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

```asm
<df_to_index>:
  endbr64
  push   %rbp
  push   %rbx
  sub    $0x18,%rsp
  mov    %rdi,%rbp
  mov    %rsi,%rbx
  movss  %xmm0,0xc(%rsp)
  comiss D29(%rip),%xmm0
  setae  %dil
  movzbl %dil,%edi
  mov    $0x0,%eax
  call   <assert@plt>
  mov    %rbp,%rdi
  mov    $0x0,%eax
  call   <assert@plt>
  mov    %rbx,%rdi
  mov    $0x0,%eax
  call   <assert@plt>
  movss  D96(%rip),%xmm0
  movss  0xc(%rsp),%xmm5
  comiss %xmm5,%xmm0
  jb     L67
  movaps %xmm5,%xmm0
  subss  D29(%rip),%xmm0
L46:
  movaps %xmm0,%xmm3
  movss  D80(%rip),%xmm2
  movaps %xmm0,%xmm1
  andps  %xmm2,%xmm1
  movss  D17(%rip),%xmm4
  ucomiss %xmm1,%xmm4
  jbe    L57
  cvttss2si %xmm0,%eax
  pxor   %xmm1,%xmm1
  cvtsi2ss %eax,%xmm1
  movaps %xmm1,%xmm3
  cmpnless %xmm0,%xmm3
  movss  D29(%rip),%xmm4
  andps  %xmm4,%xmm3
  subss  %xmm3,%xmm1
  andnps %xmm0,%xmm2
  movaps %xmm1,%xmm3
  orps   %xmm2,%xmm3
L57:
  cvttss2si %xmm3,%eax
  cmp    $0x2c,%eax
  jg     L59
  pxor   %xmm1,%xmm1
  cvtsi2ss %eax,%xmm1
  subss  %xmm1,%xmm0
  movss  D29(%rip),%xmm1
  subss  %xmm0,%xmm1
L7:
  mov    %eax,0x0(%rbp)
  movss  %xmm1,(%rbx)
  add    $0x18,%rsp
  pop    %rbx
  pop    %rbp
  ret
L67:
  movss  D112(%rip),%xmm0
  movss  0xc(%rsp),%xmm6
  comiss %xmm6,%xmm0
  jb     L41
  subss  D96(%rip),%xmm6
  movaps %xmm6,%xmm0
  divss  D128(%rip),%xmm0
  addss  D109(%rip),%xmm0
  jmp    L46
L41:
  movss  D112(%rip),%xmm1
  movss  0xc(%rsp),%xmm0
  subss  %xmm1,%xmm0
  divss  %xmm1,%xmm0
  addss  D124(%rip),%xmm0
  jmp    L46
L59:
  mov    $0x2c,%eax
  pxor   %xmm1,%xmm1
  jmp    L7
```

tool_calls: name: unpack_data
arguments: data_tag: D29
data_type: byte[4]
name: unpack_data
arguments: data_tag: D96
data_type: byte[4]
name: unpack_data
arguments: data_tag: D80
data_type: byte[4]
name: unpack_data
arguments: data_tag: D17
data_type: byte[4]
name: unpack_data
arguments: data_tag: D112
data_type: byte[4]
name: unpack_data
arguments: data_tag: D128
data_type: byte[4]
name: unpack_data
arguments: data_tag: D109
data_type: byte[4]
name: unpack_data
arguments: data_tag: D124
data_type: byte[4]

tool: {"D29": [0x00,0x00,0x80,0x3f]}

tool: {"D96": [0x00,0x00,0xf0,0x41]}

tool: {"D80": [0xff,0xff,0xff,0x7f]}

tool: {"D17": [0x00,0x00,0x00,0x4b]}

tool: {"D112": [0x00,0x00,0xc8,0x42]}

tool: {"D128": [0x00,0x00,0x20,0x41]}

tool: {"D109": [0x00,0x00,0xe8,0x41]}

tool: {"D124": [0x00,0x00,0x10,0x42]}

assistant: ```c
void df_to_index(float df, int *index1_p, float *weight1_p) {
  int index1;
  float indexf;
  assert(df >= 1);
  assert(index1_p);
  assert(weight1_p);
  if (df <= 30) {
    indexf = df - 1;
  } else if (df <= 100) {
    indexf = (df - 30) / 10 + 29;
  } else {
    indexf = (df - 100) / 100 + 36;
  }
  index1 = (int)floor(indexf);
  if (index1 >= 45) {
    *index1_p = 44;
    *weight1_p = 0;
  } else {
    *index1_p = index1;
    *weight1_p = 1 - (indexf - index1);
  }
}
```
user: 请将以下的汇编代码转换成C语言代码:

```asm
<df_to_index>:
  endbr64
  push   %rbp
  mov    %rdi,%rbp
  push   %rbx
  mov    %rsi,%rbx
  sub    $0x18,%rsp
  comiss D69(%rip),%xmm0
  movss  %xmm0,0xc(%rsp)
  setae  %dil
  xor    %eax,%eax
  movzbl %dil,%edi
  call   <assert@plt>
  mov    %rbp,%rdi
  xor    %eax,%eax
  call   <assert@plt>
  xor    %eax,%eax
  mov    %rbx,%rdi
  call   <assert@plt>
  movss  D45(%rip),%xmm1
  movss  0xc(%rsp),%xmm0
  comiss %xmm0,%xmm1
  jb     L24
  subss  D69(%rip),%xmm0
L25:
  movss  D72(%rip),%xmm2
  movss  D18(%rip),%xmm4
  movaps %xmm0,%xmm1
  movaps %xmm0,%xmm3
  andps  %xmm2,%xmm1
  ucomiss %xmm1,%xmm4
  jbe    L38
  cvttss2si %xmm0,%eax
  pxor   %xmm1,%xmm1
  movss  D69(%rip),%xmm5
  andnps %xmm0,%xmm2
  cvtsi2ss %eax,%xmm1
  movaps %xmm1,%xmm3
  cmpnless %xmm0,%xmm3
  andps  %xmm5,%xmm3
  subss  %xmm3,%xmm1
  movaps %xmm1,%xmm3
  orps   %xmm2,%xmm3
L38:
  cvttss2si %xmm3,%eax
  cmp    $0x2c,%eax
  jg     L36
  pxor   %xmm1,%xmm1
  mov    %eax,0x0(%rbp)
  cvtsi2ss %eax,%xmm1
  subss  %xmm1,%xmm0
  movss  D69(%rip),%xmm1
  subss  %xmm0,%xmm1
  movss  %xmm1,(%rbx)
  add    $0x18,%rsp
  pop    %rbx
  pop    %rbp
  ret
  nopl   0x0(%rax,%rax,1)
L24:
  movss  D22(%rip),%xmm2
  comiss %xmm0,%xmm2
  jb     L0
  subss  %xmm1,%xmm0
  divss  D68(%rip),%xmm0
  addss  D84(%rip),%xmm0
  jmp    L25
  cs nopw 0x0(%rax,%rax,1)
L36:
  mov    $0x2c,%eax
  pxor   %xmm1,%xmm1
  mov    %eax,0x0(%rbp)
  movss  %xmm1,(%rbx)
  add    $0x18,%rsp
  pop    %rbx
  pop    %rbp
  ret
  nopw   0x0(%rax,%rax,1)
L0:
  subss  %xmm2,%xmm0
  divss  %xmm2,%xmm0
  addss  D42(%rip),%xmm0
  jmp    L25
```

tool_calls: name: parse_data
arguments: data_label: D69
type_infered: byte[4]
name: parse_data
arguments: data_label: D45
type_infered: byte[4]
name: parse_data
arguments: data_label: D72
type_infered: byte[4]
name: parse_data
arguments: data_label: D18
type_infered: byte[4]
name: parse_data
arguments: data_label: D22
type_infered: byte[4]
name: parse_data
arguments: data_label: D68
type_infered: byte[4]
name: parse_data
arguments: data_label: D84
type_infered: byte[4]
name: parse_data
arguments: data_label: D42
type_infered: byte[4]

tool: {"D69": [0x00,0x00,0x80,0x3f]}

tool: {"D45": [0x00,0x00,0xf0,0x41]}

tool: {"D72": [0xff,0xff,0xff,0x7f]}

tool: {"D18": [0x00,0x00,0x00,0x4b]}

tool: {"D22": [0x00,0x00,0xc8,0x42]}

tool: {"D68": [0x00,0x00,0x20,0x41]}

tool: {"D84": [0x00,0x00,0xe8,0x41]}

tool: {"D42": [0x00,0x00,0x10,0x42]}

assistant: ```c
void df_to_index(float df, int *index1_p, float *weight1_p) {
  int index1;
  float indexf;
  assert(df >= 1);
  assert(index1_p);
  assert(weight1_p);
  if (df <= 30) {
    indexf = df - 1;
  } else if (df <= 100) {
    indexf = (df - 30) / 10 + 29;
  } else {
    indexf = (df - 100) / 100 + 36;
  }
  index1 = (int)floor(indexf);
  if (index1 >= 45) {
    *index1_p = 44;
    *weight1_p = 0;
  } else {
    *index1_p = index1;
    *weight1_p = 1 - (indexf - index1);
  }
}
```
user: 请将这段汇编代码片段转换成等效的C代码:

```asm
<df_to_index>:
  endbr64
  push   %rbp
  mov    %rdi,%rbp
  push   %rbx
  mov    %rsi,%rbx
  sub    $0x18,%rsp
  comiss D81(%rip),%xmm0
  movss  %xmm0,0xc(%rsp)
  setae  %dil
  xor    %eax,%eax
  movzbl %dil,%edi
  call   <assert@plt>
  mov    %rbp,%rdi
  xor    %eax,%eax
  call   <assert@plt>
  xor    %eax,%eax
  mov    %rbx,%rdi
  call   <assert@plt>
  movss  D25(%rip),%xmm1
  movss  0xc(%rsp),%xmm0
  comiss %xmm0,%xmm1
  jb     L34
  subss  D81(%rip),%xmm0
L47:
  movss  D79(%rip),%xmm2
  movss  D94(%rip),%xmm4
  movaps %xmm0,%xmm1
  movaps %xmm0,%xmm3
  andps  %xmm2,%xmm1
  ucomiss %xmm1,%xmm4
  jbe    L5
  cvttss2si %xmm0,%eax
  pxor   %xmm1,%xmm1
  movss  D81(%rip),%xmm5
  andnps %xmm0,%xmm2
  cvtsi2ss %eax,%xmm1
  movaps %xmm1,%xmm3
  cmpnless %xmm0,%xmm3
  andps  %xmm5,%xmm3
  subss  %xmm3,%xmm1
  movaps %xmm1,%xmm3
  orps   %xmm2,%xmm3
L5:
  cvttss2si %xmm3,%eax
  cmp    $0x2c,%eax
  jg     L42
  pxor   %xmm1,%xmm1
  mov    %eax,0x0(%rbp)
  cvtsi2ss %eax,%xmm1
  subss  %xmm1,%xmm0
  movss  D81(%rip),%xmm1
  subss  %xmm0,%xmm1
  movss  %xmm1,(%rbx)
  add    $0x18,%rsp
  pop    %rbx
  pop    %rbp
  ret
  nopl   0x0(%rax,%rax,1)
L34:
  movss  D82(%rip),%xmm2
  comiss %xmm0,%xmm2
  jb     L30
  subss  %xmm1,%xmm0
  divss  D47(%rip),%xmm0
  addss  D85(%rip),%xmm0
  jmp    L47
  cs nopw 0x0(%rax,%rax,1)
L42:
  mov    $0x2c,%eax
  pxor   %xmm1,%xmm1
  mov    %eax,0x0(%rbp)
  movss  %xmm1,(%rbx)
  add    $0x18,%rsp
  pop    %rbx
  pop    %rbp
  ret
  nopw   0x0(%rax,%rax,1)
L30:
  subss  %xmm2,%xmm0
  divss  %xmm2,%xmm0
  addss  D14(%rip),%xmm0
  jmp    L47
```

tool_calls: name: extract_symbolic_data
arguments: tag: D81
type: byte[4]
name: extract_symbolic_data
arguments: tag: D25
type: byte[4]
name: extract_symbolic_data
arguments: tag: D79
type: byte[4]
name: extract_symbolic_data
arguments: tag: D94
type: byte[4]
name: extract_symbolic_data
arguments: tag: D82
type: byte[4]
name: extract_symbolic_data
arguments: tag: D47
type: byte[4]
name: extract_symbolic_data
arguments: tag: D85
type: byte[4]
name: extract_symbolic_data
arguments: tag: D14
type: byte[4]

tool: {"D81": [0x00,0x00,0x80,0x3f]}

tool: {"D25": [0x00,0x00,0xf0,0x41]}

tool: {"D79": [0xff,0xff,0xff,0x7f]}

tool: {"D94": [0x00,0x00,0x00,0x4b]}

tool: {"D82": [0x00,0x00,0xc8,0x42]}

tool: {"D47": [0x00,0x00,0x20,0x41]}

tool: {"D85": [0x00,0x00,0xe8,0x41]}

tool: {"D14": [0x00,0x00,0x10,0x42]}

assistant: ```c
void df_to_index(float df, int *index1_p, float *weight1_p) {
  int index1;
  float indexf;
  assert(df >= 1);
  assert(index1_p);
  assert(weight1_p);
  if (df <= 30) {
    indexf = df - 1;
  } else if (df <= 100) {
    indexf = (df - 30) / 10 + 29;
  } else {
    indexf = (df - 100) / 100 + 36;
  }
  index1 = (int)floor(indexf);
  if (index1 >= 45) {
    *index1_p = 44;
    *weight1_p = 0;
  } else {
    *index1_p = index1;
    *weight1_p = 1 - (indexf - index1);
  }
}
```
user: What would the C source look like for the assembly code provided here?

```asm
<storeUserInteger>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x10,%rsp
  mov    %rdi,-0x8(%rbp)
  mov    -0x8(%rbp),%rax
  mov    %rax,%rsi
  lea    D1(%rip),%rax
  mov    %rax,%rdi
  call   <scanf@plt>
  mov    $0x0,%eax
  call   <waitForInput@plt>
  nop
  leave
  ret
```

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

tool: D1: %i

assistant: ```c
void storeUserInteger(int *integer) {
  scanf("%i", integer);
  waitForInput();
  return;
}
```
user: What is the c source code of the assembly code below:

```asm
<storeUserInteger>:
  endbr64
  sub    $0x8,%rsp
  mov    %rdi,%rsi
  lea    D5(%rip),%rdi
  call   <scanf@plt>
  mov    $0x0,%eax
  call   <waitForInput@plt>
  add    $0x8,%rsp
  ret
```

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

tool: D5: %i

assistant: ```c
void storeUserInteger(int *integer) {
  scanf("%i", integer);
  waitForInput();
  return;
}
```
user: What is the c source code of the assembly code below?

```asm
<storeUserInteger>:
  endbr64
  sub    $0x8,%rsp
  mov    %rdi,%rsi
  lea    D7(%rip),%rdi
  call   <scanf@plt>
  xor    %eax,%eax
  add    $0x8,%rsp
  jmp    1060 <waitForInput@plt>
```

tool_calls: name: parse_data
arguments: data_tag: D7
datatype: string

tool: D7: %i

assistant: ```c
void storeUserInteger(int *integer) {
  scanf("%i", integer);
  waitForInput();
  return;
}
```
user: Please show me the C implementation that matches the assembly code listed below:

```asm
<storeUserInteger>:
  endbr64
  sub    $0x8,%rsp
  mov    %rdi,%rsi
  lea    D0(%rip),%rdi
  call   <scanf@plt>
  xor    %eax,%eax
  add    $0x8,%rsp
  jmp    1060 <waitForInput@plt>
```

tool_calls: name: disassemble_data
arguments: data_tag: D0
datatype: string

tool: D0: %i

assistant: ```c
void storeUserInteger(int *integer) {
  scanf("%i", integer);
  waitForInput();
  return;
}
```
user: 请将以下的汇编代码转换成C语言代码：

```asm
<print>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x1000,%rsp
  orq    $0x0,(%rsp)
  sub    $0x30,%rsp
  mov    %rdi,-0x1028(%rbp)
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
  lea    -0x1010(%rbp),%rax
  mov    %rax,-0x1018(%rbp)
  lea    -0x1010(%rbp),%rax
  mov    $0x1000,%edx
  mov    $0x0,%esi
  mov    %rax,%rdi
  call   <memset@plt>
  jmp    L68
L24:
  mov    -0x1028(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x13,%al
  jg     L27
  mov    -0x1018(%rbp),%rax
  lea    D31(%rip),%rdx
  mov    %rdx,%rsi
  mov    %rax,%rdi
  call   <strcpy@plt>
  addq   $0x6,-0x1018(%rbp)
  mov    -0x1028(%rbp),%rax
  lea    0x1(%rax),%rdx
  mov    %rdx,-0x1028(%rbp)
  movzbl (%rax),%eax
  lea    0x30(%rax),%ecx
  mov    -0x1018(%rbp),%rax
  lea    0x1(%rax),%rdx
  mov    %rdx,-0x1018(%rbp)
  mov    %ecx,%edx
  mov    %dl,(%rax)
  mov    -0x1018(%rbp),%rax
  lea    0x1(%rax),%rdx
  mov    %rdx,-0x1018(%rbp)
  movb   $0x7e,(%rax)
  jmp    L68
L27:
  mov    -0x1028(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x22,%al
  jne    L17
  mov    -0x1018(%rbp),%rax
  lea    0x1(%rax),%rdx
  mov    %rdx,-0x1018(%rbp)
  movb   $0x5c,(%rax)
  mov    -0x1028(%rbp),%rdx
  lea    0x1(%rdx),%rax
  mov    %rax,-0x1028(%rbp)
  mov    -0x1018(%rbp),%rax
  lea    0x1(%rax),%rcx
  mov    %rcx,-0x1018(%rbp)
  movzbl (%rdx),%edx
  mov    %dl,(%rax)
  jmp    L68
L17:
  mov    -0x1028(%rbp),%rdx
  lea    0x1(%rdx),%rax
  mov    %rax,-0x1028(%rbp)
  mov    -0x1018(%rbp),%rax
  lea    0x1(%rax),%rcx
  mov    %rcx,-0x1018(%rbp)
  movzbl (%rdx),%edx
  mov    %dl,(%rax)
L68:
  mov    -0x1028(%rbp),%rax
  movzbl (%rax),%eax
  test   %al,%al
  jne    L24
  mov    D17(%rip),%eax
  lea    0x1(%rax),%edx
  mov    %edx,D15(%rip)
  lea    -0x1010(%rbp),%rdx
  mov    %eax,%esi
  lea    D15(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
  nop
  mov    -0x8(%rbp),%rax
  sub    %fs:0x28,%rax
  je     L44
  call   <__stack_chk_fail@plt>
L44:
  leave
  ret
```

tool_calls: name: parse_data
arguments: label: D31
type_infered: string
name: parse_data
arguments: label: D15
type_infered: string

tool: D31: ~color

tool: D15: %d %s


assistant: ```c
void print(char *str) {
  char buf[4096];
  char *b = buf;
  static int count = 1;
  memset(buf, 0, sizeof(buf));
  while (*str) {
    if (*str < 20) {
      strcpy(b, "~color");
      b += 6;
      *b++ = *str++ + '0';
      *b++ = '~';
    } else if (*str == '"') {
      *b++ = '\\';
      *b++ = *str++;
    } else {
      *b++ = *str++;
    }
  }
  printf("%d %s\n", count++, buf);
}
```
user: 提供的汇编代码用C语言表示会是什么样子:

```asm
<print>:
  endbr64
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x1000,%rsp
  orq    $0x0,(%rsp)
  sub    $0x10,%rsp
  mov    %rdi,%rbx
  mov    %fs:0x28,%rax
  mov    %rax,0x1008(%rsp)
  xor    %eax,%eax
  mov    %rsp,%rdi
  mov    $0x1000,%edx
  mov    $0x0,%esi
  call   <memset@plt>
  movzbl (%rbx),%eax
  test   %al,%al
  je     L62
  add    $0x1,%rbx
  mov    %rsp,%rbp
  lea    D37(%rip),%r12
  jmp    L17
L79:
  mov    %r12,%rsi
  mov    %rbp,%rdi
  call   <strcpy@plt>
  mov    %rbx,%rdx
  movzbl -0x1(%rbx),%eax
  add    $0x30,%eax
  mov    %al,0x6(%rbp)
  movb   $0x7e,0x7(%rbp)
  lea    0x8(%rbp),%rbp
L2:
  movzbl (%rdx),%eax
  add    $0x1,%rbx
  test   %al,%al
  je     L62
L17:
  cmp    $0x13,%al
  jle    L79
  cmp    $0x22,%al
  je     L43
  mov    %rbx,%rdx
  mov    %al,0x0(%rbp)
  lea    0x1(%rbp),%rbp
  jmp    L2
L43:
  movb   $0x5c,0x0(%rbp)
  mov    %rbx,%rdx
  movb   $0x22,0x1(%rbp)
  lea    0x2(%rbp),%rbp
  jmp    L2
L62:
  mov    D31(%rip),%esi
  lea    0x1(%rsi),%eax
  mov    %eax,D13(%rip)
  mov    %rsp,%rdx
  lea    D13(%rip),%rdi
  call   <printf@plt>
  mov    0x1008(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L48
  add    $0x1010,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  ret
L48:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: unpack_data
arguments: label: D37
type_guessed: string
name: unpack_data
arguments: label: D13
type_guessed: string

tool: D37: ~color

tool: D13: %d %s


assistant: ```c
void print(char *str) {
  char buf[4096];
  char *b = buf;
  static int count = 1;
  memset(buf, 0, sizeof(buf));
  while (*str) {
    if (*str < 20) {
      strcpy(b, "~color");
      b += 6;
      *b++ = *str++ + '0';
      *b++ = '~';
    } else if (*str == '"') {
      *b++ = '\\';
      *b++ = *str++;
    } else {
      *b++ = *str++;
    }
  }
  printf("%d %s\n", count++, buf);
}
```
user: What would the C source look like for the assembly code provided here?

```asm
<cistrncmp>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    %rdi,-0x18(%rbp)
  mov    %rsi,-0x20(%rbp)
  mov    %edx,-0x24(%rbp)
  jmp    L45
L85:
  mov    -0x18(%rbp),%rax
  lea    0x1(%rax),%rdx
  mov    %rdx,-0x18(%rbp)
  movzbl (%rax),%eax
  movsbl %al,%eax
  mov    %eax,-0x8(%rbp)
  mov    -0x20(%rbp),%rax
  lea    0x1(%rax),%rdx
  mov    %rdx,-0x20(%rbp)
  movzbl (%rax),%eax
  movsbl %al,%eax
  mov    %eax,-0x4(%rbp)
  subl   $0x1,-0x24(%rbp)
  cmpl   $0x40,-0x8(%rbp)
  jbe    L75
  cmpl   $0x5a,-0x8(%rbp)
  ja     L75
  addl   $0x20,-0x8(%rbp)
L75:
  cmpl   $0x40,-0x4(%rbp)
  jbe    L10
  cmpl   $0x5a,-0x4(%rbp)
  ja     L10
  addl   $0x20,-0x4(%rbp)
L10:
  mov    -0x4(%rbp),%eax
  sub    %eax,-0x8(%rbp)
  cmpl   $0x0,-0x8(%rbp)
  je     L1
  mov    -0x8(%rbp),%eax
  jmp    L50
L1:
  cmpl   $0x0,-0x4(%rbp)
  je     L73
L45:
  cmpl   $0x0,-0x24(%rbp)
  jg     L85
  jmp    L11
L73:
  nop
L11:
  mov    $0x0,%eax
L50:
  pop    %rbp
  ret
```

assistant: ```c
int cistrncmp(char *a, char *b, int n) {
  unsigned ac, bc;
  while (n > 0) {
    ac = *a++;
    bc = *b++;
    n--;
    if (ac >= 'A' && ac <= 'Z')
      ac = 'a' + (ac - 'A');
    if (bc >= 'A' && bc <= 'Z')
      bc = 'a' + (bc - 'A');
    ac -= bc;
    if (ac)
      return ac;
    if (bc == 0)
      break;
  }
  return 0;
}
```
user: Demonstrate the C code that generates the assembly output below:

```asm
<cistrncmp>:
  endbr64
  mov    %rsi,%rcx
  add    %esi,%edx
  mov    $0xffffffe0,%r10d
  jmp    L14
L8:
  sub    %esi,%eax
  jne    L24
  test   %esi,%esi
  je     L18
L14:
  mov    %edx,%eax
  sub    %ecx,%eax
  test   %eax,%eax
  jle    L26
  add    $0x1,%rdi
  movsbl -0x1(%rdi),%eax
  add    $0x1,%rcx
  movsbl -0x1(%rcx),%esi
  lea    -0x41(%rax),%r9d
  lea    0x20(%rax),%r8d
  cmp    $0x1a,%r9d
  cmovb  %r8d,%eax
  lea    -0x41(%rsi),%r8d
  cmp    $0x19,%r8d
  ja     L8
  mov    %r10d,%r8d
  sub    %esi,%r8d
  add    %r8d,%eax
  je     L14
  ret
L26:
  mov    $0x0,%eax
  ret
L18:
  mov    $0x0,%eax
L24:
  ret
```

assistant: ```c
int cistrncmp(char *a, char *b, int n) {
  unsigned ac, bc;
  while (n > 0) {
    ac = *a++;
    bc = *b++;
    n--;
    if (ac >= 'A' && ac <= 'Z')
      ac = 'a' + (ac - 'A');
    if (bc >= 'A' && bc <= 'Z')
      bc = 'a' + (bc - 'A');
    ac -= bc;
    if (ac)
      return ac;
    if (bc == 0)
      break;
  }
  return 0;
}
```
user: Please show me the C implementation that matches the assembly code listed below:

```asm
<cistrncmp>:
  endbr64
  mov    %rdi,%r10
  test   %edx,%edx
  jle    L52
  movslq %edx,%rdx
  xor    %ecx,%ecx
  mov    $0xffffffe0,%r11d
  jmp    L19
  nopl   0x0(%rax,%rax,1)
L62:
  mov    %r11d,%r8d
  sub    %edi,%r8d
  add    %r8d,%eax
  jne    L11
L17:
  add    $0x1,%rcx
  cmp    %rcx,%rdx
  je     L52
L19:
  movsbl (%r10,%rcx,1),%eax
  movsbl (%rsi,%rcx,1),%edi
  lea    -0x41(%rax),%r9d
  lea    0x20(%rax),%r8d
  cmp    $0x1a,%r9d
  cmovb  %r8d,%eax
  lea    -0x41(%rdi),%r8d
  cmp    $0x19,%r8d
  jbe    L62
  sub    %edi,%eax
  jne    L0
  test   %edi,%edi
  jne    L17
L52:
  xor    %eax,%eax
L0:
  ret
  nopw   0x0(%rax,%rax,1)
L11:
  ret
```

assistant: ```c
int cistrncmp(char *a, char *b, int n) {
  unsigned ac, bc;
  while (n > 0) {
    ac = *a++;
    bc = *b++;
    n--;
    if (ac >= 'A' && ac <= 'Z')
      ac = 'a' + (ac - 'A');
    if (bc >= 'A' && bc <= 'Z')
      bc = 'a' + (bc - 'A');
    ac -= bc;
    if (ac)
      return ac;
    if (bc == 0)
      break;
  }
  return 0;
}
```
user: 请从给定的汇编指令推导出C源代码:

```asm
<cistrncmp>:
  endbr64
  mov    %rdi,%r10
  test   %edx,%edx
  jle    L0
  movslq %edx,%rdx
  xor    %ecx,%ecx
  mov    $0xffffffe0,%r11d
  jmp    L20
  nopl   0x0(%rax,%rax,1)
L9:
  mov    %r11d,%r8d
  sub    %edi,%r8d
  add    %r8d,%eax
  jne    L61
L31:
  add    $0x1,%rcx
  cmp    %rcx,%rdx
  je     L0
L20:
  movsbl (%r10,%rcx,1),%eax
  movsbl (%rsi,%rcx,1),%edi
  lea    -0x41(%rax),%r9d
  lea    0x20(%rax),%r8d
  cmp    $0x1a,%r9d
  cmovb  %r8d,%eax
  lea    -0x41(%rdi),%r8d
  cmp    $0x19,%r8d
  jbe    L9
  sub    %edi,%eax
  jne    L35
  test   %edi,%edi
  jne    L31
L0:
  xor    %eax,%eax
L35:
  ret
  nopw   0x0(%rax,%rax,1)
L61:
  ret
```

assistant: ```c
int cistrncmp(char *a, char *b, int n) {
  unsigned ac, bc;
  while (n > 0) {
    ac = *a++;
    bc = *b++;
    n--;
    if (ac >= 'A' && ac <= 'Z')
      ac = 'a' + (ac - 'A');
    if (bc >= 'A' && bc <= 'Z')
      bc = 'a' + (bc - 'A');
    ac -= bc;
    if (ac)
      return ac;
    if (bc == 0)
      break;
  }
  return 0;
}
```
user: 请显示与下面列出的汇编代码相匹配的C语言实现：

```asm
<utc_offset_hour_min_pos_parse>:
  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)
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
  movq   $0x0,-0x10(%rbp)
  mov    -0x10(%rbp),%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  cmp    $0x55,%al
  jne    L26
  mov    -0x10(%rbp),%rax
  add    $0x1,%rax
  mov    %rax,-0x10(%rbp)
L26:
  mov    -0x10(%rbp),%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  cmp    $0x54,%al
  jne    L34
  mov    -0x10(%rbp),%rax
  add    $0x1,%rax
  mov    %rax,-0x10(%rbp)
L34:
  mov    -0x10(%rbp),%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  cmp    $0x43,%al
  jne    L2
  mov    -0x10(%rbp),%rax
  add    $0x1,%rax
  mov    %rax,-0x10(%rbp)
L2:
  mov    -0x10(%rbp),%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  cmp    $0x2b,%al
  jne    L56
  mov    -0x30(%rbp),%rax
  movl   $0x1,(%rax)
  mov    -0x10(%rbp),%rax
  add    $0x1,%rax
  mov    %rax,-0x10(%rbp)
  jmp    L51
L56:
  mov    -0x10(%rbp),%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  cmp    $0x2d,%al
  jne    L39
  mov    -0x30(%rbp),%rax
  movl   $0x0,(%rax)
  mov    -0x10(%rbp),%rax
  add    $0x1,%rax
  mov    %rax,-0x10(%rbp)
  jmp    L51
L39:
  mov    -0x30(%rbp),%rax
  movl   $0x1,(%rax)
L51:
  lea    -0x10(%rbp),%rcx
  mov    -0x18(%rbp),%rax
  mov    $0x2,%edx
  mov    %rcx,%rsi
  mov    %rax,%rdi
  call   <utc_offset_scan_for_int@plt>
  mov    -0x20(%rbp),%rdx
  mov    %rax,(%rdx)
  mov    -0x10(%rbp),%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  cmp    $0x3a,%al
  jne    L84
  mov    -0x10(%rbp),%rax
  add    $0x1,%rax
  mov    %rax,-0x10(%rbp)
  lea    -0x10(%rbp),%rcx
  mov    -0x18(%rbp),%rax
  mov    $0x2,%edx
  mov    %rcx,%rsi
  mov    %rax,%rdi
  call   <utc_offset_scan_for_int@plt>
  mov    -0x28(%rbp),%rdx
  mov    %rax,(%rdx)
L84:
  mov    $0x1,%eax
  mov    -0x8(%rbp),%rdx
  sub    %fs:0x28,%rdx
  je     L12
  call   <__stack_chk_fail@plt>
L12:
  leave
  ret
```

assistant: ```c
bool utc_offset_hour_min_pos_parse(const char *utc_offset_str, uint16_t *hours, uint16_t *minutes, bool *positive_offset) {
  uint16_t pos = 0;
  if (utc_offset_str[pos] == 'U')
    pos++;
  if (utc_offset_str[pos] == 'T')
    pos++;
  if (utc_offset_str[pos] == 'C')
    pos++;
  if (utc_offset_str[pos] == '+') {
    *positive_offset = true;
    pos++;
  } else if (utc_offset_str[pos] == '-') {
    *positive_offset = false;
    pos++;
  } else {
    *positive_offset = true;
  }
  *hours = utc_offset_scan_for_int(utc_offset_str, &pos, 2);
  if (utc_offset_str[pos] == ':') {
    pos++;
    *minutes = utc_offset_scan_for_int(utc_offset_str, &pos, 2);
  }
  return true;
}
```