user: 请显示与下面列出的汇编代码相匹配的C语言实现：

```asm
<_pow1>:
  endbr64
  push   %r15
  mov    %esi,%eax
  push   %r14
  sar    %eax
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  mov    %esi,%ebx
  sub    %eax,%ebx
  sub    $0x48,%rsp
  mov    %ebx,0x1c(%rsp)
  cmp    $0x1,%esi
  je     L60
  movl   $0x1,0xc(%rsp)
L37:
  mov    %eax,%ecx
  mov    %eax,%edx
  sar    %ecx
  sub    %ecx,%edx
  mov    %edx,0x18(%rsp)
  mov    %edi,%edx
  cmp    $0x1,%eax
  je     L59
  movl   $0x1,0x10(%rsp)
L179:
  mov    %ecx,%edx
  mov    %ecx,%eax
  sar    %edx
  sub    %edx,%eax
  mov    %eax,0x20(%rsp)
  mov    %edi,%eax
  cmp    $0x1,%ecx
  je     L252
  movl   $0x1,0x14(%rsp)
L104:
  mov    %edx,%ecx
  mov    %edx,%r11d
  mov    %edi,%r9d
  sar    %ecx
  sub    %ecx,%r11d
  cmp    $0x1,%edx
  je     L231
  mov    $0x1,%r9d
L88:
  mov    %ecx,%eax
  mov    %ecx,%ebp
  mov    %edi,%edx
  sar    %eax
  sub    %eax,%ebp
  cmp    $0x1,%ecx
  je     L211
  mov    $0x1,%edx
L217:
  mov    %eax,%esi
  mov    %eax,%ecx
  mov    %edi,%ebx
  sar    %esi
  sub    %esi,%ecx
  cmp    $0x1,%eax
  je     L95
  mov    $0x1,%ebx
L96:
  mov    %esi,%r8d
  mov    %esi,%r10d
  mov    %edi,%r14d
  sar    %r8d
  sub    %r8d,%r10d
  cmp    $0x1,%esi
  je     L12
  mov    $0x1,%r14d
L110:
  mov    %r8d,%eax
  mov    %r8d,%r15d
  mov    %edi,%r12d
  sar    %eax
  sub    %eax,%r15d
  cmp    $0x1,%r8d
  je     L25
  mov    %ebp,%r8d
  mov    $0x1,%r12d
  mov    %ebx,%ebp
L94:
  mov    %eax,%esi
  mov    %eax,%ebx
  mov    %edi,%r13d
  sar    %esi
  sub    %esi,%ebx
  cmp    $0x1,%eax
  je     L183
  mov    $0x1,%r13d
L248:
  mov    %r10d,0x3c(%rsp)
  mov    %ecx,0x38(%rsp)
  mov    %r8d,0x34(%rsp)
  mov    %edx,0x30(%rsp)
  mov    %r9d,0x2c(%rsp)
  mov    %r11d,0x28(%rsp)
  mov    %edi,0x24(%rsp)
  call   <_pow1>
  mov    %ebx,%esi
  mov    0x24(%rsp),%edi
  mov    0x28(%rsp),%r11d
  imul   %eax,%r13d
  sar    %esi
  mov    %ebx,%eax
  mov    0x2c(%rsp),%r9d
  sub    %esi,%ebx
  cmp    $0x1,%eax
  mov    0x30(%rsp),%edx
  mov    0x34(%rsp),%r8d
  mov    0x38(%rsp),%ecx
  mov    0x3c(%rsp),%r10d
  jne    L248
  imul   %edi,%r13d
L183:
  mov    %r15d,%eax
  imul   %r13d,%r12d
  mov    %r15d,%esi
  sar    %eax
  sub    %eax,%esi
  cmp    $0x1,%r15d
  je     L26
  mov    %esi,%r15d
  jmp    L94
L77:
  imul   %edi,%ebx
L95:
  mov    %ebp,%eax
  imul   %ebx,%edx
  mov    %ebp,%ecx
  sar    %eax
  sub    %eax,%ecx
  cmp    $0x1,%ebp
  je     L9
  mov    %ecx,%ebp
  jmp    L217
L26:
  imul   %edi,%r12d
  mov    %ebp,%ebx
  mov    %r8d,%ebp
L25:
  mov    %r10d,%r8d
  imul   %r12d,%r14d
  mov    %r10d,%eax
  sar    %r8d
  sub    %r8d,%eax
  cmp    $0x1,%r10d
  je     L214
  mov    %eax,%r10d
  jmp    L110
  nopw   0x0(%rax,%rax,1)
L214:
  imul   %edi,%r14d
L12:
  mov    %ecx,%esi
  imul   %r14d,%ebx
  mov    %ecx,%eax
  sar    %esi
  sub    %esi,%eax
  cmp    $0x1,%ecx
  je     L77
  mov    %eax,%ecx
  jmp    L96
L9:
  imul   %edi,%edx
L211:
  mov    %r11d,%ecx
  imul   %edx,%r9d
  mov    %r11d,%eax
  sar    %ecx
  sub    %ecx,%eax
  cmp    $0x1,%r11d
  je     L2
  mov    %eax,%r11d
  jmp    L88
L2:
  imul   %edi,%r9d
L231:
  mov    0x20(%rsp),%ebx
  imul   0x14(%rsp),%r9d
  mov    %ebx,%edx
  mov    %ebx,%eax
  sar    %edx
  mov    %r9d,0x14(%rsp)
  sub    %edx,%eax
  cmp    $0x1,%ebx
  je     L4
  mov    %eax,0x20(%rsp)
  jmp    L104
L4:
  mov    %r9d,%eax
  imul   %edi,%eax
L252:
  imul   0x10(%rsp),%eax
  mov    %eax,0x10(%rsp)
  mov    0x18(%rsp),%eax
  mov    %eax,%ebx
  sar    %ebx
  mov    %ebx,%ecx
  mov    %eax,%ebx
  sub    %ecx,%eax
  cmp    $0x1,%ebx
  je     L109
  mov    %eax,0x18(%rsp)
  jmp    L179
L109:
  mov    0x10(%rsp),%edx
  imul   %edi,%edx
L59:
  imul   0xc(%rsp),%edx
  mov    0x1c(%rsp),%ebx
  mov    %ebx,%eax
  mov    %edx,0xc(%rsp)
  sar    %eax
  mov    %ebx,%edx
  sub    %eax,%edx
  cmp    $0x1,%ebx
  je     L154
  mov    %edx,0x1c(%rsp)
  jmp    L37
L154:
  imul   0xc(%rsp),%edi
L60:
  add    $0x48,%rsp
  mov    %edi,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
```

assistant: ```c
int _pow1(int N, int M) {
  int P = M >> 1, Q = M - P;
  if (1 == M)
    return N;
  return _pow1(N, P) * _pow1(N, Q);
}
```