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
<validateIdentifier>:
  endbr64
  push   %rbp
  push   %rbx
  sub    $0x28,%rsp
  mov    %rdi,%rbx
  mov    %rsi,%rbp
  mov    %fs:0x28,%rax
  mov    %rax,0x18(%rsp)
  xor    %eax,%eax
  lea    0x4(%rsp),%rcx
  lea    0x10(%rsp),%rdx
  lea    0x8(%rsp),%rsi
  call   <readNextName@plt>
  test   %eax,%eax
  jne    L1
  cmpl   $0x64bc3efa,0x4(%rsp)
  sete   %al
  add    $0x9,%eax
  mov    %al,0x0(%rbp)
  lea    0x4(%rsp),%rcx
  lea    0x10(%rsp),%rdx
  lea    0x8(%rsp),%rsi
  mov    0x10(%rsp),%rdi
  call   <readNextString@plt>
  test   %eax,%eax
  jne    L48
L28:
  mov    0x18(%rsp),%rdx
  sub    %fs:0x28,%rdx
  jne    L46
  add    $0x28,%rsp
  pop    %rbx
  pop    %rbp
  ret
L1:
  lea    0x4(%rsp),%rcx
  lea    0x10(%rsp),%rdx
  lea    0x8(%rsp),%rsi
  mov    %rbx,%rdi
  call   <readNextName@plt>
  jmp    L28
L48:
  lea    0x4(%rsp),%rcx
  lea    0x10(%rsp),%rdx
  lea    0x8(%rsp),%rsi
  mov    0x10(%rsp),%rdi
  call   <readNextString@plt>
  jmp    L28
L46:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
unsigned int validateIdentifier(char *rule, unsigned char *identifierType) {
  char *first;
  char *last;
  unsigned int hash;
  do {
    if (readNextName(rule, &first, &last, &hash) != 0) {
      return readNextName(rule, &first, &last, &hash);
    }
  } while (0);
  *identifierType = 0x09;
  if (hash == 1690058490) {
    *identifierType = 0x0A;
  }
  do {
    if (readNextString(last, &first, &last, &hash) != 0) {
      return readNextString(last, &first, &last, &hash);
    }
  } while (0);
  return 0;
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<validateIdentifier>:
  endbr64
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  mov    %rdi,%rbp
  push   %rbx
  mov    %rsi,%rbx
  sub    $0x20,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x18(%rsp)
  xor    %eax,%eax
  lea    0x4(%rsp),%r14
  lea    0x10(%rsp),%r13
  lea    0x8(%rsp),%r12
  mov    %r14,%rcx
  mov    %r13,%rdx
  mov    %r12,%rsi
  call   <readNextName@plt>
  test   %eax,%eax
  jne    L42
  mov    0x10(%rsp),%rdi
  mov    %r14,%rcx
  mov    %r13,%rdx
  mov    %r12,%rsi
  cmpl   $0x64bc3efa,0x4(%rsp)
  sete   %al
  add    $0x9,%eax
  mov    %al,(%rbx)
  call   <readNextString@plt>
  test   %eax,%eax
  jne    L37
L21:
  mov    0x18(%rsp),%rdx
  sub    %fs:0x28,%rdx
  jne    L45
  add    $0x20,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  ret
  nopl   0x0(%rax,%rax,1)
L42:
  mov    %r14,%rcx
  mov    %r13,%rdx
  mov    %r12,%rsi
  mov    %rbp,%rdi
  call   <readNextName@plt>
  jmp    L21
  nopl   0x0(%rax,%rax,1)
L37:
  mov    0x10(%rsp),%rdi
  mov    %r14,%rcx
  mov    %r13,%rdx
  mov    %r12,%rsi
  call   <readNextString@plt>
  jmp    L21
L45:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
unsigned int validateIdentifier(char *rule, unsigned char *identifierType) {
  char *first;
  char *last;
  unsigned int hash;
  do {
    if (readNextName(rule, &first, &last, &hash) != 0) {
      return readNextName(rule, &first, &last, &hash);
    }
  } while (0);
  *identifierType = 0x09;
  if (hash == 1690058490) {
    *identifierType = 0x0A;
  }
  do {
    if (readNextString(last, &first, &last, &hash) != 0) {
      return readNextString(last, &first, &last, &hash);
    }
  } while (0);
  return 0;
}
```
user: 提供的汇编代码用C语言表示会是什么样子:

```asm
<validateIdentifier>:
  endbr64
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  mov    %rdi,%rbp
  push   %rbx
  mov    %rsi,%rbx
  sub    $0x20,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x18(%rsp)
  xor    %eax,%eax
  lea    0x4(%rsp),%r14
  lea    0x10(%rsp),%r13
  lea    0x8(%rsp),%r12
  mov    %r14,%rcx
  mov    %r13,%rdx
  mov    %r12,%rsi
  call   <readNextName@plt>
  test   %eax,%eax
  jne    L10
  mov    0x10(%rsp),%rdi
  mov    %r14,%rcx
  mov    %r13,%rdx
  mov    %r12,%rsi
  cmpl   $0x64bc3efa,0x4(%rsp)
  sete   %al
  add    $0x9,%eax
  mov    %al,(%rbx)
  call   <readNextString@plt>
  test   %eax,%eax
  jne    L30
L5:
  mov    0x18(%rsp),%rdx
  sub    %fs:0x28,%rdx
  jne    L26
  add    $0x20,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  ret
  nopl   0x0(%rax,%rax,1)
L10:
  mov    %r14,%rcx
  mov    %r13,%rdx
  mov    %r12,%rsi
  mov    %rbp,%rdi
  call   <readNextName@plt>
  jmp    L5
  nopl   0x0(%rax,%rax,1)
L30:
  mov    0x10(%rsp),%rdi
  mov    %r14,%rcx
  mov    %r13,%rdx
  mov    %r12,%rsi
  call   <readNextString@plt>
  jmp    L5
L26:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
unsigned int validateIdentifier(char *rule, unsigned char *identifierType) {
  char *first;
  char *last;
  unsigned int hash;
  do {
    if (readNextName(rule, &first, &last, &hash) != 0) {
      return readNextName(rule, &first, &last, &hash);
    }
  } while (0);
  *identifierType = 0x09;
  if (hash == 1690058490) {
    *identifierType = 0x0A;
  }
  do {
    if (readNextString(last, &first, &last, &hash) != 0) {
      return readNextString(last, &first, &last, &hash);
    }
  } while (0);
  return 0;
}
```
user: Please show me the C implementation that matches the assembly code listed below:

```asm
<ispalindromeS>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x20,%rsp
  mov    %rdi,-0x18(%rbp)
  mov    -0x18(%rbp),%rax
  mov    %rax,%rdi
  call   <strlen@plt>
  mov    %eax,-0x4(%rbp)
  mov    -0x4(%rbp),%eax
  sub    $0x1,%eax
  mov    %eax,-0xc(%rbp)
  movl   $0x0,-0x8(%rbp)
  jmp    L2
L14:
  mov    -0x8(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%ecx
  mov    -0xc(%rbp),%eax
  lea    -0x1(%rax),%edx
  mov    %edx,-0xc(%rbp)
  movslq %eax,%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  cmp    %al,%cl
  je     L28
  mov    $0x0,%eax
  jmp    L1
L28:
  addl   $0x1,-0x8(%rbp)
L2:
  mov    -0x4(%rbp),%eax
  mov    %eax,%edx
  shr    $0x1f,%edx
  add    %edx,%eax
  sar    %eax
  cmp    %eax,-0x8(%rbp)
  jl     L14
  mov    $0x1,%eax
L1:
  leave
  ret
```

assistant: ```c
int ispalindromeS(char *s) {
  int count = strlen(s);
  int last = count - 1;
  for (int i = 0; i < count / 2; i++)
    if (s[i] != s[last--])
      return 0;
  return 1;
}
```
user: 请从给定的汇编指令推导出C源代码：

```asm
<ispalindromeS>:
  endbr64
  push   %rbx
  mov    %rdi,%rbx
  call   <strlen@plt>
  mov    %eax,%ecx
  shr    $0x1f,%ecx
  add    %eax,%ecx
  sar    %ecx
  cmp    $0x1,%eax
  jle    L23
  lea    -0x1(%rax),%edx
  movslq %edx,%rdx
  add    %rbx,%rdx
  mov    $0x0,%eax
L17:
  movzbl (%rdx),%esi
  cmp    %sil,(%rbx,%rax,1)
  jne    L18
  add    $0x1,%rax
  sub    $0x1,%rdx
  cmp    %eax,%ecx
  jg     L17
  mov    $0x1,%eax
  jmp    L46
L23:
  mov    $0x1,%eax
  jmp    L46
L18:
  mov    $0x0,%eax
L46:
  pop    %rbx
  ret
```

assistant: ```c
int ispalindromeS(char *s) {
  int count = strlen(s);
  int last = count - 1;
  for (int i = 0; i < count / 2; i++)
    if (s[i] != s[last--])
      return 0;
  return 1;
}
```
user: Please show me the C implementation that matches the assembly code listed below:

```asm
<ispalindromeS>:
  endbr64
  push   %rbx
  mov    %rdi,%rbx
  call   <strlen@plt>
  mov    %eax,%ecx
  shr    $0x1f,%ecx
  add    %eax,%ecx
  sar    %ecx
  cmp    $0x1,%eax
  jle    L9
  lea    -0x1(%rax),%edx
  xor    %eax,%eax
  movslq %edx,%rdx
  add    %rbx,%rdx
  jmp    L27
  nopl   0x0(%rax,%rax,1)
L7:
  add    $0x1,%rax
  sub    $0x1,%rdx
  cmp    %eax,%ecx
  jle    L9
L27:
  movzbl (%rdx),%esi
  cmp    %sil,(%rbx,%rax,1)
  je     L7
  xor    %eax,%eax
  pop    %rbx
  ret
  nopl   0x0(%rax)
L9:
  mov    $0x1,%eax
  pop    %rbx
  ret
```

assistant: ```c
int ispalindromeS(char *s) {
  int count = strlen(s);
  int last = count - 1;
  for (int i = 0; i < count / 2; i++)
    if (s[i] != s[last--])
      return 0;
  return 1;
}
```
user: Demonstrate the C code that generates the assembly output below:

```asm
<ispalindromeS>:
  endbr64
  push   %rbx
  mov    %rdi,%rbx
  call   <strlen@plt>
  mov    %eax,%ecx
  shr    $0x1f,%ecx
  add    %eax,%ecx
  sar    %ecx
  cmp    $0x1,%eax
  jle    L6
  lea    -0x1(%rax),%edx
  xor    %eax,%eax
  movslq %edx,%rdx
  add    %rbx,%rdx
  jmp    L30
  nopl   0x0(%rax,%rax,1)
L2:
  add    $0x1,%rax
  sub    $0x1,%rdx
  cmp    %eax,%ecx
  jle    L6
L30:
  movzbl (%rdx),%esi
  cmp    %sil,(%rbx,%rax,1)
  je     L2
  xor    %eax,%eax
  pop    %rbx
  ret
  nopl   0x0(%rax)
L6:
  mov    $0x1,%eax
  pop    %rbx
  ret
```

assistant: ```c
int ispalindromeS(char *s) {
  int count = strlen(s);
  int last = count - 1;
  for (int i = 0; i < count / 2; i++)
    if (s[i] != s[last--])
      return 0;
  return 1;
}
```
user: 请将以下的汇编代码转换成C语言代码:

```asm
<ov5648_rio4g_2nd_update_awb_gain>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x10,%rsp
  mov    %edi,-0x4(%rbp)
  mov    %esi,-0x8(%rbp)
  mov    %edx,-0xc(%rbp)
  cmpl   $0x400,-0x4(%rbp)
  jle    L19
  mov    -0x4(%rbp),%eax
  sar    $0x8,%eax
  mov    %eax,%esi
  mov    $0x5186,%edi
  call   <ov5648_rio4g_2nd_my_otp_write@plt>
  mov    -0x4(%rbp),%eax
  movzbl %al,%eax
  mov    %eax,%esi
  mov    $0x5187,%edi
  call   <ov5648_rio4g_2nd_my_otp_write@plt>
L19:
  cmpl   $0x400,-0x8(%rbp)
  jle    L13
  mov    -0x8(%rbp),%eax
  sar    $0x8,%eax
  mov    %eax,%esi
  mov    $0x5188,%edi
  call   <ov5648_rio4g_2nd_my_otp_write@plt>
  mov    -0x8(%rbp),%eax
  movzbl %al,%eax
  mov    %eax,%esi
  mov    $0x5189,%edi
  call   <ov5648_rio4g_2nd_my_otp_write@plt>
L13:
  cmpl   $0x400,-0xc(%rbp)
  jle    L20
  mov    -0xc(%rbp),%eax
  sar    $0x8,%eax
  mov    %eax,%esi
  mov    $0x518a,%edi
  call   <ov5648_rio4g_2nd_my_otp_write@plt>
  mov    -0xc(%rbp),%eax
  movzbl %al,%eax
  mov    %eax,%esi
  mov    $0x518b,%edi
  call   <ov5648_rio4g_2nd_my_otp_write@plt>
L20:
  mov    $0x0,%eax
  leave
  ret
```

assistant: ```c
int ov5648_rio4g_2nd_update_awb_gain(int R_gain, int G_gain, int B_gain) {
  if (R_gain > 0x400) {
    ov5648_rio4g_2nd_my_otp_write(0x5186, R_gain >> 8);
    ov5648_rio4g_2nd_my_otp_write(0x5187, R_gain & 0x00ff);
  }
  if (G_gain > 0x400) {
    ov5648_rio4g_2nd_my_otp_write(0x5188, G_gain >> 8);
    ov5648_rio4g_2nd_my_otp_write(0x5189, G_gain & 0x00ff);
  }
  if (B_gain > 0x400) {
    ov5648_rio4g_2nd_my_otp_write(0x518a, B_gain >> 8);
    ov5648_rio4g_2nd_my_otp_write(0x518b, B_gain & 0x00ff);
  }
  return 0;
}
```
user: What is the c source code of the assembly code below?

```asm
<ov5648_rio4g_2nd_update_awb_gain>:
  endbr64
  push   %r12
  push   %rbp
  push   %rbx
  mov    %esi,%ebp
  mov    %edx,%ebx
  cmp    $0x400,%edi
  jg     L51
L34:
  cmp    $0x400,%ebp
  jg     L16
L24:
  cmp    $0x400,%ebx
  jg     L52
L6:
  mov    $0x0,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  ret
L51:
  mov    %edi,%r12d
  mov    %edi,%esi
  sar    $0x8,%esi
  mov    $0x5186,%edi
  call   <ov5648_rio4g_2nd_my_otp_write@plt>
  movzbl %r12b,%esi
  mov    $0x5187,%edi
  call   <ov5648_rio4g_2nd_my_otp_write@plt>
  jmp    L34
L16:
  mov    %ebp,%esi
  sar    $0x8,%esi
  mov    $0x5188,%edi
  call   <ov5648_rio4g_2nd_my_otp_write@plt>
  movzbl %bpl,%esi
  mov    $0x5189,%edi
  call   <ov5648_rio4g_2nd_my_otp_write@plt>
  jmp    L24
L52:
  mov    %ebx,%esi
  sar    $0x8,%esi
  mov    $0x518a,%edi
  call   <ov5648_rio4g_2nd_my_otp_write@plt>
  movzbl %bl,%esi
  mov    $0x518b,%edi
  call   <ov5648_rio4g_2nd_my_otp_write@plt>
  jmp    L6
```

assistant: ```c
int ov5648_rio4g_2nd_update_awb_gain(int R_gain, int G_gain, int B_gain) {
  if (R_gain > 0x400) {
    ov5648_rio4g_2nd_my_otp_write(0x5186, R_gain >> 8);
    ov5648_rio4g_2nd_my_otp_write(0x5187, R_gain & 0x00ff);
  }
  if (G_gain > 0x400) {
    ov5648_rio4g_2nd_my_otp_write(0x5188, G_gain >> 8);
    ov5648_rio4g_2nd_my_otp_write(0x5189, G_gain & 0x00ff);
  }
  if (B_gain > 0x400) {
    ov5648_rio4g_2nd_my_otp_write(0x518a, B_gain >> 8);
    ov5648_rio4g_2nd_my_otp_write(0x518b, B_gain & 0x00ff);
  }
  return 0;
}
```
user: 提供的汇编代码用C语言表示会是什么样子:

```asm
<ov5648_rio4g_2nd_update_awb_gain>:
  endbr64
  push   %r12
  push   %rbp
  mov    %esi,%ebp
  push   %rbx
  mov    %edx,%ebx
  cmp    $0x400,%edi
  jg     L9
  cmp    $0x400,%ebp
  jg     L16
L14:
  cmp    $0x400,%ebx
  jg     L22
L15:
  pop    %rbx
  xor    %eax,%eax
  pop    %rbp
  pop    %r12
  ret
  nopl   0x0(%rax,%rax,1)
L9:
  mov    %edi,%esi
  mov    %edi,%r12d
  mov    $0x5186,%edi
  sar    $0x8,%esi
  call   <ov5648_rio4g_2nd_my_otp_write@plt>
  movzbl %r12b,%esi
  mov    $0x5187,%edi
  call   <ov5648_rio4g_2nd_my_otp_write@plt>
  cmp    $0x400,%ebp
  jle    L14
L16:
  mov    %ebp,%esi
  mov    $0x5188,%edi
  sar    $0x8,%esi
  call   <ov5648_rio4g_2nd_my_otp_write@plt>
  movzbl %bpl,%esi
  mov    $0x5189,%edi
  call   <ov5648_rio4g_2nd_my_otp_write@plt>
  cmp    $0x400,%ebx
  jle    L15
L22:
  mov    %ebx,%esi
  mov    $0x518a,%edi
  sar    $0x8,%esi
  call   <ov5648_rio4g_2nd_my_otp_write@plt>
  movzbl %bl,%esi
  mov    $0x518b,%edi
  call   <ov5648_rio4g_2nd_my_otp_write@plt>
  pop    %rbx
  xor    %eax,%eax
  pop    %rbp
  pop    %r12
  ret
```

assistant: ```c
int ov5648_rio4g_2nd_update_awb_gain(int R_gain, int G_gain, int B_gain) {
  if (R_gain > 0x400) {
    ov5648_rio4g_2nd_my_otp_write(0x5186, R_gain >> 8);
    ov5648_rio4g_2nd_my_otp_write(0x5187, R_gain & 0x00ff);
  }
  if (G_gain > 0x400) {
    ov5648_rio4g_2nd_my_otp_write(0x5188, G_gain >> 8);
    ov5648_rio4g_2nd_my_otp_write(0x5189, G_gain & 0x00ff);
  }
  if (B_gain > 0x400) {
    ov5648_rio4g_2nd_my_otp_write(0x518a, B_gain >> 8);
    ov5648_rio4g_2nd_my_otp_write(0x518b, B_gain & 0x00ff);
  }
  return 0;
}
```
user: Please show me the C implementation that matches the assembly code listed below:

```asm
<ov5648_rio4g_2nd_update_awb_gain>:
  endbr64
  push   %r12
  push   %rbp
  mov    %esi,%ebp
  push   %rbx
  mov    %edx,%ebx
  cmp    $0x400,%edi
  jg     L17
  cmp    $0x400,%ebp
  jg     L20
L13:
  cmp    $0x400,%ebx
  jg     L23
L42:
  pop    %rbx
  xor    %eax,%eax
  pop    %rbp
  pop    %r12
  ret
  nopl   0x0(%rax,%rax,1)
L17:
  mov    %edi,%esi
  mov    %edi,%r12d
  mov    $0x5186,%edi
  sar    $0x8,%esi
  call   <ov5648_rio4g_2nd_my_otp_write@plt>
  movzbl %r12b,%esi
  mov    $0x5187,%edi
  call   <ov5648_rio4g_2nd_my_otp_write@plt>
  cmp    $0x400,%ebp
  jle    L13
L20:
  mov    %ebp,%esi
  mov    $0x5188,%edi
  sar    $0x8,%esi
  call   <ov5648_rio4g_2nd_my_otp_write@plt>
  movzbl %bpl,%esi
  mov    $0x5189,%edi
  call   <ov5648_rio4g_2nd_my_otp_write@plt>
  cmp    $0x400,%ebx
  jle    L42
L23:
  mov    %ebx,%esi
  mov    $0x518a,%edi
  sar    $0x8,%esi
  call   <ov5648_rio4g_2nd_my_otp_write@plt>
  movzbl %bl,%esi
  mov    $0x518b,%edi
  call   <ov5648_rio4g_2nd_my_otp_write@plt>
  pop    %rbx
  xor    %eax,%eax
  pop    %rbp
  pop    %r12
  ret
```

assistant: ```c
int ov5648_rio4g_2nd_update_awb_gain(int R_gain, int G_gain, int B_gain) {
  if (R_gain > 0x400) {
    ov5648_rio4g_2nd_my_otp_write(0x5186, R_gain >> 8);
    ov5648_rio4g_2nd_my_otp_write(0x5187, R_gain & 0x00ff);
  }
  if (G_gain > 0x400) {
    ov5648_rio4g_2nd_my_otp_write(0x5188, G_gain >> 8);
    ov5648_rio4g_2nd_my_otp_write(0x5189, G_gain & 0x00ff);
  }
  if (B_gain > 0x400) {
    ov5648_rio4g_2nd_my_otp_write(0x518a, B_gain >> 8);
    ov5648_rio4g_2nd_my_otp_write(0x518b, B_gain & 0x00ff);
  }
  return 0;
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<field>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x10,%rsp
  mov    %edi,-0x4(%rbp)
  mov    %esi,-0x8(%rbp)
  cmpl   $0x0,-0x4(%rbp)
  jne    L17
  mov    $0x0,%eax
  call   <reportNil@plt>
  jmp    L0
L17:
  mov    -0x4(%rbp),%edx
  mov    -0x8(%rbp),%eax
  add    %edx,%eax
  add    $0x4,%eax
L0:
  leave
  ret
```

assistant: ```c
int field(int recAddr, int offset) {
  if (recAddr == 0) {
    reportNil();
  } else {
    return (recAddr + offset + sizeof(int));
  }
}
```
user: 下面的汇编指令对应的C源代码是什么：

```asm
<field>:
  endbr64
  lea    0x4(%rdi,%rsi,1),%eax
  test   %edi,%edi
  je     L3
  ret
L3:
  sub    $0x8,%rsp
  mov    $0x0,%eax
  call   <reportNil@plt>
  add    $0x8,%rsp
  ret
```

assistant: ```c
int field(int recAddr, int offset) {
  if (recAddr == 0) {
    reportNil();
  } else {
    return (recAddr + offset + sizeof(int));
  }
}
```
user: 提供的汇编代码用C语言表示会是什么样子：

```asm
<field>:
  endbr64
  test   %edi,%edi
  je     L1
  lea    0x4(%rdi,%rsi,1),%eax
  ret
  nopl   (%rax)
L1:
  xor    %eax,%eax
  jmp    1050 <reportNil@plt>
```

assistant: ```c
int field(int recAddr, int offset) {
  if (recAddr == 0) {
    reportNil();
  } else {
    return (recAddr + offset + sizeof(int));
  }
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<field>:
  endbr64
  test   %edi,%edi
  je     L7
  lea    0x4(%rdi,%rsi,1),%eax
  ret
  nopl   (%rax)
L7:
  xor    %eax,%eax
  jmp    1050 <reportNil@plt>
```

assistant: ```c
int field(int recAddr, int offset) {
  if (recAddr == 0) {
    reportNil();
  } else {
    return (recAddr + offset + sizeof(int));
  }
}
```
user: 请从给定的汇编指令推导出C源代码:

```asm
<aes_shiftRows_inv>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  push   %rbx
  mov    %rdi,-0x10(%rbp)
  mov    -0x10(%rbp),%rax
  movzbl 0x1(%rax),%ebx
  mov    -0x10(%rbp),%rax
  lea    0x1(%rax),%rdx
  mov    -0x10(%rbp),%rax
  movzbl 0xd(%rax),%eax
  mov    %al,(%rdx)
  mov    -0x10(%rbp),%rax
  lea    0xd(%rax),%rdx
  mov    -0x10(%rbp),%rax
  movzbl 0x9(%rax),%eax
  mov    %al,(%rdx)
  mov    -0x10(%rbp),%rax
  lea    0x9(%rax),%rdx
  mov    -0x10(%rbp),%rax
  movzbl 0x5(%rax),%eax
  mov    %al,(%rdx)
  mov    -0x10(%rbp),%rax
  add    $0x5,%rax
  mov    %bl,(%rax)
  mov    -0x10(%rbp),%rax
  movzbl 0x2(%rax),%ebx
  mov    -0x10(%rbp),%rax
  lea    0x2(%rax),%rdx
  mov    -0x10(%rbp),%rax
  movzbl 0xa(%rax),%eax
  mov    %al,(%rdx)
  mov    -0x10(%rbp),%rax
  add    $0xa,%rax
  mov    %bl,(%rax)
  mov    -0x10(%rbp),%rax
  movzbl 0x3(%rax),%ebx
  mov    -0x10(%rbp),%rax
  lea    0x3(%rax),%rdx
  mov    -0x10(%rbp),%rax
  movzbl 0x7(%rax),%eax
  mov    %al,(%rdx)
  mov    -0x10(%rbp),%rax
  lea    0x7(%rax),%rdx
  mov    -0x10(%rbp),%rax
  movzbl 0xb(%rax),%eax
  mov    %al,(%rdx)
  mov    -0x10(%rbp),%rax
  lea    0xb(%rax),%rdx
  mov    -0x10(%rbp),%rax
  movzbl 0xf(%rax),%eax
  mov    %al,(%rdx)
  mov    -0x10(%rbp),%rax
  add    $0xf,%rax
  mov    %bl,(%rax)
  mov    -0x10(%rbp),%rax
  movzbl 0x6(%rax),%ebx
  mov    -0x10(%rbp),%rax
  lea    0x6(%rax),%rdx
  mov    -0x10(%rbp),%rax
  movzbl 0xe(%rax),%eax
  mov    %al,(%rdx)
  mov    -0x10(%rbp),%rax
  add    $0xe,%rax
  mov    %bl,(%rax)
  nop
  mov    -0x8(%rbp),%rbx
  leave
  ret
```

assistant: ```c
void aes_shiftRows_inv(unsigned char *buf) {
  register unsigned char i, j;
  i = buf[1];
  buf[1] = buf[13];
  buf[13] = buf[9];
  buf[9] = buf[5];
  buf[5] = i;
  i = buf[2];
  buf[2] = buf[10];
  buf[10] = i;
  j = buf[3];
  buf[3] = buf[7];
  buf[7] = buf[11];
  buf[11] = buf[15];
  buf[15] = j;
  j = buf[6];
  buf[6] = buf[14];
  buf[14] = j;
}
```
user: Demonstrate the C code that generates the assembly output below:

```asm
<aes_shiftRows_inv>:
  endbr64
  movzbl 0x1(%rdi),%eax
  movzbl 0xd(%rdi),%edx
  mov    %dl,0x1(%rdi)
  movzbl 0x9(%rdi),%edx
  mov    %dl,0xd(%rdi)
  movzbl 0x5(%rdi),%edx
  mov    %dl,0x9(%rdi)
  mov    %al,0x5(%rdi)
  movzbl 0x2(%rdi),%eax
  movzbl 0xa(%rdi),%edx
  mov    %dl,0x2(%rdi)
  mov    %al,0xa(%rdi)
  movzbl 0x3(%rdi),%eax
  movzbl 0x7(%rdi),%edx
  mov    %dl,0x3(%rdi)
  movzbl 0xb(%rdi),%edx
  mov    %dl,0x7(%rdi)
  movzbl 0xf(%rdi),%edx
  mov    %dl,0xb(%rdi)
  mov    %al,0xf(%rdi)
  movzbl 0x6(%rdi),%eax
  movzbl 0xe(%rdi),%edx
  mov    %dl,0x6(%rdi)
  mov    %al,0xe(%rdi)
  ret
```

assistant: ```c
void aes_shiftRows_inv(unsigned char *buf) {
  register unsigned char i, j;
  i = buf[1];
  buf[1] = buf[13];
  buf[13] = buf[9];
  buf[9] = buf[5];
  buf[5] = i;
  i = buf[2];
  buf[2] = buf[10];
  buf[10] = i;
  j = buf[3];
  buf[3] = buf[7];
  buf[7] = buf[11];
  buf[11] = buf[15];
  buf[15] = j;
  j = buf[6];
  buf[6] = buf[14];
  buf[14] = j;
}
```
user: 请显示与下面列出的汇编代码相匹配的C语言实现:

```asm
<aes_shiftRows_inv>:
  endbr64
  movzbl 0xd(%rdi),%edx
  movzbl 0x1(%rdi),%eax
  mov    %dl,0x1(%rdi)
  movzbl 0x9(%rdi),%edx
  mov    %dl,0xd(%rdi)
  movzbl 0x5(%rdi),%edx
  mov    %al,0x5(%rdi)
  movzbl 0x2(%rdi),%eax
  mov    %dl,0x9(%rdi)
  movzbl 0xa(%rdi),%edx
  mov    %al,0xa(%rdi)
  movzbl 0x3(%rdi),%eax
  mov    %dl,0x2(%rdi)
  movzbl 0x7(%rdi),%edx
  mov    %dl,0x3(%rdi)
  movzbl 0xb(%rdi),%edx
  mov    %dl,0x7(%rdi)
  movzbl 0xf(%rdi),%edx
  mov    %al,0xf(%rdi)
  movzbl 0x6(%rdi),%eax
  mov    %dl,0xb(%rdi)
  movzbl 0xe(%rdi),%edx
  mov    %al,0xe(%rdi)
  mov    %dl,0x6(%rdi)
  ret
```

assistant: ```c
void aes_shiftRows_inv(unsigned char *buf) {
  register unsigned char i, j;
  i = buf[1];
  buf[1] = buf[13];
  buf[13] = buf[9];
  buf[9] = buf[5];
  buf[5] = i;
  i = buf[2];
  buf[2] = buf[10];
  buf[10] = i;
  j = buf[3];
  buf[3] = buf[7];
  buf[7] = buf[11];
  buf[11] = buf[15];
  buf[15] = j;
  j = buf[6];
  buf[6] = buf[14];
  buf[14] = j;
}
```
user: What would the C source look like for the assembly code provided here?

```asm
<aes_shiftRows_inv>:
  endbr64
  movzbl 0xd(%rdi),%edx
  movzbl 0x1(%rdi),%eax
  mov    %dl,0x1(%rdi)
  movzbl 0x9(%rdi),%edx
  mov    %dl,0xd(%rdi)
  movzbl 0x5(%rdi),%edx
  mov    %al,0x5(%rdi)
  movzbl 0x2(%rdi),%eax
  mov    %dl,0x9(%rdi)
  movzbl 0xa(%rdi),%edx
  mov    %al,0xa(%rdi)
  movzbl 0x3(%rdi),%eax
  mov    %dl,0x2(%rdi)
  movzbl 0x7(%rdi),%edx
  mov    %dl,0x3(%rdi)
  movzbl 0xb(%rdi),%edx
  mov    %dl,0x7(%rdi)
  movzbl 0xf(%rdi),%edx
  mov    %al,0xf(%rdi)
  movzbl 0x6(%rdi),%eax
  mov    %dl,0xb(%rdi)
  movzbl 0xe(%rdi),%edx
  mov    %al,0xe(%rdi)
  mov    %dl,0x6(%rdi)
  ret
```

assistant: ```c
void aes_shiftRows_inv(unsigned char *buf) {
  register unsigned char i, j;
  i = buf[1];
  buf[1] = buf[13];
  buf[13] = buf[9];
  buf[9] = buf[5];
  buf[5] = i;
  i = buf[2];
  buf[2] = buf[10];
  buf[10] = i;
  j = buf[3];
  buf[3] = buf[7];
  buf[7] = buf[11];
  buf[11] = buf[15];
  buf[15] = j;
  j = buf[6];
  buf[6] = buf[14];
  buf[14] = j;
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<change_cscf_scaling>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    $0x0,%eax
  call   <calc_cscf_parameters@plt>
  nop
  pop    %rbp
  ret
```

assistant: ```c
void change_cscf_scaling(void) {
  ;
  calc_cscf_parameters();
}
```
user: 提供的汇编代码用C语言表示会是什么样子:

```asm
<change_cscf_scaling>:
  endbr64
  sub    $0x8,%rsp
  mov    $0x0,%eax
  call   <calc_cscf_parameters@plt>
  add    $0x8,%rsp
  ret
```

assistant: ```c
void change_cscf_scaling(void) {
  ;
  calc_cscf_parameters();
}
```
user: What is the c source code of the assembly code below?

```asm
<change_cscf_scaling>:
  endbr64
  xor    %eax,%eax
  jmp    1050 <calc_cscf_parameters@plt>
```

assistant: ```c
void change_cscf_scaling(void) {
  ;
  calc_cscf_parameters();
}
```
user: 请将以下的汇编代码转换成C语言代码：

```asm
<change_cscf_scaling>:
  endbr64
  xor    %eax,%eax
  jmp    1050 <calc_cscf_parameters@plt>
```

assistant: ```c
void change_cscf_scaling(void) {
  ;
  calc_cscf_parameters();
}
```
user: 请将以下的汇编代码转换成C语言代码:

```asm
<_fls>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    %edi,-0x14(%rbp)
  movl   $0x1f,-0x4(%rbp)
  cmpl   $0x0,-0x14(%rbp)
  jne    L16
  mov    $0xffffffff,%eax
  jmp    L36
L16:
  mov    -0x14(%rbp),%eax
  mov    $0x0,%ax
  test   %eax,%eax
  jne    L30
  shll   $0x10,-0x14(%rbp)
  subl   $0x10,-0x4(%rbp)
L30:
  mov    -0x14(%rbp),%eax
  and    $0xff000000,%eax
  test   %eax,%eax
  jne    L37
  shll   $0x8,-0x14(%rbp)
  subl   $0x8,-0x4(%rbp)
L37:
  mov    -0x14(%rbp),%eax
  and    $0xf0000000,%eax
  test   %eax,%eax
  jne    L44
  shll   $0x4,-0x14(%rbp)
  subl   $0x4,-0x4(%rbp)
L44:
  mov    -0x14(%rbp),%eax
  and    $0xc0000000,%eax
  test   %eax,%eax
  jne    L65
  shll   $0x2,-0x14(%rbp)
  subl   $0x2,-0x4(%rbp)
L65:
  cmpl   $0x0,-0x14(%rbp)
  js     L32
  shll   -0x14(%rbp)
  subl   $0x1,-0x4(%rbp)
L32:
  mov    -0x4(%rbp),%eax
L36:
  pop    %rbp
  ret
```

assistant: ```c
int _fls(int x) {
  int r = 31;
  if (!x)
    return -1;
  if (!(x & 0xffff0000)) {
    x <<= 16;
    r -= 16;
  }
  if (!(x & 0xff000000)) {
    x <<= 8;
    r -= 8;
  }
  if (!(x & 0xf0000000)) {
    x <<= 4;
    r -= 4;
  }
  if (!(x & 0xc0000000)) {
    x <<= 2;
    r -= 2;
  }
  if (!(x & 0x80000000)) {
    x <<= 1;
    r -= 1;
  }
  return r;
}
```