ylfeng/ReF-Decompile-dataset huggingface dataset:
user: Converte this assembly snippet into its equivalent C code:

```asm
<__timedwait>:
  endbr64
  push   %r15
  mov    %r9,%r15
  push   %r14
  mov    %edx,%r14d
  push   %r13
  mov    %rcx,%r13
  push   %r12
  mov    %esi,%r12d
  push   %rbp
  mov    %rdi,%rbp
  sub    $0x10,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x8(%rsp)
  xor    %eax,%eax
  test   %r8,%r8
  je     L14
  mov    %r8,%rdi
  mov    %r9,%rsi
  call   <pthread_cleanup_push@plt>
  mov    0x40(%rsp),%r8d
  mov    %r12d,%esi
  mov    %rbp,%rdi
  mov    %r13,%rcx
  mov    %r14d,%edx
  call   <do_wait@plt>
  xor    %edi,%edi
  mov    %eax,%r12d
  call   <pthread_cleanup_pop@plt>
L29:
  mov    0x8(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L5
  add    $0x10,%rsp
  mov    %r12d,%eax
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
  nopl   0x0(%rax)
L14:
  mov    D0(%rip),%rax
  lea    0x4(%rsp),%rsi
  mov    (%rax),%edi
  call   <pthread_setcancelstate@plt>
  mov    %r15,%rsi
  xor    %edi,%edi
  call   <pthread_cleanup_push@plt>
  mov    0x40(%rsp),%r8d
  mov    %r12d,%esi
  mov    %r13,%rcx
  mov    %r14d,%edx
  mov    %rbp,%rdi
  call   <do_wait@plt>
  xor    %edi,%edi
  mov    %eax,%r12d
  call   <pthread_cleanup_pop@plt>
  mov    0x4(%rsp),%edi
  xor    %esi,%esi
  call   <pthread_setcancelstate@plt>
  jmp    L29
L5:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
int __timedwait(volatile int *addr, int val, clockid_t clk, const struct timespec *at, void (*cleanup)(void *), void *arg, int priv) {
  int r, cs;
  if (!cleanup)
    pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, &cs);
  pthread_cleanup_push(cleanup, arg);
  r = do_wait(addr, val, clk, at, priv);
  pthread_cleanup_pop(0);
  if (!cleanup)
    pthread_setcancelstate(cs, 0);
  return r;
}
```
user: Demonstrate the C code that generates the assembly output below:

```asm
<f>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    %edi,-0x14(%rbp)
  movss  %xmm0,-0x18(%rbp)
  mov    -0x14(%rbp),%eax
  imul   %eax,%eax
  mov    %eax,-0x4(%rbp)
  pxor   %xmm0,%xmm0
  cvtsi2ssl -0x4(%rbp),%xmm0
  addss  -0x18(%rbp),%xmm0
  pop    %rbp
  ret
```

assistant: ```c
float f(int x, float y) {
  int z = x * x;
  return y + z;
}
```
user: Translate the below assembly code into C programming language:

```asm
<f>:
  endbr64
  movaps %xmm0,%xmm1
  imul   %edi,%edi
  pxor   %xmm0,%xmm0
  cvtsi2ss %edi,%xmm0
  addss  %xmm1,%xmm0
  ret
```

assistant: ```c
float f(int x, float y) {
  int z = x * x;
  return y + z;
}
```
user: 下面的汇编指令对应的C源代码是什么:

```asm
<f>:
  endbr64
  imul   %edi,%edi
  movaps %xmm0,%xmm1
  pxor   %xmm0,%xmm0
  cvtsi2ss %edi,%xmm0
  addss  %xmm1,%xmm0
  ret
```

assistant: ```c
float f(int x, float y) {
  int z = x * x;
  return y + z;
}
```
user: Demonstrate the C code that generates the assembly output below:

```asm
<f>:
  endbr64
  imul   %edi,%edi
  movaps %xmm0,%xmm1
  pxor   %xmm0,%xmm0
  cvtsi2ss %edi,%xmm0
  addss  %xmm1,%xmm0
  ret
```

assistant: ```c
float f(int x, float y) {
  int z = x * x;
  return y + z;
}
```
user: 这段汇编代码用C语言表示是什么样的?

```asm
<BNCLCDEchoOn>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x10,%rsp
  movq   $0x63,-0x8(%rbp)
  mov    $0x1,%esi
  mov    $0x21,%edi
  call   <BNCIO2@plt>
  mov    -0x8(%rbp),%rax
  leave
  ret
```

assistant: ```c
long int BNCLCDEchoOn() {
  long int stat = 99;
  BNCIO2(33, 1);
  return (stat);
}
```
user: 请从给定的汇编指令推导出C源代码：

```asm
<BNCLCDEchoOn>:
  endbr64
  sub    $0x8,%rsp
  mov    $0x1,%esi
  mov    $0x21,%edi
  call   <BNCIO2@plt>
  mov    $0x63,%eax
  add    $0x8,%rsp
  ret
```

assistant: ```c
long int BNCLCDEchoOn() {
  long int stat = 99;
  BNCIO2(33, 1);
  return (stat);
}
```
user: 请将这段汇编代码片段转换成等效的C代码：

```asm
<BNCLCDEchoOn>:
  endbr64
  sub    $0x8,%rsp
  mov    $0x1,%esi
  mov    $0x21,%edi
  call   <BNCIO2@plt>
  mov    $0x63,%eax
  add    $0x8,%rsp
  ret
```

assistant: ```c
long int BNCLCDEchoOn() {
  long int stat = 99;
  BNCIO2(33, 1);
  return (stat);
}
```
user: What would the C source look like for the assembly code provided here?

```asm
<BNCLCDEchoOn>:
  endbr64
  sub    $0x8,%rsp
  mov    $0x1,%esi
  mov    $0x21,%edi
  call   <BNCIO2@plt>
  mov    $0x63,%eax
  add    $0x8,%rsp
  ret
```

assistant: ```c
long int BNCLCDEchoOn() {
  long int stat = 99;
  BNCIO2(33, 1);
  return (stat);
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<Q_stricmpn>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    %rdi,-0x18(%rbp)
  mov    %rsi,-0x20(%rbp)
  mov    %edx,-0x24(%rbp)
  cmpq   $0x0,-0x18(%rbp)
  jne    L20
  cmpq   $0x0,-0x20(%rbp)
  jne    L30
  mov    $0x0,%eax
  jmp    L9
L30:
  mov    $0xffffffff,%eax
  jmp    L9
L20:
  cmpq   $0x0,-0x20(%rbp)
  jne    L121
  mov    $0x1,%eax
  jmp    L9
L121:
  mov    -0x18(%rbp),%rax
  lea    0x1(%rax),%rdx
  mov    %rdx,-0x18(%rbp)
  movzbl (%rax),%eax
  movsbl %al,%eax
  mov    %eax,-0x8(%rbp)
  mov    -0x20(%rbp),%rax
  lea    0x1(%rax),%rdx
  mov    %rdx,-0x20(%rbp)
  movzbl (%rax),%eax
  movsbl %al,%eax
  mov    %eax,-0x4(%rbp)
  mov    -0x24(%rbp),%eax
  lea    -0x1(%rax),%edx
  mov    %edx,-0x24(%rbp)
  test   %eax,%eax
  jne    L63
  mov    $0x0,%eax
  jmp    L9
L63:
  mov    -0x8(%rbp),%eax
  cmp    -0x4(%rbp),%eax
  je     L91
  cmpl   $0x60,-0x8(%rbp)
  jle    L124
  cmpl   $0x7a,-0x8(%rbp)
  jg     L124
  subl   $0x20,-0x8(%rbp)
L124:
  cmpl   $0x60,-0x4(%rbp)
  jle    L32
  cmpl   $0x7a,-0x4(%rbp)
  jg     L32
  subl   $0x20,-0x4(%rbp)
L32:
  mov    -0x8(%rbp),%eax
  cmp    -0x4(%rbp),%eax
  je     L91
  mov    -0x8(%rbp),%eax
  cmp    -0x4(%rbp),%eax
  jge    L75
  mov    $0xffffffff,%eax
  jmp    L9
L75:
  mov    $0x1,%eax
  jmp    L9
L91:
  cmpl   $0x0,-0x8(%rbp)
  jne    L121
  mov    $0x0,%eax
L9:
  pop    %rbp
  ret
```

assistant: ```c
int Q_stricmpn(const char *s1, const char *s2, int n) {
  int c1, c2;
  if (s1 == NULL) {
    if (s2 == NULL)
      return 0;
    else
      return -1;
  } else if (s2 == NULL)
    return 1;
  do {
    c1 = *s1++;
    c2 = *s2++;
    if (!n--) {
      return 0;
    }
    if (c1 != c2) {
      if (c1 >= 'a' && c1 <= 'z') {
        c1 -= ('a' - 'A');
      }
      if (c2 >= 'a' && c2 <= 'z') {
        c2 -= ('a' - 'A');
      }
      if (c1 != c2) {
        return c1 < c2 ? -1 : 1;
      }
    }
  } while (c1);
  return 0;
}
```
user: Translate the below assembly code into C programming language:

```asm
<Q_stricmpn>:
  endbr64
  mov    %rdi,%r10
  mov    %rsi,%r9
  test   %rdi,%rdi
  je     L129
  test   %rsi,%rsi
  je     L96
  mov    %edx,%edx
  mov    $0x0,%edi
  jmp    L78
L129:
  neg    %r9
  sbb    %esi,%esi
L23:
  mov    %esi,%eax
  ret
L56:
  mov    %esi,%r8d
  mov    %eax,%esi
L4:
  cmp    %esi,%r8d
  setge  %sil
  movzbl %sil,%esi
  lea    -0x1(%rsi,%rsi,1),%esi
  jmp    L23
L96:
  mov    $0x1,%esi
  jmp    L23
L107:
  mov    $0x0,%esi
  jmp    L23
L89:
  movsbl %cl,%ecx
  sub    $0x61,%ecx
  cmp    $0x19,%ecx
  ja     L4
L32:
  lea    -0x20(%rsi),%eax
  mov    %r8d,%esi
L97:
  cmp    %esi,%eax
  jne    L56
L120:
  add    $0x1,%rdi
  test   %esi,%esi
  je     L23
L78:
  movzbl (%r10,%rdi,1),%eax
  movsbl %al,%r8d
  movzbl (%r9,%rdi,1),%ecx
  movsbl %cl,%esi
  cmp    %rdx,%rdi
  je     L107
  cmp    %esi,%r8d
  je     L120
  mov    %r8d,%eax
  sub    $0x61,%eax
  cmp    $0x19,%eax
  ja     L89
  sub    $0x20,%r8d
  mov    %esi,%ecx
  sub    $0x61,%ecx
  cmp    $0x19,%ecx
  jbe    L32
  mov    %esi,%eax
  mov    %r8d,%esi
  jmp    L97
```

assistant: ```c
int Q_stricmpn(const char *s1, const char *s2, int n) {
  int c1, c2;
  if (s1 == NULL) {
    if (s2 == NULL)
      return 0;
    else
      return -1;
  } else if (s2 == NULL)
    return 1;
  do {
    c1 = *s1++;
    c2 = *s2++;
    if (!n--) {
      return 0;
    }
    if (c1 != c2) {
      if (c1 >= 'a' && c1 <= 'z') {
        c1 -= ('a' - 'A');
      }
      if (c2 >= 'a' && c2 <= 'z') {
        c2 -= ('a' - 'A');
      }
      if (c1 != c2) {
        return c1 < c2 ? -1 : 1;
      }
    }
  } while (c1);
  return 0;
}
```
user: 请将以下的汇编代码转换成C语言代码：

```asm
<Q_stricmpn>:
  endbr64
  test   %rdi,%rdi
  je     L32
  test   %rsi,%rsi
  je     L62
  mov    %edx,%edx
  xor    %ecx,%ecx
  jmp    L88
  nopl   0x0(%rax,%rax,1)
L64:
  sub    $0x20,%r8d
  cmp    $0x19,%r10d
  jbe    L68
  mov    %eax,%r9d
  mov    %r8d,%eax
L66:
  cmp    %r8d,%r9d
  jne    L35
L61:
  add    $0x1,%rcx
  test   %eax,%eax
  je     L85
L88:
  movsbl (%rdi,%rcx,1),%r8d
  movsbl (%rsi,%rcx,1),%eax
  cmp    %rcx,%rdx
  je     L84
  cmp    %eax,%r8d
  je     L61
  lea    -0x61(%r8),%r9d
  lea    -0x61(%rax),%r10d
  cmp    $0x19,%r9d
  jbe    L64
  cmp    $0x19,%r10d
  ja     L14
L68:
  lea    -0x20(%rax),%r9d
  mov    %r8d,%eax
  jmp    L66
  nopl   (%rax)
L32:
  neg    %rsi
  sbb    %eax,%eax
  ret
  cs nopw 0x0(%rax,%rax,1)
L84:
  xor    %eax,%eax
  ret
  nopl   0x0(%rax,%rax,1)
L85:
  ret
L35:
  mov    %r9d,%eax
L14:
  cmp    %eax,%r8d
  setge  %al
  movzbl %al,%eax
  lea    -0x1(%rax,%rax,1),%eax
  ret
  nopw   0x0(%rax,%rax,1)
L62:
  mov    $0x1,%eax
  ret
```

assistant: ```c
int Q_stricmpn(const char *s1, const char *s2, int n) {
  int c1, c2;
  if (s1 == NULL) {
    if (s2 == NULL)
      return 0;
    else
      return -1;
  } else if (s2 == NULL)
    return 1;
  do {
    c1 = *s1++;
    c2 = *s2++;
    if (!n--) {
      return 0;
    }
    if (c1 != c2) {
      if (c1 >= 'a' && c1 <= 'z') {
        c1 -= ('a' - 'A');
      }
      if (c2 >= 'a' && c2 <= 'z') {
        c2 -= ('a' - 'A');
      }
      if (c1 != c2) {
        return c1 < c2 ? -1 : 1;
      }
    }
  } while (c1);
  return 0;
}
```
user: What would the C source look like for the assembly code provided here?

```asm
<Q_stricmpn>:
  endbr64
  test   %rdi,%rdi
  je     L81
  test   %rsi,%rsi
  je     L66
  mov    %edx,%edx
  xor    %ecx,%ecx
  jmp    L19
  nopl   0x0(%rax,%rax,1)
L72:
  sub    $0x20,%r8d
  cmp    $0x19,%r10d
  jbe    L82
  mov    %eax,%r9d
  mov    %r8d,%eax
L105:
  cmp    %r8d,%r9d
  jne    L80
L64:
  add    $0x1,%rcx
  test   %eax,%eax
  je     L9
L19:
  movsbl (%rdi,%rcx,1),%r8d
  movsbl (%rsi,%rcx,1),%eax
  cmp    %rcx,%rdx
  je     L54
  cmp    %eax,%r8d
  je     L64
  lea    -0x61(%r8),%r9d
  lea    -0x61(%rax),%r10d
  cmp    $0x19,%r9d
  jbe    L72
  cmp    $0x19,%r10d
  ja     L16
L82:
  lea    -0x20(%rax),%r9d
  mov    %r8d,%eax
  jmp    L105
  nopl   (%rax)
L81:
  neg    %rsi
  sbb    %eax,%eax
  ret
  cs nopw 0x0(%rax,%rax,1)
L54:
  xor    %eax,%eax
  ret
  nopl   0x0(%rax,%rax,1)
L9:
  ret
L80:
  mov    %r9d,%eax
L16:
  cmp    %eax,%r8d
  setge  %al
  movzbl %al,%eax
  lea    -0x1(%rax,%rax,1),%eax
  ret
  nopw   0x0(%rax,%rax,1)
L66:
  mov    $0x1,%eax
  ret
```

assistant: ```c
int Q_stricmpn(const char *s1, const char *s2, int n) {
  int c1, c2;
  if (s1 == NULL) {
    if (s2 == NULL)
      return 0;
    else
      return -1;
  } else if (s2 == NULL)
    return 1;
  do {
    c1 = *s1++;
    c2 = *s2++;
    if (!n--) {
      return 0;
    }
    if (c1 != c2) {
      if (c1 >= 'a' && c1 <= 'z') {
        c1 -= ('a' - 'A');
      }
      if (c2 >= 'a' && c2 <= 'z') {
        c2 -= ('a' - 'A');
      }
      if (c1 != c2) {
        return c1 < c2 ? -1 : 1;
      }
    }
  } while (c1);
  return 0;
}
```
user: 请从给定的汇编指令推导出C源代码:

```asm
<main>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x30,%rsp
  mov    %edi,-0x24(%rbp)
  mov    %rsi,-0x30(%rbp)
  movl   $0xffffffff,-0x18(%rbp)
  movl   $0xffffffff,-0x14(%rbp)
  cmpl   $0x3,-0x24(%rbp)
  je     L78
  mov    $0x0,%eax
  call   <usage@plt>
  mov    D67(%rip),%rax
  mov    (%rax),%eax
  mov    %eax,%edi
  call   <exit@plt>
L78:
  mov    -0x30(%rbp),%rax
  mov    0x8(%rax),%rax
  mov    %rax,-0x10(%rbp)
  mov    -0x30(%rbp),%rax
  mov    0x10(%rax),%rax
  mov    %rax,-0x8(%rbp)
  mov    D46(%rip),%rax
  mov    (%rax),%edx
  mov    -0x10(%rbp),%rax
  mov    %edx,%esi
  mov    %rax,%rdi
  mov    $0x0,%eax
  call   <open@plt>
  mov    %eax,-0x18(%rbp)
  cmpl   $0xffffffff,-0x18(%rbp)
  je     L45
  mov    D55(%rip),%rax
  mov    (%rax),%edx
  mov    D77(%rip),%rax
  mov    (%rax),%eax
  or     %eax,%edx
  mov    D14(%rip),%rax
  mov    (%rax),%eax
  or     %eax,%edx
  mov    D79(%rip),%rax
  mov    (%rax),%eax
  or     %eax,%edx
  mov    D2(%rip),%rax
  mov    (%rax),%ecx
  mov    D66(%rip),%rax
  mov    (%rax),%eax
  or     %eax,%ecx
  mov    D87(%rip),%rax
  mov    (%rax),%eax
  or     %eax,%ecx
  mov    -0x8(%rbp),%rax
  mov    %ecx,%esi
  mov    %rax,%rdi
  mov    $0x0,%eax
  call   <open@plt>
  mov    %eax,-0x14(%rbp)
  cmpl   $0xffffffff,-0x14(%rbp)
  je     L12
  mov    -0x14(%rbp),%edx
  mov    -0x18(%rbp),%eax
  mov    %edx,%esi
  mov    %eax,%edi
  call   <copy@plt>
  test   %rax,%rax
  jne    L102
  mov    -0x14(%rbp),%eax
  mov    %eax,%edi
  call   <close@plt>
  test   %rax,%rax
  je     L1
  movl   $0xffffffff,-0x14(%rbp)
  jmp    L40
L1:
  mov    -0x18(%rbp),%eax
  mov    %eax,%edi
  call   <close@plt>
  test   %rax,%rax
  je     L118
  movl   $0xffffffff,-0x18(%rbp)
  jmp    L40
L118:
  mov    D21(%rip),%rax
  mov    (%rax),%eax
  jmp    L107
L45:
  nop
  jmp    L40
L12:
  nop
  jmp    L40
L102:
  nop
L40:
  cmpl   $0xffffffff,-0x18(%rbp)
  je     L67
  mov    -0x18(%rbp),%eax
  mov    %eax,%edi
  call   <close@plt>
L67:
  mov    $0x0,%eax
  call   <error@plt>
  mov    $0x0,%eax
L107:
  leave
  ret
```

assistant: ```c
int main(int argc, char *argv[]) {
  char *src_filename, *dest_filename;
  int src_fd = -1, dest_fd = -1;
  if (argc != 3) {
    usage();
    exit(EXIT_FAILURE);
  }
  src_filename = argv[1];
  dest_filename = argv[2];
  src_fd = open(src_filename, O_RDONLY);
  if (src_fd == -1) {
    goto fail;
  }
  dest_fd = open(dest_filename, O_WRONLY | O_CREAT | O_TRUNC, (mode_t)(S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP));
  if (dest_fd == -1) {
    goto fail;
  }
  if (copy(src_fd, dest_fd) != 0) {
    goto fail;
  }
  if (close(dest_fd) != 0) {
    dest_fd = -1;
    goto fail;
  }
  if (close(src_fd) != 0) {
    src_fd = -1;
    goto fail;
  }
  return EXIT_SUCCESS;
fail:
  if (src_fd != -1) {
    close(src_fd);
  }
  error();
}
```
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
  push   %rbp
  push   %rbx
  sub    $0x8,%rsp
  mov    %rsi,%rbx
  cmp    $0x3,%edi
  jne    L42
L22:
  mov    0x10(%rbx),%rbp
  mov    0x8(%rbx),%rdi
  mov    D79(%rip),%rax
  mov    (%rax),%esi
  mov    $0x0,%eax
  call   <open@plt>
  mov    %eax,%ebx
  cmp    $0xffffffff,%eax
  je     L61
  mov    D32(%rip),%rax
  mov    (%rax),%edx
  mov    D97(%rip),%rax
  or     (%rax),%edx
  mov    D59(%rip),%rax
  or     (%rax),%edx
  mov    D18(%rip),%rax
  or     (%rax),%edx
  mov    D3(%rip),%rax
  mov    (%rax),%esi
  mov    D13(%rip),%rax
  or     (%rax),%esi
  mov    D53(%rip),%rax
  or     (%rax),%esi
  mov    %rbp,%rdi
  mov    $0x0,%eax
  call   <open@plt>
  mov    %eax,%ebp
  cmp    $0xffffffff,%eax
  je     L32
  mov    %eax,%esi
  mov    %ebx,%edi
  call   <copy@plt>
  test   %rax,%rax
  je     L65
L32:
  mov    %ebx,%edi
  call   <close@plt>
L61:
  mov    $0x0,%eax
  call   <error@plt>
  mov    $0x0,%eax
L33:
  add    $0x8,%rsp
  pop    %rbx
  pop    %rbp
  ret
L42:
  mov    $0x0,%eax
  call   <usage@plt>
  mov    D15(%rip),%rax
  mov    (%rax),%edi
  call   <exit@plt>
  jmp    L22
L65:
  mov    %ebp,%edi
  call   <close@plt>
  test   %rax,%rax
  jne    L32
  mov    %ebx,%edi
  call   <close@plt>
  test   %rax,%rax
  jne    L61
  mov    D38(%rip),%rax
  mov    (%rax),%eax
  jmp    L33
```

assistant: ```c
int main(int argc, char *argv[]) {
  char *src_filename, *dest_filename;
  int src_fd = -1, dest_fd = -1;
  if (argc != 3) {
    usage();
    exit(EXIT_FAILURE);
  }
  src_filename = argv[1];
  dest_filename = argv[2];
  src_fd = open(src_filename, O_RDONLY);
  if (src_fd == -1) {
    goto fail;
  }
  dest_fd = open(dest_filename, O_WRONLY | O_CREAT | O_TRUNC, (mode_t)(S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP));
  if (dest_fd == -1) {
    goto fail;
  }
  if (copy(src_fd, dest_fd) != 0) {
    goto fail;
  }
  if (close(dest_fd) != 0) {
    dest_fd = -1;
    goto fail;
  }
  if (close(src_fd) != 0) {
    src_fd = -1;
    goto fail;
  }
  return EXIT_SUCCESS;
fail:
  if (src_fd != -1) {
    close(src_fd);
  }
  error();
}
```
user: 这段汇编代码用C语言表示是什么样的？

```asm
<main>:
  endbr64
  push   %r12
  push   %rbp
  mov    %rsi,%rbp
  sub    $0x8,%rsp
  cmp    $0x3,%edi
  je     L19
  xor    %eax,%eax
  call   <usage@plt>
  mov    D92(%rip),%rax
  mov    (%rax),%edi
  call   <exit@plt>
L19:
  mov    D19(%rip),%rax
  mov    0x8(%rbp),%rdi
  mov    0x10(%rbp),%r12
  mov    (%rax),%esi
  xor    %eax,%eax
  call   <open@plt>
  mov    %eax,%ebp
  cmp    $0xffffffff,%eax
  je     L17
  mov    D23(%rip),%rax
  mov    %r12,%rdi
  mov    (%rax),%edx
  mov    D41(%rip),%rax
  or     (%rax),%edx
  mov    D30(%rip),%rax
  or     (%rax),%edx
  mov    D83(%rip),%rax
  or     (%rax),%edx
  mov    D87(%rip),%rax
  mov    (%rax),%esi
  mov    D78(%rip),%rax
  or     (%rax),%esi
  mov    D2(%rip),%rax
  or     (%rax),%esi
  xor    %eax,%eax
  call   <open@plt>
  mov    %eax,%r12d
  cmp    $0xffffffff,%eax
  je     L62
  mov    %eax,%esi
  mov    %ebp,%edi
  call   <copy@plt>
  test   %rax,%rax
  jne    L62
  mov    %r12d,%edi
  call   <close@plt>
  test   %rax,%rax
  je     L65
L62:
  mov    %ebp,%edi
  call   <close@plt>
L17:
  xor    %eax,%eax
  call   <error@plt>
  xor    %eax,%eax
L61:
  add    $0x8,%rsp
  pop    %rbp
  pop    %r12
  ret
L65:
  mov    %ebp,%edi
  call   <close@plt>
  test   %rax,%rax
  jne    L17
  mov    D74(%rip),%rax
  mov    (%rax),%eax
  jmp    L61
```

assistant: ```c
int main(int argc, char *argv[]) {
  char *src_filename, *dest_filename;
  int src_fd = -1, dest_fd = -1;
  if (argc != 3) {
    usage();
    exit(EXIT_FAILURE);
  }
  src_filename = argv[1];
  dest_filename = argv[2];
  src_fd = open(src_filename, O_RDONLY);
  if (src_fd == -1) {
    goto fail;
  }
  dest_fd = open(dest_filename, O_WRONLY | O_CREAT | O_TRUNC, (mode_t)(S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP));
  if (dest_fd == -1) {
    goto fail;
  }
  if (copy(src_fd, dest_fd) != 0) {
    goto fail;
  }
  if (close(dest_fd) != 0) {
    dest_fd = -1;
    goto fail;
  }
  if (close(src_fd) != 0) {
    src_fd = -1;
    goto fail;
  }
  return EXIT_SUCCESS;
fail:
  if (src_fd != -1) {
    close(src_fd);
  }
  error();
}
```
user: Translate the below assembly code into C programming language:

```asm
<main>:
  endbr64
  push   %r12
  push   %rbp
  mov    %rsi,%rbp
  sub    $0x8,%rsp
  cmp    $0x3,%edi
  je     L42
  xor    %eax,%eax
  call   <usage@plt>
  mov    D3(%rip),%rax
  mov    (%rax),%edi
  call   <exit@plt>
L42:
  mov    D16(%rip),%rax
  mov    0x8(%rbp),%rdi
  mov    0x10(%rbp),%r12
  mov    (%rax),%esi
  xor    %eax,%eax
  call   <open@plt>
  mov    %eax,%ebp
  cmp    $0xffffffff,%eax
  je     L27
  mov    D57(%rip),%rax
  mov    %r12,%rdi
  mov    (%rax),%edx
  mov    D70(%rip),%rax
  or     (%rax),%edx
  mov    D11(%rip),%rax
  or     (%rax),%edx
  mov    D5(%rip),%rax
  or     (%rax),%edx
  mov    D81(%rip),%rax
  mov    (%rax),%esi
  mov    D49(%rip),%rax
  or     (%rax),%esi
  mov    D19(%rip),%rax
  or     (%rax),%esi
  xor    %eax,%eax
  call   <open@plt>
  mov    %eax,%r12d
  cmp    $0xffffffff,%eax
  je     L0
  mov    %eax,%esi
  mov    %ebp,%edi
  call   <copy@plt>
  test   %rax,%rax
  jne    L0
  mov    %r12d,%edi
  call   <close@plt>
  test   %rax,%rax
  je     L39
L0:
  mov    %ebp,%edi
  call   <close@plt>
L27:
  xor    %eax,%eax
  call   <error@plt>
  xor    %eax,%eax
L14:
  add    $0x8,%rsp
  pop    %rbp
  pop    %r12
  ret
L39:
  mov    %ebp,%edi
  call   <close@plt>
  test   %rax,%rax
  jne    L27
  mov    D94(%rip),%rax
  mov    (%rax),%eax
  jmp    L14
```

assistant: ```c
int main(int argc, char *argv[]) {
  char *src_filename, *dest_filename;
  int src_fd = -1, dest_fd = -1;
  if (argc != 3) {
    usage();
    exit(EXIT_FAILURE);
  }
  src_filename = argv[1];
  dest_filename = argv[2];
  src_fd = open(src_filename, O_RDONLY);
  if (src_fd == -1) {
    goto fail;
  }
  dest_fd = open(dest_filename, O_WRONLY | O_CREAT | O_TRUNC, (mode_t)(S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP));
  if (dest_fd == -1) {
    goto fail;
  }
  if (copy(src_fd, dest_fd) != 0) {
    goto fail;
  }
  if (close(dest_fd) != 0) {
    dest_fd = -1;
    goto fail;
  }
  if (close(src_fd) != 0) {
    src_fd = -1;
    goto fail;
  }
  return EXIT_SUCCESS;
fail:
  if (src_fd != -1) {
    close(src_fd);
  }
  error();
}
```
user: What is the c source code of the assembly code below?

```asm
<hamming>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    %rdi,-0x28(%rbp)
  mov    %rsi,-0x30(%rbp)
  mov    %rdx,-0x38(%rbp)
  movl   $0x0,-0x10(%rbp)
  movq   $0x0,-0x8(%rbp)
  jmp    L43
L44:
  mov    -0x30(%rbp),%rdx
  mov    -0x8(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%edx
  mov    -0x38(%rbp),%rcx
  mov    -0x8(%rbp),%rax
  add    %rcx,%rax
  movzbl (%rax),%eax
  xor    %edx,%eax
  mov    %al,-0x11(%rbp)
  movl   $0x0,-0xc(%rbp)
  jmp    L53
L3:
  movsbl -0x11(%rbp),%eax
  and    $0x1,%eax
  add    %eax,-0x10(%rbp)
  sarb   -0x11(%rbp)
  addl   $0x1,-0xc(%rbp)
L53:
  cmpl   $0x7,-0xc(%rbp)
  jle    L3
  addq   $0x1,-0x8(%rbp)
L43:
  mov    -0x8(%rbp),%rax
  cmp    -0x28(%rbp),%rax
  jae    L20
  mov    -0x30(%rbp),%rdx
  mov    -0x8(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  test   %al,%al
  jne    L44
  mov    -0x38(%rbp),%rdx
  mov    -0x8(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  test   %al,%al
  jne    L44
L20:
  mov    -0x10(%rbp),%eax
  pop    %rbp
  ret
```

assistant: ```c
int hamming(size_t size, const char *lhs, const char *rhs) {
  int result = 0;
  for (size_t i = 0; i < size && (lhs[i] || rhs[i]); i++) {
    char difference = lhs[i] ^ rhs[i];
    for (int j = 0; j < 8; j++) {
      result += difference & 1;
      difference >>= 1;
    }
  }
  return result;
}
```
user: 请将这段汇编代码片段转换成等效的C代码：

```asm
<hamming>:
  endbr64
  mov    $0x0,%r10d
  mov    $0x0,%r8d
  test   %rdi,%rdi
  jne    L32
  jmp    L4
L53:
  xor    (%rdx,%r10,1),%al
  mov    $0x8,%ecx
L31:
  mov    %eax,%r9d
  and    $0x1,%r9d
  add    %r9d,%r8d
  sar    %al
  sub    $0x1,%ecx
  jne    L31
  add    $0x1,%r10
  cmp    %r10,%rdi
  je     L4
L32:
  movzbl (%rsi,%r10,1),%eax
  test   %al,%al
  jne    L53
  cmpb   $0x0,(%rdx,%r10,1)
  jne    L53
L4:
  mov    %r8d,%eax
  ret
```

assistant: ```c
int hamming(size_t size, const char *lhs, const char *rhs) {
  int result = 0;
  for (size_t i = 0; i < size && (lhs[i] || rhs[i]); i++) {
    char difference = lhs[i] ^ rhs[i];
    for (int j = 0; j < 8; j++) {
      result += difference & 1;
      difference >>= 1;
    }
  }
  return result;
}
```
user: Please show me the C implementation that matches the assembly code listed below:

```asm
<hamming>:
  endbr64
  xor    %r10d,%r10d
  xor    %r8d,%r8d
  test   %rdi,%rdi
  je     L33
  nop
L20:
  movzbl (%rsi,%r10,1),%eax
  movzbl (%rdx,%r10,1),%ecx
  mov    %eax,%r11d
  or     %cl,%r11b
  je     L33
  xor    %ecx,%eax
  mov    $0x8,%ecx
  nopl   0x0(%rax)
L7:
  mov    %eax,%r9d
  sar    %al
  and    $0x1,%r9d
  add    %r9d,%r8d
  sub    $0x1,%ecx
  jne    L7
  add    $0x1,%r10
  cmp    %r10,%rdi
  jne    L20
L33:
  mov    %r8d,%eax
  ret
```

assistant: ```c
int hamming(size_t size, const char *lhs, const char *rhs) {
  int result = 0;
  for (size_t i = 0; i < size && (lhs[i] || rhs[i]); i++) {
    char difference = lhs[i] ^ rhs[i];
    for (int j = 0; j < 8; j++) {
      result += difference & 1;
      difference >>= 1;
    }
  }
  return result;
}
```