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

```asm
<order>:
  endbr64
  mov    %edi,%r9d
  mov    %edi,%r10d
  lea    -0x1(%rdi),%r11d
  mov    %rsi,%rdx
  shr    $0x1f,%r9d
  add    %edi,%r9d
  sar    %r9d
  cmp    $0x1,%edi
  jle    L12
L5:
  cmp    %r9d,%r10d
  jle    L42
  mov    %r9d,%esi
  mov    %r11d,%r8d
  movslq %r9d,%rax
  xor    %edi,%edi
  neg    %esi
  sub    %r9d,%r8d
  lea    (%rdx,%rax,8),%rcx
  movslq %esi,%rsi
  nopl   0x0(%rax)
L29:
  mov    %rdi,%rax
  jmp    L37
  nopl   (%rax)
L40:
  movsd  %xmm0,(%rdx,%rax,8)
  movsd  %xmm1,(%rcx,%rax,8)
  add    %rsi,%rax
  test   %eax,%eax
  js     L41
L37:
  movsd  (%rdx,%rax,8),%xmm1
  movsd  (%rcx,%rax,8),%xmm0
  comisd %xmm0,%xmm1
  ja     L40
L41:
  lea    0x1(%rdi),%rax
  cmp    %rdi,%r8
  je     L42
  mov    %rax,%rdi
  jmp    L29
  nopw   0x0(%rax,%rax,1)
L42:
  sar    %r9d
  jne    L5
  ret
L12:
  ret
```

assistant: ```c
void order(int n, double pbuf[]) {
  int gap, i, j;
  double temp;
  for (gap = n / 2; gap > 0; gap /= 2)
    for (i = gap; i < n; i++)
      for (j = i - gap; j >= 0 && pbuf[j] > pbuf[j + gap]; j -= gap) {
        temp = pbuf[j];
        pbuf[j] = pbuf[j + gap];
        pbuf[j + gap] = temp;
      }
  return;
}
```
user: 请显示与下面列出的汇编代码相匹配的C语言实现：

```asm
<pocsag_code>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  push   %rbx
  sub    $0x48,%rsp
  mov    %rdi,-0x48(%rbp)
  mov    -0x48(%rbp),%rax
  shl    $0xa,%rax
  mov    %rax,-0x18(%rbp)
  mov    -0x18(%rbp),%rax
  mov    %rax,-0x30(%rbp)
  movq   $0x40000000,-0x28(%rbp)
  movq   $0x76900000,-0x20(%rbp)
  movl   $0x15,-0x34(%rbp)
  jmp    L20
L16:
  mov    -0x30(%rbp),%rax
  and    -0x28(%rbp),%rax
  test   %rax,%rax
  je     L24
  mov    -0x20(%rbp),%rax
  xor    %rax,-0x30(%rbp)
L24:
  shrq   -0x28(%rbp)
  shrq   -0x20(%rbp)
  subl   $0x1,-0x34(%rbp)
L20:
  cmpl   $0x0,-0x34(%rbp)
  jg     L16
  mov    -0x30(%rbp),%rax
  xor    %rax,-0x18(%rbp)
  mov    -0x18(%rbp),%rax
  lea    (%rax,%rax,1),%rbx
  mov    -0x18(%rbp),%rax
  mov    %rax,%rdi
  call   <even_parity@plt>
  or     %rbx,%rax
  mov    %rax,-0x18(%rbp)
  mov    -0x18(%rbp),%rcx
  mov    -0x30(%rbp),%rdx
  mov    -0x48(%rbp),%rax
  mov    %rcx,%r8
  mov    %rdx,%rcx
  mov    %rax,%rdx
  lea    D6(%rip),%rax
  mov    %rax,%rsi
  mov    $0x9,%edi
  call   <verbprintf@plt>
  mov    -0x18(%rbp),%rax
  mov    -0x8(%rbp),%rbx
  leave
  ret
```

tool_calls: name: retrieve_data
arguments: data_tag: D6
data_type: string

tool: D6: BCH coder: data: %08lx shreg: %08lx ret: %08lx


assistant: ```c
unsigned long pocsag_code(unsigned long data) {
  unsigned long ret = data << (31 - 21), shreg = ret;
  unsigned long mask = 1L << (31 - 1), coeff = 03551 << (21 - 1);
  int n = 21;
  for (; n > 0; mask >>= 1, coeff >>= 1, n--)
    if (shreg & mask)
      shreg ^= coeff;
  ret ^= shreg;
  ret = (ret << 1) | even_parity(ret);
  verbprintf(9, "BCH coder: data: %08lx shreg: %08lx ret: %08lx\n", data, shreg, ret);
  return ret;
}
```
user: 请显示与下面列出的汇编代码相匹配的C语言实现：

```asm
<pocsag_code>:
  endbr64
  push   %r12
  push   %rbp
  push   %rbx
  mov    %rdi,%rbp
  shl    $0xa,%rdi
  mov    %rdi,%rbx
  mov    $0x15,%ecx
  mov    $0x76900000,%edx
  mov    $0x40000000,%eax
L1:
  mov    %rbx,%rsi
  xor    %rdx,%rsi
  test   %rax,%rbx
  cmovne %rsi,%rbx
  shr    %rax
  shr    %rdx
  sub    $0x1,%ecx
  jne    L1
  xor    %rbx,%rdi
  lea    (%rdi,%rdi,1),%r12
  call   <even_parity@plt>
  or     %rax,%r12
  mov    %r12,%r8
  mov    %rbx,%rcx
  mov    %rbp,%rdx
  lea    D2(%rip),%rsi
  mov    $0x9,%edi
  call   <verbprintf@plt>
  mov    %r12,%rax
  pop    %rbx
  pop    %rbp
  pop    %r12
  ret
```

tool_calls: name: parse_data
arguments: data_label: D2
type: string

tool: D2: BCH coder: data: %08lx shreg: %08lx ret: %08lx


assistant: ```c
unsigned long pocsag_code(unsigned long data) {
  unsigned long ret = data << (31 - 21), shreg = ret;
  unsigned long mask = 1L << (31 - 1), coeff = 03551 << (21 - 1);
  int n = 21;
  for (; n > 0; mask >>= 1, coeff >>= 1, n--)
    if (shreg & mask)
      shreg ^= coeff;
  ret ^= shreg;
  ret = (ret << 1) | even_parity(ret);
  verbprintf(9, "BCH coder: data: %08lx shreg: %08lx ret: %08lx\n", data, shreg, ret);
  return ret;
}
```
user: Demonstrate the C code that generates the assembly output below:

```asm
<pocsag_code>:
  endbr64
  push   %r14
  mov    %rdi,%r14
  shl    $0xa,%rdi
  mov    $0x15,%esi
  push   %r13
  mov    $0x76900000,%ecx
  mov    $0x40000000,%eax
  push   %r12
  mov    %rdi,%r12
  nopl   0x0(%rax,%rax,1)
L4:
  mov    %r12,%r8
  xor    %rcx,%r8
  test   %rax,%r12
  cmovne %r8,%r12
  shr    %rax
  shr    %rcx
  sub    $0x1,%esi
  jne    L4
  xor    %r12,%rdi
  lea    (%rdi,%rdi,1),%r13
  call   <even_parity@plt>
  mov    %r12,%rcx
  mov    %r14,%rdx
  mov    $0x9,%edi
  or     %rax,%r13
  lea    D1(%rip),%rsi
  mov    %r13,%r8
  call   <verbprintf@plt>
  mov    %r13,%rax
  pop    %r12
  pop    %r13
  pop    %r14
  ret
```

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

tool: D1: BCH coder: data: %08lx shreg: %08lx ret: %08lx


assistant: ```c
unsigned long pocsag_code(unsigned long data) {
  unsigned long ret = data << (31 - 21), shreg = ret;
  unsigned long mask = 1L << (31 - 1), coeff = 03551 << (21 - 1);
  int n = 21;
  for (; n > 0; mask >>= 1, coeff >>= 1, n--)
    if (shreg & mask)
      shreg ^= coeff;
  ret ^= shreg;
  ret = (ret << 1) | even_parity(ret);
  verbprintf(9, "BCH coder: data: %08lx shreg: %08lx ret: %08lx\n", data, shreg, ret);
  return ret;
}
```
user: 下面的汇编指令对应的C源代码是什么:

```asm
<pocsag_code>:
  endbr64
  push   %r14
  mov    %rdi,%r14
  shl    $0xa,%rdi
  mov    $0x15,%esi
  push   %r13
  mov    $0x76900000,%ecx
  mov    $0x40000000,%eax
  push   %r12
  mov    %rdi,%r12
  nopl   0x0(%rax,%rax,1)
L3:
  mov    %r12,%r8
  xor    %rcx,%r8
  test   %r12,%rax
  cmovne %r8,%r12
  shr    %rax
  shr    %rcx
  sub    $0x1,%esi
  jne    L3
  xor    %r12,%rdi
  lea    (%rdi,%rdi,1),%r13
  call   <even_parity@plt>
  mov    %r12,%rcx
  mov    %r14,%rdx
  mov    $0x9,%edi
  or     %rax,%r13
  lea    D0(%rip),%rsi
  mov    %r13,%r8
  call   <verbprintf@plt>
  mov    %r13,%rax
  pop    %r12
  pop    %r13
  pop    %r14
  ret
```

tool_calls: name: unpack_data
arguments: label: D0
type_guessed: string

tool: D0: BCH coder: data: %08lx shreg: %08lx ret: %08lx


assistant: ```c
unsigned long pocsag_code(unsigned long data) {
  unsigned long ret = data << (31 - 21), shreg = ret;
  unsigned long mask = 1L << (31 - 1), coeff = 03551 << (21 - 1);
  int n = 21;
  for (; n > 0; mask >>= 1, coeff >>= 1, n--)
    if (shreg & mask)
      shreg ^= coeff;
  ret ^= shreg;
  ret = (ret << 1) | even_parity(ret);
  verbprintf(9, "BCH coder: data: %08lx shreg: %08lx ret: %08lx\n", data, shreg, ret);
  return ret;
}
```
user: 请将以下的汇编代码转换成C语言代码:

```asm
<ckAsmGetCr0>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    %cr0,%rax
  mov    %rax,-0x8(%rbp)
  mov    -0x8(%rbp),%rax
  pop    %rbp
  ret
```

assistant: ```c
uint32_t ckAsmGetCr0(void) {
  uint32_t ret;
  __asm__ __volatile__("mov %%cr0, %0" : "=r"(ret));
  return ret;
}
```
user: 请将这段汇编代码片段转换成等效的C代码：

```asm
<ckAsmGetCr0>:
  endbr64
  mov    %cr0,%rax
  ret
```

assistant: ```c
uint32_t ckAsmGetCr0(void) {
  uint32_t ret;
  __asm__ __volatile__("mov %%cr0, %0" : "=r"(ret));
  return ret;
}
```
user: 下面的汇编指令对应的C源代码是什么:

```asm
<ckAsmGetCr0>:
  endbr64
  mov    %cr0,%rax
  ret
```

assistant: ```c
uint32_t ckAsmGetCr0(void) {
  uint32_t ret;
  __asm__ __volatile__("mov %%cr0, %0" : "=r"(ret));
  return ret;
}
```
user: Translate the below assembly code into C programming language:

```asm
<ckAsmGetCr0>:
  endbr64
  mov    %cr0,%rax
  ret
```

assistant: ```c
uint32_t ckAsmGetCr0(void) {
  uint32_t ret;
  __asm__ __volatile__("mov %%cr0, %0" : "=r"(ret));
  return ret;
}
```
user: 提供的汇编代码用C语言表示会是什么样子：

```asm
<past>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    %rdi,-0x8(%rbp)
  mov    %rsi,-0x10(%rbp)
  mov    %rdx,-0x18(%rbp)
  mov    -0x8(%rbp),%rax
  mov    0x8(%rax),%rdx
  mov    -0x10(%rbp),%rax
  mov    0x8(%rax),%rax
  sub    %rax,%rdx
  mov    -0x18(%rbp),%rax
  mov    %rdx,0x8(%rax)
  mov    -0x8(%rbp),%rax
  mov    (%rax),%edx
  mov    -0x10(%rbp),%rax
  mov    (%rax),%eax
  cmp    %eax,%edx
  jle    L3
  mov    -0x8(%rbp),%rax
  mov    (%rax),%edx
  mov    -0x10(%rbp),%rax
  mov    (%rax),%eax
  sub    %eax,%edx
  mov    -0x18(%rbp),%rax
  mov    %edx,(%rax)
  jmp    L1
L3:
  mov    -0x10(%rbp),%rax
  mov    (%rax),%eax
  mov    $0x3b9aca00,%edx
  sub    %eax,%edx
  mov    -0x8(%rbp),%rax
  mov    (%rax),%eax
  add    %eax,%edx
  mov    -0x18(%rbp),%rax
  mov    %edx,(%rax)
  mov    -0x18(%rbp),%rax
  mov    0x8(%rax),%rax
  lea    -0x1(%rax),%rdx
  mov    -0x18(%rbp),%rax
  mov    %rdx,0x8(%rax)
L1:
  nop
  pop    %rbp
  ret
```

assistant: ```c
void past(struct timespec *a, struct timespec *b, struct timespec *c) {
  c->tv_sec = a->tv_sec - b->tv_sec;
  if (a->tv_nsec > b->tv_nsec)
    c->tv_nsec = a->tv_nsec - b->tv_nsec;
  else {
    c->tv_nsec = 1000000000 - b->tv_nsec + a->tv_nsec;
    --c->tv_sec;
  }
}
```
user: 提供的汇编代码用C语言表示会是什么样子：

```asm
<past>:
  endbr64
  mov    0x8(%rdi),%rax
  sub    0x8(%rsi),%rax
  mov    %rax,0x8(%rdx)
  mov    (%rdi),%ecx
  mov    (%rsi),%esi
  cmp    %esi,%ecx
  jle    L4
  sub    %esi,%ecx
  mov    %ecx,(%rdx)
  ret
L4:
  sub    %esi,%ecx
  lea    0x3b9aca00(%rcx),%ecx
  mov    %ecx,(%rdx)
  sub    $0x1,%rax
  mov    %rax,0x8(%rdx)
  ret
```

assistant: ```c
void past(struct timespec *a, struct timespec *b, struct timespec *c) {
  c->tv_sec = a->tv_sec - b->tv_sec;
  if (a->tv_nsec > b->tv_nsec)
    c->tv_nsec = a->tv_nsec - b->tv_nsec;
  else {
    c->tv_nsec = 1000000000 - b->tv_nsec + a->tv_nsec;
    --c->tv_sec;
  }
}
```
user: 这段汇编代码用C语言表示是什么样的？

```asm
<past>:
  endbr64
  mov    0x8(%rdi),%rax
  mov    (%rdi),%ecx
  sub    0x8(%rsi),%rax
  mov    (%rsi),%esi
  mov    %rax,0x8(%rdx)
  cmp    %esi,%ecx
  jle    L3
  sub    %esi,%ecx
  mov    %ecx,(%rdx)
  ret
  nopl   (%rax)
L3:
  sub    %esi,%ecx
  sub    $0x1,%rax
  add    $0x3b9aca00,%ecx
  mov    %rax,0x8(%rdx)
  mov    %ecx,(%rdx)
  ret
```

assistant: ```c
void past(struct timespec *a, struct timespec *b, struct timespec *c) {
  c->tv_sec = a->tv_sec - b->tv_sec;
  if (a->tv_nsec > b->tv_nsec)
    c->tv_nsec = a->tv_nsec - b->tv_nsec;
  else {
    c->tv_nsec = 1000000000 - b->tv_nsec + a->tv_nsec;
    --c->tv_sec;
  }
}
```
user: 请从给定的汇编指令推导出C源代码：

```asm
<past>:
  endbr64
  mov    0x8(%rdi),%rcx
  mov    (%rdi),%eax
  sub    0x8(%rsi),%rcx
  mov    (%rsi),%esi
  mov    %rcx,0x8(%rdx)
  cmp    %esi,%eax
  jle    L1
  sub    %esi,%eax
  mov    %eax,(%rdx)
  ret
  nopl   (%rax)
L1:
  sub    %esi,%eax
  sub    $0x1,%rcx
  add    $0x3b9aca00,%eax
  mov    %rcx,0x8(%rdx)
  mov    %eax,(%rdx)
  ret
```

assistant: ```c
void past(struct timespec *a, struct timespec *b, struct timespec *c) {
  c->tv_sec = a->tv_sec - b->tv_sec;
  if (a->tv_nsec > b->tv_nsec)
    c->tv_nsec = a->tv_nsec - b->tv_nsec;
  else {
    c->tv_nsec = 1000000000 - b->tv_nsec + a->tv_nsec;
    --c->tv_sec;
  }
}
```
user: Please show me the C implementation that matches the assembly code listed below:

```asm
<selectionsort>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    %rdi,-0x18(%rbp)
  mov    %esi,-0x1c(%rbp)
  movl   $0x0,-0x10(%rbp)
  jmp    L49
L10:
  mov    -0x10(%rbp),%eax
  mov    %eax,-0x8(%rbp)
  mov    -0x10(%rbp),%eax
  add    $0x1,%eax
  mov    %eax,-0xc(%rbp)
  jmp    L11
L27:
  mov    -0xc(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%edx
  mov    -0x8(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rcx
  mov    -0x18(%rbp),%rax
  add    %rcx,%rax
  mov    (%rax),%eax
  cmp    %eax,%edx
  jge    L23
  mov    -0xc(%rbp),%eax
  mov    %eax,-0x8(%rbp)
L23:
  addl   $0x1,-0xc(%rbp)
L11:
  mov    -0xc(%rbp),%eax
  cmp    -0x1c(%rbp),%eax
  jl     L27
  mov    -0x10(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%eax
  mov    %eax,-0x4(%rbp)
  mov    -0x8(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  mov    -0x10(%rbp),%edx
  movslq %edx,%rdx
  lea    0x0(,%rdx,4),%rcx
  mov    -0x18(%rbp),%rdx
  add    %rcx,%rdx
  mov    (%rax),%eax
  mov    %eax,(%rdx)
  mov    -0x8(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x18(%rbp),%rax
  add    %rax,%rdx
  mov    -0x4(%rbp),%eax
  mov    %eax,(%rdx)
  addl   $0x1,-0x10(%rbp)
L49:
  mov    -0x1c(%rbp),%eax
  sub    $0x1,%eax
  cmp    %eax,-0x10(%rbp)
  jl     L10
  nop
  pop    %rbp
  ret
```

assistant: ```c
selectionsort(int arr[], int n) {
  int i, j, min_idx, temp;
  for (i = 0; i < n - 1; i++) {
    min_idx = i;
    for (j = i + 1; j < n; j++) {
      if (arr[j] < arr[min_idx]) {
        min_idx = j;
      }
    }
    temp = arr[i];
    arr[i] = arr[min_idx];
    arr[min_idx] = temp;
  }
}
```
user: 提供的汇编代码用C语言表示会是什么样子：

```asm
<selectionsort>:
  endbr64
  cmp    $0x1,%esi
  jle    L1
  lea    -0x2(%rsi),%r9d
  add    $0x2,%r9
  mov    $0x1,%r8d
L2:
  lea    -0x1(%r8),%edx
  cmp    %r8d,%esi
  jle    L22
  mov    %r8,%rax
L4:
  movslq %edx,%rcx
  mov    (%rdi,%rcx,4),%ecx
  cmp    %ecx,(%rdi,%rax,4)
  cmovl  %eax,%edx
  add    $0x1,%rax
  cmp    %eax,%esi
  jg     L4
L22:
  mov    -0x4(%rdi,%r8,4),%ecx
  movslq %edx,%rdx
  lea    (%rdi,%rdx,4),%rax
  mov    (%rax),%edx
  mov    %edx,-0x4(%rdi,%r8,4)
  mov    %ecx,(%rax)
  add    $0x1,%r8
  cmp    %r9,%r8
  jne    L2
L1:
  ret
```

assistant: ```c
selectionsort(int arr[], int n) {
  int i, j, min_idx, temp;
  for (i = 0; i < n - 1; i++) {
    min_idx = i;
    for (j = i + 1; j < n; j++) {
      if (arr[j] < arr[min_idx]) {
        min_idx = j;
      }
    }
    temp = arr[i];
    arr[i] = arr[min_idx];
    arr[min_idx] = temp;
  }
}
```
user: Please show me the C implementation that matches the assembly code listed below:

```asm
<selectionsort>:
  endbr64
  push   %r13
  lea    -0x1(%rsi),%r13d
  push   %r12
  push   %rbp
  push   %rbx
  test   %r13d,%r13d
  jle    L71
  mov    %rdi,%r11
  mov    %rdi,%rbx
  xor    %r10d,%r10d
  nopl   0x0(%rax)
L70:
  mov    %r10d,%r9d
  add    $0x1,%r10d
  mov    (%rbx),%ebp
  cmp    %r10d,%esi
  jle    L43
  lea    0x4(%rbx),%r12
  mov    %ebp,%edi
  mov    %r10d,%edx
  mov    %r12,%rax
  jmp    L84
  nopl   0x0(%rax)
L36:
  movslq %r9d,%rcx
  add    $0x1,%edx
  add    $0x4,%rax
  lea    (%r11,%rcx,4),%r8
  cmp    %edx,%esi
  je     L19
L84:
  mov    (%rax),%ecx
  mov    %rax,%r8
  cmp    %edi,%ecx
  jge    L36
  mov    %edx,%r9d
  add    $0x1,%edx
  mov    %ecx,%edi
  add    $0x4,%rax
  cmp    %edx,%esi
  jne    L84
L19:
  mov    %edi,(%rbx)
  mov    %r12,%rbx
  mov    %ebp,(%r8)
  cmp    %r13d,%r10d
  jne    L70
L71:
  pop    %rbx
  xor    %eax,%eax
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
  nopl   0x0(%rax)
L43:
  mov    %rbx,%r8
  mov    %ebp,%edi
  lea    0x4(%rbx),%r12
  mov    %edi,(%rbx)
  mov    %r12,%rbx
  mov    %ebp,(%r8)
  cmp    %r13d,%r10d
  jne    L70
  jmp    L71
```

assistant: ```c
selectionsort(int arr[], int n) {
  int i, j, min_idx, temp;
  for (i = 0; i < n - 1; i++) {
    min_idx = i;
    for (j = i + 1; j < n; j++) {
      if (arr[j] < arr[min_idx]) {
        min_idx = j;
      }
    }
    temp = arr[i];
    arr[i] = arr[min_idx];
    arr[min_idx] = temp;
  }
}
```
user: 请将这段汇编代码片段转换成等效的C代码：

```asm
<selectionsort>:
  endbr64
  push   %r13
  lea    -0x1(%rsi),%r13d
  push   %r12
  push   %rbp
  push   %rbx
  test   %r13d,%r13d
  jle    L28
  mov    %rdi,%r11
  mov    %rdi,%rbx
  xor    %r10d,%r10d
  nopl   0x0(%rax)
L75:
  mov    %r10d,%r9d
  add    $0x1,%r10d
  mov    (%rbx),%ebp
  cmp    %r10d,%esi
  jle    L50
  lea    0x4(%rbx),%r12
  mov    %ebp,%edi
  mov    %r10d,%edx
  mov    %r12,%rax
  jmp    L54
  nopl   0x0(%rax)
L35:
  movslq %r9d,%rcx
  add    $0x1,%edx
  add    $0x4,%rax
  lea    (%r11,%rcx,4),%r8
  cmp    %esi,%edx
  je     L39
L54:
  mov    (%rax),%ecx
  mov    %rax,%r8
  cmp    %edi,%ecx
  jge    L35
  mov    %edx,%r9d
  add    $0x1,%edx
  mov    %ecx,%edi
  add    $0x4,%rax
  cmp    %esi,%edx
  jne    L54
L39:
  mov    %edi,(%rbx)
  mov    %r12,%rbx
  mov    %ebp,(%r8)
  cmp    %r13d,%r10d
  jne    L75
L28:
  pop    %rbx
  xor    %eax,%eax
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
  nopl   0x0(%rax)
L50:
  mov    %rbx,%r8
  mov    %ebp,%edi
  lea    0x4(%rbx),%r12
  mov    %edi,(%rbx)
  mov    %r12,%rbx
  mov    %ebp,(%r8)
  cmp    %r13d,%r10d
  jne    L75
  jmp    L28
```

assistant: ```c
selectionsort(int arr[], int n) {
  int i, j, min_idx, temp;
  for (i = 0; i < n - 1; i++) {
    min_idx = i;
    for (j = i + 1; j < n; j++) {
      if (arr[j] < arr[min_idx]) {
        min_idx = j;
      }
    }
    temp = arr[i];
    arr[i] = arr[min_idx];
    arr[min_idx] = temp;
  }
}
```
user: 请将以下的汇编代码转换成C语言代码:

```asm
<hash_fn_string>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x30,%rsp
  mov    %rdi,-0x28(%rbp)
  mov    -0x28(%rbp),%rax
  mov    %rax,-0x8(%rbp)
  movl   $0x0,-0x18(%rbp)
  mov    -0x8(%rbp),%rax
  mov    %rax,%rdi
  call   <strlen@plt>
  mov    %eax,-0x14(%rbp)
  mov    -0x8(%rbp),%rax
  mov    %rax,-0x10(%rbp)
  jmp    L6
L0:
  mov    -0x18(%rbp),%edx
  mov    %edx,%eax
  shl    $0x5,%eax
  sub    %edx,%eax
  mov    %eax,%ecx
  mov    -0x10(%rbp),%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  add    %ecx,%eax
  mov    %eax,-0x18(%rbp)
  addq   $0x1,-0x10(%rbp)
L6:
  mov    -0x14(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x8(%rbp),%rax
  add    %rdx,%rax
  cmp    %rax,-0x10(%rbp)
  jb     L0
  mov    -0x18(%rbp),%eax
  leave
  ret
```

assistant: ```c
int hash_fn_string(void *input) {
  char *input_str = input;
  int hash = 0;
  int input_len = strlen(input_str);
  for (char *ptr = input_str; ptr < (input_str + input_len); ptr++) {
    hash = 31 * hash + *ptr;
  }
  return hash;
}
```
user: Demonstrate the C code that generates the assembly output below:

```asm
<hash_fn_string>:
  endbr64
  push   %rbx
  mov    %rdi,%rbx
  call   <strlen@plt>
  movslq %eax,%rcx
  add    %rbx,%rcx
  cmp    %rcx,%rbx
  jae    L11
  mov    $0x0,%eax
L2:
  mov    %eax,%edx
  shl    $0x5,%edx
  sub    %eax,%edx
  movsbl (%rbx),%eax
  add    %edx,%eax
  add    $0x1,%rbx
  cmp    %rcx,%rbx
  jne    L2
L29:
  pop    %rbx
  ret
L11:
  mov    $0x0,%eax
  jmp    L29
```

assistant: ```c
int hash_fn_string(void *input) {
  char *input_str = input;
  int hash = 0;
  int input_len = strlen(input_str);
  for (char *ptr = input_str; ptr < (input_str + input_len); ptr++) {
    hash = 31 * hash + *ptr;
  }
  return hash;
}
```
user: What is the c source code of the assembly code below:

```asm
<hash_fn_string>:
  endbr64
  push   %rbx
  mov    %rdi,%rbx
  call   <strlen@plt>
  movslq %eax,%rcx
  xor    %eax,%eax
  add    %rbx,%rcx
  cmp    %rcx,%rbx
  jae    L4
  nopw   0x0(%rax,%rax,1)
L5:
  mov    %eax,%edx
  add    $0x1,%rbx
  shl    $0x5,%edx
  sub    %eax,%edx
  movsbl -0x1(%rbx),%eax
  add    %edx,%eax
  cmp    %rcx,%rbx
  jne    L5
L4:
  pop    %rbx
  ret
```

assistant: ```c
int hash_fn_string(void *input) {
  char *input_str = input;
  int hash = 0;
  int input_len = strlen(input_str);
  for (char *ptr = input_str; ptr < (input_str + input_len); ptr++) {
    hash = 31 * hash + *ptr;
  }
  return hash;
}
```
user: What is the c source code of the assembly code below?

```asm
<hash_fn_string>:
  endbr64
  push   %rbx
  mov    %rdi,%rbx
  call   <strlen@plt>
  movslq %eax,%rcx
  xor    %eax,%eax
  add    %rbx,%rcx
  cmp    %rcx,%rbx
  jae    L1
  nopw   0x0(%rax,%rax,1)
L6:
  mov    %eax,%edx
  add    $0x1,%rbx
  shl    $0x5,%edx
  sub    %eax,%edx
  movsbl -0x1(%rbx),%eax
  add    %edx,%eax
  cmp    %rcx,%rbx
  jne    L6
L1:
  pop    %rbx
  ret
```

assistant: ```c
int hash_fn_string(void *input) {
  char *input_str = input;
  int hash = 0;
  int input_len = strlen(input_str);
  for (char *ptr = input_str; ptr < (input_str + input_len); ptr++) {
    hash = 31 * hash + *ptr;
  }
  return hash;
}
```
user: What is the c source code of the assembly code below:

```asm
<lowercase>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x30,%rsp
  mov    %rdi,-0x28(%rbp)
  mov    -0x28(%rbp),%rax
  mov    %rax,%rdi
  call   <strlen@plt>
  mov    %rax,-0x10(%rbp)
  mov    -0x10(%rbp),%rax
  add    $0x1,%rax
  mov    %rax,%rdi
  call   <malloc@plt>
  mov    %rax,-0x8(%rbp)
  movq   $0x0,-0x18(%rbp)
  jmp    L5
L12:
  mov    -0x28(%rbp),%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  mov    %eax,%edi
  call   <tolower@plt>
  mov    %rax,%rdx
  mov    -0x8(%rbp),%rcx
  mov    -0x18(%rbp),%rax
  add    %rcx,%rax
  mov    %dl,(%rax)
  addq   $0x1,-0x18(%rbp)
L5:
  mov    -0x18(%rbp),%rax
  cmp    -0x10(%rbp),%rax
  jb     L12
  mov    -0x8(%rbp),%rdx
  mov    -0x10(%rbp),%rax
  add    %rdx,%rax
  movb   $0x0,(%rax)
  mov    -0x8(%rbp),%rax
  leave
  ret
```

assistant: ```c
char *lowercase(char *source) {
  size_t len = strlen(source);
  char *dest = malloc((len + 1) * sizeof(char));
  for (size_t i = 0; i < len; i++) {
    dest[i] = (char)tolower(source[i]);
  }
  dest[len] = '\0';
  return dest;
}
```
user: What is the c source code of the assembly code below:

```asm
<lowercase>:
  endbr64
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x8,%rsp
  mov    %rdi,%r13
  call   <strlen@plt>
  mov    %rax,%rbp
  lea    0x1(%rax),%rdi
  call   <malloc@plt>
  mov    %rax,%r12
  test   %rbp,%rbp
  je     L12
  mov    $0x0,%ebx
L15:
  movsbl 0x0(%r13,%rbx,1),%edi
  call   <tolower@plt>
  mov    %al,(%r12,%rbx,1)
  add    $0x1,%rbx
  cmp    %rbx,%rbp
  jne    L15
L12:
  movb   $0x0,(%r12,%rbp,1)
  mov    %r12,%rax
  add    $0x8,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
```

assistant: ```c
char *lowercase(char *source) {
  size_t len = strlen(source);
  char *dest = malloc((len + 1) * sizeof(char));
  for (size_t i = 0; i < len; i++) {
    dest[i] = (char)tolower(source[i]);
  }
  dest[len] = '\0';
  return dest;
}
```
user: What would the C source look like for the assembly code provided here?

```asm
<lowercase>:
  endbr64
  push   %r13
  mov    %rdi,%r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x8,%rsp
  call   <strlen@plt>
  lea    0x1(%rax),%rdi
  mov    %rax,%rbp
  call   <malloc@plt>
  mov    %rax,%r12
  test   %rbp,%rbp
  je     L8
  xor    %ebx,%ebx
  nopl   0x0(%rax)
L17:
  movsbl 0x0(%r13,%rbx,1),%edi
  call   <tolower@plt>
  mov    %al,(%r12,%rbx,1)
  add    $0x1,%rbx
  cmp    %rbx,%rbp
  jne    L17
L8:
  movb   $0x0,(%r12,%rbp,1)
  add    $0x8,%rsp
  mov    %r12,%rax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
```

assistant: ```c
char *lowercase(char *source) {
  size_t len = strlen(source);
  char *dest = malloc((len + 1) * sizeof(char));
  for (size_t i = 0; i < len; i++) {
    dest[i] = (char)tolower(source[i]);
  }
  dest[len] = '\0';
  return dest;
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<lowercase>:
  endbr64
  push   %r13
  mov    %rdi,%r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x8,%rsp
  call   <strlen@plt>
  lea    0x1(%rax),%rdi
  mov    %rax,%rbp
  call   <malloc@plt>
  mov    %rax,%r12
  test   %rbp,%rbp
  je     L6
  xor    %ebx,%ebx
  nopl   0x0(%rax)
L12:
  movsbl 0x0(%r13,%rbx,1),%edi
  call   <tolower@plt>
  mov    %al,(%r12,%rbx,1)
  add    $0x1,%rbx
  cmp    %rbx,%rbp
  jne    L12
L6:
  movb   $0x0,(%r12,%rbp,1)
  add    $0x8,%rsp
  mov    %r12,%rax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
```

assistant: ```c
char *lowercase(char *source) {
  size_t len = strlen(source);
  char *dest = malloc((len + 1) * sizeof(char));
  for (size_t i = 0; i < len; i++) {
    dest[i] = (char)tolower(source[i]);
  }
  dest[len] = '\0';
  return dest;
}
```
user: 请从给定的汇编指令推导出C源代码:

```asm
<max2>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    %edi,-0x4(%rbp)
  mov    %esi,-0x8(%rbp)
  mov    -0x4(%rbp),%eax
  cmp    -0x8(%rbp),%eax
  jl     L10
  mov    -0x4(%rbp),%eax
  jmp    L1
L10:
  mov    -0x8(%rbp),%eax
L1:
  pop    %rbp
  ret
```

assistant: ```c
int max2(int a, int b) {
  if (a >= b)
    return a;
  else
    return b;
}
```
user: 这段汇编代码用C语言表示是什么样的？

```asm
<max2>:
  endbr64
  cmp    %esi,%edi
  mov    %esi,%eax
  cmovge %edi,%eax
  ret
```

assistant: ```c
int max2(int a, int b) {
  if (a >= b)
    return a;
  else
    return b;
}
```