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

```asm
<power_even>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x48,%rsp
  mov    %esi,0x18(%rsp)
  movl   $0x1,0x10(%rsp)
  cmp    $0x1,%esi
  je     L26
L14:
  mov    0x18(%rsp),%esi
  mov    %esi,%eax
  shr    $0x1f,%eax
  add    %esi,%eax
  sar    %eax
  mov    %eax,0x18(%rsp)
  mov    %eax,%r11d
  cmp    $0x1,%eax
  je     L131
  mov    %r11d,%eax
  movl   $0x1,0x14(%rsp)
  shr    $0x1f,%eax
  add    %r11d,%eax
  sar    %eax
  cmp    $0x1,%eax
  je     L148
L30:
  movl   $0x1,0xc(%rsp)
  mov    %eax,%r10d
  mov    %eax,0x1c(%rsp)
L152:
  mov    %r10d,%eax
  shr    $0x1f,%eax
  add    %r10d,%eax
  sar    %eax
  mov    %eax,%r10d
  cmp    $0x1,%eax
  je     L96
  mov    %eax,%r8d
  mov    $0x1,%r11d
L66:
  mov    %r8d,%eax
  shr    $0x1f,%eax
  add    %r8d,%eax
  sar    %eax
  mov    %eax,%r8d
  cmp    $0x1,%eax
  je     L176
  mov    %eax,%ebx
  mov    $0x1,%ecx
  mov    %ebx,%eax
  shr    $0x1f,%eax
  add    %ebx,%eax
  sar    %eax
  mov    %eax,%ebx
  cmp    $0x1,%eax
  je     L31
L38:
  mov    $0x1,%r12d
  mov    %eax,%edx
L114:
  mov    %edx,%eax
  shr    $0x1f,%eax
  add    %edx,%eax
  sar    %eax
  mov    %eax,%edx
  cmp    $0x1,%eax
  je     L41
  mov    $0x1,%r14d
  mov    %eax,%r9d
L76:
  mov    %r9d,%eax
  shr    $0x1f,%eax
  add    %r9d,%eax
  sar    %eax
  mov    %eax,%r9d
  cmp    $0x1,%eax
  je     L50
  mov    %eax,%ebp
  mov    $0x1,%r15d
  mov    %ebp,%eax
  shr    $0x1f,%eax
  add    %ebp,%eax
  sar    %eax
  mov    %eax,%ebp
  cmp    $0x1,%eax
  je     L83
L46:
  mov    %eax,%esi
  mov    $0x1,%r13d
L7:
  mov    %esi,%eax
  mov    %ecx,0x3c(%rsp)
  shr    $0x1f,%eax
  mov    %r9d,0x38(%rsp)
  add    %esi,%eax
  mov    %edx,0x34(%rsp)
  sar    %eax
  mov    %r8d,0x30(%rsp)
  mov    %eax,%esi
  mov    %r10d,0x2c(%rsp)
  mov    %r11d,0x28(%rsp)
  mov    %edi,0x20(%rsp)
  mov    %eax,0x24(%rsp)
  call   <power_even>
  mov    0x24(%rsp),%esi
  mov    0x20(%rsp),%edi
  imul   %eax,%r13d
  mov    0x28(%rsp),%r11d
  mov    0x2c(%rsp),%r10d
  cmp    $0x1,%esi
  mov    0x30(%rsp),%r8d
  mov    0x34(%rsp),%edx
  mov    0x38(%rsp),%r9d
  mov    0x3c(%rsp),%ecx
  jne    L7
  mov    %ebp,%eax
  imul   %edi,%r13d
  shr    $0x1f,%eax
  add    %ebp,%eax
  sar    %eax
  imul   %r13d,%r15d
  mov    %eax,%ebp
  cmp    $0x1,%eax
  jne    L46
L83:
  imul   %edi,%r15d
  imul   %edi,%r15d
  imul   %r15d,%r14d
  jmp    L76
L41:
  imul   %edi,%r12d
  mov    %ebx,%eax
  shr    $0x1f,%eax
  add    %ebx,%eax
  imul   %edi,%r12d
  sar    %eax
  mov    %eax,%ebx
  imul   %r12d,%ecx
  cmp    $0x1,%eax
  jne    L38
L31:
  mov    %ecx,%eax
  imul   %edi,%eax
  imul   %edi,%eax
  imul   %eax,%r11d
  jmp    L66
L50:
  imul   %edi,%r14d
  imul   %edi,%r14d
  imul   %r14d,%r12d
  jmp    L114
L176:
  mov    %r11d,%eax
  imul   %edi,%eax
  imul   %edi,%eax
  imul   0xc(%rsp),%eax
  mov    %eax,0xc(%rsp)
  jmp    L152
L96:
  mov    0xc(%rsp),%eax
  mov    0x1c(%rsp),%r11d
  imul   %edi,%eax
  imul   %edi,%eax
  imul   0x14(%rsp),%eax
  mov    %eax,0x14(%rsp)
  mov    %r11d,%eax
  shr    $0x1f,%eax
  add    %r11d,%eax
  sar    %eax
  cmp    $0x1,%eax
  jne    L30
L148:
  mov    0x14(%rsp),%eax
  imul   %edi,%eax
  imul   %edi,%eax
  imul   0x10(%rsp),%eax
  mov    %eax,0x10(%rsp)
  jmp    L14
L131:
  mov    0x10(%rsp),%eax
  imul   %edi,%eax
  imul   %eax,%edi
L26:
  add    $0x48,%rsp
  mov    %edi,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
```

assistant: ```c
int power_even(int number, int even) {
  if (even == 1) {
    return number;
  } else {
    return power_even(number, even / 2) * power_even(number, even / 2);
  }
}
```