ylfeng/ReF-Decompile-dataset huggingface dataset:
user: 提供的汇编代码用C语言表示会是什么样子:

```asm
<main>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  cmpl   $0x0,-0xc(%rbp)
  je     L21
  mov    -0x8(%rbp),%edx
  mov    -0xc(%rbp),%eax
  add    %edx,%eax
  test   %eax,%eax
  je     L21
  mov    -0xc(%rbp),%eax
  neg    %eax
  mov    %eax,-0x4(%rbp)
  jmp    L23
L21:
  nop
  movl   $0x0,-0x8(%rbp)
L23:
  mov    $0x0,%eax
  pop    %rbp
  ret
```

assistant: ```c
int main() {
  int a;
  int b;
  int c;
  if (a && (b + a)) {
    c = -a;
  } else {
  A:
    b = 0;
  }
  return 0;
}
```
user: Demonstrate the C code that generates the assembly output below:

```asm
<main>:
  endbr64
  mov    $0x0,%eax
  ret
```

assistant: ```c
int main() {
  int a;
  int b;
  int c;
  if (a && (b + a)) {
    c = -a;
  } else {
  A:
    b = 0;
  }
  return 0;
}
```
user: 请从给定的汇编指令推导出C源代码:

```asm
<main>:
  endbr64
  xor    %eax,%eax
  ret
```

assistant: ```c
int main() {
  int a;
  int b;
  int c;
  if (a && (b + a)) {
    c = -a;
  } else {
  A:
    b = 0;
  }
  return 0;
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<main>:
  endbr64
  xor    %eax,%eax
  ret
```

assistant: ```c
int main() {
  int a;
  int b;
  int c;
  if (a && (b + a)) {
    c = -a;
  } else {
  A:
    b = 0;
  }
  return 0;
}
```
user: Translate the below assembly code into C programming language:

```asm
<checked_memcpy>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x30,%rsp
  mov    %rdi,-0x18(%rbp)
  mov    %rsi,-0x20(%rbp)
  mov    %edx,-0x24(%rbp)
  mov    -0x24(%rbp),%edx
  mov    -0x20(%rbp),%rcx
  mov    -0x18(%rbp),%rax
  mov    %rcx,%rsi
  mov    %rax,%rdi
  call   <memcpy@plt>
  mov    %rax,-0x8(%rbp)
  mov    -0x8(%rbp),%rax
  cmp    -0x18(%rbp),%rax
  je     L2
  mov    -0x18(%rbp),%rdx
  mov    -0x8(%rbp),%rax
  mov    %rax,%rsi
  lea    D5(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
  mov    $0x1,%edi
  call   <exit@plt>
L2:
  nop
  leave
  ret
```

tool_calls: name: unpack_data
arguments: data_label: D5
data_type: string

tool: D5: Wrong memcpy return value: %p != %p


assistant: ```c
void checked_memcpy(void *dst, void *src, unsigned n) {
  void *ret = memcpy(dst, src, n);
  if (ret != dst) {
    printf("Wrong memcpy return value: %p != %p\n", ret, dst);
    exit(1);
  }
}
```
user: Translate the below assembly code into C programming language:

```asm
<checked_memcpy>:
  endbr64
  push   %rbx
  mov    %rdi,%rbx
  call   <memcpy@plt>
  cmp    %rax,%rbx
  je     L8
  mov    %rbx,%rdx
  mov    %rax,%rsi
  lea    D6(%rip),%rdi
  call   <printf@plt>
  mov    $0x1,%edi
  call   <exit@plt>
L8:
  pop    %rbx
  ret
```

tool_calls: name: retrieve_data
arguments: data_label: D6
type_guessed: string

tool: D6: Wrong memcpy return value: %p != %p


assistant: ```c
void checked_memcpy(void *dst, void *src, unsigned n) {
  void *ret = memcpy(dst, src, n);
  if (ret != dst) {
    printf("Wrong memcpy return value: %p != %p\n", ret, dst);
    exit(1);
  }
}
```
user: 下面的汇编指令对应的C源代码是什么:

```asm
<checked_memcpy>:
  endbr64
  push   %r12
  mov    %rdi,%r12
  call   <memcpy@plt>
  cmp    %rax,%r12
  je     L7
  mov    %r12,%rdx
  lea    D9(%rip),%rdi
  mov    %rax,%rsi
  call   <printf@plt>
  mov    $0x1,%edi
  pop    %r12
  jmp    1090 <exit@plt>
  nopl   0x0(%rax)
L7:
  pop    %r12
  ret
```

tool_calls: name: retrieve_data
arguments: tag: D9
type_guessed: string

tool: D9: Wrong memcpy return value: %p != %p


assistant: ```c
void checked_memcpy(void *dst, void *src, unsigned n) {
  void *ret = memcpy(dst, src, n);
  if (ret != dst) {
    printf("Wrong memcpy return value: %p != %p\n", ret, dst);
    exit(1);
  }
}
```
user: 请将以下的汇编代码转换成C语言代码：

```asm
<checked_memcpy>:
  endbr64
  push   %r12
  mov    %rdi,%r12
  call   <memcpy@plt>
  cmp    %rax,%r12
  je     L4
  mov    %r12,%rdx
  lea    D9(%rip),%rdi
  mov    %rax,%rsi
  call   <printf@plt>
  mov    $0x1,%edi
  pop    %r12
  jmp    1090 <exit@plt>
  nopl   0x0(%rax)
L4:
  pop    %r12
  ret
```

tool_calls: name: disassemble_data
arguments: data_label: D9
type_guessed: string

tool: D9: Wrong memcpy return value: %p != %p


assistant: ```c
void checked_memcpy(void *dst, void *src, unsigned n) {
  void *ret = memcpy(dst, src, n);
  if (ret != dst) {
    printf("Wrong memcpy return value: %p != %p\n", ret, dst);
    exit(1);
  }
}
```
user: 请从给定的汇编指令推导出C源代码：

```asm
<ft_print_alphabet>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x10,%rsp
  movb   $0x7a,-0x1(%rbp)
  movb   $0x61,-0x2(%rbp)
  jmp    L8
L0:
  movsbl -0x2(%rbp),%eax
  mov    %eax,%edi
  call   <ft_putchar@plt>
  movzbl -0x2(%rbp),%eax
  add    $0x1,%eax
  mov    %al,-0x2(%rbp)
L8:
  movzbl -0x1(%rbp),%eax
  cmp    -0x2(%rbp),%al
  jge    L0
  nop
  nop
  leave
  ret
```

assistant: ```c
void ft_print_alphabet(void) {
  char a;
  char z;
  z = 'z';
  a = 'a';
  while (a < z + 1) {
    ft_putchar(a);
    a++;
  }
}
```
user: 请显示与下面列出的汇编代码相匹配的C语言实现：

```asm
<ft_print_alphabet>:
  endbr64
  push   %rbx
  mov    $0x61,%ebx
L0:
  mov    %ebx,%edi
  call   <ft_putchar@plt>
  add    $0x1,%ebx
  cmp    $0x7b,%ebx
  jne    L0
  pop    %rbx
  ret
```

assistant: ```c
void ft_print_alphabet(void) {
  char a;
  char z;
  z = 'z';
  a = 'a';
  while (a < z + 1) {
    ft_putchar(a);
    a++;
  }
}
```
user: 提供的汇编代码用C语言表示会是什么样子:

```asm
<ft_print_alphabet>:
  endbr64
  push   %rbx
  mov    $0x61,%ebx
  nopw   0x0(%rax,%rax,1)
L7:
  mov    %ebx,%edi
  add    $0x1,%ebx
  call   <ft_putchar@plt>
  cmp    $0x7b,%ebx
  jne    L7
  pop    %rbx
  ret
```

assistant: ```c
void ft_print_alphabet(void) {
  char a;
  char z;
  z = 'z';
  a = 'a';
  while (a < z + 1) {
    ft_putchar(a);
    a++;
  }
}
```
user: 提供的汇编代码用C语言表示会是什么样子：

```asm
<ft_print_alphabet>:
  endbr64
  push   %rbx
  mov    $0x61,%ebx
  nopw   0x0(%rax,%rax,1)
L1:
  mov    %ebx,%edi
  add    $0x1,%ebx
  call   <ft_putchar@plt>
  cmp    $0x7b,%ebx
  jne    L1
  pop    %rbx
  ret
```

assistant: ```c
void ft_print_alphabet(void) {
  char a;
  char z;
  z = 'z';
  a = 'a';
  while (a < z + 1) {
    ft_putchar(a);
    a++;
  }
}
```
user: 下面的汇编指令对应的C源代码是什么:

```asm
<swap>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    %rdi,-0x18(%rbp)
  mov    %rsi,-0x20(%rbp)
  mov    -0x18(%rbp),%rax
  movzbl (%rax),%eax
  mov    %al,-0x1(%rbp)
  mov    -0x20(%rbp),%rax
  movzbl (%rax),%edx
  mov    -0x18(%rbp),%rax
  mov    %dl,(%rax)
  mov    -0x20(%rbp),%rax
  movzbl -0x1(%rbp),%edx
  mov    %dl,(%rax)
  nop
  pop    %rbp
  ret
```

assistant: ```c
swap(char *a, char *b) {
  char c;
  c = *a;
  *a = *b;
  *b = c;
}
```
user: 请将以下的汇编代码转换成C语言代码：

```asm
<swap>:
  endbr64
  movzbl (%rdi),%eax
  movzbl (%rsi),%edx
  mov    %dl,(%rdi)
  mov    %al,(%rsi)
  ret
```

assistant: ```c
swap(char *a, char *b) {
  char c;
  c = *a;
  *a = *b;
  *b = c;
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<swap>:
  endbr64
  movzbl (%rdi),%eax
  movzbl (%rsi),%edx
  mov    %dl,(%rdi)
  mov    %al,(%rsi)
  ret
```

assistant: ```c
swap(char *a, char *b) {
  char c;
  c = *a;
  *a = *b;
  *b = c;
}
```
user: What would the C source look like for the assembly code provided here?

```asm
<swap>:
  endbr64
  movzbl (%rdi),%eax
  movzbl (%rsi),%edx
  mov    %dl,(%rdi)
  mov    %al,(%rsi)
  ret
```

assistant: ```c
swap(char *a, char *b) {
  char c;
  c = *a;
  *a = *b;
  *b = c;
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<knapsack>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    %rdi,-0x18(%rbp)
  mov    %rsi,-0x20(%rbp)
  mov    %edx,-0x24(%rbp)
  mov    %rcx,-0x30(%rbp)
  mov    %r8,-0x38(%rbp)
  mov    %r9d,-0x28(%rbp)
  movl   $0x1,-0x4(%rbp)
  jmp    L4
L38:
  movl   $0x1,-0x8(%rbp)
  jmp    L24
L49:
  mov    -0x4(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%eax
  cmp    %eax,-0x8(%rbp)
  jl     L55
  mov    -0x8(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x30(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%eax
  mov    -0x4(%rbp),%edx
  movslq %edx,%rdx
  lea    0x0(,%rdx,4),%rcx
  mov    -0x18(%rbp),%rdx
  add    %rcx,%rdx
  mov    (%rdx),%ecx
  mov    -0x8(%rbp),%edx
  sub    %ecx,%edx
  movslq %edx,%rdx
  lea    0x0(,%rdx,4),%rcx
  mov    -0x30(%rbp),%rdx
  add    %rcx,%rdx
  mov    (%rdx),%ecx
  mov    -0x4(%rbp),%edx
  movslq %edx,%rdx
  lea    0x0(,%rdx,4),%rsi
  mov    -0x20(%rbp),%rdx
  add    %rsi,%rdx
  mov    (%rdx),%edx
  add    %ecx,%edx
  cmp    %edx,%eax
  jge    L55
  mov    -0x4(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%edx
  mov    -0x8(%rbp),%eax
  sub    %edx,%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x30(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%ecx
  mov    -0x4(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x20(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%edx
  mov    -0x8(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rsi
  mov    -0x30(%rbp),%rax
  add    %rsi,%rax
  add    %ecx,%edx
  mov    %edx,(%rax)
  mov    -0x8(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x38(%rbp),%rax
  add    %rax,%rdx
  mov    -0x4(%rbp),%eax
  mov    %eax,(%rdx)
L55:
  addl   $0x1,-0x8(%rbp)
L24:
  mov    -0x8(%rbp),%eax
  cmp    -0x28(%rbp),%eax
  jle    L49
  addl   $0x1,-0x4(%rbp)
L4:
  mov    -0x4(%rbp),%eax
  cmp    -0x24(%rbp),%eax
  jle    L38
  nop
  nop
  pop    %rbp
  ret
```

assistant: ```c
void knapsack(int size[], int val[], int N, int cost[], int best[], int M) {
  int i, j;
  for (j = 1; j <= N; j++) {
    for (i = 1; i <= M; i++) {
      if (i >= size[j]) {
        if (cost[i] < cost[i - size[j]] + val[j]) {
          cost[i] = cost[i - size[j]] + val[j];
          best[i] = j;
        }
      }
    }
  }
}
```
user: What is the c source code of the assembly code below?

```asm
<knapsack>:
  endbr64
  test   %edx,%edx
  jle    L69
  push   %r12
  push   %rbp
  push   %rbx
  mov    %rdi,%rax
  mov    %rsi,%rbx
  mov    %rcx,%rdi
  mov    %r8,%rbp
  lea    0x4(%rax),%rsi
  lea    0x1(%rdx),%r12d
  mov    $0x1,%r11d
  lea    0x1(%r9),%r10d
  jmp    L28
L14:
  add    $0x1,%rax
  cmp    %r10,%rax
  je     L89
L6:
  mov    (%rsi),%edx
  cmp    %eax,%edx
  jg     L14
  mov    %eax,%ecx
  sub    %edx,%ecx
  movslq %ecx,%rcx
  mov    (%rbx,%r11,4),%edx
  add    (%rdi,%rcx,4),%edx
  cmp    %edx,(%rdi,%rax,4)
  jge    L14
  mov    %edx,(%rdi,%rax,4)
  mov    %r8d,0x0(%rbp,%rax,4)
  jmp    L14
L89:
  add    $0x1,%r11
  add    $0x4,%rsi
  cmp    %r12,%r11
  je     L12
L28:
  mov    %r11d,%r8d
  mov    $0x1,%eax
  test   %r9d,%r9d
  jg     L6
  jmp    L89
L12:
  pop    %rbx
  pop    %rbp
  pop    %r12
  ret
L69:
  ret
```

assistant: ```c
void knapsack(int size[], int val[], int N, int cost[], int best[], int M) {
  int i, j;
  for (j = 1; j <= N; j++) {
    for (i = 1; i <= M; i++) {
      if (i >= size[j]) {
        if (cost[i] < cost[i - size[j]] + val[j]) {
          cost[i] = cost[i - size[j]] + val[j];
          best[i] = j;
        }
      }
    }
  }
}
```
user: 请将以下的汇编代码转换成C语言代码:

```asm
<knapsack>:
  endbr64
  test   %edx,%edx
  jle    L4
  mov    %rdi,%rax
  push   %r12
  mov    %rcx,%rdi
  lea    0x1(%rdx),%r12d
  push   %rbp
  mov    $0x1,%r11d
  mov    %r8,%rbp
  lea    0x1(%r9),%r10d
  push   %rbx
  mov    %rsi,%rbx
  lea    0x4(%rax),%rsi
  nopw   0x0(%rax,%rax,1)
L24:
  mov    %r11d,%r8d
  mov    $0x1,%eax
  test   %r9d,%r9d
  jle    L51
  nopl   (%rax)
L40:
  mov    (%rsi),%edx
  cmp    %eax,%edx
  jg     L22
  mov    %eax,%ecx
  sub    %edx,%ecx
  mov    (%rbx,%r11,4),%edx
  movslq %ecx,%rcx
  add    (%rdi,%rcx,4),%edx
  cmp    %edx,(%rdi,%rax,4)
  jge    L22
  mov    %edx,(%rdi,%rax,4)
  mov    %r8d,0x0(%rbp,%rax,4)
L22:
  add    $0x1,%rax
  cmp    %rax,%r10
  jne    L40
L51:
  add    $0x1,%r11
  add    $0x4,%rsi
  cmp    %r12,%r11
  jne    L24
  pop    %rbx
  pop    %rbp
  pop    %r12
  ret
L4:
  ret
```

assistant: ```c
void knapsack(int size[], int val[], int N, int cost[], int best[], int M) {
  int i, j;
  for (j = 1; j <= N; j++) {
    for (i = 1; i <= M; i++) {
      if (i >= size[j]) {
        if (cost[i] < cost[i - size[j]] + val[j]) {
          cost[i] = cost[i - size[j]] + val[j];
          best[i] = j;
        }
      }
    }
  }
}
```
user: 这段汇编代码用C语言表示是什么样的？

```asm
<knapsack>:
  endbr64
  test   %edx,%edx
  jle    L58
  test   %r9d,%r9d
  jle    L58
  push   %rbp
  mov    %rsi,%r11
  add    $0x4,%rdi
  mov    %rcx,%rsi
  push   %rbx
  lea    0x1(%rdx),%ebp
  mov    %r8,%rbx
  mov    $0x1,%r10d
  add    $0x1,%r9d
  nopl   0x0(%rax)
L15:
  mov    %r10d,%r8d
  mov    $0x1,%eax
  nopl   0x0(%rax,%rax,1)
L59:
  mov    (%rdi),%edx
  cmp    %eax,%edx
  jg     L41
  mov    %eax,%ecx
  sub    %edx,%ecx
  mov    (%r11,%r10,4),%edx
  movslq %ecx,%rcx
  add    (%rsi,%rcx,4),%edx
  cmp    %edx,(%rsi,%rax,4)
  jge    L41
  mov    %edx,(%rsi,%rax,4)
  mov    %r8d,(%rbx,%rax,4)
L41:
  add    $0x1,%rax
  cmp    %r9,%rax
  jne    L59
  add    $0x1,%r10
  add    $0x4,%rdi
  cmp    %rbp,%r10
  jne    L15
  pop    %rbx
  pop    %rbp
  ret
L58:
  ret
```

assistant: ```c
void knapsack(int size[], int val[], int N, int cost[], int best[], int M) {
  int i, j;
  for (j = 1; j <= N; j++) {
    for (i = 1; i <= M; i++) {
      if (i >= size[j]) {
        if (cost[i] < cost[i - size[j]] + val[j]) {
          cost[i] = cost[i - size[j]] + val[j];
          best[i] = j;
        }
      }
    }
  }
}
```
user: Demonstrate the C code that generates the assembly output below:

```asm
<derive_pvk_key>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x30,%rsp
  mov    %rdi,-0x18(%rbp)
  mov    %rsi,-0x20(%rbp)
  mov    %edx,-0x24(%rbp)
  mov    %rcx,-0x30(%rbp)
  mov    %r8d,-0x28(%rbp)
  mov    $0x0,%eax
  call   <EVP_MD_CTX_new@plt>
  mov    %rax,-0x8(%rbp)
  movl   $0x1,-0xc(%rbp)
  cmpq   $0x0,-0x8(%rbp)
  je     L38
  mov    $0x0,%eax
  call   <EVP_sha1@plt>
  mov    %eax,%ecx
  mov    -0x8(%rbp),%rax
  mov    $0x0,%edx
  mov    %ecx,%esi
  mov    %rax,%rdi
  call   <EVP_DigestInit_ex@plt>
  test   %eax,%eax
  je     L38
  mov    -0x24(%rbp),%edx
  mov    -0x20(%rbp),%rcx
  mov    -0x8(%rbp),%rax
  mov    %rcx,%rsi
  mov    %rax,%rdi
  call   <EVP_DigestUpdate@plt>
  test   %eax,%eax
  je     L38
  mov    -0x28(%rbp),%edx
  mov    -0x30(%rbp),%rcx
  mov    -0x8(%rbp),%rax
  mov    %rcx,%rsi
  mov    %rax,%rdi
  call   <EVP_DigestUpdate@plt>
  test   %eax,%eax
  je     L38
  mov    -0x18(%rbp),%rcx
  mov    -0x8(%rbp),%rax
  mov    $0x0,%edx
  mov    %rcx,%rsi
  mov    %rax,%rdi
  call   <EVP_DigestFinal_ex@plt>
  test   %eax,%eax
  jne    L5
L38:
  movl   $0x0,-0xc(%rbp)
L5:
  mov    -0x8(%rbp),%rax
  mov    %rax,%rdi
  call   <EVP_MD_CTX_free@plt>
  mov    -0xc(%rbp),%eax
  leave
  ret
```

assistant: ```c
int derive_pvk_key(unsigned char *key, const unsigned char *salt, unsigned int saltlen, const unsigned char *pass, int passlen) {
  EVP_MD_CTX *mctx = EVP_MD_CTX_new();
  int rv = 1;
  if (mctx == NULL || !EVP_DigestInit_ex(mctx, EVP_sha1(), NULL) || !EVP_DigestUpdate(mctx, salt, saltlen) || !EVP_DigestUpdate(mctx, pass, passlen) || !EVP_DigestFinal_ex(mctx, key, NULL))
    rv = 0;
  EVP_MD_CTX_free(mctx);
  return rv;
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<derive_pvk_key>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x18,%rsp
  mov    %rdi,0x8(%rsp)
  mov    %rsi,%r12
  mov    %edx,%r13d
  mov    %rcx,%r14
  mov    %r8d,%r15d
  mov    $0x0,%eax
  call   <EVP_MD_CTX_new@plt>
  mov    %rax,%rbx
  mov    $0x0,%ebp
  test   %rax,%rax
  je     L13
  mov    $0x0,%eax
  call   <EVP_sha1@plt>
  mov    %eax,%esi
  mov    $0x0,%edx
  mov    %rbx,%rdi
  call   <EVP_DigestInit_ex@plt>
  mov    %eax,%ebp
  test   %eax,%eax
  jne    L7
L13:
  mov    %rbx,%rdi
  call   <EVP_MD_CTX_free@plt>
  mov    %ebp,%eax
  add    $0x18,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L7:
  mov    %r13d,%edx
  mov    %r12,%rsi
  mov    %rbx,%rdi
  call   <EVP_DigestUpdate@plt>
  mov    %eax,%ebp
  test   %eax,%eax
  je     L13
  mov    %r15d,%edx
  mov    %r14,%rsi
  mov    %rbx,%rdi
  call   <EVP_DigestUpdate@plt>
  mov    %eax,%ebp
  test   %eax,%eax
  je     L13
  mov    $0x0,%edx
  mov    0x8(%rsp),%rsi
  mov    %rbx,%rdi
  call   <EVP_DigestFinal_ex@plt>
  test   %eax,%eax
  setne  %bpl
  movzbl %bpl,%ebp
  jmp    L13
```

assistant: ```c
int derive_pvk_key(unsigned char *key, const unsigned char *salt, unsigned int saltlen, const unsigned char *pass, int passlen) {
  EVP_MD_CTX *mctx = EVP_MD_CTX_new();
  int rv = 1;
  if (mctx == NULL || !EVP_DigestInit_ex(mctx, EVP_sha1(), NULL) || !EVP_DigestUpdate(mctx, salt, saltlen) || !EVP_DigestUpdate(mctx, pass, passlen) || !EVP_DigestFinal_ex(mctx, key, NULL))
    rv = 0;
  EVP_MD_CTX_free(mctx);
  return rv;
}
```
user: 下面的汇编指令对应的C源代码是什么:

```asm
<derive_pvk_key>:
  endbr64
  push   %r15
  xor    %eax,%eax
  mov    %r8d,%r15d
  push   %r14
  mov    %rcx,%r14
  push   %r13
  mov    %edx,%r13d
  push   %r12
  mov    %rsi,%r12
  push   %rbp
  push   %rbx
  mov    %rdi,%rbx
  sub    $0x8,%rsp
  call   <EVP_MD_CTX_new@plt>
  mov    %rax,%rbp
  test   %rax,%rax
  je     L37
  xor    %eax,%eax
  call   <EVP_sha1@plt>
  xor    %edx,%edx
  mov    %rbp,%rdi
  mov    %eax,%esi
  call   <EVP_DigestInit_ex@plt>
  test   %eax,%eax
  jne    L46
L37:
  xor    %r12d,%r12d
L14:
  mov    %rbp,%rdi
  call   <EVP_MD_CTX_free@plt>
  add    $0x8,%rsp
  mov    %r12d,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
  nopl   0x0(%rax)
L46:
  mov    %r13d,%edx
  mov    %r12,%rsi
  mov    %rbp,%rdi
  call   <EVP_DigestUpdate@plt>
  test   %eax,%eax
  je     L37
  mov    %r15d,%edx
  mov    %r14,%rsi
  mov    %rbp,%rdi
  call   <EVP_DigestUpdate@plt>
  test   %eax,%eax
  je     L37
  xor    %edx,%edx
  mov    %rbx,%rsi
  mov    %rbp,%rdi
  xor    %r12d,%r12d
  call   <EVP_DigestFinal_ex@plt>
  test   %eax,%eax
  setne  %r12b
  jmp    L14
```

assistant: ```c
int derive_pvk_key(unsigned char *key, const unsigned char *salt, unsigned int saltlen, const unsigned char *pass, int passlen) {
  EVP_MD_CTX *mctx = EVP_MD_CTX_new();
  int rv = 1;
  if (mctx == NULL || !EVP_DigestInit_ex(mctx, EVP_sha1(), NULL) || !EVP_DigestUpdate(mctx, salt, saltlen) || !EVP_DigestUpdate(mctx, pass, passlen) || !EVP_DigestFinal_ex(mctx, key, NULL))
    rv = 0;
  EVP_MD_CTX_free(mctx);
  return rv;
}
```
user: 请显示与下面列出的汇编代码相匹配的C语言实现:

```asm
<derive_pvk_key>:
  endbr64
  push   %r15
  xor    %eax,%eax
  mov    %r8d,%r15d
  push   %r14
  mov    %rcx,%r14
  push   %r13
  mov    %edx,%r13d
  push   %r12
  mov    %rsi,%r12
  push   %rbp
  push   %rbx
  mov    %rdi,%rbx
  sub    $0x8,%rsp
  call   <EVP_MD_CTX_new@plt>
  mov    %rax,%rbp
  test   %rax,%rax
  je     L25
  xor    %eax,%eax
  call   <EVP_sha1@plt>
  xor    %edx,%edx
  mov    %rbp,%rdi
  mov    %eax,%esi
  call   <EVP_DigestInit_ex@plt>
  test   %eax,%eax
  jne    L39
L25:
  xor    %r12d,%r12d
L42:
  mov    %rbp,%rdi
  call   <EVP_MD_CTX_free@plt>
  add    $0x8,%rsp
  mov    %r12d,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
  nopl   0x0(%rax)
L39:
  mov    %r13d,%edx
  mov    %r12,%rsi
  mov    %rbp,%rdi
  call   <EVP_DigestUpdate@plt>
  test   %eax,%eax
  je     L25
  mov    %r15d,%edx
  mov    %r14,%rsi
  mov    %rbp,%rdi
  call   <EVP_DigestUpdate@plt>
  test   %eax,%eax
  je     L25
  xor    %edx,%edx
  mov    %rbx,%rsi
  mov    %rbp,%rdi
  xor    %r12d,%r12d
  call   <EVP_DigestFinal_ex@plt>
  test   %eax,%eax
  setne  %r12b
  jmp    L42
```

assistant: ```c
int derive_pvk_key(unsigned char *key, const unsigned char *salt, unsigned int saltlen, const unsigned char *pass, int passlen) {
  EVP_MD_CTX *mctx = EVP_MD_CTX_new();
  int rv = 1;
  if (mctx == NULL || !EVP_DigestInit_ex(mctx, EVP_sha1(), NULL) || !EVP_DigestUpdate(mctx, salt, saltlen) || !EVP_DigestUpdate(mctx, pass, passlen) || !EVP_DigestFinal_ex(mctx, key, NULL))
    rv = 0;
  EVP_MD_CTX_free(mctx);
  return rv;
}
```
user: 请将以下的汇编代码转换成C语言代码:

```asm
<vde_chain_nm5_work>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    %rdi,-0x8(%rbp)
  mov    %rsi,-0x10(%rbp)
  mov    %rdx,-0x18(%rbp)
  mov    %rcx,-0x20(%rbp)
  cmpq   $0x0,-0x8(%rbp)
  je     L35
  mov    -0x8(%rbp),%rax
  movl   $0x4,(%rax)
L35:
  cmpq   $0x0,-0x10(%rbp)
  je     L27
  mov    -0x10(%rbp),%rax
  movl   $0x3,(%rax)
L27:
  cmpq   $0x0,-0x18(%rbp)
  je     L11
  mov    -0x18(%rbp),%rax
  movl   $0x0,(%rax)
L11:
  cmpq   $0x0,-0x20(%rbp)
  je     L32
  mov    -0x20(%rbp),%rax
  movl   $0x3a,(%rax)
L32:
  mov    $0x0,%eax
  pop    %rbp
  ret
```

assistant: ```c
int vde_chain_nm5_work(int *sz_arg, int *sz_res, int *sz_iw, int *sz_w) {
  if (sz_arg)
    *sz_arg = 4;
  if (sz_res)
    *sz_res = 3;
  if (sz_iw)
    *sz_iw = 0;
  if (sz_w)
    *sz_w = 58;
  return 0;
}
```
user: 请从给定的汇编指令推导出C源代码：

```asm
<vde_chain_nm5_work>:
  endbr64
  test   %rdi,%rdi
  je     L0
  movl   $0x4,(%rdi)
L0:
  test   %rsi,%rsi
  je     L13
  movl   $0x3,(%rsi)
L13:
  test   %rdx,%rdx
  je     L21
  movl   $0x0,(%rdx)
L21:
  test   %rcx,%rcx
  je     L15
  movl   $0x3a,(%rcx)
L15:
  mov    $0x0,%eax
  ret
```

assistant: ```c
int vde_chain_nm5_work(int *sz_arg, int *sz_res, int *sz_iw, int *sz_w) {
  if (sz_arg)
    *sz_arg = 4;
  if (sz_res)
    *sz_res = 3;
  if (sz_iw)
    *sz_iw = 0;
  if (sz_w)
    *sz_w = 58;
  return 0;
}
```
user: What is the c source code of the assembly code below?

```asm
<vde_chain_nm5_work>:
  endbr64
  test   %rdi,%rdi
  je     L28
  movl   $0x4,(%rdi)
L28:
  test   %rsi,%rsi
  je     L22
  movl   $0x3,(%rsi)
L22:
  test   %rdx,%rdx
  je     L3
  movl   $0x0,(%rdx)
L3:
  test   %rcx,%rcx
  je     L13
  movl   $0x3a,(%rcx)
L13:
  xor    %eax,%eax
  ret
```

assistant: ```c
int vde_chain_nm5_work(int *sz_arg, int *sz_res, int *sz_iw, int *sz_w) {
  if (sz_arg)
    *sz_arg = 4;
  if (sz_res)
    *sz_res = 3;
  if (sz_iw)
    *sz_iw = 0;
  if (sz_w)
    *sz_w = 58;
  return 0;
}
```
user: 提供的汇编代码用C语言表示会是什么样子：

```asm
<vde_chain_nm5_work>:
  endbr64
  test   %rdi,%rdi
  je     L29
  movl   $0x4,(%rdi)
L29:
  test   %rsi,%rsi
  je     L6
  movl   $0x3,(%rsi)
L6:
  test   %rdx,%rdx
  je     L35
  movl   $0x0,(%rdx)
L35:
  test   %rcx,%rcx
  je     L2
  movl   $0x3a,(%rcx)
L2:
  xor    %eax,%eax
  ret
```

assistant: ```c
int vde_chain_nm5_work(int *sz_arg, int *sz_res, int *sz_iw, int *sz_w) {
  if (sz_arg)
    *sz_arg = 4;
  if (sz_res)
    *sz_res = 3;
  if (sz_iw)
    *sz_iw = 0;
  if (sz_w)
    *sz_w = 58;
  return 0;
}
```
user: What would the C source look like for the assembly code provided here?

```asm
<USBIntStatus>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    %rdi,-0x18(%rbp)
  mov    -0x18(%rbp),%rax
  add    $0x2,%rax
  movzwl (%rax),%eax
  movzwl %ax,%eax
  mov    %rax,-0x8(%rbp)
  mov    -0x18(%rbp),%rax
  add    $0x4,%rax
  movzwl (%rax),%eax
  movzwl %ax,%eax
  shl    $0x8,%eax
  cltq
  or     %rax,-0x8(%rbp)
  mov    -0x18(%rbp),%rax
  add    $0xa,%rax
  movzbl (%rax),%eax
  movzbl %al,%eax
  shl    $0x18,%eax
  cltq
  or     %rax,-0x8(%rbp)
  mov    -0x18(%rbp),%rax
  add    $0x40c,%rax
  mov    (%rax),%rax
  and    $0x1,%eax
  test   %rax,%rax
  je     L7
  orq    $0x10000,-0x8(%rbp)
  mov    -0x18(%rbp),%rax
  add    $0x40c,%rax
  movzbl (%rax),%eax
  mov    -0x18(%rbp),%rdx
  add    $0x40c,%rdx
  or     $0x1,%eax
  mov    %al,(%rdx)
L7:
  mov    -0x8(%rbp),%rax
  pop    %rbp
  ret
```

assistant: ```c
unsigned long USBIntStatus(unsigned long ulBase) {
  unsigned long ulStatus;
  ;
  ulStatus = ((*((volatile unsigned short *)(ulBase + 0x00000002))));
  ulStatus |= ((*((volatile unsigned short *)(ulBase + 0x00000004))) << 8);
  ulStatus |= ((*((volatile unsigned char *)(ulBase + 0x0000000A))) << 24);
  if ((*((volatile unsigned long *)(ulBase + 0x0000040C))) & 0x00000001) {
    ulStatus |= 0x00010000;
    (*((volatile unsigned char *)(ulBase + 0x0000040C))) |= 0x00000001;
  }
  return (ulStatus);
}
```