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

```asm
<isStringElement>:
  endbr64
  push   %r15
  push   %r14
  lea    D8(%rip),%r14
  push   %r13
  lea    D15(%rip),%r13
  push   %r12
  push   %rbp
  mov    %rsi,%rbp
  push   %rbx
  mov    %rdi,%rbx
  mov    %r13,%rdi
  sub    $0x8,%rsp
  call   <strlen@plt>
  mov    %r14,%rdi
  mov    %eax,%r12d
  call   <strlen@plt>
  test   %rbx,%rbx
  je     L42
  mov    %r12d,%edx
  mov    %r13,%rsi
  mov    %rbx,%rdi
  mov    %eax,%r15d
  call   <strncmp@plt>
  test   %rax,%rax
  jne    L27
  test   %rbp,%rbp
  je     L41
  mov    %r13,%rsi
  mov    %rbp,%rdi
  call   <strcpy@plt>
L41:
  add    $0x8,%rsp
  mov    %r12d,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
  cs nopw 0x0(%rax,%rax,1)
L27:
  mov    %r15d,%edx
  mov    %r14,%rsi
  mov    %rbx,%rdi
  call   <strncmp@plt>
  test   %rax,%rax
  je     L70
  movzbl (%rbx),%eax
  cmp    $0x22,%al
  je     L42
  cmp    $0x5c,%al
  je     L42
  mov    $0x1,%r12d
  test   %rbp,%rbp
  je     L41
  mov    %al,0x0(%rbp)
  jmp    L41
  xchg   %ax,%ax
L42:
  xor    %r12d,%r12d
  jmp    L41
  nopl   (%rax)
L70:
  mov    %r15d,%r12d
  test   %rbp,%rbp
  je     L41
  mov    %r14,%rsi
  mov    %rbp,%rdi
  call   <strcpy@plt>
  jmp    L41
```

tool_calls: name: parse_data
arguments: label: D8
type: string
name: parse_data
arguments: label: D15
type: string

tool: D8: \\

tool: D15: \"

assistant: ```c
int isStringElement(const char *c, char *value) {
  const char *start = c;
  const char *ESCAPED_QUOTE = "\\\"";
  const int ESCAPED_QUOTE_SZ = strlen(ESCAPED_QUOTE);
  const char *ESCAPED_BACKSLASH = "\\\\";
  const int ESCAPED_BACKSLASH_SZ = strlen(ESCAPED_BACKSLASH);
  if (c == NULL)
    return 0;
  if (strncmp(c, ESCAPED_QUOTE, ESCAPED_QUOTE_SZ) == 0) {
    if (value != NULL)
      strcpy(value, ESCAPED_QUOTE);
    c += ESCAPED_QUOTE_SZ;
    return c - start;
  } else if (strncmp(c, ESCAPED_BACKSLASH, ESCAPED_BACKSLASH_SZ) == 0) {
    if (value != NULL)
      strcpy(value, ESCAPED_BACKSLASH);
    c += ESCAPED_BACKSLASH_SZ;
    return c - start;
  } else if (*c != '"' && *c != '\\') {
    if (value != NULL)
      *value = *c;
    return 1;
  } else
    return 0;
}
```
user: 请显示与下面列出的汇编代码相匹配的C语言实现：

```asm
<isStringElement>:
  endbr64
  push   %r15
  push   %r14
  lea    D2(%rip),%r14
  push   %r13
  lea    D7(%rip),%r13
  push   %r12
  push   %rbp
  mov    %rsi,%rbp
  push   %rbx
  mov    %rdi,%rbx
  mov    %r13,%rdi
  sub    $0x8,%rsp
  call   <strlen@plt>
  mov    %r14,%rdi
  mov    %eax,%r12d
  call   <strlen@plt>
  test   %rbx,%rbx
  je     L83
  mov    %r12d,%edx
  mov    %r13,%rsi
  mov    %rbx,%rdi
  mov    %eax,%r15d
  call   <strncmp@plt>
  test   %rax,%rax
  jne    L104
  test   %rbp,%rbp
  je     L47
  mov    %r13,%rsi
  mov    %rbp,%rdi
  call   <strcpy@plt>
L47:
  add    $0x8,%rsp
  mov    %r12d,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
  cs nopw 0x0(%rax,%rax,1)
L104:
  mov    %r15d,%edx
  mov    %r14,%rsi
  mov    %rbx,%rdi
  call   <strncmp@plt>
  test   %rax,%rax
  je     L102
  movzbl (%rbx),%eax
  cmp    $0x22,%al
  je     L83
  cmp    $0x5c,%al
  je     L83
  mov    $0x1,%r12d
  test   %rbp,%rbp
  je     L47
  mov    %al,0x0(%rbp)
  jmp    L47
  xchg   %ax,%ax
L83:
  xor    %r12d,%r12d
  jmp    L47
  nopl   (%rax)
L102:
  mov    %r15d,%r12d
  test   %rbp,%rbp
  je     L47
  mov    %r14,%rsi
  mov    %rbp,%rdi
  call   <strcpy@plt>
  jmp    L47
```

tool_calls: name: retrieve_data
arguments: data_tag: D2
data_type: string
name: retrieve_data
arguments: data_tag: D7
data_type: string

tool: D2: \\

tool: D7: \"

assistant: ```c
int isStringElement(const char *c, char *value) {
  const char *start = c;
  const char *ESCAPED_QUOTE = "\\\"";
  const int ESCAPED_QUOTE_SZ = strlen(ESCAPED_QUOTE);
  const char *ESCAPED_BACKSLASH = "\\\\";
  const int ESCAPED_BACKSLASH_SZ = strlen(ESCAPED_BACKSLASH);
  if (c == NULL)
    return 0;
  if (strncmp(c, ESCAPED_QUOTE, ESCAPED_QUOTE_SZ) == 0) {
    if (value != NULL)
      strcpy(value, ESCAPED_QUOTE);
    c += ESCAPED_QUOTE_SZ;
    return c - start;
  } else if (strncmp(c, ESCAPED_BACKSLASH, ESCAPED_BACKSLASH_SZ) == 0) {
    if (value != NULL)
      strcpy(value, ESCAPED_BACKSLASH);
    c += ESCAPED_BACKSLASH_SZ;
    return c - start;
  } else if (*c != '"' && *c != '\\') {
    if (value != NULL)
      *value = *c;
    return 1;
  } else
    return 0;
}
```
user: What is the c source code of the assembly code below?

```asm
<sqllogTokenize>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x30,%rsp
  mov    %rdi,-0x18(%rbp)
  mov    %rsi,-0x20(%rbp)
  mov    %rdx,-0x28(%rbp)
  mov    -0x18(%rbp),%rax
  mov    %rax,-0x8(%rbp)
  jmp    L14
L42:
  addq   $0x1,-0x8(%rbp)
L14:
  mov    -0x8(%rbp),%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  mov    %eax,%edi
  call   <sqllog_isspace@plt>
  test   %rax,%rax
  jne    L42
  mov    -0x20(%rbp),%rax
  mov    -0x8(%rbp),%rdx
  mov    %rdx,(%rax)
  movl   $0x0,-0xc(%rbp)
  jmp    L39
L0:
  addl   $0x1,-0xc(%rbp)
L39:
  mov    -0xc(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x8(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  cmp    $0x60,%al
  jle    L50
  mov    -0xc(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x8(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  cmp    $0x7a,%al
  jle    L0
L50:
  mov    -0xc(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x8(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  cmp    $0x40,%al
  jle    L51
  mov    -0xc(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x8(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  cmp    $0x5a,%al
  jle    L0
L51:
  mov    -0x28(%rbp),%rax
  mov    -0xc(%rbp),%edx
  mov    %edx,(%rax)
  nop
  leave
  ret
```

assistant: ```c
void sqllogTokenize(const char *z, const char **pz, int *pn) {
  const char *p = z;
  int n;
  while (sqllog_isspace(*p)) {
    p++;
  }
  *pz = p;
  n = 0;
  while ((p[n] >= 'a' && p[n] <= 'z') || (p[n] >= 'A' && p[n] <= 'Z'))
    n++;
  *pn = n;
}
```
user: 这段汇编代码用C语言表示是什么样的？

```asm
<sqllogTokenize>:
  endbr64
  push   %r12
  push   %rbp
  push   %rbx
  mov    %rdi,%rbx
  mov    %rsi,%r12
  mov    %rdx,%rbp
  jmp    L8
L15:
  add    $0x1,%rbx
L8:
  movsbl (%rbx),%edi
  call   <sqllog_isspace@plt>
  test   %rax,%rax
  jne    L15
  mov    %rbx,(%r12)
  movzbl (%rbx),%eax
  and    $0xffffffdf,%eax
  sub    $0x41,%eax
  cmp    $0x19,%al
  ja     L27
  mov    $0x1,%edx
L23:
  mov    %edx,%ecx
  movzbl (%rbx,%rdx,1),%eax
  and    $0xffffffdf,%eax
  sub    $0x41,%eax
  add    $0x1,%rdx
  cmp    $0x19,%al
  jbe    L23
L6:
  mov    %ecx,0x0(%rbp)
  pop    %rbx
  pop    %rbp
  pop    %r12
  ret
L27:
  mov    $0x0,%ecx
  jmp    L6
```

assistant: ```c
void sqllogTokenize(const char *z, const char **pz, int *pn) {
  const char *p = z;
  int n;
  while (sqllog_isspace(*p)) {
    p++;
  }
  *pz = p;
  n = 0;
  while ((p[n] >= 'a' && p[n] <= 'z') || (p[n] >= 'A' && p[n] <= 'Z'))
    n++;
  *pn = n;
}
```
user: 提供的汇编代码用C语言表示会是什么样子:

```asm
<sqllogTokenize>:
  endbr64
  push   %r12
  mov    %rsi,%r12
  push   %rbp
  mov    %rdx,%rbp
  push   %rbx
  mov    %rdi,%rbx
  jmp    L23
  nopl   0x0(%rax,%rax,1)
L36:
  add    $0x1,%rbx
L23:
  movsbl (%rbx),%edi
  call   <sqllog_isspace@plt>
  test   %rax,%rax
  jne    L36
  mov    %rbx,(%r12)
  movzbl (%rbx),%eax
  and    $0xffffffdf,%eax
  sub    $0x41,%eax
  cmp    $0x19,%al
  ja     L4
  mov    $0x1,%edx
  nop
L31:
  movzbl (%rbx,%rdx,1),%eax
  mov    %edx,%ecx
  add    $0x1,%rdx
  and    $0xffffffdf,%eax
  sub    $0x41,%eax
  cmp    $0x19,%al
  jbe    L31
  pop    %rbx
  mov    %ecx,0x0(%rbp)
  pop    %rbp
  pop    %r12
  ret
  nopl   0x0(%rax)
L4:
  xor    %ecx,%ecx
  pop    %rbx
  mov    %ecx,0x0(%rbp)
  pop    %rbp
  pop    %r12
  ret
```

assistant: ```c
void sqllogTokenize(const char *z, const char **pz, int *pn) {
  const char *p = z;
  int n;
  while (sqllog_isspace(*p)) {
    p++;
  }
  *pz = p;
  n = 0;
  while ((p[n] >= 'a' && p[n] <= 'z') || (p[n] >= 'A' && p[n] <= 'Z'))
    n++;
  *pn = n;
}
```
user: Demonstrate the C code that generates the assembly output below:

```asm
<sqllogTokenize>:
  endbr64
  push   %r12
  mov    %rsi,%r12
  push   %rbp
  mov    %rdx,%rbp
  push   %rbx
  mov    %rdi,%rbx
  jmp    L30
  nopl   0x0(%rax,%rax,1)
L35:
  add    $0x1,%rbx
L30:
  movsbl (%rbx),%edi
  call   <sqllog_isspace@plt>
  test   %rax,%rax
  jne    L35
  mov    %rbx,(%r12)
  movzbl (%rbx),%eax
  and    $0xffffffdf,%eax
  sub    $0x41,%eax
  cmp    $0x19,%al
  ja     L31
  mov    $0x1,%edx
  nop
L19:
  movzbl (%rbx,%rdx,1),%eax
  mov    %edx,%ecx
  add    $0x1,%rdx
  and    $0xffffffdf,%eax
  sub    $0x41,%eax
  cmp    $0x19,%al
  jbe    L19
  pop    %rbx
  mov    %ecx,0x0(%rbp)
  pop    %rbp
  pop    %r12
  ret
  nopl   0x0(%rax)
L31:
  xor    %ecx,%ecx
  pop    %rbx
  mov    %ecx,0x0(%rbp)
  pop    %rbp
  pop    %r12
  ret
```

assistant: ```c
void sqllogTokenize(const char *z, const char **pz, int *pn) {
  const char *p = z;
  int n;
  while (sqllog_isspace(*p)) {
    p++;
  }
  *pz = p;
  n = 0;
  while ((p[n] >= 'a' && p[n] <= 'z') || (p[n] >= 'A' && p[n] <= 'Z'))
    n++;
  *pn = n;
}
```
user: What is the c source code of the assembly code below:

```asm
<rec>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x40,%rsp
  mov    %rdi,-0x18(%rbp)
  mov    %rsi,-0x20(%rbp)
  mov    %edx,-0x24(%rbp)
  mov    %ecx,%eax
  mov    %r8d,-0x2c(%rbp)
  mov    %r9,-0x38(%rbp)
  mov    %al,-0x28(%rbp)
  mov    -0x18(%rbp),%rax
  mov    %rax,-0x8(%rbp)
  cmpl   $0x0,-0x24(%rbp)
  je     L15
  subl   $0x1,-0x24(%rbp)
L15:
  mov    -0x2c(%rbp),%eax
  cmp    %rax,-0x20(%rbp)
  jb     L21
  movsbl -0x28(%rbp),%ecx
  mov    -0x2c(%rbp),%esi
  mov    -0x20(%rbp),%rax
  mov    $0x0,%edx
  div    %rsi
  mov    %rax,%r10
  mov    -0x38(%rbp),%rdi
  mov    -0x2c(%rbp),%esi
  mov    -0x24(%rbp),%edx
  mov    -0x8(%rbp),%rax
  mov    %rdi,%r9
  mov    %esi,%r8d
  mov    %r10,%rsi
  mov    %rax,%rdi
  call   <rec>
  mov    %eax,%eax
  add    %rax,-0x8(%rbp)
  jmp    L19
L21:
  movsbl -0x28(%rbp),%ecx
  mov    -0x24(%rbp),%edx
  mov    -0x8(%rbp),%rax
  mov    %ecx,%esi
  mov    %rax,%rdi
  call   <memset@plt>
  mov    -0x24(%rbp),%eax
  add    %rax,-0x8(%rbp)
L19:
  mov    -0x2c(%rbp),%ecx
  mov    -0x20(%rbp),%rax
  mov    $0x0,%edx
  div    %rcx
  mov    -0x38(%rbp),%rax
  lea    (%rdx,%rax,1),%rcx
  mov    -0x8(%rbp),%rax
  lea    0x1(%rax),%rdx
  mov    %rdx,-0x8(%rbp)
  movzbl (%rcx),%edx
  mov    %dl,(%rax)
  mov    -0x8(%rbp),%rax
  sub    -0x18(%rbp),%rax
  leave
  ret
```

assistant: ```c
unsigned rec(char *buffer, unsigned long long num, unsigned width, char pad, unsigned base, const char *digits) {
  char *s = buffer;
  if (width)
    --width;
  if (num >= base)
    s += rec(s, num / base, width, pad, base, digits);
  else {
    memset(s, pad, width);
    s += width;
  }
  *s++ = digits[num % base];
  return s - buffer;
}
```
user: 这段汇编代码用C语言表示是什么样的？

```asm
<rec>:
  endbr64
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  mov    %rdi,%r12
  mov    %rsi,%rbp
  mov    %r9,%r14
  cmp    $0x1,%edx
  mov    %edx,%ebx
  adc    $0xffffffff,%ebx
  mov    %r8d,%r13d
  cmp    %rsi,%r13
  ja     L11
  movsbl %cl,%ecx
  mov    %rsi,%rax
  mov    $0x0,%edx
  div    %r13
  mov    %rax,%rsi
  mov    %ebx,%edx
  call   <rec>
  mov    %eax,%ecx
  add    %r12,%rcx
L19:
  mov    %rbp,%rax
  mov    $0x0,%edx
  div    %r13
  movzbl (%r14,%rdx,1),%eax
  mov    %al,(%rcx)
  lea    0x1(%rcx),%rax
  sub    %r12d,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  ret
L11:
  movsbl %cl,%esi
  mov    %ebx,%edx
  call   <memset@plt>
  mov    %ebx,%ecx
  add    %r12,%rcx
  jmp    L19
```

assistant: ```c
unsigned rec(char *buffer, unsigned long long num, unsigned width, char pad, unsigned base, const char *digits) {
  char *s = buffer;
  if (width)
    --width;
  if (num >= base)
    s += rec(s, num / base, width, pad, base, digits);
  else {
    memset(s, pad, width);
    s += width;
  }
  *s++ = digits[num % base];
  return s - buffer;
}
```
user: 请将这段汇编代码片段转换成等效的C代码：

```asm
<rec>:
  endbr64
  cmp    $0x1,%edx
  push   %r14
  movsbl %cl,%ecx
  push   %r13
  adc    $0xffffffff,%edx
  mov    %r9,%r13
  push   %r12
  mov    %r8d,%r12d
  mov    %edx,%r14d
  push   %rbp
  mov    %rdi,%rbp
  push   %rbx
  mov    %rsi,%rbx
  cmp    %rsi,%r12
  ja     L6
  mov    %rsi,%rax
  xor    %edx,%edx
  div    %r12
  mov    %r14d,%edx
  mov    %rax,%rsi
  call   <rec>
  mov    %eax,%ecx
  add    %rbp,%rcx
L16:
  mov    %rbx,%rax
  xor    %edx,%edx
  div    %r12
  movzbl 0x0(%r13,%rdx,1),%eax
  mov    %al,(%rcx)
  lea    0x1(%rcx),%rax
  pop    %rbx
  sub    %ebp,%eax
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  ret
L6:
  mov    %ecx,%esi
  call   <memset@plt>
  mov    %r14d,%ecx
  add    %rbp,%rcx
  jmp    L16
```

assistant: ```c
unsigned rec(char *buffer, unsigned long long num, unsigned width, char pad, unsigned base, const char *digits) {
  char *s = buffer;
  if (width)
    --width;
  if (num >= base)
    s += rec(s, num / base, width, pad, base, digits);
  else {
    memset(s, pad, width);
    s += width;
  }
  *s++ = digits[num % base];
  return s - buffer;
}
```
user: 这段汇编代码用C语言表示是什么样的?

```asm
<hex2byte>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x40,%rsp
  mov    %rdi,-0x28(%rbp)
  mov    %rsi,-0x30(%rbp)
  mov    %rdx,-0x38(%rbp)
  movq   $0x0,-0x18(%rbp)
  mov    -0x28(%rbp),%rax
  mov    %rax,-0x10(%rbp)
  mov    -0x30(%rbp),%rax
  mov    %rax,-0x8(%rbp)
  cmpq   $0x0,-0x38(%rbp)
  jne    L114
  mov    $0xffffffff,%eax
  jmp    L27
L114:
  mov    -0x30(%rbp),%rax
  movb   $0x0,(%rax)
  mov    -0x28(%rbp),%rax
  mov    %rax,-0x10(%rbp)
  movq   $0x0,-0x18(%rbp)
  jmp    L71
L121:
  mov    -0x10(%rbp),%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  mov    %eax,%edi
  call   <isxdigit@plt>
  test   %rax,%rax
  je     L4
  addq   $0x1,-0x18(%rbp)
  jmp    L73
L4:
  mov    -0x10(%rbp),%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  mov    %eax,%edi
  call   <isspace@plt>
  test   %eax,%eax
  jne    L73
  mov    $0xfffffffe,%eax
  jmp    L27
L73:
  addq   $0x1,-0x10(%rbp)
L71:
  mov    -0x10(%rbp),%rax
  movzbl (%rax),%eax
  test   %al,%al
  jne    L121
  mov    -0x38(%rbp),%rax
  add    %rax,%rax
  cmp    %rax,-0x18(%rbp)
  jbe    L106
  mov    $0xffffffff,%eax
  jmp    L27
L46:
  mov    -0x28(%rbp),%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  mov    %eax,%edi
  call   <isxdigit@plt>
  test   %rax,%rax
  je     L63
  mov    -0x18(%rbp),%rax
  and    $0x1,%eax
  test   %rax,%rax
  je     L111
  mov    -0x28(%rbp),%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  mov    %eax,%edi
  call   <toupper@plt>
  mov    %eax,%edi
  call   <hDigit2byte@plt>
  mov    %eax,%edx
  mov    -0x8(%rbp),%rax
  movzbl (%rax),%eax
  mov    %eax,%ecx
  mov    %edx,%eax
  or     %ecx,%eax
  mov    %eax,%edx
  mov    -0x8(%rbp),%rax
  mov    %dl,(%rax)
  addq   $0x1,-0x8(%rbp)
  jmp    L103
L111:
  mov    -0x28(%rbp),%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  mov    %eax,%edi
  call   <toupper@plt>
  mov    %eax,%edi
  call   <hDigit2byte@plt>
  shl    $0x4,%eax
  mov    %eax,%edx
  mov    -0x8(%rbp),%rax
  mov    %dl,(%rax)
L103:
  subq   $0x1,-0x18(%rbp)
L63:
  addq   $0x1,-0x28(%rbp)
L106:
  mov    -0x28(%rbp),%rax
  movzbl (%rax),%eax
  test   %al,%al
  jne    L46
  mov    -0x8(%rbp),%rax
  sub    -0x30(%rbp),%rax
L27:
  leave
  ret
```

assistant: ```c
int hex2byte(const char *hexStr, unsigned char *outData, size_t outSize) {
  size_t len = 0;
  const char *inStr = hexStr;
  unsigned char *data = outData;
  if (outSize == 0)
    return -1;
  else
    *outData = 0;
  for (inStr = hexStr, len = 0; *inStr; inStr++) {
    if (isxdigit(*inStr))
      len++;
    else if (!isspace(*inStr))
      return -2;
  }
  if (len > outSize * 2)
    return (-1);
  while (*hexStr) {
    if (isxdigit(*hexStr)) {
      if (len % 2) {
        *data |= hDigit2byte(toupper(*hexStr));
        data++;
      } else
        *data = (unsigned char)(hDigit2byte(toupper(*hexStr)) << 4);
      len--;
    }
    hexStr++;
  }
  return (data - outData);
}
```
user: What would the C source look like for the assembly code provided here?

```asm
<hex2byte>:
  endbr64
  test   %rdx,%rdx
  je     L131
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  mov    %rdi,%r12
  mov    %rsi,%r14
  mov    %rdx,%r13
  movb   $0x0,(%rsi)
  movzbl (%rdi),%edi
  test   %dil,%dil
  je     L38
  mov    %r12,%rbx
  mov    $0x0,%ebp
  jmp    L4
L110:
  movsbl (%rbx),%edi
  call   <isspace@plt>
  test   %eax,%eax
  je     L82
L79:
  add    $0x1,%rbx
  movzbl (%rbx),%edi
  test   %dil,%dil
  je     L32
L4:
  movsbl %dil,%edi
  call   <isxdigit@plt>
  test   %rax,%rax
  je     L110
  add    $0x1,%rbp
  jmp    L79
L32:
  add    %r13,%r13
  cmp    %rbp,%r13
  jb     L21
  movzbl (%r12),%edi
  test   %dil,%dil
  je     L132
  mov    %r14,%rbx
  jmp    L24
L153:
  movsbl (%r12),%edi
  call   <toupper@plt>
  mov    %eax,%edi
  call   <hDigit2byte@plt>
  shl    $0x4,%eax
  mov    %rbx,%rdx
L74:
  mov    %al,(%rbx)
  sub    $0x1,%rbp
  mov    %rdx,%rbx
L98:
  add    $0x1,%r12
  movzbl (%r12),%edi
  test   %dil,%dil
  je     L111
L24:
  movsbl %dil,%edi
  call   <isxdigit@plt>
  test   %rax,%rax
  je     L98
  test   $0x1,%bpl
  je     L153
  movsbl (%r12),%edi
  call   <toupper@plt>
  mov    %eax,%edi
  call   <hDigit2byte@plt>
  or     (%rbx),%al
  lea    0x1(%rbx),%rdx
  jmp    L74
L38:
  mov    %rsi,%rbx
L111:
  mov    %ebx,%eax
  sub    %r14d,%eax
L139:
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  ret
L132:
  mov    %r14,%rbx
  jmp    L111
L131:
  mov    $0xffffffff,%eax
  ret
L82:
  mov    $0xfffffffe,%eax
  jmp    L139
L21:
  mov    $0xffffffff,%eax
  jmp    L139
```

assistant: ```c
int hex2byte(const char *hexStr, unsigned char *outData, size_t outSize) {
  size_t len = 0;
  const char *inStr = hexStr;
  unsigned char *data = outData;
  if (outSize == 0)
    return -1;
  else
    *outData = 0;
  for (inStr = hexStr, len = 0; *inStr; inStr++) {
    if (isxdigit(*inStr))
      len++;
    else if (!isspace(*inStr))
      return -2;
  }
  if (len > outSize * 2)
    return (-1);
  while (*hexStr) {
    if (isxdigit(*hexStr)) {
      if (len % 2) {
        *data |= hDigit2byte(toupper(*hexStr));
        data++;
      } else
        *data = (unsigned char)(hDigit2byte(toupper(*hexStr)) << 4);
      len--;
    }
    hexStr++;
  }
  return (data - outData);
}
```
user: 这段汇编代码用C语言表示是什么样的:

```asm
<hex2byte>:
  endbr64
  test   %rdx,%rdx
  je     L135
  push   %r14
  movb   $0x0,(%rsi)
  push   %r13
  mov    %rsi,%r13
  push   %r12
  push   %rbp
  mov    %rdi,%rbp
  push   %rbx
  movsbl (%rdi),%edi
  test   %dil,%dil
  je     L140
  mov    %rdx,%r12
  mov    %rbp,%r14
  xor    %ebx,%ebx
  jmp    L129
  nopl   0x0(%rax)
L91:
  add    $0x1,%rbx
L41:
  movsbl 0x1(%r14),%edi
  add    $0x1,%r14
  test   %dil,%dil
  je     L141
L129:
  call   <isxdigit@plt>
  test   %rax,%rax
  jne    L91
  movsbl (%r14),%edi
  call   <isspace@plt>
  test   %eax,%eax
  jne    L41
  pop    %rbx
  mov    $0xfffffffe,%eax
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  ret
  nop
L141:
  add    %r12,%r12
  cmp    %rbx,%r12
  jb     L59
  movsbl 0x0(%rbp),%edi
  test   %dil,%dil
  je     L140
  mov    %r13,%r12
  jmp    L23
  nopw   0x0(%rax,%rax,1)
L36:
  call   <toupper@plt>
  mov    %eax,%edi
  call   <hDigit2byte@plt>
  lea    0x1(%r12),%rdx
  or     (%r12),%al
L48:
  mov    %al,(%r12)
  sub    $0x1,%rbx
  mov    %rdx,%r12
L107:
  movsbl 0x1(%rbp),%edi
  add    $0x1,%rbp
  test   %dil,%dil
  je     L16
L23:
  call   <isxdigit@plt>
  test   %rax,%rax
  je     L107
  movsbl 0x0(%rbp),%edi
  test   $0x1,%bl
  jne    L36
  call   <toupper@plt>
  mov    %eax,%edi
  call   <hDigit2byte@plt>
  mov    %r12,%rdx
  shl    $0x4,%eax
  jmp    L48
  nopl   0x0(%rax)
L16:
  mov    %r12d,%eax
  sub    %r13d,%eax
L106:
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  ret
L140:
  xor    %eax,%eax
  jmp    L106
L59:
  mov    $0xffffffff,%eax
  jmp    L106
L135:
  or     $0xffffffff,%eax
  ret
```

assistant: ```c
int hex2byte(const char *hexStr, unsigned char *outData, size_t outSize) {
  size_t len = 0;
  const char *inStr = hexStr;
  unsigned char *data = outData;
  if (outSize == 0)
    return -1;
  else
    *outData = 0;
  for (inStr = hexStr, len = 0; *inStr; inStr++) {
    if (isxdigit(*inStr))
      len++;
    else if (!isspace(*inStr))
      return -2;
  }
  if (len > outSize * 2)
    return (-1);
  while (*hexStr) {
    if (isxdigit(*hexStr)) {
      if (len % 2) {
        *data |= hDigit2byte(toupper(*hexStr));
        data++;
      } else
        *data = (unsigned char)(hDigit2byte(toupper(*hexStr)) << 4);
      len--;
    }
    hexStr++;
  }
  return (data - outData);
}
```
user: 请显示与下面列出的汇编代码相匹配的C语言实现：

```asm
<hex2byte>:
  endbr64
  test   %rdx,%rdx
  je     L15
  push   %r14
  movb   $0x0,(%rsi)
  push   %r13
  mov    %rsi,%r13
  push   %r12
  push   %rbp
  mov    %rdi,%rbp
  push   %rbx
  movsbl (%rdi),%edi
  test   %dil,%dil
  je     L145
  mov    %rdx,%r12
  mov    %rbp,%r14
  xor    %ebx,%ebx
  jmp    L75
  nopl   0x0(%rax)
L20:
  add    $0x1,%rbx
L49:
  movsbl 0x1(%r14),%edi
  add    $0x1,%r14
  test   %dil,%dil
  je     L13
L75:
  call   <isxdigit@plt>
  test   %rax,%rax
  jne    L20
  movsbl (%r14),%edi
  call   <isspace@plt>
  test   %eax,%eax
  jne    L49
  pop    %rbx
  mov    $0xfffffffe,%eax
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  ret
  nop
L13:
  add    %r12,%r12
  cmp    %rbx,%r12
  jb     L3
  movsbl 0x0(%rbp),%edi
  test   %dil,%dil
  je     L145
  mov    %r13,%r12
  jmp    L116
  nopw   0x0(%rax,%rax,1)
L36:
  call   <toupper@plt>
  mov    %eax,%edi
  call   <hDigit2byte@plt>
  lea    0x1(%r12),%rdx
  or     (%r12),%al
L77:
  mov    %al,(%r12)
  sub    $0x1,%rbx
  mov    %rdx,%r12
L23:
  movsbl 0x1(%rbp),%edi
  add    $0x1,%rbp
  test   %dil,%dil
  je     L113
L116:
  call   <isxdigit@plt>
  test   %rax,%rax
  je     L23
  movsbl 0x0(%rbp),%edi
  test   $0x1,%bl
  jne    L36
  call   <toupper@plt>
  mov    %eax,%edi
  call   <hDigit2byte@plt>
  mov    %r12,%rdx
  shl    $0x4,%eax
  jmp    L77
  nopl   0x0(%rax)
L113:
  mov    %r12d,%eax
  sub    %r13d,%eax
L123:
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  ret
L145:
  xor    %eax,%eax
  jmp    L123
L3:
  mov    $0xffffffff,%eax
  jmp    L123
L15:
  or     $0xffffffff,%eax
  ret
```

assistant: ```c
int hex2byte(const char *hexStr, unsigned char *outData, size_t outSize) {
  size_t len = 0;
  const char *inStr = hexStr;
  unsigned char *data = outData;
  if (outSize == 0)
    return -1;
  else
    *outData = 0;
  for (inStr = hexStr, len = 0; *inStr; inStr++) {
    if (isxdigit(*inStr))
      len++;
    else if (!isspace(*inStr))
      return -2;
  }
  if (len > outSize * 2)
    return (-1);
  while (*hexStr) {
    if (isxdigit(*hexStr)) {
      if (len % 2) {
        *data |= hDigit2byte(toupper(*hexStr));
        data++;
      } else
        *data = (unsigned char)(hDigit2byte(toupper(*hexStr)) << 4);
      len--;
    }
    hexStr++;
  }
  return (data - outData);
}
```