ylfeng/ReF-Decompile-dataset huggingface dataset:
user: What would the C source look like for the assembly code provided here?

```asm
<picolCommand9Kill>:
  endbr64
  push   %r12
  push   %rbp
  mov    %rsi,%rbp
  push   %rbx
  mov    %edi,%ebx
  mov    0x8(%rsi),%rdi
  call   <atoi@plt>
  mov    $0xe4,%esi
  mov    %eax,%r12d
  cmp    $0x2,%ebx
  jg     L2
L13:
  mov    %r12d,%edi
  call   <Os9Send@plt>
  pop    %rbx
  mov    %rbp,%rsi
  pop    %rbp
  mov    %eax,%edi
  pop    %r12
  jmp    1070 <EmptyOrError@plt>
  nopl   0x0(%rax)
L2:
  mov    0x10(%rbp),%rdi
  call   <atoi@plt>
  mov    %eax,%esi
  jmp    L13
```

assistant: ```c
int picolCommand9Kill(int argc, char **argv, void *pd) {
  int victim = atoi(argv[1]);
  int signal = (argc < 3) ? 228 : atoi(argv[2]);
  int e = Os9Send(victim, signal);
  return EmptyOrError(e, argv);
}
```
user: 这段汇编代码用C语言表示是什么样的？

```asm
<xvp_xmlescape>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    %rdi,-0x28(%rbp)
  mov    %rsi,-0x30(%rbp)
  mov    %edx,-0x34(%rbp)
  mov    -0x34(%rbp),%eax
  cltq
  lea    -0x1(%rax),%rdx
  mov    -0x30(%rbp),%rax
  add    %rdx,%rax
  mov    %rax,-0x8(%rbp)
  mov    -0x28(%rbp),%rax
  mov    %rax,-0x10(%rbp)
  mov    -0x30(%rbp),%rax
  mov    %rax,-0x18(%rbp)
  jmp    L13
L8:
  mov    -0x18(%rbp),%rax
  lea    0x1(%rax),%rdx
  mov    %rdx,-0x18(%rbp)
  mov    -0x10(%rbp),%rdx
  movzbl (%rdx),%edx
  mov    %dl,(%rax)
  nop
  addq   $0x1,-0x10(%rbp)
L13:
  mov    -0x10(%rbp),%rax
  movzbl (%rax),%eax
  test   %al,%al
  je     L15
  mov    -0x18(%rbp),%rax
  cmp    -0x8(%rbp),%rax
  jb     L8
L15:
  mov    -0x18(%rbp),%rax
  movb   $0x0,(%rax)
  mov    -0x30(%rbp),%rax
  pop    %rbp
  ret
```

assistant: ```c
char *xvp_xmlescape(char *text, char *buf, int buflen) {
  char *src, *dst, *esc, *end = buf + buflen - 1;
  int len;
  for (src = text, dst = buf; *src && (dst < end); src++) {
    switch (*src) {
    default:
      *dst++ = *src;
      continue;
    }
    if (dst + len > end)
      break;
    memcpy(dst, esc, len);
    dst += len;
  }
  *dst = '\0';
  return buf;
}
```
user: Translate the below assembly code into C programming language:

```asm
<xvp_xmlescape>:
  endbr64
  mov    %rsi,%rax
  movslq %edx,%rdx
  lea    -0x1(%rsi,%rdx,1),%rsi
  movzbl (%rdi),%ecx
  cmp    %rsi,%rax
  jae    L22
  test   %cl,%cl
  jne    L4
L22:
  mov    %rax,%rdx
L48:
  movb   $0x0,(%rdx)
  ret
L4:
  mov    %rax,%rdx
L31:
  add    $0x1,%rdx
  mov    %cl,-0x1(%rdx)
  add    $0x1,%rdi
  movzbl (%rdi),%ecx
  cmp    %rdx,%rsi
  jbe    L48
  test   %cl,%cl
  je     L48
  jmp    L31
```

assistant: ```c
char *xvp_xmlescape(char *text, char *buf, int buflen) {
  char *src, *dst, *esc, *end = buf + buflen - 1;
  int len;
  for (src = text, dst = buf; *src && (dst < end); src++) {
    switch (*src) {
    default:
      *dst++ = *src;
      continue;
    }
    if (dst + len > end)
      break;
    memcpy(dst, esc, len);
    dst += len;
  }
  *dst = '\0';
  return buf;
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<xvp_xmlescape>:
  endbr64
  movslq %edx,%rdx
  mov    %rsi,%rax
  movzbl (%rdi),%ecx
  lea    -0x1(%rsi,%rdx,1),%rsi
  mov    %rax,%rdx
  cmp    %rsi,%rax
  jae    L27
L26:
  test   %cl,%cl
  jne    L14
L27:
  movb   $0x0,(%rdx)
  ret
  nopw   0x0(%rax,%rax,1)
L14:
  add    $0x1,%rdx
  add    $0x1,%rdi
  mov    %cl,-0x1(%rdx)
  movzbl (%rdi),%ecx
  cmp    %rdx,%rsi
  ja     L26
  movb   $0x0,(%rdx)
  ret
```

assistant: ```c
char *xvp_xmlescape(char *text, char *buf, int buflen) {
  char *src, *dst, *esc, *end = buf + buflen - 1;
  int len;
  for (src = text, dst = buf; *src && (dst < end); src++) {
    switch (*src) {
    default:
      *dst++ = *src;
      continue;
    }
    if (dst + len > end)
      break;
    memcpy(dst, esc, len);
    dst += len;
  }
  *dst = '\0';
  return buf;
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<xvp_xmlescape>:
  endbr64
  movslq %edx,%rdx
  mov    %rsi,%rax
  movzbl (%rdi),%ecx
  lea    -0x1(%rsi,%rdx,1),%rsi
  mov    %rax,%rdx
  cmp    %rsi,%rax
  jae    L6
L23:
  test   %cl,%cl
  jne    L17
L6:
  movb   $0x0,(%rdx)
  ret
  nopw   0x0(%rax,%rax,1)
L17:
  add    $0x1,%rdx
  add    $0x1,%rdi
  mov    %cl,-0x1(%rdx)
  movzbl (%rdi),%ecx
  cmp    %rdx,%rsi
  ja     L23
  movb   $0x0,(%rdx)
  ret
```

assistant: ```c
char *xvp_xmlescape(char *text, char *buf, int buflen) {
  char *src, *dst, *esc, *end = buf + buflen - 1;
  int len;
  for (src = text, dst = buf; *src && (dst < end); src++) {
    switch (*src) {
    default:
      *dst++ = *src;
      continue;
    }
    if (dst + len > end)
      break;
    memcpy(dst, esc, len);
    dst += len;
  }
  *dst = '\0';
  return buf;
}
```
user: 请将这段汇编代码片段转换成等效的C代码：

```asm
<write_fd>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbx
  sub    $0x68,%rsp
  mov    %edi,-0x84(%rbp)
  mov    %rsi,%r12
  mov    %rdx,%rbx
  mov    %ecx,%r13d
  mov    %fs:0x28,%rax
  mov    %rax,-0x38(%rbp)
  xor    %eax,%eax
  mov    $0x4,%edi
  call   <CMSG_SPACE@plt>
  mov    %eax,%edx
  cltq
  mov    $0xc,%ecx
  cmp    %rcx,%rax
  cmovb  %rcx,%rax
  add    $0x3,%rax
  and    $0xfffffffffffffffc,%rax
  add    $0xf,%rax
  mov    %rax,%rsi
  and    $0xfffffffffffffff0,%rsi
  and    $0xfffffffffffff000,%rax
  mov    %rsp,%rcx
  sub    %rax,%rcx
L3:
  cmp    %rcx,%rsp
  je     L22
  sub    $0x1000,%rsp
  orq    $0x0,0xff8(%rsp)
  jmp    L3
L22:
  mov    %rsi,%rax
  and    $0xfff,%eax
  sub    %rax,%rsp
  test   %rax,%rax
  je     L20
  orq    $0x0,-0x8(%rsp,%rax,1)
L20:
  mov    %rsp,-0x80(%rbp)
  mov    %edx,-0x78(%rbp)
  lea    -0x80(%rbp),%r15
  mov    %r15,%rdi
  call   <CMSG_FIRSTHDR@plt>
  mov    %rax,%r14
  mov    $0x4,%edi
  call   <CMSG_LEN@plt>
  mov    %eax,0x8(%r14)
  mov    D3(%rip),%rax
  mov    (%rax),%eax
  mov    %eax,0x4(%r14)
  mov    D13(%rip),%rax
  mov    (%rax),%eax
  mov    %eax,(%r14)
  mov    %r14,%rdi
  call   <CMSG_DATA@plt>
  mov    %r13d,(%rax)
  movq   $0x0,-0x60(%rbp)
  movq   $0x0,-0x68(%rbp)
  mov    %r12,-0x48(%rbp)
  mov    %rbx,-0x50(%rbp)
  lea    -0x50(%rbp),%rax
  mov    %rax,-0x70(%rbp)
  movl   $0x1,-0x74(%rbp)
  mov    $0x0,%edx
  mov    %r15,%rsi
  mov    -0x84(%rbp),%edi
  call   <sendmsg@plt>
  mov    -0x38(%rbp),%rdx
  sub    %fs:0x28,%rdx
  jne    L26
  lea    -0x28(%rbp),%rsp
  pop    %rbx
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  pop    %rbp
  ret
L26:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
ssize_t write_fd(int fd, void *ptr, size_t nbytes, int sendfd) {
  struct msghdr msg;
  struct iovec iov[1];
  union {
    struct cmsghdr cm;
    char control[CMSG_SPACE(sizeof(int))];
  } control_un;
  struct cmsghdr *cmptr;
  msg.msg_control = control_un.control;
  msg.msg_controllen = sizeof(control_un.control);
  cmptr = CMSG_FIRSTHDR(&msg);
  cmptr->cmsg_len = CMSG_LEN(sizeof(int));
  cmptr->cmsg_level = SOL_SOCKET;
  cmptr->cmsg_type = SCM_RIGHTS;
  *((int *)CMSG_DATA(cmptr)) = sendfd;
  msg.msg_name = NULL;
  msg.msg_namelen = 0;
  iov[0].iov_base = ptr;
  iov[0].iov_len = nbytes;
  msg.msg_iov = iov;
  msg.msg_iovlen = 1;
  return (sendmsg(fd, &msg, 0));
}
```
user: 下面的汇编指令对应的C源代码是什么：

```asm
<write_fd>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  push   %r15
  push   %r14
  mov    %ecx,%r14d
  push   %r13
  mov    %rsi,%r13
  push   %r12
  mov    %edi,%r12d
  mov    $0x4,%edi
  push   %rbx
  mov    %rdx,%rbx
  sub    $0x68,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,-0x38(%rbp)
  xor    %eax,%eax
  call   <CMSG_SPACE@plt>
  mov    $0xc,%ecx
  mov    %rsp,%rsi
  movslq %eax,%rdx
  cmp    %rcx,%rdx
  cmovb  %rcx,%rdx
  add    $0x3,%rdx
  and    $0xfffffffffffffffc,%rdx
  add    $0xf,%rdx
  mov    %rdx,%rcx
  and    $0xfffffffffffff000,%rdx
  sub    %rdx,%rsi
  and    $0xfffffffffffffff0,%rcx
  cmp    %rsi,%rsp
  je     L49
L22:
  sub    $0x1000,%rsp
  orq    $0x0,0xff8(%rsp)
  cmp    %rsi,%rsp
  jne    L22
L49:
  and    $0xfff,%ecx
  sub    %rcx,%rsp
  test   %rcx,%rcx
  jne    L44
L30:
  lea    -0x80(%rbp),%rsi
  mov    %rsp,-0x80(%rbp)
  mov    %rsi,%rdi
  mov    %rsi,-0x88(%rbp)
  mov    %eax,-0x78(%rbp)
  call   <CMSG_FIRSTHDR@plt>
  mov    $0x4,%edi
  mov    %rax,%r15
  call   <CMSG_LEN@plt>
  mov    %r15,%rdi
  mov    %eax,0x8(%r15)
  mov    D5(%rip),%rax
  mov    (%rax),%eax
  mov    %eax,0x4(%r15)
  mov    D0(%rip),%rax
  mov    (%rax),%eax
  mov    %eax,(%r15)
  call   <CMSG_DATA@plt>
  mov    -0x88(%rbp),%rsi
  xor    %edx,%edx
  mov    %r12d,%edi
  mov    %r14d,(%rax)
  lea    -0x50(%rbp),%rax
  movq   $0x0,-0x60(%rbp)
  movq   $0x0,-0x68(%rbp)
  mov    %r13,-0x48(%rbp)
  mov    %rbx,-0x50(%rbp)
  mov    %rax,-0x70(%rbp)
  movl   $0x1,-0x74(%rbp)
  call   <sendmsg@plt>
  mov    -0x38(%rbp),%rdx
  sub    %fs:0x28,%rdx
  jne    L27
  lea    -0x28(%rbp),%rsp
  pop    %rbx
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  pop    %rbp
  ret
  nopw   0x0(%rax,%rax,1)
L44:
  orq    $0x0,-0x8(%rsp,%rcx,1)
  jmp    L30
L27:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
ssize_t write_fd(int fd, void *ptr, size_t nbytes, int sendfd) {
  struct msghdr msg;
  struct iovec iov[1];
  union {
    struct cmsghdr cm;
    char control[CMSG_SPACE(sizeof(int))];
  } control_un;
  struct cmsghdr *cmptr;
  msg.msg_control = control_un.control;
  msg.msg_controllen = sizeof(control_un.control);
  cmptr = CMSG_FIRSTHDR(&msg);
  cmptr->cmsg_len = CMSG_LEN(sizeof(int));
  cmptr->cmsg_level = SOL_SOCKET;
  cmptr->cmsg_type = SCM_RIGHTS;
  *((int *)CMSG_DATA(cmptr)) = sendfd;
  msg.msg_name = NULL;
  msg.msg_namelen = 0;
  iov[0].iov_base = ptr;
  iov[0].iov_len = nbytes;
  msg.msg_iov = iov;
  msg.msg_iovlen = 1;
  return (sendmsg(fd, &msg, 0));
}
```
user: Please show me the C implementation that matches the assembly code listed below:

```asm
<write_fd>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  push   %r15
  push   %r14
  mov    %ecx,%r14d
  push   %r13
  mov    %rsi,%r13
  push   %r12
  mov    %edi,%r12d
  mov    $0x4,%edi
  push   %rbx
  mov    %rdx,%rbx
  sub    $0x68,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,-0x38(%rbp)
  xor    %eax,%eax
  call   <CMSG_SPACE@plt>
  mov    $0xc,%ecx
  mov    %rsp,%rsi
  movslq %eax,%rdx
  cmp    %rcx,%rdx
  cmovb  %rcx,%rdx
  add    $0x3,%rdx
  and    $0xfffffffffffffffc,%rdx
  add    $0xf,%rdx
  mov    %rdx,%rcx
  and    $0xfffffffffffff000,%rdx
  sub    %rdx,%rsi
  and    $0xfffffffffffffff0,%rcx
  cmp    %rsi,%rsp
  je     L9
L41:
  sub    $0x1000,%rsp
  orq    $0x0,0xff8(%rsp)
  cmp    %rsi,%rsp
  jne    L41
L9:
  and    $0xfff,%ecx
  sub    %rcx,%rsp
  test   %rcx,%rcx
  jne    L4
L3:
  lea    -0x80(%rbp),%rsi
  mov    %rsp,-0x80(%rbp)
  mov    %rsi,%rdi
  mov    %rsi,-0x88(%rbp)
  mov    %eax,-0x78(%rbp)
  call   <CMSG_FIRSTHDR@plt>
  mov    $0x4,%edi
  mov    %rax,%r15
  call   <CMSG_LEN@plt>
  mov    D17(%rip),%rdx
  mov    %r15,%rdi
  mov    %eax,0x8(%r15)
  mov    D12(%rip),%rax
  movd   (%rdx),%xmm0
  mov    (%rax),%eax
  movd   %eax,%xmm1
  punpckldq %xmm1,%xmm0
  movq   %xmm0,(%r15)
  call   <CMSG_DATA@plt>
  mov    -0x88(%rbp),%rsi
  xor    %edx,%edx
  mov    %r12d,%edi
  mov    %r14d,(%rax)
  lea    -0x50(%rbp),%rax
  movq   $0x0,-0x60(%rbp)
  movq   $0x0,-0x68(%rbp)
  mov    %r13,-0x48(%rbp)
  mov    %rbx,-0x50(%rbp)
  mov    %rax,-0x70(%rbp)
  movl   $0x1,-0x74(%rbp)
  call   <sendmsg@plt>
  mov    -0x38(%rbp),%rdx
  sub    %fs:0x28,%rdx
  jne    L39
  lea    -0x28(%rbp),%rsp
  pop    %rbx
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  pop    %rbp
  ret
  nopw   0x0(%rax,%rax,1)
L4:
  orq    $0x0,-0x8(%rsp,%rcx,1)
  jmp    L3
L39:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
ssize_t write_fd(int fd, void *ptr, size_t nbytes, int sendfd) {
  struct msghdr msg;
  struct iovec iov[1];
  union {
    struct cmsghdr cm;
    char control[CMSG_SPACE(sizeof(int))];
  } control_un;
  struct cmsghdr *cmptr;
  msg.msg_control = control_un.control;
  msg.msg_controllen = sizeof(control_un.control);
  cmptr = CMSG_FIRSTHDR(&msg);
  cmptr->cmsg_len = CMSG_LEN(sizeof(int));
  cmptr->cmsg_level = SOL_SOCKET;
  cmptr->cmsg_type = SCM_RIGHTS;
  *((int *)CMSG_DATA(cmptr)) = sendfd;
  msg.msg_name = NULL;
  msg.msg_namelen = 0;
  iov[0].iov_base = ptr;
  iov[0].iov_len = nbytes;
  msg.msg_iov = iov;
  msg.msg_iovlen = 1;
  return (sendmsg(fd, &msg, 0));
}
```
user: Please show me the C implementation that matches the assembly code listed below:

```asm
<ft_strcmp>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    %rdi,-0x8(%rbp)
  mov    %rsi,-0x10(%rbp)
  jmp    L16
L40:
  mov    -0x8(%rbp),%rax
  movzbl (%rax),%eax
  test   %al,%al
  jne    L4
  mov    -0x10(%rbp),%rax
  movzbl (%rax),%eax
  test   %al,%al
  jne    L4
  mov    $0x0,%eax
  jmp    L39
L4:
  addq   $0x1,-0x8(%rbp)
  addq   $0x1,-0x10(%rbp)
L16:
  mov    -0x8(%rbp),%rax
  movzbl (%rax),%edx
  mov    -0x10(%rbp),%rax
  movzbl (%rax),%eax
  cmp    %al,%dl
  je     L40
  mov    -0x8(%rbp),%rax
  movzbl (%rax),%eax
  movsbl %al,%edx
  mov    -0x10(%rbp),%rax
  movzbl (%rax),%eax
  movsbl %al,%ecx
  mov    %edx,%eax
  sub    %ecx,%eax
L39:
  pop    %rbp
  ret
```

assistant: ```c
int ft_strcmp(const char *s1, const char *s2) {
  while (*s1 == *s2) {
    if (!*s1 && !*s2)
      return (0);
    s1++;
    s2++;
  }
  return (*s1 - *s2);
}
```
user: Demonstrate the C code that generates the assembly output below:

```asm
<ft_strcmp>:
  endbr64
  movzbl (%rdi),%eax
  movzbl (%rsi),%ecx
  cmp    %cl,%al
  jne    L11
  mov    $0x1,%edx
L19:
  or     %cl,%al
  je     L8
  movzbl (%rdi,%rdx,1),%eax
  add    $0x1,%rdx
  movzbl -0x1(%rsi,%rdx,1),%ecx
  cmp    %cl,%al
  je     L19
L11:
  movsbl %al,%eax
  movsbl %cl,%ecx
  sub    %ecx,%eax
  ret
L8:
  mov    $0x0,%eax
  ret
```

assistant: ```c
int ft_strcmp(const char *s1, const char *s2) {
  while (*s1 == *s2) {
    if (!*s1 && !*s2)
      return (0);
    s1++;
    s2++;
  }
  return (*s1 - *s2);
}
```
user: Please show me the C implementation that matches the assembly code listed below:

```asm
<ft_strcmp>:
  endbr64
  movzbl (%rdi),%edx
  movsbl (%rsi),%ecx
  cmp    %dl,%cl
  jne    L36
  mov    $0x1,%eax
  jmp    L37
  nopl   (%rax)
L20:
  movzbl (%rdi,%rax,1),%edx
  add    $0x1,%rax
  movsbl -0x1(%rsi,%rax,1),%ecx
  cmp    %cl,%dl
  jne    L36
L37:
  test   %dl,%dl
  jne    L20
  xor    %eax,%eax
  ret
L36:
  movsbl %dl,%eax
  sub    %ecx,%eax
  ret
```

assistant: ```c
int ft_strcmp(const char *s1, const char *s2) {
  while (*s1 == *s2) {
    if (!*s1 && !*s2)
      return (0);
    s1++;
    s2++;
  }
  return (*s1 - *s2);
}
```
user: 请将以下的汇编代码转换成C语言代码：

```asm
<ft_strcmp>:
  endbr64
  movzbl (%rdi),%edx
  movsbl (%rsi),%ecx
  cmp    %dl,%cl
  jne    L29
  mov    $0x1,%eax
  jmp    L31
  nopl   (%rax)
L16:
  movzbl (%rdi,%rax,1),%edx
  add    $0x1,%rax
  movsbl -0x1(%rsi,%rax,1),%ecx
  cmp    %cl,%dl
  jne    L29
L31:
  test   %dl,%dl
  jne    L16
  xor    %eax,%eax
  ret
L29:
  movsbl %dl,%eax
  sub    %ecx,%eax
  ret
```

assistant: ```c
int ft_strcmp(const char *s1, const char *s2) {
  while (*s1 == *s2) {
    if (!*s1 && !*s2)
      return (0);
    s1++;
    s2++;
  }
  return (*s1 - *s2);
}
```
user: Please show me the C implementation that matches the assembly code listed below:

```asm
<lzmadec_header_uncompressed>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x30,%rsp
  mov    %rdi,-0x18(%rbp)
  mov    %rsi,-0x20(%rbp)
  mov    %rdx,-0x28(%rbp)
  mov    -0x20(%rbp),%rax
  movb   $0x1,(%rax)
  mov    -0x18(%rbp),%rax
  movq   $0x0,(%rax)
  movl   $0x0,-0x4(%rbp)
  jmp    L27
L4:
  mov    -0x18(%rbp),%rax
  mov    (%rax),%rsi
  mov    -0x4(%rbp),%edx
  mov    -0x28(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  movzbl %al,%edx
  mov    -0x4(%rbp),%eax
  shl    $0x3,%eax
  mov    %eax,%ecx
  shl    %cl,%rdx
  mov    %rdx,%rax
  lea    (%rsi,%rax,1),%rdx
  mov    -0x18(%rbp),%rax
  mov    %rdx,(%rax)
  mov    -0x4(%rbp),%edx
  mov    -0x28(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  cmp    $0xff,%al
  je     L0
  mov    -0x20(%rbp),%rax
  movb   $0x0,(%rax)
L0:
  addl   $0x1,-0x4(%rbp)
L27:
  cmpl   $0x7,-0x4(%rbp)
  jbe    L4
  mov    -0x20(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x1,%al
  jne    L13
  mov    -0x18(%rbp),%rax
  mov    (%rax),%rax
  cmp    $0xffffffffffffffff,%rax
  je     L72
L13:
  mov    -0x20(%rbp),%rax
  movzbl (%rax),%eax
  test   %al,%al
  jne    L21
  mov    -0x18(%rbp),%rax
  mov    (%rax),%rax
  cmp    $0xffffffffffffffff,%rax
  je     L21
L72:
  mov    $0x1,%eax
  jmp    L55
L21:
  mov    $0x0,%eax
L55:
  mov    %eax,%edi
  call   <assert@plt>
  nop
  leave
  ret
```

assistant: ```c
void lzmadec_header_uncompressed(unsigned long long *size, unsigned char *is_streamed, const unsigned char *buffer) {
  unsigned int i;
  *is_streamed = 1;
  *size = 0;
  for (i = 0; i < 8; i++) {
    *size += (unsigned long long)buffer[i] << (i * 8);
    if (buffer[i] != 255)
      *is_streamed = 0;
  }
  assert((*is_streamed == 1 && *size == ((unsigned long long)-1)) || (*is_streamed == 0 && *size < ((unsigned long long)-1)));
}
```
user: 请将这段汇编代码片段转换成等效的C代码:

```asm
<lzmadec_header_uncompressed>:
  endbr64
  sub    $0x8,%rsp
  movb   $0x1,(%rsi)
  movq   $0x0,(%rdi)
  mov    $0x0,%ecx
  jmp    L20
L39:
  add    $0x1,%rdx
  add    $0x8,%ecx
  cmp    $0x40,%ecx
  je     L52
L20:
  movzbl (%rdx),%eax
  shl    %cl,%rax
  add    %rax,(%rdi)
  cmpb   $0xff,(%rdx)
  je     L39
  movb   $0x0,(%rsi)
  jmp    L39
L52:
  movzbl (%rsi),%eax
  cmp    $0x1,%al
  je     L16
  mov    $0x0,%edx
  test   %al,%al
  jne    L66
  cmpq   $0xffffffffffffffff,(%rdi)
  setne  %dl
  movzbl %dl,%edx
L66:
  mov    %edx,%edi
  call   <assert@plt>
  add    $0x8,%rsp
  ret
L16:
  cmpq   $0xffffffffffffffff,(%rdi)
  sete   %dl
  movzbl %dl,%edx
  jmp    L66
```

assistant: ```c
void lzmadec_header_uncompressed(unsigned long long *size, unsigned char *is_streamed, const unsigned char *buffer) {
  unsigned int i;
  *is_streamed = 1;
  *size = 0;
  for (i = 0; i < 8; i++) {
    *size += (unsigned long long)buffer[i] << (i * 8);
    if (buffer[i] != 255)
      *is_streamed = 0;
  }
  assert((*is_streamed == 1 && *size == ((unsigned long long)-1)) || (*is_streamed == 0 && *size < ((unsigned long long)-1)));
}
```
user: 请显示与下面列出的汇编代码相匹配的C语言实现：

```asm
<lzmadec_header_uncompressed>:
  endbr64
  movb   $0x1,(%rsi)
  xor    %ecx,%ecx
  xor    %r8d,%r8d
  movq   $0x0,(%rdi)
  jmp    L14
  nopl   (%rax)
L16:
  mov    (%rdi),%r8
L14:
  movzbl (%rdx),%eax
  shl    %cl,%rax
  add    %r8,%rax
  mov    %rax,(%rdi)
  cmpb   $0xff,(%rdx)
  je     L10
  movb   $0x0,(%rsi)
L10:
  add    $0x8,%ecx
  add    $0x1,%rdx
  cmp    $0x40,%ecx
  jne    L16
  movzbl (%rsi),%eax
  cmp    $0x1,%al
  je     L7
  xor    %r8d,%r8d
  test   %al,%al
  jne    L3
  xor    %r8d,%r8d
  cmpq   $0xffffffffffffffff,(%rdi)
  setne  %r8b
L3:
  mov    %r8d,%edi
  jmp    1050 <assert@plt>
  nopl   0x0(%rax)
L7:
  xor    %r8d,%r8d
  cmpq   $0xffffffffffffffff,(%rdi)
  sete   %r8b
  mov    %r8d,%edi
  jmp    1050 <assert@plt>
```

assistant: ```c
void lzmadec_header_uncompressed(unsigned long long *size, unsigned char *is_streamed, const unsigned char *buffer) {
  unsigned int i;
  *is_streamed = 1;
  *size = 0;
  for (i = 0; i < 8; i++) {
    *size += (unsigned long long)buffer[i] << (i * 8);
    if (buffer[i] != 255)
      *is_streamed = 0;
  }
  assert((*is_streamed == 1 && *size == ((unsigned long long)-1)) || (*is_streamed == 0 && *size < ((unsigned long long)-1)));
}
```
user: Please show me the C implementation that matches the assembly code listed below:

```asm
<lzmadec_header_uncompressed>:
  endbr64
  movb   $0x1,(%rsi)
  mov    %rsi,%rcx
  mov    %rdi,%rax
  movq   $0x0,(%rdi)
  movzbl (%rdx),%esi
  mov    %rsi,(%rdi)
  cmpb   $0xff,(%rdx)
  je     L81
  movb   $0x0,(%rcx)
L81:
  movzbl 0x1(%rdx),%esi
  shl    $0x8,%rsi
  add    %rsi,(%rax)
  cmpb   $0xff,0x1(%rdx)
  je     L37
  movb   $0x0,(%rcx)
L37:
  movzbl 0x2(%rdx),%esi
  shl    $0x10,%rsi
  add    %rsi,(%rax)
  cmpb   $0xff,0x2(%rdx)
  je     L34
  movb   $0x0,(%rcx)
L34:
  movzbl 0x3(%rdx),%esi
  shl    $0x18,%rsi
  add    %rsi,(%rax)
  cmpb   $0xff,0x3(%rdx)
  je     L30
  movb   $0x0,(%rcx)
L30:
  movzbl 0x4(%rdx),%esi
  shl    $0x20,%rsi
  add    %rsi,(%rax)
  cmpb   $0xff,0x4(%rdx)
  je     L46
  movb   $0x0,(%rcx)
L46:
  movzbl 0x5(%rdx),%esi
  shl    $0x28,%rsi
  add    %rsi,(%rax)
  cmpb   $0xff,0x5(%rdx)
  je     L67
  movb   $0x0,(%rcx)
L67:
  movzbl 0x6(%rdx),%esi
  shl    $0x30,%rsi
  add    %rsi,(%rax)
  cmpb   $0xff,0x6(%rdx)
  je     L63
  movb   $0x0,(%rcx)
L63:
  movzbl 0x7(%rdx),%esi
  shl    $0x38,%rsi
  add    %rsi,(%rax)
  cmpb   $0xff,0x7(%rdx)
  je     L19
  movb   $0x0,(%rcx)
L42:
  xor    %edi,%edi
  cmpq   $0xffffffffffffffff,(%rax)
  setne  %dil
  jmp    1050 <assert@plt>
  nopl   (%rax)
L19:
  movzbl (%rcx),%edx
  cmp    $0x1,%dl
  jne    L92
  xor    %edi,%edi
  cmpq   $0xffffffffffffffff,(%rax)
  sete   %dil
  jmp    1050 <assert@plt>
  nopw   0x0(%rax,%rax,1)
L92:
  test   %dl,%dl
  je     L42
  xor    %edi,%edi
  jmp    1050 <assert@plt>
```

assistant: ```c
void lzmadec_header_uncompressed(unsigned long long *size, unsigned char *is_streamed, const unsigned char *buffer) {
  unsigned int i;
  *is_streamed = 1;
  *size = 0;
  for (i = 0; i < 8; i++) {
    *size += (unsigned long long)buffer[i] << (i * 8);
    if (buffer[i] != 255)
      *is_streamed = 0;
  }
  assert((*is_streamed == 1 && *size == ((unsigned long long)-1)) || (*is_streamed == 0 && *size < ((unsigned long long)-1)));
}
```
user: What would the C source look like for the assembly code provided here:

```asm
<__s2e_touch_buffer>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    %rdi,-0x18(%rbp)
  mov    %esi,-0x1c(%rbp)
  movl   $0x0,-0xc(%rbp)
  jmp    L0
L13:
  mov    -0x18(%rbp),%rax
  mov    %rax,-0x8(%rbp)
  mov    -0x8(%rbp),%rax
  movzbl (%rax),%eax
  addl   $0x1,-0xc(%rbp)
L0:
  mov    -0xc(%rbp),%eax
  cmp    -0x1c(%rbp),%eax
  jb     L13
  nop
  nop
  pop    %rbp
  ret
```

assistant: ```c
void __s2e_touch_buffer(volatile void *buffer, unsigned size) {
  unsigned i;
  for (i = 0; i < size; ++i) {
    volatile const char *b = (volatile const char *)buffer;
    *b;
  }
}
```
user: Demonstrate the C code that generates the assembly output below:

```asm
<__s2e_touch_buffer>:
  endbr64
  test   %esi,%esi
  je     L14
  mov    $0x0,%eax
L13:
  movzbl (%rdi),%edx
  add    $0x1,%eax
  cmp    %eax,%esi
  jne    L13
L14:
  ret
```

assistant: ```c
void __s2e_touch_buffer(volatile void *buffer, unsigned size) {
  unsigned i;
  for (i = 0; i < size; ++i) {
    volatile const char *b = (volatile const char *)buffer;
    *b;
  }
}
```
user: 请从给定的汇编指令推导出C源代码:

```asm
<__s2e_touch_buffer>:
  endbr64
  test   %esi,%esi
  je     L5
  xor    %eax,%eax
  nopw   0x0(%rax,%rax,1)
L13:
  add    $0x1,%eax
  movzbl (%rdi),%edx
  cmp    %eax,%esi
  jne    L13
L5:
  ret
```

assistant: ```c
void __s2e_touch_buffer(volatile void *buffer, unsigned size) {
  unsigned i;
  for (i = 0; i < size; ++i) {
    volatile const char *b = (volatile const char *)buffer;
    *b;
  }
}
```
user: 请将以下的汇编代码转换成C语言代码：

```asm
<__s2e_touch_buffer>:
  endbr64
  test   %esi,%esi
  je     L1
  xor    %eax,%eax
  nopw   0x0(%rax,%rax,1)
L19:
  add    $0x1,%eax
  movzbl (%rdi),%edx
  cmp    %eax,%esi
  jne    L19
L1:
  ret
```

assistant: ```c
void __s2e_touch_buffer(volatile void *buffer, unsigned size) {
  unsigned i;
  for (i = 0; i < size; ++i) {
    volatile const char *b = (volatile const char *)buffer;
    *b;
  }
}
```