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

```asm
<grabWord>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x40,%rsp
  mov    %rdi,-0x28(%rbp)
  mov    %rsi,-0x30(%rbp)
  mov    %edx,-0x34(%rbp)
  mov    -0x28(%rbp),%rax
  mov    %rax,%rdi
  call   <skipWS@plt>
  mov    -0x28(%rbp),%rax
  mov    (%rax),%rax
  mov    %rax,-0x8(%rbp)
  mov    -0x8(%rbp),%rax
  movzbl (%rax),%eax
  test   %al,%al
  jne    L133
  mov    $0x0,%eax
  jmp    L23
L133:
  mov    -0x8(%rbp),%rax
  mov    %rax,-0x10(%rbp)
  mov    -0x10(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x2c,%al
  je     L130
  mov    -0x10(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x3b,%al
  je     L130
  mov    -0x10(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x29,%al
  je     L130
  mov    -0x10(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x5d,%al
  je     L130
  mov    -0x10(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x7d,%al
  jne    L13
L130:
  addq   $0x1,-0x10(%rbp)
  jmp    L148
L27:
  addq   $0x1,-0x10(%rbp)
L13:
  mov    -0x10(%rbp),%rax
  movzbl (%rax),%eax
  test   %al,%al
  je     L148
  mov    -0x10(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x23,%al
  je     L148
  mov    -0x10(%rbp),%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  mov    %eax,%edi
  call   <isspace@plt>
  test   %eax,%eax
  jne    L148
  mov    -0x10(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x2c,%al
  je     L148
  mov    -0x10(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x3b,%al
  je     L148
  mov    -0x10(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x29,%al
  je     L148
  mov    -0x10(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x5d,%al
  je     L148
  mov    -0x10(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x7d,%al
  jne    L27
L148:
  mov    -0x10(%rbp),%rax
  sub    -0x8(%rbp),%rax
  mov    %eax,-0x14(%rbp)
  mov    -0x14(%rbp),%eax
  cmp    -0x34(%rbp),%eax
  jl     L49
  mov    $0x0,%eax
  jmp    L23
L49:
  mov    -0x14(%rbp),%edx
  mov    -0x8(%rbp),%rcx
  mov    -0x30(%rbp),%rax
  mov    %rcx,%rsi
  mov    %rax,%rdi
  call   <memcpy@plt>
  mov    -0x14(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x30(%rbp),%rax
  add    %rdx,%rax
  movb   $0x0,(%rax)
  mov    -0x28(%rbp),%rax
  mov    -0x10(%rbp),%rdx
  mov    %rdx,(%rax)
  mov    $0x1,%eax
L23:
  leave
  ret
```

assistant: ```c
int grabWord(char **pp, char *buf, int buflen) {
  char *p, *q;
  int len;
  skipWS(pp);
  p = *pp;
  if (!*p)
    return 0;
  q = p;
  if (*q == ',' || *q == ';' || *q == ')' || *q == ']' || *q == '}') {
    q++;
  } else {
    while (*q && *q != '#' && !isspace(*q) && (*q != ',' && *q != ';' && *q != ')' && *q != ']' && *q != '}'))
      q++;
  }
  len = q - p;
  if (len >= buflen)
    return 0;
  memcpy(buf, p, len);
  buf[len] = 0;
  *pp = q;
  return 1;
}
```
user: 请将以下的汇编代码转换成C语言代码:

```asm
<grabWord>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x8,%rsp
  mov    %rdi,%rbp
  mov    %rsi,%r14
  mov    %edx,%r13d
  call   <skipWS@plt>
  mov    0x0(%rbp),%r12
  movzbl (%r12),%edi
  mov    $0x0,%eax
  test   %dil,%dil
  je     L101
  cmp    $0x3b,%dil
  jg     L15
  cmp    $0x28,%dil
  jg     L108
  cmp    $0x23,%dil
  jne    L24
  mov    %r12,%rbx
  jmp    L122
L108:
  movabs $0x800120000000000,%rax
  bt     %rdi,%rax
  jb     L47
  mov    %r12,%rbx
L134:
  movabs $0x800120000000000,%r15
  jmp    L162
L15:
  mov    %edi,%eax
  and    $0xffffffdf,%eax
  mov    %r12,%rbx
  cmp    $0x5d,%al
  jne    L134
L47:
  lea    0x1(%r12),%rbx
L122:
  mov    %rbx,%r15
  sub    %r12,%r15
  mov    %r15d,%edx
  mov    $0x0,%eax
  cmp    %r13d,%r15d
  jl     L142
L101:
  add    $0x8,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L24:
  mov    %r12,%rbx
  jmp    L134
L96:
  and    $0xffffffdf,%ecx
  cmp    $0x5d,%cl
  je     L122
  test   %al,%al
  je     L122
  add    $0x1,%rbx
  movzbl (%rbx),%edi
  test   %dil,%dil
  je     L122
  cmp    $0x23,%dil
  je     L122
L162:
  movsbl %dil,%edi
  call   <isspace@plt>
  test   %eax,%eax
  jne    L122
  movzbl (%rbx),%ecx
  mov    $0x1,%eax
  cmp    $0x3b,%cl
  ja     L96
  mov    %r15,%rax
  shr    %cl,%rax
  xor    $0x1,%rax
  and    $0x1,%eax
  jmp    L96
L142:
  mov    %r12,%rsi
  mov    %r14,%rdi
  call   <memcpy@plt>
  movslq %r15d,%r15
  movb   $0x0,(%r14,%r15,1)
  mov    %rbx,0x0(%rbp)
  mov    $0x1,%eax
  jmp    L101
```

assistant: ```c
int grabWord(char **pp, char *buf, int buflen) {
  char *p, *q;
  int len;
  skipWS(pp);
  p = *pp;
  if (!*p)
    return 0;
  q = p;
  if (*q == ',' || *q == ';' || *q == ')' || *q == ']' || *q == '}') {
    q++;
  } else {
    while (*q && *q != '#' && !isspace(*q) && (*q != ',' && *q != ';' && *q != ')' && *q != ']' && *q != '}'))
      q++;
  }
  len = q - p;
  if (len >= buflen)
    return 0;
  memcpy(buf, p, len);
  buf[len] = 0;
  *pp = q;
  return 1;
}
```
user: 请将以下的汇编代码转换成C语言代码:

```asm
<grabWord>:
  endbr64
  push   %r15
  push   %r14
  mov    %rsi,%r14
  push   %r13
  mov    %edx,%r13d
  push   %r12
  push   %rbp
  push   %rbx
  mov    %rdi,%rbx
  sub    $0x8,%rsp
  call   <skipWS@plt>
  mov    (%rbx),%rbp
  movsbl 0x0(%rbp),%edi
  test   %dil,%dil
  je     L6
  cmp    $0x3b,%dil
  jg     L25
  cmp    $0x28,%dil
  jg     L143
  mov    %rbp,%r15
  cmp    $0x23,%dil
  jne    L9
  xor    %r12d,%r12d
  jmp    L39
  xchg   %ax,%ax
L25:
  mov    %edi,%eax
  and    $0xffffffdf,%eax
  cmp    $0x5d,%al
  je     L89
L94:
  mov    %rbp,%r15
L9:
  movabs $0xf7ffedffffffffff,%r12
  jmp    L121
  nopl   0x0(%rax)
L142:
  test   %al,%al
  je     L52
  movsbl 0x1(%r15),%edi
  add    $0x1,%r15
  test   %dil,%dil
  je     L52
  cmp    $0x23,%dil
  je     L52
L121:
  call   <isspace@plt>
  test   %eax,%eax
  jne    L52
  movzbl (%r15),%ecx
  mov    %r12,%rax
  mov    $0x1,%edx
  sar    %cl,%rax
  and    $0x1,%eax
  cmp    $0x3c,%cl
  cmovae %edx,%eax
  and    $0xffffffdf,%ecx
  cmp    $0x5d,%cl
  jne    L142
L52:
  mov    %r15d,%r12d
  sub    %ebp,%r12d
L39:
  cmp    %r12d,%r13d
  jle    L6
L77:
  mov    %r12d,%edx
  mov    %rbp,%rsi
  mov    %r14,%rdi
  movslq %r12d,%r12
  call   <memcpy@plt>
  movb   $0x0,(%r14,%r12,1)
  mov    $0x1,%eax
  mov    %r15,(%rbx)
  add    $0x8,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
  nopl   0x0(%rax)
L143:
  movabs $0x800120000000000,%rax
  bt     %rdi,%rax
  jae    L94
L89:
  mov    $0x1,%r12d
  lea    0x1(%rbp),%r15
  cmp    %r12d,%r13d
  jg     L77
L6:
  add    $0x8,%rsp
  xor    %eax,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
```

assistant: ```c
int grabWord(char **pp, char *buf, int buflen) {
  char *p, *q;
  int len;
  skipWS(pp);
  p = *pp;
  if (!*p)
    return 0;
  q = p;
  if (*q == ',' || *q == ';' || *q == ')' || *q == ']' || *q == '}') {
    q++;
  } else {
    while (*q && *q != '#' && !isspace(*q) && (*q != ',' && *q != ';' && *q != ')' && *q != ']' && *q != '}'))
      q++;
  }
  len = q - p;
  if (len >= buflen)
    return 0;
  memcpy(buf, p, len);
  buf[len] = 0;
  *pp = q;
  return 1;
}
```
user: Please show me the C implementation that matches the assembly code listed below:

```asm
<grabWord>:
  endbr64
  push   %r15
  push   %r14
  mov    %rsi,%r14
  push   %r13
  mov    %edx,%r13d
  push   %r12
  push   %rbp
  push   %rbx
  mov    %rdi,%rbx
  sub    $0x8,%rsp
  call   <skipWS@plt>
  mov    (%rbx),%rbp
  movsbl 0x0(%rbp),%edi
  test   %dil,%dil
  je     L98
  cmp    $0x3b,%dil
  jg     L27
  cmp    $0x28,%dil
  jg     L9
  mov    %rbp,%r15
  cmp    $0x23,%dil
  jne    L97
  xor    %r12d,%r12d
  jmp    L93
  xchg   %ax,%ax
L27:
  mov    %edi,%eax
  and    $0xffffffdf,%eax
  cmp    $0x5d,%al
  je     L87
L66:
  mov    %rbp,%r15
L97:
  movabs $0xf7ffedffffffffff,%r12
  jmp    L109
  nopl   0x0(%rax)
L123:
  test   %al,%al
  je     L25
  movsbl 0x1(%r15),%edi
  add    $0x1,%r15
  test   %dil,%dil
  je     L25
  cmp    $0x23,%dil
  je     L25
L109:
  call   <isspace@plt>
  test   %eax,%eax
  jne    L25
  movzbl (%r15),%ecx
  mov    %r12,%rax
  mov    $0x1,%edx
  sar    %cl,%rax
  and    $0x1,%eax
  cmp    $0x3c,%cl
  cmovae %edx,%eax
  and    $0xffffffdf,%ecx
  cmp    $0x5d,%cl
  jne    L123
L25:
  mov    %r15d,%r12d
  sub    %ebp,%r12d
L93:
  cmp    %r12d,%r13d
  jle    L98
L137:
  mov    %r12d,%edx
  mov    %rbp,%rsi
  mov    %r14,%rdi
  movslq %r12d,%r12
  call   <memcpy@plt>
  movb   $0x0,(%r14,%r12,1)
  mov    $0x1,%eax
  mov    %r15,(%rbx)
  add    $0x8,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
  nopl   0x0(%rax)
L9:
  movabs $0x800120000000000,%rax
  bt     %rdi,%rax
  jae    L66
L87:
  mov    $0x1,%r12d
  lea    0x1(%rbp),%r15
  cmp    %r12d,%r13d
  jg     L137
L98:
  add    $0x8,%rsp
  xor    %eax,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
```

assistant: ```c
int grabWord(char **pp, char *buf, int buflen) {
  char *p, *q;
  int len;
  skipWS(pp);
  p = *pp;
  if (!*p)
    return 0;
  q = p;
  if (*q == ',' || *q == ';' || *q == ')' || *q == ']' || *q == '}') {
    q++;
  } else {
    while (*q && *q != '#' && !isspace(*q) && (*q != ',' && *q != ';' && *q != ')' && *q != ']' && *q != '}'))
      q++;
  }
  len = q - p;
  if (len >= buflen)
    return 0;
  memcpy(buf, p, len);
  buf[len] = 0;
  *pp = q;
  return 1;
}
```
user: Demonstrate the C code that generates the assembly output below:

```asm
<pagetable_alloc>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x30,%rsp
  mov    %rdi,-0x18(%rbp)
  mov    %esi,-0x1c(%rbp)
  mov    %edx,-0x20(%rbp)
  mov    %ecx,-0x24(%rbp)
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
  mov    -0x20(%rbp),%eax
  shr    $0xc,%eax
  mov    %eax,-0xc(%rbp)
  mov    -0x20(%rbp),%eax
  and    $0xfff,%eax
  test   %eax,%eax
  je     L9
  addl   $0x1,-0xc(%rbp)
L9:
  andl   $0xfffff000,-0x1c(%rbp)
  jmp    L18
L19:
  lea    -0x10(%rbp),%rdx
  mov    -0x1c(%rbp),%ecx
  mov    -0x18(%rbp),%rax
  mov    %ecx,%esi
  mov    %rax,%rdi
  call   <pagetable_getmap@plt>
  test   %eax,%eax
  jne    L12
  mov    -0x24(%rbp),%eax
  or     $0x2,%eax
  mov    %eax,%edx
  mov    -0x1c(%rbp),%esi
  mov    -0x18(%rbp),%rax
  mov    %edx,%ecx
  mov    $0x0,%edx
  mov    %rax,%rdi
  call   <pagetable_map@plt>
L12:
  addl   $0x1000,-0x1c(%rbp)
  subl   $0x1,-0xc(%rbp)
L18:
  cmpl   $0x0,-0xc(%rbp)
  jne    L19
  nop
  mov    -0x8(%rbp),%rax
  sub    %fs:0x28,%rax
  je     L49
  call   <__stack_chk_fail@plt>
L49:
  leave
  ret
```

assistant: ```c
void pagetable_alloc(struct pagetable *p, unsigned vaddr, unsigned length, int flags) {
  unsigned npages = length / 4096;
  if (length % 4096) {
    npages++;
  }
  vaddr &= 0xfffff000;
  while (npages > 0) {
    unsigned paddr;
    if (!pagetable_getmap(p, vaddr, &paddr)) {
      pagetable_map(p, vaddr, 0, flags | 2);
    }
    vaddr += 4096;
    npages--;
  }
}
```
user: 请从给定的汇编指令推导出C源代码:

```asm
<pagetable_alloc>:
  endbr64
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x10,%rsp
  mov    %rdi,%r12
  mov    %esi,%ebx
  mov    %ecx,%r14d
  mov    %fs:0x28,%rax
  mov    %rax,0x8(%rsp)
  xor    %eax,%eax
  mov    %edx,%ebp
  shr    $0xc,%ebp
  test   $0xfff,%edx
  je     L34
  add    $0x1,%ebp
  and    $0xfffff000,%ebx
L29:
  lea    0x4(%rsp),%r13
  jmp    L19
L34:
  and    $0xfffff000,%ebx
  cmp    $0xfff,%edx
  ja     L29
L46:
  mov    0x8(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L18
  add    $0x10,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  ret
L52:
  add    $0x1000,%ebx
  sub    $0x1,%ebp
  je     L46
L19:
  mov    %r13,%rdx
  mov    %ebx,%esi
  mov    %r12,%rdi
  call   <pagetable_getmap@plt>
  test   %eax,%eax
  jne    L52
  mov    %r14d,%ecx
  or     $0x2,%ecx
  mov    $0x0,%edx
  mov    %ebx,%esi
  mov    %r12,%rdi
  call   <pagetable_map@plt>
  jmp    L52
L18:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
void pagetable_alloc(struct pagetable *p, unsigned vaddr, unsigned length, int flags) {
  unsigned npages = length / 4096;
  if (length % 4096) {
    npages++;
  }
  vaddr &= 0xfffff000;
  while (npages > 0) {
    unsigned paddr;
    if (!pagetable_getmap(p, vaddr, &paddr)) {
      pagetable_map(p, vaddr, 0, flags | 2);
    }
    vaddr += 4096;
    npages--;
  }
}
```
user: 这段汇编代码用C语言表示是什么样的？

```asm
<pagetable_alloc>:
  endbr64
  push   %r14
  and    $0xfffff000,%esi
  push   %r13
  push   %r12
  mov    %rdi,%r12
  push   %rbp
  mov    %edx,%ebp
  push   %rbx
  shr    $0xc,%ebp
  mov    %esi,%ebx
  sub    $0x10,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x8(%rsp)
  xor    %eax,%eax
  and    $0xfff,%edx
  je     L22
  add    $0x1,%ebp
L28:
  or     $0x2,%ecx
  lea    0x4(%rsp),%r13
  mov    %ecx,%r14d
  jmp    L40
  nopl   0x0(%rax,%rax,1)
L46:
  add    $0x1000,%ebx
  sub    $0x1,%ebp
  je     L62
L40:
  mov    %r13,%rdx
  mov    %ebx,%esi
  mov    %r12,%rdi
  call   <pagetable_getmap@plt>
  test   %eax,%eax
  jne    L46
  mov    %ebx,%esi
  mov    %r14d,%ecx
  xor    %edx,%edx
  mov    %r12,%rdi
  call   <pagetable_map@plt>
  add    $0x1000,%ebx
  sub    $0x1,%ebp
  jne    L40
L62:
  mov    0x8(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L72
  add    $0x10,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  ret
  nopl   0x0(%rax,%rax,1)
L22:
  test   %ebp,%ebp
  jne    L28
  jmp    L62
L72:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
void pagetable_alloc(struct pagetable *p, unsigned vaddr, unsigned length, int flags) {
  unsigned npages = length / 4096;
  if (length % 4096) {
    npages++;
  }
  vaddr &= 0xfffff000;
  while (npages > 0) {
    unsigned paddr;
    if (!pagetable_getmap(p, vaddr, &paddr)) {
      pagetable_map(p, vaddr, 0, flags | 2);
    }
    vaddr += 4096;
    npages--;
  }
}
```
user: 请将这段汇编代码片段转换成等效的C代码：

```asm
<pagetable_alloc>:
  endbr64
  push   %r14
  and    $0xfffff000,%esi
  push   %r13
  push   %r12
  mov    %rdi,%r12
  push   %rbp
  mov    %edx,%ebp
  push   %rbx
  shr    $0xc,%ebp
  mov    %esi,%ebx
  sub    $0x10,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x8(%rsp)
  xor    %eax,%eax
  and    $0xfff,%edx
  je     L49
  add    $0x1,%ebp
L61:
  or     $0x2,%ecx
  lea    0x4(%rsp),%r13
  mov    %ecx,%r14d
  cs nopw 0x0(%rax,%rax,1)
L63:
  mov    %r13,%rdx
  mov    %ebx,%esi
  mov    %r12,%rdi
  call   <pagetable_getmap@plt>
  test   %eax,%eax
  je     L56
  add    $0x1000,%ebx
  sub    $0x1,%ebp
  jne    L63
L22:
  mov    0x8(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L66
  add    $0x10,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  ret
  nopl   0x0(%rax)
L56:
  mov    %ebx,%esi
  mov    %r14d,%ecx
  xor    %edx,%edx
  mov    %r12,%rdi
  call   <pagetable_map@plt>
  add    $0x1000,%ebx
  sub    $0x1,%ebp
  jne    L63
  jmp    L22
  nopl   0x0(%rax)
L49:
  test   %ebp,%ebp
  jne    L61
  jmp    L22
L66:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
void pagetable_alloc(struct pagetable *p, unsigned vaddr, unsigned length, int flags) {
  unsigned npages = length / 4096;
  if (length % 4096) {
    npages++;
  }
  vaddr &= 0xfffff000;
  while (npages > 0) {
    unsigned paddr;
    if (!pagetable_getmap(p, vaddr, &paddr)) {
      pagetable_map(p, vaddr, 0, flags | 2);
    }
    vaddr += 4096;
    npages--;
  }
}
```
user: Please show me the C implementation that matches the assembly code listed below:

```asm
<kattach_thedawn_chkpass>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x20,%rsp
  mov    %rdi,-0x18(%rbp)
  mov    %rsi,-0x20(%rbp)
  mov    -0x18(%rbp),%rax
  movzbl (%rax),%eax
  test   %al,%al
  jne    L19
  mov    $0x0,%eax
  jmp    L6
L19:
  mov    -0x20(%rbp),%rdx
  mov    -0x18(%rbp),%rax
  mov    %rdx,%rsi
  mov    %rax,%rdi
  call   <crypt@plt>
  mov    %rax,-0x8(%rbp)
  mov    -0x8(%rbp),%rax
L6:
  leave
  ret
```

assistant: ```c
char *kattach_thedawn_chkpass(char *dfpass, char *encpass) {
  char *passwd;
  if (strlen(dfpass) == 0)
    return (NULL);
  passwd = crypt(dfpass, encpass);
  return (passwd);
}
```
user: 下面的汇编指令对应的C源代码是什么：

```asm
<kattach_thedawn_chkpass>:
  endbr64
  mov    $0x0,%eax
  cmpb   $0x0,(%rdi)
  je     L1
  sub    $0x8,%rsp
  call   <crypt@plt>
  add    $0x8,%rsp
  ret
L1:
  ret
```

assistant: ```c
char *kattach_thedawn_chkpass(char *dfpass, char *encpass) {
  char *passwd;
  if (strlen(dfpass) == 0)
    return (NULL);
  passwd = crypt(dfpass, encpass);
  return (passwd);
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<kattach_thedawn_chkpass>:
  endbr64
  cmpb   $0x0,(%rdi)
  je     L0
  jmp    1050 <crypt@plt>
  xchg   %ax,%ax
L0:
  xor    %eax,%eax
  ret
```

assistant: ```c
char *kattach_thedawn_chkpass(char *dfpass, char *encpass) {
  char *passwd;
  if (strlen(dfpass) == 0)
    return (NULL);
  passwd = crypt(dfpass, encpass);
  return (passwd);
}
```
user: 请从给定的汇编指令推导出C源代码:

```asm
<kattach_thedawn_chkpass>:
  endbr64
  cmpb   $0x0,(%rdi)
  je     L5
  jmp    1050 <crypt@plt>
  xchg   %ax,%ax
L5:
  xor    %eax,%eax
  ret
```

assistant: ```c
char *kattach_thedawn_chkpass(char *dfpass, char *encpass) {
  char *passwd;
  if (strlen(dfpass) == 0)
    return (NULL);
  passwd = crypt(dfpass, encpass);
  return (passwd);
}
```
user: Demonstrate the C code that generates the assembly output below:

```asm
<main>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x10,%rsp
  cmpl   $0x0,-0x4(%rbp)
  js     L28
  cmpl   $0x1,-0x4(%rbp)
  jg     L28
  cmpl   $0x1,-0x8(%rbp)
  jne    L28
  mov    $0x1,%eax
  jmp    L68
L28:
  mov    $0x0,%eax
L68:
  mov    %eax,%edi
  call   <assume@plt>
L70:
  addl   $0x1,-0x8(%rbp)
  subl   $0x1,-0x4(%rbp)
  mov    -0x8(%rbp),%edx
  mov    -0x4(%rbp),%eax
  add    %edx,%eax
  test   %eax,%eax
  jle    L81
  mov    -0x8(%rbp),%edx
  mov    -0x4(%rbp),%eax
  add    %edx,%eax
  cmp    $0x2,%eax
  jg     L81
  cmpl   $0x0,-0x8(%rbp)
  jle    L81
  mov    $0x1,%eax
  jmp    L87
L81:
  mov    $0x0,%eax
L87:
  mov    %eax,%edi
  call   <assert@plt>
  jmp    L70
```

assistant: ```c
int main() {
  int i;
  int k;
  assume(0 <= k && k <= 1 && i == 1);
  while (1) {
    i = i + 1;
    k = k - 1;
    assert(1 <= i + k && i + k <= 2 && i >= 1);
  }
  return 0;
}
```
user: Translate the below assembly code into C programming language:

```asm
<main>:
  endbr64
  sub    $0x8,%rsp
  mov    $0x0,%edi
  call   <assume@plt>
L8:
  mov    $0x0,%edi
  call   <assert@plt>
  jmp    L8
```

assistant: ```c
int main() {
  int i;
  int k;
  assume(0 <= k && k <= 1 && i == 1);
  while (1) {
    i = i + 1;
    k = k - 1;
    assert(1 <= i + k && i + k <= 2 && i >= 1);
  }
  return 0;
}
```
user: 下面的汇编指令对应的C源代码是什么:

```asm
<main>:
  endbr64
  sub    $0x8,%rsp
  xor    %edi,%edi
  call   <assume@plt>
  nop
L0:
  xor    %edi,%edi
  call   <assert@plt>
  jmp    L0
```

assistant: ```c
int main() {
  int i;
  int k;
  assume(0 <= k && k <= 1 && i == 1);
  while (1) {
    i = i + 1;
    k = k - 1;
    assert(1 <= i + k && i + k <= 2 && i >= 1);
  }
  return 0;
}
```
user: What would the C source look like for the assembly code provided here?

```asm
<main>:
  endbr64
  sub    $0x8,%rsp
  xor    %edi,%edi
  call   <assume@plt>
  nop
L9:
  xor    %edi,%edi
  call   <assert@plt>
  jmp    L9
```

assistant: ```c
int main() {
  int i;
  int k;
  assume(0 <= k && k <= 1 && i == 1);
  while (1) {
    i = i + 1;
    k = k - 1;
    assert(1 <= i + k && i + k <= 2 && i >= 1);
  }
  return 0;
}
```
user: 请将这段汇编代码片段转换成等效的C代码:

```asm
<makeoutname>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x20,%rsp
  mov    %rdi,-0x18(%rbp)
  movl   $0xffffffff,-0xc(%rbp)
  movl   $0x0,-0x10(%rbp)
  jmp    L18
L3:
  mov    -0x10(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  cmp    $0x2e,%al
  jne    L13
  mov    -0x10(%rbp),%eax
  mov    %eax,-0xc(%rbp)
L13:
  addl   $0x1,-0x10(%rbp)
L18:
  mov    -0x18(%rbp),%rax
  mov    %rax,%rdi
  call   <ccstrlen@plt>
  cmp    %eax,-0x10(%rbp)
  jl     L3
  cmpl   $0x0,-0xc(%rbp)
  js     L8
  mov    -0xc(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  movb   $0x0,(%rax)
L8:
  mov    -0x18(%rbp),%rax
  mov    %rax,%rdi
  call   <ccstrcpy@plt>
  mov    %rax,-0x8(%rbp)
  mov    -0x8(%rbp),%rax
  mov    $0x2e,%esi
  mov    %rax,%rdi
  call   <ccstrcat@plt>
  mov    %rax,-0x8(%rbp)
  mov    -0x8(%rbp),%rax
  mov    $0x61,%esi
  mov    %rax,%rdi
  call   <ccstrcat@plt>
  mov    %rax,-0x8(%rbp)
  mov    -0x8(%rbp),%rax
  mov    $0x73,%esi
  mov    %rax,%rdi
  call   <ccstrcat@plt>
  mov    %rax,-0x8(%rbp)
  mov    -0x8(%rbp),%rax
  mov    $0x6d,%esi
  mov    %rax,%rdi
  call   <ccstrcat@plt>
  mov    %rax,-0x8(%rbp)
  mov    -0x8(%rbp),%rax
  leave
  ret
```

assistant: ```c
char *makeoutname(char *inname) {
  char *outname;
  int i, j = -1;
  for (i = 0; i < ccstrlen(inname); i++)
    if (inname[i] == '.')
      j = i;
  if (j >= 0) {
    inname[j] = 0;
  }
  outname = ccstrcpy(inname);
  outname = ccstrcat(outname, '.');
  outname = ccstrcat(outname, 'a');
  outname = ccstrcat(outname, 's');
  outname = ccstrcat(outname, 'm');
  return outname;
}
```
user: 这段汇编代码用C语言表示是什么样的？

```asm
<makeoutname>:
  endbr64
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x8,%rsp
  mov    %rdi,%rbp
  mov    $0x0,%ebx
  mov    $0xffffffff,%r12d
  jmp    L22
L23:
  cmpb   $0x2e,0x0(%rbp,%rbx,1)
  cmove  %r13d,%r12d
  add    $0x1,%rbx
L22:
  mov    %ebx,%r13d
  mov    %rbp,%rdi
  call   <ccstrlen@plt>
  cmp    %ebx,%eax
  jg     L23
  test   %r12d,%r12d
  js     L15
  movslq %r12d,%r12
  movb   $0x0,0x0(%rbp,%r12,1)
L15:
  mov    %rbp,%rdi
  call   <ccstrcpy@plt>
  mov    %rax,%rdi
  mov    $0x2e,%esi
  call   <ccstrcat@plt>
  mov    %rax,%rdi
  mov    $0x61,%esi
  call   <ccstrcat@plt>
  mov    %rax,%rdi
  mov    $0x73,%esi
  call   <ccstrcat@plt>
  mov    %rax,%rdi
  mov    $0x6d,%esi
  call   <ccstrcat@plt>
  add    $0x8,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
```

assistant: ```c
char *makeoutname(char *inname) {
  char *outname;
  int i, j = -1;
  for (i = 0; i < ccstrlen(inname); i++)
    if (inname[i] == '.')
      j = i;
  if (j >= 0) {
    inname[j] = 0;
  }
  outname = ccstrcpy(inname);
  outname = ccstrcat(outname, '.');
  outname = ccstrcat(outname, 'a');
  outname = ccstrcat(outname, 's');
  outname = ccstrcat(outname, 'm');
  return outname;
}
```
user: Please show me the C implementation that matches the assembly code listed below:

```asm
<makeoutname>:
  endbr64
  push   %r12
  mov    $0xffffffff,%r12d
  push   %rbp
  mov    %rdi,%rbp
  push   %rbx
  xor    %ebx,%ebx
  jmp    L10
  nopl   (%rax)
L0:
  cmpb   $0x2e,0x0(%rbp,%rbx,1)
  cmove  %ebx,%r12d
  add    $0x1,%rbx
L10:
  mov    %rbp,%rdi
  call   <ccstrlen@plt>
  cmp    %ebx,%eax
  jg     L0
  cmp    $0xffffffff,%r12d
  je     L9
  movslq %r12d,%r12
  movb   $0x0,0x0(%rbp,%r12,1)
L9:
  mov    %rbp,%rdi
  call   <ccstrcpy@plt>
  mov    $0x2e,%esi
  mov    %rax,%rdi
  call   <ccstrcat@plt>
  mov    $0x61,%esi
  mov    %rax,%rdi
  call   <ccstrcat@plt>
  mov    $0x73,%esi
  mov    %rax,%rdi
  call   <ccstrcat@plt>
  pop    %rbx
  mov    $0x6d,%esi
  pop    %rbp
  mov    %rax,%rdi
  pop    %r12
  jmp    1090 <ccstrcat@plt>
```

assistant: ```c
char *makeoutname(char *inname) {
  char *outname;
  int i, j = -1;
  for (i = 0; i < ccstrlen(inname); i++)
    if (inname[i] == '.')
      j = i;
  if (j >= 0) {
    inname[j] = 0;
  }
  outname = ccstrcpy(inname);
  outname = ccstrcat(outname, '.');
  outname = ccstrcat(outname, 'a');
  outname = ccstrcat(outname, 's');
  outname = ccstrcat(outname, 'm');
  return outname;
}
```