ylfeng/ReF-Decompile-dataset huggingface dataset:
user: Please show me the C implementation that matches the assembly code listed below:

```asm
<reverseString>:
  endbr64
  push   %rbp
  push   %rbx
  mov    %rdi,%rbx
  sub    $0x8,%rsp
  call   <strlen@plt>
  mov    %rax,%rbp
  lea    0x1(%rax),%edi
  call   <malloc@plt>
  lea    (%rbx,%rbp,1),%rdx
  movb   $0x0,(%rax,%rbp,1)
  lea    (%rax,%rdx,1),%rdi
  test   %rbp,%rbp
  je     L16
  xchg   %ax,%ax
L1:
  movzbl -0x1(%rdx),%esi
  mov    %rdi,%rcx
  sub    %rdx,%rcx
  sub    $0x1,%rdx
  mov    %sil,(%rcx)
  cmp    %rbx,%rdx
  jne    L1
L16:
  add    $0x8,%rsp
  pop    %rbx
  pop    %rbp
  ret
```

assistant: ```c
char *reverseString(char *s) {
  size_t s_len = strlen(s);
  size_t i = 0;
  char *result = (char *)malloc(sizeof(char) * (s_len + 1));
  result[s_len] = 0;
  for (; i < s_len; ++i) {
    result[i] = s[s_len - 1 - i];
  }
  return result;
}
```
user: 请将这段汇编代码片段转换成等效的C代码：

```asm
<reverseString>:
  endbr64
  push   %rbp
  push   %rbx
  mov    %rdi,%rbx
  sub    $0x8,%rsp
  call   <strlen@plt>
  mov    %rax,%rbp
  lea    0x1(%rax),%edi
  call   <malloc@plt>
  lea    (%rbx,%rbp,1),%rdx
  movb   $0x0,(%rax,%rbp,1)
  lea    (%rax,%rdx,1),%rdi
  test   %rbp,%rbp
  je     L7
  xchg   %ax,%ax
L15:
  movzbl -0x1(%rdx),%esi
  mov    %rdi,%rcx
  sub    %rdx,%rcx
  sub    $0x1,%rdx
  mov    %sil,(%rcx)
  cmp    %rbx,%rdx
  jne    L15
L7:
  add    $0x8,%rsp
  pop    %rbx
  pop    %rbp
  ret
```

assistant: ```c
char *reverseString(char *s) {
  size_t s_len = strlen(s);
  size_t i = 0;
  char *result = (char *)malloc(sizeof(char) * (s_len + 1));
  result[s_len] = 0;
  for (; i < s_len; ++i) {
    result[i] = s[s_len - 1 - i];
  }
  return result;
}
```
user: Demonstrate the C code that generates the assembly output below:

```asm
<yy_1_LinkOptionNameValue>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    %rdi,-0x8(%rbp)
  mov    %esi,-0xc(%rbp)
  nop
  pop    %rbp
  ret
```

assistant: ```c
void yy_1_LinkOptionNameValue(char *yytext, int yyleng) {
  ;
  ;
}
```
user: 请将以下的汇编代码转换成C语言代码：

```asm
<yy_1_LinkOptionNameValue>:
  endbr64
  ret
```

assistant: ```c
void yy_1_LinkOptionNameValue(char *yytext, int yyleng) {
  ;
  ;
}
```
user: 请从给定的汇编指令推导出C源代码:

```asm
<yy_1_LinkOptionNameValue>:
  endbr64
  ret
```

assistant: ```c
void yy_1_LinkOptionNameValue(char *yytext, int yyleng) {
  ;
  ;
}
```
user: Demonstrate the C code that generates the assembly output below:

```asm
<yy_1_LinkOptionNameValue>:
  endbr64
  ret
```

assistant: ```c
void yy_1_LinkOptionNameValue(char *yytext, int yyleng) {
  ;
  ;
}
```
user: Please show me the C implementation that matches the assembly code listed below:

```asm
<prime_factors>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x30,%rsp
  mov    %rdi,-0x28(%rbp)
  mov    $0x8,%edi
  call   <malloc@plt>
  mov    %rax,-0x10(%rbp)
  movl   $0x0,-0x14(%rbp)
  jmp    L36
L19:
  mov    -0x28(%rbp),%rax
  mov    %rax,%rdi
  call   <least_divisor@plt>
  mov    %rax,-0x8(%rbp)
  mov    -0x14(%rbp),%eax
  add    $0x2,%eax
  cltq
  shl    $0x3,%eax
  mov    %eax,%edx
  mov    -0x10(%rbp),%rax
  mov    %edx,%esi
  mov    %rax,%rdi
  call   <realloc@plt>
  mov    %rax,-0x10(%rbp)
  addl   $0x1,-0x14(%rbp)
  mov    -0x14(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x10(%rbp),%rax
  add    %rax,%rdx
  mov    -0x8(%rbp),%rax
  mov    %rax,(%rdx)
  mov    -0x8(%rbp),%rax
  cmp    -0x28(%rbp),%rax
  je     L21
  jmp    L44
L7:
  mov    -0x28(%rbp),%rax
  cqto
  idivq  -0x8(%rbp)
  mov    %rax,-0x28(%rbp)
L44:
  mov    -0x28(%rbp),%rax
  cqto
  idivq  -0x8(%rbp)
  mov    %rdx,%rax
  test   %rax,%rax
  je     L7
L36:
  cmpq   $0x1,-0x28(%rbp)
  jne    L19
  jmp    L12
L21:
  nop
L12:
  mov    -0x14(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x10(%rbp),%rax
  mov    %rdx,(%rax)
  mov    -0x10(%rbp),%rax
  leave
  ret
```

assistant: ```c
long *prime_factors(long n) {
  long *rtrn_list = malloc(sizeof(long));
  int rtrn_list_length = 0;
  long least_div;
  while (n != 1) {
    least_div = least_divisor(n);
    rtrn_list = realloc(rtrn_list, (rtrn_list_length + 2) * sizeof(long));
    rtrn_list[++rtrn_list_length] = least_div;
    if (least_div == n) {
      break;
    }
    while (n % least_div == 0) {
      n /= least_div;
    }
  }
  rtrn_list[0] = rtrn_list_length;
  return rtrn_list;
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<prime_factors>:
  endbr64
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  mov    %rdi,%rbx
  mov    $0x8,%edi
  call   <malloc@plt>
  mov    %rax,%r12
  cmp    $0x1,%rbx
  je     L63
  mov    $0x8,%r13d
  mov    $0x0,%r14d
  jmp    L64
L16:
  add    $0x8,%r13
  cmp    $0x1,%rbx
  je     L10
L64:
  mov    %rbx,%rdi
  call   <least_divisor@plt>
  mov    %rax,%rbp
  lea    0x8(%r13),%esi
  mov    %r12,%rdi
  call   <realloc@plt>
  mov    %rax,%r12
  add    $0x1,%r14d
  mov    %rbp,(%rax,%r13,1)
  cmp    %rbx,%rbp
  je     L10
  mov    %rbx,%rax
  cqto
  idiv   %rbp
  test   %rdx,%rdx
  jne    L16
L27:
  mov    %rbx,%rax
  cqto
  idiv   %rbp
  mov    %rax,%rbx
  cqto
  idiv   %rbp
  test   %rdx,%rdx
  je     L27
  jmp    L16
L63:
  mov    $0x0,%r14d
L10:
  movslq %r14d,%r14
  mov    %r14,(%r12)
  mov    %r12,%rax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  ret
```

assistant: ```c
long *prime_factors(long n) {
  long *rtrn_list = malloc(sizeof(long));
  int rtrn_list_length = 0;
  long least_div;
  while (n != 1) {
    least_div = least_divisor(n);
    rtrn_list = realloc(rtrn_list, (rtrn_list_length + 2) * sizeof(long));
    rtrn_list[++rtrn_list_length] = least_div;
    if (least_div == n) {
      break;
    }
    while (n % least_div == 0) {
      n /= least_div;
    }
  }
  rtrn_list[0] = rtrn_list_length;
  return rtrn_list;
}
```
user: What would the C source look like for the assembly code provided here:

```asm
<prime_factors>:
  endbr64
  push   %r14
  push   %r13
  push   %r12
  mov    %rdi,%r12
  mov    $0x8,%edi
  push   %rbp
  push   %rbx
  call   <malloc@plt>
  mov    %rax,%r14
  cmp    $0x1,%r12
  je     L14
  mov    $0x8,%ebp
  xor    %r13d,%r13d
  xchg   %ax,%ax
L2:
  mov    %r12,%rdi
  add    $0x1,%r13d
  call   <least_divisor@plt>
  mov    %r14,%rdi
  lea    0x8(%rbp),%esi
  mov    %rax,%rbx
  call   <realloc@plt>
  mov    %rbx,(%rax,%rbp,1)
  mov    %rax,%r14
  cmp    %r12,%rbx
  je     L57
  mov    %r12,%rax
  cqto
  idiv   %rbx
  test   %rdx,%rdx
  jne    L13
  nopl   0x0(%rax,%rax,1)
L28:
  mov    %r12,%rax
  cqto
  idiv   %rbx
  cqto
  mov    %rax,%r12
  idiv   %rbx
  test   %rdx,%rdx
  je     L28
  add    $0x8,%rbp
  cmp    $0x1,%r12
  jne    L2
L57:
  movslq %r13d,%r13
L16:
  mov    %r13,(%r14)
  mov    %r14,%rax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  ret
  nopl   0x0(%rax)
L13:
  add    $0x8,%rbp
  jmp    L2
L14:
  xor    %r13d,%r13d
  jmp    L16
```

assistant: ```c
long *prime_factors(long n) {
  long *rtrn_list = malloc(sizeof(long));
  int rtrn_list_length = 0;
  long least_div;
  while (n != 1) {
    least_div = least_divisor(n);
    rtrn_list = realloc(rtrn_list, (rtrn_list_length + 2) * sizeof(long));
    rtrn_list[++rtrn_list_length] = least_div;
    if (least_div == n) {
      break;
    }
    while (n % least_div == 0) {
      n /= least_div;
    }
  }
  rtrn_list[0] = rtrn_list_length;
  return rtrn_list;
}
```
user: 请从给定的汇编指令推导出C源代码:

```asm
<prime_factors>:
  endbr64
  push   %r14
  push   %r13
  push   %r12
  mov    %rdi,%r12
  mov    $0x8,%edi
  push   %rbp
  push   %rbx
  call   <malloc@plt>
  mov    %rax,%r14
  cmp    $0x1,%r12
  je     L35
  mov    $0x8,%ebp
  xor    %r13d,%r13d
  xchg   %ax,%ax
L47:
  mov    %r12,%rdi
  add    $0x1,%r13d
  call   <least_divisor@plt>
  mov    %r14,%rdi
  lea    0x8(%rbp),%esi
  mov    %rax,%rbx
  call   <realloc@plt>
  mov    %rbx,(%rax,%rbp,1)
  mov    %rax,%r14
  cmp    %r12,%rbx
  je     L32
  mov    %r12,%rax
  cqto
  idiv   %rbx
  test   %rdx,%rdx
  jne    L59
  nopl   0x0(%rax,%rax,1)
L42:
  mov    %r12,%rax
  cqto
  idiv   %rbx
  cqto
  mov    %rax,%r12
  idiv   %rbx
  test   %rdx,%rdx
  je     L42
  add    $0x8,%rbp
  cmp    $0x1,%r12
  jne    L47
L32:
  movslq %r13d,%r13
L33:
  mov    %r13,(%r14)
  mov    %r14,%rax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  ret
  nopl   0x0(%rax)
L59:
  add    $0x8,%rbp
  jmp    L47
L35:
  xor    %r13d,%r13d
  jmp    L33
```

assistant: ```c
long *prime_factors(long n) {
  long *rtrn_list = malloc(sizeof(long));
  int rtrn_list_length = 0;
  long least_div;
  while (n != 1) {
    least_div = least_divisor(n);
    rtrn_list = realloc(rtrn_list, (rtrn_list_length + 2) * sizeof(long));
    rtrn_list[++rtrn_list_length] = least_div;
    if (least_div == n) {
      break;
    }
    while (n % least_div == 0) {
      n /= least_div;
    }
  }
  rtrn_list[0] = rtrn_list_length;
  return rtrn_list;
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<pdms>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x30,%rsp
  movsd  %xmm0,-0x28(%rbp)
  movl   $0x2b,-0x14(%rbp)
  pxor   %xmm0,%xmm0
  comisd -0x28(%rbp),%xmm0
  jbe    L9
  movl   $0x2d,-0x14(%rbp)
  movsd  -0x28(%rbp),%xmm0
  movq   D17(%rip),%xmm1
  xorpd  %xmm1,%xmm0
  movsd  %xmm0,-0x28(%rbp)
L9:
  movsd  -0x28(%rbp),%xmm0
  cvttsd2si %xmm0,%eax
  mov    %eax,-0x10(%rbp)
  pxor   %xmm2,%xmm2
  cvtsi2sdl -0x10(%rbp),%xmm2
  movsd  -0x28(%rbp),%xmm0
  movapd %xmm0,%xmm1
  subsd  %xmm2,%xmm1
  movsd  D8(%rip),%xmm0
  mulsd  %xmm1,%xmm0
  cvttsd2si %xmm0,%eax
  mov    %eax,-0xc(%rbp)
  pxor   %xmm2,%xmm2
  cvtsi2sdl -0x10(%rbp),%xmm2
  movsd  -0x28(%rbp),%xmm0
  movapd %xmm0,%xmm1
  subsd  %xmm2,%xmm1
  movsd  D15(%rip),%xmm0
  mulsd  %xmm1,%xmm0
  mov    -0xc(%rbp),%eax
  imul   $0x3c,%eax,%eax
  pxor   %xmm1,%xmm1
  cvtsi2sd %eax,%xmm1
  subsd  %xmm1,%xmm0
  movsd  %xmm0,-0x8(%rbp)
  mov    -0x8(%rbp),%rsi
  mov    -0xc(%rbp),%ecx
  mov    -0x10(%rbp),%edx
  mov    -0x14(%rbp),%eax
  movq   %rsi,%xmm0
  mov    %eax,%esi
  lea    D35(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
  nop
  leave
  ret
```

tool_calls: name: read_data
arguments: data_label: D17
datatype: byte[8]
name: read_data
arguments: data_label: D8
datatype: byte[8]
name: read_data
arguments: data_label: D15
datatype: byte[8]
name: read_data
arguments: data_label: D35
datatype: string

tool: {"D17": [0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80]}

tool: {"D8": [0x00,0x00,0x00,0x00,0x00,0x00,0x4e,0x40]}

tool: {"D15": [0x00,0x00,0x00,0x00,0x00,0x20,0xac,0x40]}

tool: D35: %c%.2d %.2d %6.3f

assistant: ```c
void pdms(double deg) {
  int sign = '+';
  int g, m;
  double s;
  if (deg < 0) {
    sign = '-';
    deg = -deg;
  }
  g = (int)(deg);
  m = (int)((deg - g) * 60);
  s = ((deg - g) * 3600 - m * 60);
  printf("%c%.2d %.2d %6.3f", sign, g, m, s);
}
```
user: 提供的汇编代码用C语言表示会是什么样子：

```asm
<pdms>:
  endbr64
  sub    $0x8,%rsp
  pxor   %xmm1,%xmm1
  mov    $0x2b,%esi
  comisd %xmm0,%xmm1
  ja     L17
L11:
  cvttsd2si %xmm0,%edx
  pxor   %xmm1,%xmm1
  cvtsi2sd %edx,%xmm1
  subsd  %xmm1,%xmm0
  movapd %xmm0,%xmm1
  mulsd  D21(%rip),%xmm1
  cvttsd2si %xmm1,%ecx
  mulsd  D33(%rip),%xmm0
  imul   $0x3c,%ecx,%eax
  pxor   %xmm1,%xmm1
  cvtsi2sd %eax,%xmm1
  subsd  %xmm1,%xmm0
  lea    D2(%rip),%rdi
  call   <printf@plt>
  add    $0x8,%rsp
  ret
L17:
  xorpd  D31(%rip),%xmm0
  mov    $0x2d,%esi
  jmp    L11
```

tool_calls: name: disassemble_data
arguments: label: D21
type_guessed: byte[8]
name: disassemble_data
arguments: label: D33
type_guessed: byte[8]
name: disassemble_data
arguments: label: D2
type_guessed: string
name: disassemble_data
arguments: label: D31
type_guessed: byte[16]

tool: {"D21": [0x00,0x00,0x00,0x00,0x00,0x00,0x4e,0x40]}

tool: {"D33": [0x00,0x00,0x00,0x00,0x00,0x20,0xac,0x40]}

tool: D2: %c%.2d %.2d %6.3f

tool: {"D31": [0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00]}

assistant: ```c
void pdms(double deg) {
  int sign = '+';
  int g, m;
  double s;
  if (deg < 0) {
    sign = '-';
    deg = -deg;
  }
  g = (int)(deg);
  m = (int)((deg - g) * 60);
  s = ((deg - g) * 3600 - m * 60);
  printf("%c%.2d %.2d %6.3f", sign, g, m, s);
}
```
user: 提供的汇编代码用C语言表示会是什么样子:

```asm
<pdms>:
  endbr64
  pxor   %xmm1,%xmm1
  mov    $0x2b,%esi
  comisd %xmm0,%xmm1
  jbe    L7
  xorpd  D6(%rip),%xmm0
  mov    $0x2d,%esi
L7:
  cvttsd2si %xmm0,%edx
  pxor   %xmm1,%xmm1
  lea    D21(%rip),%rdi
  cvtsi2sd %edx,%xmm1
  subsd  %xmm1,%xmm0
  movsd  D23(%rip),%xmm1
  mulsd  %xmm0,%xmm1
  mulsd  D12(%rip),%xmm0
  cvttsd2si %xmm1,%ecx
  pxor   %xmm1,%xmm1
  imul   $0x3c,%ecx,%eax
  cvtsi2sd %eax,%xmm1
  subsd  %xmm1,%xmm0
  jmp    1050 <printf@plt>
```

tool_calls: name: parse_data
arguments: data_label: D6
type_guessed: byte[16]
name: parse_data
arguments: data_label: D21
type_guessed: string
name: parse_data
arguments: data_label: D23
type_guessed: byte[8]
name: parse_data
arguments: data_label: D12
type_guessed: byte[8]

tool: {"D6": [0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00]}

tool: D21: %c%.2d %.2d %6.3f

tool: {"D23": [0x00,0x00,0x00,0x00,0x00,0x00,0x4e,0x40]}

tool: {"D12": [0x00,0x00,0x00,0x00,0x00,0x20,0xac,0x40]}

assistant: ```c
void pdms(double deg) {
  int sign = '+';
  int g, m;
  double s;
  if (deg < 0) {
    sign = '-';
    deg = -deg;
  }
  g = (int)(deg);
  m = (int)((deg - g) * 60);
  s = ((deg - g) * 3600 - m * 60);
  printf("%c%.2d %.2d %6.3f", sign, g, m, s);
}
```
user: 请从给定的汇编指令推导出C源代码：

```asm
<pdms>:
  endbr64
  pxor   %xmm1,%xmm1
  mov    $0x2b,%esi
  comisd %xmm0,%xmm1
  jbe    L5
  xorpd  D17(%rip),%xmm0
  mov    $0x2d,%esi
L5:
  cvttsd2si %xmm0,%edx
  pxor   %xmm1,%xmm1
  lea    D38(%rip),%rdi
  cvtsi2sd %edx,%xmm1
  subsd  %xmm1,%xmm0
  movsd  D7(%rip),%xmm1
  mulsd  %xmm0,%xmm1
  mulsd  D11(%rip),%xmm0
  cvttsd2si %xmm1,%ecx
  pxor   %xmm1,%xmm1
  imul   $0x3c,%ecx,%eax
  cvtsi2sd %eax,%xmm1
  subsd  %xmm1,%xmm0
  jmp    1050 <printf@plt>
```

tool_calls: name: unpack_data
arguments: tag: D17
type_infered: byte[16]
name: unpack_data
arguments: tag: D38
type_infered: string
name: unpack_data
arguments: tag: D7
type_infered: byte[8]
name: unpack_data
arguments: tag: D11
type_infered: byte[8]

tool: {"D17": [0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00]}

tool: D38: %c%.2d %.2d %6.3f

tool: {"D7": [0x00,0x00,0x00,0x00,0x00,0x00,0x4e,0x40]}

tool: {"D11": [0x00,0x00,0x00,0x00,0x00,0x20,0xac,0x40]}

assistant: ```c
void pdms(double deg) {
  int sign = '+';
  int g, m;
  double s;
  if (deg < 0) {
    sign = '-';
    deg = -deg;
  }
  g = (int)(deg);
  m = (int)((deg - g) * 60);
  s = ((deg - g) * 3600 - m * 60);
  printf("%c%.2d %.2d %6.3f", sign, g, m, s);
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<hex2bin>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    %rdi,-0x28(%rbp)
  mov    %rsi,-0x30(%rbp)
  mov    %rdx,-0x38(%rbp)
  mov    %rcx,-0x40(%rbp)
  movq   $0x0,-0x10(%rbp)
  movq   $0x0,-0x8(%rbp)
  movq   $0x0,-0x18(%rbp)
  jmp    L76
L67:
  mov    -0x28(%rbp),%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  mov    %al,-0x19(%rbp)
  cmpb   $0x2f,-0x19(%rbp)
  jle    L143
  cmpb   $0x39,-0x19(%rbp)
  jg     L143
  movzbl -0x19(%rbp),%eax
  sub    $0x30,%eax
  mov    %al,-0x19(%rbp)
  jmp    L51
L143:
  cmpb   $0x60,-0x19(%rbp)
  jle    L4
  cmpb   $0x66,-0x19(%rbp)
  jg     L4
  movzbl -0x19(%rbp),%eax
  sub    $0x57,%eax
  mov    %al,-0x19(%rbp)
  jmp    L51
L4:
  cmpb   $0x40,-0x19(%rbp)
  jle    L40
  cmpb   $0x46,-0x19(%rbp)
  jg     L40
  movzbl -0x19(%rbp),%eax
  sub    $0x37,%eax
  mov    %al,-0x19(%rbp)
L51:
  mov    -0x8(%rbp),%rax
  lea    0x1(%rax),%rdx
  mov    %rdx,-0x8(%rbp)
  and    $0x1,%eax
  test   %rax,%rax
  je     L108
  mov    -0x10(%rbp),%rax
  lea    0x1(%rax),%rdx
  mov    %rdx,-0x10(%rbp)
  mov    -0x38(%rbp),%rdx
  add    %rax,%rdx
  movzbl (%rdx),%edx
  mov    -0x38(%rbp),%rcx
  add    %rax,%rcx
  mov    %edx,%eax
  or     -0x19(%rbp),%al
  mov    %al,(%rcx)
  jmp    L24
L108:
  movsbl -0x19(%rbp),%eax
  shl    $0x4,%eax
  mov    %eax,%ecx
  mov    -0x38(%rbp),%rdx
  mov    -0x10(%rbp),%rax
  add    %rdx,%rax
  mov    %ecx,%edx
  mov    %dl,(%rax)
L24:
  mov    -0x10(%rbp),%rax
  cmp    -0x40(%rbp),%rax
  jae    L54
  jmp    L78
L40:
  nop
L78:
  addq   $0x1,-0x18(%rbp)
L76:
  mov    -0x18(%rbp),%rax
  cmp    -0x30(%rbp),%rax
  jb     L67
  jmp    L42
L54:
  nop
L42:
  mov    -0x10(%rbp),%rax
  pop    %rbp
  ret
```

assistant: ```c
uint32_t hex2bin(char *hexstr, uint32_t hexlen, uint8_t *result, uint32_t reslen) {
  uint32_t i, j = 0, k = 0;
  for (i = 0; i < hexlen; i++) {
    uint8_t c = (uint8_t)hexstr[i];
    if (c >= '0' && c <= '9')
      c -= '0';
    else if (c >= 'a' && c <= 'f')
      c = (uint8_t)((c - 'a') + 10);
    else if (c >= 'A' && c <= 'F')
      c = (uint8_t)((c - 'A') + 10);
    else
      continue;
    if (k++ & 0x01)
      result[j++] |= c;
    else
      result[j] = c << 4;
    if (j >= reslen)
      break;
  }
  return j;
}
```
user: Please show me the C implementation that matches the assembly code listed below:

```asm
<hex2bin>:
  endbr64
  mov    %rdx,%r9
  mov    %rcx,%r10
  test   %rsi,%rsi
  je     L33
  mov    %rdi,%rcx
  add    %rsi,%rdi
  mov    $0x0,%r8d
  mov    $0x0,%edx
  jmp    L28
L78:
  lea    -0x41(%rsi),%eax
  cmp    $0x5,%al
  ja     L56
  lea    -0x37(%rsi),%eax
L63:
  lea    0x1(%r8),%rsi
  test   $0x1,%r8b
  je     L98
  or     %al,(%r9,%rdx,1)
  lea    0x1(%rdx),%rdx
L87:
  cmp    %r10,%rdx
  jae    L25
  mov    %rsi,%r8
L56:
  add    $0x1,%rcx
  cmp    %rdi,%rcx
  je     L25
L28:
  movzbl (%rcx),%esi
  lea    -0x30(%rsi),%eax
  cmp    $0x9,%al
  jbe    L63
  lea    -0x61(%rsi),%eax
  cmp    $0x5,%al
  ja     L78
  lea    -0x57(%rsi),%eax
  jmp    L63
L98:
  movsbl %al,%eax
  shl    $0x4,%eax
  mov    %al,(%r9,%rdx,1)
  jmp    L87
L33:
  mov    %rsi,%rdx
L25:
  mov    %rdx,%rax
  ret
```

assistant: ```c
uint32_t hex2bin(char *hexstr, uint32_t hexlen, uint8_t *result, uint32_t reslen) {
  uint32_t i, j = 0, k = 0;
  for (i = 0; i < hexlen; i++) {
    uint8_t c = (uint8_t)hexstr[i];
    if (c >= '0' && c <= '9')
      c -= '0';
    else if (c >= 'a' && c <= 'f')
      c = (uint8_t)((c - 'a') + 10);
    else if (c >= 'A' && c <= 'F')
      c = (uint8_t)((c - 'A') + 10);
    else
      continue;
    if (k++ & 0x01)
      result[j++] |= c;
    else
      result[j] = c << 4;
    if (j >= reslen)
      break;
  }
  return j;
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<hex2bin>:
  endbr64
  test   %rsi,%rsi
  je     L81
  push   %rbx
  mov    %rdx,%r11
  mov    %rcx,%rbx
  add    %rdi,%rsi
  xor    %ecx,%ecx
  xor    %r8d,%r8d
  jmp    L63
  nopw   0x0(%rax,%rax,1)
L1:
  lea    -0x57(%rdx),%eax
L2:
  mov    %eax,%r9d
  lea    0x1(%rcx),%r10
  lea    (%r11,%r8,1),%rdx
  shl    $0x4,%r9d
  and    $0x1,%ecx
  je     L79
  or     (%rdx),%al
  add    $0x1,%r8
  mov    %eax,%r9d
L79:
  mov    %r9b,(%rdx)
  cmp    %rbx,%r8
  jae    L0
  mov    %r10,%rcx
L12:
  add    $0x1,%rdi
  cmp    %rdi,%rsi
  je     L0
L63:
  movzbl (%rdi),%edx
  lea    -0x30(%rdx),%eax
  cmp    $0x9,%al
  jbe    L2
  lea    -0x61(%rdx),%eax
  cmp    $0x5,%al
  jbe    L1
  lea    -0x41(%rdx),%eax
  cmp    $0x5,%al
  ja     L12
  lea    -0x37(%rdx),%eax
  jmp    L2
  nopl   0x0(%rax)
L0:
  mov    %r8,%rax
  pop    %rbx
  ret
L81:
  xor    %eax,%eax
  ret
```

assistant: ```c
uint32_t hex2bin(char *hexstr, uint32_t hexlen, uint8_t *result, uint32_t reslen) {
  uint32_t i, j = 0, k = 0;
  for (i = 0; i < hexlen; i++) {
    uint8_t c = (uint8_t)hexstr[i];
    if (c >= '0' && c <= '9')
      c -= '0';
    else if (c >= 'a' && c <= 'f')
      c = (uint8_t)((c - 'a') + 10);
    else if (c >= 'A' && c <= 'F')
      c = (uint8_t)((c - 'A') + 10);
    else
      continue;
    if (k++ & 0x01)
      result[j++] |= c;
    else
      result[j] = c << 4;
    if (j >= reslen)
      break;
  }
  return j;
}
```
user: 请将以下的汇编代码转换成C语言代码：

```asm
<hex2bin>:
  endbr64
  test   %rsi,%rsi
  je     L81
  push   %rbx
  mov    %rdx,%r11
  mov    %rcx,%rbx
  add    %rdi,%rsi
  xor    %ecx,%ecx
  xor    %r8d,%r8d
  jmp    L0
  nopw   0x0(%rax,%rax,1)
L86:
  lea    -0x57(%rdx),%eax
L50:
  mov    %eax,%r9d
  lea    0x1(%rcx),%r10
  lea    (%r11,%r8,1),%rdx
  shl    $0x4,%r9d
  and    $0x1,%ecx
  je     L55
  or     (%rdx),%al
  add    $0x1,%r8
  mov    %eax,%r9d
L55:
  mov    %r9b,(%rdx)
  cmp    %rbx,%r8
  jae    L32
  mov    %r10,%rcx
L80:
  add    $0x1,%rdi
  cmp    %rsi,%rdi
  je     L32
L0:
  movzbl (%rdi),%edx
  lea    -0x30(%rdx),%eax
  cmp    $0x9,%al
  jbe    L50
  lea    -0x61(%rdx),%eax
  cmp    $0x5,%al
  jbe    L86
  lea    -0x41(%rdx),%eax
  cmp    $0x5,%al
  ja     L80
  lea    -0x37(%rdx),%eax
  jmp    L50
  nopl   0x0(%rax)
L32:
  mov    %r8,%rax
  pop    %rbx
  ret
L81:
  xor    %eax,%eax
  ret
```

assistant: ```c
uint32_t hex2bin(char *hexstr, uint32_t hexlen, uint8_t *result, uint32_t reslen) {
  uint32_t i, j = 0, k = 0;
  for (i = 0; i < hexlen; i++) {
    uint8_t c = (uint8_t)hexstr[i];
    if (c >= '0' && c <= '9')
      c -= '0';
    else if (c >= 'a' && c <= 'f')
      c = (uint8_t)((c - 'a') + 10);
    else if (c >= 'A' && c <= 'F')
      c = (uint8_t)((c - 'A') + 10);
    else
      continue;
    if (k++ & 0x01)
      result[j++] |= c;
    else
      result[j] = c << 4;
    if (j >= reslen)
      break;
  }
  return j;
}
```
user: What is the c source code of the assembly code below:

```asm
<video_stream_info>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbx
  sub    $0x38,%rsp
  mov    %rdi,-0x58(%rbp)
  mov    %esi,-0x5c(%rbp)
  mov    %fs:0x28,%rax
  mov    %rax,-0x38(%rbp)
  xor    %eax,%eax
  mov    %rsp,%rax
  mov    %rax,%rbx
  mov    -0x58(%rbp),%rax
  mov    %rax,%rdi
  call   <ftell@plt>
  mov    %eax,-0x4c(%rbp)
  mov    -0x5c(%rbp),%eax
  sub    $0x8,%eax
  movslq %eax,%rdx
  sub    $0x1,%rdx
  mov    %rdx,-0x48(%rbp)
  movslq %eax,%rdx
  mov    %rdx,%r14
  mov    $0x0,%r15d
  movslq %eax,%rdx
  mov    %rdx,%r12
  mov    $0x0,%r13d
  cltq
  mov    $0x10,%edx
  sub    $0x1,%rdx
  add    %rdx,%rax
  mov    $0x10,%esi
  mov    $0x0,%edx
  div    %rsi
  imul   $0x10,%rax,%rax
  mov    %rax,%rcx
  and    $0xfffffffffffff000,%rcx
  mov    %rsp,%rdx
  sub    %rcx,%rdx
L17:
  cmp    %rdx,%rsp
  je     L5
  sub    $0x1000,%rsp
  orq    $0x0,0xff8(%rsp)
  jmp    L17
L5:
  mov    %rax,%rdx
  and    $0xfff,%edx
  sub    %rdx,%rsp
  mov    %rax,%rdx
  and    $0xfff,%edx
  test   %rdx,%rdx
  je     L6
  and    $0xfff,%eax
  sub    $0x8,%rax
  add    %rsp,%rax
  orq    $0x0,(%rax)
L6:
  mov    %rsp,%rax
  add    $0x0,%rax
  mov    %rax,-0x40(%rbp)
  subl   $0x8,-0x5c(%rbp)
  movl   $0x0,-0x50(%rbp)
  jmp    L34
L56:
  mov    -0x50(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x40(%rbp),%rax
  lea    (%rdx,%rax,1),%rdi
  mov    -0x58(%rbp),%rax
  mov    %rax,%rcx
  mov    $0x1,%edx
  mov    $0x1,%esi
  call   <fread@plt>
  addl   $0x1,-0x50(%rbp)
L34:
  mov    -0x50(%rbp),%eax
  cmp    -0x5c(%rbp),%eax
  jl     L56
  mov    D0(%rip),%rax
  mov    (%rax),%edx
  mov    -0x4c(%rbp),%ecx
  mov    -0x58(%rbp),%rax
  mov    %ecx,%esi
  mov    %rax,%rdi
  call   <fseek@plt>
  mov    %rbx,%rsp
  nop
  mov    -0x38(%rbp),%rax
  sub    %fs:0x28,%rax
  je     L44
  call   <__stack_chk_fail@plt>
L44:
  lea    -0x28(%rbp),%rsp
  pop    %rbx
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  pop    %rbp
  ret
```

assistant: ```c
void video_stream_info(FILE *f, int len) {
  int orig_pos = ftell(f);
  unsigned char data[len - 8];
  int i;
  len -= 8;
  for (i = 0; i < len; i++)
    fread(&data[i], 1, 1, f);
  fseek(f, orig_pos, SEEK_SET);
}
```