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

```asm
<timer_expire_handler>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x20,%rsp
  mov    %rdi,-0x8(%rbp)
  mov    %rsi,-0x10(%rbp)
  mov    %rdx,-0x18(%rbp)
  mov    %rcx,-0x20(%rbp)
  mov    -0x8(%rbp),%rax
  lea    D18(%rip),%rdx
  mov    %rdx,%rsi
  mov    %rax,%rdi
  call   <trace_seq_printf@plt>
  mov    -0x10(%rbp),%rcx
  mov    -0x18(%rbp),%rdx
  mov    -0x8(%rbp),%rax
  mov    $0x0,%r9d
  mov    %rcx,%r8
  lea    D90(%rip),%rcx
  lea    D47(%rip),%rsi
  mov    %rax,%rdi
  call   <pevent_print_num_field@plt>
  cmp    $0xffffffff,%eax
  jne    L3
  mov    -0x10(%rbp),%rcx
  mov    -0x18(%rbp),%rdx
  mov    -0x8(%rbp),%rax
  mov    $0x1,%r9d
  mov    %rcx,%r8
  lea    D77(%rip),%rcx
  lea    D47(%rip),%rsi
  mov    %rax,%rdi
  call   <pevent_print_num_field@plt>
L3:
  mov    -0x8(%rbp),%rax
  lea    D65(%rip),%rdx
  mov    %rdx,%rsi
  mov    %rax,%rdi
  call   <trace_seq_printf@plt>
  mov    -0x10(%rbp),%rcx
  mov    -0x18(%rbp),%rdx
  mov    -0x8(%rbp),%rax
  mov    $0x1,%r9d
  mov    %rcx,%r8
  lea    D89(%rip),%rcx
  lea    D0(%rip),%rsi
  mov    %rax,%rdi
  call   <pevent_print_num_field@plt>
  mov    -0x10(%rbp),%rcx
  mov    -0x18(%rbp),%rdx
  mov    -0x8(%rbp),%rax
  mov    $0x0,%r9d
  mov    %rcx,%r8
  lea    D44(%rip),%rcx
  lea    D99(%rip),%rsi
  mov    %rax,%rdi
  call   <pevent_print_func_field@plt>
  mov    $0x0,%eax
  leave
  ret
```

tool_calls: name: disassemble_data
arguments: tag: D18
type_guessed: string
name: disassemble_data
arguments: tag: D90
type_guessed: string
name: disassemble_data
arguments: tag: D47
type_guessed: string
name: disassemble_data
arguments: tag: D77
type_guessed: string
name: disassemble_data
arguments: tag: D65
type_guessed: string
name: disassemble_data
arguments: tag: D89
type_guessed: string
name: disassemble_data
arguments: tag: D0
type_guessed: string
name: disassemble_data
arguments: tag: D44
type_guessed: string
name: disassemble_data
arguments: tag: D99
type_guessed: string

tool: D18: hrtimer=

tool: D90: timer

tool: D47: 0x%llx

tool: D77: hrtimer

tool: D65:  now=

tool: D89: now

tool: D0: %llu

tool: D44: function

tool: D99:  function=%s

assistant: ```c
int timer_expire_handler(struct trace_seq *s, struct pevent_record *record, struct event_format *event, void *context) {
  trace_seq_printf(s, "hrtimer=");
  if (pevent_print_num_field(s, "0x%llx", event, "timer", record, 0) == -1)
    pevent_print_num_field(s, "0x%llx", event, "hrtimer", record, 1);
  trace_seq_printf(s, " now=");
  pevent_print_num_field(s, "%llu", event, "now", record, 1);
  pevent_print_func_field(s, " function=%s", event, "function", record, 0);
  return 0;
}
```
user: 请从给定的汇编指令推导出C源代码：

```asm
<timer_expire_handler>:
  endbr64
  push   %r12
  push   %rbp
  push   %rbx
  mov    %rdi,%rbx
  mov    %rsi,%r12
  mov    %rdx,%rbp
  lea    D98(%rip),%rsi
  call   <trace_seq_printf@plt>
  mov    $0x0,%r9d
  mov    %r12,%r8
  lea    D76(%rip),%rcx
  mov    %rbp,%rdx
  lea    D83(%rip),%rsi
  mov    %rbx,%rdi
  call   <pevent_print_num_field@plt>
  cmp    $0xffffffff,%eax
  je     L12
L15:
  lea    D47(%rip),%rsi
  mov    %rbx,%rdi
  call   <trace_seq_printf@plt>
  mov    $0x1,%r9d
  mov    %r12,%r8
  lea    D42(%rip),%rcx
  mov    %rbp,%rdx
  lea    D90(%rip),%rsi
  mov    %rbx,%rdi
  call   <pevent_print_num_field@plt>
  mov    $0x0,%r9d
  mov    %r12,%r8
  lea    D53(%rip),%rcx
  mov    %rbp,%rdx
  lea    D79(%rip),%rsi
  mov    %rbx,%rdi
  call   <pevent_print_func_field@plt>
  mov    $0x0,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  ret
L12:
  mov    $0x1,%r9d
  mov    %r12,%r8
  lea    D45(%rip),%rcx
  mov    %rbp,%rdx
  lea    D83(%rip),%rsi
  mov    %rbx,%rdi
  call   <pevent_print_num_field@plt>
  jmp    L15
```

tool_calls: name: read_data
arguments: data_label: D98
type_guessed: string
name: read_data
arguments: data_label: D76
type_guessed: string
name: read_data
arguments: data_label: D83
type_guessed: string
name: read_data
arguments: data_label: D47
type_guessed: string
name: read_data
arguments: data_label: D42
type_guessed: string
name: read_data
arguments: data_label: D90
type_guessed: string
name: read_data
arguments: data_label: D53
type_guessed: string
name: read_data
arguments: data_label: D79
type_guessed: string
name: read_data
arguments: data_label: D45
type_guessed: string

tool: D98: hrtimer=

tool: D76: timer

tool: D83: 0x%llx

tool: D47:  now=

tool: D42: now

tool: D90: %llu

tool: D53: function

tool: D79:  function=%s

tool: D45: hrtimer

assistant: ```c
int timer_expire_handler(struct trace_seq *s, struct pevent_record *record, struct event_format *event, void *context) {
  trace_seq_printf(s, "hrtimer=");
  if (pevent_print_num_field(s, "0x%llx", event, "timer", record, 0) == -1)
    pevent_print_num_field(s, "0x%llx", event, "hrtimer", record, 1);
  trace_seq_printf(s, " now=");
  pevent_print_num_field(s, "%llu", event, "now", record, 1);
  pevent_print_func_field(s, " function=%s", event, "function", record, 0);
  return 0;
}
```
user: 这段汇编代码用C语言表示是什么样的:

```asm
<timer_expire_handler>:
  endbr64
  push   %r13
  lea    D15(%rip),%r13
  push   %r12
  mov    %rdx,%r12
  push   %rbp
  mov    %rdi,%rbp
  push   %rbx
  mov    %rsi,%rbx
  lea    D87(%rip),%rsi
  sub    $0x8,%rsp
  call   <trace_seq_printf@plt>
  xor    %r9d,%r9d
  mov    %rbx,%r8
  mov    %r12,%rdx
  lea    D85(%rip),%rcx
  mov    %r13,%rsi
  mov    %rbp,%rdi
  call   <pevent_print_num_field@plt>
  cmp    $0xffffffff,%eax
  je     L17
L13:
  mov    %rbp,%rdi
  lea    D19(%rip),%rsi
  call   <trace_seq_printf@plt>
  mov    %rbx,%r8
  mov    %r12,%rdx
  mov    %rbp,%rdi
  mov    $0x1,%r9d
  lea    D81(%rip),%rcx
  lea    D82(%rip),%rsi
  call   <pevent_print_num_field@plt>
  mov    %rbx,%r8
  mov    %r12,%rdx
  mov    %rbp,%rdi
  xor    %r9d,%r9d
  lea    D68(%rip),%rcx
  lea    D23(%rip),%rsi
  call   <pevent_print_func_field@plt>
  add    $0x8,%rsp
  xor    %eax,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
  nopw   0x0(%rax,%rax,1)
L17:
  mov    $0x1,%r9d
  mov    %rbx,%r8
  mov    %r12,%rdx
  mov    %r13,%rsi
  lea    D84(%rip),%rcx
  mov    %rbp,%rdi
  call   <pevent_print_num_field@plt>
  jmp    L13
```

tool_calls: name: parse_data
arguments: data_label: D15
type: string
name: parse_data
arguments: data_label: D87
type: string
name: parse_data
arguments: data_label: D85
type: string
name: parse_data
arguments: data_label: D19
type: string
name: parse_data
arguments: data_label: D81
type: string
name: parse_data
arguments: data_label: D82
type: string
name: parse_data
arguments: data_label: D68
type: string
name: parse_data
arguments: data_label: D23
type: string
name: parse_data
arguments: data_label: D84
type: string

tool: D15: 0x%llx

tool: D87: hrtimer=

tool: D85: timer

tool: D19:  now=

tool: D81: now

tool: D82: %llu

tool: D68: function

tool: D23:  function=%s

tool: D84: hrtimer

assistant: ```c
int timer_expire_handler(struct trace_seq *s, struct pevent_record *record, struct event_format *event, void *context) {
  trace_seq_printf(s, "hrtimer=");
  if (pevent_print_num_field(s, "0x%llx", event, "timer", record, 0) == -1)
    pevent_print_num_field(s, "0x%llx", event, "hrtimer", record, 1);
  trace_seq_printf(s, " now=");
  pevent_print_num_field(s, "%llu", event, "now", record, 1);
  pevent_print_func_field(s, " function=%s", event, "function", record, 0);
  return 0;
}
```
user: Translate the below assembly code into C programming language:

```asm
<timer_expire_handler>:
  endbr64
  push   %r13
  lea    D50(%rip),%r13
  push   %r12
  mov    %rdx,%r12
  push   %rbp
  mov    %rdi,%rbp
  push   %rbx
  mov    %rsi,%rbx
  lea    D53(%rip),%rsi
  sub    $0x8,%rsp
  call   <trace_seq_printf@plt>
  xor    %r9d,%r9d
  mov    %rbx,%r8
  mov    %r12,%rdx
  lea    D21(%rip),%rcx
  mov    %r13,%rsi
  mov    %rbp,%rdi
  call   <pevent_print_num_field@plt>
  cmp    $0xffffffff,%eax
  je     L1
L13:
  mov    %rbp,%rdi
  lea    D29(%rip),%rsi
  call   <trace_seq_printf@plt>
  mov    %rbx,%r8
  mov    %r12,%rdx
  mov    %rbp,%rdi
  mov    $0x1,%r9d
  lea    D12(%rip),%rcx
  lea    D30(%rip),%rsi
  call   <pevent_print_num_field@plt>
  mov    %rbx,%r8
  mov    %r12,%rdx
  mov    %rbp,%rdi
  xor    %r9d,%r9d
  lea    D23(%rip),%rcx
  lea    D69(%rip),%rsi
  call   <pevent_print_func_field@plt>
  add    $0x8,%rsp
  xor    %eax,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
  nopw   0x0(%rax,%rax,1)
L1:
  mov    $0x1,%r9d
  mov    %rbx,%r8
  mov    %r12,%rdx
  mov    %r13,%rsi
  lea    D80(%rip),%rcx
  mov    %rbp,%rdi
  call   <pevent_print_num_field@plt>
  jmp    L13
```

tool_calls: name: unpack_data
arguments: label: D50
type_guessed: string
name: unpack_data
arguments: label: D53
type_guessed: string
name: unpack_data
arguments: label: D21
type_guessed: string
name: unpack_data
arguments: label: D29
type_guessed: string
name: unpack_data
arguments: label: D12
type_guessed: string
name: unpack_data
arguments: label: D30
type_guessed: string
name: unpack_data
arguments: label: D23
type_guessed: string
name: unpack_data
arguments: label: D69
type_guessed: string
name: unpack_data
arguments: label: D80
type_guessed: string

tool: D50: 0x%llx

tool: D53: hrtimer=

tool: D21: timer

tool: D29:  now=

tool: D12: now

tool: D30: %llu

tool: D23: function

tool: D69:  function=%s

tool: D80: hrtimer

assistant: ```c
int timer_expire_handler(struct trace_seq *s, struct pevent_record *record, struct event_format *event, void *context) {
  trace_seq_printf(s, "hrtimer=");
  if (pevent_print_num_field(s, "0x%llx", event, "timer", record, 0) == -1)
    pevent_print_num_field(s, "0x%llx", event, "hrtimer", record, 1);
  trace_seq_printf(s, " now=");
  pevent_print_num_field(s, "%llu", event, "now", record, 1);
  pevent_print_func_field(s, " function=%s", event, "function", record, 0);
  return 0;
}
```
user: 请将这段汇编代码片段转换成等效的C代码：

```asm
<initChannelArray>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  push   %rbx
  sub    $0x18,%rsp
  mov    $0x28,%edi
  call   <malloc@plt>
  mov    %rax,-0x18(%rbp)
  movl   $0x0,-0x1c(%rbp)
  jmp    L12
L5:
  mov    -0x1c(%rbp),%eax
  lea    0x0(,%rax,8),%rdx
  mov    -0x18(%rbp),%rax
  lea    (%rdx,%rax,1),%rbx
  mov    $0x400,%edi
  call   <malloc@plt>
  mov    %rax,(%rbx)
  addl   $0x1,-0x1c(%rbp)
L12:
  cmpl   $0x4,-0x1c(%rbp)
  jbe    L5
  mov    -0x18(%rbp),%rax
  mov    -0x8(%rbp),%rbx
  leave
  ret
```

assistant: ```c
char **initChannelArray(void) {
  char **ret = malloc(5 * sizeof(char *));
  for (unsigned i = 0; i < 5; ++i)
    ret[i] = malloc(1024 * sizeof(char));
  return ret;
}
```
user: 请从给定的汇编指令推导出C源代码:

```asm
<initChannelArray>:
  endbr64
  push   %r12
  push   %rbp
  push   %rbx
  mov    $0x28,%edi
  call   <malloc@plt>
  mov    %rax,%r12
  mov    %rax,%rbx
  lea    0x28(%rax),%rbp
L1:
  mov    $0x400,%edi
  call   <malloc@plt>
  mov    %rax,(%rbx)
  add    $0x8,%rbx
  cmp    %rbp,%rbx
  jne    L1
  mov    %r12,%rax
  pop    %rbx
  pop    %rbp
  pop    %r12
  ret
```

assistant: ```c
char **initChannelArray(void) {
  char **ret = malloc(5 * sizeof(char *));
  for (unsigned i = 0; i < 5; ++i)
    ret[i] = malloc(1024 * sizeof(char));
  return ret;
}
```
user: 下面的汇编指令对应的C源代码是什么:

```asm
<initChannelArray>:
  endbr64
  push   %r12
  mov    $0x28,%edi
  push   %rbp
  push   %rbx
  call   <malloc@plt>
  mov    %rax,%r12
  mov    %rax,%rbx
  lea    0x28(%rax),%rbp
L5:
  mov    $0x400,%edi
  add    $0x8,%rbx
  call   <malloc@plt>
  mov    %rax,-0x8(%rbx)
  cmp    %rbp,%rbx
  jne    L5
  mov    %r12,%rax
  pop    %rbx
  pop    %rbp
  pop    %r12
  ret
```

assistant: ```c
char **initChannelArray(void) {
  char **ret = malloc(5 * sizeof(char *));
  for (unsigned i = 0; i < 5; ++i)
    ret[i] = malloc(1024 * sizeof(char));
  return ret;
}
```
user: 这段汇编代码用C语言表示是什么样的:

```asm
<initChannelArray>:
  endbr64
  push   %r12
  mov    $0x28,%edi
  push   %rbp
  push   %rbx
  call   <malloc@plt>
  mov    %rax,%r12
  mov    %rax,%rbx
  lea    0x28(%rax),%rbp
L5:
  mov    $0x400,%edi
  add    $0x8,%rbx
  call   <malloc@plt>
  mov    %rax,-0x8(%rbx)
  cmp    %rbp,%rbx
  jne    L5
  mov    %r12,%rax
  pop    %rbx
  pop    %rbp
  pop    %r12
  ret
```

assistant: ```c
char **initChannelArray(void) {
  char **ret = malloc(5 * sizeof(char *));
  for (unsigned i = 0; i < 5; ++i)
    ret[i] = malloc(1024 * sizeof(char));
  return ret;
}
```
user: 请从给定的汇编指令推导出C源代码：

```asm
<measure_clock>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x20,%rsp
  mov    %rdi,-0x18(%rbp)
  mov    %esi,-0x1c(%rbp)
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
  mov    -0x18(%rbp),%rax
  mov    %rax,%rsi
  lea    D2(%rip),%rax
  mov    %rax,%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  lea    -0x10(%rbp),%rdx
  mov    -0x1c(%rbp),%eax
  mov    %rdx,%rsi
  mov    %eax,%edi
  call   <clock_getres@plt>
  mov    -0x10(%rbp),%eax
  mov    -0xc(%rbp),%edx
  movslq %edx,%rdx
  mov    %rdx,%rcx
  mov    %eax,%edx
  mov    %rcx,%rsi
  lea    D13(%rip),%rax
  mov    %rax,%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  mov    -0x1c(%rbp),%eax
  mov    %eax,%edi
  call   <clock_overhead@plt>
  nop
  mov    -0x8(%rbp),%rax
  sub    %fs:0x28,%rax
  je     L9
  call   <__stack_chk_fail@plt>
L9:
  leave
  ret
```

tool_calls: name: parse_data
arguments: data_label: D2
type: string
name: parse_data
arguments: data_label: D13
type: string

tool: D2: 
- %s -


tool: D13: clock_getres: %ld seconds | %ld nanoseconds


assistant: ```c
void measure_clock(const char *ctype, clockid_t clock) {
  struct timespec t;
  printf("\n- %s -\n", ctype);
  clock_getres(clock, &t);
  printf("clock_getres: %ld seconds | %ld nanoseconds\n", t.tv_sec, t.tv_nsec);
  clock_overhead(clock);
}
```
user: Demonstrate the C code that generates the assembly output below:

```asm
<measure_clock>:
  endbr64
  push   %rbx
  sub    $0x10,%rsp
  mov    %esi,%ebx
  mov    %fs:0x28,%rax
  mov    %rax,0x8(%rsp)
  xor    %eax,%eax
  mov    %rdi,%rsi
  lea    D16(%rip),%rdi
  call   <printf@plt>
  mov    %rsp,%rsi
  mov    %ebx,%edi
  call   <clock_getres@plt>
  movslq 0x4(%rsp),%rsi
  mov    (%rsp),%edx
  lea    D13(%rip),%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  mov    %ebx,%edi
  call   <clock_overhead@plt>
  mov    0x8(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L0
  add    $0x10,%rsp
  pop    %rbx
  ret
L0:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: disassemble_data
arguments: label: D16
type: string
name: disassemble_data
arguments: label: D13
type: string

tool: D16: 
- %s -


tool: D13: clock_getres: %ld seconds | %ld nanoseconds


assistant: ```c
void measure_clock(const char *ctype, clockid_t clock) {
  struct timespec t;
  printf("\n- %s -\n", ctype);
  clock_getres(clock, &t);
  printf("clock_getres: %ld seconds | %ld nanoseconds\n", t.tv_sec, t.tv_nsec);
  clock_overhead(clock);
}
```
user: Translate the below assembly code into C programming language:

```asm
<measure_clock>:
  endbr64
  push   %rbp
  mov    %esi,%ebp
  mov    %rdi,%rsi
  lea    D18(%rip),%rdi
  sub    $0x10,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x8(%rsp)
  xor    %eax,%eax
  call   <printf@plt>
  mov    %rsp,%rsi
  mov    %ebp,%edi
  call   <clock_getres@plt>
  movslq 0x4(%rsp),%rsi
  mov    (%rsp),%edx
  xor    %eax,%eax
  lea    D7(%rip),%rdi
  call   <printf@plt>
  mov    %ebp,%edi
  call   <clock_overhead@plt>
  mov    0x8(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L3
  add    $0x10,%rsp
  pop    %rbp
  ret
L3:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: extract_symbolic_data
arguments: data_label: D18
type: string
name: extract_symbolic_data
arguments: data_label: D7
type: string

tool: D18: 
- %s -


tool: D7: clock_getres: %ld seconds | %ld nanoseconds


assistant: ```c
void measure_clock(const char *ctype, clockid_t clock) {
  struct timespec t;
  printf("\n- %s -\n", ctype);
  clock_getres(clock, &t);
  printf("clock_getres: %ld seconds | %ld nanoseconds\n", t.tv_sec, t.tv_nsec);
  clock_overhead(clock);
}
```
user: 提供的汇编代码用C语言表示会是什么样子:

```asm
<measure_clock>:
  endbr64
  push   %rbp
  mov    %esi,%ebp
  mov    %rdi,%rsi
  lea    D19(%rip),%rdi
  sub    $0x10,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x8(%rsp)
  xor    %eax,%eax
  call   <printf@plt>
  mov    %rsp,%rsi
  mov    %ebp,%edi
  call   <clock_getres@plt>
  movslq 0x4(%rsp),%rsi
  mov    (%rsp),%edx
  xor    %eax,%eax
  lea    D6(%rip),%rdi
  call   <printf@plt>
  mov    %ebp,%edi
  call   <clock_overhead@plt>
  mov    0x8(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L6
  add    $0x10,%rsp
  pop    %rbp
  ret
L6:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: unpack_data
arguments: data_tag: D19
data_type: string
name: unpack_data
arguments: data_tag: D6
data_type: string

tool: D19: 
- %s -


tool: D6: clock_getres: %ld seconds | %ld nanoseconds


assistant: ```c
void measure_clock(const char *ctype, clockid_t clock) {
  struct timespec t;
  printf("\n- %s -\n", ctype);
  clock_getres(clock, &t);
  printf("clock_getres: %ld seconds | %ld nanoseconds\n", t.tv_sec, t.tv_nsec);
  clock_overhead(clock);
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<gen_TTOU>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    $0x0,%edi
  call   <handle_TTOU@plt>
  mov    $0x0,%eax
  pop    %rbp
  ret
```

assistant: ```c
int gen_TTOU(void) {
  handle_TTOU(0);
  return 0;
}
```
user: 请将以下的汇编代码转换成C语言代码:

```asm
<gen_TTOU>:
  endbr64
  sub    $0x8,%rsp
  mov    $0x0,%edi
  call   <handle_TTOU@plt>
  mov    $0x0,%eax
  add    $0x8,%rsp
  ret
```

assistant: ```c
int gen_TTOU(void) {
  handle_TTOU(0);
  return 0;
}
```
user: 请将以下的汇编代码转换成C语言代码:

```asm
<gen_TTOU>:
  endbr64
  sub    $0x8,%rsp
  xor    %edi,%edi
  call   <handle_TTOU@plt>
  xor    %eax,%eax
  add    $0x8,%rsp
  ret
```

assistant: ```c
int gen_TTOU(void) {
  handle_TTOU(0);
  return 0;
}
```
user: What is the c source code of the assembly code below:

```asm
<gen_TTOU>:
  endbr64
  sub    $0x8,%rsp
  xor    %edi,%edi
  call   <handle_TTOU@plt>
  xor    %eax,%eax
  add    $0x8,%rsp
  ret
```

assistant: ```c
int gen_TTOU(void) {
  handle_TTOU(0);
  return 0;
}
```
user: Please show me the C implementation that matches the assembly code listed below:

```asm
<getc_utf8>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x20,%rsp
  mov    %rdi,-0x18(%rbp)
  movl   $0x0,-0xc(%rbp)
  movl   $0x1,-0x8(%rbp)
  jmp    L91
L157:
  mov    -0x18(%rbp),%rax
  mov    %rax,%rdi
  call   <fgetc@plt>
  mov    %eax,-0x4(%rbp)
  mov    D14(%rip),%rax
  mov    (%rax),%eax
  cmp    %eax,-0x4(%rbp)
  jne    L4
  mov    D14(%rip),%rax
  mov    (%rax),%eax
  jmp    L94
L4:
  mov    -0x4(%rbp),%eax
  mov    %al,-0xd(%rbp)
  movzbl -0xd(%rbp),%eax
  and    $0xfc,%eax
  cmp    $0xfc,%eax
  jne    L69
  movzbl -0xd(%rbp),%eax
  and    $0x1,%eax
  mov    %eax,-0xc(%rbp)
  movl   $0x5,-0x8(%rbp)
  jmp    L91
L69:
  movzbl -0xd(%rbp),%eax
  and    $0xf8,%eax
  cmp    $0xf8,%eax
  jne    L21
  movzbl -0xd(%rbp),%eax
  and    $0x3,%eax
  mov    %eax,-0xc(%rbp)
  movl   $0x4,-0x8(%rbp)
  jmp    L91
L21:
  movzbl -0xd(%rbp),%eax
  and    $0xf0,%eax
  cmp    $0xf0,%eax
  jne    L56
  movzbl -0xd(%rbp),%eax
  and    $0x7,%eax
  mov    %eax,-0xc(%rbp)
  movl   $0x3,-0x8(%rbp)
  jmp    L91
L56:
  movzbl -0xd(%rbp),%eax
  and    $0xe0,%eax
  cmp    $0xe0,%eax
  jne    L83
  movzbl -0xd(%rbp),%eax
  and    $0xf,%eax
  mov    %eax,-0xc(%rbp)
  movl   $0x2,-0x8(%rbp)
  jmp    L91
L83:
  movzbl -0xd(%rbp),%eax
  and    $0xc0,%eax
  cmp    $0xc0,%eax
  jne    L29
  movzbl -0xd(%rbp),%eax
  and    $0x1f,%eax
  mov    %eax,-0xc(%rbp)
  movl   $0x1,-0x8(%rbp)
  jmp    L91
L29:
  movzbl -0xd(%rbp),%eax
  test   %al,%al
  jns    L147
  shll   $0x6,-0xc(%rbp)
  movzbl -0xd(%rbp),%eax
  and    $0x3f,%eax
  or     %eax,-0xc(%rbp)
  jmp    L91
L147:
  movzbl -0xd(%rbp),%eax
  mov    %eax,-0xc(%rbp)
L91:
  mov    -0x8(%rbp),%eax
  lea    -0x1(%rax),%edx
  mov    %edx,-0x8(%rbp)
  test   %eax,%eax
  jne    L157
  mov    -0xc(%rbp),%eax
L94:
  leave
  ret
```

assistant: ```c
int getc_utf8(FILE *fp) {
  unsigned int n = 0;
  int expect = 1;
  while (expect--) {
    int _ch = fgetc(fp);
    if (_ch == EOF)
      return EOF;
    unsigned char ch = (unsigned char)_ch;
    if ((ch & 0b11111100) == 0b11111100) {
      n = ch & 0b00000001;
      expect = 5;
    } else if ((ch & 0b11111000) == 0b11111000) {
      n = ch & 0b00000011;
      expect = 4;
    } else if ((ch & 0b11110000) == 0b11110000) {
      n = ch & 0b00000111;
      expect = 3;
    } else if ((ch & 0b11100000) == 0b11100000) {
      n = ch & 0b00001111;
      expect = 2;
    } else if ((ch & 0b11000000) == 0b11000000) {
      n = ch & 0b00011111;
      expect = 1;
    } else if ((ch & 0b10000000) == 0b10000000) {
      n <<= 6;
      n |= ch & 0b00111111;
    } else {
      n = ch;
    }
  }
  return (int)n;
}
```
user: 请从给定的汇编指令推导出C源代码:

```asm
<getc_utf8>:
  endbr64
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x8,%rsp
  mov    %rdi,%rbp
  mov    $0x0,%ebx
  mov    $0x0,%r12d
  mov    $0x1,%r13d
  jmp    L37
L5:
  and    $0x1,%edx
  mov    %edx,%r12d
  mov    $0x5,%ebx
L103:
  sub    $0x1,%ebx
L37:
  mov    %rbp,%rdi
  call   <fgetc@plt>
  mov    D8(%rip),%rdx
  cmp    %eax,(%rdx)
  je     L125
  movzbl %al,%edx
  mov    %eax,%ecx
  and    $0xfc,%ecx
  cmp    $0xfc,%ecx
  je     L5
  mov    %eax,%ecx
  and    $0xf8,%ecx
  cmp    $0xf8,%ecx
  je     L7
  mov    %eax,%ecx
  and    $0xf0,%ecx
  cmp    $0xf0,%ecx
  je     L137
  mov    %eax,%ecx
  and    $0xe0,%ecx
  cmp    $0xe0,%ecx
  je     L82
  mov    %eax,%ecx
  and    $0xc0,%ecx
  cmp    $0xc0,%ecx
  je     L73
  test   %al,%al
  js     L68
  mov    %edx,%r12d
L70:
  test   %ebx,%ebx
  je     L97
  sub    $0x1,%ebx
  jmp    L37
L7:
  and    $0x3,%edx
  mov    %edx,%r12d
  mov    $0x4,%ebx
  jmp    L103
L137:
  and    $0x7,%edx
  mov    %edx,%r12d
  mov    $0x3,%ebx
  jmp    L103
L82:
  and    $0xf,%edx
  mov    %edx,%r12d
  mov    $0x2,%ebx
  jmp    L103
L73:
  and    $0x1f,%edx
  mov    %edx,%r12d
  mov    %r13d,%ebx
  jmp    L103
L68:
  shl    $0x6,%r12d
  and    $0x3f,%edx
  or     %edx,%r12d
  jmp    L70
L97:
  mov    %r12d,%eax
L125:
  add    $0x8,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
```

assistant: ```c
int getc_utf8(FILE *fp) {
  unsigned int n = 0;
  int expect = 1;
  while (expect--) {
    int _ch = fgetc(fp);
    if (_ch == EOF)
      return EOF;
    unsigned char ch = (unsigned char)_ch;
    if ((ch & 0b11111100) == 0b11111100) {
      n = ch & 0b00000001;
      expect = 5;
    } else if ((ch & 0b11111000) == 0b11111000) {
      n = ch & 0b00000011;
      expect = 4;
    } else if ((ch & 0b11110000) == 0b11110000) {
      n = ch & 0b00000111;
      expect = 3;
    } else if ((ch & 0b11100000) == 0b11100000) {
      n = ch & 0b00001111;
      expect = 2;
    } else if ((ch & 0b11000000) == 0b11000000) {
      n = ch & 0b00011111;
      expect = 1;
    } else if ((ch & 0b10000000) == 0b10000000) {
      n <<= 6;
      n |= ch & 0b00111111;
    } else {
      n = ch;
    }
  }
  return (int)n;
}
```