ylfeng/ReF-Decompile-dataset huggingface dataset:
user: 请将以下的汇编代码转换成C语言代码:

```asm
<xfree_func>:
  endbr64
  push   %rbx
  mov    %rdi,%rbx
  test   %rdi,%rdi
  sete   %dil
  movzbl %dil,%edi
  mov    $0x0,%esi
  call   <__builtin_expect@plt>
  test   %rax,%rax
  jne    L16
L18:
  mov    %rbx,%rdi
  call   <free@plt>
  pop    %rbx
  ret
L16:
  lea    D0(%rip),%rdi
  call   <panic@plt>
  jmp    L18
```

tool_calls: name: disassemble_data
arguments: tag: D0
data_type: string

tool: D0: xfree: NULL pointer given as argument


assistant: ```c
__attribute__((visibility("hidden"))) void xfree_func(void *ptr) {
  if (__builtin_expect(!!(ptr == NULL), 0))
    panic("xfree: NULL pointer given as argument\n");
  free(ptr);
}
```
user: 请将以下的汇编代码转换成C语言代码：

```asm
<xfree_func>:
  endbr64
  test   %rdi,%rdi
  push   %rbp
  mov    %rdi,%rbp
  sete   %dil
  xor    %esi,%esi
  movzbl %dil,%edi
  call   <__builtin_expect@plt>
  test   %rax,%rax
  jne    L7
  mov    %rbp,%rdi
  pop    %rbp
  jmp    1070 <free@plt>
  nopl   0x0(%rax,%rax,1)
L7:
  lea    D1(%rip),%rdi
  call   <panic@plt>
  mov    %rbp,%rdi
  pop    %rbp
  jmp    1070 <free@plt>
```

tool_calls: name: retrieve_data
arguments: label: D1
type_guessed: string

tool: D1: xfree: NULL pointer given as argument


assistant: ```c
__attribute__((visibility("hidden"))) void xfree_func(void *ptr) {
  if (__builtin_expect(!!(ptr == NULL), 0))
    panic("xfree: NULL pointer given as argument\n");
  free(ptr);
}
```
user: 请从给定的汇编指令推导出C源代码：

```asm
<xfree_func>:
  endbr64
  test   %rdi,%rdi
  push   %rbp
  mov    %rdi,%rbp
  sete   %dil
  xor    %esi,%esi
  movzbl %dil,%edi
  call   <__builtin_expect@plt>
  test   %rax,%rax
  jne    L5
  mov    %rbp,%rdi
  pop    %rbp
  jmp    1070 <free@plt>
  nopl   0x0(%rax,%rax,1)
L5:
  lea    D3(%rip),%rdi
  call   <panic@plt>
  mov    %rbp,%rdi
  pop    %rbp
  jmp    1070 <free@plt>
```

tool_calls: name: parse_data
arguments: data_label: D3
datatype: string

tool: D3: xfree: NULL pointer given as argument


assistant: ```c
__attribute__((visibility("hidden"))) void xfree_func(void *ptr) {
  if (__builtin_expect(!!(ptr == NULL), 0))
    panic("xfree: NULL pointer given as argument\n");
  free(ptr);
}
```
user: Demonstrate the C code that generates the assembly output below:

```asm
<fc_nlcsubseq>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x30,%rsp
  mov    %rdi,-0x18(%rbp)
  mov    %rsi,-0x20(%rbp)
  mov    %rdx,-0x28(%rbp)
  mov    %rcx,-0x30(%rbp)
  cmpq   $0x0,-0x20(%rbp)
  js     L11
  cmpq   $0x1000,-0x20(%rbp)
  jg     L11
  cmpq   $0x0,-0x30(%rbp)
  js     L11
  cmpq   $0x1000,-0x30(%rbp)
  jg     L11
  mov    $0x1,%eax
  jmp    L9
L11:
  mov    $0x0,%eax
L9:
  mov    %eax,%edi
  call   <assert@plt>
  cmpq   $0x0,-0x20(%rbp)
  jne    L64
  cmpq   $0x0,-0x30(%rbp)
  jne    L64
  movsd  D3(%rip),%xmm0
  jmp    L20
L64:
  mov    -0x30(%rbp),%rcx
  mov    -0x28(%rbp),%rdx
  mov    -0x20(%rbp),%rsi
  mov    -0x18(%rbp),%rax
  mov    %rax,%rdi
  call   <fc_lcsubseq@plt>
  mov    %rax,-0x8(%rbp)
  pxor   %xmm0,%xmm0
  cvtsi2sdq -0x8(%rbp),%xmm0
  addsd  %xmm0,%xmm0
  mov    -0x20(%rbp),%rdx
  mov    -0x30(%rbp),%rax
  add    %rdx,%rax
  pxor   %xmm2,%xmm2
  cvtsi2sd %rax,%xmm2
  movapd %xmm0,%xmm1
  divsd  %xmm2,%xmm1
  movsd  D3(%rip),%xmm0
  subsd  %xmm1,%xmm0
L20:
  movq   %xmm0,%rax
  movq   %rax,%xmm0
  leave
  ret
```

tool_calls: name: read_data
arguments: data_label: D3
datatype: f64

tool: D3: 1

assistant: ```c
double fc_nlcsubseq(const char32_t *seq1, int32_t len1, const char32_t *seq2, int32_t len2) {
  assert((len1 >= 0 && len1 <= 4096) && (len2 >= 0 && len2 <= 4096));
  if (len1 == 0 && len2 == 0)
    return 1.;
  const int32_t lcs = fc_lcsubseq(seq1, len1, seq2, len2);
  return 1. - (2. * lcs) / (double)(len1 + len2);
}
```
user: Please show me the C implementation that matches the assembly code listed below:

```asm
<fc_nlcsubseq>:
  endbr64
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x8,%rsp
  mov    %rdi,%r12
  mov    %rsi,%rbx
  mov    %rdx,%r13
  mov    %rcx,%rbp
  cmp    $0x1000,%rsi
  setbe  %al
  cmp    $0x1000,%rcx
  setbe  %dil
  movzbl %dil,%edi
  and    %eax,%edi
  call   <assert@plt>
  movsd  D18(%rip),%xmm0
  mov    %rbx,%rax
  or     %rbp,%rax
  jne    L13
L17:
  add    $0x8,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
L13:
  mov    %rbp,%rcx
  mov    %r13,%rdx
  mov    %rbx,%rsi
  mov    %r12,%rdi
  call   <fc_lcsubseq@plt>
  pxor   %xmm0,%xmm0
  cvtsi2sd %rax,%xmm0
  addsd  %xmm0,%xmm0
  add    %rbp,%rbx
  pxor   %xmm2,%xmm2
  cvtsi2sd %rbx,%xmm2
  movapd %xmm0,%xmm1
  divsd  %xmm2,%xmm1
  movsd  D18(%rip),%xmm0
  subsd  %xmm1,%xmm0
  jmp    L17
```

tool_calls: name: parse_data
arguments: label: D18
datatype: f64

tool: D18: 1

assistant: ```c
double fc_nlcsubseq(const char32_t *seq1, int32_t len1, const char32_t *seq2, int32_t len2) {
  assert((len1 >= 0 && len1 <= 4096) && (len2 >= 0 && len2 <= 4096));
  if (len1 == 0 && len2 == 0)
    return 1.;
  const int32_t lcs = fc_lcsubseq(seq1, len1, seq2, len2);
  return 1. - (2. * lcs) / (double)(len1 + len2);
}
```
user: 请将以下的汇编代码转换成C语言代码:

```asm
<fc_nlcsubseq>:
  endbr64
  push   %r13
  mov    %rdx,%r13
  push   %r12
  mov    %rdi,%r12
  push   %rbp
  mov    %rcx,%rbp
  push   %rbx
  mov    %rsi,%rbx
  sub    $0x18,%rsp
  cmp    $0x1000,%rsi
  setbe  %al
  xor    %edi,%edi
  cmp    $0x1000,%rcx
  setbe  %dil
  and    %eax,%edi
  call   <assert@plt>
  mov    %rbx,%rax
  movsd  D3(%rip),%xmm1
  or     %rbp,%rax
  je     L3
  mov    %rbx,%rsi
  mov    %rbp,%rcx
  mov    %r13,%rdx
  mov    %r12,%rdi
  movsd  %xmm1,0x8(%rsp)
  add    %rbp,%rbx
  call   <fc_lcsubseq@plt>
  pxor   %xmm0,%xmm0
  pxor   %xmm2,%xmm2
  movsd  0x8(%rsp),%xmm1
  cvtsi2sd %rax,%xmm0
  cvtsi2sd %rbx,%xmm2
  addsd  %xmm0,%xmm0
  divsd  %xmm2,%xmm0
  subsd  %xmm0,%xmm1
L3:
  add    $0x18,%rsp
  movapd %xmm1,%xmm0
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
```

tool_calls: name: extract_symbolic_data
arguments: label: D3
data_type: f64

tool: D3: 1

assistant: ```c
double fc_nlcsubseq(const char32_t *seq1, int32_t len1, const char32_t *seq2, int32_t len2) {
  assert((len1 >= 0 && len1 <= 4096) && (len2 >= 0 && len2 <= 4096));
  if (len1 == 0 && len2 == 0)
    return 1.;
  const int32_t lcs = fc_lcsubseq(seq1, len1, seq2, len2);
  return 1. - (2. * lcs) / (double)(len1 + len2);
}
```
user: 下面的汇编指令对应的C源代码是什么:

```asm
<fc_nlcsubseq>:
  endbr64
  push   %r13
  mov    %rdx,%r13
  push   %r12
  mov    %rdi,%r12
  push   %rbp
  mov    %rcx,%rbp
  push   %rbx
  mov    %rsi,%rbx
  sub    $0x18,%rsp
  cmp    $0x1000,%rsi
  setbe  %al
  xor    %edi,%edi
  cmp    $0x1000,%rcx
  setbe  %dil
  and    %eax,%edi
  call   <assert@plt>
  mov    %rbx,%rax
  movsd  D0(%rip),%xmm1
  or     %rbp,%rax
  je     L0
  mov    %rbx,%rsi
  mov    %rbp,%rcx
  mov    %r13,%rdx
  mov    %r12,%rdi
  movsd  %xmm1,0x8(%rsp)
  add    %rbp,%rbx
  call   <fc_lcsubseq@plt>
  pxor   %xmm0,%xmm0
  pxor   %xmm2,%xmm2
  movsd  0x8(%rsp),%xmm1
  cvtsi2sd %rax,%xmm0
  cvtsi2sd %rbx,%xmm2
  addsd  %xmm0,%xmm0
  divsd  %xmm2,%xmm0
  subsd  %xmm0,%xmm1
L0:
  add    $0x18,%rsp
  movapd %xmm1,%xmm0
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
```

tool_calls: name: disassemble_data
arguments: data_label: D0
type_infered: f64

tool: D0: 1

assistant: ```c
double fc_nlcsubseq(const char32_t *seq1, int32_t len1, const char32_t *seq2, int32_t len2) {
  assert((len1 >= 0 && len1 <= 4096) && (len2 >= 0 && len2 <= 4096));
  if (len1 == 0 && len2 == 0)
    return 1.;
  const int32_t lcs = fc_lcsubseq(seq1, len1, seq2, len2);
  return 1. - (2. * lcs) / (double)(len1 + len2);
}
```
user: 下面的汇编指令对应的C源代码是什么:

```asm
<print_version>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  lea    D30(%rip),%rax
  mov    %rax,%rsi
  lea    D23(%rip),%rax
  mov    %rax,%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  lea    D14(%rip),%rax
  mov    %rax,%rdi
  call   <puts@plt>
  lea    D27(%rip),%rax
  mov    %rax,%rdi
  call   <puts@plt>
  nop
  pop    %rbp
  ret
```

tool_calls: name: extract_symbolic_data
arguments: data_tag: D30
type_guessed: string
name: extract_symbolic_data
arguments: data_tag: D23
type_guessed: string
name: extract_symbolic_data
arguments: data_tag: D14
type_guessed: string
name: extract_symbolic_data
arguments: data_tag: D27
type_guessed: string

tool: D30: 1.1

tool: D23: cbmem v%s -- 

tool: D14: Copyright (C) 2012 The ChromiumOS Authors.  All rights reserved.


tool: D27: This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, version 2 of the License.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.


assistant: ```c
void print_version(void) {
  printf("cbmem v%s -- ", "1.1");
  printf("Copyright (C) 2012 The ChromiumOS Authors.  All rights reserved.\n\n");
  printf("This program is free software: you can redistribute it and/or modify\n"
         "it under the terms of the GNU General Public License as published by\n"
         "the Free Software Foundation, version 2 of the License.\n\n"
         "This program is distributed in the hope that it will be useful,\n"
         "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
         "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
         "GNU General Public License for more details.\n\n"
         "You should have received a copy of the GNU General Public License\n"
         "along with this program.  If not, see <http://www.gnu.org/licenses/>.\n\n");
}
```
user: Translate the below assembly code into C programming language:

```asm
<print_version>:
  endbr64
  sub    $0x8,%rsp
  lea    D15(%rip),%rsi
  lea    D17(%rip),%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  lea    D26(%rip),%rdi
  call   <puts@plt>
  lea    D13(%rip),%rdi
  call   <puts@plt>
  add    $0x8,%rsp
  ret
```

tool_calls: name: unpack_data
arguments: tag: D15
datatype: string
name: unpack_data
arguments: tag: D17
datatype: string
name: unpack_data
arguments: tag: D26
datatype: string
name: unpack_data
arguments: tag: D13
datatype: string

tool: D15: 1.1

tool: D17: cbmem v%s -- 

tool: D26: Copyright (C) 2012 The ChromiumOS Authors.  All rights reserved.


tool: D13: This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, version 2 of the License.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.


assistant: ```c
void print_version(void) {
  printf("cbmem v%s -- ", "1.1");
  printf("Copyright (C) 2012 The ChromiumOS Authors.  All rights reserved.\n\n");
  printf("This program is free software: you can redistribute it and/or modify\n"
         "it under the terms of the GNU General Public License as published by\n"
         "the Free Software Foundation, version 2 of the License.\n\n"
         "This program is distributed in the hope that it will be useful,\n"
         "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
         "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
         "GNU General Public License for more details.\n\n"
         "You should have received a copy of the GNU General Public License\n"
         "along with this program.  If not, see <http://www.gnu.org/licenses/>.\n\n");
}
```
user: What is the c source code of the assembly code below:

```asm
<print_version>:
  endbr64
  sub    $0x8,%rsp
  lea    D31(%rip),%rsi
  lea    D18(%rip),%rdi
  xor    %eax,%eax
  call   <printf@plt>
  lea    D9(%rip),%rdi
  call   <puts@plt>
  lea    D32(%rip),%rdi
  add    $0x8,%rsp
  jmp    1060 <puts@plt>
```

tool_calls: name: extract_symbolic_data
arguments: data_tag: D31
type_infered: string
name: extract_symbolic_data
arguments: data_tag: D18
type_infered: string
name: extract_symbolic_data
arguments: data_tag: D9
type_infered: string
name: extract_symbolic_data
arguments: data_tag: D32
type_infered: string

tool: D31: 1.1

tool: D18: cbmem v%s -- 

tool: D9: Copyright (C) 2012 The ChromiumOS Authors.  All rights reserved.


tool: D32: This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, version 2 of the License.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.


assistant: ```c
void print_version(void) {
  printf("cbmem v%s -- ", "1.1");
  printf("Copyright (C) 2012 The ChromiumOS Authors.  All rights reserved.\n\n");
  printf("This program is free software: you can redistribute it and/or modify\n"
         "it under the terms of the GNU General Public License as published by\n"
         "the Free Software Foundation, version 2 of the License.\n\n"
         "This program is distributed in the hope that it will be useful,\n"
         "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
         "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
         "GNU General Public License for more details.\n\n"
         "You should have received a copy of the GNU General Public License\n"
         "along with this program.  If not, see <http://www.gnu.org/licenses/>.\n\n");
}
```
user: What would the C source look like for the assembly code provided here?

```asm
<print_version>:
  endbr64
  sub    $0x8,%rsp
  lea    D31(%rip),%rsi
  lea    D33(%rip),%rdi
  xor    %eax,%eax
  call   <printf@plt>
  lea    D16(%rip),%rdi
  call   <puts@plt>
  lea    D34(%rip),%rdi
  add    $0x8,%rsp
  jmp    1060 <puts@plt>
```

tool_calls: name: extract_symbolic_data
arguments: tag: D31
type_infered: string
name: extract_symbolic_data
arguments: tag: D33
type_infered: string
name: extract_symbolic_data
arguments: tag: D16
type_infered: string
name: extract_symbolic_data
arguments: tag: D34
type_infered: string

tool: D31: 1.1

tool: D33: cbmem v%s -- 

tool: D16: Copyright (C) 2012 The ChromiumOS Authors.  All rights reserved.


tool: D34: This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, version 2 of the License.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.


assistant: ```c
void print_version(void) {
  printf("cbmem v%s -- ", "1.1");
  printf("Copyright (C) 2012 The ChromiumOS Authors.  All rights reserved.\n\n");
  printf("This program is free software: you can redistribute it and/or modify\n"
         "it under the terms of the GNU General Public License as published by\n"
         "the Free Software Foundation, version 2 of the License.\n\n"
         "This program is distributed in the hope that it will be useful,\n"
         "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
         "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
         "GNU General Public License for more details.\n\n"
         "You should have received a copy of the GNU General Public License\n"
         "along with this program.  If not, see <http://www.gnu.org/licenses/>.\n\n");
}
```
user: Demonstrate the C code that generates the assembly output below:

```asm
<_alarm>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x10,%rsp
  mov    %edi,-0x4(%rbp)
  lea    D6(%rip),%rax
  mov    %rax,%rdi
  call   <puts@plt>
  mov    $0x1,%edi
  call   <exit@plt>
  nop
  leave
  ret
```

tool_calls: name: parse_data
arguments: data_tag: D6
type: string

tool: D6: Timeout!

assistant: ```c
void _alarm(int sig) {
  puts("Timeout!");
  exit(1);
}
```
user: 请从给定的汇编指令推导出C源代码:

```asm
<_alarm>:
  endbr64
  sub    $0x8,%rsp
  lea    D5(%rip),%rdi
  call   <puts@plt>
  mov    $0x1,%edi
  call   <exit@plt>
  add    $0x8,%rsp
  ret
```

tool_calls: name: read_data
arguments: data_tag: D5
type: string

tool: D5: Timeout!

assistant: ```c
void _alarm(int sig) {
  puts("Timeout!");
  exit(1);
}
```
user: 请将以下的汇编代码转换成C语言代码：

```asm
<_alarm>:
  endbr64
  sub    $0x8,%rsp
  lea    D9(%rip),%rdi
  call   <puts@plt>
  mov    $0x1,%edi
  add    $0x8,%rsp
  jmp    1070 <exit@plt>
```

tool_calls: name: disassemble_data
arguments: data_tag: D9
type_infered: string

tool: D9: Timeout!

assistant: ```c
void _alarm(int sig) {
  puts("Timeout!");
  exit(1);
}
```
user: 这段汇编代码用C语言表示是什么样的?

```asm
<_alarm>:
  endbr64
  sub    $0x8,%rsp
  lea    D8(%rip),%rdi
  call   <puts@plt>
  mov    $0x1,%edi
  add    $0x8,%rsp
  jmp    1070 <exit@plt>
```

tool_calls: name: extract_symbolic_data
arguments: tag: D8
type_infered: string

tool: D8: Timeout!

assistant: ```c
void _alarm(int sig) {
  puts("Timeout!");
  exit(1);
}
```
user: 请将这段汇编代码片段转换成等效的C代码：

```asm
<next>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x30,%rsp
  mov    %rdi,-0x18(%rbp)
  mov    %rsi,-0x20(%rbp)
  mov    %rdx,-0x28(%rbp)
  movq   $0x0,-0x8(%rbp)
L23:
  mov    -0x18(%rbp),%rdx
  mov    -0x28(%rbp),%rcx
  mov    -0x20(%rbp),%rax
  mov    %rcx,%rsi
  mov    %rax,%rdi
  call   <fgets@plt>
  mov    %rax,-0x8(%rbp)
  cmpq   $0x0,-0x8(%rbp)
  je     L8
  mov    -0x20(%rbp),%rax
  mov    $0xa,%esi
  mov    %rax,%rdi
  call   <strchr@plt>
  test   %rax,%rax
  jne    L42
L99:
  mov    -0x18(%rbp),%rax
  mov    %rax,%rdi
  call   <fgetc@plt>
  mov    %eax,-0xc(%rbp)
  cmpl   $0xa,-0xc(%rbp)
  je     L42
  mov    D6(%rip),%rax
  mov    (%rax),%eax
  cmp    %eax,-0xc(%rbp)
  je     L42
  jmp    L99
L42:
  movl   $0x0,-0x10(%rbp)
  jmp    L9
L88:
  addl   $0x1,-0x10(%rbp)
L9:
  mov    -0x10(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x20(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  cmp    $0x20,%al
  je     L88
  mov    -0x10(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x20(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  cmp    $0x9,%al
  je     L88
  mov    -0x10(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x20(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  cmp    $0x23,%al
  je     L23
  mov    -0x10(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x20(%rbp),%rax
  add    %rdx,%rax
  mov    %rax,-0x8(%rbp)
  jmp    L53
L8:
  nop
L53:
  mov    -0x8(%rbp),%rax
  leave
  ret
```

assistant: ```c
char *next(FILE *fp, char *buf, size_t sz) {
  char *rt = NULL;
  while (1) {
    int i;
    rt = fgets(buf, sz, fp);
    if (rt == NULL)
      break;
    if (strchr(buf, '\n') == NULL) {
      while (1) {
        int ch = fgetc(fp);
        if (ch == '\n' || ch == EOF)
          break;
      }
    }
    for (i = 0; buf[i] == ' ' || buf[i] == '\t'; i++)
      ;
    if (buf[i] != '#') {
      rt = buf + i;
      break;
    }
  }
  return rt;
}
```
user: 这段汇编代码用C语言表示是什么样的？

```asm
<next>:
  endbr64
  push   %r12
  push   %rbp
  push   %rbx
  mov    %rdi,%rbp
  mov    %rsi,%rbx
  mov    %rdx,%r12
  jmp    L112
L24:
  mov    %rbp,%rdi
  call   <fgetc@plt>
  cmp    $0xa,%eax
  je     L15
  mov    D8(%rip),%rdx
  cmp    %eax,(%rdx)
  jne    L24
  jmp    L15
L30:
  lea    0x1(%rbx),%rdx
L46:
  mov    %rdx,%rax
  movzbl (%rdx),%ecx
  add    $0x1,%rdx
  cmp    $0x20,%cl
  je     L46
  cmp    $0x9,%cl
  je     L46
L9:
  cmp    $0x23,%cl
  jne    L8
L112:
  mov    %rbp,%rdx
  mov    %r12,%rsi
  mov    %rbx,%rdi
  call   <fgets@plt>
  test   %rax,%rax
  je     L8
  mov    $0xa,%esi
  mov    %rbx,%rdi
  call   <strchr@plt>
  test   %rax,%rax
  je     L24
L15:
  movzbl (%rbx),%ecx
  cmp    $0x20,%cl
  je     L30
  cmp    $0x9,%cl
  je     L30
  mov    %rbx,%rax
  jmp    L9
L8:
  pop    %rbx
  pop    %rbp
  pop    %r12
  ret
```

assistant: ```c
char *next(FILE *fp, char *buf, size_t sz) {
  char *rt = NULL;
  while (1) {
    int i;
    rt = fgets(buf, sz, fp);
    if (rt == NULL)
      break;
    if (strchr(buf, '\n') == NULL) {
      while (1) {
        int ch = fgetc(fp);
        if (ch == '\n' || ch == EOF)
          break;
      }
    }
    for (i = 0; buf[i] == ' ' || buf[i] == '\t'; i++)
      ;
    if (buf[i] != '#') {
      rt = buf + i;
      break;
    }
  }
  return rt;
}
```
user: Demonstrate the C code that generates the assembly output below:

```asm
<next>:
  endbr64
  push   %r12
  mov    %rdx,%r12
  push   %rbp
  mov    %rdi,%rbp
  push   %rbx
  mov    %rsi,%rbx
  nopl   0x0(%rax)
L83:
  mov    %rbp,%rdx
  mov    %r12,%rsi
  mov    %rbx,%rdi
  call   <fgets@plt>
  test   %rax,%rax
  je     L50
  mov    $0xa,%esi
  mov    %rbx,%rdi
  call   <strchr@plt>
  test   %rax,%rax
  je     L29
L20:
  movzbl (%rbx),%ecx
  cmp    $0x20,%cl
  je     L52
  cmp    $0x9,%cl
  jne    L8
L52:
  lea    0x1(%rbx),%rdx
  xchg   %ax,%ax
L115:
  movzbl (%rdx),%ecx
  mov    %rdx,%rax
  add    $0x1,%rdx
  cmp    $0x20,%cl
  je     L115
  cmp    $0x9,%cl
  je     L115
  cmp    $0x23,%cl
  je     L83
L50:
  pop    %rbx
  pop    %rbp
  pop    %r12
  ret
  xchg   %ax,%ax
L114:
  mov    D6(%rip),%rdx
  cmp    %eax,(%rdx)
  je     L20
L29:
  mov    %rbp,%rdi
  call   <fgetc@plt>
  cmp    $0xa,%eax
  jne    L114
  jmp    L20
  nopw   0x0(%rax,%rax,1)
L8:
  mov    %rbx,%rax
  cmp    $0x23,%cl
  je     L83
  jmp    L50
```

assistant: ```c
char *next(FILE *fp, char *buf, size_t sz) {
  char *rt = NULL;
  while (1) {
    int i;
    rt = fgets(buf, sz, fp);
    if (rt == NULL)
      break;
    if (strchr(buf, '\n') == NULL) {
      while (1) {
        int ch = fgetc(fp);
        if (ch == '\n' || ch == EOF)
          break;
      }
    }
    for (i = 0; buf[i] == ' ' || buf[i] == '\t'; i++)
      ;
    if (buf[i] != '#') {
      rt = buf + i;
      break;
    }
  }
  return rt;
}
```
user: 这段汇编代码用C语言表示是什么样的：

```asm
<next>:
  endbr64
  push   %r12
  mov    %rdx,%r12
  push   %rbp
  mov    %rdi,%rbp
  push   %rbx
  mov    %rsi,%rbx
  nopl   0x0(%rax)
L56:
  mov    %rbp,%rdx
  mov    %r12,%rsi
  mov    %rbx,%rdi
  call   <fgets@plt>
  test   %rax,%rax
  je     L12
  mov    $0xa,%esi
  mov    %rbx,%rdi
  call   <strchr@plt>
  test   %rax,%rax
  je     L65
L3:
  movzbl (%rbx),%ecx
  cmp    $0x20,%cl
  je     L33
  cmp    $0x9,%cl
  jne    L36
L33:
  lea    0x1(%rbx),%rdx
  xchg   %ax,%ax
L78:
  movzbl (%rdx),%ecx
  mov    %rdx,%rax
  add    $0x1,%rdx
  cmp    $0x20,%cl
  je     L78
  cmp    $0x9,%cl
  je     L78
  cmp    $0x23,%cl
  je     L56
L12:
  pop    %rbx
  pop    %rbp
  pop    %r12
  ret
  xchg   %ax,%ax
L111:
  mov    D8(%rip),%rdx
  cmp    %eax,(%rdx)
  je     L3
L65:
  mov    %rbp,%rdi
  call   <fgetc@plt>
  cmp    $0xa,%eax
  jne    L111
  jmp    L3
  nopw   0x0(%rax,%rax,1)
L36:
  mov    %rbx,%rax
  cmp    $0x23,%cl
  je     L56
  jmp    L12
```

assistant: ```c
char *next(FILE *fp, char *buf, size_t sz) {
  char *rt = NULL;
  while (1) {
    int i;
    rt = fgets(buf, sz, fp);
    if (rt == NULL)
      break;
    if (strchr(buf, '\n') == NULL) {
      while (1) {
        int ch = fgetc(fp);
        if (ch == '\n' || ch == EOF)
          break;
      }
    }
    for (i = 0; buf[i] == ' ' || buf[i] == '\t'; i++)
      ;
    if (buf[i] != '#') {
      rt = buf + i;
      break;
    }
  }
  return rt;
}
```