user: 请将以下的汇编代码转换成C语言代码：

```asm
<rbcholu>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  add    $0xffffffffffffff80,%rsp
  mov    %rdi,-0x68(%rbp)
  mov    %esi,-0x6c(%rbp)
  mov    %edx,-0x70(%rbp)
  mov    %rcx,-0x78(%rbp)
  mov    %r8,-0x80(%rbp)
  movl   $0x20,-0x3c(%rbp)
  mov    -0x3c(%rbp),%eax
  imul   %eax,%eax
  mov    %eax,-0x38(%rbp)
  cmpl   $0x20,-0x6c(%rbp)
  jg     L89
  mov    -0x78(%rbp),%rcx
  mov    -0x70(%rbp),%edx
  mov    -0x6c(%rbp),%esi
  mov    -0x68(%rbp),%rax
  mov    %rax,%rdi
  call   <rcholu@plt>
  mov    %eax,-0x40(%rbp)
  cmpl   $0xffffffff,-0x40(%rbp)
  jne    L137
  mov    $0xffffffff,%eax
  jmp    L176
L89:
  mov    -0x6c(%rbp),%eax
  sub    -0x3c(%rbp),%eax
  mov    %eax,-0x34(%rbp)
  mov    -0x3c(%rbp),%eax
  cltq
  shl    $0x3,%eax
  mov    %eax,%edi
  call   <malloc@plt>
  mov    %rax,-0x20(%rbp)
  mov    -0x3c(%rbp),%eax
  cltq
  shl    $0x3,%eax
  mov    %eax,%edi
  call   <malloc@plt>
  mov    %rax,-0x18(%rbp)
  mov    -0x34(%rbp),%eax
  cltq
  mov    %eax,%edx
  mov    -0x3c(%rbp),%eax
  cltq
  imul   %edx,%eax
  shl    $0x3,%eax
  mov    %eax,%edi
  call   <malloc@plt>
  mov    %rax,-0x10(%rbp)
  mov    -0x34(%rbp),%eax
  cltq
  mov    %eax,%edx
  mov    -0x3c(%rbp),%eax
  cltq
  imul   %edx,%eax
  shl    $0x3,%eax
  mov    %eax,%edi
  call   <malloc@plt>
  mov    %rax,-0x8(%rbp)
  mov    -0x78(%rbp),%rcx
  mov    -0x70(%rbp),%edx
  mov    -0x3c(%rbp),%esi
  mov    -0x68(%rbp),%rax
  mov    %rax,%rdi
  call   <rcholu@plt>
  movl   $0x0,-0x54(%rbp)
  jmp    L52
L170:
  mov    -0x54(%rbp),%eax
  imul   -0x70(%rbp),%eax
  mov    %eax,-0x2c(%rbp)
  movl   $0x0,-0x48(%rbp)
  movl   $0x0,-0x50(%rbp)
  jmp    L129
L83:
  mov    -0x50(%rbp),%edx
  mov    -0x2c(%rbp),%eax
  add    %edx,%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x68(%rbp),%rax
  add    %rax,%rdx
  mov    -0x48(%rbp),%ecx
  mov    -0x54(%rbp),%eax
  add    %ecx,%eax
  cltq
  lea    0x0(,%rax,8),%rcx
  mov    -0x80(%rbp),%rax
  add    %rcx,%rax
  movsd  (%rdx),%xmm0
  movsd  %xmm0,(%rax)
  mov    -0x3c(%rbp),%eax
  add    %eax,-0x48(%rbp)
  addl   $0x1,-0x50(%rbp)
L129:
  mov    -0x50(%rbp),%eax
  cmp    -0x6c(%rbp),%eax
  jl     L83
  addl   $0x1,-0x54(%rbp)
L52:
  mov    -0x54(%rbp),%eax
  cmp    -0x3c(%rbp),%eax
  jl     L170
  movl   $0x0,-0x4c(%rbp)
  jmp    L64
L122:
  mov    -0x4c(%rbp),%eax
  imul   -0x3c(%rbp),%eax
  mov    %eax,-0x48(%rbp)
  movl   $0x0,-0x54(%rbp)
  jmp    L40
L31:
  mov    -0x38(%rbp),%edx
  mov    -0x48(%rbp),%eax
  add    %eax,%edx
  mov    -0x54(%rbp),%eax
  add    %edx,%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x80(%rbp),%rax
  add    %rax,%rdx
  mov    -0x54(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rcx
  mov    -0x18(%rbp),%rax
  add    %rcx,%rax
  movsd  (%rdx),%xmm0
  movsd  %xmm0,(%rax)
  mov    -0x54(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x20(%rbp),%rax
  add    %rdx,%rax
  pxor   %xmm0,%xmm0
  movsd  %xmm0,(%rax)
  addl   $0x1,-0x54(%rbp)
L40:
  mov    -0x54(%rbp),%eax
  cmp    -0x3c(%rbp),%eax
  jl     L31
  movl   $0x0,-0x54(%rbp)
  jmp    L182
L206:
  mov    -0x54(%rbp),%eax
  imul   -0x3c(%rbp),%eax
  mov    %eax,-0x2c(%rbp)
  pxor   %xmm0,%xmm0
  movsd  %xmm0,-0x28(%rbp)
  movl   $0x0,-0x50(%rbp)
  jmp    L199
L42:
  mov    -0x2c(%rbp),%edx
  mov    -0x50(%rbp),%eax
  add    %edx,%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x80(%rbp),%rax
  add    %rdx,%rax
  movsd  (%rax),%xmm1
  mov    -0x50(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x20(%rbp),%rax
  add    %rdx,%rax
  movsd  (%rax),%xmm0
  mulsd  %xmm1,%xmm0
  movsd  -0x28(%rbp),%xmm1
  addsd  %xmm1,%xmm0
  movsd  %xmm0,-0x28(%rbp)
  addl   $0x1,-0x50(%rbp)
L199:
  mov    -0x50(%rbp),%eax
  cmp    -0x54(%rbp),%eax
  jl     L42
  mov    -0x54(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  movsd  (%rax),%xmm0
  subsd  -0x28(%rbp),%xmm0
  mov    -0x2c(%rbp),%edx
  mov    -0x54(%rbp),%eax
  add    %edx,%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x80(%rbp),%rax
  add    %rdx,%rax
  movsd  (%rax),%xmm1
  mov    -0x54(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x20(%rbp),%rax
  add    %rdx,%rax
  divsd  %xmm1,%xmm0
  movsd  %xmm0,(%rax)
  addl   $0x1,-0x54(%rbp)
L182:
  mov    -0x54(%rbp),%eax
  cmp    -0x3c(%rbp),%eax
  jl     L206
  mov    -0x3c(%rbp),%edx
  mov    -0x4c(%rbp),%eax
  add    %edx,%eax
  mov    %eax,-0x44(%rbp)
  movl   $0x0,-0x54(%rbp)
  jmp    L172
L210:
  mov    -0x54(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x20(%rbp),%rax
  add    %rax,%rdx
  mov    -0x44(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rcx
  mov    -0x68(%rbp),%rax
  add    %rcx,%rax
  movsd  (%rdx),%xmm0
  movsd  %xmm0,(%rax)
  mov    -0x54(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x20(%rbp),%rax
  add    %rax,%rdx
  mov    -0x48(%rbp),%ecx
  mov    -0x54(%rbp),%eax
  add    %ecx,%eax
  cltq
  lea    0x0(,%rax,8),%rcx
  mov    -0x10(%rbp),%rax
  add    %rcx,%rax
  movsd  (%rdx),%xmm0
  movsd  %xmm0,(%rax)
  mov    -0x70(%rbp),%eax
  add    %eax,-0x44(%rbp)
  addl   $0x1,-0x54(%rbp)
L172:
  mov    -0x54(%rbp),%eax
  cmp    -0x3c(%rbp),%eax
  jl     L210
  addl   $0x1,-0x4c(%rbp)
L64:
  mov    -0x4c(%rbp),%eax
  cmp    -0x34(%rbp),%eax
  jl     L122
  mov    -0x8(%rbp),%rcx
  mov    -0x3c(%rbp),%edx
  mov    -0x34(%rbp),%esi
  mov    -0x10(%rbp),%rax
  mov    %rax,%rdi
  call   <mtranspose@plt>
  mov    -0x34(%rbp),%r8d
  mov    -0x3c(%rbp),%edi
  mov    -0x34(%rbp),%ecx
  mov    -0x80(%rbp),%rdx
  mov    -0x8(%rbp),%rsi
  mov    -0x10(%rbp),%rax
  mov    %r8d,%r9d
  mov    %edi,%r8d
  mov    %rax,%rdi
  call   <mmult@plt>
  mov    -0x10(%rbp),%rax
  mov    %rax,%rdi
  call   <free@plt>
  mov    -0x8(%rbp),%rax
  mov    %rax,%rdi
  call   <free@plt>
  mov    -0x18(%rbp),%rax
  mov    %rax,%rdi
  call   <free@plt>
  mov    -0x20(%rbp),%rax
  mov    %rax,%rdi
  call   <free@plt>
  movl   $0x0,-0x54(%rbp)
  jmp    L177
L139:
  mov    -0x3c(%rbp),%eax
  imul   -0x70(%rbp),%eax
  mov    %eax,%edx
  mov    -0x3c(%rbp),%eax
  add    %eax,%edx
  mov    -0x54(%rbp),%eax
  imul   -0x70(%rbp),%eax
  add    %edx,%eax
  mov    %eax,-0x48(%rbp)
  mov    -0x54(%rbp),%eax
  imul   -0x34(%rbp),%eax
  mov    %eax,-0x30(%rbp)
  mov    -0x54(%rbp),%eax
  mov    %eax,-0x50(%rbp)
  jmp    L221
L68:
  mov    -0x50(%rbp),%edx
  mov    -0x48(%rbp),%eax
  add    %edx,%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x68(%rbp),%rax
  add    %rdx,%rax
  movsd  (%rax),%xmm0
  mov    -0x50(%rbp),%edx
  mov    -0x30(%rbp),%eax
  add    %edx,%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x80(%rbp),%rax
  add    %rdx,%rax
  movsd  (%rax),%xmm1
  mov    -0x50(%rbp),%edx
  mov    -0x48(%rbp),%eax
  add    %edx,%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x68(%rbp),%rax
  add    %rdx,%rax
  subsd  %xmm1,%xmm0
  movsd  %xmm0,(%rax)
  addl   $0x1,-0x50(%rbp)
L221:
  mov    -0x50(%rbp),%eax
  cmp    -0x34(%rbp),%eax
  jl     L68
  addl   $0x1,-0x54(%rbp)
L177:
  mov    -0x54(%rbp),%eax
  cmp    -0x34(%rbp),%eax
  jl     L139
  mov    -0x3c(%rbp),%eax
  imul   -0x70(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x3c(%rbp),%eax
  cltq
  add    %rdx,%rax
  lea    0x0(,%rax,8),%rdx
  mov    -0x68(%rbp),%rax
  lea    (%rdx,%rax,1),%rdi
  mov    -0x80(%rbp),%rsi
  mov    -0x78(%rbp),%rcx
  mov    -0x70(%rbp),%edx
  mov    -0x34(%rbp),%eax
  mov    %rsi,%r8
  mov    %eax,%esi
  call   <rbcholu>
  mov    %eax,-0x40(%rbp)
  cmpl   $0xffffffff,-0x40(%rbp)
  jne    L137
  mov    $0xffffffff,%eax
  jmp    L176
L137:
  mov    -0x40(%rbp),%eax
L176:
  leave
  ret
```

assistant: ```c
int rbcholu(double *A, int N, int stride, double *UB, double *UT) {
  int bs, bb, i, j, Nb, t, k, u, v, w, sc;
  double *b, *x, *U12, *U12T;
  double sum;
  bs = (int)32;
  bb = bs * bs;
  if (N <= 32) {
    sc = rcholu(A, N, stride, UB);
    if (sc == -1) {
      return -1;
    }
  } else {
    Nb = N - bs;
    x = (double *)malloc(sizeof(double) * bs);
    b = (double *)malloc(sizeof(double) * bs);
    U12T = (double *)malloc(sizeof(double) * Nb * bs);
    U12 = (double *)malloc(sizeof(double) * Nb * bs);
    rcholu(A, bs, stride, UB);
    for (i = 0; i < bs; ++i) {
      t = i * stride;
      u = 0;
      for (j = 0; j < N; ++j) {
        UT[u + i] = A[j + t];
        u += bs;
      }
    }
    for (k = 0; k < Nb; ++k) {
      u = k * bs;
      for (i = 0; i < bs; ++i) {
        b[i] = UT[bb + u + i];
        x[i] = 0.;
      }
      for (i = 0; i < bs; ++i) {
        t = i * bs;
        sum = 0;
        for (j = 0; j < i; ++j) {
          sum += UT[t + j] * x[j];
        }
        x[i] = (b[i] - sum) / UT[t + i];
      }
      v = bs + k;
      for (i = 0; i < bs; ++i) {
        A[v] = x[i];
        U12T[u + i] = x[i];
        v += stride;
      }
    }
    mtranspose(U12T, Nb, bs, U12);
    mmult(U12T, U12, UT, Nb, bs, Nb);
    free(U12T);
    free(U12);
    free(b);
    free(x);
    for (i = 0; i < Nb; ++i) {
      u = bs * stride + bs + i * stride;
      w = i * Nb;
      for (j = i; j < Nb; j++) {
        A[j + u] -= UT[j + w];
      }
    }
    sc = rbcholu(A + bs * stride + bs, Nb, stride, UB, UT);
    if (sc == -1) {
      return -1;
    }
  }
  return sc;
}
```