ylfeng/ReF-Decompile-dataset huggingface dataset:
user: 下面的汇编指令对应的C源代码是什么：

```asm
<check_for_comma>:
  endbr64
  test   %rdi,%rdi
  je     L97
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  mov    %rdi,%r13
  mov    (%rdi),%rbx
  mov    %rbx,%rdi
  call   <strlen@plt>
  test   %eax,%eax
  jle    L40
  mov    %rbx,%rbp
  lea    -0x1(%rax),%edx
  lea    0x1(%rbx,%rdx,1),%r12
  mov    %rbx,%rdx
  mov    $0x0,%ecx
L16:
  cmpb   $0x2c,(%rdx)
  sete   %sil
  movzbl %sil,%esi
  add    %esi,%ecx
  add    $0x1,%rdx
  cmp    %r12,%rdx
  jne    L16
  test   %ecx,%ecx
  je     L40
  cmp    $0x40,%ecx
  jg     L103
  lea    (%rcx,%rax,1),%ebx
  lea    0x1(%rbx),%edi
  call   <malloc@plt>
  mov    %rax,%r14
  test   %rax,%rax
  je     L40
  mov    $0x0,%eax
  jmp    L71
L103:
  lea    D7(%rip),%rdi
  call   <printf@plt>
  jmp    L40
L0:
  add    $0x1,%eax
  add    $0x1,%rbp
  cmp    %r12,%rbp
  je     L47
L71:
  movzbl 0x0(%rbp),%edx
  movslq %eax,%rcx
  mov    %dl,(%r14,%rcx,1)
  cmp    $0x2c,%dl
  jne    L0
  add    $0x1,%eax
  movslq %eax,%rdx
  movb   $0x2c,(%r14,%rdx,1)
  jmp    L0
L47:
  movslq %ebx,%rcx
  movb   $0x0,(%r14,%rcx,1)
  mov    0x0(%r13),%rdi
  call   <free@plt>
  mov    %r14,0x0(%r13)
L40:
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  ret
L97:
  ret
```

tool_calls: name: disassemble_data
arguments: label: D7
data_type: string

tool: D7: 
Invalid password. Password contains too many commas.


assistant: ```c
void check_for_comma(char **ppasswrd) {
  char *new_pass_buf;
  char *pass;
  int i, j;
  int number_of_commas = 0;
  int len;
  if (ppasswrd == NULL)
    return;
  else
    (pass = *ppasswrd);
  len = strlen(pass);
  for (i = 0; i < len; i++) {
    if (pass[i] == ',')
      number_of_commas++;
  }
  if (number_of_commas == 0)
    return;
  if (number_of_commas > 64) {
    printf("\nInvalid password. Password contains too many commas.\n");
    return;
  }
  new_pass_buf = malloc(len + number_of_commas + 1);
  if (new_pass_buf == NULL)
    return;
  for (i = 0, j = 0; i < len; i++, j++) {
    new_pass_buf[j] = pass[i];
    if (pass[i] == ',') {
      j++;
      new_pass_buf[j] = pass[i];
    }
  }
  new_pass_buf[len + number_of_commas] = 0;
  free(*ppasswrd);
  *ppasswrd = new_pass_buf;
  return;
}
```
user: 请从给定的汇编指令推导出C源代码:

```asm
<check_for_comma>:
  endbr64
  test   %rdi,%rdi
  je     L15
  push   %r14
  push   %r13
  push   %r12
  mov    %rdi,%r12
  push   %rbp
  push   %rbx
  mov    (%rdi),%rbp
  mov    %rbp,%rdi
  call   <strlen@plt>
  test   %eax,%eax
  jle    L7
  lea    -0x1(%rax),%edx
  xor    %ecx,%ecx
  lea    0x1(%rbp,%rdx,1),%r14
  mov    %rbp,%rdx
  nopl   0x0(%rax,%rax,1)
L64:
  xor    %esi,%esi
  cmpb   $0x2c,(%rdx)
  sete   %sil
  add    $0x1,%rdx
  add    %esi,%ecx
  cmp    %r14,%rdx
  jne    L64
  test   %ecx,%ecx
  je     L7
  cmp    $0x40,%ecx
  jg     L51
  lea    (%rcx,%rax,1),%ebx
  lea    0x1(%rbx),%edi
  call   <malloc@plt>
  mov    %rax,%r13
  test   %rax,%rax
  je     L7
  xor    %eax,%eax
  nopw   0x0(%rax,%rax,1)
L38:
  movzbl 0x0(%rbp),%edx
  movslq %eax,%rcx
  mov    %dl,0x0(%r13,%rcx,1)
  cmp    $0x2c,%dl
  jne    L52
  add    $0x1,%eax
  movslq %eax,%rdx
  movb   $0x2c,0x0(%r13,%rdx,1)
L52:
  add    $0x1,%rbp
  add    $0x1,%eax
  cmp    %r14,%rbp
  jne    L38
  movslq %ebx,%rcx
  movb   $0x0,0x0(%r13,%rcx,1)
  mov    (%r12),%rdi
  call   <free@plt>
  mov    %r13,(%r12)
L7:
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  ret
L15:
  ret
  nopl   0x0(%rax)
L51:
  pop    %rbx
  lea    D1(%rip),%rdi
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  jmp    10a0 <printf@plt>
```

tool_calls: name: parse_data
arguments: data_tag: D1
type_infered: string

tool: D1: 
Invalid password. Password contains too many commas.


assistant: ```c
void check_for_comma(char **ppasswrd) {
  char *new_pass_buf;
  char *pass;
  int i, j;
  int number_of_commas = 0;
  int len;
  if (ppasswrd == NULL)
    return;
  else
    (pass = *ppasswrd);
  len = strlen(pass);
  for (i = 0; i < len; i++) {
    if (pass[i] == ',')
      number_of_commas++;
  }
  if (number_of_commas == 0)
    return;
  if (number_of_commas > 64) {
    printf("\nInvalid password. Password contains too many commas.\n");
    return;
  }
  new_pass_buf = malloc(len + number_of_commas + 1);
  if (new_pass_buf == NULL)
    return;
  for (i = 0, j = 0; i < len; i++, j++) {
    new_pass_buf[j] = pass[i];
    if (pass[i] == ',') {
      j++;
      new_pass_buf[j] = pass[i];
    }
  }
  new_pass_buf[len + number_of_commas] = 0;
  free(*ppasswrd);
  *ppasswrd = new_pass_buf;
  return;
}
```
user: 请显示与下面列出的汇编代码相匹配的C语言实现:

```asm
<WaveformDiagram>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  lea    D52(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
  lea    D55(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
  lea    D64(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
  lea    D56(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
  lea    D23(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
  lea    D18(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
  lea    D39(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
  lea    D35(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
  nop
  pop    %rbp
  ret
```

tool_calls: name: parse_data
arguments: data_label: D52
data_type: string
name: parse_data
arguments: data_label: D55
data_type: string
name: parse_data
arguments: data_label: D64
data_type: string
name: parse_data
arguments: data_label: D56
data_type: string
name: parse_data
arguments: data_label: D23
data_type: string
name: parse_data
arguments: data_label: D18
data_type: string
name: parse_data
arguments: data_label: D39
data_type: string
name: parse_data
arguments: data_label: D35
data_type: string

tool: D52:                     Signal waveform                           


tool: D55:   |<-------- 1 complete cycle or waveform ------------------>|


tool: D64:    ______                           __________________________________   


tool: D56: __|      |_________________________|                       |   |      |_____\ 


tool: D23:    MTC     Grow-in (beam on)      /\   Decay-out (beam off) /\   MTC      


tool: D18:    move                           ||                        ||   move     


tool: D39:                                 Pause                    Laser gain       


tool: D35:                                 Option                   watch option     


assistant: ```c
void WaveformDiagram() {
  printf("                    Signal waveform                           \n");
  printf("  |<-------- 1 complete cycle or waveform ------------------>|\n");
  printf("   ______                           __________________________________   \n");
  printf("__|      |_________________________|                       |   |      |_____\\ \n");
  printf("   MTC     Grow-in (beam on)      /\\   Decay-out (beam off) /\\   MTC      \n");
  printf("   move                           ||                        ||   move     \n");
  printf("                                Pause                    Laser gain       \n");
  printf("                                Option                   watch option     \n");
  return;
}
```
user: 这段汇编代码用C语言表示是什么样的?

```asm
<WaveformDiagram>:
  endbr64
  sub    $0x8,%rsp
  lea    D76(%rip),%rdi
  call   <printf@plt>
  lea    D69(%rip),%rdi
  call   <printf@plt>
  lea    D53(%rip),%rdi
  call   <printf@plt>
  lea    D19(%rip),%rdi
  call   <printf@plt>
  lea    D37(%rip),%rdi
  call   <printf@plt>
  lea    D13(%rip),%rdi
  call   <printf@plt>
  lea    D54(%rip),%rdi
  call   <printf@plt>
  lea    D12(%rip),%rdi
  call   <printf@plt>
  add    $0x8,%rsp
  ret
```

tool_calls: name: unpack_data
arguments: tag: D76
datatype: string
name: unpack_data
arguments: tag: D69
datatype: string
name: unpack_data
arguments: tag: D53
datatype: string
name: unpack_data
arguments: tag: D19
datatype: string
name: unpack_data
arguments: tag: D37
datatype: string
name: unpack_data
arguments: tag: D13
datatype: string
name: unpack_data
arguments: tag: D54
datatype: string
name: unpack_data
arguments: tag: D12
datatype: string

tool: D76:                     Signal waveform                           


tool: D69:   |<-------- 1 complete cycle or waveform ------------------>|


tool: D53:    ______                           __________________________________   


tool: D19: __|      |_________________________|                       |   |      |_____\ 


tool: D37:    MTC     Grow-in (beam on)      /\   Decay-out (beam off) /\   MTC      


tool: D13:    move                           ||                        ||   move     


tool: D54:                                 Pause                    Laser gain       


tool: D12:                                 Option                   watch option     


assistant: ```c
void WaveformDiagram() {
  printf("                    Signal waveform                           \n");
  printf("  |<-------- 1 complete cycle or waveform ------------------>|\n");
  printf("   ______                           __________________________________   \n");
  printf("__|      |_________________________|                       |   |      |_____\\ \n");
  printf("   MTC     Grow-in (beam on)      /\\   Decay-out (beam off) /\\   MTC      \n");
  printf("   move                           ||                        ||   move     \n");
  printf("                                Pause                    Laser gain       \n");
  printf("                                Option                   watch option     \n");
  return;
}
```
user: 请将这段汇编代码片段转换成等效的C代码:

```asm
<WaveformDiagram>:
  endbr64
  sub    $0x8,%rsp
  lea    D68(%rip),%rdi
  call   <printf@plt>
  lea    D0(%rip),%rdi
  call   <printf@plt>
  lea    D64(%rip),%rdi
  call   <printf@plt>
  lea    D33(%rip),%rdi
  call   <printf@plt>
  lea    D37(%rip),%rdi
  call   <printf@plt>
  lea    D70(%rip),%rdi
  call   <printf@plt>
  lea    D58(%rip),%rdi
  call   <printf@plt>
  lea    D54(%rip),%rdi
  add    $0x8,%rsp
  jmp    1050 <printf@plt>
```

tool_calls: name: disassemble_data
arguments: data_label: D68
datatype: string
name: disassemble_data
arguments: data_label: D0
datatype: string
name: disassemble_data
arguments: data_label: D64
datatype: string
name: disassemble_data
arguments: data_label: D33
datatype: string
name: disassemble_data
arguments: data_label: D37
datatype: string
name: disassemble_data
arguments: data_label: D70
datatype: string
name: disassemble_data
arguments: data_label: D58
datatype: string
name: disassemble_data
arguments: data_label: D54
datatype: string

tool: D68:                     Signal waveform                           


tool: D0:   |<-------- 1 complete cycle or waveform ------------------>|


tool: D64:    ______                           __________________________________   


tool: D33: __|      |_________________________|                       |   |      |_____\ 


tool: D37:    MTC     Grow-in (beam on)      /\   Decay-out (beam off) /\   MTC      


tool: D70:    move                           ||                        ||   move     


tool: D58:                                 Pause                    Laser gain       


tool: D54:                                 Option                   watch option     


assistant: ```c
void WaveformDiagram() {
  printf("                    Signal waveform                           \n");
  printf("  |<-------- 1 complete cycle or waveform ------------------>|\n");
  printf("   ______                           __________________________________   \n");
  printf("__|      |_________________________|                       |   |      |_____\\ \n");
  printf("   MTC     Grow-in (beam on)      /\\   Decay-out (beam off) /\\   MTC      \n");
  printf("   move                           ||                        ||   move     \n");
  printf("                                Pause                    Laser gain       \n");
  printf("                                Option                   watch option     \n");
  return;
}
```
user: What is the c source code of the assembly code below:

```asm
<WaveformDiagram>:
  endbr64
  sub    $0x8,%rsp
  lea    D4(%rip),%rdi
  call   <printf@plt>
  lea    D8(%rip),%rdi
  call   <printf@plt>
  lea    D79(%rip),%rdi
  call   <printf@plt>
  lea    D19(%rip),%rdi
  call   <printf@plt>
  lea    D29(%rip),%rdi
  call   <printf@plt>
  lea    D2(%rip),%rdi
  call   <printf@plt>
  lea    D74(%rip),%rdi
  call   <printf@plt>
  lea    D41(%rip),%rdi
  add    $0x8,%rsp
  jmp    1050 <printf@plt>
```

tool_calls: name: unpack_data
arguments: data_tag: D4
data_type: string
name: unpack_data
arguments: data_tag: D8
data_type: string
name: unpack_data
arguments: data_tag: D79
data_type: string
name: unpack_data
arguments: data_tag: D19
data_type: string
name: unpack_data
arguments: data_tag: D29
data_type: string
name: unpack_data
arguments: data_tag: D2
data_type: string
name: unpack_data
arguments: data_tag: D74
data_type: string
name: unpack_data
arguments: data_tag: D41
data_type: string

tool: D4:                     Signal waveform                           


tool: D8:   |<-------- 1 complete cycle or waveform ------------------>|


tool: D79:    ______                           __________________________________   


tool: D19: __|      |_________________________|                       |   |      |_____\ 


tool: D29:    MTC     Grow-in (beam on)      /\   Decay-out (beam off) /\   MTC      


tool: D2:    move                           ||                        ||   move     


tool: D74:                                 Pause                    Laser gain       


tool: D41:                                 Option                   watch option     


assistant: ```c
void WaveformDiagram() {
  printf("                    Signal waveform                           \n");
  printf("  |<-------- 1 complete cycle or waveform ------------------>|\n");
  printf("   ______                           __________________________________   \n");
  printf("__|      |_________________________|                       |   |      |_____\\ \n");
  printf("   MTC     Grow-in (beam on)      /\\   Decay-out (beam off) /\\   MTC      \n");
  printf("   move                           ||                        ||   move     \n");
  printf("                                Pause                    Laser gain       \n");
  printf("                                Option                   watch option     \n");
  return;
}
```
user: 这段汇编代码用C语言表示是什么样的：

```asm
<fmt_convert_s24_to_float>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    %rdi,-0x28(%rbp)
  mov    %rsi,-0x30(%rbp)
  mov    %edx,-0x34(%rbp)
  mov    -0x28(%rbp),%rax
  mov    %rax,-0x10(%rbp)
  mov    -0x30(%rbp),%rax
  mov    %rax,-0x8(%rbp)
  movl   $0x0,-0x14(%rbp)
  jmp    L1
L14:
  mov    -0x14(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x8(%rbp),%rax
  add    %rdx,%rax
  movsd  (%rax),%xmm0
  movsd  D8(%rip),%xmm1
  divsd  %xmm1,%xmm0
  mov    -0x14(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x10(%rbp),%rax
  add    %rdx,%rax
  cvtsd2ss %xmm0,%xmm0
  movss  %xmm0,(%rax)
  addl   $0x1,-0x14(%rbp)
L1:
  mov    -0x14(%rbp),%eax
  cmp    -0x34(%rbp),%eax
  jl     L14
  nop
  nop
  pop    %rbp
  ret
```

tool_calls: name: disassemble_data
arguments: data_tag: D8
data_type: f64

tool: D8: 8388608

assistant: ```c
void fmt_convert_s24_to_float(void *dest_v, void *src_v, int n) {
  float *dest = dest_v;
  int32_t *src = src_v;
  int i;
  for (i = 0; i < n; i++)
    dest[i] = src[i] / 8388608.0;
}
```
user: 提供的汇编代码用C语言表示会是什么样子:

```asm
<fmt_convert_s24_to_float>:
  endbr64
  test   %edx,%edx
  jle    L1
  mov    %edx,%edx
  mov    $0x0,%eax
  movsd  D4(%rip),%xmm1
L9:
  movapd %xmm1,%xmm0
  mulsd  (%rsi,%rax,8),%xmm0
  cvtsd2ss %xmm0,%xmm0
  movss  %xmm0,(%rdi,%rax,4)
  add    $0x1,%rax
  cmp    %rdx,%rax
  jne    L9
L1:
  ret
```

tool_calls: name: disassemble_data
arguments: label: D4
type_guessed: byte[8]

tool: {"D4": [0x00,0x00,0x00,0x00,0x00,0x00,0x80,0x3e]}

assistant: ```c
void fmt_convert_s24_to_float(void *dest_v, void *src_v, int n) {
  float *dest = dest_v;
  int32_t *src = src_v;
  int i;
  for (i = 0; i < n; i++)
    dest[i] = src[i] / 8388608.0;
}
```
user: What would the C source look like for the assembly code provided here:

```asm
<fmt_convert_s24_to_float>:
  endbr64
  test   %edx,%edx
  jle    L2
  movsd  D4(%rip),%xmm1
  movslq %edx,%rdx
  xor    %eax,%eax
  nopl   (%rax)
L7:
  movsd  (%rsi,%rax,8),%xmm0
  mulsd  %xmm1,%xmm0
  cvtsd2ss %xmm0,%xmm0
  movss  %xmm0,(%rdi,%rax,4)
  add    $0x1,%rax
  cmp    %rax,%rdx
  jne    L7
L2:
  ret
```

tool_calls: name: unpack_data
arguments: data_label: D4
type_guessed: byte[8]

tool: {"D4": [0x00,0x00,0x00,0x00,0x00,0x00,0x80,0x3e]}

assistant: ```c
void fmt_convert_s24_to_float(void *dest_v, void *src_v, int n) {
  float *dest = dest_v;
  int32_t *src = src_v;
  int i;
  for (i = 0; i < n; i++)
    dest[i] = src[i] / 8388608.0;
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<fmt_convert_s24_to_float>:
  endbr64
  mov    %rsi,%rcx
  mov    %edx,%esi
  test   %edx,%edx
  jle    L40
  lea    -0x1(%rdx),%eax
  cmp    $0x2,%eax
  jbe    L30
  shr    $0x2,%edx
  movapd D12(%rip),%xmm2
  xor    %eax,%eax
  shl    $0x4,%rdx
  xchg   %ax,%ax
L16:
  movupd (%rcx,%rax,2),%xmm0
  movupd 0x10(%rcx,%rax,2),%xmm1
  mulpd  %xmm2,%xmm0
  mulpd  %xmm2,%xmm1
  cvtpd2ps %xmm0,%xmm0
  cvtpd2ps %xmm1,%xmm1
  movlhps %xmm1,%xmm0
  movups %xmm0,(%rdi,%rax,1)
  add    $0x10,%rax
  cmp    %rax,%rdx
  jne    L16
  mov    %esi,%eax
  and    $0xfffffffc,%eax
  test   $0x3,%sil
  je     L48
L46:
  movslq %eax,%rdx
  movsd  D12(%rip),%xmm0
  movsd  (%rcx,%rdx,8),%xmm1
  lea    0x0(,%rdx,8),%r9
  lea    0x0(,%rdx,4),%r8
  mulsd  %xmm0,%xmm1
  cvtsd2ss %xmm1,%xmm1
  movss  %xmm1,(%rdi,%rdx,4)
  lea    0x1(%rax),%edx
  cmp    %edx,%esi
  jle    L40
  movsd  0x8(%rcx,%r9,1),%xmm1
  add    $0x2,%eax
  mulsd  %xmm0,%xmm1
  cvtsd2ss %xmm1,%xmm1
  movss  %xmm1,0x4(%rdi,%r8,1)
  cmp    %eax,%esi
  jle    L40
  mulsd  0x10(%rcx,%r9,1),%xmm0
  cvtsd2ss %xmm0,%xmm0
  movss  %xmm0,0x8(%rdi,%r8,1)
L40:
  ret
  nopw   0x0(%rax,%rax,1)
L48:
  ret
L30:
  xor    %eax,%eax
  jmp    L46
```

tool_calls: name: read_data
arguments: data_tag: D12
data_type: byte[16]

tool: {"D12": [0x00,0x00,0x00,0x00,0x00,0x00,0x80,0x3e,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0x3e]}

assistant: ```c
void fmt_convert_s24_to_float(void *dest_v, void *src_v, int n) {
  float *dest = dest_v;
  int32_t *src = src_v;
  int i;
  for (i = 0; i < n; i++)
    dest[i] = src[i] / 8388608.0;
}
```
user: 请将这段汇编代码片段转换成等效的C代码：

```asm
<get_msg>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x840,%rsp
  mov    %rdi,-0x838(%rbp)
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
  movl   $0x0,-0x824(%rbp)
  movl   $0x0,-0x81c(%rbp)
  jmp    L39
L0:
  mov    -0x824(%rbp),%eax
  lea    0x1(%rax),%edx
  mov    %edx,-0x824(%rbp)
  cltq
  movzbl -0x825(%rbp),%edx
  mov    %dl,-0x810(%rbp,%rax,1)
L39:
  mov    -0x838(%rbp),%rax
  mov    %rax,%rdi
  call   <fgetc@plt>
  mov    %al,-0x825(%rbp)
  cmpb   $0xa,-0x825(%rbp)
  je     L1
  mov    D9(%rip),%rax
  movzbl (%rax),%eax
  cmp    %al,-0x825(%rbp)
  jne    L0
L1:
  mov    -0x824(%rbp),%eax
  cltq
  movb   $0x0,-0x810(%rbp,%rax,1)
  lea    -0x810(%rbp),%rax
  mov    %rax,%rdi
  call   <strlen@plt>
  mov    %eax,-0x81c(%rbp)
  mov    -0x81c(%rbp),%eax
  add    $0x1,%eax
  mov    %eax,%edi
  call   <malloc@plt>
  mov    %rax,-0x818(%rbp)
  movl   $0x0,-0x820(%rbp)
  jmp    L51
L3:
  mov    -0x820(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x818(%rbp),%rax
  add    %rax,%rdx
  mov    -0x820(%rbp),%eax
  cltq
  movzbl -0x810(%rbp,%rax,1),%eax
  mov    %al,(%rdx)
  addl   $0x1,-0x820(%rbp)
L51:
  mov    -0x820(%rbp),%eax
  cmp    -0x81c(%rbp),%eax
  jle    L3
  mov    -0x818(%rbp),%rax
  mov    -0x8(%rbp),%rdx
  sub    %fs:0x28,%rdx
  je     L15
  call   <__stack_chk_fail@plt>
L15:
  leave
  ret
```

assistant: ```c
char *get_msg(FILE *fh) {
  char c;
  char *msg;
  char tempmsg[2048];
  int i = 0;
  int len = 0;
  int j;
  while (((c = fgetc(fh)) != '\n') && (c != EOF)) {
    tempmsg[i++] = c;
  }
  tempmsg[i] = '\0';
  len = strlen(tempmsg);
  msg = (char *)malloc((len + 1) * sizeof(c));
  for (j = 0; j <= len; j++) {
    msg[j] = tempmsg[j];
  }
  return (msg);
}
```
user: What would the C source look like for the assembly code provided here?

```asm
<get_msg>:
  endbr64
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x810,%rsp
  mov    %rdi,%r12
  mov    %fs:0x28,%rax
  mov    %rax,0x808(%rsp)
  xor    %eax,%eax
  mov    $0x0,%ebx
  jmp    L58
L22:
  mov    %al,(%rsp,%rbx,1)
  add    $0x1,%rbx
L58:
  mov    %ebx,%ebp
  mov    %r12,%rdi
  call   <fgetc@plt>
  cmp    $0xa,%al
  je     L14
  mov    D6(%rip),%rdx
  cmp    %al,(%rdx)
  jne    L22
L14:
  movslq %ebp,%rbp
  movb   $0x0,(%rsp,%rbp,1)
  mov    %rsp,%rdi
  call   <strlen@plt>
  mov    %eax,%ebx
  lea    0x1(%rax),%edi
  call   <malloc@plt>
  test   %ebx,%ebx
  js     L30
  mov    %ebx,%ebx
  lea    0x1(%rax,%rbx,1),%rdi
  mov    %rax,%rdx
  mov    %rsp,%rsi
  sub    %rax,%rsi
L10:
  movzbl (%rsi,%rdx,1),%ecx
  mov    %cl,(%rdx)
  add    $0x1,%rdx
  cmp    %rdi,%rdx
  jne    L10
L30:
  mov    0x808(%rsp),%rdx
  sub    %fs:0x28,%rdx
  jne    L27
  add    $0x810,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  ret
L27:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
char *get_msg(FILE *fh) {
  char c;
  char *msg;
  char tempmsg[2048];
  int i = 0;
  int len = 0;
  int j;
  while (((c = fgetc(fh)) != '\n') && (c != EOF)) {
    tempmsg[i++] = c;
  }
  tempmsg[i] = '\0';
  len = strlen(tempmsg);
  msg = (char *)malloc((len + 1) * sizeof(c));
  for (j = 0; j <= len; j++) {
    msg[j] = tempmsg[j];
  }
  return (msg);
}
```
user: 请从给定的汇编指令推导出C源代码:

```asm
<get_msg>:
  endbr64
  push   %r13
  mov    %rdi,%r13
  push   %r12
  push   %rbp
  push   %rbx
  xor    %ebx,%ebx
  sub    $0x818,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x808(%rsp)
  xor    %eax,%eax
  mov    %rsp,%rbp
  jmp    L53
  xchg   %ax,%ax
L40:
  mov    D1(%rip),%rdx
  cmp    %al,(%rdx)
  je     L6
  mov    %al,0x0(%rbp,%rbx,1)
  add    $0x1,%rbx
L53:
  mov    %r13,%rdi
  movslq %ebx,%r12
  call   <fgetc@plt>
  cmp    $0xa,%al
  jne    L40
L6:
  mov    %rbp,%rdi
  movb   $0x0,(%rsp,%r12,1)
  call   <strlen@plt>
  movslq %eax,%rbx
  lea    0x1(%rbx),%edi
  call   <malloc@plt>
  test   %ebx,%ebx
  js     L4
  lea    0x1(%rax,%rbx,1),%rsi
  mov    %rax,%rdx
  sub    %rax,%rbp
  nopl   0x0(%rax)
L50:
  movzbl 0x0(%rbp,%rdx,1),%ecx
  add    $0x1,%rdx
  mov    %cl,-0x1(%rdx)
  cmp    %rsi,%rdx
  jne    L50
L4:
  mov    0x808(%rsp),%rdx
  sub    %fs:0x28,%rdx
  jne    L38
  add    $0x818,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
L38:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
char *get_msg(FILE *fh) {
  char c;
  char *msg;
  char tempmsg[2048];
  int i = 0;
  int len = 0;
  int j;
  while (((c = fgetc(fh)) != '\n') && (c != EOF)) {
    tempmsg[i++] = c;
  }
  tempmsg[i] = '\0';
  len = strlen(tempmsg);
  msg = (char *)malloc((len + 1) * sizeof(c));
  for (j = 0; j <= len; j++) {
    msg[j] = tempmsg[j];
  }
  return (msg);
}
```