user: Demonstrate the C code that generates the assembly output below:

```asm
<AND_HOST_REG_B>:
  endbr64
  push   %rbp
  push   %rbx
  sub    $0x8,%rsp
  mov    %edi,%ebp
  mov    %esi,%ebx
  mov    %edi,%edx
  and    %esi,%edx
  test   $0x8,%dl
  je     L166
  test   $0x10,%dil
  jne    L51
  test   $0x10,%sil
  je     L178
  mov    $0x66,%edi
  call   <addbyte@plt>
  mov    $0x44,%edi
  call   <addbyte@plt>
  mov    $0x89,%edi
  call   <addbyte@plt>
  lea    0x0(,%rbx,8),%edi
  and    $0x38,%edi
  or     $0xc0,%dil
  call   <addbyte@plt>
  mov    $0x66,%edi
  call   <addbyte@plt>
  mov    $0xc1,%edi
  call   <addbyte@plt>
  mov    $0xe8,%edi
  call   <addbyte@plt>
  mov    $0x8,%edi
  call   <addbyte@plt>
  mov    $0x41,%edi
  call   <addbyte@plt>
  mov    $0x20,%edi
  call   <addbyte@plt>
  mov    %ebp,%edi
  and    $0x7,%edi
  or     $0xc0,%dil
  call   <addbyte@plt>
L197:
  add    $0x8,%rsp
  pop    %rbx
  pop    %rbp
  ret
L51:
  mov    $0x66,%edi
  call   <addbyte@plt>
  mov    $0x44,%edi
  call   <addbyte@plt>
  mov    $0x89,%edi
  call   <addbyte@plt>
  lea    0x0(,%rbx,8),%edi
  and    $0x38,%edi
  or     $0xc0,%dil
  call   <addbyte@plt>
  test   $0x10,%bl
  je     L28
L38:
  mov    $0x66,%edi
  call   <addbyte@plt>
  mov    $0xd,%edi
  call   <addbyte@plt>
  mov    $0xff,%edi
  call   <addword@plt>
  mov    $0x66,%edi
  call   <addbyte@plt>
  mov    $0x41,%edi
  call   <addbyte@plt>
  mov    $0x21,%edi
  call   <addbyte@plt>
  mov    %ebp,%edi
  and    $0x7,%edi
  or     $0xc0,%dil
  call   <addbyte@plt>
  jmp    L197
L28:
  mov    $0x66,%edi
  call   <addbyte@plt>
  mov    $0xc1,%edi
  call   <addbyte@plt>
  mov    $0xe0,%edi
  call   <addbyte@plt>
  mov    $0x8,%edi
  call   <addbyte@plt>
  jmp    L38
L178:
  mov    $0x45,%edi
  call   <addbyte@plt>
  mov    $0x20,%edi
  call   <addbyte@plt>
  lea    0x0(,%rbx,8),%edi
  and    $0x38,%edi
  mov    %ebp,%eax
  and    $0x7,%eax
  or     %eax,%edi
  or     $0xc0,%dil
  call   <addbyte@plt>
  jmp    L197
L166:
  test   $0x8,%dil
  je     L54
  test   $0x10,%dil
  je     L107
  mov    $0x66,%edi
  call   <addbyte@plt>
  mov    $0xc1,%edi
  call   <addbyte@plt>
  mov    %ebx,%edi
  or     $0xe0,%dil
  call   <addbyte@plt>
  mov    $0x8,%edi
  call   <addbyte@plt>
  mov    $0x66,%edi
  call   <addbyte@plt>
  mov    $0x81,%edi
  call   <addbyte@plt>
  mov    %ebx,%edi
  or     $0xc8,%dil
  call   <addbyte@plt>
  mov    $0xff,%edi
  call   <addword@plt>
  mov    $0x66,%edi
  call   <addbyte@plt>
  mov    $0x41,%edi
  call   <addbyte@plt>
  mov    $0x21,%edi
  call   <addbyte@plt>
  lea    0x0(,%rbx,8),%edi
  and    $0x38,%edi
  mov    %ebp,%eax
  and    $0x7,%eax
  or     %eax,%edi
  or     $0xc0,%dil
  call   <addbyte@plt>
  jmp    L197
L107:
  mov    $0x41,%edi
  call   <addbyte@plt>
  mov    $0x20,%edi
  call   <addbyte@plt>
  lea    0x0(,%rbx,8),%edi
  and    $0x38,%edi
  mov    %ebp,%eax
  and    $0x7,%eax
  or     %eax,%edi
  or     $0xc0,%dil
  call   <addbyte@plt>
  jmp    L197
L54:
  test   $0x8,%sil
  je     L72
  test   $0x10,%dil
  jne    L41
L176:
  test   $0x10,%bl
  je     L45
  mov    $0x41,%edi
  call   <addbyte@plt>
  mov    $0xf,%edi
  call   <addbyte@plt>
  mov    $0xb7,%edi
  call   <addbyte@plt>
  and    $0x7,%ebx
  mov    %ebx,%edi
  or     $0xd8,%dil
  call   <addbyte@plt>
  mov    $0xc1,%edi
  call   <addbyte@plt>
  mov    $0xeb,%edi
  call   <addbyte@plt>
  mov    $0x8,%edi
  call   <addbyte@plt>
  mov    $0x20,%edi
  call   <addbyte@plt>
  mov    %ebp,%edi
  and    $0x7,%edi
  or     $0xd8,%dil
  call   <addbyte@plt>
  jmp    L197
L41:
  mov    $0xc1,%edi
  call   <addbyte@plt>
  mov    %ebp,%edi
  and    $0x7,%edi
  or     $0xe8,%dil
  call   <addbyte@plt>
  mov    $0x8,%edi
  call   <addbyte@plt>
  jmp    L176
L45:
  mov    $0x44,%edi
  call   <addbyte@plt>
  mov    $0x20,%edi
  call   <addbyte@plt>
  lea    0x0(,%rbx,8),%edi
  and    $0x38,%edi
  mov    %ebp,%eax
  and    $0x7,%eax
  or     %eax,%edi
  or     $0xc0,%dil
  call   <addbyte@plt>
  jmp    L197
L72:
  test   $0x10,%dil
  jne    L169
L151:
  test   $0x10,%bl
  je     L49
  mov    $0xf,%edi
  call   <addbyte@plt>
  mov    $0xb7,%edi
  call   <addbyte@plt>
  and    $0x7,%ebx
  mov    %ebx,%edi
  or     $0xd8,%dil
  call   <addbyte@plt>
  mov    $0xc1,%edi
  call   <addbyte@plt>
  mov    $0xeb,%edi
  call   <addbyte@plt>
  mov    $0x8,%edi
  call   <addbyte@plt>
  mov    $0x20,%edi
  call   <addbyte@plt>
  mov    %ebp,%edi
  and    $0x7,%edi
  or     $0xd8,%dil
  call   <addbyte@plt>
  jmp    L197
L169:
  mov    $0xc1,%edi
  call   <addbyte@plt>
  mov    %ebp,%edi
  and    $0x7,%edi
  or     $0xe8,%dil
  call   <addbyte@plt>
  mov    $0x8,%edi
  call   <addbyte@plt>
  jmp    L151
L49:
  mov    $0x20,%edi
  call   <addbyte@plt>
  lea    0x0(,%rbx,8),%edi
  and    $0x38,%edi
  mov    %ebp,%eax
  and    $0x7,%eax
  or     %eax,%edi
  or     $0xc0,%dil
  call   <addbyte@plt>
  jmp    L197
```

assistant: ```c
void AND_HOST_REG_B(int dst_reg, int src_reg) {
  if (dst_reg & src_reg & 8) {
    if (dst_reg & 0x10) {
      addbyte(0x66);
      addbyte(0x44);
      addbyte(0x89);
      addbyte(0xc0 | ((src_reg & 7) << 3));
      if (!(src_reg & 0x10)) {
        addbyte(0x66);
        addbyte(0xc1);
        addbyte(0xe0);
        addbyte(8);
      }
      addbyte(0x66);
      addbyte(0x0d);
      addword(0xff);
      addbyte(0x66);
      addbyte(0x41);
      addbyte(0x21);
      addbyte(0xc0 | (dst_reg & 7));
    } else if (src_reg & 0x10) {
      addbyte(0x66);
      addbyte(0x44);
      addbyte(0x89);
      addbyte(0xc0 | ((src_reg & 7) << 3));
      addbyte(0x66);
      addbyte(0xc1);
      addbyte(0xe8);
      addbyte(8);
      addbyte(0x41);
      addbyte(0x20);
      addbyte(0xc0 | (dst_reg & 7));
    } else {
      addbyte(0x45);
      addbyte(0x20);
      addbyte(0xc0 | (dst_reg & 7) | ((src_reg & 7) << 3));
    }
  } else if (dst_reg & 8) {
    if (dst_reg & 0x10) {
      addbyte(0x66);
      addbyte(0xc1);
      addbyte(0xe0 | src_reg);
      addbyte(0x08);
      addbyte(0x66);
      addbyte(0x81);
      addbyte(0xc8 | src_reg);
      addword(0xff);
      addbyte(0x66);
      addbyte(0x41);
      addbyte(0x21);
      addbyte(0xc0 | (dst_reg & 7) | ((src_reg & 7) << 3));
    } else {
      addbyte(0x41);
      addbyte(0x20);
      addbyte(0xc0 | (dst_reg & 7) | ((src_reg & 7) << 3));
    }
  } else if (src_reg & 8) {
    if (dst_reg & 0x10) {
      addbyte(0xc1);
      addbyte(0xe8 | (dst_reg & 7));
      addbyte(8);
    }
    if (src_reg & 0x10) {
      addbyte(0x41);
      addbyte(0x0f);
      addbyte(0xb7);
      addbyte(0xd8 | (src_reg & 7));
      addbyte(0xc1);
      addbyte(0xeb);
      addbyte(8);
      addbyte(0x20);
      addbyte(0xd8 | (dst_reg & 7));
    } else {
      addbyte(0x44);
      addbyte(0x20);
      addbyte(0xc0 | (dst_reg & 7) | ((src_reg & 7) << 3));
    }
  } else {
    if (dst_reg & 0x10) {
      addbyte(0xc1);
      addbyte(0xe8 | (dst_reg & 7));
      addbyte(8);
    }
    if (src_reg & 0x10) {
      addbyte(0x0f);
      addbyte(0xb7);
      addbyte(0xd8 | (src_reg & 7));
      addbyte(0xc1);
      addbyte(0xeb);
      addbyte(8);
      addbyte(0x20);
      addbyte(0xd8 | (dst_reg & 7));
    } else {
      addbyte(0x20);
      addbyte(0xc0 | (dst_reg & 7) | ((src_reg & 7) << 3));
    }
  }
}
```