ylfeng/ReF-Decompile-dataset huggingface dataset:
user: 这段汇编代码用C语言表示是什么样的：

```asm
<obtenirNombreAleatoire>:
  endbr64
  sub    $0x8,%rsp
  xor    %edi,%edi
  call   <time@plt>
  mov    %eax,%edi
  call   <srand@plt>
  xor    %eax,%eax
  call   <rand@plt>
  add    $0x8,%rsp
  mov    %eax,%edx
  cltq
  imul   $0x51eb851f,%rax,%rax
  mov    %edx,%ecx
  sar    $0x1f,%ecx
  sar    $0x25,%rax
  sub    %ecx,%eax
  imul   $0x64,%eax,%ecx
  mov    %edx,%eax
  sub    %ecx,%eax
  ret
```

assistant: ```c
int obtenirNombreAleatoire() {
  srand(time(NULL));
  return rand() % 100;
}
```
user: 请从给定的汇编指令推导出C源代码：

```asm
<obtenirNombreAleatoire>:
  endbr64
  sub    $0x8,%rsp
  xor    %edi,%edi
  call   <time@plt>
  mov    %eax,%edi
  call   <srand@plt>
  xor    %eax,%eax
  call   <rand@plt>
  add    $0x8,%rsp
  mov    %eax,%edx
  cltq
  imul   $0x51eb851f,%rax,%rax
  mov    %edx,%ecx
  sar    $0x1f,%ecx
  sar    $0x25,%rax
  sub    %ecx,%eax
  imul   $0x64,%eax,%ecx
  mov    %edx,%eax
  sub    %ecx,%eax
  ret
```

assistant: ```c
int obtenirNombreAleatoire() {
  srand(time(NULL));
  return rand() % 100;
}
```
user: 请将这段汇编代码片段转换成等效的C代码:

```asm
<printname>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x20,%rsp
  mov    %rdi,-0x18(%rbp)
  movl   $0x0,-0x4(%rbp)
  jmp    L50
L14:
  mov    -0x18(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x1f,%al
  jbe    L20
  mov    -0x18(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x7e,%al
  jbe    L17
L20:
  mov    -0x18(%rbp),%rax
  movzbl (%rax),%eax
  test   %al,%al
  jns    L31
L17:
  mov    -0x18(%rbp),%rax
  movzbl (%rax),%eax
  movzbl %al,%eax
  mov    %eax,%edi
  call   <putchar@plt>
  addl   $0x1,-0x4(%rbp)
  jmp    L8
L31:
  mov    -0x18(%rbp),%rax
  movzbl (%rax),%eax
  movzbl %al,%eax
  mov    %eax,%esi
  lea    D4(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
  addl   $0x4,-0x4(%rbp)
L8:
  addq   $0x1,-0x18(%rbp)
L50:
  mov    -0x18(%rbp),%rax
  movzbl (%rax),%eax
  test   %al,%al
  jne    L14
  mov    -0x4(%rbp),%eax
  leave
  ret
```

tool_calls: name: extract_symbolic_data
arguments: data_tag: D4
datatype: string

tool: D4: \%03o

assistant: ```c
int printname(unsigned char *p) {
  int len = 0;
  for (; *p; ++p) {
    if ((*p >= ' ' && *p <= '~') || (*p >= 0200 && *p <= 0377)) {
      putchar(*p);
      ++len;
    } else {
      printf("\\%03o", *p);
      len += 4;
    }
  }
  return (len);
}
```
user: 提供的汇编代码用C语言表示会是什么样子：

```asm
<printname>:
  endbr64
  push   %r12
  push   %rbp
  push   %rbx
  movzbl (%rdi),%esi
  test   %sil,%sil
  je     L49
  mov    %rdi,%rbx
  mov    $0x0,%ebp
  lea    D0(%rip),%r12
  jmp    L14
L35:
  movzbl %sil,%edi
  call   <putchar@plt>
  add    $0x1,%ebp
L22:
  add    $0x1,%rbx
  movzbl (%rbx),%esi
  test   %sil,%sil
  je     L55
L14:
  lea    -0x20(%rsi),%eax
  cmp    $0x5e,%al
  jbe    L35
  test   %sil,%sil
  js     L35
  movzbl %sil,%esi
  mov    %r12,%rdi
  call   <printf@plt>
  add    $0x4,%ebp
  jmp    L22
L49:
  mov    $0x0,%ebp
L55:
  mov    %ebp,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  ret
```

tool_calls: name: unpack_data
arguments: data_tag: D0
type_infered: string

tool: D0: \%03o

assistant: ```c
int printname(unsigned char *p) {
  int len = 0;
  for (; *p; ++p) {
    if ((*p >= ' ' && *p <= '~') || (*p >= 0200 && *p <= 0377)) {
      putchar(*p);
      ++len;
    } else {
      printf("\\%03o", *p);
      len += 4;
    }
  }
  return (len);
}
```
user: 请将这段汇编代码片段转换成等效的C代码：

```asm
<printname>:
  endbr64
  push   %r12
  push   %rbp
  push   %rbx
  movzbl (%rdi),%eax
  test   %al,%al
  je     L40
  mov    %rdi,%rbx
  xor    %r12d,%r12d
  lea    D1(%rip),%rbp
  jmp    L19
  xchg   %ax,%ax
L7:
  mov    %rbp,%rdi
  add    $0x1,%rbx
  add    $0x4,%r12d
  call   <printf@plt>
  movzbl (%rbx),%eax
  test   %al,%al
  je     L59
L19:
  lea    -0x20(%rax),%edx
  movzbl %al,%esi
  cmp    $0x5e,%dl
  jbe    L18
  test   %al,%al
  jns    L7
L18:
  mov    %esi,%edi
  add    $0x1,%rbx
  add    $0x1,%r12d
  call   <putchar@plt>
  movzbl (%rbx),%eax
  test   %al,%al
  jne    L19
L59:
  mov    %r12d,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  ret
  nopl   0x0(%rax)
L40:
  xor    %r12d,%r12d
  pop    %rbx
  pop    %rbp
  mov    %r12d,%eax
  pop    %r12
  ret
```

tool_calls: name: parse_data
arguments: data_label: D1
data_type: string

tool: D1: \%03o

assistant: ```c
int printname(unsigned char *p) {
  int len = 0;
  for (; *p; ++p) {
    if ((*p >= ' ' && *p <= '~') || (*p >= 0200 && *p <= 0377)) {
      putchar(*p);
      ++len;
    } else {
      printf("\\%03o", *p);
      len += 4;
    }
  }
  return (len);
}
```
user: Translate the below assembly code into C programming language:

```asm
<printname>:
  endbr64
  push   %r12
  push   %rbp
  push   %rbx
  movzbl (%rdi),%eax
  test   %al,%al
  je     L40
  mov    %rdi,%rbx
  xor    %r12d,%r12d
  lea    D4(%rip),%rbp
  nopl   0x0(%rax)
L13:
  lea    -0x20(%rax),%edx
  movzbl %al,%esi
  cmp    $0x5e,%dl
  jbe    L48
  test   %al,%al
  js     L48
  mov    %rbp,%rdi
  add    $0x1,%rbx
  add    $0x4,%r12d
  call   <printf@plt>
  movzbl (%rbx),%eax
  test   %al,%al
  jne    L13
  mov    %r12d,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  ret
  xchg   %ax,%ax
L48:
  mov    %esi,%edi
  add    $0x1,%rbx
  add    $0x1,%r12d
  call   <putchar@plt>
  movzbl (%rbx),%eax
  test   %al,%al
  jne    L13
  mov    %r12d,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  ret
  xchg   %ax,%ax
L40:
  xor    %r12d,%r12d
  pop    %rbx
  pop    %rbp
  mov    %r12d,%eax
  pop    %r12
  ret
```

tool_calls: name: parse_data
arguments: label: D4
type: string

tool: D4: \%03o

assistant: ```c
int printname(unsigned char *p) {
  int len = 0;
  for (; *p; ++p) {
    if ((*p >= ' ' && *p <= '~') || (*p >= 0200 && *p <= 0377)) {
      putchar(*p);
      ++len;
    } else {
      printf("\\%03o", *p);
      len += 4;
    }
  }
  return (len);
}
```
user: 这段汇编代码用C语言表示是什么样的:

```asm
<main>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x10,%rsp
  movl   $0xfff00000,-0x8(%rbp)
  movl   $0x0,-0x4(%rbp)
  mov    -0x8(%rbp),%eax
  add    $0x20,%eax
  mov    %eax,%edi
  call   <test@plt>
  mov    -0x8(%rbp),%eax
  add    $0x21,%eax
  mov    %eax,%edi
  call   <test@plt>
  mov    -0x4(%rbp),%eax
  add    $0x40,%eax
  mov    %eax,%edi
  call   <testL@plt>
  mov    -0x4(%rbp),%eax
  add    $0x41,%eax
  mov    %eax,%edi
  call   <testL@plt>
  mov    $0x0,%eax
  leave
  ret
```

assistant: ```c
int main() {
  int B20 = -(1 << 20);
  int64_t B53 = -((int64_t)1 << 53);
  test(B20 + 32);
  test(B20 + 33);
  testL(B53 + 64);
  testL(B53 + 65);
  return 0;
}
```
user: Translate the below assembly code into C programming language:

```asm
<main>:
  endbr64
  sub    $0x8,%rsp
  mov    $0xfff00020,%edi
  call   <test@plt>
  mov    $0xfff00021,%edi
  call   <test@plt>
  mov    $0x40,%edi
  call   <testL@plt>
  mov    $0x41,%edi
  call   <testL@plt>
  mov    $0x0,%eax
  add    $0x8,%rsp
  ret
```

assistant: ```c
int main() {
  int B20 = -(1 << 20);
  int64_t B53 = -((int64_t)1 << 53);
  test(B20 + 32);
  test(B20 + 33);
  testL(B53 + 64);
  testL(B53 + 65);
  return 0;
}
```
user: 提供的汇编代码用C语言表示会是什么样子:

```asm
<main>:
  endbr64
  sub    $0x8,%rsp
  mov    $0xfff00020,%edi
  call   <test@plt>
  mov    $0xfff00021,%edi
  call   <test@plt>
  mov    $0x40,%edi
  call   <testL@plt>
  mov    $0x41,%edi
  call   <testL@plt>
  xor    %eax,%eax
  add    $0x8,%rsp
  ret
```

assistant: ```c
int main() {
  int B20 = -(1 << 20);
  int64_t B53 = -((int64_t)1 << 53);
  test(B20 + 32);
  test(B20 + 33);
  testL(B53 + 64);
  testL(B53 + 65);
  return 0;
}
```
user: 请将这段汇编代码片段转换成等效的C代码：

```asm
<main>:
  endbr64
  sub    $0x8,%rsp
  mov    $0xfff00020,%edi
  call   <test@plt>
  mov    $0xfff00021,%edi
  call   <test@plt>
  mov    $0x40,%edi
  call   <testL@plt>
  mov    $0x41,%edi
  call   <testL@plt>
  xor    %eax,%eax
  add    $0x8,%rsp
  ret
```

assistant: ```c
int main() {
  int B20 = -(1 << 20);
  int64_t B53 = -((int64_t)1 << 53);
  test(B20 + 32);
  test(B20 + 33);
  testL(B53 + 64);
  testL(B53 + 65);
  return 0;
}
```
user: Please show me the C implementation that matches the assembly code listed below:

```asm
<convert_to_str>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    %edi,-0x4(%rbp)
  mov    %esi,-0x8(%rbp)
  mov    %edx,-0xc(%rbp)
  mov    %ecx,-0x10(%rbp)
  cmpl   $0xffffffff,-0xc(%rbp)
  je     L46
  cmpl   $0x1,-0xc(%rbp)
  jne    L24
L46:
  cmpl   $0xffffffff,-0xc(%rbp)
  jne    L15
  mov    $0x4c,%eax
  jmp    L27
L15:
  mov    $0x52,%eax
L27:
  mov    %al,D3(%rip)
  mov    -0x4(%rbp),%eax
  add    $0x30,%eax
  mov    %al,D29(%rip)
  jmp    L17
L24:
  cmpl   $0xffffffff,-0x10(%rbp)
  jne    L22
  mov    $0x42,%eax
  jmp    L30
L22:
  mov    $0x54,%eax
L30:
  mov    %al,D5(%rip)
  mov    -0x8(%rbp),%eax
  add    $0x30,%eax
  mov    %al,D5(%rip)
L17:
  lea    D5(%rip),%rax
  pop    %rbp
  ret
```

assistant: ```c
char *convert_to_str(int line, int col, int vx, int vy) {
  static char str[3] = {0};
  if (vx == -1 || vx == 1) {
    str[0] = (vx == -1 ? 'L' : 'R');
    str[1] = line + '0';
  } else {
    str[0] = (vy == -1 ? 'B' : 'T');
    str[1] = col + '0';
  }
  return str;
}
```
user: Translate the below assembly code into C programming language:

```asm
<convert_to_str>:
  endbr64
  lea    0x1(%rdx),%eax
  test   $0xfffffffd,%eax
  jne    L4
  cmp    $0xffffffff,%edx
  mov    $0x4c,%eax
  mov    $0x52,%edx
  cmovne %edx,%eax
  lea    0x30(%rdi),%esi
L10:
  mov    %al,D0(%rip)
  mov    %sil,D29(%rip)
  lea    D0(%rip),%rax
  ret
L4:
  cmp    $0xffffffff,%ecx
  mov    $0x42,%eax
  mov    $0x54,%edx
  cmovne %edx,%eax
  add    $0x30,%esi
  jmp    L10
```

assistant: ```c
char *convert_to_str(int line, int col, int vx, int vy) {
  static char str[3] = {0};
  if (vx == -1 || vx == 1) {
    str[0] = (vx == -1 ? 'L' : 'R');
    str[1] = line + '0';
  } else {
    str[0] = (vy == -1 ? 'B' : 'T');
    str[1] = col + '0';
  }
  return str;
}
```
user: 这段汇编代码用C语言表示是什么样的:

```asm
<convert_to_str>:
  endbr64
  lea    0x1(%rdx),%eax
  and    $0xfffffffd,%eax
  jne    L15
  cmp    $0xffffffff,%edx
  mov    $0x4c,%eax
  lea    0x30(%rdi),%esi
  mov    $0x52,%edx
  cmovne %edx,%eax
L10:
  mov    %al,D4(%rip)
  lea    D4(%rip),%rax
  mov    %sil,D12(%rip)
  ret
  nopl   0x0(%rax)
L15:
  cmp    $0xffffffff,%ecx
  mov    $0x42,%eax
  mov    $0x54,%edx
  cmovne %edx,%eax
  add    $0x30,%esi
  jmp    L10
```

assistant: ```c
char *convert_to_str(int line, int col, int vx, int vy) {
  static char str[3] = {0};
  if (vx == -1 || vx == 1) {
    str[0] = (vx == -1 ? 'L' : 'R');
    str[1] = line + '0';
  } else {
    str[0] = (vy == -1 ? 'B' : 'T');
    str[1] = col + '0';
  }
  return str;
}
```
user: Demonstrate the C code that generates the assembly output below:

```asm
<convert_to_str>:
  endbr64
  lea    0x1(%rdx),%eax
  and    $0xfffffffd,%eax
  jne    L10
  mov    $0x52,%eax
  cmp    $0xffffffff,%edx
  mov    $0x4c,%ecx
  cmovne %eax,%ecx
  lea    0x30(%rdi),%eax
L0:
  xor    %edx,%edx
  mov    %cl,%dl
  mov    %al,%dh
  lea    D6(%rip),%rax
  mov    %dx,D18(%rip)
  ret
  nopl   0x0(%rax)
L10:
  cmp    $0xffffffff,%ecx
  mov    $0x54,%eax
  mov    $0x42,%ecx
  cmovne %eax,%ecx
  lea    0x30(%rsi),%eax
  jmp    L0
```

assistant: ```c
char *convert_to_str(int line, int col, int vx, int vy) {
  static char str[3] = {0};
  if (vx == -1 || vx == 1) {
    str[0] = (vx == -1 ? 'L' : 'R');
    str[1] = line + '0';
  } else {
    str[0] = (vy == -1 ? 'B' : 'T');
    str[1] = col + '0';
  }
  return str;
}
```
user: 请显示与下面列出的汇编代码相匹配的C语言实现：

```asm
<strlen2>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    %rdi,-0x18(%rbp)
  movl   $0x0,-0x4(%rbp)
  jmp    L0
L2:
  addl   $0x1,-0x4(%rbp)
  addq   $0x1,-0x18(%rbp)
L0:
  mov    -0x18(%rbp),%rax
  movzbl (%rax),%eax
  test   %al,%al
  jne    L2
  mov    -0x4(%rbp),%eax
  pop    %rbp
  ret
```

assistant: ```c
int strlen2(char *s) {
  int n;
  for (n = 0; *s != '\0'; s++)
    n++;
  return n;
}
```
user: Demonstrate the C code that generates the assembly output below:

```asm
<strlen2>:
  endbr64
  cmpb   $0x0,(%rdi)
  je     L28
  mov    %rdi,%rax
  mov    $0x1,%edx
  sub    %edi,%edx
L14:
  lea    (%rdx,%rax,1),%ecx
  add    $0x1,%rax
  cmpb   $0x0,(%rax)
  jne    L14
L2:
  mov    %ecx,%eax
  ret
L28:
  mov    $0x0,%ecx
  jmp    L2
```

assistant: ```c
int strlen2(char *s) {
  int n;
  for (n = 0; *s != '\0'; s++)
    n++;
  return n;
}
```
user: 提供的汇编代码用C语言表示会是什么样子:

```asm
<strlen2>:
  endbr64
  cmpb   $0x0,(%rdi)
  je     L6
  mov    $0x1,%eax
  sub    %edi,%eax
L17:
  lea    (%rax,%rdi,1),%r8d
  add    $0x1,%rdi
  cmpb   $0x0,(%rdi)
  jne    L17
  mov    %r8d,%eax
  ret
  nopl   0x0(%rax)
L6:
  xor    %r8d,%r8d
  mov    %r8d,%eax
  ret
```

assistant: ```c
int strlen2(char *s) {
  int n;
  for (n = 0; *s != '\0'; s++)
    n++;
  return n;
}
```
user: 这段汇编代码用C语言表示是什么样的：

```asm
<strlen2>:
  endbr64
  cmpb   $0x0,(%rdi)
  je     L13
  mov    $0x1,%eax
  sub    %edi,%eax
L1:
  lea    (%rax,%rdi,1),%r8d
  add    $0x1,%rdi
  cmpb   $0x0,(%rdi)
  jne    L1
  mov    %r8d,%eax
  ret
  nopl   0x0(%rax)
L13:
  xor    %r8d,%r8d
  mov    %r8d,%eax
  ret
```

assistant: ```c
int strlen2(char *s) {
  int n;
  for (n = 0; *s != '\0'; s++)
    n++;
  return n;
}
```
user: 下面的汇编指令对应的C源代码是什么:

```asm
<TimerValueGet64>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x30,%rsp
  mov    %rdi,-0x28(%rbp)
  mov    -0x28(%rbp),%rax
  mov    %rax,%rdi
  call   <_TimerBaseValid@plt>
  mov    %eax,%edi
  call   <ASSERT@plt>
L4:
  mov    -0x28(%rbp),%rax
  add    $0x4c,%rax
  mov    (%rax),%rax
  mov    %rax,-0x18(%rbp)
  mov    -0x28(%rbp),%rax
  add    $0x48,%rax
  mov    (%rax),%rax
  mov    %rax,-0x10(%rbp)
  mov    -0x28(%rbp),%rax
  add    $0x4c,%rax
  mov    (%rax),%rax
  mov    %rax,-0x8(%rbp)
  mov    -0x18(%rbp),%rax
  cmp    -0x8(%rbp),%rax
  jne    L4
  mov    -0x18(%rbp),%rax
  mov    %eax,%edx
  mov    $0x20,%eax
  mov    %eax,%ecx
  shl    %cl,%edx
  mov    -0x10(%rbp),%rax
  or     %edx,%eax
  leave
  ret
```

assistant: ```c
uint64_t TimerValueGet64(uint32_t ui32Base) {
  uint32_t ui32High1, ui32High2, ui32Low;
  ASSERT(_TimerBaseValid(ui32Base));
  do {
    ui32High1 = (*((volatile uint32_t *)(ui32Base + 0x0000004C)));
    ui32Low = (*((volatile uint32_t *)(ui32Base + 0x00000048)));
    ui32High2 = (*((volatile uint32_t *)(ui32Base + 0x0000004C)));
  } while (ui32High1 != ui32High2);
  return (((uint64_t)ui32High1 << 32) | (uint64_t)ui32Low);
}
```
user: Demonstrate the C code that generates the assembly output below:

```asm
<TimerValueGet64>:
  endbr64
  push   %rbx
  mov    %rdi,%rbx
  call   <_TimerBaseValid@plt>
  mov    %eax,%edi
  call   <ASSERT@plt>
L3:
  mov    0x4c(%rbx),%rcx
  mov    0x48(%rbx),%rax
  mov    0x4c(%rbx),%rdx
  cmp    %rdx,%rcx
  jne    L3
  pop    %rbx
  ret
```

assistant: ```c
uint64_t TimerValueGet64(uint32_t ui32Base) {
  uint32_t ui32High1, ui32High2, ui32Low;
  ASSERT(_TimerBaseValid(ui32Base));
  do {
    ui32High1 = (*((volatile uint32_t *)(ui32Base + 0x0000004C)));
    ui32Low = (*((volatile uint32_t *)(ui32Base + 0x00000048)));
    ui32High2 = (*((volatile uint32_t *)(ui32Base + 0x0000004C)));
  } while (ui32High1 != ui32High2);
  return (((uint64_t)ui32High1 << 32) | (uint64_t)ui32Low);
}
```
user: What is the c source code of the assembly code below:

```asm
<TimerValueGet64>:
  endbr64
  push   %rbx
  mov    %rdi,%rbx
  call   <_TimerBaseValid@plt>
  mov    %eax,%edi
  call   <ASSERT@plt>
  lea    0x4c(%rbx),%rdx
  lea    0x48(%rbx),%rdi
  nopl   0x0(%rax)
L5:
  mov    (%rdx),%rsi
  mov    (%rdi),%rax
  mov    (%rdx),%rcx
  cmp    %rcx,%rsi
  jne    L5
  pop    %rbx
  ret
```

assistant: ```c
uint64_t TimerValueGet64(uint32_t ui32Base) {
  uint32_t ui32High1, ui32High2, ui32Low;
  ASSERT(_TimerBaseValid(ui32Base));
  do {
    ui32High1 = (*((volatile uint32_t *)(ui32Base + 0x0000004C)));
    ui32Low = (*((volatile uint32_t *)(ui32Base + 0x00000048)));
    ui32High2 = (*((volatile uint32_t *)(ui32Base + 0x0000004C)));
  } while (ui32High1 != ui32High2);
  return (((uint64_t)ui32High1 << 32) | (uint64_t)ui32Low);
}
```
user: Demonstrate the C code that generates the assembly output below:

```asm
<TimerValueGet64>:
  endbr64
  push   %rbx
  mov    %rdi,%rbx
  call   <_TimerBaseValid@plt>
  mov    %eax,%edi
  call   <ASSERT@plt>
  lea    0x4c(%rbx),%rdx
  lea    0x48(%rbx),%rdi
  nopl   0x0(%rax)
L2:
  mov    (%rdx),%rsi
  mov    (%rdi),%rax
  mov    (%rdx),%rcx
  cmp    %rcx,%rsi
  jne    L2
  pop    %rbx
  ret
```

assistant: ```c
uint64_t TimerValueGet64(uint32_t ui32Base) {
  uint32_t ui32High1, ui32High2, ui32Low;
  ASSERT(_TimerBaseValid(ui32Base));
  do {
    ui32High1 = (*((volatile uint32_t *)(ui32Base + 0x0000004C)));
    ui32Low = (*((volatile uint32_t *)(ui32Base + 0x00000048)));
    ui32High2 = (*((volatile uint32_t *)(ui32Base + 0x0000004C)));
  } while (ui32High1 != ui32High2);
  return (((uint64_t)ui32High1 << 32) | (uint64_t)ui32Low);
}
```
user: 这段汇编代码用C语言表示是什么样的？

```asm
<lengthOfLastWord>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x20,%rsp
  mov    %rdi,-0x18(%rbp)
  movl   $0x0,-0x4(%rbp)
  cmpq   $0x0,-0x18(%rbp)
  jne    L10
  mov    $0x0,%eax
  jmp    L5
L78:
  addl   $0x1,-0x4(%rbp)
L10:
  mov    -0x4(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  mov    %eax,%edi
  call   <isalpha@plt>
  test   %rax,%rax
  jne    L78
  mov    -0x4(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  cmp    $0x20,%al
  je     L78
  subl   $0x1,-0x4(%rbp)
  jmp    L37
L61:
  subl   $0x1,-0x4(%rbp)
L37:
  mov    -0x4(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  mov    %eax,%edi
  call   <isalpha@plt>
  test   %rax,%rax
  je     L61
  mov    -0x4(%rbp),%eax
  mov    %eax,-0x8(%rbp)
  jmp    L68
L9:
  subl   $0x1,-0x8(%rbp)
L68:
  mov    -0x8(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  cmp    $0x20,%al
  je     L7
  cmpl   $0x0,-0x8(%rbp)
  jns    L9
L7:
  mov    -0x4(%rbp),%eax
  sub    -0x8(%rbp),%eax
L5:
  leave
  ret
```

assistant: ```c
int lengthOfLastWord(char *s) {
  int start;
  int end;
  end = 0;
  if (!s) {
    return 0;
  }
  while (isalpha(s[end]) || (s[end] == ' ')) {
    end++;
  }
  end--;
  while (!isalpha(s[end])) {
    end--;
  }
  start = end;
  while ((s[start] != ' ') && (start >= 0)) {
    start--;
  }
  return end - start;
}
```
user: 请将这段汇编代码片段转换成等效的C代码：

```asm
<lengthOfLastWord>:
  endbr64
  test   %rdi,%rdi
  je     L15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  mov    %rdi,%r12
  mov    $0x0,%ebx
  jmp    L89
L78:
  add    $0x1,%rbx
L89:
  movsbl (%r12,%rbx,1),%edi
  call   <isalpha@plt>
  test   %rax,%rax
  jne    L78
  cmpb   $0x20,(%r12,%rbx,1)
  je     L78
  lea    -0x1(%rbx),%eax
  cltq
  add    %r12,%rax
  mov    %rax,%rbp
  sub    $0x1,%ebx
  sub    %eax,%ebx
L9:
  lea    (%rbx,%rbp,1),%r13d
  mov    %rbp,%r14
  movsbl 0x0(%rbp),%edi
  call   <isalpha@plt>
  sub    $0x1,%rbp
  test   %rax,%rax
  je     L9
  cmpb   $0x20,(%r14)
  je     L70
  test   %r13d,%r13d
  js     L70
  lea    -0x1(%r13),%eax
  cltq
L19:
  mov    %eax,%esi
  cmpb   $0x20,(%r12,%rax,1)
  setne  %cl
  mov    %eax,%edx
  not    %edx
  shr    $0x1f,%edx
  sub    $0x1,%rax
  test   %dl,%cl
  jne    L19
L46:
  mov    %r13d,%eax
  sub    %esi,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  ret
L70:
  mov    %r13d,%esi
  jmp    L46
L15:
  mov    $0x0,%eax
  ret
```

assistant: ```c
int lengthOfLastWord(char *s) {
  int start;
  int end;
  end = 0;
  if (!s) {
    return 0;
  }
  while (isalpha(s[end]) || (s[end] == ' ')) {
    end++;
  }
  end--;
  while (!isalpha(s[end])) {
    end--;
  }
  start = end;
  while ((s[start] != ' ') && (start >= 0)) {
    start--;
  }
  return end - start;
}
```
user: What is the c source code of the assembly code below:

```asm
<lengthOfLastWord>:
  endbr64
  test   %rdi,%rdi
  je     L0
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  mov    %rdi,%rbp
  push   %rbx
  xor    %ebx,%ebx
  jmp    L69
  nopl   0x0(%rax)
L51:
  add    $0x1,%rbx
L69:
  movsbl 0x0(%rbp,%rbx,1),%edi
  mov    %ebx,%r13d
  call   <isalpha@plt>
  test   %rax,%rax
  jne    L51
  cmpb   $0x20,0x0(%rbp,%rbx,1)
  je     L51
  sub    $0x1,%r13d
  movslq %r13d,%rbx
  add    %rbp,%rbx
  sub    %ebx,%r13d
  nopw   0x0(%rax,%rax,1)
L87:
  movsbl (%rbx),%edi
  lea    0x0(%r13,%rbx,1),%r12d
  mov    %rbx,%r14
  sub    $0x1,%rbx
  call   <isalpha@plt>
  test   %rax,%rax
  je     L87
  cmpb   $0x20,(%r14)
  je     L61
  test   %r12d,%r12d
  js     L61
  lea    -0x1(%r12),%eax
  cltq
  nopl   0x0(%rax,%rax,1)
L71:
  mov    %eax,%edx
  cmpb   $0x20,0x0(%rbp,%rax,1)
  mov    %eax,%esi
  not    %edx
  setne  %cl
  sub    $0x1,%rax
  shr    $0x1f,%edx
  test   %dl,%cl
  jne    L71
  mov    %r12d,%eax
  sub    %esi,%eax
L78:
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  ret
  nopw   0x0(%rax,%rax,1)
L0:
  xor    %eax,%eax
  ret
L61:
  xor    %eax,%eax
  jmp    L78
```

assistant: ```c
int lengthOfLastWord(char *s) {
  int start;
  int end;
  end = 0;
  if (!s) {
    return 0;
  }
  while (isalpha(s[end]) || (s[end] == ' ')) {
    end++;
  }
  end--;
  while (!isalpha(s[end])) {
    end--;
  }
  start = end;
  while ((s[start] != ' ') && (start >= 0)) {
    start--;
  }
  return end - start;
}
```
user: Please show me the C implementation that matches the assembly code listed below:

```asm
<lengthOfLastWord>:
  endbr64
  test   %rdi,%rdi
  je     L30
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  mov    %rdi,%rbp
  push   %rbx
  xor    %ebx,%ebx
  jmp    L79
  nopl   0x0(%rax)
L76:
  add    $0x1,%rbx
L79:
  movsbl 0x0(%rbp,%rbx,1),%edi
  mov    %ebx,%r13d
  call   <isalpha@plt>
  test   %rax,%rax
  jne    L76
  cmpb   $0x20,0x0(%rbp,%rbx,1)
  je     L76
  sub    $0x1,%r13d
  movslq %r13d,%rbx
  add    %rbp,%rbx
  sub    %ebx,%r13d
  nopw   0x0(%rax,%rax,1)
L65:
  movsbl (%rbx),%edi
  lea    0x0(%r13,%rbx,1),%r12d
  mov    %rbx,%r14
  sub    $0x1,%rbx
  call   <isalpha@plt>
  test   %rax,%rax
  je     L65
  cmpb   $0x20,(%r14)
  je     L34
  test   %r12d,%r12d
  js     L34
  lea    -0x1(%r12),%eax
  cltq
  nopl   0x0(%rax,%rax,1)
L78:
  mov    %eax,%edx
  cmpb   $0x20,0x0(%rbp,%rax,1)
  mov    %eax,%esi
  not    %edx
  setne  %cl
  sub    $0x1,%rax
  shr    $0x1f,%edx
  test   %dl,%cl
  jne    L78
  mov    %r12d,%eax
  sub    %esi,%eax
L17:
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  ret
  nopw   0x0(%rax,%rax,1)
L30:
  xor    %eax,%eax
  ret
L34:
  xor    %eax,%eax
  jmp    L17
```

assistant: ```c
int lengthOfLastWord(char *s) {
  int start;
  int end;
  end = 0;
  if (!s) {
    return 0;
  }
  while (isalpha(s[end]) || (s[end] == ' ')) {
    end++;
  }
  end--;
  while (!isalpha(s[end])) {
    end--;
  }
  start = end;
  while ((s[start] != ' ') && (start >= 0)) {
    start--;
  }
  return end - start;
}
```