ylfeng/ReF-Decompile-dataset huggingface dataset:
user: 请将这段汇编代码片段转换成等效的C代码:

```asm
<strrchr>:
  endbr64
  mov    %rdi,%rax
  nopw   0x0(%rax,%rax,1)
L32:
  movsbl (%rax),%edx
  add    $0x1,%rax
  test   %dl,%dl
  jne    L32
  sub    $0x1,%rax
  cmp    %rax,%rdi
  je     L26
  nopl   0x0(%rax)
L15:
  cmp    %edx,%esi
  je     L25
  movsbl -0x1(%rax),%edx
  sub    $0x1,%rax
  cmp    %rax,%rdi
  jne    L15
L26:
  cmp    %edx,%esi
  mov    $0x0,%edx
  cmovne %rdx,%rax
L25:
  ret
```

assistant: ```c
char *strrchr(const char *string, int ch) {
  const char *start = string;
  while (*string++)
    ;
  while (--string != start && *string != ch)
    ;
  if (*string == ch)
    return ((char *)string);
  return ((void *)0);
}
```
user: 请将这段汇编代码片段转换成等效的C代码:

```asm
<show_timestamp>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x30,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
  lea    -0x30(%rbp),%rax
  mov    $0x0,%esi
  mov    %rax,%rdi
  call   <gettimeofday@plt>
  lea    -0x20(%rbp),%rax
  lea    -0x30(%rbp),%rdx
  add    $0x8,%rdx
  mov    %rax,%rsi
  mov    %rdx,%rdi
  call   <localtime_r@plt>
  mov    -0x30(%rbp),%rax
  mov    %eax,%r9d
  mov    -0xc(%rbp),%ecx
  mov    -0x10(%rbp),%r8d
  mov    -0x14(%rbp),%edi
  mov    -0x18(%rbp),%eax
  mov    -0x1c(%rbp),%edx
  add    $0x1,%edx
  mov    -0x20(%rbp),%esi
  add    $0x76c,%esi
  push   %r9
  push   %rcx
  mov    %r8d,%r9d
  mov    %edi,%r8d
  mov    %eax,%ecx
  lea    D3(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
  add    $0x10,%rsp
  nop
  mov    -0x8(%rbp),%rax
  sub    %fs:0x28,%rax
  je     L8
  call   <__stack_chk_fail@plt>
L8:
  leave
  ret
```

tool_calls: name: disassemble_data
arguments: label: D3
data_type: string

tool: D3: %04d/%02d/%02d %02d:%02d:%02d.%06d

assistant: ```c
void show_timestamp(void) {
  struct timeval tv;
  struct tm tm;
  gettimeofday(&tv, NULL);
  localtime_r(&tv.tv_sec, &tm);
  printf("%04d/%02d/%02d %02d:%02d:%02d.%06d", tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday, tm.tm_hour, tm.tm_min, tm.tm_sec, (int)tv.tv_usec);
  return;
}
```
user: Translate the below assembly code into C programming language:

```asm
<show_timestamp>:
  endbr64
  sub    $0x38,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x28(%rsp)
  xor    %eax,%eax
  mov    %rsp,%rdi
  mov    $0x0,%esi
  call   <gettimeofday@plt>
  lea    0x10(%rsp),%rsi
  lea    0x8(%rsp),%rdi
  call   <localtime_r@plt>
  mov    0x14(%rsp),%eax
  lea    0x1(%rax),%edx
  mov    0x10(%rsp),%eax
  lea    0x76c(%rax),%esi
  mov    (%rsp),%rax
  push   %rax
  mov    0x2c(%rsp),%eax
  push   %rax
  mov    0x30(%rsp),%r9d
  mov    0x2c(%rsp),%r8d
  mov    0x28(%rsp),%ecx
  lea    D8(%rip),%rdi
  call   <printf@plt>
  add    $0x10,%rsp
  mov    0x28(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L2
  add    $0x38,%rsp
  ret
L2:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: unpack_data
arguments: label: D8
data_type: string

tool: D8: %04d/%02d/%02d %02d:%02d:%02d.%06d

assistant: ```c
void show_timestamp(void) {
  struct timeval tv;
  struct tm tm;
  gettimeofday(&tv, NULL);
  localtime_r(&tv.tv_sec, &tm);
  printf("%04d/%02d/%02d %02d:%02d:%02d.%06d", tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday, tm.tm_hour, tm.tm_min, tm.tm_sec, (int)tv.tv_usec);
  return;
}
```
user: Demonstrate the C code that generates the assembly output below:

```asm
<show_timestamp>:
  endbr64
  sub    $0x38,%rsp
  xor    %esi,%esi
  mov    %fs:0x28,%rax
  mov    %rax,0x28(%rsp)
  xor    %eax,%eax
  mov    %rsp,%rdi
  call   <gettimeofday@plt>
  lea    0x10(%rsp),%rsi
  lea    0x8(%rsp),%rdi
  call   <localtime_r@plt>
  mov    0x14(%rsp),%eax
  lea    D7(%rip),%rdi
  lea    0x1(%rax),%edx
  mov    0x10(%rsp),%eax
  lea    0x76c(%rax),%esi
  mov    (%rsp),%rax
  push   %rax
  mov    0x2c(%rsp),%eax
  push   %rax
  mov    0x30(%rsp),%r9d
  mov    0x2c(%rsp),%r8d
  mov    0x28(%rsp),%ecx
  call   <printf@plt>
  pop    %rax
  pop    %rdx
  mov    0x28(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L8
  add    $0x38,%rsp
  ret
L8:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: read_data
arguments: label: D7
type_guessed: string

tool: D7: %04d/%02d/%02d %02d:%02d:%02d.%06d

assistant: ```c
void show_timestamp(void) {
  struct timeval tv;
  struct tm tm;
  gettimeofday(&tv, NULL);
  localtime_r(&tv.tv_sec, &tm);
  printf("%04d/%02d/%02d %02d:%02d:%02d.%06d", tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday, tm.tm_hour, tm.tm_min, tm.tm_sec, (int)tv.tv_usec);
  return;
}
```
user: 下面的汇编指令对应的C源代码是什么:

```asm
<show_timestamp>:
  endbr64
  sub    $0x38,%rsp
  xor    %esi,%esi
  mov    %fs:0x28,%rax
  mov    %rax,0x28(%rsp)
  xor    %eax,%eax
  mov    %rsp,%rdi
  call   <gettimeofday@plt>
  lea    0x10(%rsp),%rsi
  lea    0x8(%rsp),%rdi
  call   <localtime_r@plt>
  mov    0x14(%rsp),%eax
  lea    D1(%rip),%rdi
  lea    0x1(%rax),%edx
  mov    0x10(%rsp),%eax
  lea    0x76c(%rax),%esi
  mov    (%rsp),%rax
  push   %rax
  mov    0x2c(%rsp),%eax
  push   %rax
  mov    0x30(%rsp),%r9d
  mov    0x2c(%rsp),%r8d
  mov    0x28(%rsp),%ecx
  call   <printf@plt>
  pop    %rax
  pop    %rdx
  mov    0x28(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L2
  add    $0x38,%rsp
  ret
L2:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: disassemble_data
arguments: tag: D1
data_type: string

tool: D1: %04d/%02d/%02d %02d:%02d:%02d.%06d

assistant: ```c
void show_timestamp(void) {
  struct timeval tv;
  struct tm tm;
  gettimeofday(&tv, NULL);
  localtime_r(&tv.tv_sec, &tm);
  printf("%04d/%02d/%02d %02d:%02d:%02d.%06d", tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday, tm.tm_hour, tm.tm_min, tm.tm_sec, (int)tv.tv_usec);
  return;
}
```
user: Demonstrate the C code that generates the assembly output below:

```asm
<b64_decode>:
  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)
  jmp    L60
L8:
  mov    -0x28(%rbp),%rdx
  mov    -0x18(%rbp),%rax
  mov    %rdx,%rsi
  mov    %rax,%rdi
  call   <decode4@plt>
  addq   $0x3,-0x28(%rbp)
  addq   $0x4,-0x18(%rbp)
  subq   $0x4,-0x20(%rbp)
  addq   $0x3,-0x8(%rbp)
L60:
  cmpq   $0x4,-0x20(%rbp)
  ja     L8
  cmpq   $0x4,-0x20(%rbp)
  jne    L91
  mov    -0x18(%rbp),%rax
  add    $0x3,%rax
  movzbl (%rax),%eax
  cmp    $0x3d,%al
  je     L59
  mov    -0x28(%rbp),%rdx
  mov    -0x18(%rbp),%rax
  mov    %rdx,%rsi
  mov    %rax,%rdi
  call   <decode4@plt>
  addq   $0x3,-0x8(%rbp)
  jmp    L78
L59:
  mov    -0x18(%rbp),%rax
  add    $0x2,%rax
  movzbl (%rax),%eax
  cmp    $0x3d,%al
  je     L61
  mov    -0x28(%rbp),%rdx
  mov    -0x18(%rbp),%rax
  mov    %rdx,%rsi
  mov    %rax,%rdi
  call   <decode3@plt>
  addq   $0x2,-0x8(%rbp)
  jmp    L78
L61:
  mov    -0x28(%rbp),%rdx
  mov    -0x18(%rbp),%rax
  mov    %rdx,%rsi
  mov    %rax,%rdi
  call   <decode2@plt>
  addq   $0x1,-0x8(%rbp)
  jmp    L78
L91:
  cmpq   $0x3,-0x20(%rbp)
  jne    L66
  mov    -0x28(%rbp),%rdx
  mov    -0x18(%rbp),%rax
  mov    %rdx,%rsi
  mov    %rax,%rdi
  call   <decode3@plt>
  addq   $0x2,-0x8(%rbp)
  jmp    L78
L66:
  cmpq   $0x2,-0x20(%rbp)
  jne    L78
  mov    -0x28(%rbp),%rdx
  mov    -0x18(%rbp),%rax
  mov    %rdx,%rsi
  mov    %rax,%rdi
  call   <decode2@plt>
  addq   $0x1,-0x8(%rbp)
L78:
  mov    -0x8(%rbp),%rax
  leave
  ret
```

assistant: ```c
size_t b64_decode(uint8_t *src, size_t len, uint8_t *dst) {
  size_t dstLength = 0;
  while (len >= 5) {
    decode4(src, dst);
    dst += 3;
    src += 4;
    len -= 4;
    dstLength += 3;
  }
  if (len == 4) {
    if (src[3] != '=') {
      decode4(src, dst);
      dstLength += 3;
    } else if (src[2] != '=') {
      decode3(src, dst);
      dstLength += 2;
    } else {
      decode2(src, dst);
      dstLength += 1;
    }
  } else if (len == 3) {
    decode3(src, dst);
    dstLength += 2;
  } else if (len == 2) {
    decode2(src, dst);
    dstLength += 1;
  } else {
  }
  return dstLength;
}
```
user: What is the c source code of the assembly code below:

```asm
<b64_decode>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x18,%rsp
  mov    %rdi,%rbx
  mov    %rsi,%r13
  mov    %rdx,0x8(%rsp)
  cmp    $0x4,%rsi
  jbe    L37
  lea    -0x5(%rsi),%r14
  shr    $0x2,%r14
  lea    0x1(%r14),%r15
  lea    (%rdi,%r15,4),%r12
  mov    %rdx,%rbp
L91:
  mov    %rbp,%rsi
  mov    %rbx,%rdi
  call   <decode4@plt>
  add    $0x3,%rbp
  add    $0x4,%rbx
  cmp    %r12,%rbx
  jne    L91
  lea    (%r15,%r15,2),%rax
  mov    %rax,%rbx
  add    %rax,0x8(%rsp)
  neg    %r14
  lea    -0x4(%r13,%r14,4),%r13
L86:
  cmp    $0x4,%r13
  je     L109
  cmp    $0x3,%r13
  je     L75
  cmp    $0x2,%r13
  je     L69
L83:
  mov    %rbx,%rax
  add    $0x18,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L37:
  mov    %rdi,%r12
  mov    $0x0,%ebx
  jmp    L86
L109:
  cmpb   $0x3d,0x3(%r12)
  jne    L56
  cmpb   $0x3d,0x2(%r12)
  je     L90
  mov    0x8(%rsp),%rsi
  mov    %r12,%rdi
  call   <decode3@plt>
  add    $0x2,%rbx
  jmp    L83
L56:
  mov    0x8(%rsp),%rsi
  mov    %r12,%rdi
  call   <decode4@plt>
  add    $0x3,%rbx
  jmp    L83
L90:
  mov    0x8(%rsp),%rsi
  mov    %r12,%rdi
  call   <decode2@plt>
  add    $0x1,%rbx
  jmp    L83
L75:
  mov    0x8(%rsp),%rsi
  mov    %r12,%rdi
  call   <decode3@plt>
  add    $0x2,%rbx
  jmp    L83
L69:
  mov    0x8(%rsp),%rsi
  mov    %r12,%rdi
  call   <decode2@plt>
  add    $0x1,%rbx
  jmp    L83
```

assistant: ```c
size_t b64_decode(uint8_t *src, size_t len, uint8_t *dst) {
  size_t dstLength = 0;
  while (len >= 5) {
    decode4(src, dst);
    dst += 3;
    src += 4;
    len -= 4;
    dstLength += 3;
  }
  if (len == 4) {
    if (src[3] != '=') {
      decode4(src, dst);
      dstLength += 3;
    } else if (src[2] != '=') {
      decode3(src, dst);
      dstLength += 2;
    } else {
      decode2(src, dst);
      dstLength += 1;
    }
  } else if (len == 3) {
    decode3(src, dst);
    dstLength += 2;
  } else if (len == 2) {
    decode2(src, dst);
    dstLength += 1;
  } else {
  }
  return dstLength;
}
```
user: What is the c source code of the assembly code below?

```asm
<b64_decode>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  mov    %rdx,%r13
  push   %r12
  mov    %rsi,%r12
  push   %rbp
  push   %rbx
  mov    %rdi,%rbx
  sub    $0x18,%rsp
  cmp    $0x4,%rsi
  jbe    L72
  lea    -0x5(%rsi),%r14
  shr    $0x2,%r14
  lea    0x1(%r14),%r15
  mov    %r14,0x8(%rsp)
  mov    %rdx,%r14
  lea    (%rdi,%r15,4),%rbp
  nopl   (%rax)
L103:
  mov    %r14,%rsi
  mov    %rbx,%rdi
  add    $0x4,%rbx
  add    $0x3,%r14
  call   <decode4@plt>
  cmp    %rbp,%rbx
  jne    L103
  mov    0x8(%rsp),%r14
  lea    (%r15,%r15,2),%r15
  add    %r15,%r13
  neg    %r14
  lea    -0x4(%r12,%r14,4),%r12
L101:
  cmp    $0x4,%r12
  je     L81
  cmp    $0x3,%r12
  je     L2
  cmp    $0x2,%r12
  je     L25
L4:
  add    $0x18,%rsp
  mov    %r15,%rax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L81:
  cmpb   $0x3d,0x3(%rbp)
  mov    %r13,%rsi
  mov    %rbp,%rdi
  jne    L93
  cmpb   $0x3d,0x2(%rbp)
  je     L42
L97:
  call   <decode3@plt>
  add    $0x2,%r15
  jmp    L4
  nopl   (%rax)
L93:
  call   <decode4@plt>
  add    $0x3,%r15
  jmp    L4
  nopl   0x0(%rax,%rax,1)
L25:
  mov    %r13,%rsi
  mov    %rbp,%rdi
L42:
  call   <decode2@plt>
  add    $0x1,%r15
  jmp    L4
  nopl   0x0(%rax)
L2:
  mov    %r13,%rsi
  mov    %rbp,%rdi
  jmp    L97
L72:
  mov    %rdi,%rbp
  xor    %r15d,%r15d
  jmp    L101
```

assistant: ```c
size_t b64_decode(uint8_t *src, size_t len, uint8_t *dst) {
  size_t dstLength = 0;
  while (len >= 5) {
    decode4(src, dst);
    dst += 3;
    src += 4;
    len -= 4;
    dstLength += 3;
  }
  if (len == 4) {
    if (src[3] != '=') {
      decode4(src, dst);
      dstLength += 3;
    } else if (src[2] != '=') {
      decode3(src, dst);
      dstLength += 2;
    } else {
      decode2(src, dst);
      dstLength += 1;
    }
  } else if (len == 3) {
    decode3(src, dst);
    dstLength += 2;
  } else if (len == 2) {
    decode2(src, dst);
    dstLength += 1;
  } else {
  }
  return dstLength;
}
```
user: What would the C source look like for the assembly code provided here:

```asm
<b64_decode>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  mov    %rdx,%r13
  push   %r12
  mov    %rsi,%r12
  push   %rbp
  push   %rbx
  mov    %rdi,%rbx
  sub    $0x18,%rsp
  cmp    $0x4,%rsi
  jbe    L68
  lea    -0x5(%rsi),%r14
  shr    $0x2,%r14
  lea    0x1(%r14),%r15
  mov    %r14,0x8(%rsp)
  mov    %rdx,%r14
  lea    (%rdi,%r15,4),%rbp
  nopl   (%rax)
L66:
  mov    %r14,%rsi
  mov    %rbx,%rdi
  add    $0x4,%rbx
  add    $0x3,%r14
  call   <decode4@plt>
  cmp    %rbp,%rbx
  jne    L66
  mov    0x8(%rsp),%r14
  lea    (%r15,%r15,2),%r15
  add    %r15,%r13
  neg    %r14
  lea    -0x4(%r12,%r14,4),%r12
L42:
  cmp    $0x4,%r12
  je     L89
  cmp    $0x3,%r12
  je     L49
  cmp    $0x2,%r12
  je     L45
L114:
  add    $0x18,%rsp
  mov    %r15,%rax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L89:
  cmpb   $0x3d,0x3(%rbp)
  mov    %r13,%rsi
  mov    %rbp,%rdi
  jne    L81
  cmpb   $0x3d,0x2(%rbp)
  je     L74
L35:
  call   <decode3@plt>
  add    $0x2,%r15
  jmp    L114
  nopl   (%rax)
L81:
  call   <decode4@plt>
  add    $0x3,%r15
  jmp    L114
  nopl   0x0(%rax,%rax,1)
L45:
  mov    %r13,%rsi
  mov    %rbp,%rdi
L74:
  call   <decode2@plt>
  add    $0x1,%r15
  jmp    L114
  nopl   0x0(%rax)
L49:
  mov    %r13,%rsi
  mov    %rbp,%rdi
  jmp    L35
L68:
  mov    %rdi,%rbp
  xor    %r15d,%r15d
  jmp    L42
```

assistant: ```c
size_t b64_decode(uint8_t *src, size_t len, uint8_t *dst) {
  size_t dstLength = 0;
  while (len >= 5) {
    decode4(src, dst);
    dst += 3;
    src += 4;
    len -= 4;
    dstLength += 3;
  }
  if (len == 4) {
    if (src[3] != '=') {
      decode4(src, dst);
      dstLength += 3;
    } else if (src[2] != '=') {
      decode3(src, dst);
      dstLength += 2;
    } else {
      decode2(src, dst);
      dstLength += 1;
    }
  } else if (len == 3) {
    decode3(src, dst);
    dstLength += 2;
  } else if (len == 2) {
    decode2(src, dst);
    dstLength += 1;
  } else {
  }
  return dstLength;
}
```
user: What is the c source code of the assembly code below?

```asm
<sort>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x20,%rsp
  mov    %rdi,-0x18(%rbp)
  mov    %esi,-0x1c(%rbp)
  cmpl   $0x1,-0x1c(%rbp)
  jle    L3
  mov    -0x1c(%rbp),%eax
  cltq
  shl    $0x2,%eax
  mov    %eax,%edi
  call   <malloc@plt>
  mov    %rax,-0x8(%rbp)
  mov    -0x1c(%rbp),%eax
  lea    -0x1(%rax),%edx
  mov    -0x8(%rbp),%rsi
  mov    -0x18(%rbp),%rax
  mov    %edx,%ecx
  mov    $0x0,%edx
  mov    %rax,%rdi
  call   <msort@plt>
L3:
  nop
  leave
  ret
```

assistant: ```c
void sort(int a[], int len) {
  int *b;
  if (len > 1) {
    b = malloc(sizeof(int) * len);
    msort(a, b, 0, len - 1);
  }
}
```
user: 下面的汇编指令对应的C源代码是什么:

```asm
<sort>:
  endbr64
  cmp    $0x1,%esi
  jg     L3
  ret
L3:
  push   %rbp
  push   %rbx
  sub    $0x8,%rsp
  mov    %rdi,%rbp
  mov    %esi,%ebx
  lea    0x0(,%rsi,4),%edi
  call   <malloc@plt>
  mov    %rax,%rsi
  lea    -0x1(%rbx),%ecx
  mov    $0x0,%edx
  mov    %rbp,%rdi
  call   <msort@plt>
  add    $0x8,%rsp
  pop    %rbx
  pop    %rbp
  ret
```

assistant: ```c
void sort(int a[], int len) {
  int *b;
  if (len > 1) {
    b = malloc(sizeof(int) * len);
    msort(a, b, 0, len - 1);
  }
}
```
user: 请将这段汇编代码片段转换成等效的C代码:

```asm
<sort>:
  endbr64
  cmp    $0x1,%esi
  jg     L5
  ret
  nopw   0x0(%rax,%rax,1)
L5:
  push   %rbp
  mov    %rdi,%rbp
  lea    0x0(,%rsi,4),%edi
  push   %rbx
  mov    %esi,%ebx
  sub    $0x8,%rsp
  call   <malloc@plt>
  add    $0x8,%rsp
  lea    -0x1(%rbx),%ecx
  mov    %rbp,%rdi
  pop    %rbx
  mov    %rax,%rsi
  xor    %edx,%edx
  pop    %rbp
  jmp    1060 <msort@plt>
```

assistant: ```c
void sort(int a[], int len) {
  int *b;
  if (len > 1) {
    b = malloc(sizeof(int) * len);
    msort(a, b, 0, len - 1);
  }
}
```
user: 请将以下的汇编代码转换成C语言代码：

```asm
<sort>:
  endbr64
  cmp    $0x1,%esi
  jg     L6
  ret
  nopw   0x0(%rax,%rax,1)
L6:
  push   %rbp
  mov    %rdi,%rbp
  lea    0x0(,%rsi,4),%edi
  push   %rbx
  mov    %esi,%ebx
  sub    $0x8,%rsp
  call   <malloc@plt>
  add    $0x8,%rsp
  lea    -0x1(%rbx),%ecx
  mov    %rbp,%rdi
  pop    %rbx
  mov    %rax,%rsi
  xor    %edx,%edx
  pop    %rbp
  jmp    1060 <msort@plt>
```

assistant: ```c
void sort(int a[], int len) {
  int *b;
  if (len > 1) {
    b = malloc(sizeof(int) * len);
    msort(a, b, 0, len - 1);
  }
}
```
user: What is the c source code of the assembly code below?

```asm
<get_nextval>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    %rdi,-0x18(%rbp)
  mov    %esi,-0x1c(%rbp)
  mov    %rdx,-0x28(%rbp)
  movl   $0x0,-0x8(%rbp)
  movl   $0xffffffff,-0x4(%rbp)
  mov    -0x8(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x28(%rbp),%rax
  add    %rdx,%rax
  movl   $0xffffffff,(%rax)
  jmp    L55
L59:
  cmpl   $0xffffffff,-0x4(%rbp)
  je     L30
  mov    -0x8(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%edx
  mov    -0x4(%rbp),%eax
  movslq %eax,%rcx
  mov    -0x18(%rbp),%rax
  add    %rcx,%rax
  movzbl (%rax),%eax
  cmp    %al,%dl
  jne    L7
L30:
  addl   $0x1,-0x8(%rbp)
  addl   $0x1,-0x4(%rbp)
  mov    -0x8(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%edx
  mov    -0x4(%rbp),%eax
  movslq %eax,%rcx
  mov    -0x18(%rbp),%rax
  add    %rcx,%rax
  movzbl (%rax),%eax
  cmp    %al,%dl
  je     L45
  mov    -0x8(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x28(%rbp),%rax
  add    %rax,%rdx
  mov    -0x4(%rbp),%eax
  mov    %eax,(%rdx)
  jmp    L55
L45:
  mov    -0x4(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x28(%rbp),%rax
  add    %rdx,%rax
  mov    -0x8(%rbp),%edx
  movslq %edx,%rdx
  lea    0x0(,%rdx,4),%rcx
  mov    -0x28(%rbp),%rdx
  add    %rcx,%rdx
  mov    (%rax),%eax
  mov    %eax,(%rdx)
  jmp    L55
L7:
  mov    -0x4(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x28(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%eax
  mov    %eax,-0x4(%rbp)
L55:
  mov    -0x1c(%rbp),%eax
  sub    $0x1,%eax
  cmp    %eax,-0x8(%rbp)
  jl     L59
  nop
  nop
  pop    %rbp
  ret
```

assistant: ```c
void get_nextval(const char *ptrn, int plen, int *nextval) {
  int i = 0;
  int j = -1;
  nextval[i] = -1;
  while (i < plen - 1) {
    if (-1 == j || ptrn[i] == ptrn[j]) {
      ++i;
      ++j;
      if (ptrn[i] != ptrn[j]) {
        nextval[i] = j;
      } else {
        nextval[i] = nextval[j];
      }
    } else {
      j = nextval[j];
    }
  }
}
```
user: What is the c source code of the assembly code below?

```asm
<get_nextval>:
  endbr64
  movl   $0xffffffff,(%rdx)
  sub    $0x1,%esi
  test   %esi,%esi
  jle    L2
  mov    $0xffffffff,%eax
  mov    $0x0,%ecx
  jmp    L60
L9:
  add    $0x1,%ecx
  add    $0x1,%eax
  movslq %ecx,%r8
  movslq %eax,%r9
  movzbl (%rdi,%r9,1),%r11d
  cmp    %r11b,(%rdi,%r8,1)
  je     L40
  mov    %eax,(%rdx,%r8,4)
L75:
  cmp    %esi,%ecx
  jge    L2
L60:
  cmp    $0xffffffff,%eax
  je     L9
  movslq %eax,%r8
  movslq %ecx,%r9
  movzbl (%rdi,%r8,1),%r10d
  cmp    %r10b,(%rdi,%r9,1)
  je     L9
  mov    (%rdx,%r8,4),%eax
  jmp    L75
L40:
  mov    (%rdx,%r9,4),%r9d
  mov    %r9d,(%rdx,%r8,4)
  jmp    L75
L2:
  ret
```

assistant: ```c
void get_nextval(const char *ptrn, int plen, int *nextval) {
  int i = 0;
  int j = -1;
  nextval[i] = -1;
  while (i < plen - 1) {
    if (-1 == j || ptrn[i] == ptrn[j]) {
      ++i;
      ++j;
      if (ptrn[i] != ptrn[j]) {
        nextval[i] = j;
      } else {
        nextval[i] = nextval[j];
      }
    } else {
      j = nextval[j];
    }
  }
}
```
user: What is the c source code of the assembly code below?

```asm
<get_nextval>:
  endbr64
  sub    $0x1,%esi
  movl   $0xffffffff,(%rdx)
  mov    $0xffffffff,%eax
  xor    %ecx,%ecx
  test   %esi,%esi
  jg     L45
  jmp    L10
  nopw   0x0(%rax,%rax,1)
L41:
  movslq %eax,%r8
  movslq %ecx,%r9
  movzbl (%rdi,%r8,1),%r11d
  cmp    %r11b,(%rdi,%r9,1)
  je     L34
  mov    (%rdx,%r8,4),%eax
L37:
  cmp    %esi,%ecx
  jge    L10
L45:
  cmp    $0xffffffff,%eax
  jne    L41
L34:
  add    $0x1,%ecx
  add    $0x1,%eax
  movslq %ecx,%r8
  movslq %eax,%r9
  movzbl (%rdi,%r9,1),%r11d
  lea    (%rdx,%r8,4),%r10
  cmp    %r11b,(%rdi,%r8,1)
  je     L7
  mov    %eax,(%r10)
  cmp    %esi,%ecx
  jl     L45
L10:
  ret
  nopl   0x0(%rax)
L7:
  mov    (%rdx,%r9,4),%r8d
  mov    %r8d,(%r10)
  jmp    L37
```

assistant: ```c
void get_nextval(const char *ptrn, int plen, int *nextval) {
  int i = 0;
  int j = -1;
  nextval[i] = -1;
  while (i < plen - 1) {
    if (-1 == j || ptrn[i] == ptrn[j]) {
      ++i;
      ++j;
      if (ptrn[i] != ptrn[j]) {
        nextval[i] = j;
      } else {
        nextval[i] = nextval[j];
      }
    } else {
      j = nextval[j];
    }
  }
}
```
user: 下面的汇编指令对应的C源代码是什么：

```asm
<get_nextval>:
  endbr64
  sub    $0x1,%esi
  movl   $0xffffffff,(%rdx)
  mov    $0xffffffff,%eax
  xor    %ecx,%ecx
  test   %esi,%esi
  jg     L62
  jmp    L77
  nopw   0x0(%rax,%rax,1)
L71:
  movslq %eax,%r8
  movslq %ecx,%r9
  movzbl (%rdi,%r8,1),%r11d
  cmp    %r11b,(%rdi,%r9,1)
  je     L60
  mov    (%rdx,%r8,4),%eax
L50:
  cmp    %esi,%ecx
  jge    L77
L62:
  cmp    $0xffffffff,%eax
  jne    L71
L60:
  add    $0x1,%ecx
  add    $0x1,%eax
  movslq %ecx,%r8
  movslq %eax,%r9
  movzbl (%rdi,%r9,1),%r11d
  lea    (%rdx,%r8,4),%r10
  cmp    %r11b,(%rdi,%r8,1)
  je     L23
  mov    %eax,(%r10)
  cmp    %esi,%ecx
  jl     L62
L77:
  ret
  nopl   0x0(%rax)
L23:
  mov    (%rdx,%r9,4),%r8d
  mov    %r8d,(%r10)
  jmp    L50
```

assistant: ```c
void get_nextval(const char *ptrn, int plen, int *nextval) {
  int i = 0;
  int j = -1;
  nextval[i] = -1;
  while (i < plen - 1) {
    if (-1 == j || ptrn[i] == ptrn[j]) {
      ++i;
      ++j;
      if (ptrn[i] != ptrn[j]) {
        nextval[i] = j;
      } else {
        nextval[i] = nextval[j];
      }
    } else {
      j = nextval[j];
    }
  }
}
```
user: 请将这段汇编代码片段转换成等效的C代码：

```asm
<main>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x40,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
  movsd  D29(%rip),%xmm0
  movsd  %xmm0,-0x30(%rbp)
  movsd  D11(%rip),%xmm0
  movsd  %xmm0,-0x28(%rbp)
  movsd  D37(%rip),%xmm0
  movsd  %xmm0,-0x20(%rbp)
  movsd  D35(%rip),%xmm0
  movsd  %xmm0,-0x18(%rbp)
  lea    -0x30(%rbp),%rax
  mov    $0x4,%esi
  mov    %rax,%rdi
  call   <b@plt>
  mov    %rax,-0x38(%rbp)
  mov    -0x38(%rbp),%rax
  mov    %rax,%rdi
  call   <free@plt>
  mov    $0x0,%eax
  mov    -0x8(%rbp),%rdx
  sub    %fs:0x28,%rdx
  je     L6
  call   <__stack_chk_fail@plt>
L6:
  leave
  ret
```

tool_calls: name: unpack_data
arguments: data_label: D29
type: byte[8]
name: unpack_data
arguments: data_label: D11
type: byte[8]
name: unpack_data
arguments: data_label: D37
type: byte[8]
name: unpack_data
arguments: data_label: D35
type: byte[8]

tool: {"D29": [0x00,0x00,0x00,0x00,0x00,0x00,0xf0,0x3f]}

tool: {"D11": [0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x40]}

tool: {"D37": [0x00,0x00,0x00,0x00,0x00,0x00,0x08,0x40]}

tool: {"D35": [0x00,0x00,0x00,0x00,0x00,0x00,0x24,0x40]}

assistant: ```c
main() {
  double v[4] = {1, 2, 3, 10};
  double *sum = b(v, 4);
  free(sum);
}
```