmp    %rax,%rdi
  jne    L16
L18:
  ret
```

assistant: ```c
void memzero(void *data, unsigned nbytes) {
  unsigned *wordp = (unsigned *)data;
  unsigned nwords = nbytes / sizeof(int);
  while (nwords-- > 0)
    *wordp++ = 0;
}
```
user: 请显示与下面列出的汇编代码相匹配的C语言实现：

```asm
<memzero>:
  endbr64
  shr    $0x2,%esi
  je     L6
  mov    %esi,%esi
  lea    0x0(,%rsi,4),%rdx
  xor    %esi,%esi
  jmp    1050 <memset@plt>
  nopw   0x0(%rax,%rax,1)
L6:
  ret
```

assistant: ```c
void memzero(void *data, unsigned nbytes) {
  unsigned *wordp = (unsigned *)data;
  unsigned nwords = nbytes / sizeof(int);
  while (nwords-- > 0)
    *wordp++ = 0;
}
```
user: Translate the below assembly code into C programming language:

```asm
<memzero>:
  endbr64
  shr    $0x2,%esi
  je     L9
  mov    %esi,%esi
  lea    0x0(,%rsi,4),%rdx
  xor    %esi,%esi
  jmp    1050 <memset@plt>
  nopw   0x0(%rax,%rax,1)
L9:
  ret
```

assistant: ```c
void memzero(void *data, unsigned nbytes) {
  unsigned *wordp = (unsigned *)data;
  unsigned nwords = nbytes / sizeof(int);
  while (nwords-- > 0)
    *wordp++ = 0;
}
```
user: 请显示与下面列出的汇编代码相匹配的C语言实现：

```asm
<strlen>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    %rdi,-0x18(%rbp)
  movl   $0x0,-0x4(%rbp)
  jmp    L6
L19:
  addl   $0x1,-0x4(%rbp)
  addq   $0x1,-0x18(%rbp)
L6:
  mov    -0x18(%rbp),%rax
  movzbl (%rax),%eax
  test   %al,%al
  jne    L19
  mov    -0x4(%rbp),%eax
  pop    %rbp
  ret
```

assistant: ```c
unsigned short strlen(const char *s) {
  int result = 0;
  while (*s != '\0') {
    result++;
    s++;
  }
  return result;
}
```
user: 请将以下的汇编代码转换成C语言代码：

```asm
<strlen>:
  endbr64
  cmpb   $0x0,(%rdi)
  je     L8
  mov    %rdi,%rdx
  mov    $0x1,%ecx
  sub    %edi,%ecx
L1:
  lea    (%rcx,%rdx,1),%eax
  add    $0x1,%rdx
  cmpb   $0x0,(%rdx)
  jne    L1
  ret
L8:
  mov    $0x0,%eax
  ret
```

assistant: ```c
unsigned short strlen(const char *s) {
  int result = 0;
  while (*s != '\0') {
    result++;
    s++;
  }
  return result;
}
```
user: 请将以下的汇编代码转换成C语言代码:

```asm
<strlen>:
  endbr64
  cmpb   $0x0,(%rdi)
  je     L16
  mov    $0x1,%edx
  sub    %edi,%edx
L2:
  lea    (%rdx,%rdi,1),%eax
  add    $0x1,%rdi
  cmpb   $0x0,(%rdi)
  jne    L2
  ret
  nopl   (%rax)
L16:
  xor    %eax,%eax
  ret
```

assistant: ```c
unsigned short strlen(const char *s) {
  int result = 0;
  while (*s != '\0') {
    result++;
    s++;
  }
  return result;
}
```
user: 下面的汇编指令对应的C源代码是什么:

```asm
<strlen>:
  endbr64
  cmpb   $0x0,(%rdi)
  je     L0
  mov    $0x1,%edx
  sub    %edi,%edx
L3:
  lea    (%rdx,%rdi,1),%eax
  add    $0x1,%rdi
  cmpb   $0x0,(%rdi)
  jne    L3
  ret
  nopl   (%rax)
L0:
  xor    %eax,%eax
  ret
```

assistant: ```c
unsigned short strlen(const char *s) {
  int result = 0;
  while (*s != '\0') {
    result++;
    s++;
  }
  return result;
}
```
user: 下面的汇编指令对应的C源代码是什么：

```asm
<direct_form_iir_down_kernel>:
  endbr64
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  mov    %rdi,%rax
  mov    %rsi,%r12
  mov    %rcx,%rbx
  mov    0x30(%rsp),%rsi
  mov    0x38(%rsp),%rdi
  mov    0x40(%rsp),%r10
  mov    0x48(%rsp),%rcx
  test   %rax,%rax
  jle    L117
  mov    %rdx,%rbp
  lea    -0x1(%r9),%r13
  mov    %r12,%r11
  lea    (%r12,%rax,4),%r14
  mov    $0x0,%r12d
  jmp    L153
L125:
  pxor   %xmm2,%xmm2
  jmp    L142
L29:
  test   %r13,%r13
  jg     L50
  jmp    L27
L119:
  addq   $0x1,(%rbx)
  add    $0x4,%r11
  cmp    %r14,%r11
  je     L17
L153:
  movss  (%r11),%xmm1
  movss  %xmm1,(%rcx)
  test   %r9,%r9
  jle    L125
  pxor   %xmm2,%xmm2
  mov    $0x0,%eax
L71:
  movss  (%rdi,%rax,4),%xmm1
  mulss  (%rcx,%rax,8),%xmm1
  cvtss2sd %xmm1,%xmm1
  addsd  %xmm1,%xmm2
  add    $0x1,%rax
  cmp    %rax,%r9
  jne    L71
L142:
  cmp    $0x1,%rsi
  jle    L29
  mov    $0x1,%edx
L120:
  movss  (%r10,%rdx,4),%xmm1
  mulss  -0x4(%rcx,%rdx,8),%xmm1
  cvtss2sd %xmm1,%xmm1
  subsd  %xmm1,%xmm2
  mov    %rdx,%rax
  add    $0x1,%rdx
  cmp    %rdx,%rsi
  jne    L120
  test   %r13,%r13
  jle    L15
L50:
  mov    %r13,%rax
L13:
  movss  -0x8(%rcx,%rax,8),%xmm1
  movss  %xmm1,(%rcx,%rax,8)
  sub    $0x1,%rax
  test   %rax,%rax
  jg     L13
  lea    -0x1(%rsi),%rax
  test   %rax,%rax
  jle    L27
L15:
  movss  -0x4(%rcx,%rax,8),%xmm1
  movss  %xmm1,0x4(%rcx,%rax,8)
  sub    $0x1,%rax
  test   %rax,%rax
  jg     L15
L27:
  pxor   %xmm1,%xmm1
  cvtsd2ss %xmm2,%xmm1
  movss  %xmm1,0x4(%rcx)
  mov    (%rbx),%rax
  cqto
  idiv   %r8
  test   %rdx,%rdx
  jne    L119
  mulsd  %xmm0,%xmm2
  cvtsd2ss %xmm2,%xmm2
  movss  %xmm2,0x0(%rbp,%r12,4)
  add    $0x1,%r12
  jmp    L119
L117:
  mov    $0x0,%r12d
L17:
  mov    (%rbx),%rax
  cqto
  idiv   %r8
  mov    %rdx,(%rbx)
  mov    %r12,%rax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  ret
```

assistant: ```c
long direct_form_iir_down_kernel(lenx, x, y, k0, idown, zerono, poleno, gain, a, b, T)
long lenx;
float *x, *y;
long *k0, idown, zerono, poleno;
double gain;
float *a, *b, (*T)[2];
{
  long kx, ky, n;
  double yj;
  ky = 0;
  for (kx = 0; kx < lenx; kx++) {
    T[0][0] = x[kx];
    for (yj = 0, n = 0; n < zerono; n++)
      yj += a[n] * T[n][0];
    for (n = 1; n < poleno; n++)
      yj -= b[n] * T[n - 1][1];
    for (n = zerono - 1; n > 0; n--)
      T[n][0] = T[n - 1][0];
    for (n = poleno - 1; n > 0; n--)
      T[n][1] = T[n - 1][1];
    T[0][1] = yj;
    if (*k0 % idown == 0) {
      y[ky] = yj * gain;
      ky++;
    }
    (*k0)++;
  }
  *k0 %= idown;
  return ky;
}
```