ylfeng/ReF-Decompile-dataset huggingface dataset:
user: Demonstrate the C code that generates the assembly output below:

```asm
<time>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x20,%rsp
  mov    %rdi,-0x18(%rbp)
  mov    $0x0,%edi
  call   <real_time@plt>
  mov    %eax,-0x8(%rbp)
  mov    -0x8(%rbp),%eax
  mov    %eax,%edi
  call   <_get_fake_time@plt>
  mov    %eax,-0x4(%rbp)
  cmpq   $0x0,-0x18(%rbp)
  je     L7
  mov    -0x18(%rbp),%rax
  mov    -0x4(%rbp),%edx
  mov    %edx,(%rax)
L7:
  mov    -0x4(%rbp),%eax
  leave
  ret
```

assistant: ```c
time_t time(time_t *tloc) {
  time_t t, f;
  t = real_time(NULL);
  f = _get_fake_time(t);
  ;
  if (tloc)
    *tloc = f;
  return f;
}
```
user: What would the C source look like for the assembly code provided here:

```asm
<time>:
  endbr64
  push   %rbx
  mov    %rdi,%rbx
  mov    $0x0,%edi
  call   <real_time@plt>
  mov    %eax,%edi
  call   <_get_fake_time@plt>
  test   %rbx,%rbx
  je     L5
  mov    %eax,(%rbx)
L5:
  pop    %rbx
  ret
```

assistant: ```c
time_t time(time_t *tloc) {
  time_t t, f;
  t = real_time(NULL);
  f = _get_fake_time(t);
  ;
  if (tloc)
    *tloc = f;
  return f;
}
```
user: Please show me the C implementation that matches the assembly code listed below:

```asm
<time>:
  endbr64
  push   %rbx
  mov    %rdi,%rbx
  xor    %edi,%edi
  call   <real_time@plt>
  mov    %eax,%edi
  call   <_get_fake_time@plt>
  test   %rbx,%rbx
  je     L9
  mov    %eax,(%rbx)
L9:
  pop    %rbx
  ret
```

assistant: ```c
time_t time(time_t *tloc) {
  time_t t, f;
  t = real_time(NULL);
  f = _get_fake_time(t);
  ;
  if (tloc)
    *tloc = f;
  return f;
}
```
user: What is the c source code of the assembly code below?

```asm
<time>:
  endbr64
  push   %rbx
  mov    %rdi,%rbx
  xor    %edi,%edi
  call   <real_time@plt>
  mov    %eax,%edi
  call   <_get_fake_time@plt>
  test   %rbx,%rbx
  je     L9
  mov    %eax,(%rbx)
L9:
  pop    %rbx
  ret
```

assistant: ```c
time_t time(time_t *tloc) {
  time_t t, f;
  t = real_time(NULL);
  f = _get_fake_time(t);
  ;
  if (tloc)
    *tloc = f;
  return f;
}
```
user: 请显示与下面列出的汇编代码相匹配的C语言实现：

```asm
<main>:
  endbr64
  push   %rbp
  push   %rbx
  sub    $0x38,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x28(%rsp)
  xor    %eax,%eax
  movl   $0x2,(%rsp)
  movl   $0x4,0x4(%rsp)
  movl   $0x6,0x8(%rsp)
  movl   $0x8,0xc(%rsp)
  movl   $0x1,0x10(%rsp)
  movl   $0x3,0x14(%rsp)
  movl   $0x5,0x18(%rsp)
  movl   $0x7,0x1c(%rsp)
  mov    %rsp,%rbx
  lea    0x8(%rsp),%rdx
  mov    %rbx,%rsi
  lea    D38(%rip),%rdi
  call   <printf@plt>
  lea    0x4(%rsp),%rbp
  mov    %rbp,%rdx
  mov    %rbx,%rsi
  lea    D41(%rip),%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  mov    %rbp,%rdx
  mov    %rbx,%rsi
  lea    D42(%rip),%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  lea    D68(%rip),%rbx
  mov    %rbx,%rdi
  call   <puts@plt>
  mov    (%rsp),%esi
  lea    D56(%rip),%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  mov    (%rsp),%esi
  lea    D71(%rip),%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  mov    (%rsp),%esi
  lea    D60(%rip),%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  mov    %rbx,%rdi
  call   <puts@plt>
  mov    0x14(%rsp),%esi
  lea    D62(%rip),%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  mov    0x14(%rsp),%esi
  lea    D55(%rip),%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  mov    0x28(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L5
  mov    $0x0,%eax
  add    $0x38,%rsp
  pop    %rbx
  pop    %rbp
  ret
L5:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: retrieve_data
arguments: tag: D38
type_guessed: string
name: retrieve_data
arguments: tag: D41
type_guessed: string
name: retrieve_data
arguments: tag: D42
type_guessed: string
name: retrieve_data
arguments: tag: D68
type_guessed: string
name: retrieve_data
arguments: tag: D56
type_guessed: string
name: retrieve_data
arguments: tag: D71
type_guessed: string
name: retrieve_data
arguments: tag: D60
type_guessed: string
name: retrieve_data
arguments: tag: D62
type_guessed: string
name: retrieve_data
arguments: tag: D55
type_guessed: string

tool: D38: pz    = %p, pz + 1 = %p


tool: D41: *pz   = %p,*pz + 1 = %p


tool: D42: pz[0] = %p,pz[0] + 1 = %p


tool: D68: ==============================

tool: D56:     **pz = %d


tool: D71:   *pz[0] = %d


tool: D60: pz[0][0] = %d


tool: D62:       	pz[2][1] = %d


tool: D55: * (* (pz+2) + 1) = %d


assistant: ```c
int main(int argc, char const *argv[]) {
  int zippo[4][2] = {{2, 4}, {6, 8}, {1, 3}, {5, 7}};
  int(*pz)[2];
  pz = zippo;
  printf("pz    = %p, pz + 1 = %p\n", pz, pz + 1);
  printf("*pz   = %p,*pz + 1 = %p\n", *pz, *pz + 1);
  printf("pz[0] = %p,pz[0] + 1 = %p\n", pz[0], pz[0] + 1);
  printf("==============================\n");
  printf("    **pz = %d\n", **pz);
  printf("  *pz[0] = %d\n", *pz[0]);
  printf("pz[0][0] = %d\n", pz[0][0]);
  printf("==============================\n");
  printf("      	pz[2][1] = %d\n", pz[2][1]);
  printf("* (* (pz+2) + 1) = %d\n", *(*(pz + 2) + 1));
  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
  push   %r12
  lea    D35(%rip),%rdi
  push   %rbp
  sub    $0x38,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x28(%rsp)
  movabs $0x400000002,%rax
  mov    %rsp,%rbp
  lea    0x8(%rsp),%rdx
  lea    0x4(%rsp),%r12
  mov    %rbp,%rsi
  mov    %rax,(%rsp)
  movabs $0x800000006,%rax
  mov    %rax,0x8(%rsp)
  movabs $0x300000001,%rax
  mov    %rax,0x10(%rsp)
  movabs $0x700000005,%rax
  mov    %rax,0x18(%rsp)
  xor    %eax,%eax
  call   <printf@plt>
  mov    %rbp,%rsi
  mov    %r12,%rdx
  xor    %eax,%eax
  lea    D39(%rip),%rdi
  call   <printf@plt>
  mov    %r12,%rdx
  mov    %rbp,%rsi
  xor    %eax,%eax
  lea    D51(%rip),%rdi
  lea    D70(%rip),%rbp
  call   <printf@plt>
  mov    %rbp,%rdi
  call   <puts@plt>
  mov    (%rsp),%esi
  lea    D24(%rip),%rdi
  xor    %eax,%eax
  call   <printf@plt>
  mov    (%rsp),%esi
  lea    D31(%rip),%rdi
  xor    %eax,%eax
  call   <printf@plt>
  mov    (%rsp),%esi
  lea    D37(%rip),%rdi
  xor    %eax,%eax
  call   <printf@plt>
  mov    %rbp,%rdi
  call   <puts@plt>
  mov    0x14(%rsp),%esi
  lea    D6(%rip),%rdi
  xor    %eax,%eax
  call   <printf@plt>
  mov    0x14(%rsp),%esi
  xor    %eax,%eax
  lea    D21(%rip),%rdi
  call   <printf@plt>
  mov    0x28(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L6
  add    $0x38,%rsp
  xor    %eax,%eax
  pop    %rbp
  pop    %r12
  ret
L6:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: disassemble_data
arguments: data_label: D35
type: string
name: disassemble_data
arguments: data_label: D39
type: string
name: disassemble_data
arguments: data_label: D51
type: string
name: disassemble_data
arguments: data_label: D70
type: string
name: disassemble_data
arguments: data_label: D24
type: string
name: disassemble_data
arguments: data_label: D31
type: string
name: disassemble_data
arguments: data_label: D37
type: string
name: disassemble_data
arguments: data_label: D6
type: string
name: disassemble_data
arguments: data_label: D21
type: string

tool: D35: pz    = %p, pz + 1 = %p


tool: D39: *pz   = %p,*pz + 1 = %p


tool: D51: pz[0] = %p,pz[0] + 1 = %p


tool: D70: ==============================

tool: D24:     **pz = %d


tool: D31:   *pz[0] = %d


tool: D37: pz[0][0] = %d


tool: D6:       	pz[2][1] = %d


tool: D21: * (* (pz+2) + 1) = %d


assistant: ```c
int main(int argc, char const *argv[]) {
  int zippo[4][2] = {{2, 4}, {6, 8}, {1, 3}, {5, 7}};
  int(*pz)[2];
  pz = zippo;
  printf("pz    = %p, pz + 1 = %p\n", pz, pz + 1);
  printf("*pz   = %p,*pz + 1 = %p\n", *pz, *pz + 1);
  printf("pz[0] = %p,pz[0] + 1 = %p\n", pz[0], pz[0] + 1);
  printf("==============================\n");
  printf("    **pz = %d\n", **pz);
  printf("  *pz[0] = %d\n", *pz[0]);
  printf("pz[0][0] = %d\n", pz[0][0]);
  printf("==============================\n");
  printf("      	pz[2][1] = %d\n", pz[2][1]);
  printf("* (* (pz+2) + 1) = %d\n", *(*(pz + 2) + 1));
  return 0;
}
```
user: Demonstrate the C code that generates the assembly output below:

```asm
<main>:
  endbr64
  push   %r12
  lea    D86(%rip),%rdi
  push   %rbp
  sub    $0x38,%rsp
  movdqa D13(%rip),%xmm0
  mov    %fs:0x28,%rax
  mov    %rax,0x28(%rsp)
  xor    %eax,%eax
  mov    %rsp,%rbp
  lea    0x8(%rsp),%rdx
  lea    0x4(%rsp),%r12
  movaps %xmm0,(%rsp)
  movdqa D18(%rip),%xmm0
  mov    %rbp,%rsi
  movaps %xmm0,0x10(%rsp)
  call   <printf@plt>
  mov    %rbp,%rsi
  mov    %r12,%rdx
  xor    %eax,%eax
  lea    D65(%rip),%rdi
  call   <printf@plt>
  mov    %r12,%rdx
  mov    %rbp,%rsi
  xor    %eax,%eax
  lea    D71(%rip),%rdi
  lea    D42(%rip),%rbp
  call   <printf@plt>
  mov    %rbp,%rdi
  call   <puts@plt>
  mov    (%rsp),%esi
  lea    D28(%rip),%rdi
  xor    %eax,%eax
  call   <printf@plt>
  mov    (%rsp),%esi
  lea    D79(%rip),%rdi
  xor    %eax,%eax
  call   <printf@plt>
  mov    (%rsp),%esi
  lea    D4(%rip),%rdi
  xor    %eax,%eax
  call   <printf@plt>
  mov    %rbp,%rdi
  call   <puts@plt>
  mov    0x14(%rsp),%esi
  lea    D93(%rip),%rdi
  xor    %eax,%eax
  call   <printf@plt>
  mov    0x14(%rsp),%esi
  xor    %eax,%eax
  lea    D47(%rip),%rdi
  call   <printf@plt>
  mov    0x28(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L8
  add    $0x38,%rsp
  xor    %eax,%eax
  pop    %rbp
  pop    %r12
  ret
L8:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: unpack_data
arguments: data_label: D86
type: string
name: unpack_data
arguments: data_label: D13
type: byte[16]
name: unpack_data
arguments: data_label: D18
type: byte[16]
name: unpack_data
arguments: data_label: D65
type: string
name: unpack_data
arguments: data_label: D71
type: string
name: unpack_data
arguments: data_label: D42
type: string
name: unpack_data
arguments: data_label: D28
type: string
name: unpack_data
arguments: data_label: D79
type: string
name: unpack_data
arguments: data_label: D4
type: string
name: unpack_data
arguments: data_label: D93
type: string
name: unpack_data
arguments: data_label: D47
type: string

tool: D86: pz    = %p, pz + 1 = %p


tool: {"D13": [0x02,0x00,0x00,0x00,0x04,0x00,0x00,0x00,0x06,0x00,0x00,0x00,0x08,0x00,0x00,0x00]}

tool: {"D18": [0x01,0x00,0x00,0x00,0x03,0x00,0x00,0x00,0x05,0x00,0x00,0x00,0x07,0x00,0x00,0x00]}

tool: D65: *pz   = %p,*pz + 1 = %p


tool: D71: pz[0] = %p,pz[0] + 1 = %p


tool: D42: ==============================

tool: D28:     **pz = %d


tool: D79:   *pz[0] = %d


tool: D4: pz[0][0] = %d


tool: D93:       	pz[2][1] = %d


tool: D47: * (* (pz+2) + 1) = %d


assistant: ```c
int main(int argc, char const *argv[]) {
  int zippo[4][2] = {{2, 4}, {6, 8}, {1, 3}, {5, 7}};
  int(*pz)[2];
  pz = zippo;
  printf("pz    = %p, pz + 1 = %p\n", pz, pz + 1);
  printf("*pz   = %p,*pz + 1 = %p\n", *pz, *pz + 1);
  printf("pz[0] = %p,pz[0] + 1 = %p\n", pz[0], pz[0] + 1);
  printf("==============================\n");
  printf("    **pz = %d\n", **pz);
  printf("  *pz[0] = %d\n", *pz[0]);
  printf("pz[0][0] = %d\n", pz[0][0]);
  printf("==============================\n");
  printf("      	pz[2][1] = %d\n", pz[2][1]);
  printf("* (* (pz+2) + 1) = %d\n", *(*(pz + 2) + 1));
  return 0;
}
```
user: Demonstrate the C code that generates the assembly output below:

```asm
<SeparateIntoFields>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    %rdi,-0x18(%rbp)
  mov    %rsi,-0x20(%rbp)
  mov    %edx,-0x24(%rbp)
  movl   $0x0,-0x4(%rbp)
  jmp    L118
L115:
  mov    -0x4(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x20(%rbp),%rax
  add    %rdx,%rax
  lea    D6(%rip),%rdx
  mov    %rdx,(%rax)
  addl   $0x1,-0x4(%rbp)
L118:
  mov    -0x4(%rbp),%eax
  cmp    -0x24(%rbp),%eax
  jl     L115
  movl   $0x0,-0x4(%rbp)
  jmp    L158
L137:
  addq   $0x1,-0x18(%rbp)
L85:
  mov    -0x18(%rbp),%rax
  movzbl (%rax),%eax
  test   %al,%al
  je     L12
  mov    -0x18(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x7c,%al
  je     L137
  mov    -0x18(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x9,%al
  je     L137
  mov    -0x18(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0xa,%al
  je     L137
L12:
  mov    -0x18(%rbp),%rax
  movzbl (%rax),%eax
  test   %al,%al
  jne    L84
  mov    -0x4(%rbp),%eax
  jmp    L93
L84:
  mov    -0x4(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x20(%rbp),%rax
  add    %rax,%rdx
  mov    -0x18(%rbp),%rax
  mov    %rax,(%rdx)
  mov    -0x24(%rbp),%eax
  sub    $0x1,%eax
  cmp    %eax,-0x4(%rbp)
  jne    L28
  mov    -0x4(%rbp),%eax
  add    $0x1,%eax
  jmp    L93
L23:
  addq   $0x1,-0x18(%rbp)
L28:
  mov    -0x18(%rbp),%rax
  movzbl (%rax),%eax
  test   %al,%al
  je     L88
  mov    -0x18(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x7c,%al
  je     L88
  mov    -0x18(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x9,%al
  je     L88
  mov    -0x18(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0xa,%al
  jne    L23
L88:
  mov    -0x18(%rbp),%rax
  movzbl (%rax),%eax
  test   %al,%al
  jne    L146
  mov    -0x4(%rbp),%eax
  add    $0x1,%eax
  jmp    L93
L146:
  mov    -0x18(%rbp),%rax
  lea    0x1(%rax),%rdx
  mov    %rdx,-0x18(%rbp)
  movb   $0x0,(%rax)
  addl   $0x1,-0x4(%rbp)
L158:
  mov    -0x4(%rbp),%eax
  cmp    -0x24(%rbp),%eax
  jl     L85
  mov    $0xffffffff,%eax
L93:
  pop    %rbp
  ret
```

assistant: ```c
int SeparateIntoFields(char *s, char **fields, int max_fields) {
  int i;
  static char null_c = '\0';
  for (i = 0; i < max_fields; ++i)
    fields[i] = &null_c;
  for (i = 0; i < max_fields; ++i) {
    while (*s && (*s == '|' || *s == '\t' || *s == '\n'))
      ++s;
    if (!*s)
      return i;
    fields[i] = s;
    if (i == max_fields - 1)
      return i + 1;
    while (*s && *s != '|' && *s != '\t' && *s != '\n')
      ++s;
    if (!*s)
      return i + 1;
    *s++ = '\0';
  }
  return -1;
}
```
user: 请将以下的汇编代码转换成C语言代码:

```asm
<SeparateIntoFields>:
  endbr64
  mov    %rdi,%rax
  mov    %rsi,%r9
  test   %edx,%edx
  jle    L151
  mov    %rsi,%rcx
  lea    -0x1(%rdx),%r10d
  lea    0x8(%rsi,%r10,8),%rdi
  lea    D7(%rip),%rsi
L199:
  mov    %rsi,(%rcx)
  add    $0x8,%rcx
  cmp    %rdi,%rcx
  jne    L199
  mov    %edx,%r8d
  mov    $0x0,%edi
  jmp    L178
L37:
  add    $0x1,%rax
  movzbl (%rax),%edx
  test   %dl,%dl
  je     L190
L165:
  lea    -0x9(%rdx),%ecx
  cmp    $0x1,%cl
  jbe    L37
  cmp    $0x7c,%dl
  je     L37
  test   %dl,%dl
  je     L190
  mov    %rax,(%r9,%rdi,8)
  cmp    %r10,%rdi
  je     L139
  movzbl (%rax),%edx
  test   %dl,%dl
  setne  %sil
  cmp    $0x7c,%dl
  setne  %cl
  test   %cl,%sil
  je     L28
  lea    -0x9(%rdx),%ecx
  cmp    $0x1,%cl
  jbe    L28
L91:
  add    $0x1,%rax
  movzbl (%rax),%edx
  test   %dl,%dl
  setne  %sil
  cmp    $0x7c,%dl
  setne  %cl
  test   %cl,%sil
  je     L1
  lea    -0x9(%rdx),%ecx
  cmp    $0x1,%cl
  ja     L91
L1:
  mov    %rax,%rcx
L100:
  test   %dl,%dl
  je     L173
  lea    0x1(%rcx),%rax
  movb   $0x0,(%rcx)
  add    $0x1,%rdi
  cmp    %rdi,%r8
  je     L187
L178:
  mov    %edi,%r11d
  movzbl (%rax),%edx
  test   %dl,%dl
  jne    L165
L190:
  mov    %r11d,%eax
  ret
L28:
  mov    %rax,%rcx
  jmp    L100
L139:
  add    $0x1,%r11d
  jmp    L190
L173:
  add    $0x1,%r11d
  jmp    L190
L151:
  mov    $0xffffffff,%r11d
  jmp    L190
L187:
  mov    $0xffffffff,%r11d
  jmp    L190
```

assistant: ```c
int SeparateIntoFields(char *s, char **fields, int max_fields) {
  int i;
  static char null_c = '\0';
  for (i = 0; i < max_fields; ++i)
    fields[i] = &null_c;
  for (i = 0; i < max_fields; ++i) {
    while (*s && (*s == '|' || *s == '\t' || *s == '\n'))
      ++s;
    if (!*s)
      return i;
    fields[i] = s;
    if (i == max_fields - 1)
      return i + 1;
    while (*s && *s != '|' && *s != '\t' && *s != '\n')
      ++s;
    if (!*s)
      return i + 1;
    *s++ = '\0';
  }
  return -1;
}
```
user: 请将这段汇编代码片段转换成等效的C代码:

```asm
<SeparateIntoFields>:
  endbr64
  mov    %rdi,%rax
  mov    %rsi,%r8
  test   %edx,%edx
  jle    L75
  lea    -0x1(%rdx),%r10d
  mov    %rsi,%rcx
  lea    0x8(%rsi,%r10,8),%rdi
  lea    D3(%rip),%rsi
  nopl   (%rax)
L8:
  mov    %rsi,(%rcx)
  add    $0x8,%rcx
  cmp    %rdi,%rcx
  jne    L8
  mov    %edx,%edi
  xor    %esi,%esi
  nopl   0x0(%rax,%rax,1)
L82:
  movzbl (%rax),%edx
  mov    %esi,%r9d
  test   %dl,%dl
  je     L52
  nopw   0x0(%rax,%rax,1)
L99:
  lea    -0x9(%rdx),%ecx
  cmp    $0x1,%cl
  jbe    L60
  cmp    $0x7c,%dl
  jne    L121
L60:
  movzbl 0x1(%rax),%edx
  add    $0x1,%rax
  test   %dl,%dl
  jne    L99
L52:
  mov    %r9d,%eax
  ret
  nopl   (%rax)
L121:
  mov    %rax,(%r8,%rsi,8)
  cmp    %r10,%rsi
  je     L58
  movzbl (%rax),%edx
  cmp    $0x7c,%dl
  je     L27
  test   %dl,%dl
  jne    L139
  jmp    L27
  nopw   0x0(%rax,%rax,1)
L135:
  movzbl (%rax),%edx
  test   %dl,%dl
  je     L27
  cmp    $0x7c,%dl
  je     L27
L139:
  sub    $0x9,%edx
  mov    %rax,%rcx
  add    $0x1,%rax
  cmp    $0x1,%dl
  ja     L135
L29:
  add    $0x1,%rsi
  movb   $0x0,(%rcx)
  lea    0x1(%rcx),%rax
  cmp    %rdi,%rsi
  jne    L82
L75:
  mov    $0xffffffff,%r9d
  mov    %r9d,%eax
  ret
  nopl   (%rax)
L27:
  mov    %rax,%rcx
  test   %dl,%dl
  jne    L29
L58:
  add    $0x1,%r9d
  mov    %r9d,%eax
  ret
```

assistant: ```c
int SeparateIntoFields(char *s, char **fields, int max_fields) {
  int i;
  static char null_c = '\0';
  for (i = 0; i < max_fields; ++i)
    fields[i] = &null_c;
  for (i = 0; i < max_fields; ++i) {
    while (*s && (*s == '|' || *s == '\t' || *s == '\n'))
      ++s;
    if (!*s)
      return i;
    fields[i] = s;
    if (i == max_fields - 1)
      return i + 1;
    while (*s && *s != '|' && *s != '\t' && *s != '\n')
      ++s;
    if (!*s)
      return i + 1;
    *s++ = '\0';
  }
  return -1;
}
```
user: 请显示与下面列出的汇编代码相匹配的C语言实现:

```asm
<SeparateIntoFields>:
  endbr64
  mov    %rdi,%rax
  mov    %rsi,%rdi
  test   %edx,%edx
  jle    L135
  cmp    $0x1,%edx
  je     L121
  mov    %edx,%r8d
  lea    D18(%rip),%rsi
  mov    %rdi,%rcx
  shr    %r8d
  movq   %rsi,%xmm0
  sub    $0x1,%r8d
  punpcklqdq %xmm0,%xmm0
  shl    $0x4,%r8
  lea    0x10(%rdi,%r8,1),%r8
  nopl   0x0(%rax)
L42:
  movups %xmm0,(%rcx)
  add    $0x10,%rcx
  cmp    %rcx,%r8
  jne    L42
  mov    %edx,%ecx
  and    $0xfffffffe,%ecx
  test   $0x1,%dl
  je     L31
L124:
  movslq %ecx,%rcx
  mov    %rsi,(%rdi,%rcx,8)
L31:
  lea    -0x1(%rdx),%r10d
  mov    %edx,%r8d
  xor    %esi,%esi
  xchg   %ax,%ax
L27:
  movzbl (%rax),%edx
  mov    %esi,%r9d
  test   %dl,%dl
  je     L122
  nopw   0x0(%rax,%rax,1)
L173:
  lea    -0x9(%rdx),%ecx
  cmp    $0x1,%cl
  jbe    L157
  cmp    $0x7c,%dl
  jne    L43
L157:
  movzbl 0x1(%rax),%edx
  add    $0x1,%rax
  test   %dl,%dl
  jne    L173
L122:
  mov    %r9d,%eax
  ret
  nopl   (%rax)
L43:
  mov    %rax,(%rdi,%rsi,8)
  cmp    %rsi,%r10
  je     L176
  movzbl (%rax),%edx
  cmp    $0x7c,%dl
  je     L12
  test   %dl,%dl
  jne    L11
  jmp    L12
  nopw   0x0(%rax,%rax,1)
L134:
  movzbl (%rax),%edx
  test   %dl,%dl
  je     L12
  cmp    $0x7c,%dl
  je     L12
L11:
  sub    $0x9,%edx
  mov    %rax,%rcx
  add    $0x1,%rax
  cmp    $0x1,%dl
  ja     L134
L55:
  add    $0x1,%rsi
  movb   $0x0,(%rcx)
  lea    0x1(%rcx),%rax
  cmp    %rsi,%r8
  jne    L27
L135:
  mov    $0xffffffff,%r9d
  mov    %r9d,%eax
  ret
  nopl   (%rax)
L12:
  mov    %rax,%rcx
  test   %dl,%dl
  jne    L55
L176:
  add    $0x1,%r9d
  mov    %r9d,%eax
  ret
L121:
  xor    %ecx,%ecx
  lea    D18(%rip),%rsi
  jmp    L124
```

assistant: ```c
int SeparateIntoFields(char *s, char **fields, int max_fields) {
  int i;
  static char null_c = '\0';
  for (i = 0; i < max_fields; ++i)
    fields[i] = &null_c;
  for (i = 0; i < max_fields; ++i) {
    while (*s && (*s == '|' || *s == '\t' || *s == '\n'))
      ++s;
    if (!*s)
      return i;
    fields[i] = s;
    if (i == max_fields - 1)
      return i + 1;
    while (*s && *s != '|' && *s != '\t' && *s != '\n')
      ++s;
    if (!*s)
      return i + 1;
    *s++ = '\0';
  }
  return -1;
}
```
user: 提供的汇编代码用C语言表示会是什么样子：

```asm
<dumb_fht>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    %rdi,-0x38(%rbp)
  mov    %esi,-0x3c(%rbp)
  mov    -0x3c(%rbp),%eax
  mov    $0x1,%edx
  mov    %eax,%ecx
  shl    %cl,%edx
  mov    %edx,%eax
  mov    %eax,-0x1c(%rbp)
  movl   $0x0,-0x28(%rbp)
  jmp    L29
L58:
  mov    -0x28(%rbp),%eax
  mov    $0x1,%edx
  mov    %eax,%ecx
  shl    %cl,%edx
  mov    %edx,%eax
  mov    %eax,-0x18(%rbp)
  mov    -0x18(%rbp),%eax
  add    %eax,%eax
  mov    %eax,-0x14(%rbp)
  movl   $0x0,-0x24(%rbp)
  jmp    L22
L32:
  movl   $0x0,-0x20(%rbp)
  jmp    L18
L34:
  mov    -0x24(%rbp),%edx
  mov    -0x20(%rbp),%eax
  add    %edx,%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x38(%rbp),%rax
  add    %rdx,%rax
  movsd  (%rax),%xmm0
  movsd  %xmm0,-0x10(%rbp)
  mov    -0x24(%rbp),%edx
  mov    -0x20(%rbp),%eax
  add    %eax,%edx
  mov    -0x18(%rbp),%eax
  add    %edx,%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x38(%rbp),%rax
  add    %rdx,%rax
  movsd  (%rax),%xmm0
  movsd  %xmm0,-0x8(%rbp)
  mov    -0x24(%rbp),%edx
  mov    -0x20(%rbp),%eax
  add    %edx,%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x38(%rbp),%rax
  add    %rdx,%rax
  movsd  -0x10(%rbp),%xmm0
  addsd  -0x8(%rbp),%xmm0
  movsd  %xmm0,(%rax)
  mov    -0x24(%rbp),%edx
  mov    -0x20(%rbp),%eax
  add    %eax,%edx
  mov    -0x18(%rbp),%eax
  add    %edx,%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x38(%rbp),%rax
  add    %rdx,%rax
  movsd  -0x10(%rbp),%xmm0
  subsd  -0x8(%rbp),%xmm0
  movsd  %xmm0,(%rax)
  addl   $0x1,-0x20(%rbp)
L18:
  mov    -0x20(%rbp),%eax
  cmp    -0x18(%rbp),%eax
  jl     L34
  mov    -0x14(%rbp),%eax
  add    %eax,-0x24(%rbp)
L22:
  mov    -0x24(%rbp),%eax
  cmp    -0x1c(%rbp),%eax
  jl     L32
  addl   $0x1,-0x28(%rbp)
L29:
  mov    -0x28(%rbp),%eax
  cmp    -0x3c(%rbp),%eax
  jl     L58
  nop
  nop
  pop    %rbp
  ret
```

assistant: ```c
void dumb_fht(double *buf, int log_n) {
  int n = 1 << log_n;
  for (int i = 0; i < log_n; ++i) {
    int s1 = 1 << i;
    int s2 = s1 << 1;
    for (int j = 0; j < n; j += s2) {
      for (int k = 0; k < s1; ++k) {
        double u = buf[j + k];
        double v = buf[j + k + s1];
        buf[j + k] = u + v;
        buf[j + k + s1] = u - v;
      }
    }
  }
}
```
user: 提供的汇编代码用C语言表示会是什么样子:

```asm
<dumb_fht>:
  endbr64
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  mov    $0x1,%ebx
  mov    %esi,%ecx
  shl    %cl,%ebx
  test   %esi,%esi
  jle    L49
  mov    %rdi,%r12
  mov    %esi,%ebp
  mov    $0x0,%ecx
  mov    $0x1,%r13d
  add    $0x8,%r12
  jmp    L53
L5:
  movsd  (%rax),%xmm0
  movsd  (%rax,%rdx,8),%xmm1
  movapd %xmm0,%xmm2
  addsd  %xmm1,%xmm2
  movsd  %xmm2,(%rax)
  subsd  %xmm1,%xmm0
  movsd  %xmm0,(%rax,%rdx,8)
  add    $0x8,%rax
  cmp    %rsi,%rax
  jne    L5
L51:
  add    %r11d,%edi
  add    %r10,%rsi
  cmp    %edi,%ebx
  jle    L61
L32:
  lea    (%r8,%rsi,1),%rax
  test   %r9d,%r9d
  jg     L5
  jmp    L51
L61:
  add    $0x1,%ecx
  cmp    %ecx,%ebp
  je     L49
L53:
  mov    %r13d,%r9d
  shl    %cl,%r9d
  lea    (%r9,%r9,1),%r11d
  test   %ebx,%ebx
  jle    L61
  movslq %r11d,%r10
  shl    $0x3,%r10
  lea    -0x1(%r9),%r8d
  lea    (%r12,%r8,8),%rsi
  mov    $0x0,%edi
  not    %r8
  shl    $0x3,%r8
  movslq %r9d,%rdx
  jmp    L32
L49:
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
```

assistant: ```c
void dumb_fht(double *buf, int log_n) {
  int n = 1 << log_n;
  for (int i = 0; i < log_n; ++i) {
    int s1 = 1 << i;
    int s2 = s1 << 1;
    for (int j = 0; j < n; j += s2) {
      for (int k = 0; k < s1; ++k) {
        double u = buf[j + k];
        double v = buf[j + k + s1];
        buf[j + k] = u + v;
        buf[j + k + s1] = u - v;
      }
    }
  }
}
```