user: 请将这段汇编代码片段转换成等效的C代码：

```asm
<housholder>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  push   %r13
  push   %r12
  push   %rbx
  sub    $0x68,%rsp
  mov    %rdi,-0x68(%rbp)
  mov    %esi,-0x6c(%rbp)
  mov    %edx,-0x70(%rbp)
  mov    %ecx,-0x74(%rbp)
  mov    %r8d,-0x78(%rbp)
  mov    %fs:0x28,%rax
  mov    %rax,-0x28(%rbp)
  xor    %eax,%eax
  mov    %rsp,%rax
  mov    %rax,%rbx
  mov    -0x70(%rbp),%eax
  movslq %eax,%rdx
  sub    $0x1,%rdx
  mov    %rdx,-0x38(%rbp)
  movslq %eax,%rdx
  mov    %rdx,%r12
  mov    $0x0,%r13d
  movslq %eax,%rdx
  mov    %rdx,%r10
  mov    $0x0,%r11d
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    $0x10,%eax
  sub    $0x1,%rax
  add    %rdx,%rax
  mov    $0x10,%esi
  mov    $0x0,%edx
  div    %rsi
  imul   $0x10,%rax,%rax
  mov    %rax,%rcx
  and    $0xfffffffffffff000,%rcx
  mov    %rsp,%rdx
  sub    %rcx,%rdx
L90:
  cmp    %rdx,%rsp
  je     L148
  sub    $0x1000,%rsp
  orq    $0x0,0xff8(%rsp)
  jmp    L90
L148:
  mov    %rax,%rdx
  and    $0xfff,%edx
  sub    %rdx,%rsp
  mov    %rax,%rdx
  and    $0xfff,%edx
  test   %rdx,%rdx
  je     L116
  and    $0xfff,%eax
  sub    $0x8,%rax
  add    %rsp,%rax
  orq    $0x0,(%rax)
L116:
  mov    %rsp,%rax
  add    $0x7,%rax
  shr    $0x3,%rax
  shl    $0x3,%rax
  mov    %rax,-0x30(%rbp)
  movl   $0x0,-0x4c(%rbp)
  jmp    L133
L54:
  mov    -0x70(%rbp),%eax
  cltq
  shl    $0x3,%eax
  mov    %eax,%edx
  mov    -0x30(%rbp),%rax
  mov    $0x0,%esi
  mov    %rax,%rdi
  call   <memset@plt>
  mov    -0x30(%rbp),%r9
  mov    -0x4c(%rbp),%r8d
  mov    -0x70(%rbp),%ecx
  mov    -0x4c(%rbp),%edx
  mov    -0x6c(%rbp),%esi
  mov    -0x68(%rbp),%rax
  sub    $0x8,%rsp
  lea    -0x48(%rbp),%rdi
  push   %rdi
  mov    %rax,%rdi
  call   <hougenu@plt>
  add    $0x10,%rsp
  test   %rax,%rax
  je     L114
  cmpl   $0x0,-0x78(%rbp)
  je     L29
  mov    -0x4c(%rbp),%eax
  mov    %eax,-0x54(%rbp)
  jmp    L97
L92:
  mov    -0x54(%rbp),%eax
  sub    -0x4c(%rbp),%eax
  mov    %eax,%edx
  mov    -0x6c(%rbp),%eax
  imul   -0x4c(%rbp),%eax
  mov    %eax,%ecx
  mov    -0x54(%rbp),%eax
  add    %ecx,%eax
  cltq
  add    $0x1,%rax
  lea    0x0(,%rax,8),%rcx
  mov    -0x68(%rbp),%rax
  add    %rax,%rcx
  mov    -0x30(%rbp),%rax
  movslq %edx,%rdx
  movsd  (%rax,%rdx,8),%xmm0
  movsd  %xmm0,(%rcx)
  addl   $0x1,-0x54(%rbp)
L97:
  mov    -0x54(%rbp),%eax
  cmp    -0x70(%rbp),%eax
  jl     L92
  mov    -0x6c(%rbp),%eax
  imul   -0x4c(%rbp),%eax
  mov    %eax,%edx
  mov    -0x70(%rbp),%eax
  add    %edx,%eax
  cltq
  add    $0x1,%rax
  lea    0x0(,%rax,8),%rdx
  mov    -0x68(%rbp),%rax
  add    %rdx,%rax
  movsd  -0x48(%rbp),%xmm0
  movsd  %xmm0,(%rax)
L29:
  mov    -0x4c(%rbp),%eax
  add    $0x1,%eax
  mov    %eax,-0x54(%rbp)
  jmp    L62
L73:
  pxor   %xmm0,%xmm0
  movsd  %xmm0,-0x40(%rbp)
  mov    -0x4c(%rbp),%eax
  mov    %eax,-0x50(%rbp)
  jmp    L71
L104:
  mov    -0x50(%rbp),%eax
  sub    -0x4c(%rbp),%eax
  mov    %eax,%edx
  mov    -0x30(%rbp),%rax
  movslq %edx,%rdx
  movsd  (%rax,%rdx,8),%xmm1
  mov    -0x6c(%rbp),%eax
  imul   -0x54(%rbp),%eax
  mov    %eax,%edx
  mov    -0x50(%rbp),%eax
  add    %edx,%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x68(%rbp),%rax
  add    %rdx,%rax
  movsd  (%rax),%xmm0
  mulsd  %xmm1,%xmm0
  movsd  -0x40(%rbp),%xmm1
  addsd  %xmm1,%xmm0
  movsd  %xmm0,-0x40(%rbp)
  addl   $0x1,-0x50(%rbp)
L71:
  mov    -0x50(%rbp),%eax
  cmp    -0x70(%rbp),%eax
  jl     L104
  mov    -0x4c(%rbp),%eax
  mov    %eax,-0x50(%rbp)
  jmp    L23
L52:
  mov    -0x6c(%rbp),%eax
  imul   -0x54(%rbp),%eax
  mov    %eax,%edx
  mov    -0x50(%rbp),%eax
  add    %edx,%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x68(%rbp),%rax
  add    %rdx,%rax
  movsd  (%rax),%xmm1
  movsd  -0x48(%rbp),%xmm0
  movapd %xmm0,%xmm2
  mulsd  -0x40(%rbp),%xmm2
  mov    -0x50(%rbp),%eax
  sub    -0x4c(%rbp),%eax
  mov    %eax,%edx
  mov    -0x30(%rbp),%rax
  movslq %edx,%rdx
  movsd  (%rax,%rdx,8),%xmm0
  mulsd  %xmm2,%xmm0
  mov    -0x6c(%rbp),%eax
  imul   -0x54(%rbp),%eax
  mov    %eax,%edx
  mov    -0x50(%rbp),%eax
  add    %edx,%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x68(%rbp),%rax
  add    %rdx,%rax
  addsd  %xmm1,%xmm0
  movsd  %xmm0,(%rax)
  addl   $0x1,-0x50(%rbp)
L23:
  mov    -0x50(%rbp),%eax
  cmp    -0x70(%rbp),%eax
  jl     L52
  addl   $0x1,-0x54(%rbp)
L62:
  mov    -0x54(%rbp),%eax
  cmp    -0x74(%rbp),%eax
  jl     L73
L114:
  addl   $0x1,-0x4c(%rbp)
L133:
  mov    -0x4c(%rbp),%eax
  cmp    -0x74(%rbp),%eax
  jl     L54
  mov    %rbx,%rsp
  nop
  mov    -0x28(%rbp),%rax
  sub    %fs:0x28,%rax
  je     L117
  call   <__stack_chk_fail@plt>
L117:
  lea    -0x18(%rbp),%rsp
  pop    %rbx
  pop    %r12
  pop    %r13
  pop    %rbp
  ret
```

assistant: ```c
void housholder(double *A, int lda, int m, int n, int lsav) {
  int i, j, col;
  double u[m], beta, sum;
  for (col = 0; col < n; col++) {
    memset(u, 0, sizeof(double) * m);
    if (hougenu(A, lda, col, m, col, u, &beta)) {
      if (lsav) {
        for (i = col; i < m; i++) {
          A[lda * col + i + 1] = u[i - col];
        }
        A[lda * col + m + 1] = beta;
      }
      for (i = col + 1; i < n; i++) {
        sum = 0.0;
        for (j = col; j < m; j++)
          sum += u[j - col] * A[j + lda * i];
        for (j = col; j < m; j++)
          A[j + lda * i] += beta * sum * u[j - col];
      }
    }
  }
}
```