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
<xytest>:
  endbr64
  mov    %edx,(%rdi)
  cmp    $0x63,%edx
  jle    L8
  movslq %edx,%rax
  sar    $0x1f,%edx
  imul   $0x51eb851f,%rax,%rax
  sar    $0x25,%rax
  sub    %edx,%eax
  mov    %eax,(%rsi)
  imul   $0xffffff9c,%eax,%eax
  add    %eax,(%rdi)
L8:
  ret
```

assistant: ```c
void xytest(int *x, int *y, int pixel) {
  const int max = 100;
  (*x) = pixel;
  if ((*x) >= max) {
    (*y) = (*x) / max;
    (*x) = (*x) - (max * (*y));
  }
}
```
user: 请将这段汇编代码片段转换成等效的C代码：

```asm
<txt2html_nofont>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x30,%rsp
  mov    %rdi,-0x18(%rbp)
  mov    %esi,-0x1c(%rbp)
  mov    %rdx,-0x28(%rbp)
  mov    %rcx,-0x30(%rbp)
  mov    -0x1c(%rbp),%edx
  mov    %edx,%eax
  shl    $0x3,%eax
  sub    %edx,%eax
  mov    %eax,-0x10(%rbp)
  mov    -0x10(%rbp),%eax
  add    $0x1,%eax
  mov    %eax,%edi
  call   <malloc@plt>
  mov    %rax,-0x8(%rbp)
  mov    -0x10(%rbp),%ecx
  mov    -0x8(%rbp),%rdx
  mov    -0x1c(%rbp),%esi
  mov    -0x18(%rbp),%rax
  mov    %rax,%rdi
  call   <txt2html@plt>
  mov    %eax,-0xc(%rbp)
  cmpl   $0x0,-0xc(%rbp)
  js     L3
  mov    -0xc(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x8(%rbp),%rax
  add    %rdx,%rax
  movb   $0x0,(%rax)
  mov    -0x28(%rbp),%rax
  mov    -0x8(%rbp),%rdx
  mov    %rdx,(%rax)
  mov    -0x30(%rbp),%rax
  mov    -0xc(%rbp),%edx
  mov    %edx,(%rax)
  jmp    L17
L3:
  mov    -0x8(%rbp),%rax
  mov    %rax,%rdi
  call   <free@plt>
  mov    -0x28(%rbp),%rax
  movq   $0x0,(%rax)
  mov    -0x30(%rbp),%rax
  movl   $0x0,(%rax)
L17:
  mov    -0xc(%rbp),%eax
  leave
  ret
```

assistant: ```c
int txt2html_nofont(unsigned char *str, int len, unsigned char **pnewstr, int *plen) {
  int txtlen;
  int htmllen;
  unsigned char *newstr;
  txtlen = len * 7;
  newstr = (unsigned char *)malloc(txtlen + 1);
  htmllen = txt2html(str, len, newstr, txtlen);
  if (htmllen >= 0) {
    newstr[htmllen] = '\0';
    *pnewstr = newstr;
    *plen = htmllen;
  } else {
    free(newstr);
    *pnewstr = NULL;
    *plen = 0;
  }
  return htmllen;
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<txt2html_nofont>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x8,%rsp
  mov    %rdi,%r15
  mov    %esi,%ebx
  mov    %rdx,%r13
  mov    %rcx,%r12
  lea    0x0(,%rsi,8),%r14d
  sub    %esi,%r14d
  lea    0x1(%r14),%edi
  call   <malloc@plt>
  mov    %rax,%rbp
  mov    %r14d,%ecx
  mov    %rax,%rdx
  mov    %ebx,%esi
  mov    %r15,%rdi
  call   <txt2html@plt>
  mov    %eax,%ebx
  test   %eax,%eax
  js     L9
  cltq
  movb   $0x0,0x0(%rbp,%rax,1)
  mov    %ebx,%eax
L5:
  mov    %rbp,0x0(%r13)
  mov    %eax,(%r12)
  mov    %ebx,%eax
  add    $0x8,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L9:
  mov    %rbp,%rdi
  call   <free@plt>
  mov    $0x0,%ebp
  mov    $0x0,%eax
  jmp    L5
```

assistant: ```c
int txt2html_nofont(unsigned char *str, int len, unsigned char **pnewstr, int *plen) {
  int txtlen;
  int htmllen;
  unsigned char *newstr;
  txtlen = len * 7;
  newstr = (unsigned char *)malloc(txtlen + 1);
  htmllen = txt2html(str, len, newstr, txtlen);
  if (htmllen >= 0) {
    newstr[htmllen] = '\0';
    *pnewstr = newstr;
    *plen = htmllen;
  } else {
    free(newstr);
    *pnewstr = NULL;
    *plen = 0;
  }
  return htmllen;
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<txt2html_nofont>:
  endbr64
  push   %r15
  mov    %rdi,%r15
  push   %r14
  lea    0x0(,%rsi,8),%r14d
  push   %r13
  sub    %esi,%r14d
  mov    %rdx,%r13
  push   %r12
  lea    0x1(%r14),%edi
  mov    %esi,%r12d
  push   %rbp
  push   %rbx
  mov    %rcx,%rbx
  sub    $0x8,%rsp
  call   <malloc@plt>
  mov    %r12d,%esi
  mov    %r14d,%ecx
  mov    %r15,%rdi
  mov    %rax,%rdx
  mov    %rax,%rbp
  call   <txt2html@plt>
  mov    %eax,%r12d
  test   %eax,%eax
  js     L6
  cltq
  movb   $0x0,0x0(%rbp,%rax,1)
  mov    %r12d,%eax
L11:
  mov    %rbp,0x0(%r13)
  mov    %eax,(%rbx)
  add    $0x8,%rsp
  mov    %r12d,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
  nop
L6:
  mov    %rbp,%rdi
  xor    %ebp,%ebp
  call   <free@plt>
  xor    %eax,%eax
  jmp    L11
```

assistant: ```c
int txt2html_nofont(unsigned char *str, int len, unsigned char **pnewstr, int *plen) {
  int txtlen;
  int htmllen;
  unsigned char *newstr;
  txtlen = len * 7;
  newstr = (unsigned char *)malloc(txtlen + 1);
  htmllen = txt2html(str, len, newstr, txtlen);
  if (htmllen >= 0) {
    newstr[htmllen] = '\0';
    *pnewstr = newstr;
    *plen = htmllen;
  } else {
    free(newstr);
    *pnewstr = NULL;
    *plen = 0;
  }
  return htmllen;
}
```
user: 请从给定的汇编指令推导出C源代码：

```asm
<txt2html_nofont>:
  endbr64
  push   %r15
  mov    %rdi,%r15
  push   %r14
  lea    0x0(,%rsi,8),%r14d
  push   %r13
  sub    %esi,%r14d
  mov    %rdx,%r13
  push   %r12
  lea    0x1(%r14),%edi
  mov    %esi,%r12d
  push   %rbp
  push   %rbx
  mov    %rcx,%rbx
  sub    $0x8,%rsp
  call   <malloc@plt>
  mov    %r12d,%esi
  mov    %r14d,%ecx
  mov    %r15,%rdi
  mov    %rax,%rdx
  mov    %rax,%rbp
  call   <txt2html@plt>
  mov    %eax,%r12d
  test   %eax,%eax
  js     L5
  cltq
  movb   $0x0,0x0(%rbp,%rax,1)
  mov    %r12d,%eax
L14:
  mov    %rbp,0x0(%r13)
  mov    %eax,(%rbx)
  add    $0x8,%rsp
  mov    %r12d,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
  nop
L5:
  mov    %rbp,%rdi
  xor    %ebp,%ebp
  call   <free@plt>
  xor    %eax,%eax
  jmp    L14
```

assistant: ```c
int txt2html_nofont(unsigned char *str, int len, unsigned char **pnewstr, int *plen) {
  int txtlen;
  int htmllen;
  unsigned char *newstr;
  txtlen = len * 7;
  newstr = (unsigned char *)malloc(txtlen + 1);
  htmllen = txt2html(str, len, newstr, txtlen);
  if (htmllen >= 0) {
    newstr[htmllen] = '\0';
    *pnewstr = newstr;
    *plen = htmllen;
  } else {
    free(newstr);
    *pnewstr = NULL;
    *plen = 0;
  }
  return htmllen;
}
```
user: 这段汇编代码用C语言表示是什么样的?

```asm
<quickSort>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x20,%rsp
  mov    %rdi,-0x18(%rbp)
  mov    %esi,-0x1c(%rbp)
  mov    %edx,-0x20(%rbp)
  mov    -0x1c(%rbp),%eax
  cmp    -0x20(%rbp),%eax
  jge    L9
  mov    -0x20(%rbp),%edx
  mov    -0x1c(%rbp),%ecx
  mov    -0x18(%rbp),%rax
  mov    %ecx,%esi
  mov    %rax,%rdi
  call   <partition@plt>
  mov    %eax,-0x4(%rbp)
  mov    -0x4(%rbp),%eax
  lea    -0x1(%rax),%edx
  mov    -0x1c(%rbp),%ecx
  mov    -0x18(%rbp),%rax
  mov    %ecx,%esi
  mov    %rax,%rdi
  call   <quickSort>
  mov    -0x4(%rbp),%eax
  lea    0x1(%rax),%ecx
  mov    -0x20(%rbp),%edx
  mov    -0x18(%rbp),%rax
  mov    %ecx,%esi
  mov    %rax,%rdi
  call   <quickSort>
L9:
  nop
  leave
  ret
```

assistant: ```c
void quickSort(long long *v, const int left, const int right) {
  if (left < right) {
    int i = partition(v, left, right);
    quickSort(v, left, i - 1);
    quickSort(v, i + 1, right);
  }
}
```
user: 请将以下的汇编代码转换成C语言代码：

```asm
<quickSort>:
  endbr64
  cmp    %edx,%esi
  jl     L2
  ret
L2:
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x8,%rsp
  mov    %rdi,%r12
  mov    %esi,%r13d
  mov    %edx,%ebx
  call   <partition@plt>
  mov    %eax,%ebp
  lea    -0x1(%rax),%edx
  mov    %r13d,%esi
  mov    %r12,%rdi
  call   <quickSort>
  lea    0x1(%rbp),%esi
  mov    %ebx,%edx
  mov    %r12,%rdi
  call   <quickSort>
  add    $0x8,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
```

assistant: ```c
void quickSort(long long *v, const int left, const int right) {
  if (left < right) {
    int i = partition(v, left, right);
    quickSort(v, left, i - 1);
    quickSort(v, i + 1, right);
  }
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<float_as_uint>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  movss  %xmm0,-0x4(%rbp)
  movss  -0x4(%rbp),%xmm0
  movss  %xmm0,D17(%rip)
  mov    D17(%rip),%eax
  pop    %rbp
  ret
```

assistant: ```c
uint32_t float_as_uint(float f) {
  static union {
    uint32_t i;
    float f;
  } _box;
  _box.f = f;
  return _box.i;
}
```
user: 请从给定的汇编指令推导出C源代码:

```asm
<float_as_uint>:
  endbr64
  movd   %xmm0,%eax
  ret
```

assistant: ```c
uint32_t float_as_uint(float f) {
  static union {
    uint32_t i;
    float f;
  } _box;
  _box.f = f;
  return _box.i;
}
```
user: Demonstrate the C code that generates the assembly output below:

```asm
<float_as_uint>:
  endbr64
  movd   %xmm0,%eax
  ret
```

assistant: ```c
uint32_t float_as_uint(float f) {
  static union {
    uint32_t i;
    float f;
  } _box;
  _box.f = f;
  return _box.i;
}
```
user: 请从给定的汇编指令推导出C源代码：

```asm
<float_as_uint>:
  endbr64
  movd   %xmm0,%eax
  ret
```

assistant: ```c
uint32_t float_as_uint(float f) {
  static union {
    uint32_t i;
    float f;
  } _box;
  _box.f = f;
  return _box.i;
}
```
user: 下面的汇编指令对应的C源代码是什么：

```asm
<url_encode>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x30,%rsp
  mov    %rdi,-0x28(%rbp)
  mov    %rsi,-0x30(%rbp)
  mov    -0x28(%rbp),%rax
  mov    %rax,-0x18(%rbp)
  mov    -0x30(%rbp),%rax
  mov    %rax,-0x8(%rbp)
  mov    -0x8(%rbp),%rax
  mov    %rax,-0x10(%rbp)
  jmp    L78
L55:
  mov    -0x18(%rbp),%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  mov    %eax,%edi
  call   <isalnum@plt>
  test   %rax,%rax
  jne    L40
  mov    -0x18(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x2d,%al
  je     L40
  mov    -0x18(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x5f,%al
  je     L40
  mov    -0x18(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x2e,%al
  je     L40
  mov    -0x18(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x7e,%al
  jne    L20
L40:
  mov    -0x10(%rbp),%rax
  lea    0x1(%rax),%rdx
  mov    %rdx,-0x10(%rbp)
  mov    -0x18(%rbp),%rdx
  movzbl (%rdx),%edx
  mov    %dl,(%rax)
  jmp    L68
L20:
  mov    -0x18(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x20,%al
  jne    L93
  mov    -0x10(%rbp),%rax
  lea    0x1(%rax),%rdx
  mov    %rdx,-0x10(%rbp)
  movb   $0x2b,(%rax)
  jmp    L68
L93:
  mov    -0x10(%rbp),%rax
  lea    0x1(%rax),%rdx
  mov    %rdx,-0x10(%rbp)
  movb   $0x25,(%rax)
  mov    -0x18(%rbp),%rax
  movzbl (%rax),%eax
  sar    $0x4,%al
  movsbl %al,%eax
  mov    %eax,%edi
  call   <to_hex@plt>
  mov    %rax,%rcx
  mov    -0x10(%rbp),%rax
  lea    0x1(%rax),%rdx
  mov    %rdx,-0x10(%rbp)
  mov    %ecx,%edx
  mov    %dl,(%rax)
  mov    -0x18(%rbp),%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  and    $0xf,%eax
  mov    %eax,%edi
  call   <to_hex@plt>
  mov    %rax,%rcx
  mov    -0x10(%rbp),%rax
  lea    0x1(%rax),%rdx
  mov    %rdx,-0x10(%rbp)
  mov    %ecx,%edx
  mov    %dl,(%rax)
L68:
  addq   $0x1,-0x18(%rbp)
L78:
  mov    -0x18(%rbp),%rax
  movzbl (%rax),%eax
  test   %al,%al
  jne    L55
  mov    -0x10(%rbp),%rax
  movb   $0x0,(%rax)
  nop
  leave
  ret
```

assistant: ```c
void url_encode(char *str, char *dest) {
  char *pstr = str, *buf = dest, *pbuf = buf;
  while (*pstr) {
    if (isalnum(*pstr) || *pstr == '-' || *pstr == '_' || *pstr == '.' || *pstr == '~')
      *pbuf++ = *pstr;
    else if (*pstr == ' ')
      *pbuf++ = '+';
    else
      *pbuf++ = '%', *pbuf++ = to_hex(*pstr >> 4), *pbuf++ = to_hex(*pstr & 15);
    pstr++;
  }
  *pbuf = '\0';
}
```
user: 请将以下的汇编代码转换成C语言代码:

```asm
<url_encode>:
  endbr64
  push   %rbp
  push   %rbx
  sub    $0x8,%rsp
  mov    %rdi,%rbx
  mov    %rsi,%rbp
  movzbl (%rdi),%edi
  test   %dil,%dil
  jne    L35
L5:
  movb   $0x0,0x0(%rbp)
  add    $0x8,%rsp
  pop    %rbx
  pop    %rbp
  ret
L15:
  movzbl (%rbx),%eax
  mov    %al,0x0(%rbp)
  lea    0x1(%rbp),%rbp
L57:
  add    $0x1,%rbx
  movzbl (%rbx),%edi
  test   %dil,%dil
  je     L5
L35:
  movsbl %dil,%edi
  call   <isalnum@plt>
  test   %rax,%rax
  jne    L15
  movzbl (%rbx),%eax
  cmp    $0x5f,%al
  sete   %dl
  cmp    $0x7e,%al
  sete   %cl
  or     %cl,%dl
  jne    L15
  lea    -0x2d(%rax),%edx
  cmp    $0x1,%dl
  jbe    L15
  cmp    $0x20,%al
  jne    L71
  movb   $0x2b,0x0(%rbp)
  lea    0x1(%rbp),%rbp
  jmp    L57
L71:
  movb   $0x25,0x0(%rbp)
  movzbl (%rbx),%edi
  sar    $0x4,%dil
  movsbl %dil,%edi
  call   <to_hex@plt>
  mov    %al,0x1(%rbp)
  movzbl (%rbx),%edi
  and    $0xf,%edi
  call   <to_hex@plt>
  mov    %al,0x2(%rbp)
  lea    0x3(%rbp),%rbp
  jmp    L57
```

assistant: ```c
void url_encode(char *str, char *dest) {
  char *pstr = str, *buf = dest, *pbuf = buf;
  while (*pstr) {
    if (isalnum(*pstr) || *pstr == '-' || *pstr == '_' || *pstr == '.' || *pstr == '~')
      *pbuf++ = *pstr;
    else if (*pstr == ' ')
      *pbuf++ = '+';
    else
      *pbuf++ = '%', *pbuf++ = to_hex(*pstr >> 4), *pbuf++ = to_hex(*pstr & 15);
    pstr++;
  }
  *pbuf = '\0';
}
```
user: 下面的汇编指令对应的C源代码是什么:

```asm
<url_encode>:
  endbr64
  push   %rbp
  mov    %rsi,%rbp
  push   %rbx
  mov    %rdi,%rbx
  sub    $0x8,%rsp
  movsbl (%rdi),%edi
  test   %dil,%dil
  je     L28
  nopl   0x0(%rax,%rax,1)
L1:
  call   <isalnum@plt>
  test   %rax,%rax
  movzbl (%rbx),%eax
  jne    L74
  cmp    $0x5f,%al
  sete   %dl
  cmp    $0x7e,%al
  sete   %cl
  or     %cl,%dl
  jne    L74
  lea    -0x2d(%rax),%edx
  cmp    $0x1,%dl
  ja     L24
L74:
  mov    %al,0x0(%rbp)
  add    $0x1,%rbp
L34:
  movsbl 0x1(%rbx),%edi
  add    $0x1,%rbx
  test   %dil,%dil
  jne    L1
L28:
  movb   $0x0,0x0(%rbp)
  add    $0x8,%rsp
  pop    %rbx
  pop    %rbp
  ret
  nopw   0x0(%rax,%rax,1)
L24:
  cmp    $0x20,%al
  jne    L51
  movb   $0x2b,0x0(%rbp)
  add    $0x1,%rbp
  jmp    L34
  cs nopw 0x0(%rax,%rax,1)
L51:
  movb   $0x25,0x0(%rbp)
  movzbl (%rbx),%edi
  add    $0x3,%rbp
  sar    $0x4,%dil
  movsbl %dil,%edi
  call   <to_hex@plt>
  mov    %al,-0x2(%rbp)
  movzbl (%rbx),%edi
  and    $0xf,%edi
  call   <to_hex@plt>
  mov    %al,-0x1(%rbp)
  jmp    L34
```

assistant: ```c
void url_encode(char *str, char *dest) {
  char *pstr = str, *buf = dest, *pbuf = buf;
  while (*pstr) {
    if (isalnum(*pstr) || *pstr == '-' || *pstr == '_' || *pstr == '.' || *pstr == '~')
      *pbuf++ = *pstr;
    else if (*pstr == ' ')
      *pbuf++ = '+';
    else
      *pbuf++ = '%', *pbuf++ = to_hex(*pstr >> 4), *pbuf++ = to_hex(*pstr & 15);
    pstr++;
  }
  *pbuf = '\0';
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<url_encode>:
  endbr64
  push   %rbp
  mov    %rsi,%rbp
  push   %rbx
  mov    %rdi,%rbx
  sub    $0x8,%rsp
  movsbl (%rdi),%edi
  test   %dil,%dil
  je     L41
  nopl   0x0(%rax,%rax,1)
L13:
  call   <isalnum@plt>
  test   %rax,%rax
  movzbl (%rbx),%eax
  jne    L52
  cmp    $0x5f,%al
  sete   %dl
  cmp    $0x7e,%al
  sete   %cl
  or     %cl,%dl
  jne    L52
  lea    -0x2d(%rax),%edx
  cmp    $0x1,%dl
  ja     L23
L52:
  mov    %al,0x0(%rbp)
  add    $0x1,%rbp
L32:
  movsbl 0x1(%rbx),%edi
  add    $0x1,%rbx
  test   %dil,%dil
  jne    L13
L41:
  movb   $0x0,0x0(%rbp)
  add    $0x8,%rsp
  pop    %rbx
  pop    %rbp
  ret
  nopw   0x0(%rax,%rax,1)
L23:
  cmp    $0x20,%al
  jne    L45
  movb   $0x2b,0x0(%rbp)
  add    $0x1,%rbp
  jmp    L32
  cs nopw 0x0(%rax,%rax,1)
L45:
  movb   $0x25,0x0(%rbp)
  movzbl (%rbx),%edi
  add    $0x3,%rbp
  sar    $0x4,%dil
  movsbl %dil,%edi
  call   <to_hex@plt>
  mov    %al,-0x2(%rbp)
  movzbl (%rbx),%edi
  and    $0xf,%edi
  call   <to_hex@plt>
  mov    %al,-0x1(%rbp)
  jmp    L32
```

assistant: ```c
void url_encode(char *str, char *dest) {
  char *pstr = str, *buf = dest, *pbuf = buf;
  while (*pstr) {
    if (isalnum(*pstr) || *pstr == '-' || *pstr == '_' || *pstr == '.' || *pstr == '~')
      *pbuf++ = *pstr;
    else if (*pstr == ' ')
      *pbuf++ = '+';
    else
      *pbuf++ = '%', *pbuf++ = to_hex(*pstr >> 4), *pbuf++ = to_hex(*pstr & 15);
    pstr++;
  }
  *pbuf = '\0';
}
```
user: What would the C source look like for the assembly code provided here:

```asm
<edge_index>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    %edi,-0x24(%rbp)
  mov    -0x24(%rbp),%eax
  shr    %eax
  or     -0x24(%rbp),%eax
  not    %eax
  mov    %eax,-0x14(%rbp)
  mov    -0x24(%rbp),%eax
  shr    %eax
  and    $0x1,%eax
  mov    %eax,%edx
  mov    -0x24(%rbp),%eax
  shr    $0x2,%eax
  and    $0x2,%eax
  or     %eax,%edx
  mov    -0x24(%rbp),%eax
  shr    $0x3,%eax
  and    $0x4,%eax
  or     %eax,%edx
  mov    -0x24(%rbp),%eax
  shl    $0x2,%eax
  and    $0x8,%eax
  or     %edx,%eax
  mov    %eax,-0x10(%rbp)
  mov    -0x10(%rbp),%eax
  shr    %eax
  mov    %eax,-0xc(%rbp)
  mov    -0x10(%rbp),%eax
  shr    $0x2,%eax
  or     $0x4,%eax
  mov    %eax,-0x8(%rbp)
  mov    -0x10(%rbp),%eax
  and    $0x3,%eax
  or     $0x8,%eax
  mov    %eax,-0x4(%rbp)
  mov    -0x14(%rbp),%eax
  and    $0x1,%eax
  neg    %eax
  and    -0xc(%rbp),%eax
  mov    %eax,%edx
  mov    -0x14(%rbp),%eax
  shr    $0x2,%eax
  and    $0x1,%eax
  neg    %eax
  and    -0x8(%rbp),%eax
  or     %eax,%edx
  mov    -0x14(%rbp),%eax
  shr    $0x4,%eax
  and    $0x1,%eax
  neg    %eax
  and    -0x4(%rbp),%eax
  or     %edx,%eax
  pop    %rbp
  ret
```

assistant: ```c
unsigned edge_index(const unsigned x) {
  const unsigned y = ~((x >> 1) | x);
  const unsigned RTSR = ((x >> 1) & 1u) | ((x >> 2) & 2u) | ((x >> 3) & 4u) | ((x << 2) & 8u);
  const unsigned re = RTSR >> 1;
  const unsigned se = 4u | RTSR >> 2;
  const unsigned te = 8u | (RTSR & 3u);
  return ((0u - (y & 1u)) & re) | ((0u - ((y >> 2) & 1u)) & se) | ((0u - ((y >> 4) & 1u)) & te);
}
```
user: Please show me the C implementation that matches the assembly code listed below:

```asm
<edge_index>:
  endbr64
  mov    %edi,%eax
  mov    %edi,%ecx
  shr    %ecx
  mov    %ecx,%edx
  or     %edi,%edx
  not    %edx
  shr    $0x2,%edi
  and    $0x2,%edi
  and    $0x1,%ecx
  or     %ecx,%edi
  mov    %eax,%ecx
  shr    $0x3,%ecx
  and    $0x4,%ecx
  or     %ecx,%edi
  shl    $0x2,%eax
  and    $0x8,%eax
  or     %eax,%edi
  mov    %edx,%eax
  shl    $0x1d,%eax
  sar    $0x1f,%eax
  mov    %edi,%ecx
  shr    $0x2,%ecx
  or     $0x4,%ecx
  and    %ecx,%eax
  mov    %edx,%ecx
  shl    $0x1b,%ecx
  sar    $0x1f,%ecx
  mov    %edi,%esi
  and    $0x3,%esi
  or     $0x8,%esi
  and    %esi,%ecx
  or     %ecx,%eax
  and    $0x1,%edx
  neg    %edx
  shr    %edi
  and    %edi,%edx
  or     %edx,%eax
  ret
```

assistant: ```c
unsigned edge_index(const unsigned x) {
  const unsigned y = ~((x >> 1) | x);
  const unsigned RTSR = ((x >> 1) & 1u) | ((x >> 2) & 2u) | ((x >> 3) & 4u) | ((x << 2) & 8u);
  const unsigned re = RTSR >> 1;
  const unsigned se = 4u | RTSR >> 2;
  const unsigned te = 8u | (RTSR & 3u);
  return ((0u - (y & 1u)) & re) | ((0u - ((y >> 2) & 1u)) & se) | ((0u - ((y >> 4) & 1u)) & te);
}
```
user: 提供的汇编代码用C语言表示会是什么样子:

```asm
<edge_index>:
  endbr64
  mov    %edi,%ecx
  mov    %edi,%eax
  shr    %ecx
  mov    %ecx,%edx
  and    $0x1,%ecx
  or     %edi,%edx
  shr    $0x2,%edi
  and    $0x2,%edi
  not    %edx
  or     %ecx,%edi
  mov    %eax,%ecx
  shl    $0x2,%eax
  shr    $0x3,%ecx
  and    $0x8,%eax
  and    $0x4,%ecx
  or     %ecx,%edi
  or     %eax,%edi
  mov    %edx,%eax
  mov    %edi,%ecx
  shl    $0x1d,%eax
  mov    %edi,%esi
  shr    $0x2,%ecx
  sar    $0x1f,%eax
  and    $0x3,%esi
  or     $0x4,%ecx
  or     $0x8,%esi
  shr    %edi
  and    %ecx,%eax
  mov    %edx,%ecx
  and    $0x1,%edx
  shl    $0x1b,%ecx
  neg    %edx
  sar    $0x1f,%ecx
  and    %edi,%edx
  and    %esi,%ecx
  or     %ecx,%eax
  or     %edx,%eax
  ret
```

assistant: ```c
unsigned edge_index(const unsigned x) {
  const unsigned y = ~((x >> 1) | x);
  const unsigned RTSR = ((x >> 1) & 1u) | ((x >> 2) & 2u) | ((x >> 3) & 4u) | ((x << 2) & 8u);
  const unsigned re = RTSR >> 1;
  const unsigned se = 4u | RTSR >> 2;
  const unsigned te = 8u | (RTSR & 3u);
  return ((0u - (y & 1u)) & re) | ((0u - ((y >> 2) & 1u)) & se) | ((0u - ((y >> 4) & 1u)) & te);
}
```
user: What would the C source look like for the assembly code provided here:

```asm
<edge_index>:
  endbr64
  mov    %edi,%ecx
  mov    %edi,%eax
  shr    %ecx
  mov    %ecx,%edx
  and    $0x1,%ecx
  or     %edi,%edx
  shr    $0x2,%edi
  and    $0x2,%edi
  not    %edx
  or     %ecx,%edi
  mov    %eax,%ecx
  shl    $0x2,%eax
  shr    $0x3,%ecx
  and    $0x8,%eax
  and    $0x4,%ecx
  or     %ecx,%edi
  or     %eax,%edi
  mov    %edx,%eax
  mov    %edi,%ecx
  shl    $0x1d,%eax
  mov    %edi,%esi
  shr    $0x2,%ecx
  sar    $0x1f,%eax
  and    $0x3,%esi
  or     $0x4,%ecx
  or     $0x8,%esi
  shr    %edi
  and    %ecx,%eax
  mov    %edx,%ecx
  and    $0x1,%edx
  shl    $0x1b,%ecx
  neg    %edx
  sar    $0x1f,%ecx
  and    %edi,%edx
  and    %esi,%ecx
  or     %ecx,%eax
  or     %edx,%eax
  ret
```

assistant: ```c
unsigned edge_index(const unsigned x) {
  const unsigned y = ~((x >> 1) | x);
  const unsigned RTSR = ((x >> 1) & 1u) | ((x >> 2) & 2u) | ((x >> 3) & 4u) | ((x << 2) & 8u);
  const unsigned re = RTSR >> 1;
  const unsigned se = 4u | RTSR >> 2;
  const unsigned te = 8u | (RTSR & 3u);
  return ((0u - (y & 1u)) & re) | ((0u - ((y >> 2) & 1u)) & se) | ((0u - ((y >> 4) & 1u)) & te);
}
```
user: 请从给定的汇编指令推导出C源代码：

```asm
<measure_tsc_overhead>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x30,%rsp
  movq   $0xfffffffffffffffe,-0x8(%rbp)
  movl   $0x0,-0x24(%rbp)
  jmp    L32
L29:
  mov    $0x0,%eax
  call   <read_tsc_before_std@plt>
  mov    %rax,-0x20(%rbp)
  mov    $0x0,%eax
  call   <read_tsc_after_std@plt>
  mov    %rax,-0x18(%rbp)
  mov    -0x18(%rbp),%rdx
  mov    -0x20(%rbp),%rax
  cmp    %rax,%rdx
  jle    L32
  mov    -0x18(%rbp),%rax
  mov    -0x20(%rbp),%rdx
  sub    %rdx,%rax
  mov    %rax,-0x10(%rbp)
  mov    -0x10(%rbp),%rdx
  mov    -0x8(%rbp),%rax
  cmp    %rax,%rdx
  jge    L7
  mov    -0x10(%rbp),%rax
  mov    %rax,-0x8(%rbp)
L7:
  addl   $0x1,-0x24(%rbp)
L32:
  cmpl   $0x63,-0x24(%rbp)
  jle    L29
  mov    -0x8(%rbp),%rax
  leave
  ret
```

assistant: ```c
uint64_t measure_tsc_overhead() {
  enum { NMEASURES = 100 };
  volatile uint64_t t0, t1, ticks, minticks = (uint64_t)~0x1;
  for (int i = 0; i < NMEASURES;) {
    t0 = read_tsc_before_std();
    t1 = read_tsc_after_std();
    if (t1 > t0) {
      ticks = t1 - t0;
      if (ticks < minticks)
        minticks = ticks;
      i++;
    }
  }
  return minticks;
}
```
user: Demonstrate the C code that generates the assembly output below:

```asm
<measure_tsc_overhead>:
  endbr64
  push   %rbx
  sub    $0x20,%rsp
  movq   $0xfffffffffffffffe,0x18(%rsp)
  mov    $0x0,%ebx
L2:
  cmp    $0x64,%ebx
  je     L38
  mov    $0x0,%eax
  call   <read_tsc_before_std@plt>
  mov    %rax,(%rsp)
  mov    $0x0,%eax
  call   <read_tsc_after_std@plt>
  mov    %rax,0x8(%rsp)
  mov    0x8(%rsp),%rdx
  mov    (%rsp),%rax
  cmp    %rax,%rdx
  jle    L2
  mov    0x8(%rsp),%rax
  mov    (%rsp),%rdx
  sub    %rdx,%rax
  mov    %rax,0x10(%rsp)
  mov    0x10(%rsp),%rdx
  mov    0x18(%rsp),%rax
  cmp    %rax,%rdx
  jge    L15
  mov    0x10(%rsp),%rax
  mov    %rax,0x18(%rsp)
L15:
  add    $0x1,%ebx
  jmp    L2
L38:
  mov    0x18(%rsp),%rax
  add    $0x20,%rsp
  pop    %rbx
  ret
```

assistant: ```c
uint64_t measure_tsc_overhead() {
  enum { NMEASURES = 100 };
  volatile uint64_t t0, t1, ticks, minticks = (uint64_t)~0x1;
  for (int i = 0; i < NMEASURES;) {
    t0 = read_tsc_before_std();
    t1 = read_tsc_after_std();
    if (t1 > t0) {
      ticks = t1 - t0;
      if (ticks < minticks)
        minticks = ticks;
      i++;
    }
  }
  return minticks;
}
```