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

```asm
<vsofont_write_string_2D>:
  endbr64
  push   %r12
  push   %rbp
  sub    $0x18,%rsp
  movss  %xmm0,0xc(%rsp)
  movss  %xmm1,0x8(%rsp)
  test   %rdi,%rdi
  je     L10
  mov    %rsi,%r12
  test   %rsi,%rsi
  je     L10
  xor    %eax,%eax
  mov    %rdi,%rbp
  call   <glPushMatrix@plt>
  movss  0x8(%rsp),%xmm1
  movss  0xc(%rsp),%xmm0
  xor    %edi,%edi
  call   <glTranslatef@plt>
  mov    %r12,%rsi
  mov    %rbp,%rdi
  call   <_vsofont_write_string@plt>
  xor    %eax,%eax
  call   <glPopMatrix@plt>
  add    $0x18,%rsp
  mov    $0x1,%eax
  pop    %rbp
  pop    %r12
  ret
L10:
  add    $0x18,%rsp
  xor    %eax,%eax
  pop    %rbp
  pop    %r12
  ret
```

assistant: ```c
int vsofont_write_string_2D(struct vsofont *font, char *s, float x, float y) {
  if (font == NULL || s == NULL)
    return 0;
  glPushMatrix();
  glTranslatef(x, y, 0);
  _vsofont_write_string(font, (unsigned char *)s);
  glPopMatrix();
  return 1;
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<isAuthenticatedAsAdministratorForTask>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  push   %r14
  push   %r13
  push   %r12
  push   %rbx
  sub    $0x10,%rsp
  mov    %edi,%ebx
  mov    %fs:0x28,%rax
  mov    %rax,-0x28(%rbp)
  xor    %eax,%eax
  call   <isAuthenticatedAsRoot@plt>
  mov    %rax,%rdx
  mov    $0x1,%eax
  test   %rdx,%rdx
  je     L38
L71:
  mov    -0x28(%rbp),%rdx
  sub    %fs:0x28,%rdx
  jne    L97
  lea    -0x20(%rbp),%rsp
  pop    %rbx
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %rbp
  ret
L38:
  mov    $0x0,%eax
  call   <getuid@plt>
  mov    %rax,%rdx
  mov    $0x0,%eax
  test   %rdx,%rdx
  je     L71
  mov    %rsp,%r12
  mov    D8(%rip),%rax
  mov    (%rax),%edi
  movslq %edi,%rax
  lea    0xf(,%rax,8),%rax
  mov    %rax,%rcx
  and    $0xfffffffffffffff0,%rcx
  and    $0xfffffffffffff000,%rax
  mov    %rsp,%rdx
  sub    %rax,%rdx
L103:
  cmp    %rdx,%rsp
  je     L117
  sub    $0x1000,%rsp
  orq    $0x0,0xff8(%rsp)
  jmp    L103
L117:
  mov    %rcx,%rax
  and    $0xfff,%eax
  sub    %rax,%rsp
  test   %rax,%rax
  je     L128
  orq    $0x0,-0x8(%rsp,%rax,1)
L128:
  mov    %rsp,%r14
  mov    %r14,%rsi
  call   <getgroups@plt>
  mov    %eax,%r13d
  mov    $0x0,%eax
  test   %r13d,%r13d
  jg     L121
L44:
  mov    %r12,%rsp
  jmp    L71
L121:
  mov    %ebx,%edi
  call   <groupNameForTask@plt>
  mov    %eax,%edi
  call   <getgrnam@plt>
  mov    %rax,%rdx
  mov    $0x0,%eax
  test   %rdx,%rdx
  je     L44
  mov    (%rdx),%rdx
  mov    %r14,%rax
  lea    -0x1(%r13),%ecx
  lea    0x8(%r14,%rcx,8),%rcx
L67:
  cmp    %rdx,(%rax)
  je     L51
  add    $0x8,%rax
  cmp    %rcx,%rax
  jne    L67
  mov    $0x0,%eax
  jmp    L44
L51:
  mov    $0x1,%eax
  jmp    L44
L97:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
int isAuthenticatedAsAdministratorForTask(int taskNum) {
  int admin = 0;
  uid_t ruid;
  if (isAuthenticatedAsRoot()) {
    return 1;
  }
  ruid = getuid();
  if (ruid) {
    gid_t groups[NGROUPS_MAX];
    int numgroups;
    if ((numgroups = getgroups(NGROUPS_MAX, groups)) > 0) {
      int i;
      gid_t admingid = 0;
      struct group *admingroup;
      if ((admingroup = getgrnam(groupNameForTask(taskNum))) != NULL) {
        admingid = admingroup->gr_gid;
        for (i = 0; i < numgroups; i++) {
          if (groups[i] == admingid) {
            admin = 1;
            break;
          }
        }
      }
    }
  }
  return admin;
}
```
user: 请将以下的汇编代码转换成C语言代码：

```asm
<isAuthenticatedAsAdministratorForTask>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  push   %r14
  push   %r13
  push   %r12
  mov    %edi,%r12d
  push   %rbx
  sub    $0x10,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,-0x28(%rbp)
  xor    %eax,%eax
  call   <isAuthenticatedAsRoot@plt>
  mov    %rax,%r8
  mov    $0x1,%eax
  test   %r8,%r8
  je     L6
L58:
  mov    -0x28(%rbp),%rdx
  sub    %fs:0x28,%rdx
  jne    L27
  lea    -0x20(%rbp),%rsp
  pop    %rbx
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %rbp
  ret
  nopw   0x0(%rax,%rax,1)
L6:
  xor    %eax,%eax
  call   <getuid@plt>
  mov    %rax,%r8
  xor    %eax,%eax
  test   %r8,%r8
  je     L58
  mov    D4(%rip),%rax
  mov    %rsp,%rcx
  mov    %rsp,%r13
  movslq (%rax),%rax
  mov    %rax,%rdi
  lea    0xf(,%rax,8),%rax
  mov    %rax,%rdx
  and    $0xfffffffffffff000,%rax
  sub    %rax,%rcx
  and    $0xfffffffffffffff0,%rdx
  cmp    %rcx,%rsp
  je     L114
L4:
  sub    $0x1000,%rsp
  orq    $0x0,0xff8(%rsp)
  cmp    %rcx,%rsp
  jne    L4
L114:
  and    $0xfff,%edx
  sub    %rdx,%rsp
  test   %rdx,%rdx
  je     L53
  orq    $0x0,-0x8(%rsp,%rdx,1)
L53:
  mov    %rsp,%rbx
  mov    %rbx,%rsi
  call   <getgroups@plt>
  mov    %eax,%r14d
  test   %eax,%eax
  jg     L70
L122:
  xor    %eax,%eax
L46:
  mov    %r13,%rsp
  jmp    L58
  cs nopw 0x0(%rax,%rax,1)
L70:
  mov    %r12d,%edi
  call   <groupNameForTask@plt>
  mov    %eax,%edi
  call   <getgrnam@plt>
  test   %rax,%rax
  je     L122
  lea    -0x1(%r14),%ecx
  mov    (%rax),%rdx
  mov    %rbx,%rax
  lea    0x8(%rbx,%rcx,8),%rcx
  nopl   0x0(%rax,%rax,1)
L52:
  cmp    %rdx,(%rax)
  je     L40
  add    $0x8,%rax
  cmp    %rcx,%rax
  jne    L52
  jmp    L122
  nopl   0x0(%rax,%rax,1)
L40:
  mov    $0x1,%eax
  jmp    L46
L27:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
int isAuthenticatedAsAdministratorForTask(int taskNum) {
  int admin = 0;
  uid_t ruid;
  if (isAuthenticatedAsRoot()) {
    return 1;
  }
  ruid = getuid();
  if (ruid) {
    gid_t groups[NGROUPS_MAX];
    int numgroups;
    if ((numgroups = getgroups(NGROUPS_MAX, groups)) > 0) {
      int i;
      gid_t admingid = 0;
      struct group *admingroup;
      if ((admingroup = getgrnam(groupNameForTask(taskNum))) != NULL) {
        admingid = admingroup->gr_gid;
        for (i = 0; i < numgroups; i++) {
          if (groups[i] == admingid) {
            admin = 1;
            break;
          }
        }
      }
    }
  }
  return admin;
}
```
user: 提供的汇编代码用C语言表示会是什么样子：

```asm
<isAuthenticatedAsAdministratorForTask>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  push   %r14
  push   %r13
  push   %r12
  mov    %edi,%r12d
  push   %rbx
  sub    $0x10,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,-0x28(%rbp)
  xor    %eax,%eax
  call   <isAuthenticatedAsRoot@plt>
  mov    %rax,%r8
  mov    $0x1,%eax
  test   %r8,%r8
  je     L36
L97:
  mov    -0x28(%rbp),%rdx
  sub    %fs:0x28,%rdx
  jne    L7
  lea    -0x20(%rbp),%rsp
  pop    %rbx
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %rbp
  ret
  nopw   0x0(%rax,%rax,1)
L36:
  xor    %eax,%eax
  call   <getuid@plt>
  mov    %rax,%r8
  xor    %eax,%eax
  test   %r8,%r8
  je     L97
  mov    D4(%rip),%rax
  mov    %rsp,%rcx
  mov    %rsp,%r13
  movslq (%rax),%rax
  mov    %rax,%rdi
  lea    0xf(,%rax,8),%rax
  mov    %rax,%rdx
  and    $0xfffffffffffff000,%rax
  sub    %rax,%rcx
  and    $0xfffffffffffffff0,%rdx
  cmp    %rcx,%rsp
  je     L14
L129:
  sub    $0x1000,%rsp
  orq    $0x0,0xff8(%rsp)
  cmp    %rcx,%rsp
  jne    L129
L14:
  and    $0xfff,%edx
  sub    %rdx,%rsp
  test   %rdx,%rdx
  je     L38
  orq    $0x0,-0x8(%rsp,%rdx,1)
L38:
  mov    %rsp,%rbx
  mov    %rbx,%rsi
  call   <getgroups@plt>
  mov    %eax,%r14d
  test   %eax,%eax
  jg     L111
L34:
  xor    %eax,%eax
L106:
  mov    %r13,%rsp
  jmp    L97
  cs nopw 0x0(%rax,%rax,1)
L111:
  mov    %r12d,%edi
  call   <groupNameForTask@plt>
  mov    %eax,%edi
  call   <getgrnam@plt>
  test   %rax,%rax
  je     L34
  lea    -0x1(%r14),%ecx
  mov    (%rax),%rdx
  mov    %rbx,%rax
  lea    0x8(%rbx,%rcx,8),%rcx
  nopl   0x0(%rax,%rax,1)
L128:
  cmp    %rdx,(%rax)
  je     L107
  add    $0x8,%rax
  cmp    %rcx,%rax
  jne    L128
  jmp    L34
  nopl   0x0(%rax,%rax,1)
L107:
  mov    $0x1,%eax
  jmp    L106
L7:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
int isAuthenticatedAsAdministratorForTask(int taskNum) {
  int admin = 0;
  uid_t ruid;
  if (isAuthenticatedAsRoot()) {
    return 1;
  }
  ruid = getuid();
  if (ruid) {
    gid_t groups[NGROUPS_MAX];
    int numgroups;
    if ((numgroups = getgroups(NGROUPS_MAX, groups)) > 0) {
      int i;
      gid_t admingid = 0;
      struct group *admingroup;
      if ((admingroup = getgrnam(groupNameForTask(taskNum))) != NULL) {
        admingid = admingroup->gr_gid;
        for (i = 0; i < numgroups; i++) {
          if (groups[i] == admingid) {
            admin = 1;
            break;
          }
        }
      }
    }
  }
  return admin;
}
```
user: 请显示与下面列出的汇编代码相匹配的C语言实现:

```asm
<eiki_dup2>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x20,%rsp
  mov    %edi,-0x14(%rbp)
  mov    %esi,-0x18(%rbp)
L0:
  mov    -0x18(%rbp),%edx
  mov    -0x14(%rbp),%eax
  mov    %edx,%esi
  mov    %eax,%edi
  call   <dup2@plt>
  mov    %eax,-0x4(%rbp)
  cmpl   $0x0,-0x4(%rbp)
  je     L18
  mov    D17(%rip),%rax
  mov    (%rax),%rdx
  mov    D12(%rip),%rax
  mov    (%rax),%rax
  cmp    %rax,%rdx
  jne    L36
  jmp    L0
L18:
  nop
  jmp    L25
L36:
  nop
L25:
  mov    -0x4(%rbp),%eax
  leave
  ret
```

assistant: ```c
int eiki_dup2(int oldfd, int newfd) {
  int rv;
  while (1) {
    rv = dup2(oldfd, newfd);
    if (!rv) {
      break;
    } else if (errno != EINTR) {
      break;
    }
  }
  return rv;
}
```
user: 下面的汇编指令对应的C源代码是什么：

```asm
<eiki_dup2>:
  endbr64
  push   %rbp
  push   %rbx
  sub    $0x8,%rsp
  mov    %edi,%ebp
  mov    %esi,%ebx
L3:
  mov    %ebx,%esi
  mov    %ebp,%edi
  call   <dup2@plt>
  test   %eax,%eax
  je     L9
  mov    D12(%rip),%rcx
  mov    D8(%rip),%rdx
  mov    (%rdx),%rsi
  cmp    %rsi,(%rcx)
  je     L3
L9:
  add    $0x8,%rsp
  pop    %rbx
  pop    %rbp
  ret
```

assistant: ```c
int eiki_dup2(int oldfd, int newfd) {
  int rv;
  while (1) {
    rv = dup2(oldfd, newfd);
    if (!rv) {
      break;
    } else if (errno != EINTR) {
      break;
    }
  }
  return rv;
}
```
user: What is the c source code of the assembly code below?

```asm
<eiki_dup2>:
  endbr64
  push   %rbp
  mov    %edi,%ebp
  push   %rbx
  mov    %esi,%ebx
  sub    $0x8,%rsp
  jmp    L25
L14:
  mov    D3(%rip),%rdx
  mov    D13(%rip),%rcx
  mov    (%rdx),%rsi
  cmp    %rsi,(%rcx)
  jne    L1
L25:
  mov    %ebx,%esi
  mov    %ebp,%edi
  call   <dup2@plt>
  test   %eax,%eax
  jne    L14
L1:
  add    $0x8,%rsp
  pop    %rbx
  pop    %rbp
  ret
```

assistant: ```c
int eiki_dup2(int oldfd, int newfd) {
  int rv;
  while (1) {
    rv = dup2(oldfd, newfd);
    if (!rv) {
      break;
    } else if (errno != EINTR) {
      break;
    }
  }
  return rv;
}
```
user: 请将这段汇编代码片段转换成等效的C代码：

```asm
<eiki_dup2>:
  endbr64
  push   %rbp
  mov    %edi,%ebp
  push   %rbx
  mov    %esi,%ebx
  sub    $0x8,%rsp
  jmp    L17
L14:
  mov    D4(%rip),%rdx
  mov    D2(%rip),%rcx
  mov    (%rdx),%rsi
  cmp    %rsi,(%rcx)
  jne    L5
L17:
  mov    %ebx,%esi
  mov    %ebp,%edi
  call   <dup2@plt>
  test   %eax,%eax
  jne    L14
L5:
  add    $0x8,%rsp
  pop    %rbx
  pop    %rbp
  ret
```

assistant: ```c
int eiki_dup2(int oldfd, int newfd) {
  int rv;
  while (1) {
    rv = dup2(oldfd, newfd);
    if (!rv) {
      break;
    } else if (errno != EINTR) {
      break;
    }
  }
  return rv;
}
```
user: What would the C source look like for the assembly code provided here:

```asm
<harness>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x20,%rsp
  mov    %edi,-0x14(%rbp)
  mov    %esi,-0x18(%rbp)
  mov    %edx,-0x1c(%rbp)
  mov    $0x2,%edi
  call   <ring_buffer_create@plt>
  mov    %rax,-0x8(%rbp)
  cmpq   $0x0,-0x8(%rbp)
  je     L10
  mov    -0x14(%rbp),%edx
  mov    -0x8(%rbp),%rax
  mov    %edx,%esi
  mov    %rax,%rdi
  call   <ring_buffer_push@plt>
  mov    -0x18(%rbp),%edx
  mov    -0x8(%rbp),%rax
  mov    %edx,%esi
  mov    %rax,%rdi
  call   <ring_buffer_push@plt>
  mov    -0x8(%rbp),%rax
  mov    %rax,%rdi
  call   <ring_buffer_pop@plt>
  mov    %eax,-0xc(%rbp)
  mov    -0x1c(%rbp),%edx
  mov    -0x8(%rbp),%rax
  mov    %edx,%esi
  mov    %rax,%rdi
  call   <ring_buffer_push@plt>
  mov    -0x8(%rbp),%rax
  mov    %rax,%rdi
  call   <ring_buffer_pop@plt>
  mov    %eax,-0xc(%rbp)
  mov    -0x8(%rbp),%rax
  mov    %rax,%rdi
  call   <ring_buffer_pop@plt>
  mov    %eax,-0xc(%rbp)
  mov    -0x8(%rbp),%rax
  mov    %rax,%rdi
  call   <ring_buffer_dispose@plt>
  jmp    L17
L10:
  nop
L17:
  leave
  ret
```

assistant: ```c
void harness(int x, int y, int z) {
  struct ring_buffer *b = ring_buffer_create(2);
  if (b == 0)
    return;
  ring_buffer_push(b, x);
  ring_buffer_push(b, y);
  int h = ring_buffer_pop(b);
  ring_buffer_push(b, z);
  h = ring_buffer_pop(b);
  h = ring_buffer_pop(b);
  ring_buffer_dispose(b);
}
```
user: What is the c source code of the assembly code below:

```asm
<harness>:
  endbr64
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x8,%rsp
  mov    %edi,%r12d
  mov    %esi,%r13d
  mov    %edx,%ebp
  mov    $0x2,%edi
  call   <ring_buffer_create@plt>
  test   %rax,%rax
  je     L8
  mov    %rax,%rbx
  mov    %r12d,%esi
  mov    %rax,%rdi
  call   <ring_buffer_push@plt>
  mov    %r13d,%esi
  mov    %rbx,%rdi
  call   <ring_buffer_push@plt>
  mov    %rbx,%rdi
  call   <ring_buffer_pop@plt>
  mov    %ebp,%esi
  mov    %rbx,%rdi
  call   <ring_buffer_push@plt>
  mov    %rbx,%rdi
  call   <ring_buffer_pop@plt>
  mov    %rbx,%rdi
  call   <ring_buffer_pop@plt>
  mov    %rbx,%rdi
  call   <ring_buffer_dispose@plt>
L8:
  add    $0x8,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
```

assistant: ```c
void harness(int x, int y, int z) {
  struct ring_buffer *b = ring_buffer_create(2);
  if (b == 0)
    return;
  ring_buffer_push(b, x);
  ring_buffer_push(b, y);
  int h = ring_buffer_pop(b);
  ring_buffer_push(b, z);
  h = ring_buffer_pop(b);
  h = ring_buffer_pop(b);
  ring_buffer_dispose(b);
}
```
user: Please show me the C implementation that matches the assembly code listed below:

```asm
<harness>:
  endbr64
  push   %r14
  mov    %edi,%r14d
  mov    $0x2,%edi
  push   %r13
  mov    %esi,%r13d
  push   %r12
  mov    %edx,%r12d
  push   %rbp
  sub    $0x8,%rsp
  call   <ring_buffer_create@plt>
  test   %rax,%rax
  je     L2
  mov    %rax,%rbp
  mov    %r14d,%esi
  mov    %rax,%rdi
  call   <ring_buffer_push@plt>
  mov    %r13d,%esi
  mov    %rbp,%rdi
  call   <ring_buffer_push@plt>
  mov    %rbp,%rdi
  call   <ring_buffer_pop@plt>
  mov    %r12d,%esi
  mov    %rbp,%rdi
  call   <ring_buffer_push@plt>
  mov    %rbp,%rdi
  call   <ring_buffer_pop@plt>
  mov    %rbp,%rdi
  call   <ring_buffer_pop@plt>
  add    $0x8,%rsp
  mov    %rbp,%rdi
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  jmp    1080 <ring_buffer_dispose@plt>
  cs nopw 0x0(%rax,%rax,1)
L2:
  add    $0x8,%rsp
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  ret
```

assistant: ```c
void harness(int x, int y, int z) {
  struct ring_buffer *b = ring_buffer_create(2);
  if (b == 0)
    return;
  ring_buffer_push(b, x);
  ring_buffer_push(b, y);
  int h = ring_buffer_pop(b);
  ring_buffer_push(b, z);
  h = ring_buffer_pop(b);
  h = ring_buffer_pop(b);
  ring_buffer_dispose(b);
}
```
user: 请从给定的汇编指令推导出C源代码:

```asm
<harness>:
  endbr64
  push   %r14
  mov    %edi,%r14d
  mov    $0x2,%edi
  push   %r13
  mov    %esi,%r13d
  push   %r12
  mov    %edx,%r12d
  push   %rbp
  sub    $0x8,%rsp
  call   <ring_buffer_create@plt>
  test   %rax,%rax
  je     L4
  mov    %rax,%rbp
  mov    %r14d,%esi
  mov    %rax,%rdi
  call   <ring_buffer_push@plt>
  mov    %r13d,%esi
  mov    %rbp,%rdi
  call   <ring_buffer_push@plt>
  mov    %rbp,%rdi
  call   <ring_buffer_pop@plt>
  mov    %r12d,%esi
  mov    %rbp,%rdi
  call   <ring_buffer_push@plt>
  mov    %rbp,%rdi
  call   <ring_buffer_pop@plt>
  mov    %rbp,%rdi
  call   <ring_buffer_pop@plt>
  add    $0x8,%rsp
  mov    %rbp,%rdi
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  jmp    1080 <ring_buffer_dispose@plt>
  cs nopw 0x0(%rax,%rax,1)
L4:
  add    $0x8,%rsp
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  ret
```

assistant: ```c
void harness(int x, int y, int z) {
  struct ring_buffer *b = ring_buffer_create(2);
  if (b == 0)
    return;
  ring_buffer_push(b, x);
  ring_buffer_push(b, y);
  int h = ring_buffer_pop(b);
  ring_buffer_push(b, z);
  h = ring_buffer_pop(b);
  h = ring_buffer_pop(b);
  ring_buffer_dispose(b);
}
```
user: Demonstrate the C code that generates the assembly output below:

```asm
<num_digits>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x10,%rsp
  mov    %edi,-0x4(%rbp)
  cmpl   $0x9,-0x4(%rbp)
  ja     L19
  mov    $0x1,%eax
  jmp    L2
L19:
  mov    -0x4(%rbp),%eax
  mov    %eax,%edx
  mov    $0xcccccccd,%eax
  imul   %rdx,%rax
  shr    $0x20,%rax
  shr    $0x3,%eax
  mov    %eax,%edi
  call   <num_digits>
  add    $0x1,%eax
L2:
  leave
  ret
```

assistant: ```c
unsigned num_digits(unsigned int n) {
  if (n < 10)
    return 1;
  return 1 + num_digits(n / 10);
}
```
user: 下面的汇编指令对应的C源代码是什么:

```asm
<num_digits>:
  endbr64
  mov    $0x1,%eax
  cmp    $0x9,%edi
  ja     L0
  ret
L0:
  sub    $0x8,%rsp
  mov    %edi,%edi
  mov    $0xcccccccd,%eax
  imul   %rax,%rdi
  shr    $0x23,%rdi
  call   <num_digits>
  add    $0x1,%eax
  add    $0x8,%rsp
  ret
```

assistant: ```c
unsigned num_digits(unsigned int n) {
  if (n < 10)
    return 1;
  return 1 + num_digits(n / 10);
}
```
user: What is the c source code of the assembly code below?

```asm
<num_digits>:
  endbr64
  mov    $0x1,%r8d
  mov    $0xcccccccd,%edx
  cmp    $0x9,%edi
  jbe    L13
  nopl   0x0(%rax)
L17:
  mov    %edi,%edi
  add    $0x1,%r8d
  mov    %rdi,%rax
  imul   %rdx,%rdi
  shr    $0x23,%rdi
  cmp    $0x63,%eax
  ja     L17
L13:
  mov    %r8d,%eax
  ret
```

assistant: ```c
unsigned num_digits(unsigned int n) {
  if (n < 10)
    return 1;
  return 1 + num_digits(n / 10);
}
```
user: 请将这段汇编代码片段转换成等效的C代码:

```asm
<num_digits>:
  endbr64
  mov    $0x1,%r8d
  mov    $0xcccccccd,%edx
  cmp    $0x9,%edi
  jbe    L6
  nopl   0x0(%rax)
L12:
  mov    %edi,%edi
  add    $0x1,%r8d
  mov    %rdi,%rax
  imul   %rdx,%rdi
  shr    $0x23,%rdi
  cmp    $0x63,%eax
  ja     L12
L6:
  mov    %r8d,%eax
  ret
```

assistant: ```c
unsigned num_digits(unsigned int n) {
  if (n < 10)
    return 1;
  return 1 + num_digits(n / 10);
}
```
user: 请将这段汇编代码片段转换成等效的C代码：

```asm
<VIM_JPEG_SetTimerInterval>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x20,%rsp
  mov    %rdi,-0x18(%rbp)
  mov    %rsi,-0x20(%rbp)
  mov    -0x20(%rbp),%rax
  shr    $0x3,%rax
  movabs $0x20c49ba5e353f7cf,%rdx
  mul    %rdx
  mov    %rdx,%rax
  shr    $0x4,%rax
  mov    %ax,-0x2(%rbp)
  movzwl -0x2(%rbp),%eax
  mov    -0x18(%rbp),%rdx
  imul   %rdx,%rax
  mov    %rax,-0x18(%rbp)
  mov    -0x18(%rbp),%rax
  shr    $0x18,%rax
  movzbl %al,%eax
  mov    %eax,%esi
  mov    $0x64,%edi
  call   <VIM_HIF_SetReg8@plt>
  mov    -0x18(%rbp),%rax
  shr    $0x10,%rax
  movzbl %al,%eax
  mov    %eax,%esi
  mov    $0x65,%edi
  call   <VIM_HIF_SetReg8@plt>
  mov    -0x18(%rbp),%rax
  shr    $0x8,%rax
  movzbl %al,%eax
  mov    %eax,%esi
  mov    $0x66,%edi
  call   <VIM_HIF_SetReg8@plt>
  mov    -0x18(%rbp),%rax
  movzbl %al,%eax
  mov    %eax,%esi
  mov    $0x67,%edi
  call   <VIM_HIF_SetReg8@plt>
  nop
  leave
  ret
```

assistant: ```c
void VIM_JPEG_SetTimerInterval(unsigned long dwMs, unsigned long dwMclk) {
  unsigned short Num1Ms;
  Num1Ms = dwMclk / 1000;
  dwMs *= Num1Ms;
  VIM_HIF_SetReg8((0x0000 + 0x064), (unsigned char)(dwMs >> 24));
  VIM_HIF_SetReg8((0x0000 + 0x065), (unsigned char)(dwMs >> 16));
  VIM_HIF_SetReg8((0x0000 + 0x066), (unsigned char)(dwMs >> 8));
  VIM_HIF_SetReg8((0x0000 + 0x067), (unsigned char)dwMs);
}
```
user: Demonstrate the C code that generates the assembly output below:

```asm
<VIM_JPEG_SetTimerInterval>:
  endbr64
  push   %rbx
  shr    $0x3,%rsi
  movabs $0x20c49ba5e353f7cf,%rdx
  mov    %rsi,%rax
  mul    %rdx
  shr    $0x4,%rdx
  movzwl %dx,%ebx
  imul   %rdi,%rbx
  mov    %ebx,%esi
  shr    $0x18,%esi
  mov    $0x64,%edi
  call   <VIM_HIF_SetReg8@plt>
  mov    %rbx,%rsi
  shr    $0x10,%rsi
  movzbl %sil,%esi
  mov    $0x65,%edi
  call   <VIM_HIF_SetReg8@plt>
  movzbl %bh,%esi
  mov    $0x66,%edi
  call   <VIM_HIF_SetReg8@plt>
  movzbl %bl,%esi
  mov    $0x67,%edi
  call   <VIM_HIF_SetReg8@plt>
  pop    %rbx
  ret
```

assistant: ```c
void VIM_JPEG_SetTimerInterval(unsigned long dwMs, unsigned long dwMclk) {
  unsigned short Num1Ms;
  Num1Ms = dwMclk / 1000;
  dwMs *= Num1Ms;
  VIM_HIF_SetReg8((0x0000 + 0x064), (unsigned char)(dwMs >> 24));
  VIM_HIF_SetReg8((0x0000 + 0x065), (unsigned char)(dwMs >> 16));
  VIM_HIF_SetReg8((0x0000 + 0x066), (unsigned char)(dwMs >> 8));
  VIM_HIF_SetReg8((0x0000 + 0x067), (unsigned char)dwMs);
}
```
user: 请显示与下面列出的汇编代码相匹配的C语言实现:

```asm
<VIM_JPEG_SetTimerInterval>:
  endbr64
  movabs $0x20c49ba5e353f7cf,%rdx
  shr    $0x3,%rsi
  push   %rbx
  mov    %rsi,%rax
  mul    %rdx
  shr    $0x4,%rdx
  movzwl %dx,%ebx
  imul   %rdi,%rbx
  mov    $0x64,%edi
  mov    %ebx,%esi
  shr    $0x18,%esi
  call   <VIM_HIF_SetReg8@plt>
  mov    %rbx,%rsi
  mov    $0x65,%edi
  shr    $0x10,%rsi
  movzbl %sil,%esi
  call   <VIM_HIF_SetReg8@plt>
  movzbl %bh,%esi
  mov    $0x66,%edi
  call   <VIM_HIF_SetReg8@plt>
  movzbl %bl,%esi
  mov    $0x67,%edi
  pop    %rbx
  jmp    1050 <VIM_HIF_SetReg8@plt>
```

assistant: ```c
void VIM_JPEG_SetTimerInterval(unsigned long dwMs, unsigned long dwMclk) {
  unsigned short Num1Ms;
  Num1Ms = dwMclk / 1000;
  dwMs *= Num1Ms;
  VIM_HIF_SetReg8((0x0000 + 0x064), (unsigned char)(dwMs >> 24));
  VIM_HIF_SetReg8((0x0000 + 0x065), (unsigned char)(dwMs >> 16));
  VIM_HIF_SetReg8((0x0000 + 0x066), (unsigned char)(dwMs >> 8));
  VIM_HIF_SetReg8((0x0000 + 0x067), (unsigned char)dwMs);
}
```
user: 下面的汇编指令对应的C源代码是什么：

```asm
<VIM_JPEG_SetTimerInterval>:
  endbr64
  movabs $0x20c49ba5e353f7cf,%rdx
  shr    $0x3,%rsi
  push   %rbx
  mov    %rsi,%rax
  mul    %rdx
  shr    $0x4,%rdx
  movzwl %dx,%ebx
  imul   %rdi,%rbx
  mov    $0x64,%edi
  mov    %ebx,%esi
  shr    $0x18,%esi
  call   <VIM_HIF_SetReg8@plt>
  mov    %rbx,%rsi
  mov    $0x65,%edi
  shr    $0x10,%rsi
  movzbl %sil,%esi
  call   <VIM_HIF_SetReg8@plt>
  movzbl %bh,%esi
  mov    $0x66,%edi
  call   <VIM_HIF_SetReg8@plt>
  movzbl %bl,%esi
  mov    $0x67,%edi
  pop    %rbx
  jmp    1050 <VIM_HIF_SetReg8@plt>
```

assistant: ```c
void VIM_JPEG_SetTimerInterval(unsigned long dwMs, unsigned long dwMclk) {
  unsigned short Num1Ms;
  Num1Ms = dwMclk / 1000;
  dwMs *= Num1Ms;
  VIM_HIF_SetReg8((0x0000 + 0x064), (unsigned char)(dwMs >> 24));
  VIM_HIF_SetReg8((0x0000 + 0x065), (unsigned char)(dwMs >> 16));
  VIM_HIF_SetReg8((0x0000 + 0x066), (unsigned char)(dwMs >> 8));
  VIM_HIF_SetReg8((0x0000 + 0x067), (unsigned char)dwMs);
}
```