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

```asm
<main>:
  endbr64
  sub    $0x28,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x18(%rsp)
  xor    %eax,%eax
  movl   $0x499602d2,0x8(%rsp)
  movl   $0x4e932c06,0xc(%rsp)
  mov    D1(%rip),%rax
  mov    %rax,0x10(%rsp)
  movw   $0x2d2,0x6(%rsp)
  lea    0x8(%rsp),%rdi
  mov    $0x4,%esi
  mov    $0x0,%eax
  call   <showbyte@plt>
  lea    0xc(%rsp),%rdi
  mov    $0x4,%esi
  mov    $0x0,%eax
  call   <showbyte@plt>
  lea    0x10(%rsp),%rdi
  mov    $0x8,%esi
  mov    $0x0,%eax
  call   <showbyte@plt>
  lea    0x6(%rsp),%rdi
  mov    $0x2,%esi
  mov    $0x0,%eax
  call   <showbyte@plt>
  mov    0x18(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L4
  mov    $0x0,%eax
  add    $0x28,%rsp
  ret
L4:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: extract_symbolic_data
arguments: label: D1
type_infered: f64

tool: D1: 1234567890

assistant: ```c
int main() {
  int n = 1234567890;
  float f = 1234567890;
  double d = 1234567890;
  short s = 1234567890;
  showbyte(&n, sizeof(n));
  showbyte(&f, sizeof(f));
  showbyte(&d, sizeof(d));
  showbyte(&s, sizeof(s));
  return 0;
}
```
user: 这段汇编代码用C语言表示是什么样的?

```asm
<main>:
  endbr64
  sub    $0x28,%rsp
  mov    $0x4,%esi
  mov    %fs:0x28,%rax
  mov    %rax,0x18(%rsp)
  xor    %eax,%eax
  mov    D3(%rip),%rax
  lea    0x8(%rsp),%rdi
  movl   $0x499602d2,0x8(%rsp)
  movl   $0x4e932c06,0xc(%rsp)
  mov    %rax,0x10(%rsp)
  mov    $0x2d2,%eax
  mov    %ax,0x6(%rsp)
  xor    %eax,%eax
  call   <showbyte@plt>
  lea    0xc(%rsp),%rdi
  mov    $0x4,%esi
  xor    %eax,%eax
  call   <showbyte@plt>
  lea    0x10(%rsp),%rdi
  mov    $0x8,%esi
  xor    %eax,%eax
  call   <showbyte@plt>
  xor    %eax,%eax
  lea    0x6(%rsp),%rdi
  mov    $0x2,%esi
  call   <showbyte@plt>
  mov    0x18(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L7
  xor    %eax,%eax
  add    $0x28,%rsp
  ret
L7:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: read_data
arguments: label: D3
type_infered: f64

tool: D3: 1234567890

assistant: ```c
int main() {
  int n = 1234567890;
  float f = 1234567890;
  double d = 1234567890;
  short s = 1234567890;
  showbyte(&n, sizeof(n));
  showbyte(&f, sizeof(f));
  showbyte(&d, sizeof(d));
  showbyte(&s, sizeof(s));
  return 0;
}
```
user: Demonstrate the C code that generates the assembly output below:

```asm
<main>:
  endbr64
  sub    $0x28,%rsp
  mov    $0x4,%esi
  mov    %fs:0x28,%rax
  mov    %rax,0x18(%rsp)
  xor    %eax,%eax
  mov    D6(%rip),%rax
  lea    0x8(%rsp),%rdi
  movl   $0x499602d2,0x8(%rsp)
  movl   $0x4e932c06,0xc(%rsp)
  mov    %rax,0x10(%rsp)
  mov    $0x2d2,%eax
  mov    %ax,0x6(%rsp)
  xor    %eax,%eax
  call   <showbyte@plt>
  lea    0xc(%rsp),%rdi
  mov    $0x4,%esi
  xor    %eax,%eax
  call   <showbyte@plt>
  lea    0x10(%rsp),%rdi
  mov    $0x8,%esi
  xor    %eax,%eax
  call   <showbyte@plt>
  xor    %eax,%eax
  lea    0x6(%rsp),%rdi
  mov    $0x2,%esi
  call   <showbyte@plt>
  mov    0x18(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L3
  xor    %eax,%eax
  add    $0x28,%rsp
  ret
L3:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: disassemble_data
arguments: data_tag: D6
type_guessed: f64

tool: D6: 1234567890

assistant: ```c
int main() {
  int n = 1234567890;
  float f = 1234567890;
  double d = 1234567890;
  short s = 1234567890;
  showbyte(&n, sizeof(n));
  showbyte(&f, sizeof(f));
  showbyte(&d, sizeof(d));
  showbyte(&s, sizeof(s));
  return 0;
}
```
user: What would the C source look like for the assembly code provided here:

```asm
<temperature_to_factor_10x>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    %edi,-0x4(%rbp)
  cmpl   $0xfffffff7,-0x4(%rbp)
  jge    L135
  mov    $0xaa,%eax
  jmp    L96
L135:
  cmpl   $0xfffffffc,-0x4(%rbp)
  jge    L92
  mov    $0x78,%eax
  jmp    L96
L92:
  cmpl   $0x5,-0x4(%rbp)
  jg     L16
  mov    $0x50,%eax
  jmp    L96
L16:
  cmpl   $0xa,-0x4(%rbp)
  jg     L83
  mov    $0x28,%eax
  jmp    L96
L83:
  cmpl   $0xf,-0x4(%rbp)
  jg     L19
  mov    $0x1e,%eax
  jmp    L96
L19:
  cmpl   $0x14,-0x4(%rbp)
  jg     L130
  mov    $0x14,%eax
  jmp    L96
L130:
  cmpl   $0x28,-0x4(%rbp)
  jg     L75
  mov    $0xa,%eax
  jmp    L96
L75:
  mov    $0x7,%eax
L96:
  pop    %rbp
  ret
```

assistant: ```c
int temperature_to_factor_10x(int temperature) {
  if (temperature <= -10) {
    return 170;
  } else if (temperature <= -5) {
    return 120;
  } else if (temperature <= 5) {
    return 80;
  } else if (temperature <= 10) {
    return 40;
  } else if (temperature <= 15) {
    return 30;
  } else if (temperature <= 20) {
    return 20;
  } else if (temperature <= 40) {
    return 10;
  }
  return 7;
}
```
user: 请显示与下面列出的汇编代码相匹配的C语言实现:

```asm
<temperature_to_factor_10x>:
  endbr64
  mov    $0xaa,%eax
  cmp    $0xfffffff7,%edi
  jl     L2
  mov    $0x78,%eax
  cmp    $0xfffffffc,%edi
  jl     L2
  mov    $0x50,%eax
  cmp    $0x5,%edi
  jle    L2
  mov    $0x28,%eax
  cmp    $0xa,%edi
  jle    L2
  mov    $0x1e,%eax
  cmp    $0xf,%edi
  jle    L2
  mov    $0x14,%eax
  cmp    $0x14,%edi
  jle    L2
  cmp    $0x28,%edi
  setle  %al
  movzbl %al,%eax
  lea    0x7(%rax,%rax,2),%eax
L2:
  ret
```

assistant: ```c
int temperature_to_factor_10x(int temperature) {
  if (temperature <= -10) {
    return 170;
  } else if (temperature <= -5) {
    return 120;
  } else if (temperature <= 5) {
    return 80;
  } else if (temperature <= 10) {
    return 40;
  } else if (temperature <= 15) {
    return 30;
  } else if (temperature <= 20) {
    return 20;
  } else if (temperature <= 40) {
    return 10;
  }
  return 7;
}
```
user: Demonstrate the C code that generates the assembly output below:

```asm
<temperature_to_factor_10x>:
  endbr64
  mov    $0xaa,%eax
  cmp    $0xfffffff7,%edi
  jl     L36
  mov    $0x78,%eax
  cmp    $0xfffffffc,%edi
  jl     L36
  mov    $0x50,%eax
  cmp    $0x5,%edi
  jle    L36
  mov    $0x28,%eax
  cmp    $0xa,%edi
  jle    L36
  mov    $0x1e,%eax
  cmp    $0xf,%edi
  jle    L36
  mov    $0x14,%eax
  cmp    $0x14,%edi
  jle    L36
  xor    %eax,%eax
  cmp    $0x28,%edi
  setle  %al
  lea    0x7(%rax,%rax,2),%eax
L36:
  ret
```

assistant: ```c
int temperature_to_factor_10x(int temperature) {
  if (temperature <= -10) {
    return 170;
  } else if (temperature <= -5) {
    return 120;
  } else if (temperature <= 5) {
    return 80;
  } else if (temperature <= 10) {
    return 40;
  } else if (temperature <= 15) {
    return 30;
  } else if (temperature <= 20) {
    return 20;
  } else if (temperature <= 40) {
    return 10;
  }
  return 7;
}
```
user: What is the c source code of the assembly code below?

```asm
<temperature_to_factor_10x>:
  endbr64
  mov    $0xaa,%eax
  cmp    $0xfffffff7,%edi
  jl     L34
  mov    $0x78,%eax
  cmp    $0xfffffffc,%edi
  jl     L34
  mov    $0x50,%eax
  cmp    $0x5,%edi
  jle    L34
  mov    $0x28,%eax
  cmp    $0xa,%edi
  jle    L34
  mov    $0x1e,%eax
  cmp    $0xf,%edi
  jle    L34
  mov    $0x14,%eax
  cmp    $0x14,%edi
  jle    L34
  xor    %eax,%eax
  cmp    $0x28,%edi
  setle  %al
  lea    0x7(%rax,%rax,2),%eax
L34:
  ret
```

assistant: ```c
int temperature_to_factor_10x(int temperature) {
  if (temperature <= -10) {
    return 170;
  } else if (temperature <= -5) {
    return 120;
  } else if (temperature <= 5) {
    return 80;
  } else if (temperature <= 10) {
    return 40;
  } else if (temperature <= 15) {
    return 30;
  } else if (temperature <= 20) {
    return 20;
  } else if (temperature <= 40) {
    return 10;
  }
  return 7;
}
```
user: 下面的汇编指令对应的C源代码是什么:

```asm
<dstrdiff>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x30,%rsp
  mov    %rdi,-0x28(%rbp)
  mov    %rsi,-0x30(%rbp)
  movq   $0x0,-0x18(%rbp)
  movq   $0x0,-0x10(%rbp)
  mov    -0x28(%rbp),%rax
  mov    %rax,%rdi
  call   <strlen@plt>
  mov    %rax,-0x8(%rbp)
  jmp    L26
L19:
  mov    -0x8(%rbp),%rax
  sub    -0x10(%rbp),%rax
  mov    -0x28(%rbp),%rcx
  mov    -0x10(%rbp),%rdx
  add    %rdx,%rcx
  mov    $0x0,%edx
  mov    %rax,%rsi
  mov    %rcx,%rdi
  call   <utf8_decode@plt>
  mov    %eax,-0x1c(%rbp)
  cmpl   $0x0,-0x1c(%rbp)
  jg     L34
  mov    $0xffffffffffffffff,%rax
  jmp    L9
L34:
  mov    -0x1c(%rbp),%eax
  cltq
  add    %rax,-0x10(%rbp)
  addq   $0x1,-0x18(%rbp)
L26:
  mov    -0x28(%rbp),%rdx
  mov    -0x10(%rbp),%rax
  add    %rdx,%rax
  cmp    %rax,-0x30(%rbp)
  ja     L19
  mov    -0x18(%rbp),%rax
L9:
  leave
  ret
```

assistant: ```c
size_t dstrdiff(const char *str, const char *ptr) {
  size_t diff = 0;
  size_t pos = 0;
  size_t len = strlen(str);
  while ((str + pos) < ptr) {
    int un = utf8_decode(str + pos, len - pos, NULL);
    if (un <= 0)
      return -1;
    pos += un;
    diff++;
  }
  return diff;
}
```
user: What would the C source look like for the assembly code provided here:

```asm
<dstrdiff>:
  endbr64
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  mov    %rdi,%r12
  mov    %rsi,%r13
  call   <strlen@plt>
  cmp    %r13,%r12
  jae    L29
  mov    %rax,%r14
  mov    %r12,%rdi
  mov    $0x0,%ebx
  mov    $0x0,%ebp
L30:
  mov    %r14,%rsi
  sub    %rbx,%rsi
  mov    $0x0,%edx
  call   <utf8_decode@plt>
  test   %eax,%eax
  jle    L34
  cltq
  add    %rax,%rbx
  add    $0x1,%rbp
  lea    (%r12,%rbx,1),%rdi
  cmp    %r13,%rdi
  jb     L30
  jmp    L5
L29:
  mov    $0x0,%ebp
  jmp    L5
L34:
  mov    $0xffffffffffffffff,%rbp
L5:
  mov    %rbp,%rax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  ret
```

assistant: ```c
size_t dstrdiff(const char *str, const char *ptr) {
  size_t diff = 0;
  size_t pos = 0;
  size_t len = strlen(str);
  while ((str + pos) < ptr) {
    int un = utf8_decode(str + pos, len - pos, NULL);
    if (un <= 0)
      return -1;
    pos += un;
    diff++;
  }
  return diff;
}
```
user: What is the c source code of the assembly code below:

```asm
<dstrdiff>:
  endbr64
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  mov    %rsi,%rbp
  push   %rbx
  mov    %rdi,%rbx
  call   <strlen@plt>
  cmp    %rbp,%rbx
  jae    L23
  mov    %rax,%r13
  mov    %rbx,%rdi
  xor    %r14d,%r14d
  xor    %r12d,%r12d
  jmp    L0
  nopw   0x0(%rax,%rax,1)
L37:
  cltq
  add    $0x1,%r12
  add    %rax,%r14
  lea    (%rbx,%r14,1),%rdi
  cmp    %rbp,%rdi
  jae    L43
L0:
  mov    %r13,%rsi
  xor    %edx,%edx
  sub    %r14,%rsi
  call   <utf8_decode@plt>
  test   %eax,%eax
  jg     L37
  mov    $0xffffffffffffffff,%r12
L43:
  pop    %rbx
  mov    %r12,%rax
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  ret
L23:
  xor    %r12d,%r12d
  jmp    L43
```

assistant: ```c
size_t dstrdiff(const char *str, const char *ptr) {
  size_t diff = 0;
  size_t pos = 0;
  size_t len = strlen(str);
  while ((str + pos) < ptr) {
    int un = utf8_decode(str + pos, len - pos, NULL);
    if (un <= 0)
      return -1;
    pos += un;
    diff++;
  }
  return diff;
}
```
user: What is the c source code of the assembly code below:

```asm
<dstrdiff>:
  endbr64
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  mov    %rsi,%rbp
  push   %rbx
  mov    %rdi,%rbx
  call   <strlen@plt>
  cmp    %rbp,%rbx
  jae    L28
  mov    %rax,%r13
  mov    %rbx,%rdi
  xor    %r14d,%r14d
  xor    %r12d,%r12d
  jmp    L6
  nopw   0x0(%rax,%rax,1)
L20:
  cltq
  add    $0x1,%r12
  add    %rax,%r14
  lea    (%rbx,%r14,1),%rdi
  cmp    %rbp,%rdi
  jae    L15
L6:
  mov    %r13,%rsi
  xor    %edx,%edx
  sub    %r14,%rsi
  call   <utf8_decode@plt>
  test   %eax,%eax
  jg     L20
  mov    $0xffffffffffffffff,%r12
L15:
  pop    %rbx
  mov    %r12,%rax
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  ret
L28:
  xor    %r12d,%r12d
  jmp    L15
```

assistant: ```c
size_t dstrdiff(const char *str, const char *ptr) {
  size_t diff = 0;
  size_t pos = 0;
  size_t len = strlen(str);
  while ((str + pos) < ptr) {
    int un = utf8_decode(str + pos, len - pos, NULL);
    if (un <= 0)
      return -1;
    pos += un;
    diff++;
  }
  return diff;
}
```
user: 这段汇编代码用C语言表示是什么样的:

```asm
<qsort>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  push   %rbx
  sub    $0x28,%rsp
  mov    %rdi,-0x28(%rbp)
  mov    %esi,-0x2c(%rbp)
  mov    %edx,-0x30(%rbp)
  mov    -0x30(%rbp),%eax
  sub    -0x2c(%rbp),%eax
  cmp    $0x7,%eax
  jle    L48
  mov    $0x0,%edi
  call   <time@plt>
  mov    %eax,%edi
  call   <srand@plt>
  mov    -0x2c(%rbp),%eax
  movslq %eax,%rbx
  mov    $0x0,%eax
  call   <rand@plt>
  mov    -0x30(%rbp),%edx
  sub    -0x2c(%rbp),%edx
  lea    0x1(%rdx),%ecx
  cltd
  idiv   %ecx
  mov    %edx,%eax
  cltq
  add    %rbx,%rax
  lea    0x0(,%rax,4),%rdx
  mov    -0x28(%rbp),%rax
  add    %rax,%rdx
  mov    -0x2c(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rcx
  mov    -0x28(%rbp),%rax
  add    %rcx,%rax
  mov    %rdx,%rsi
  mov    %rax,%rdi
  call   <swap@plt>
  mov    -0x2c(%rbp),%eax
  mov    %eax,-0x18(%rbp)
  mov    -0x30(%rbp),%eax
  add    $0x1,%eax
  mov    %eax,-0x14(%rbp)
L53:
  addl   $0x1,-0x18(%rbp)
  mov    -0x18(%rbp),%eax
  cmp    -0x30(%rbp),%eax
  jg     L29
  mov    -0x18(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x28(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%edx
  mov    -0x2c(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rcx
  mov    -0x28(%rbp),%rax
  add    %rcx,%rax
  mov    (%rax),%eax
  cmp    %eax,%edx
  jl     L53
L29:
  subl   $0x1,-0x14(%rbp)
  mov    -0x14(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x28(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%edx
  mov    -0x2c(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rcx
  mov    -0x28(%rbp),%rax
  add    %rcx,%rax
  mov    (%rax),%eax
  cmp    %eax,%edx
  jg     L29
  mov    -0x18(%rbp),%eax
  cmp    -0x14(%rbp),%eax
  jg     L49
  mov    -0x14(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x28(%rbp),%rax
  add    %rax,%rdx
  mov    -0x18(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rcx
  mov    -0x28(%rbp),%rax
  add    %rcx,%rax
  mov    %rdx,%rsi
  mov    %rax,%rdi
  call   <swap@plt>
  jmp    L53
L49:
  nop
  mov    -0x14(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x28(%rbp),%rax
  add    %rax,%rdx
  mov    -0x2c(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rcx
  mov    -0x28(%rbp),%rax
  add    %rcx,%rax
  mov    %rdx,%rsi
  mov    %rax,%rdi
  call   <swap@plt>
  mov    -0x14(%rbp),%eax
  lea    -0x1(%rax),%edx
  mov    -0x2c(%rbp),%ecx
  mov    -0x28(%rbp),%rax
  mov    %ecx,%esi
  mov    %rax,%rdi
  call   <qsort>
  mov    -0x14(%rbp),%eax
  lea    0x1(%rax),%ecx
  mov    -0x30(%rbp),%edx
  mov    -0x28(%rbp),%rax
  mov    %ecx,%esi
  mov    %rax,%rdi
  call   <qsort>
  jmp    L10
L48:
  nop
L10:
  mov    -0x8(%rbp),%rbx
  leave
  ret
```

assistant: ```c
void qsort(int *x, int l, int u) {
  if (u - l < (1024 >> 7))
    return;
  int i, j;
  srand((unsigned int)time(NULL));
  swap(x + l, x + l + (rand() % (u - l + 1)));
  i = l;
  j = u + 1;
  while (1) {
    do
      i++;
    while (i <= u && x[i] < x[l]);
    do
      j--;
    while (x[j] > x[l]);
    if (i > j)
      break;
    swap(x + i, x + j);
  }
  swap(x + l, x + j);
  qsort(x, l, j - 1);
  qsort(x, j + 1, u);
}
```
user: What is the c source code of the assembly code below:

```asm
<qsort>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x18,%rsp
  mov    %esi,0xc(%rsp)
  mov    %edx,%ebx
  sub    %esi,%ebx
  cmp    $0x7,%ebx
  jg     L48
L4:
  add    $0x18,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L48:
  mov    %rdi,%r13
  mov    %esi,%r12d
  mov    %edx,%r14d
  mov    $0x0,%edi
  call   <time@plt>
  mov    %eax,%edi
  call   <srand@plt>
  movslq %r12d,%rbp
  mov    $0x0,%eax
  call   <rand@plt>
  lea    0x0(%r13,%rbp,4),%r15
  add    $0x1,%ebx
  cltd
  idiv   %ebx
  movslq %edx,%rax
  add    %rbp,%rax
  lea    0x0(%r13,%rax,4),%rsi
  mov    %r15,%rdi
  call   <swap@plt>
  lea    0x1(%r14),%ebx
  add    $0x1,%r12d
  movslq %r12d,%r12
  jmp    L2
L29:
  mov    (%r15),%edx
  movslq %ebx,%rax
  lea    -0x4(%r13,%rax,4),%rax
L52:
  mov    %ebx,%ebp
  sub    $0x1,%ebx
  mov    %rax,%rsi
  sub    $0x4,%rax
  cmp    %edx,0x4(%rax)
  jg     L52
  cmp    %ecx,%ebx
  jl     L28
  lea    0x0(%r13,%r12,4),%rdi
  call   <swap@plt>
L51:
  add    $0x1,%r12
L2:
  mov    %r12d,%ecx
  cmp    %r12d,%r14d
  jl     L29
  mov    (%r15),%eax
  cmp    %eax,0x0(%r13,%r12,4)
  jl     L51
  jmp    L29
L28:
  mov    %r15,%rdi
  call   <swap@plt>
  lea    -0x2(%rbp),%edx
  mov    0xc(%rsp),%esi
  mov    %r13,%rdi
  call   <qsort>
  mov    %r14d,%edx
  mov    %ebp,%esi
  mov    %r13,%rdi
  call   <qsort>
  jmp    L4
```

assistant: ```c
void qsort(int *x, int l, int u) {
  if (u - l < (1024 >> 7))
    return;
  int i, j;
  srand((unsigned int)time(NULL));
  swap(x + l, x + l + (rand() % (u - l + 1)));
  i = l;
  j = u + 1;
  while (1) {
    do
      i++;
    while (i <= u && x[i] < x[l]);
    do
      j--;
    while (x[j] > x[l]);
    if (i > j)
      break;
    swap(x + i, x + j);
  }
  swap(x + l, x + j);
  qsort(x, l, j - 1);
  qsort(x, j + 1, u);
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<qsort>:
  endbr64
  push   %r15
  lea    0x1(%rdx),%eax
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  mov    %edx,%ebx
  sub    %esi,%ebx
  sub    $0x18,%rsp
  mov    %esi,0x8(%rsp)
  mov    %eax,0xc(%rsp)
  cmp    $0x7,%ebx
  jle    L56
  mov    %rdi,%r14
  mov    %edx,%ebp
L48:
  xor    %edi,%edi
  add    $0x1,%ebx
  call   <time@plt>
  mov    %eax,%edi
  call   <srand@plt>
  xor    %eax,%eax
  movslq 0x8(%rsp),%r12
  call   <rand@plt>
  cltd
  mov    %r12,%r15
  lea    (%r14,%r12,4),%r12
  idiv   %ebx
  mov    %r12,%rdi
  movslq %edx,%rax
  add    %r15,%rax
  lea    (%r14,%rax,4),%rsi
  call   <swap@plt>
  lea    0x1(%r15),%ecx
  mov    (%r12),%edx
  mov    0xc(%rsp),%ebx
  movslq %ecx,%r13
  nopw   0x0(%rax,%rax,1)
L24:
  mov    %r13d,%edi
  cmp    %ebp,%r13d
  jg     L31
  cmp    %edx,(%r14,%r13,4)
  jl     L75
L31:
  movslq %ebx,%rax
  lea    -0x4(%r14,%rax,4),%rax
  cs nopw 0x0(%rax,%rax,1)
L5:
  mov    %rax,%rsi
  sub    $0x4,%rax
  mov    %ebx,%r15d
  sub    $0x1,%ebx
  cmp    %edx,0x4(%rax)
  jg     L5
  cmp    %ebx,%edi
  jg     L42
  lea    (%r14,%r13,4),%rdi
  call   <swap@plt>
  mov    (%r12),%edx
L75:
  add    $0x1,%r13
  jmp    L24
  nopl   0x0(%rax)
L42:
  mov    %r12,%rdi
  mov    %ebp,%ebx
  call   <swap@plt>
  mov    0x8(%rsp),%esi
  lea    -0x2(%r15),%edx
  mov    %r14,%rdi
  sub    %r15d,%ebx
  call   <qsort>
  cmp    $0x7,%ebx
  jle    L56
  mov    %r15d,0x8(%rsp)
  jmp    L48
L56:
  add    $0x18,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
```

assistant: ```c
void qsort(int *x, int l, int u) {
  if (u - l < (1024 >> 7))
    return;
  int i, j;
  srand((unsigned int)time(NULL));
  swap(x + l, x + l + (rand() % (u - l + 1)));
  i = l;
  j = u + 1;
  while (1) {
    do
      i++;
    while (i <= u && x[i] < x[l]);
    do
      j--;
    while (x[j] > x[l]);
    if (i > j)
      break;
    swap(x + i, x + j);
  }
  swap(x + l, x + j);
  qsort(x, l, j - 1);
  qsort(x, j + 1, u);
}
```
user: Demonstrate the C code that generates the assembly output below:

```asm
<qsort>:
  endbr64
  push   %r15
  lea    0x1(%rdx),%eax
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  mov    %edx,%ebx
  sub    %esi,%ebx
  sub    $0x18,%rsp
  mov    %esi,0x8(%rsp)
  mov    %eax,0xc(%rsp)
  cmp    $0x7,%ebx
  jle    L65
  mov    %rdi,%r14
  mov    %edx,%ebp
L17:
  xor    %edi,%edi
  add    $0x1,%ebx
  call   <time@plt>
  mov    %eax,%edi
  call   <srand@plt>
  xor    %eax,%eax
  movslq 0x8(%rsp),%r12
  call   <rand@plt>
  cltd
  mov    %r12,%r15
  lea    (%r14,%r12,4),%r12
  idiv   %ebx
  mov    %r12,%rdi
  movslq %edx,%rax
  add    %r15,%rax
  lea    (%r14,%rax,4),%rsi
  call   <swap@plt>
  lea    0x1(%r15),%ecx
  mov    (%r12),%edx
  mov    0xc(%rsp),%ebx
  movslq %ecx,%r13
  nopw   0x0(%rax,%rax,1)
L26:
  mov    %r13d,%edi
  cmp    %r13d,%ebp
  jl     L75
  cmp    %edx,(%r14,%r13,4)
  jl     L11
L75:
  movslq %ebx,%rax
  lea    -0x4(%r14,%rax,4),%rax
  cs nopw 0x0(%rax,%rax,1)
L2:
  mov    %rax,%rsi
  sub    $0x4,%rax
  mov    %ebx,%r15d
  sub    $0x1,%ebx
  cmp    %edx,0x4(%rax)
  jg     L2
  cmp    %edi,%ebx
  jl     L35
  lea    (%r14,%r13,4),%rdi
  call   <swap@plt>
  mov    (%r12),%edx
L11:
  add    $0x1,%r13
  jmp    L26
  nopl   0x0(%rax)
L35:
  mov    %r12,%rdi
  mov    %ebp,%ebx
  call   <swap@plt>
  mov    0x8(%rsp),%esi
  lea    -0x2(%r15),%edx
  mov    %r14,%rdi
  sub    %r15d,%ebx
  call   <qsort>
  cmp    $0x7,%ebx
  jle    L65
  mov    %r15d,0x8(%rsp)
  jmp    L17
L65:
  add    $0x18,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
```

assistant: ```c
void qsort(int *x, int l, int u) {
  if (u - l < (1024 >> 7))
    return;
  int i, j;
  srand((unsigned int)time(NULL));
  swap(x + l, x + l + (rand() % (u - l + 1)));
  i = l;
  j = u + 1;
  while (1) {
    do
      i++;
    while (i <= u && x[i] < x[l]);
    do
      j--;
    while (x[j] > x[l]);
    if (i > j)
      break;
    swap(x + i, x + j);
  }
  swap(x + l, x + j);
  qsort(x, l, j - 1);
  qsort(x, j + 1, u);
}
```
user: 请将这段汇编代码片段转换成等效的C代码：

```asm
<mystrrchr>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0xc0,%rsp
  mov    %rdi,-0xa8(%rbp)
  mov    %rsi,-0xb0(%rbp)
  mov    %edx,%eax
  mov    %al,-0xb4(%rbp)
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
  movq   $0x0,-0x90(%rbp)
  movq   $0x0,-0x88(%rbp)
  movq   $0x0,-0x80(%rbp)
  movq   $0x0,-0x78(%rbp)
  movq   $0x0,-0x70(%rbp)
  movq   $0x0,-0x68(%rbp)
  movq   $0x0,-0x60(%rbp)
  movq   $0x0,-0x58(%rbp)
  movq   $0x0,-0x50(%rbp)
  movq   $0x0,-0x48(%rbp)
  movq   $0x0,-0x40(%rbp)
  movq   $0x0,-0x38(%rbp)
  movq   $0x0,-0x30(%rbp)
  movq   $0x0,-0x28(%rbp)
  movq   $0x0,-0x20(%rbp)
  movq   $0x0,-0x18(%rbp)
  mov    -0xa8(%rbp),%rdx
  lea    -0x90(%rbp),%rax
  mov    %rdx,%rsi
  mov    %rax,%rdi
  call   <strcpy@plt>
  mov    -0xb0(%rbp),%rax
  sub    -0xa8(%rbp),%rax
  mov    %rax,%rdx
  lea    -0x90(%rbp),%rax
  add    %rdx,%rax
  movb   $0x0,(%rax)
  movsbl -0xb4(%rbp),%edx
  lea    -0x90(%rbp),%rax
  mov    %edx,%esi
  mov    %rax,%rdi
  call   <strrchr@plt>
  mov    %rax,-0x98(%rbp)
  cmpq   $0x0,-0x98(%rbp)
  jne    L4
  mov    $0x0,%eax
  jmp    L17
L4:
  lea    -0x90(%rbp),%rdx
  mov    -0x98(%rbp),%rax
  sub    %rdx,%rax
  mov    %rax,%rdx
  mov    -0xa8(%rbp),%rax
  add    %rdx,%rax
L17:
  mov    -0x8(%rbp),%rdx
  sub    %fs:0x28,%rdx
  je     L26
  call   <__stack_chk_fail@plt>
L26:
  leave
  ret
```

assistant: ```c
char *mystrrchr(char *pBegin, char *loc, char chr) {
  char tmpStr[128] = {0};
  strcpy(tmpStr, pBegin);
  *(tmpStr + (loc - pBegin)) = 0;
  char *pChr = strrchr(tmpStr, chr);
  if (!pChr)
    return NULL;
  return pBegin + (pChr - tmpStr);
}
```
user: 请从给定的汇编指令推导出C源代码:

```asm
<mystrrchr>:
  endbr64
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x98,%rsp
  mov    %rdi,%rbp
  mov    %rsi,%r12
  mov    %edx,%ebx
  mov    %fs:0x28,%rax
  mov    %rax,0x88(%rsp)
  xor    %eax,%eax
  movq   $0x0,(%rsp)
  movq   $0x0,0x8(%rsp)
  movq   $0x0,0x10(%rsp)
  movq   $0x0,0x18(%rsp)
  movq   $0x0,0x20(%rsp)
  movq   $0x0,0x28(%rsp)
  movq   $0x0,0x30(%rsp)
  movq   $0x0,0x38(%rsp)
  movq   $0x0,0x40(%rsp)
  movq   $0x0,0x48(%rsp)
  movq   $0x0,0x50(%rsp)
  movq   $0x0,0x58(%rsp)
  movq   $0x0,0x60(%rsp)
  movq   $0x0,0x68(%rsp)
  movq   $0x0,0x70(%rsp)
  movq   $0x0,0x78(%rsp)
  mov    %rsp,%r13
  mov    %rdi,%rsi
  mov    %r13,%rdi
  call   <strcpy@plt>
  sub    %rbp,%r12
  movb   $0x0,(%rsp,%r12,1)
  movsbl %bl,%esi
  mov    %r13,%rdi
  call   <strrchr@plt>
  test   %rax,%rax
  je     L9
  lea    0x90(%rsp),%rcx
  sub    %rcx,%rax
  lea    0x90(%rax,%rbp,1),%rax
L9:
  mov    0x88(%rsp),%rdx
  sub    %fs:0x28,%rdx
  jne    L5
  add    $0x98,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
L5:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
char *mystrrchr(char *pBegin, char *loc, char chr) {
  char tmpStr[128] = {0};
  strcpy(tmpStr, pBegin);
  *(tmpStr + (loc - pBegin)) = 0;
  char *pChr = strrchr(tmpStr, chr);
  if (!pChr)
    return NULL;
  return pBegin + (pChr - tmpStr);
}
```