ylfeng/ReF-Decompile-dataset huggingface dataset:
user: 下面的汇编指令对应的C源代码是什么:

```asm
<findLast>:
  endbr64
  movzbl (%rdi),%ecx
  test   %cl,%cl
  je     L4
  xor    %edx,%edx
  mov    $0xffffffff,%r8d
  nopl   0x0(%rax,%rax,1)
L12:
  cmp    %cl,%sil
  cmove  %edx,%r8d
  add    $0x1,%rdx
  movzbl (%rdi,%rdx,1),%ecx
  test   %cl,%cl
  jne    L12
  movslq %r8d,%r8
  lea    (%rdi,%r8,1),%rax
  ret
  nopl   0x0(%rax,%rax,1)
L4:
  mov    $0xffffffffffffffff,%r8
  lea    (%rdi,%r8,1),%rax
  ret
```

assistant: ```c
const char *findLast(const char *s, char v) {
  int i, j = -1;
  for (i = 0; s[i] != '\0'; i++) {
    if (s[i] == v || (j < 0 && s[i] == '\0')) {
      j = i;
    }
  }
  return s + j;
}
```
user: What is the c source code of the assembly code below:

```asm
<findLast>:
  endbr64
  movzbl (%rdi),%ecx
  test   %cl,%cl
  je     L9
  xor    %edx,%edx
  mov    $0xffffffff,%r8d
  nopl   0x0(%rax,%rax,1)
L7:
  cmp    %cl,%sil
  cmove  %edx,%r8d
  add    $0x1,%rdx
  movzbl (%rdi,%rdx,1),%ecx
  test   %cl,%cl
  jne    L7
  movslq %r8d,%r8
  lea    (%rdi,%r8,1),%rax
  ret
  nopl   0x0(%rax,%rax,1)
L9:
  mov    $0xffffffffffffffff,%r8
  lea    (%rdi,%r8,1),%rax
  ret
```

assistant: ```c
const char *findLast(const char *s, char v) {
  int i, j = -1;
  for (i = 0; s[i] != '\0'; i++) {
    if (s[i] == v || (j < 0 && s[i] == '\0')) {
      j = i;
    }
  }
  return s + j;
}
```
user: 请将这段汇编代码片段转换成等效的C代码：

```asm
<strip_whitespace>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x10,%rsp
  mov    %rdi,-0x8(%rbp)
  mov    %rsi,-0x10(%rbp)
  jmp    L51
L38:
  mov    -0x8(%rbp),%rax
  mov    (%rax),%rax
  lea    0x1(%rax),%rdx
  mov    -0x8(%rbp),%rax
  mov    %rdx,(%rax)
L51:
  mov    -0x8(%rbp),%rax
  mov    (%rax),%rdx
  mov    -0x10(%rbp),%rax
  mov    (%rax),%rax
  cmp    %rax,%rdx
  ja     L18
  mov    -0x8(%rbp),%rax
  mov    (%rax),%rax
  movzbl (%rax),%eax
  movzbl %al,%eax
  mov    %eax,%edi
  call   <isspace@plt>
  test   %rax,%rax
  jne    L38
  jmp    L18
L27:
  mov    -0x10(%rbp),%rax
  mov    (%rax),%rax
  lea    -0x1(%rax),%rdx
  mov    -0x10(%rbp),%rax
  mov    %rdx,(%rax)
L18:
  mov    -0x10(%rbp),%rax
  mov    (%rax),%rdx
  mov    -0x8(%rbp),%rax
  mov    (%rax),%rax
  cmp    %rax,%rdx
  jb     L55
  mov    -0x10(%rbp),%rax
  mov    (%rax),%rax
  movzbl (%rax),%eax
  movzbl %al,%eax
  mov    %eax,%edi
  call   <isspace@plt>
  test   %rax,%rax
  jne    L27
L55:
  mov    -0x8(%rbp),%rax
  mov    (%rax),%rax
  leave
  ret
```

assistant: ```c
char *strip_whitespace(const char **begpp, const char **endpp) {
  while (*begpp <= *endpp && isspace((unsigned char)**begpp))
    (*begpp)++;
  while (*endpp >= *begpp && isspace((unsigned char)**endpp))
    (*endpp)--;
  return (char *)*begpp;
}
```
user: Please show me the C implementation that matches the assembly code listed below:

```asm
<strip_whitespace>:
  endbr64
  push   %rbp
  push   %rbx
  sub    $0x8,%rsp
  mov    %rdi,%rbx
  mov    %rsi,%rbp
  mov    (%rdi),%rax
  cmp    (%rsi),%rax
  ja     L38
L30:
  movzbl (%rax),%edi
  call   <isspace@plt>
  test   %rax,%rax
  je     L6
  mov    (%rbx),%rax
  add    $0x1,%rax
  mov    %rax,(%rbx)
  cmp    0x0(%rbp),%rax
  jbe    L30
  jmp    L38
L6:
  mov    0x0(%rbp),%rax
  cmp    (%rbx),%rax
  jb     L38
L22:
  movzbl (%rax),%edi
  call   <isspace@plt>
  test   %rax,%rax
  je     L38
  mov    0x0(%rbp),%rax
  sub    $0x1,%rax
  mov    %rax,0x0(%rbp)
  cmp    (%rbx),%rax
  jae    L22
L38:
  mov    (%rbx),%rax
  add    $0x8,%rsp
  pop    %rbx
  pop    %rbp
  ret
```

assistant: ```c
char *strip_whitespace(const char **begpp, const char **endpp) {
  while (*begpp <= *endpp && isspace((unsigned char)**begpp))
    (*begpp)++;
  while (*endpp >= *begpp && isspace((unsigned char)**endpp))
    (*endpp)--;
  return (char *)*begpp;
}
```
user: Demonstrate the C code that generates the assembly output below:

```asm
<strip_whitespace>:
  endbr64
  mov    (%rdi),%rax
  cmp    (%rsi),%rax
  ja     L33
  push   %rbp
  mov    %rsi,%rbp
  push   %rbx
  mov    %rdi,%rbx
  sub    $0x8,%rsp
  jmp    L49
  nopw   0x0(%rax,%rax,1)
L31:
  mov    (%rbx),%rax
  add    $0x1,%rax
  mov    %rax,(%rbx)
  cmp    0x0(%rbp),%rax
  ja     L32
L49:
  movzbl (%rax),%edi
  call   <isspace@plt>
  test   %rax,%rax
  jne    L31
  mov    0x0(%rbp),%rdx
  mov    (%rbx),%rax
  cmp    %rdx,%rax
  jbe    L36
  jmp    L32
  nopl   0x0(%rax,%rax,1)
L71:
  mov    0x0(%rbp),%rax
  lea    -0x1(%rax),%rdx
  mov    %rdx,0x0(%rbp)
  mov    (%rbx),%rax
  cmp    %rax,%rdx
  jb     L32
L36:
  movzbl (%rdx),%edi
  call   <isspace@plt>
  test   %rax,%rax
  jne    L71
  mov    (%rbx),%rax
L32:
  add    $0x8,%rsp
  pop    %rbx
  pop    %rbp
  ret
L33:
  ret
```

assistant: ```c
char *strip_whitespace(const char **begpp, const char **endpp) {
  while (*begpp <= *endpp && isspace((unsigned char)**begpp))
    (*begpp)++;
  while (*endpp >= *begpp && isspace((unsigned char)**endpp))
    (*endpp)--;
  return (char *)*begpp;
}
```
user: 请显示与下面列出的汇编代码相匹配的C语言实现：

```asm
<strip_whitespace>:
  endbr64
  mov    (%rdi),%rax
  cmp    (%rsi),%rax
  ja     L75
  push   %rbp
  mov    %rsi,%rbp
  push   %rbx
  mov    %rdi,%rbx
  sub    $0x8,%rsp
  jmp    L65
  nopw   0x0(%rax,%rax,1)
L50:
  mov    (%rbx),%rax
  add    $0x1,%rax
  mov    %rax,(%rbx)
  cmp    0x0(%rbp),%rax
  ja     L2
L65:
  movzbl (%rax),%edi
  call   <isspace@plt>
  test   %rax,%rax
  jne    L50
  mov    0x0(%rbp),%rdx
  mov    (%rbx),%rax
  cmp    %rdx,%rax
  jbe    L29
  jmp    L2
  nopl   0x0(%rax,%rax,1)
L43:
  mov    0x0(%rbp),%rax
  lea    -0x1(%rax),%rdx
  mov    %rdx,0x0(%rbp)
  mov    (%rbx),%rax
  cmp    %rax,%rdx
  jb     L2
L29:
  movzbl (%rdx),%edi
  call   <isspace@plt>
  test   %rax,%rax
  jne    L43
  mov    (%rbx),%rax
L2:
  add    $0x8,%rsp
  pop    %rbx
  pop    %rbp
  ret
L75:
  ret
```

assistant: ```c
char *strip_whitespace(const char **begpp, const char **endpp) {
  while (*begpp <= *endpp && isspace((unsigned char)**begpp))
    (*begpp)++;
  while (*endpp >= *begpp && isspace((unsigned char)**endpp))
    (*endpp)--;
  return (char *)*begpp;
}
```
user: 请从给定的汇编指令推导出C源代码:

```asm
<__start>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    $0x0,%eax
  call   <init_data@plt>
  mov    $0x0,%eax
  call   <init_bss@plt>
  mov    $0x0,%eax
  call   <mcu_init@plt>
  mov    $0x0,%eax
  call   <main@plt>
L5:
  jmp    L5
```

assistant: ```c
void __start(void) {
  init_data();
  init_bss();
  mcu_init();
  (void)main();
  for (;;)
    ;
}
```
user: 请从给定的汇编指令推导出C源代码：

```asm
<__start>:
  endbr64
  sub    $0x8,%rsp
  mov    $0x0,%eax
  call   <init_data@plt>
  mov    $0x0,%eax
  call   <init_bss@plt>
  mov    $0x0,%eax
  call   <mcu_init@plt>
  mov    $0x0,%eax
  call   <main@plt>
L4:
  jmp    L4
```

assistant: ```c
void __start(void) {
  init_data();
  init_bss();
  mcu_init();
  (void)main();
  for (;;)
    ;
}
```
user: 提供的汇编代码用C语言表示会是什么样子:

```asm
<__start>:
  endbr64
  sub    $0x8,%rsp
  xor    %eax,%eax
  call   <init_data@plt>
  xor    %eax,%eax
  call   <init_bss@plt>
  xor    %eax,%eax
  call   <mcu_init@plt>
  xor    %eax,%eax
  call   <main@plt>
L8:
  jmp    L8
```

assistant: ```c
void __start(void) {
  init_data();
  init_bss();
  mcu_init();
  (void)main();
  for (;;)
    ;
}
```
user: 请显示与下面列出的汇编代码相匹配的C语言实现:

```asm
<__start>:
  endbr64
  sub    $0x8,%rsp
  xor    %eax,%eax
  call   <init_data@plt>
  xor    %eax,%eax
  call   <init_bss@plt>
  xor    %eax,%eax
  call   <mcu_init@plt>
  xor    %eax,%eax
  call   <main@plt>
L0:
  jmp    L0
```

assistant: ```c
void __start(void) {
  init_data();
  init_bss();
  mcu_init();
  (void)main();
  for (;;)
    ;
}
```
user: Please show me the C implementation that matches the assembly code listed below:

```asm
<BinarySearch>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    %rdi,-0x18(%rbp)
  mov    %esi,-0x1c(%rbp)
  mov    %edx,-0x20(%rbp)
  mov    %ecx,-0x24(%rbp)
  movl   $0xffffffff,-0x8(%rbp)
  mov    -0x1c(%rbp),%edx
  mov    -0x20(%rbp),%eax
  add    %edx,%eax
  mov    %eax,%edx
  shr    $0x1f,%edx
  add    %edx,%eax
  sar    %eax
  mov    %eax,-0x4(%rbp)
  jmp    L58
L40:
  mov    -0x4(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%eax
  cmp    %eax,-0x24(%rbp)
  jne    L62
  mov    -0x4(%rbp),%eax
  mov    %eax,-0x8(%rbp)
  mov    -0x8(%rbp),%eax
  jmp    L3
L62:
  mov    -0x4(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%eax
  cmp    %eax,-0x24(%rbp)
  jge    L46
  mov    -0x4(%rbp),%eax
  sub    $0x1,%eax
  mov    %eax,-0x8(%rbp)
  mov    -0x8(%rbp),%eax
  jmp    L3
L46:
  mov    -0x4(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%eax
  cmp    %eax,-0x24(%rbp)
  jle    L58
  mov    -0x4(%rbp),%eax
  add    $0x1,%eax
  mov    %eax,-0x8(%rbp)
  mov    -0x8(%rbp),%eax
  jmp    L3
L58:
  mov    -0x1c(%rbp),%eax
  cmp    -0x20(%rbp),%eax
  jle    L40
  mov    -0x8(%rbp),%eax
L3:
  pop    %rbp
  ret
```

assistant: ```c
int BinarySearch(int array[], int min_index, int max_index, int key) {
  int position = -1;
  int mid;
  mid = (min_index + max_index) / 2;
  while (min_index <= max_index) {
    if (key == array[mid]) {
      position = mid;
      return position;
    } else if (key < array[mid]) {
      position = mid - 1;
      return position;
    } else if (key > array[mid]) {
      position = mid + 1;
      return position;
    } else {
      min_index;
    }
  }
  return position;
}
```
user: 提供的汇编代码用C语言表示会是什么样子:

```asm
<BinarySearch>:
  endbr64
  lea    (%rsi,%rdx,1),%eax
  mov    %eax,%r8d
  shr    $0x1f,%r8d
  add    %eax,%r8d
  sar    %r8d
  mov    %r8d,%r9d
  movslq %r8d,%rax
  lea    (%rdi,%rax,4),%rdi
L30:
  cmp    %edx,%esi
  jg     L47
  mov    (%rdi),%eax
  cmp    %ecx,%eax
  je     L22
  jg     L55
  jge    L30
  lea    0x1(%r8),%r9d
  jmp    L22
L55:
  lea    -0x1(%r8),%r9d
  jmp    L22
L47:
  mov    $0xffffffff,%r9d
L22:
  mov    %r9d,%eax
  ret
```

assistant: ```c
int BinarySearch(int array[], int min_index, int max_index, int key) {
  int position = -1;
  int mid;
  mid = (min_index + max_index) / 2;
  while (min_index <= max_index) {
    if (key == array[mid]) {
      position = mid;
      return position;
    } else if (key < array[mid]) {
      position = mid - 1;
      return position;
    } else if (key > array[mid]) {
      position = mid + 1;
      return position;
    } else {
      min_index;
    }
  }
  return position;
}
```
user: 这段汇编代码用C语言表示是什么样的？

```asm
<BinarySearch>:
  endbr64
  lea    (%rsi,%rdx,1),%eax
  mov    %rdi,%r9
  mov    %eax,%edi
  shr    $0x1f,%edi
  add    %eax,%edi
  sar    %edi
  movslq %edi,%rax
  mov    %edi,%r8d
  lea    (%r9,%rax,4),%rax
  jmp    L14
  nop
L26:
  cmp    %ecx,(%rax)
  je     L33
  jg     L9
  jl     L30
L14:
  cmp    %edx,%esi
  jle    L26
  mov    $0xffffffff,%r8d
L33:
  mov    %r8d,%eax
  ret
  cs nopw 0x0(%rax,%rax,1)
L9:
  lea    -0x1(%rdi),%r8d
  mov    %r8d,%eax
  ret
  nopl   0x0(%rax,%rax,1)
L30:
  lea    0x1(%rdi),%r8d
  mov    %r8d,%eax
  ret
```

assistant: ```c
int BinarySearch(int array[], int min_index, int max_index, int key) {
  int position = -1;
  int mid;
  mid = (min_index + max_index) / 2;
  while (min_index <= max_index) {
    if (key == array[mid]) {
      position = mid;
      return position;
    } else if (key < array[mid]) {
      position = mid - 1;
      return position;
    } else if (key > array[mid]) {
      position = mid + 1;
      return position;
    } else {
      min_index;
    }
  }
  return position;
}
```
user: 请将这段汇编代码片段转换成等效的C代码:

```asm
<BinarySearch>:
  endbr64
  lea    (%rsi,%rdx,1),%eax
  mov    %rdi,%r9
  mov    %eax,%edi
  shr    $0x1f,%edi
  add    %eax,%edi
  sar    %edi
  movslq %edi,%rax
  mov    %edi,%r8d
  lea    (%r9,%rax,4),%rax
  cmp    %edx,%esi
  jg     L22
  mov    (%rax),%eax
  jmp    L38
  nopl   (%rax)
L10:
  jl     L42
  jg     L33
L38:
  cmp    %eax,%ecx
  jne    L10
L31:
  mov    %r8d,%eax
  ret
  nopl   0x0(%rax)
L42:
  lea    -0x1(%rdi),%r8d
  mov    %r8d,%eax
  ret
L33:
  lea    0x1(%rdi),%r8d
  mov    %r8d,%eax
  ret
L22:
  mov    $0xffffffff,%r8d
  jmp    L31
```

assistant: ```c
int BinarySearch(int array[], int min_index, int max_index, int key) {
  int position = -1;
  int mid;
  mid = (min_index + max_index) / 2;
  while (min_index <= max_index) {
    if (key == array[mid]) {
      position = mid;
      return position;
    } else if (key < array[mid]) {
      position = mid - 1;
      return position;
    } else if (key > array[mid]) {
      position = mid + 1;
      return position;
    } else {
      min_index;
    }
  }
  return position;
}
```
user: 这段汇编代码用C语言表示是什么样的：

```asm
<asm_include>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x20,%rsp
  mov    %rdi,-0x18(%rbp)
  mov    -0x18(%rbp),%rax
  mov    %rax,%rdi
  call   <get_named_buffer@plt>
  mov    %rax,-0x8(%rbp)
  mov    -0x8(%rbp),%rax
  mov    %rax,%rdi
  call   <asm_src_buffer_push@plt>
  nop
  leave
  ret
```

assistant: ```c
void asm_include(const char *msg) {
  struct membuf *src;
  src = get_named_buffer(msg);
  asm_src_buffer_push(src);
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<asm_include>:
  endbr64
  sub    $0x8,%rsp
  call   <get_named_buffer@plt>
  mov    %rax,%rdi
  call   <asm_src_buffer_push@plt>
  add    $0x8,%rsp
  ret
```

assistant: ```c
void asm_include(const char *msg) {
  struct membuf *src;
  src = get_named_buffer(msg);
  asm_src_buffer_push(src);
}
```
user: Please show me the C implementation that matches the assembly code listed below:

```asm
<asm_include>:
  endbr64
  sub    $0x8,%rsp
  call   <get_named_buffer@plt>
  add    $0x8,%rsp
  mov    %rax,%rdi
  jmp    1070 <asm_src_buffer_push@plt>
```

assistant: ```c
void asm_include(const char *msg) {
  struct membuf *src;
  src = get_named_buffer(msg);
  asm_src_buffer_push(src);
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<asm_include>:
  endbr64
  sub    $0x8,%rsp
  call   <get_named_buffer@plt>
  add    $0x8,%rsp
  mov    %rax,%rdi
  jmp    1070 <asm_src_buffer_push@plt>
```

assistant: ```c
void asm_include(const char *msg) {
  struct membuf *src;
  src = get_named_buffer(msg);
  asm_src_buffer_push(src);
}
```
user: Please show me the C implementation that matches the assembly code listed below:

```asm
<update_from_input>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x10,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
  movl   $0x0,-0x10(%rbp)
  jmp    L16
L18:
  movzbl -0x9(%rbp),%eax
  movsbl %al,%eax
  mov    %eax,-0x10(%rbp)
L16:
  mov    D5(%rip),%rax
  mov    (%rax),%edx
  lea    -0x9(%rbp),%rax
  mov    %edx,%ecx
  mov    $0x1,%edx
  mov    $0x1,%esi
  mov    %rax,%rdi
  call   <fread@plt>
  cmp    $0x1,%eax
  je     L18
  mov    -0x10(%rbp),%eax
  mov    -0x8(%rbp),%rdx
  sub    %fs:0x28,%rdx
  je     L11
  call   <__stack_chk_fail@plt>
L11:
  leave
  ret
```

assistant: ```c
int update_from_input() {
  int c = 0;
  char buf[1];
  while (fread(buf, 1, 1, stdin) == 1) {
    c = buf[0];
  }
  return c;
}
```
user: Demonstrate the C code that generates the assembly output below:

```asm
<update_from_input>:
  endbr64
  push   %rbp
  push   %rbx
  sub    $0x18,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x8(%rsp)
  xor    %eax,%eax
  mov    $0x0,%ebx
  mov    D7(%rip),%rbp
  jmp    L12
L11:
  movsbl 0x7(%rsp),%ebx
L12:
  lea    0x7(%rsp),%rdi
  mov    0x0(%rbp),%ecx
  mov    $0x1,%edx
  mov    $0x1,%esi
  call   <fread@plt>
  cmp    $0x1,%eax
  je     L11
  mov    0x8(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L2
  mov    %ebx,%eax
  add    $0x18,%rsp
  pop    %rbx
  pop    %rbp
  ret
L2:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
int update_from_input() {
  int c = 0;
  char buf[1];
  while (fread(buf, 1, 1, stdin) == 1) {
    c = buf[0];
  }
  return c;
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<update_from_input>:
  endbr64
  push   %r12
  xor    %r12d,%r12d
  push   %rbp
  push   %rbx
  sub    $0x10,%rsp
  mov    D0(%rip),%rbp
  mov    %fs:0x28,%rax
  mov    %rax,0x8(%rsp)
  xor    %eax,%eax
  lea    0x7(%rsp),%rbx
  jmp    L8
  nopl   (%rax)
L15:
  movsbl 0x7(%rsp),%r12d
L8:
  mov    0x0(%rbp),%ecx
  mov    $0x1,%edx
  mov    $0x1,%esi
  mov    %rbx,%rdi
  call   <fread@plt>
  cmp    $0x1,%eax
  je     L15
  mov    0x8(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L26
  add    $0x10,%rsp
  mov    %r12d,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  ret
L26:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
int update_from_input() {
  int c = 0;
  char buf[1];
  while (fread(buf, 1, 1, stdin) == 1) {
    c = buf[0];
  }
  return c;
}
```
user: 请将这段汇编代码片段转换成等效的C代码：

```asm
<update_from_input>:
  endbr64
  push   %r12
  xor    %r12d,%r12d
  push   %rbp
  push   %rbx
  sub    $0x10,%rsp
  mov    D1(%rip),%rbp
  mov    %fs:0x28,%rax
  mov    %rax,0x8(%rsp)
  xor    %eax,%eax
  lea    0x7(%rsp),%rbx
  jmp    L14
  nopl   (%rax)
L0:
  movsbl 0x7(%rsp),%r12d
L14:
  mov    0x0(%rbp),%ecx
  mov    $0x1,%edx
  mov    $0x1,%esi
  mov    %rbx,%rdi
  call   <fread@plt>
  cmp    $0x1,%eax
  je     L0
  mov    0x8(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L6
  add    $0x10,%rsp
  mov    %r12d,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  ret
L6:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
int update_from_input() {
  int c = 0;
  char buf[1];
  while (fread(buf, 1, 1, stdin) == 1) {
    c = buf[0];
  }
  return c;
}
```
user: Please show me the C implementation that matches the assembly code listed below:

```asm
<clear_disp>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  push   %rbx
  mov    %rdi,-0x10(%rbp)
  mov    $0x0,%ebx
  jmp    L14
L15:
  movslq %ebx,%rax
  lea    0x0(,%rax,4),%rdx
  mov    -0x10(%rbp),%rax
  add    %rdx,%rax
  movl   $0x0,(%rax)
  add    $0x1,%ebx
L14:
  cmp    $0x3,%ebx
  jle    L15
  nop
  nop
  mov    -0x8(%rbp),%rbx
  leave
  ret
```

assistant: ```c
void clear_disp(int *disp) {
  register int i;
  for (i = 0; i <= 3; i++)
    disp[i] = 0;
}
```
user: 请将这段汇编代码片段转换成等效的C代码：

```asm
<clear_disp>:
  endbr64
  movl   $0x0,(%rdi)
  movl   $0x0,0x4(%rdi)
  movl   $0x0,0x8(%rdi)
  movl   $0x0,0xc(%rdi)
  ret
```

assistant: ```c
void clear_disp(int *disp) {
  register int i;
  for (i = 0; i <= 3; i++)
    disp[i] = 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
<clear_disp>:
  endbr64
  movq   $0x0,(%rdi)
  movq   $0x0,0x8(%rdi)
  ret
```

assistant: ```c
void clear_disp(int *disp) {
  register int i;
  for (i = 0; i <= 3; i++)
    disp[i] = 0;
}
```
user: 请将这段汇编代码片段转换成等效的C代码：

```asm
<clear_disp>:
  endbr64
  pxor   %xmm0,%xmm0
  movups %xmm0,(%rdi)
  ret
```

assistant: ```c
void clear_disp(int *disp) {
  register int i;
  for (i = 0; i <= 3; i++)
    disp[i] = 0;
}
```
user: 下面的汇编指令对应的C源代码是什么:

```asm
<print_int32>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x20,%rsp
  mov    %rdi,-0x18(%rbp)
  mov    %rsi,-0x20(%rbp)
  mov    -0x18(%rbp),%rax
  shr    $0x3f,%rax
  movzbl %al,%eax
  mov    %eax,-0x4(%rbp)
  cmpl   $0x0,-0x4(%rbp)
  je     L5
  mov    -0x20(%rbp),%rax
  lea    0x1(%rax),%rdx
  mov    %rdx,-0x20(%rbp)
  movb   $0x2d,(%rax)
  negq   -0x18(%rbp)
L5:
  mov    -0x18(%rbp),%rax
  mov    %eax,%edx
  mov    -0x20(%rbp),%rax
  mov    %rax,%rsi
  mov    %edx,%edi
  call   <print_uint32@plt>
  mov    -0x4(%rbp),%edx
  add    %edx,%eax
  leave
  ret
```

assistant: ```c
int print_int32(int32_t n, char *p) {
  int sign;
  if ((sign = n < 0)) {
    *p++ = '-';
    n = -n;
  }
  return print_uint32((uint32_t)n, p) + sign;
}
```
user: What would the C source look like for the assembly code provided here?

```asm
<print_int32>:
  endbr64
  push   %rbx
  mov    %rdi,%rbx
  shr    $0x3f,%rbx
  test   %rdi,%rdi
  js     L0
L15:
  call   <print_uint32@plt>
  add    %ebx,%eax
  pop    %rbx
  ret
L0:
  movb   $0x2d,(%rsi)
  neg    %rdi
  lea    0x1(%rsi),%rsi
  jmp    L15
```

assistant: ```c
int print_int32(int32_t n, char *p) {
  int sign;
  if ((sign = n < 0)) {
    *p++ = '-';
    n = -n;
  }
  return print_uint32((uint32_t)n, p) + sign;
}
```
user: 提供的汇编代码用C语言表示会是什么样子:

```asm
<print_int32>:
  endbr64
  push   %rbx
  mov    %rdi,%rbx
  shr    $0x3f,%rbx
  test   %rdi,%rdi
  jns    L3
  movb   $0x2d,(%rsi)
  neg    %rdi
  add    $0x1,%rsi
L3:
  call   <print_uint32@plt>
  add    %ebx,%eax
  pop    %rbx
  ret
```

assistant: ```c
int print_int32(int32_t n, char *p) {
  int sign;
  if ((sign = n < 0)) {
    *p++ = '-';
    n = -n;
  }
  return print_uint32((uint32_t)n, p) + sign;
}
```
user: 请将这段汇编代码片段转换成等效的C代码:

```asm
<print_int32>:
  endbr64
  push   %rbx
  mov    %rdi,%rbx
  shr    $0x3f,%rbx
  test   %rdi,%rdi
  jns    L3
  movb   $0x2d,(%rsi)
  neg    %rdi
  add    $0x1,%rsi
L3:
  call   <print_uint32@plt>
  add    %ebx,%eax
  pop    %rbx
  ret
```

assistant: ```c
int print_int32(int32_t n, char *p) {
  int sign;
  if ((sign = n < 0)) {
    *p++ = '-';
    n = -n;
  }
  return print_uint32((uint32_t)n, p) + sign;
}
```
user: 这段汇编代码用C语言表示是什么样的?

```asm
<vid_from_reg>:
  endbr64
  cmp    $0x55,%esi
  je     L141
  jle    L29
  cmp    $0x5b,%esi
  jle    L107
  cmp    $0x64,%esi
  jne    L98
  mov    %edi,%edx
  and    $0x1f,%edx
  mov    $0x0,%eax
  cmp    $0x1f,%edx
  je     L135
  cmp    $0xa,%edi
  je     L13
  cmp    $0x9,%edx
  jg     L121
L13:
  imul   $0xffffff06,%edx,%edx
  add    $0x2a7b,%edx
L41:
  lea    -0x7d(%rdx),%eax
  test   $0x20,%dil
  cmovne %eax,%edx
  movslq %edx,%rax
  imul   $0x66666667,%rax,%rax
  sar    $0x22,%rax
  sar    $0x1f,%edx
  sub    %edx,%eax
  ret
L29:
  cmp    $0x18,%esi
  je     L56
  cmp    $0x54,%esi
  jne    L98
  and    $0xf,%edi
L25:
  imul   $0xffffffce,%edi,%edi
  lea    0x802(%rdi),%eax
  jmp    L135
L107:
  cmp    $0x59,%esi
  jg     L15
L98:
  mov    $0x0,%eax
  cmp    $0x1f,%edi
  jne    L92
L135:
  ret
L121:
  imul   $0xffffff06,%edx,%edx
  add    $0x48c1,%edx
  jmp    L41
L56:
  mov    $0x0,%eax
  cmp    $0x1f,%edi
  je     L135
  imul   $0xffffffe7,%edi,%edi
  lea    0x60e(%rdi),%eax
  ret
L15:
  mov    $0x0,%eax
  cmp    $0x1f,%edi
  je     L135
  imul   $0xffffffe7,%edi,%edi
  lea    0x73a(%rdi),%eax
  ret
L141:
  mov    %edi,%eax
  and    $0x10,%eax
  mov    $0x19,%edx
  cmovne %edx,%eax
  and    $0xf,%edi
  cmp    $0x4,%edi
  mov    $0x802,%edx
  mov    $0x4e2,%ecx
  cmovle %ecx,%edx
  add    %edx,%eax
  imul   $0xffffffce,%edi,%edi
  add    %edi,%eax
  ret
L92:
  test   $0x10,%dil
  je     L25
  imul   $0xffffff9c,%edi,%edi
  lea    0x13ec(%rdi),%eax
  ret
```

assistant: ```c
int vid_from_reg(int val, int vrm) {
  int vid;
  switch (vrm) {
  case 100:
    if ((val & 0x1f) == 0x1f)
      return 0;
    if ((val & 0x1f) <= 0x09 || val == 0x0a)
      vid = 10875 - (val & 0x1f) * 250;
    else
      vid = 18625 - (val & 0x1f) * 250;
    if (val & 0x20)
      vid -= 125;
    vid /= 10;
    return vid;
  case 24:
    return (val == 0x1f ? 0 : 1550 - val * 25);
  case 91:
  case 90:
    return (val == 0x1f ? 0 : 1850 - val * 25);
  case 85:
    return ((val & 0x10 ? 25 : 0) + ((val & 0x0f) > 0x04 ? 2050 : 1250) - ((val & 0x0f) * 50));
  case 84:
    val &= 0x0f;
  default:
    return (val == 0x1f ? 0 : val & 0x10 ? 5100 - (val)*100 : 2050 - (val)*50);
  }
}
```